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apache/support/ab.c
Jean-Jacques Clar ec3144682b Using ap_max() to ensure no negative values are stored in data structure. 
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103035 13f79535-47bb-0310-9956-ffa450edef68
2004-03-19 15:39:45 +00:00

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/* Copyright 1999-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
** This program is based on ZeusBench V1.0 written by Adam Twiss
** which is Copyright (c) 1996 by Zeus Technology Ltd. http://www.zeustech.net/
**
** This software is provided "as is" and any express or implied waranties,
** including but not limited to, the implied warranties of merchantability and
** fitness for a particular purpose are disclaimed. In no event shall
** Zeus Technology Ltd. be liable for any direct, indirect, incidental, special,
** exemplary, or consequential damaged (including, but not limited to,
** procurement of substitute good or services; loss of use, data, or profits;
** or business interruption) however caused and on theory of liability. Whether
** in contract, strict liability or tort (including negligence or otherwise)
** arising in any way out of the use of this software, even if advised of the
** possibility of such damage.
**
*/
/*
** HISTORY:
** - Originally written by Adam Twiss <adam@zeus.co.uk>, March 1996
** with input from Mike Belshe <mbelshe@netscape.com> and
** Michael Campanella <campanella@stevms.enet.dec.com>
** - Enhanced by Dean Gaudet <dgaudet@apache.org>, November 1997
** - Cleaned up by Ralf S. Engelschall <rse@apache.org>, March 1998
** - POST and verbosity by Kurt Sussman <kls@merlot.com>, August 1998
** - HTML table output added by David N. Welton <davidw@prosa.it>, January 1999
** - Added Cookie, Arbitrary header and auth support. <dirkx@webweaving.org>, April 1999
** Version 1.3d
** - Increased version number - as some of the socket/error handling has
** fundamentally changed - and will give fundamentally different results
** in situations where a server is dropping requests. Therefore you can
** no longer compare results of AB as easily. Hence the inc of the version.
** They should be closer to the truth though. Sander & <dirkx@covalent.net>, End 2000.
** - Fixed proxy functionality, added median/mean statistics, added gnuplot
** output option, added _experimental/rudimentary_ SSL support. Added
** confidence guestimators and warnings. Sander & <dirkx@covalent.net>, End 2000
** - Fixed serious int overflow issues which would cause realistic (longer
** than a few minutes) run's to have wrong (but believable) results. Added
** trapping of connection errors which influenced measurements.
** Contributed by Sander Temme, Early 2001
** Version 1.3e
** - Changed timeout behavour during write to work whilst the sockets
** are filling up and apr_write() does writes a few - but not all.
** This will potentially change results. <dirkx@webweaving.org>, April 2001
** Version 2.0.36-dev
** Improvements to concurrent processing:
** - Enabled non-blocking connect()s.
** - Prevent blocking calls to apr_socket_recv() (thereby allowing AB to
** manage its entire set of socket descriptors).
** - Any error returned from apr_socket_recv() that is not EAGAIN or EOF
** is now treated as fatal.
** Contributed by Aaron Bannert, April 24, 2002
**
** Version 2.0.36-2
** Internalized the version string - this string is part
** of the Agent: header and the result output.
**
** Version 2.0.37-dev
** Adopted SSL code by Madhu Mathihalli <madhusudan_mathihalli@hp.com>
** [PATCH] ab with SSL support Posted Wed, 15 Aug 2001 20:55:06 GMT
** Introduces four 'if (int == value)' tests per non-ssl request.
**
** Version 2.0.40-dev
** Switched to the new abstract pollset API, allowing ab to
** take advantage of future apr_pollset_t scalability improvements.
** Contributed by Brian Pane, August 31, 2002
**/
/* Note: this version string should start with \d+[\d\.]* and be a valid
* string for an HTTP Agent: header when prefixed with 'ApacheBench/'.
* It should reflect the version of AB - and not that of the apache server
* it happens to accompany. And it should be updated or changed whenever
* the results are no longer fundamentally comparable to the results of
* a previous version of ab. Either due to a change in the logic of
* ab - or to due to a change in the distribution it is compiled with
* (such as an APR change in for example blocking).
*/
#define AP_AB_BASEREVISION "2.0.40-dev"
/*
* BUGS:
*
* - uses strcpy/etc.
* - has various other poor buffer attacks related to the lazy parsing of
* response headers from the server
* - doesn't implement much of HTTP/1.x, only accepts certain forms of
* responses
* - (performance problem) heavy use of strstr shows up top in profile
* only an issue for loopback usage
*/
/* -------------------------------------------------------------------- */
#if 'A' != 0x41
/* Hmmm... This source code isn't being compiled in ASCII.
* In order for data that flows over the network to make
* sense, we need to translate to/from ASCII.
*/
#define NOT_ASCII
#endif
/* affects include files on Solaris */
#define BSD_COMP
#include "apr.h"
#include "apr_signal.h"
#include "apr_strings.h"
#include "apr_network_io.h"
#include "apr_file_io.h"
#include "apr_time.h"
#include "apr_getopt.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_portable.h"
#include "ap_release.h"
#include "apr_poll.h"
#define APR_WANT_STRFUNC
#include "apr_want.h"
#include "apr_base64.h"
#ifdef NOT_ASCII
#include "apr_xlate.h"
#endif
#if APR_HAVE_STDIO_H
#include <stdio.h>
#endif
#if APR_HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if APR_HAVE_UNISTD_H
#include <unistd.h> /* for getpid() */
#endif
#if !defined(WIN32) && !defined(NETWARE)
#include "ap_config_auto.h"
#endif
#if defined(HAVE_SSLC)
/* Libraries for RSA SSL-C */
#include <rsa.h>
#include <x509.h>
#include <pem.h>
#include <err.h>
#include <ssl.h>
#include <r_rand.h>
#include <sslc.h>
#define USE_SSL
#define RSAREF
#elif defined(HAVE_OPENSSL)
/* Libraries on most systems.. */
#include <openssl/rsa.h>
#include <openssl/crypto.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <openssl/rand.h>
#define USE_SSL
#endif
#include <math.h>
#if APR_HAVE_CTYPE_H
#include <ctype.h>
#endif
/* ------------------- DEFINITIONS -------------------------- */
#ifndef LLONG_MAX
#define AB_MAX APR_INT64_C(0x7fffffffffffffff)
#else
#define AB_MAX LLONG_MAX
#endif
/* maximum number of requests on a time limited test */
#define MAX_REQUESTS 50000
/* good old state hostname */
#define STATE_UNCONNECTED 0
#define STATE_CONNECTING 1 /* TCP connect initiated, but we don't
* know if it worked yet
*/
#define STATE_CONNECTED 2 /* we know TCP connect completed */
#define STATE_READ 3
#define CBUFFSIZE (2048)
struct connection {
apr_pool_t *ctx;
apr_socket_t *aprsock;
int state;
apr_size_t read; /* amount of bytes read */
apr_size_t bread; /* amount of body read */
apr_size_t rwrite, rwrote; /* keep pointers in what we write - across
* EAGAINs */
apr_size_t length; /* Content-Length value used for keep-alive */
char cbuff[CBUFFSIZE]; /* a buffer to store server response header */
int cbx; /* offset in cbuffer */
