database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-03 16:53:36 +03:00
Code Activity

Enhance the timer in the shell to show wall-clock time in addition

Browse Source 
to user and kernel CPU time.

FossilOrigin-Name: 908e2c2124baece578e7a665f42b6b483b8f1d64
This commit is contained in:
drh
2013-10-30 12:43:36 +00:00
parent c7401d51c4
commit 4340831cc9
3 changed files with 37 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
src/shell.c
View File

@@ -86,21 +86,38 @@ extern int pclose(FILE*);
#define isatty(x) 1
#endif
/* True if the timer is enabled */
static int enableTimer = 0;
/* ctype macros that work with signed characters */
#define IsSpace(X) isspace((unsigned char)X)
#define IsDigit(X) isdigit((unsigned char)X)
#define ToLower(X) (char)tolower((unsigned char)X)
/* True if the timer is enabled */
static int enableTimer = 0;
/* Return the current wall-clock time */
static sqlite3_int64 timeOfDay(void){
static sqlite3_vfs *clockVfs = 0;
sqlite3_int64 t;
if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
clockVfs->xCurrentTimeInt64(clockVfs, &t);
}else{
double r;
clockVfs->xCurrentTime(clockVfs, &r);
t = (sqlite3_int64)(r*86400000.0);
}
return t;
}
#if !defined(_WIN32) && !defined(WIN32) && !defined(_WRS_KERNEL) \
&& !defined(__minux)
#include <sys/time.h>
#include <sys/resource.h>
/* Saved resource information for the beginning of an operation */
static struct rusage sBegin;
static struct rusage sBegin; /* CPU time at start */
static sqlite3_int64 iBegin; /* Wall-clock time at start */
/*
** Begin timing an operation
@@ -108,6 +125,7 @@ static struct rusage sBegin;
static void beginTimer(void){
if( enableTimer ){
getrusage(RUSAGE_SELF, &sBegin);
iBegin = timeOfDay();
}
}
@@ -123,8 +141,10 @@ static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
static void endTimer(void){
if( enableTimer ){
struct rusage sEnd;
sqlite3_int64 iEnd = timeOfDay();
getrusage(RUSAGE_SELF, &sEnd);
printf("CPU Time: user %f sys %f\n",
printf("Run Time: real %.3f user %f sys %f\n",
(iEnd - iBegin)*0.001,
timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
}
@@ -142,6 +162,7 @@ static void endTimer(void){
static HANDLE hProcess;
static FILETIME ftKernelBegin;
static FILETIME ftUserBegin;
static sqlite3_int64 ftWallBegin;
typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME, LPFILETIME, LPFILETIME);
static GETPROCTIMES getProcessTimesAddr = NULL;
@@ -179,6 +200,7 @@ static void beginTimer(void){
if( enableTimer && getProcessTimesAddr ){
FILETIME ftCreation, ftExit;
getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelBegin, &ftUserBegin);
ftWallBegin = timeOfDay();
}
}
@@ -195,8 +217,10 @@ static double timeDiff(FILETIME *pStart, FILETIME *pEnd){
static void endTimer(void){
if( enableTimer && getProcessTimesAddr){
FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd;
sqlite3_int64 ftWallEnd = timeOfDay();
getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelEnd, &ftUserEnd);
printf("CPU Time: user %f sys %f\n",
printf("Run Time: real %.3f user %f sys %f\n",
(ftWallEnd - ftWallBegin)*0.001,
timeDiff(&ftUserBegin, &ftUserEnd),
timeDiff(&ftKernelBegin, &ftKernelEnd));
}