database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-12-24 11:21:21 +03:00
Code Activity

Bug#24795: Add SHOW PROFILE

Browse Source 
Patch contributed by Jeremy Cole.  CLA received Oct 2006 by Kaj Arnö

Add rudimentary query profiling support.
This commit is contained in:
cmiller@zippy.cornsilk.net
2007-01-03 17:15:10 -05:00
parent f8bd5d312b
commit 10cdf90bd3
33 changed files with 976 additions and 134 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
sql/sql_parse.cc
View File

@@ -1059,7 +1059,7 @@ void execute_init_command(THD *thd, sys_var_str *init_command_var,
Vio* save_vio;
ulong save_client_capabilities;
thd->proc_info= "Execution of init_command";
THD_PROC_INFO(thd, "Execution of init_command");
/*
We need to lock init_command_var because
during execution of init_command_var query
@@ -1159,7 +1159,7 @@ pthread_handler_t handle_one_connection(void *arg)
net->compress=1; // Use compression
thd->version= refresh_version;
thd->proc_info= 0;
THD_PROC_INFO(thd, 0);
thd->command= COM_SLEEP;
thd->set_time();
thd->init_for_queries();
@@ -1176,7 +1176,7 @@ pthread_handler_t handle_one_connection(void *arg)
sctx->host_or_ip, "init_connect command failed");
sql_print_warning("%s", net->last_error);
}
thd->proc_info=0;
THD_PROC_INFO(thd, 0);
thd->set_time();
thd->init_for_queries();
}
@@ -1259,7 +1259,7 @@ pthread_handler_t handle_bootstrap(void *arg)
if (thd->variables.max_join_size == HA_POS_ERROR)
thd->options |= OPTION_BIG_SELECTS;
thd->proc_info=0;
THD_PROC_INFO(thd, 0);
thd->version=refresh_version;
thd->security_ctx->priv_user=
thd->security_ctx->user= (char*) my_strdup("boot", MYF(MY_WME));
@@ -2106,7 +2106,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
if (thd->lock || thd->open_tables || thd->derived_tables ||
thd->prelocked_mode)
{
thd->proc_info="closing tables";
THD_PROC_INFO(thd, "closing tables");
close_thread_tables(thd); /* Free tables */
}
/*
@@ -2129,9 +2129,9 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
log_slow_statement(thd);
thd->proc_info="cleaning up";
THD_PROC_INFO(thd, "cleaning up");
VOID(pthread_mutex_lock(&LOCK_thread_count)); // For process list
thd->proc_info=0;
THD_PROC_INFO(thd, 0);
thd->command=COM_SLEEP;
thd->query=0;
thd->query_length=0;
@@ -2164,8 +2164,6 @@ void log_slow_statement(THD *thd)
*/
if (thd->enable_slow_log && !thd->user_time)
{
thd->proc_info="logging slow query";
if ((ulong) (thd->start_time - thd->time_after_lock) >
thd->variables.long_query_time ||
(thd->server_status &
@@ -2174,6 +2172,7 @@ void log_slow_statement(THD *thd)
/* == SQLCOM_END unless this is a SHOW command */
thd->lex->orig_sql_command == SQLCOM_END)
{
THD_PROC_INFO(thd, "logging slow query");
thd->status_var.long_query_count++;
mysql_slow_log.write(thd, thd->query, thd->query_length, start_of_query);
}
@@ -2697,6 +2696,20 @@ mysql_execute_command(THD *thd)
(1L << (uint) MYSQL_ERROR::WARN_LEVEL_ERROR));
break;
}
case SQLCOM_SHOW_PROFILES:
{
thd->profiling.store();
thd->profiling.discard();
res= thd->profiling.show_profiles();
break;
}
case SQLCOM_SHOW_PROFILE:
{
thd->profiling.store();
thd->profiling.discard(); // will get re-enabled by reset()
res= thd->profiling.show_last(lex->profile_options);
break;
}
case SQLCOM_SHOW_NEW_MASTER:
{
if (check_global_access(thd, REPL_SLAVE_ACL))
@@ -3544,7 +3557,7 @@ end_with_restore_list:
if (add_item_to_list(thd, new Item_null()))
goto error;
thd->proc_info="init";
THD_PROC_INFO(thd, "init");
if ((res= open_and_lock_tables(thd, all_tables)))
break;
@@ -4972,7 +4985,7 @@ end_with_restore_list:
send_ok(thd);
break;
}
thd->proc_info="query end";
THD_PROC_INFO(thd, "query end");
/* Two binlog-related cleanups: */
/*
@@ -5143,6 +5156,8 @@ check_access(THD *thd, ulong want_access, const char *db, ulong *save_priv,
else
save_priv= &dummy;
THD_PROC_INFO(thd, "checking permissions");
if ((!db || !db[0]) && !thd->db && !dont_check_global_grants)
{
DBUG_PRINT("error",("No database"));
@@ -5630,6 +5645,7 @@ void mysql_reset_thd_for_next_command(THD *thd)
thd->total_warn_count=0; // Warnings for this query
thd->rand_used= 0;
thd->sent_row_count= thd->examined_row_count= 0;
thd->profiling.reset();
}
DBUG_VOID_RETURN;
}
@@ -5853,7 +5869,7 @@ void mysql_parse(THD *thd, char *inBuf, uint length)
query_cache_abort(&thd->net);
lex->unit.cleanup();
}
thd->proc_info="freeing items";
THD_PROC_INFO(thd, "freeing items");
thd->end_statement();
thd->cleanup_after_query();
DBUG_ASSERT(thd->change_list.is_empty());