int keepalive; /* non-zero if a keep-alive request */
int gotheader; /* non-zero if we have the entire header in
* cbuff */
apr_time_t start, /* Start of connection */
connect, /* Connected, start writing */
endwrite, /* Request written */
beginread, /* First byte of input */
done; /* Connection closed */
int socknum;
#ifdef USE_SSL
SSL *ssl;
#endif
};
struct data {
#ifdef USE_SSL
/* XXXX insert SSL timings */
#endif
int read; /* number of bytes read */
apr_time_t starttime; /* start time of connection in seconds since
* Jan. 1, 1970 */
apr_interval_time_t waittime; /* Between writing request and reading
* response */
apr_interval_time_t ctime; /* time in ms to connect */
apr_interval_time_t time; /* time in ms for connection */
};
#define ap_min(a,b) ((a)<(b))?(a):(b)
#define ap_max(a,b) ((a)>(b))?(a):(b)
#define MAX_CONCURRENCY 20000
/* --------------------- GLOBALS ---------------------------- */
int verbosity = 0; /* no verbosity by default */
int posting = 0; /* GET by default */
int requests = 1; /* Number of requests to make */
int heartbeatres = 100; /* How often do we say we're alive */
int concurrency = 1; /* Number of multiple requests to make */
int percentile = 1; /* Show percentile served */
int confidence = 1; /* Show confidence estimator and warnings */
int tlimit = 0; /* time limit in secs */
int keepalive = 0; /* try and do keepalive connections */
char servername[1024]; /* name that server reports */
char *hostname; /* host name from URL */
char *host_field; /* value of "Host:" header field */
char *path; /* path name */
char postfile[1024]; /* name of file containing post data */
char *postdata; /* *buffer containing data from postfile */
apr_size_t postlen = 0; /* length of data to be POSTed */
char content_type[1024]; /* content type to put in POST header */
char *cookie, /* optional cookie line */
*auth, /* optional (basic/uuencoded) auhentication */
*hdrs; /* optional arbitrary headers */
apr_port_t port; /* port number */
char proxyhost[1024]; /* proxy host name */
int proxyport = 0; /* proxy port */
char *connecthost;
apr_port_t connectport;
char *gnuplot; /* GNUplot file */
char *csvperc; /* CSV Percentile file */
char url[1024];
char * fullurl, * colonhost;
int isproxy = 0;
apr_interval_time_t aprtimeout = apr_time_from_sec(30); /* timeout value */
/*
* XXX - this is now a per read/write transact type of value
*/
int use_html = 0; /* use html in the report */
const char *tablestring;
const char *trstring;
const char *tdstring;
apr_size_t doclen = 0; /* the length the document should be */
long started = 0; /* number of requests started, so no excess */
long totalread = 0; /* total number of bytes read */
long totalbread = 0; /* totoal amount of entity body read */
long totalposted = 0; /* total number of bytes posted, inc. headers */
long done = 0; /* number of requests we have done */
long doneka = 0; /* number of keep alive connections done */
long good = 0, bad = 0; /* number of good and bad requests */
long epipe = 0; /* number of broken pipe writes */
#ifdef USE_SSL
int ssl = 0;
SSL_CTX *ctx;
BIO *bio_out,*bio_err;
static void write_request(struct connection * c);
#endif
/* store error cases */
int err_length = 0, err_conn = 0, err_except = 0;
int err_response = 0;
apr_time_t start, endtime;
/* global request (and its length) */
char _request[512];
char *request = _request;
apr_size_t reqlen;
/* one global throw-away buffer to read stuff into */
char buffer[8192];
/* interesting percentiles */
int percs[] = {50, 66, 75, 80, 90, 95, 98, 99, 100};
struct connection *con; /* connection array */
struct data *stats; /* date for each request */
apr_pool_t *cntxt;
apr_pollset_t *readbits;
apr_sockaddr_t *destsa;
#ifdef NOT_ASCII
apr_xlate_t *from_ascii, *to_ascii;
#endif
static void close_connection(struct connection * c);
/* --------------------------------------------------------- */
/* simple little function to write an error string and exit */
static void err(char *s)
{
fprintf(stderr, "%s\n", s);
if (done)
printf("Total of %ld requests completed\n" , done);
exit(1);
}
/* simple little function to write an APR error string and exit */
static void apr_err(char *s, apr_status_t rv)
{
char buf[120];
fprintf(stderr,
"%s: %s (%d)\n",
s, apr_strerror(rv, buf, sizeof buf), rv);
if (done)
printf("Total of %ld requests completed\n" , done);
exit(rv);
}
#if defined(USE_SSL) && USE_THREADS
/*
* To ensure thread-safetyness in OpenSSL - work in progress
*/
static apr_thread_mutex_t **lock_cs;
static int lock_num_locks;
static void ssl_util_thr_lock(int mode, int type,
const char *file, int line)
{
if (type < lock_num_locks) {
if (mode & CRYPTO_LOCK) {
apr_thread_mutex_lock(lock_cs[type]);
}
else {
apr_thread_mutex_unlock(lock_cs[type]);
}
}
}
static unsigned long ssl_util_thr_id(void)
{
/* OpenSSL needs this to return an unsigned long. On OS/390, the pthread
* id is a structure twice that big. Use the TCB pointer instead as a
* unique unsigned long.
*/
#ifdef __MVS__
struct PSA {
char unmapped[540];
unsigned long PSATOLD;
} *psaptr = 0;
return psaptr->PSATOLD;
#else
return (unsigned long) apr_os_thread_current();
#endif
}
static apr_status_t ssl_util_thread_cleanup(void *data)
{
CRYPTO_set_locking_callback(NULL);
/* Let the registered mutex cleanups do their own thing
*/
return APR_SUCCESS;
}
void ssl_util_thread_setup(apr_pool_t *p)
{
int i;
lock_num_locks = CRYPTO_num_locks();
lock_cs = apr_palloc(p, lock_num_locks * sizeof(*lock_cs));
for (i = 0; i < lock_num_locks; i++) {
apr_thread_mutex_create(&(lock_cs[i]), APR_THREAD_MUTEX_DEFAULT, p);
}
CRYPTO_set_id_callback(ssl_util_thr_id);
CRYPTO_set_locking_callback(ssl_util_thr_lock);
apr_pool_cleanup_register(p, NULL, ssl_util_thread_cleanup,
apr_pool_cleanup_null);
}
#endif
/* --------------------------------------------------------- */
/* write out request to a connection - assumes we can write
* (small) request out in one go into our new socket buffer
*
*/
#ifdef USE_SSL
static long ssl_print_cb(BIO *bio,int cmd,const char *argp,int argi,long argl,long ret)
{
BIO *out;
out=(BIO *)BIO_get_callback_arg(bio);
if (out == NULL) return(ret);
if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
{
BIO_printf(out,"read from %08X [%08lX] (%d bytes => %ld (0x%X))\n",
bio,argp,argi,ret,ret);
BIO_dump(out,(char *)argp,(int)ret);
return(ret);
}
else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
{
BIO_printf(out,"write to %08X [%08lX] (%d bytes => %ld (0x%X))\n",
bio,argp,argi,ret,ret);
BIO_dump(out,(char *)argp,(int)ret);
}
return(ret);
}
#ifndef RAND_MAX
#include <limits.h>
#define RAND_MAX INT_MAX
#endif
static int ssl_rand_choosenum(int l, int h)
{
int i;
char buf[50];
srand((unsigned int)time(NULL));
apr_snprintf(buf, sizeof(buf), "%.0f",
(((double)(rand()%RAND_MAX)/RAND_MAX)*(h-l)));
i = atoi(buf)+1;
if (i < l) i = l;
if (i > h) i = h;
return i;
}
static void ssl_rand_seed(void)
{
int nDone = 0;
int n, l;
time_t t;
pid_t pid;
unsigned char stackdata[256];
/*
* seed in the current time (usually just 4 bytes)
*/
t = time(NULL);
l = sizeof(time_t);
RAND_seed((unsigned char *)&t, l);
nDone += l;
/*
* seed in the current process id (usually just 4 bytes)
*/
pid = getpid();
l = sizeof(pid_t);
