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benchmark.c
718 lines (581 loc) · 15.1 KB
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benchmark.c
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/*
* Benchmarking module for OpenSIPS
*
* Copyright (C) 2007 Collax GmbH
* (Bastian Friedrich <bastian.friedrich@collax.com>)
* Copyright (C) 2007 Voice Sistem SRL
*
* This file is part of opensips, a free SIP server.
*
* opensips is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* opensips is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#define _GNU_SOURCE
#include <string.h>
#include <sys/time.h>
#include <stdlib.h>
#include "../../sr_module.h"
#include "../../locking.h"
#include "../../mi/mi.h"
#include "../../mem/mem.h"
#include "../../ut.h"
#include "benchmark.h"
#include "../../mem/shm_mem.h"
#define MI_CALL_INVALID_S "Call not valid for granularity!=0"
#define MI_CALL_INVALID_LEN (sizeof(MI_CALL_INVALID_S)-1)
#define STARTING_MIN_VALUE 0xffffffff
/* Exported functions */
static int bm_start_timer(struct sip_msg* _msg, void* timer);
static int bm_log_timer(struct sip_msg* _msg, void* timer);
/*
* Module destroy function prototype
*/
static void destroy(void);
/*
* Module child-init function prototype
*/
static int child_init(int rank);
/*
* Module initialization function prototype
*/
static int mod_init(void);
/*
* Exported parameters
* Copied to mycfg on module initialization
*/
static int bm_enable_global = 0;
static int bm_granularity = 100;
static int bm_loglevel = L_INFO;
static int _bm_last_time_diff = 0;
/*
* Module setup
*/
typedef struct bm_cfg {
int enable_global;
int granularity;
int loglevel;
/* The internal timers */
int nrtimers;
benchmark_timer_t *timers;
benchmark_timer_t **tindex;
} bm_cfg_t;
/*
* The setup is located in shared memory so that
* all instances can access this variable
*/
bm_cfg_t *bm_mycfg = 0;
static inline int fixup_bm_timer(void** param);
/*
* Exported functions
*/
static cmd_export_t cmds[] = {
{"bm_start_timer", (cmd_function)bm_start_timer, {
{CMD_PARAM_STR, fixup_bm_timer, 0}, {0,0,0}},
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"bm_log_timer", (cmd_function)bm_log_timer, {
{CMD_PARAM_STR, fixup_bm_timer, 0}, {0,0,0}},
REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE|
STARTUP_ROUTE|TIMER_ROUTE|EVENT_ROUTE},
{"load_bm", (cmd_function)load_bm, {{0,0,0}}, 0},
{0,0,{{0,0,0}},0}
};
/*
* Exported parameters
*/
static param_export_t params[] = {
{"enable", INT_PARAM, &bm_enable_global},
{"granularity", INT_PARAM, &bm_granularity},
{"loglevel", INT_PARAM, &bm_loglevel},
{ 0, 0, 0 }
};
/*
* Exported MI functions
*/
mi_response_t *mi_bm_enable_global(const mi_params_t *params,
struct mi_handler *async_hdl);
mi_response_t *mi_bm_enable_timer(const mi_params_t *params,
struct mi_handler *async_hdl);
mi_response_t *mi_bm_granularity(const mi_params_t *params,
struct mi_handler *async_hdl);
mi_response_t *mi_bm_loglevel(const mi_params_t *params,
struct mi_handler *async_hdl);
mi_response_t *mi_bm_poll_results(const mi_params_t *params,
struct mi_handler *async_hdl);
static mi_export_t mi_cmds[] = {
{ "bm_enable_global", 0,0,0, {
{mi_bm_enable_global, {"enable", 0}},
{EMPTY_MI_RECIPE}}
},
{ "bm_enable_timer", 0,0,0, {
{mi_bm_enable_timer, {"timer", "enable", 0}},
{EMPTY_MI_RECIPE}}
},
{ "bm_granularity", 0,0,0, {
{mi_bm_granularity, {"granularity", 0}},
{EMPTY_MI_RECIPE}}
},
{ "bm_loglevel", 0,0,0, {
{mi_bm_loglevel, {"log_level", 0}},
{EMPTY_MI_RECIPE}}
},
{ "bm_poll_results", 0,0,0, {
{mi_bm_poll_results, {0}},
{EMPTY_MI_RECIPE}}
},
{EMPTY_MI_EXPORT}
};
static int bm_get_time_diff(struct sip_msg *msg, pv_param_t *param,
pv_value_t *res);
static pv_export_t mod_items[] = {
{ {"BM_time_diff", sizeof("BM_time_diff")-1}, 1000, bm_get_time_diff, 0,
0, 0, 0, 0 },
{ {0, 0}, 0, 0, 0, 0, 0, 0, 0 }
};
/*
* Module interface
*/