RAND_seed((unsigned char *)&pid, l);
nDone += l;
/*
* seed in some current state of the run-time stack (128 bytes)
*/
n = ssl_rand_choosenum(0, sizeof(stackdata)-128-1);
RAND_seed(stackdata+n, 128);
nDone += 128;
}
static int ssl_print_connection_info(BIO *bio, SSL *ssl)
{
SSL_CIPHER *c;
int alg_bits,bits;
c=SSL_get_current_cipher(ssl);
BIO_printf(bio,"Cipher Suite Protocol :%s\n", SSL_CIPHER_get_version(c));
BIO_printf(bio,"Cipher Suite Name :%s\n",SSL_CIPHER_get_name(c));
bits=SSL_CIPHER_get_bits(c,&alg_bits);
BIO_printf(bio,"Cipher Suite Cipher Bits:%d (%d)\n",bits,alg_bits);
return(1);
}
static int ssl_print_cert_info(BIO *bio, X509 *x509cert)
{
X509_NAME *dn;
char buf[64];
BIO_printf(bio,"Certificate version: %d\n",X509_get_version(x509cert)+1);
BIO_printf(bio,"Valid from: ");
ASN1_UTCTIME_print(bio, X509_get_notBefore(x509cert));
BIO_printf(bio,"\n");
BIO_printf(bio,"Valid to : ");
ASN1_UTCTIME_print(bio, X509_get_notAfter(x509cert));
BIO_printf(bio,"\n");
BIO_printf(bio,"Public key is %d bits\n",
EVP_PKEY_bits(X509_get_pubkey(x509cert)));
dn=X509_get_issuer_name(x509cert);
X509_NAME_oneline(dn, buf, BUFSIZ);
BIO_printf(bio,"The issuer name is %s\n", buf);
dn=X509_get_subject_name(x509cert);
X509_NAME_oneline(dn, buf, BUFSIZ);
BIO_printf(bio,"The subject name is %s\n", buf);
/* dump the extension list too */
BIO_printf(bio,"Extension Count: %d\n",X509_get_ext_count(x509cert));
return(1);
}
static void ssl_start_connect(struct connection * c)
{
BIO *bio;
X509 *x509cert;
#ifdef RSAREF
STACK *sk;
#else
STACK_OF(X509) *sk;
#endif
int i, count, hdone = 0;
char ssl_hostname[80];
/* XXX - Verify if it's okay - TBD */
if (requests < concurrency)
requests = concurrency;
if (!(started < requests))
return;
c->read = 0;
c->bread = 0;
c->keepalive = 0;
c->cbx = 0;
c->gotheader = 0;
c->rwrite = 0;
if (c->ctx)
apr_pool_destroy(c->ctx);
apr_pool_create(&c->ctx, cntxt);
if ((c->ssl=SSL_new(ctx)) == NULL)
{
BIO_printf(bio_err,"SSL_new failed\n");
exit(1);
}
ssl_rand_seed();
c->start = apr_time_now();
memset(ssl_hostname, 0, 80);
sprintf(ssl_hostname, "%s:%d", hostname, port);
if ((bio = BIO_new_connect(ssl_hostname)) == NULL)
{
BIO_printf(bio_err,"BIO_new_connect failed\n");
exit(1);
}
SSL_set_bio(c->ssl,bio,bio);
SSL_set_connect_state(c->ssl);
if (verbosity >= 4)
{
BIO_set_callback(bio,ssl_print_cb);
BIO_set_callback_arg(bio,(void*)bio_err);
}
while (!hdone)
{
i = SSL_do_handshake(c->ssl);
switch (SSL_get_error(c->ssl,i))
{
case SSL_ERROR_NONE:
hdone=1;
break;
case SSL_ERROR_SSL:
case SSL_ERROR_SYSCALL:
BIO_printf(bio_err,"SSL connection failed\n");
err_conn++;
c->state = STATE_UNCONNECTED;
if (bad++ > 10) {
SSL_free (c->ssl);
BIO_printf(bio_err,"\nTest aborted after 10 failures\n\n");
exit (1);
}
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_CONNECT:
BIO_printf(bio_err, "Waiting .. sleep(1)\n");
apr_sleep(apr_time_from_sec(1));
c->state = STATE_CONNECTED;
c->rwrite = 0;
break;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_err,"socket closed\n");
break;
}
}
if (verbosity >= 2)
{
BIO_printf(bio_err, "\n");
sk = SSL_get_peer_cert_chain(c->ssl);
#ifdef RSAREF
if ((count = sk_num(sk)) > 0)
#else
if ((count = sk_X509_num(sk)) > 0)
#endif
{
for (i=1; i<count; i++)
{
#ifdef RSAREF
x509cert = (X509 *)sk_value(sk,i);
#else
x509cert = (X509 *)sk_X509_value(sk,i);
#endif
ssl_print_cert_info(bio_out,x509cert);
X509_free(x509cert);
}
}
x509cert = SSL_get_peer_certificate(c->ssl);
if (x509cert == NULL)
BIO_printf(bio_out, "Anon DH\n");
else
{
BIO_printf(bio_out, "Peer certificate\n");
ssl_print_cert_info(bio_out,x509cert);
X509_free(x509cert);
}
ssl_print_connection_info(bio_err,c->ssl);
SSL_SESSION_print(bio_err,SSL_get_session(c->ssl));
}
/* connected first time */
started++;
write_request(c);
}
#endif /* USE_SSL */
static void write_request(struct connection * c)
{
do {
apr_time_t tnow = apr_time_now();
apr_size_t l = c->rwrite;
apr_status_t e = APR_SUCCESS; /* prevent gcc warning */
/*
* First time round ?
*/
if (c->rwrite == 0) {
#ifdef USE_SSL
if (ssl != 1)
#endif
apr_socket_timeout_set(c->aprsock, 0);
c->connect = tnow;
c->rwrite = reqlen;
c->rwrote = 0;
if (posting)
c->rwrite += postlen;
}
else if (tnow > c->connect + aprtimeout) {
printf("Send request timed out!\n");
close_connection(c);
return;
}
#ifdef USE_SSL
if (ssl == 1) {
apr_size_t e_ssl;
e_ssl = SSL_write(c->ssl,request + c->rwrote, l);
if (e_ssl != l)
{
printf("SSL write failed - closing connection\n");
close_connection (c);
return;
}
l = e_ssl;
}
else
#endif
e = apr_socket_send(c->aprsock, request + c->rwrote, &l);
/*
* Bail early on the most common case
*/
if (l == c->rwrite)
break;
#ifdef USE_SSL
if (ssl != 1)
#endif
if (e != APR_SUCCESS) {
/*
* Let's hope this traps EWOULDBLOCK too !
*/
if (!APR_STATUS_IS_EAGAIN(e)) {
epipe++;
printf("Send request failed!\n");
close_connection(c);
}
return;
}
c->rwrote += l;
c->rwrite -= l;
} while (1);
totalposted += c->rwrite;
c->state = STATE_READ;
c->endwrite = apr_time_now();
#ifdef USE_SSL
if (ssl != 1)
#endif
{
apr_pollfd_t new_pollfd;
new_pollfd.desc_type = APR_POLL_SOCKET;
new_pollfd.reqevents = APR_POLLIN;
new_pollfd.desc.s = c->aprsock;
new_pollfd.client_data = c;
apr_pollset_add(readbits, &new_pollfd);
}
}
/* --------------------------------------------------------- */
/* calculate and output results */
static int compradre(struct data * a, struct data * b)
{
if ((a->ctime) < (b->ctime))
return -1;
if ((a->ctime) > (b->ctime))
return +1;
return 0;
}
static int comprando(struct data * a, struct data * b)
{
if ((a->time) < (b->time))
return -1;
if ((a->time) > (b->time))
return +1;
return 0;
}
static int compri(struct data * a, struct data * b)
{
apr_interval_time_t p = a->time - a->ctime;
apr_interval_time_t q = b->time - b->ctime;
if (p < q)
return -1;
if (p > q)
return +1;
return 0;
}
static int compwait(struct data * a, struct data * b)
{
if ((a->waittime) < (b->waittime))
return -1;
if ((a->waittime) > (b->waittime))
return 1;
return 0;
}
static void output_results(void)
{
apr_interval_time_t timetakenusec;
float timetaken;
endtime = apr_time_now();
timetakenusec = endtime - start;
timetaken = ((float)apr_time_sec(timetakenusec)) +
((float)apr_time_usec(timetakenusec)) / 1000000.0F;
printf("\n\n");
printf("Server Software: %s\n", servername);
printf("Server Hostname: %s\n", hostname);
printf("Server Port: %hd\n", port);
printf("\n");
printf("Document Path: %s\n", path);
printf("Document Length: %" APR_SIZE_T_FMT " bytes\n", doclen);
printf("\n");
printf("Concurrency Level: %d\n", concurrency);
printf("Time taken for tests: %ld.%03ld seconds\n",
(long) apr_time_sec(timetakenusec),
(long) apr_time_usec(timetakenusec));
printf("Complete requests: %ld\n", done);
printf("Failed requests: %ld\n", bad);
if (bad)
printf(" (Connect: %d, Length: %d, Exceptions: %d)\n",
err_conn, err_length, err_except);
printf("Write errors: %ld\n", epipe);
if (err_response)
printf("Non-2xx responses: %d\n", err_response);
if (keepalive)
printf("Keep-Alive requests: %ld\n", doneka);
printf("Total transferred: %ld bytes\n", totalread);
if (posting > 0)
printf("Total POSTed: %ld\n", totalposted);
printf("HTML transferred: %ld bytes\n", totalbread);
/* avoid divide by zero */
if (timetaken) {
printf("Requests per second: %.2f [#/sec] (mean)\n",
(float) (done / timetaken));
printf("Time per request: %.3f [ms] (mean)\n",
(float) (1000 * concurrency * timetaken / done));
printf("Time per request: %.3f [ms] (mean, across all concurrent requests)\n",
(float) (1000 * timetaken / done));
printf("Transfer rate: %.2f [Kbytes/sec] received\n",
(float) (totalread / 1024 / timetaken));
if (posting > 0) {
printf(" %.2f kb/s sent\n",
(float) (totalposted / timetaken / 1024));
printf(" %.2f kb/s total\n",
(float) ((totalread + totalposted) / timetaken / 1024));
}
}
if (requests) {
/* work out connection times */
long i;
apr_time_t totalcon = 0, total = 0, totald = 0, totalwait = 0;
apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX, mind = AB_MAX,
minwait = AB_MAX;
apr_interval_time_t maxcon = 0, maxtot = 0, maxd = 0, maxwait = 0;
apr_interval_time_t meancon = 0, meantot = 0, meand = 0, meanwait = 0;
double sdtot = 0, sdcon = 0, sdd = 0, sdwait = 0;
for (i = 0; i < requests; i++) {
struct data s = stats[i];
mincon = ap_min(mincon, s.ctime);
mintot = ap_min(mintot, s.time);
mind = ap_min(mind, s.time - s.ctime);
minwait = ap_min(minwait, s.waittime);
maxcon = ap_max(maxcon, s.ctime);
maxtot = ap_max(maxtot, s.time);
maxd = ap_max(maxd, s.time - s.ctime);
maxwait = ap_max(maxwait, s.waittime);
totalcon += s.ctime;
total += s.time;
totald += s.time - s.ctime;
totalwait += s.waittime;
}
totalcon /= requests;
total /= requests;
totald /= requests;
totalwait /= requests;
for (i = 0; i < requests; i++) {
struct data s = stats[i];
double a;
a = ((double)s.time - total);
sdtot += a * a;
a = ((double)s.ctime - totalcon);
sdcon += a * a;
a = ((double)s.time - (double)s.ctime - totald);
sdd += a * a;
a = ((double)s.waittime - totalwait);
sdwait += a * a;
}
sdtot = (requests > 1) ? sqrt(sdtot / (requests - 1)) : 0;
sdcon = (requests > 1) ? sqrt(sdcon / (requests - 1)) : 0;
sdd = (requests > 1) ? sqrt(sdd / (requests - 1)) : 0;
sdwait = (requests > 1) ? sqrt(sdwait / (requests - 1)) : 0;
if (gnuplot) {
FILE *out = fopen(gnuplot, "w");
long i;
apr_time_t sttime;
char tmstring[1024];/* XXXX */
if (!out) {
perror("Cannot open gnuplot output file");
exit(1);
}
fprintf(out, "starttime\tseconds\tctime\tdtime\tttime\twait\n");
for (i = 0; i < requests; i++) {
apr_time_t diff = stats[i].time - stats[i].ctime;
sttime = stats[i].starttime;
(void) apr_ctime(tmstring, sttime);
fprintf(out, "%s\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT "\n",
tmstring,
sttime,
stats[i].ctime,
diff,
stats[i].time,
stats[i].waittime);
}
fclose(out);
}
/*
* XXX: what is better; this hideous cast of the compradre function; or
* the four warnings during compile ? dirkx just does not know and
* hates both/
*/
qsort(stats, requests, sizeof(struct data),
(int (*) (const void *, const void *)) compradre);
if ((requests > 1) && (requests % 2))
meancon = (stats[requests / 2].ctime + stats[requests / 2 + 1].ctime) / 2;
else
meancon = stats[requests / 2].ctime;
qsort(stats, requests, sizeof(struct data),
(int (*) (const void *, const void *)) compri);
if ((requests > 1) && (requests % 2))
meand = (stats[requests / 2].time + stats[requests / 2 + 1].time \
-stats[requests / 2].ctime - stats[requests / 2 + 1].ctime) / 2;
else
meand = stats[requests / 2].time - stats[requests / 2].ctime;
qsort(stats, requests, sizeof(struct data),
(int (*) (const void *, const void *)) compwait);
if ((requests > 1) && (requests % 2))
meanwait = (stats[requests / 2].waittime + stats[requests / 2 + 1].waittime) / 2;
else
meanwait = stats[requests / 2].waittime;
qsort(stats, requests, sizeof(struct data),
(int (*) (const void *, const void *)) comprando);
if ((requests > 1) && (requests % 2))
meantot = (stats[requests / 2].time + stats[requests / 2 + 1].time) / 2;
else
meantot = stats[requests / 2].time;
printf("\nConnection Times (ms)\n");
if (confidence) {
#define CONF_FMT_STRING "%5" APR_TIME_T_FMT " %4d %5.1f %6" APR_TIME_T_FMT " %7" APR_TIME_T_FMT "\n"
printf(" min mean[+/-sd] median max\n");
printf("Connect: " CONF_FMT_STRING,
mincon, (int) (totalcon + 0.5), sdcon, meancon, maxcon);
printf("Processing: " CONF_FMT_STRING,
mind, (int) (totald + 0.5), sdd, meand, maxd);
printf("Waiting: " CONF_FMT_STRING,
minwait, (int) (totalwait + 0.5), sdwait, meanwait, maxwait);
printf("Total: " CONF_FMT_STRING,
mintot, (int) (total + 0.5), sdtot, meantot, maxtot);
#undef CONF_FMT_STRING
#define SANE(what,avg,mean,sd) \
{ \
double d = (double)avg - mean; \
if (d < 0) d = -d; \
if (d > 2 * sd ) \
printf("ERROR: The median and mean for " what " are more than twice the standard\n" \
" deviation apart. These results are NOT reliable.\n"); \
else if (d > sd ) \
printf("WARNING: The median and mean for " what " are not within a normal deviation\n" \
" These results are probably not that reliable.\n"); \
}
SANE("the initial connection time", totalcon, meancon, sdcon);
SANE("the processing time", totald, meand, sdd);
SANE("the waiting time", totalwait, meanwait, sdwait);
SANE("the total time", total, meantot, sdtot);
}
else {
printf(" min avg max\n");
#define CONF_FMT_STRING "%5" APR_TIME_T_FMT " %5" APR_TIME_T_FMT "%5" APR_TIME_T_FMT "\n"
printf("Connect: " CONF_FMT_STRING,
mincon, totalcon / requests, maxcon);
printf("Processing: " CONF_FMT_STRING, mintot - mincon,
(total / requests) - (totalcon / requests),
maxtot - maxcon);
printf("Total: " CONF_FMT_STRING,
mintot, total / requests, maxtot);
#undef CONF_FMT_STRING
}
/* Sorted on total connect times */
if (percentile && (requests > 1)) {
printf("\nPercentage of the requests served within a certain time (ms)\n");
for (i = 0; i < sizeof(percs) / sizeof(int); i++)
if (percs[i] <= 0)
printf(" 0%% <0> (never)\n");
else if (percs[i] >= 100)
printf(" 100%% %5" APR_TIME_T_FMT " (longest request)\n",
stats[requests - 1].time);
else
printf(" %d%% %5" APR_TIME_T_FMT "\n", percs[i],
stats[(int) (requests * percs[i] / 100)].time);
}
if (csvperc) {
FILE *out = fopen(csvperc, "w");
int i;
if (!out) {
perror("Cannot open CSV output file");
exit(1);
}
fprintf(out, "" "Percentage served" "," "Time in ms" "\n");
for (i = 0; i < 100; i++) {
apr_time_t t;
if (i == 0)
t = stats[0].time;
else if (i == 100)
t = stats[requests - 1].time;
else
t = stats[(int) (0.5 + requests * i / 100.0)].time;
fprintf(out, "%d,%e\n", i, (double)t);
}
fclose(out);
}
}
}
/* --------------------------------------------------------- */
/* calculate and output results in HTML */
static void output_html_results(void)
{
long timetaken;
endtime = apr_time_now();
timetaken = (long)((endtime - start) / 1000);
printf("\n\n<table %s>\n", tablestring);
printf("<tr %s><th colspan=2 %s>Server Software:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, servername);
printf("<tr %s><th colspan=2 %s>Server Hostname:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, hostname);
printf("<tr %s><th colspan=2 %s>Server Port:</th>"
"<td colspan=2 %s>%hd</td></tr>\n",
trstring, tdstring, tdstring, port);
printf("<tr %s><th colspan=2 %s>Document Path:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, path);
printf("<tr %s><th colspan=2 %s>Document Length:</th>"
"<td colspan=2 %s>%" APR_SIZE_T_FMT " bytes</td></tr>\n",
trstring, tdstring, tdstring, doclen);