struct module_exports exports = {
"benchmark",
MOD_TYPE_DEFAULT,/* class of this module */
MODULE_VERSION,
DEFAULT_DLFLAGS,
0, /* load function */
NULL, /* OpenSIPS module dependencies */
0, /* OpenSIPS dependencies function */
cmds, /* Exported functions */
0, /* Exported async functions */
params, /* Exported parameters */
0, /* exported statistics */
mi_cmds, /* exported MI functions */
mod_items, /* exported pseudo-variables */
0, /* exported transformations */
0, /* extra processes */
mod_init, /* module initialization function */
0, /* response function */
destroy, /* destroy function */
child_init, /* child initialization function */
0 /* reload confirm function */
};
/****************/
/*
* mod_init
* Called by opensips at init time
*/
static int mod_init(void) {
int ret = 0;
LM_INFO("benchmark: initializing\n");
bm_mycfg = (bm_cfg_t*)shm_malloc(sizeof(bm_cfg_t));
memset(bm_mycfg, 0, sizeof(bm_cfg_t));
bm_mycfg->enable_global = bm_enable_global;
if (bm_granularity<0) {
LM_ERR("benchmark granularity cannot be negative\n");
return -1;
}
bm_mycfg->granularity = bm_granularity;
bm_mycfg->loglevel = bm_loglevel;
return ret;
}
static int child_init(int rank)
{
LM_INFO("initing child...\n");
return 0;
}
/*
* destroy
* called by opensips at exit time
*/
static void destroy(void)
{
benchmark_timer_t *bmt = 0;
benchmark_timer_t *bmp = 0;
if(bm_mycfg!=NULL)
{
/* free timers list */
bmt = bm_mycfg->timers;
while(bmt)
{
bmp = bmt;
bmt = bmt->next;
shm_free(bmp);
}
if(bm_mycfg->tindex)
shm_free(bm_mycfg->tindex);
shm_free(bm_mycfg);
}
}
/* timer should be locked when calling this function */
static void soft_reset_timer(benchmark_timer_t *timer) {
timer->calls = 0;
timer->last_sum = 0;
timer->last_max = 0;
timer->last_min = STARTING_MIN_VALUE;
}
static void reset_timer(int i)
{
benchmark_timer_t *timer;
if(bm_mycfg==NULL || (timer = bm_mycfg->tindex[i])==NULL)
return;
lock_get(timer->lock);
timer->calls = 0;
timer->sum = 0;
timer->last_max = 0;
timer->last_min = STARTING_MIN_VALUE;
timer->last_sum = 0;
timer->global_calls = 0;
timer->global_max = 0;
timer->global_min = STARTING_MIN_VALUE;
lock_release(timer->lock);
}
/*
* timer_active().
* Global enable mode can be:
* -1 - All timing disabled
* 0 - Timing enabled, watch for single timers enabled (default: off)
* 1 - Timing enabled for all timers
*/
static inline int timer_active(unsigned int id)
{
if (bm_mycfg->enable_global > 0 || bm_mycfg->timers[id].enabled > 0)
return 1;
else
return 0;
}
/*
* start_timer()
*/
static int _bm_start_timer(unsigned int id)
{
if (timer_active(id))
{
if(bm_get_time(bm_mycfg->tindex[id]->start)!=0)
{
LM_ERR("error getting current time\n");
return -1;
}
}
return 1;
}
static int bm_start_timer(struct sip_msg* _msg, void* timer)
{
return _bm_start_timer((unsigned int)(unsigned long)timer);
}
/*
* log_timer()
*/
static int _bm_log_timer(unsigned int id)
{
/* BM_CLOCK_REALTIME */
bm_timeval_t now;
unsigned long long tdiff;
benchmark_timer_t *timer;
if (!timer_active(id))
return 1;
if(bm_get_time(&now)<0)
{
LM_ERR("error getting current time\n");
return -1;
}
timer = bm_mycfg->tindex[id];
tdiff = bm_diff_time(timer->start, &now);
_bm_last_time_diff = (int)tdiff;
/* What to do
* - update min, max, sum
* - if granularity hit: Log, reset min/max
*/
lock_get(timer->lock);
timer->sum += tdiff;
timer->last_sum += tdiff;
timer->calls++;
timer->global_calls++;
if (tdiff < timer->last_min)
timer->last_min = tdiff;
if (tdiff > timer->last_max)
timer->last_max = tdiff;
if (tdiff < timer->global_min)
timer->global_min = tdiff;
if (tdiff > timer->global_max)
timer->global_max = tdiff;
if (bm_mycfg->granularity > 0 && timer->calls >= bm_mycfg->granularity)
{
LM_GEN1(bm_mycfg->loglevel, "benchmark (timer %s [%d]): %llu ["
" msgs/total/min/max/avg - LR:"
" %i/%lld/%lld/%lld/%f | GB: %lld/%lld/%lld/%lld/%f]\n",
timer->name,
id,
tdiff,
timer->calls,
timer->last_sum,