printf("<tr %s><th colspan=2 %s>Concurrency Level:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, concurrency);
printf("<tr %s><th colspan=2 %s>Time taken for tests:</th>"
"<td colspan=2 %s>%" APR_INT64_T_FMT ".%03ld seconds</td></tr>\n",
trstring, tdstring, tdstring, apr_time_sec(timetaken),
(long)apr_time_usec(timetaken));
printf("<tr %s><th colspan=2 %s>Complete requests:</th>"
"<td colspan=2 %s>%ld</td></tr>\n",
trstring, tdstring, tdstring, done);
printf("<tr %s><th colspan=2 %s>Failed requests:</th>"
"<td colspan=2 %s>%ld</td></tr>\n",
trstring, tdstring, tdstring, bad);
if (bad)
printf("<tr %s><td colspan=4 %s > (Connect: %d, Length: %d, Exceptions: %d)</td></tr>\n",
trstring, tdstring, err_conn, err_length, err_except);
if (err_response)
printf("<tr %s><th colspan=2 %s>Non-2xx responses:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, err_response);
if (keepalive)
printf("<tr %s><th colspan=2 %s>Keep-Alive requests:</th>"
"<td colspan=2 %s>%ld</td></tr>\n",
trstring, tdstring, tdstring, doneka);
printf("<tr %s><th colspan=2 %s>Total transferred:</th>"
"<td colspan=2 %s>%ld bytes</td></tr>\n",
trstring, tdstring, tdstring, totalread);
if (posting > 0)
printf("<tr %s><th colspan=2 %s>Total POSTed:</th>"
"<td colspan=2 %s>%ld</td></tr>\n",
trstring, tdstring, tdstring, totalposted);
printf("<tr %s><th colspan=2 %s>HTML transferred:</th>"
"<td colspan=2 %s>%ld bytes</td></tr>\n",
trstring, tdstring, tdstring, totalbread);
/* avoid divide by zero */
if (timetaken) {
printf("<tr %s><th colspan=2 %s>Requests per second:</th>"
"<td colspan=2 %s>%.2f</td></tr>\n",
trstring, tdstring, tdstring, 1000 * (float) (done) / timetaken);
printf("<tr %s><th colspan=2 %s>Transfer rate:</th>"
"<td colspan=2 %s>%.2f kb/s received</td></tr>\n",
trstring, tdstring, tdstring, (float) (totalread) / timetaken);
if (posting > 0) {
printf("<tr %s><td colspan=2 %s>&nbsp;</td>"
"<td colspan=2 %s>%.2f kb/s sent</td></tr>\n",
trstring, tdstring, tdstring,
(float) (totalposted) / timetaken);
printf("<tr %s><td colspan=2 %s>&nbsp;</td>"
"<td colspan=2 %s>%.2f kb/s total</td></tr>\n",
trstring, tdstring, tdstring,
(float) (totalread + totalposted) / timetaken);
}
} {
/* work out connection times */
long i;
apr_interval_time_t totalcon = 0, total = 0;
apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX;
apr_interval_time_t maxcon = 0, maxtot = 0;
for (i = 0; i < requests; i++) {
struct data s = stats[i];
mincon = ap_min(mincon, s.ctime);
mintot = ap_min(mintot, s.time);
maxcon = ap_max(maxcon, s.ctime);
maxtot = ap_max(maxtot, s.time);
totalcon += s.ctime;
total += s.time;
}
if (requests > 0) { /* avoid division by zero (if 0 requests) */
printf("<tr %s><th %s colspan=4>Connnection Times (ms)</th></tr>\n",
trstring, tdstring);
printf("<tr %s><th %s>&nbsp;</th> <th %s>min</th> <th %s>avg</th> <th %s>max</th></tr>\n",
trstring, tdstring, tdstring, tdstring, tdstring);
printf("<tr %s><th %s>Connect:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mincon, tdstring, totalcon / requests, tdstring, maxcon);
printf("<tr %s><th %s>Processing:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mintot - mincon, tdstring,
(total / requests) - (totalcon / requests), tdstring, maxtot - maxcon);
printf("<tr %s><th %s>Total:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mintot, tdstring, total / requests, tdstring, maxtot);
}
printf("</table>\n");
}
}
/* --------------------------------------------------------- */
/* start asnchronous non-blocking connection */
static void start_connect(struct connection * c)
{
apr_status_t rv;
#ifdef USE_SSL
if (ssl == 1) {
ssl_start_connect(c);
return;
}
#endif
if (!(started < requests))
return;
c->read = 0;
c->bread = 0;
c->keepalive = 0;
c->cbx = 0;
c->gotheader = 0;
c->rwrite = 0;
if (c->ctx)
apr_pool_destroy(c->ctx);
apr_pool_create(&c->ctx, cntxt);
if ((rv = apr_socket_create(&c->aprsock, destsa->family,
SOCK_STREAM, 0, c->ctx)) != APR_SUCCESS) {
apr_err("socket", rv);
}
if ((rv = apr_socket_opt_set(c->aprsock, APR_SO_NONBLOCK, 1))
!= APR_SUCCESS) {
apr_err("socket nonblock", rv);
}
c->start = apr_time_now();
if ((rv = apr_socket_connect(c->aprsock, destsa)) != APR_SUCCESS) {
if (APR_STATUS_IS_EINPROGRESS(rv)) {
apr_pollfd_t new_pollfd;
c->state = STATE_CONNECTING;
c->rwrite = 0;
new_pollfd.desc_type = APR_POLL_SOCKET;
new_pollfd.reqevents = APR_POLLOUT;
new_pollfd.desc.s = c->aprsock;
new_pollfd.client_data = c;
apr_pollset_add(readbits, &new_pollfd);
return;
}
else {
apr_pollfd_t remove_pollfd;
remove_pollfd.desc_type = APR_POLL_SOCKET;
remove_pollfd.desc.s = c->aprsock;
apr_pollset_remove(readbits, &remove_pollfd);
apr_socket_close(c->aprsock);
err_conn++;
if (bad++ > 10) {
fprintf(stderr,
"\nTest aborted after 10 failures\n\n");
apr_err("apr_socket_connect()", rv);
}
c->state = STATE_UNCONNECTED;
start_connect(c);
return;
}
}
/* connected first time */
c->state = STATE_CONNECTED;
started++;
write_request(c);
}
/* --------------------------------------------------------- */
/* close down connection and save stats */
static void close_connection(struct connection * c)
{
if (c->read == 0 && c->keepalive) {
/*
* server has legitimately shut down an idle keep alive request
*/
if (good)
good--; /* connection never happened */
}
else {
if (good == 1) {
/* first time here */
doclen = c->bread;
}
else if (c->bread != doclen) {
bad++;
err_length++;
}
/* save out time */
if (done < requests) {
struct data s;
if ((done) && heartbeatres && !(done % heartbeatres)) {
fprintf(stderr, "Completed %ld requests\n", done);
fflush(stderr);
}
c->done = apr_time_now();
s.read = c->read;
s.starttime = c->start;
s.ctime = ap_max(0, (c->connect - c->start) / 1000);
s.time = ap_max(0, (c->done - c->start) / 1000);
s.waittime = ap_max(0, (c->beginread - c->endwrite) / 1000);
stats[done++] = s;
}
}
#ifdef USE_SSL
if (ssl == 1) {
SSL_shutdown(c->ssl);
SSL_free(c->ssl);
}
else
#endif
{
apr_pollfd_t remove_pollfd;
remove_pollfd.desc_type = APR_POLL_SOCKET;
remove_pollfd.desc.s = c->aprsock;
apr_pollset_remove(readbits, &remove_pollfd);
apr_socket_close(c->aprsock);
}
c->state = STATE_UNCONNECTED;
/* connect again */
start_connect(c);
return;
}
/* --------------------------------------------------------- */
/* read data from connection */
static void read_connection(struct connection * c)
{
apr_size_t r;
apr_status_t status;
char *part;
char respcode[4]; /* 3 digits and null */
r = sizeof(buffer);
#ifdef USE_SSL
if (ssl == 1)
{
status = SSL_read (c->ssl, buffer, r);
if (status <= 0) {
good++; c->read = 0;
if (status < 0) printf("SSL read failed - closing connection\n");
close_connection(c);
return;
}
r = status;
}
else {
#endif
status = apr_socket_recv(c->aprsock, buffer, &r);
if (APR_STATUS_IS_EAGAIN(status))
return;
else if (r == 0 && APR_STATUS_IS_EOF(status)) {
good++;
close_connection(c);
return;
}
/* catch legitimate fatal apr_socket_recv errors */
else if (status != APR_SUCCESS) {
err_except++; /* XXX: is this the right error counter? */
/* XXX: Should errors here be fatal, or should we allow a
* certain number of them before completely failing? -aaron */
apr_err("apr_socket_recv", status);
}
#ifdef USE_SSL
}
#endif
totalread += r;
if (c->read == 0) {
c->beginread = apr_time_now();
}
c->read += r;
if (!c->gotheader) {
char *s;
int l = 4;
apr_size_t space = CBUFFSIZE - c->cbx - 1; /* -1 allows for \0 term */
int tocopy = (space < r) ? space : r;
#ifdef NOT_ASCII
apr_size_t inbytes_left = space, outbytes_left = space;
status = apr_xlate_conv_buffer(from_ascii, buffer, &inbytes_left,
c->cbuff + c->cbx, &outbytes_left);
if (status || inbytes_left || outbytes_left) {
fprintf(stderr, "only simple translation is supported (%d/%u/%u)\n",
status, inbytes_left, outbytes_left);
exit(1);
}
#else
memcpy(c->cbuff + c->cbx, buffer, space);
#endif /* NOT_ASCII */
c->cbx += tocopy;
space -= tocopy;
c->cbuff[c->cbx] = 0; /* terminate for benefit of strstr */
if (verbosity >= 2) {
printf("LOG: header received:\n%s\n", c->cbuff);
}
s = strstr(c->cbuff, "\r\n\r\n");
/*
* this next line is so that we talk to NCSA 1.5 which blatantly
* breaks the http specifaction
*/
if (!s) {
s = strstr(c->cbuff, "\n\n");
l = 2;
}
if (!s) {
/* read rest next time */
if (space) {
return;
}
else {
/* header is in invalid or too big - close connection */
apr_pollfd_t remove_pollfd;
remove_pollfd.desc_type = APR_POLL_SOCKET;
remove_pollfd.desc.s = c->aprsock;
apr_pollset_remove(readbits, &remove_pollfd);
apr_socket_close(c->aprsock);
err_response++;
if (bad++ > 10) {
err("\nTest aborted after 10 failures\n\n");
}
start_connect(c);
}
}
else {
/* have full header */
if (!good) {
/*
* this is first time, extract some interesting info
*/
char *p, *q;
p = strstr(c->cbuff, "Server:");
q = servername;
if (p) {
p += 8;
while (*p > 32)
*q++ = *p++;
}
*q = 0;
}
/*
* XXX: this parsing isn't even remotely HTTP compliant... but in
* the interest of speed it doesn't totally have to be, it just
* needs to be extended to handle whatever servers folks want to
* test against. -djg
*/
/* check response code */
part = strstr(c->cbuff, "HTTP"); /* really HTTP/1.x_ */
if (part && strlen(part) > strlen("HTTP/1.x_")) {
strncpy(respcode, (part + strlen("HTTP/1.x_")), 3);
respcode[3] = '\0';
}
else {
strcpy(respcode, "500");
}
if (respcode[0] != '2') {
err_response++;
if (verbosity >= 2)
printf("WARNING: Response code not 2xx (%s)\n", respcode);
}
else if (verbosity >= 3) {
printf("LOG: Response code = %s\n", respcode);
}
c->gotheader = 1;
*s = 0; /* terminate at end of header */
if (keepalive &&
(strstr(c->cbuff, "Keep-Alive")
|| strstr(c->cbuff, "keep-alive"))) { /* for benefit of MSIIS */
char *cl;
cl = strstr(c->cbuff, "Content-Length:");
/* handle NCSA, which sends Content-length: */
if (!cl)
cl = strstr(c->cbuff, "Content-length:");
if (cl) {
c->keepalive = 1;
c->length = atoi(cl + 16);
}
}
c->bread += c->cbx - (s + l - c->cbuff) + r - tocopy;
totalbread += c->bread;
}
}
else {
/* outside header, everything we have read is entity body */
c->bread += r;
totalbread += r;
}
if (c->keepalive && (c->bread >= c->length)) {
/* finished a keep-alive connection */
good++;
doneka++;
/* save out time */
if (good == 1) {
/* first time here */
doclen = c->bread;
}
else if (c->bread != doclen) {
bad++;
err_length++;
}
if (done < requests) {
struct data s;
if (done && heartbeatres && !(done % heartbeatres)) {
fprintf(stderr, "Completed %ld requests\n", done);
fflush(stderr);
}
c->done = apr_time_now();
s.read = c->read;
s.starttime = c->start;
s.ctime = ap_max(0, (c->connect - c->start) / 1000);
s.waittime = ap_max(0, (c->beginread - c->endwrite) / 1000);
s.time = ap_max(0, (c->done - c->start) / 1000);
stats[done++] = s;
}
c->keepalive = 0;
c->length = 0;
c->gotheader = 0;
c->cbx = 0;
c->read = c->bread = 0;
write_request(c);
c->start = c->connect; /* zero connect time with keep-alive */
}
}
/* --------------------------------------------------------- */
/* run the tests */
static void test(void)
{
apr_time_t now;
apr_int16_t rv;
long i;
apr_status_t status;
#ifdef NOT_ASCII
apr_size_t inbytes_left, outbytes_left;
#endif
if (isproxy) {
connecthost = apr_pstrdup(cntxt, proxyhost);
connectport = proxyport;
}
else {
connecthost = apr_pstrdup(cntxt, hostname);
connectport = port;
}
if (!use_html) {
printf("Benchmarking %s ", hostname);
if (isproxy)
printf("[through %s:%d] ", proxyhost, proxyport);
printf("(be patient)%s",
(heartbeatres ? "\n" : "..."));
fflush(stdout);
}
now = apr_time_now();
con = calloc(concurrency * sizeof(struct connection), 1);
stats = calloc(requests * sizeof(struct data), 1);
if ((status = apr_pollset_create(&readbits, concurrency, cntxt, 0)) != APR_SUCCESS) {
apr_err("apr_pollset_create failed", status);
}
/* setup request */
if (posting <= 0) {
sprintf(request, "%s %s HTTP/1.0\r\n"
"User-Agent: ApacheBench/%s\r\n"
"%s" "%s" "%s"
"Host: %s%s\r\n"
"Accept: */*\r\n"
"%s" "\r\n",
(posting == 0) ? "GET" : "HEAD",
(isproxy) ? fullurl : path,
AP_AB_BASEREVISION,
keepalive ? "Connection: Keep-Alive\r\n" : "",
cookie, auth, host_field, colonhost, hdrs);
}
else {
sprintf(request, "POST %s HTTP/1.0\r\n"
"User-Agent: ApacheBench/%s\r\n"
"%s" "%s" "%s"
"Host: %s%s\r\n"
"Accept: */*\r\n"
"Content-length: %" APR_SIZE_T_FMT "\r\n"
"Content-type: %s\r\n"
"%s"
"\r\n",
(isproxy) ? fullurl : path,
AP_AB_BASEREVISION,
keepalive ? "Connection: Keep-Alive\r\n" : "",
cookie, auth,
host_field, colonhost, postlen,
(content_type[0]) ? content_type : "text/plain", hdrs);
}
if (verbosity >= 2)
printf("INFO: POST header == \n---\n%s\n---\n", request);
reqlen = strlen(request);
/*
* Combine headers and (optional) post file into one contineous buffer
*/
if (posting == 1) {
char *buff = malloc(postlen + reqlen + 1);
if (!buff) {
fprintf(stderr, "error creating request buffer: out of memory\n");
return;
}
strcpy(buff, request);
strcpy(buff + reqlen, postdata);
request = buff;
}
#ifdef NOT_ASCII
inbytes_left = outbytes_left = reqlen;
status = apr_xlate_conv_buffer(to_ascii, request, &inbytes_left,
request, &outbytes_left);
if (status || inbytes_left || outbytes_left) {
fprintf(stderr, "only simple translation is supported (%d/%u/%u)\n",
status, inbytes_left, outbytes_left);
exit(1);
}
#endif /* NOT_ASCII */
/* This only needs to be done once */
#ifdef USE_SSL
if (ssl != 1)
#endif
if ((rv = apr_sockaddr_info_get(&destsa, connecthost, APR_UNSPEC, connectport, 0, cntxt))
!= APR_SUCCESS) {
char buf[120];
apr_snprintf(buf, sizeof(buf),
"apr_sockaddr_info_get() for %s", connecthost);
apr_err(buf, rv);
}
/* ok - lets start */
start = apr_time_now();
/* initialise lots of requests */
for (i = 0; i < concurrency; i++) {
con[i].socknum = i;
start_connect(&con[i]);
}
while (done < requests) {
apr_int32_t n;
apr_int32_t timed;
const apr_pollfd_t *pollresults;
/* check for time limit expiry */
now = apr_time_now();
timed = (apr_int32_t)apr_time_sec(now - start);
if (tlimit && timed >= tlimit) {
requests = done; /* so stats are correct */
break; /* no need to do another round */
}
n = concurrency;
#ifdef USE_SSL
if (ssl == 1)
status = APR_SUCCESS;
else
#endif
status = apr_pollset_poll(readbits, aprtimeout, &n, &pollresults);
if (status != APR_SUCCESS)
apr_err("apr_poll", status);
if (!n) {
err("\nServer timed out\n\n");
}
for (i = 0; i < n; i++) {
const apr_pollfd_t *next_fd = &(pollresults[i]);
struct connection *c;
#ifdef USE_SSL
if (ssl)
c = &con[i];
else
#endif
c = next_fd->client_data;
/*
* If the connection isn't connected how can we check it?
*/
if (c->state == STATE_UNCONNECTED)
continue;
#ifdef USE_SSL
if (ssl == 1)
rv = APR_POLLIN;
else
#endif
rv = next_fd->rtnevents;
/*
* Notes: APR_POLLHUP is set after FIN is received on some
* systems, so treat that like APR_POLLIN so that we try to read
* again.
*
* Some systems return APR_POLLERR with APR_POLLHUP. We need to
* call read_connection() for APR_POLLHUP, so check for
* APR_POLLHUP first so that a closed connection isn't treated
* like an I/O error. If it is, we never figure out that the
* connection is done and we loop here endlessly calling
* apr_poll().
*/
if ((rv & APR_POLLIN) || (rv & APR_POLLPRI) || (rv & APR_POLLHUP))
read_connection(c);
if ((rv & APR_POLLERR) || (rv & APR_POLLNVAL)) {
bad++;
err_except++;
start_connect(c);
continue;
}
if (rv & APR_POLLOUT) {
if (c->state == STATE_CONNECTING) {
apr_pollfd_t remove_pollfd;
rv = apr_socket_connect(c->aprsock, destsa);
remove_pollfd.desc_type = APR_POLL_SOCKET;
remove_pollfd.desc.s = c->aprsock;
apr_pollset_remove(readbits, &remove_pollfd);
if (rv != APR_SUCCESS) {
apr_socket_close(c->aprsock);
err_conn++;
if (bad++ > 10) {
fprintf(stderr,
"\nTest aborted after 10 failures\n\n");
apr_err("apr_socket_connect()", rv);
}
c->state = STATE_UNCONNECTED;
start_connect(c);
continue;
}
else {
c->state = STATE_CONNECTED;
write_request(c);
}
}
else {
write_request(c);
}
}
/*
* When using a select based poll every time we check the bits
* are reset. In 1.3's ab we copied the FD_SET's each time
* through, but here we're going to check the state and if the
* connection is in STATE_READ or STATE_CONNECTING we'll add the
* socket back in as APR_POLLIN.
*/
#ifdef USE_SSL
if (ssl != 1)
#endif
if (c->state == STATE_READ) {
apr_pollfd_t new_pollfd;
new_pollfd.desc_type = APR_POLL_SOCKET;
new_pollfd.reqevents = APR_POLLIN;
new_pollfd.desc.s = c->aprsock;
new_pollfd.client_data = c;
apr_pollset_add(readbits, &new_pollfd);
}
}
}
if (heartbeatres)
fprintf(stderr, "Finished %ld requests\n", done);
else
printf("..done\n");
if (use_html)
output_html_results();
else
output_results();
}
/* ------------------------------------------------------- */
/* display copyright information */
static void copyright(void)
{
if (!use_html) {
printf("This is ApacheBench, Version %s\n", AP_AB_BASEREVISION " <$Revision: 1.142 $> apache-2.0");
printf("Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/\n");
printf("Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/\n");
printf("\n");
}
else {
printf("<p>\n");
printf(" This is ApacheBench, Version %s <i>&lt;%s&gt;</i> apache-2.0<br>\n", AP_AB_BASEREVISION, "$Revision: 1.142 $");
printf(" Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/<br>\n");
printf(" Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/<br>\n");
printf("</p>\n<p>\n");
}
}
/* display usage information */
static void usage(const char *progname)
{
fprintf(stderr, "Usage: %s [options] [http"
#ifdef USE_SSL
"[s]"
#endif
"://]hostname[:port]/path\n", progname);
fprintf(stderr, "Options are:\n");
fprintf(stderr, " -n requests Number of requests to perform\n");
fprintf(stderr, " -c concurrency Number of multiple requests to make\n");
fprintf(stderr, " -t timelimit Seconds to max. wait for responses\n");
fprintf(stderr, " -p postfile File containing data to POST\n");
fprintf(stderr, " -T content-type Content-type header for POSTing\n");
fprintf(stderr, " -v verbosity How much troubleshooting info to print\n");
fprintf(stderr, " -w Print out results in HTML tables\n");
fprintf(stderr, " -i Use HEAD instead of GET\n");
fprintf(stderr, " -x attributes String to insert as table attributes\n");
fprintf(stderr, " -y attributes String to insert as tr attributes\n");
fprintf(stderr, " -z attributes String to insert as td or th attributes\n");
fprintf(stderr, " -C attribute Add cookie, eg. 'Apache=1234. (repeatable)\n");
fprintf(stderr, " -H attribute Add Arbitrary header line, eg. 'Accept-Encoding: gzip'\n");
fprintf(stderr, " Inserted after all normal header lines. (repeatable)\n");
fprintf(stderr, " -A attribute Add Basic WWW Authentication, the attributes\n");
fprintf(stderr, " are a colon separated username and password.\n");
fprintf(stderr, " -P attribute Add Basic Proxy Authentication, the attributes\n");
fprintf(stderr, " are a colon separated username and password.\n");
fprintf(stderr, " -X proxy:port Proxyserver and port number to use\n");
fprintf(stderr, " -V Print version number and exit\n");
fprintf(stderr, " -k Use HTTP KeepAlive feature\n");
fprintf(stderr, " -d Do not show percentiles served table.\n");
fprintf(stderr, " -S Do not show confidence estimators and warnings.\n");
fprintf(stderr, " -g filename Output collected data to gnuplot format file.\n");
fprintf(stderr, " -e filename Output CSV file with percentages served\n");
#ifdef USE_SSL
fprintf(stderr, " -s Use httpS instead of HTTP (SSL)\n");
#endif
fprintf(stderr, " -h Display usage information (this message)\n");
exit(EINVAL);
}
/* ------------------------------------------------------- */
/* split URL into parts */
static int parse_url(char *url)
{
char *cp;
char *h;
char *scope_id;
apr_status_t rv;
/* Save a copy for the proxy */
fullurl = apr_pstrdup(cntxt, url);
if (strlen(url) > 7 && strncmp(url, "http://", 7) == 0) {
url += 7;
#ifdef USE_SSL
ssl = 0;
#endif
}
else
#ifdef USE_SSL
if (strlen(url) > 8 && strncmp(url, "https://", 8) == 0) {
url += 8;
ssl = 1;
}
#else
if (strlen(url) > 8 && strncmp(url, "https://", 8) == 0) {
fprintf(stderr, "SSL not compiled in; no https support\n");
exit(1);
}
#endif
if ((cp = strchr(url, '/')) == NULL)
return 1;
h = apr_palloc(cntxt, cp - url + 1);
memcpy(h, url, cp - url);
h[cp - url] = '\0';
rv = apr_parse_addr_port(&hostname, &scope_id, &port, h, cntxt);
if (rv != APR_SUCCESS || !hostname || scope_id) {
return 1;
}
path = apr_pstrdup(cntxt, cp);
*cp = '\0';
if (*url == '[') { /* IPv6 numeric address string */
host_field = apr_psprintf(cntxt, "[%s]", hostname);
}
else {
host_field = hostname;
}
if (port == 0) { /* no port specified */
#ifdef USE_SSL
if (ssl == 1)
port = 443;
else
#endif
port = 80;
}
if ((
#ifdef USE_SSL
(ssl == 1) && (port != 443)) || (( ssl == 0 ) &&
#endif
(port != 80)))
{
colonhost = apr_psprintf(cntxt,":%d",port);
} else
colonhost = "";
return 0;
}
/* ------------------------------------------------------- */
/* read data to POST from file, save contents and length */
static int open_postfile(const char *pfile)
{
apr_file_t *postfd = NULL;
apr_finfo_t finfo;
apr_fileperms_t mode = APR_OS_DEFAULT;
apr_size_t length;
apr_status_t rv;
char errmsg[120];
rv = apr_file_open(&postfd, pfile, APR_READ, mode, cntxt);
if (rv != APR_SUCCESS) {
printf("Invalid postfile name (%s): %s\n", pfile,
apr_strerror(rv, errmsg, sizeof errmsg));
return rv;
}
apr_file_info_get(&finfo, APR_FINFO_NORM, postfd);
postlen = (apr_size_t)finfo.size;
postdata = (char *) malloc(postlen);
if (!postdata) {
printf("Can\'t alloc postfile buffer\n");
return APR_ENOMEM;
}
length = postlen;
rv = apr_file_read(postfd, postdata, &length);
if (rv != APR_SUCCESS) {
printf("error reading postfile: %s\n",
apr_strerror(rv, errmsg, sizeof errmsg));
return rv;
}
if (length != postlen) {
printf("error reading postfile: read only %"
APR_SIZE_T_FMT " bytes",
length);
return APR_EINVAL;
}
apr_file_close(postfd);
return 0;
}
/* ------------------------------------------------------- */
/* sort out command-line args and call test */
int main(int argc, const char * const argv[])
{
int r, l;
char tmp[1024];
apr_status_t status;
apr_getopt_t *opt;
const char *optarg;
char c;
/* table defaults */
tablestring = "";
trstring = "";
tdstring = "bgcolor=white";
cookie = "";
auth = "";
proxyhost[0] = '\0';
hdrs = "";
apr_app_initialize(&argc, &argv, NULL);
atexit(apr_terminate);
apr_pool_create(&cntxt, NULL);
#ifdef NOT_ASCII
status = apr_xlate_open(&to_ascii, "ISO8859-1", APR_DEFAULT_CHARSET, cntxt);
if (status) {
fprintf(stderr, "apr_xlate_open(to ASCII)->%d\n", status);
exit(1);
}
status = apr_xlate_open(&from_ascii, APR_DEFAULT_CHARSET, "ISO8859-1", cntxt);
if (status) {
fprintf(stderr, "apr_xlate_open(from ASCII)->%d\n", status);
exit(1);
}
status = apr_base64init_ebcdic(to_ascii, from_ascii);
if (status) {
fprintf(stderr, "apr_base64init_ebcdic()->%d\n", status);
exit(1);
}
#endif
apr_getopt_init(&opt, cntxt, argc, argv);
while ((status = apr_getopt(opt, "n:c:t:T:p:v:kVhwix:y:z:C:H:P:A:g:X:de:Sq"
#ifdef USE_SSL
"s"
#endif
,&c, &optarg)) == APR_SUCCESS) {
switch (c) {
case 's':
#ifdef USE_SSL
ssl = 1;
break;
#else
fprintf(stderr, "SSL not compiled in; no https support\n");
exit(1);
#endif
case 'n':
requests = atoi(optarg);
if (!requests) {
err("Invalid number of requests\n");
}
break;
case 'k':
keepalive = 1;
break;
case 'q':
heartbeatres = 0;
break;
case 'c':
concurrency = atoi(optarg);
break;
case 'i':
if (posting == 1)
err("Cannot mix POST and HEAD\n");
posting = -1;
break;
case 'g':
gnuplot = strdup(optarg);
break;
case 'd':
percentile = 0;
break;
case 'e':
csvperc = strdup(optarg);
break;
case 'S':
confidence = 0;
break;
case 'p':
if (posting != 0)
err("Cannot mix POST and HEAD\n");
if (0 == (r = open_postfile(optarg))) {
posting = 1;
}
else if (postdata) {
exit(r);
}
break;
case 'v':
verbosity = atoi(optarg);
break;
case 't':
tlimit = atoi(optarg);
requests = MAX_REQUESTS; /* need to size data array on
* something */
break;
case 'T':
strcpy(content_type, optarg);
break;
case 'C':
cookie = apr_pstrcat(cntxt, "Cookie: ", optarg, "\r\n", NULL);
break;
case 'A':
/*
* assume username passwd already to be in colon separated form.
* Ready to be uu-encoded.
*/
while (apr_isspace(*optarg))
optarg++;
if (apr_base64_encode_len(strlen(optarg)) > sizeof(tmp)) {
err("Authentication credentials too long\n");
}
l = apr_base64_encode(tmp, optarg, strlen(optarg));
tmp[l] = '\0';
auth = apr_pstrcat(cntxt, auth, "Authorization: Basic ", tmp,
"\r\n", NULL);
break;
case 'P':
/*
* assume username passwd already to be in colon separated form.
*/
while (apr_isspace(*optarg))
optarg++;
if (apr_base64_encode_len(strlen(optarg)) > sizeof(tmp)) {
err("Proxy credentials too long\n");
}
l = apr_base64_encode(tmp, optarg, strlen(optarg));
tmp[l] = '\0';
auth = apr_pstrcat(cntxt, auth, "Proxy-Authorization: Basic ",
tmp, "\r\n", NULL);
break;
case 'H':
hdrs = apr_pstrcat(cntxt, hdrs, optarg, "\r\n", NULL);
break;
case 'w':
use_html = 1;
break;
/*
* if any of the following three are used, turn on html output
* automatically
*/
case 'x':
use_html = 1;
tablestring = optarg;
break;
case 'X':
{
char *p;
/*
* assume proxy-name[:port]
*/
if ((p = strchr(optarg, ':'))) {
*p = '\0';
p++;
proxyport = atoi(p);
}
strcpy(proxyhost, optarg);
isproxy = 1;
}
break;
case 'y':
use_html = 1;
trstring = optarg;
break;
case 'z':
use_html = 1;
tdstring = optarg;
break;
case 'h':
usage(argv[0]);
break;
case 'V':
copyright();
return 0;
}
}
if (opt->ind != argc - 1) {
fprintf(stderr, "%s: wrong number of arguments\n", argv[0]);
usage(argv[0]);
}
if (parse_url(apr_pstrdup(cntxt, opt->argv[opt->ind++]))) {
fprintf(stderr, "%s: invalid URL\n", argv[0]);
usage(argv[0]);
}
if ((concurrency < 0) || (concurrency > MAX_CONCURRENCY)) {
fprintf(stderr, "%s: Invalid Concurrency [Range 0..%d]\n",
argv[0], MAX_CONCURRENCY);
usage(argv[0]);
}
if ((heartbeatres) && (requests > 150)) {
heartbeatres = requests / 10; /* Print line every 10% of requests */
if (heartbeatres < 100)
heartbeatres = 100; /* but never more often than once every 100
* connections. */
}
else
heartbeatres = 0;
#ifdef USE_SSL
#ifdef RSAREF
R_malloc_init();
#else
CRYPTO_malloc_init();
#endif
SSL_load_error_strings();
SSL_library_init();
bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
/* TODO: Allow force SSLv2_client_method() (TLSv1?) */
if (!(ctx = SSL_CTX_new(SSLv23_client_method()))) {
fprintf(stderr, "Could not init SSL CTX");
ERR_print_errors_fp(stderr);
exit(1);
}
SSL_CTX_set_options(ctx, SSL_OP_ALL);
#ifdef USE_THREADS
ssl_util_thread_setup(cntxt);
#endif
#endif
#ifdef SIGPIPE
apr_signal(SIGPIPE, SIG_IGN); /* Ignore writes to connections that
* have been closed at the other end. */
#endif
copyright();
test();
apr_pool_destroy(cntxt);
return 0;
}
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