timer->last_min,
timer->last_max,
((double)timer->last_sum)/bm_mycfg->granularity,
timer->global_calls,
timer->sum,
timer->global_min,
timer->global_max,
((double)timer->sum)/timer->global_calls);
soft_reset_timer(timer);
}
lock_release(timer->lock);
return 1;
}
static int bm_log_timer(struct sip_msg* _msg, void* timer)
{
return _bm_log_timer((unsigned int)(unsigned long)timer);
}
static int _bm_register_timer(char *tname, int mode, unsigned int *id)
{
benchmark_timer_t *bmt = 0;
benchmark_timer_t **tidx = 0;
if(tname==NULL || id==NULL || bm_mycfg==NULL || strlen(tname)==0
|| strlen(tname)>BM_NAME_LEN-1)
return -1;
bmt = bm_mycfg->timers;
while(bmt)
{
if(strcmp(bmt->name, tname)==0)
{
*id = bmt->id;
return 0;
}
bmt = bmt->next;
}
if(mode==0)
return -1;
bmt = (benchmark_timer_t*)shm_malloc(sizeof(benchmark_timer_t));
if(bmt==0)
{
LM_ERR("no more shm\n");
return -1;
}
memset(bmt, 0, sizeof(benchmark_timer_t));
bmt->lock = lock_alloc();
if(bmt->lock == NULL) {
shm_free(bmt);
LM_ERR("no more shm\n");
return -1;
}
if (!lock_init(bmt->lock)) {
lock_dealloc(bmt->lock);
shm_free(bmt);
LM_ERR("failed to init lock\n");
return -1;
}
/* private memory, otherwise we have races */
bmt->start = (bm_timeval_t*)pkg_malloc(sizeof(bm_timeval_t));
if(bmt->start == NULL)
{
lock_dealloc(bmt->lock);
shm_free(bmt);
LM_ERR("no more pkg\n");
return -1;
}
memset(bmt->start, 0, sizeof(bm_timeval_t));
strcpy(bmt->name, tname);
if(bm_mycfg->timers==0)
{
bmt->id = 0;
bm_mycfg->timers = bmt;
} else {
bmt->id = bm_mycfg->timers->id+1;
bmt->next = bm_mycfg->timers;
bm_mycfg->timers = bmt;
}
/* do the indexing */
if(bmt->id%10==0)
{
if(bm_mycfg->tindex!=NULL)
tidx = bm_mycfg->tindex;
bm_mycfg->tindex = (benchmark_timer_t**)shm_malloc((10+bmt->id)*
sizeof(benchmark_timer_t*));
if(bm_mycfg->tindex==0)
{
LM_ERR("no more share memory\n");
if(tidx!=0)
shm_free(tidx);
return -1;
}
memset(bm_mycfg->tindex, 0, (10+bmt->id)*sizeof(benchmark_timer_t*));
if(tidx!=0)
{
memcpy(bm_mycfg->tindex, tidx, bmt->id*sizeof(benchmark_timer_t*));
shm_free(tidx);
}
}
bm_mycfg->tindex[bmt->id] = bmt;
bm_mycfg->nrtimers = bmt->id + 1;
reset_timer(bmt->id);
*id = bmt->id;
LM_DBG("timer [%s] added with index <%u>\n", bmt->name, bmt->id);
return 0;
}
/* API Binding */
int load_bm( struct bm_binds *bmb)
{
if(bmb==NULL)
return -1;
bmb->bm_register = _bm_register_timer;
bmb->bm_start = _bm_start_timer;
bmb->bm_log = _bm_log_timer;
return 1;
}
static inline char * pkg_strndup( char* _p, int _len)
{
char *s;
s = (char*)pkg_malloc(_len+1);
if (s==NULL)
return NULL;
memcpy(s,_p,_len);
s[_len] = 0;
return s;
}
/* MI functions */
/*
* Expects 1 node: 0 for disable, 1 for enable
*/
mi_response_t *mi_bm_enable_global(const mi_params_t *params,
struct mi_handler *async_hdl)
{
int v1;
if (get_mi_int_param(params, "enable", &v1) < 0)
init_mi_param_error();
if ((v1 < -1) || (v1 > 1))
return init_mi_error(400, MI_SSTR("Bad parameter value"));
bm_mycfg->enable_global = v1;
return init_mi_result_ok();
}
mi_response_t *mi_bm_enable_timer(const mi_params_t *params,
struct mi_handler *async_hdl)
{
char *p1;
int v2;
unsigned int id;
str timer;
if (get_mi_string_param(params, "timer", &timer.s, &timer.len) < 0)
return init_mi_param_error();
p1 = pkg_strndup(timer.s, timer.len);
if(_bm_register_timer(p1, 0, &id)!=0)
{
pkg_free(p1);
return init_mi_error(400, MI_SSTR("Failed to register timer"));
}
pkg_free(p1);
if (get_mi_int_param(params, "enable", &v2) < 0)
init_mi_param_error();
if ((v2 < 0) || (v2 > 1))
return init_mi_error(400, MI_SSTR("Bad parameter value"));
bm_mycfg->timers[id].enabled = v2;
return init_mi_result_ok();
}
mi_response_t *mi_bm_granularity(const mi_params_t *params,
struct mi_handler *async_hdl)
{
int v1;
if (get_mi_int_param(params, "granularity", &v1) < 0)
init_mi_param_error();
if (v1 < 0)
return init_mi_error(400, MI_SSTR("Bad value for parameter"));
bm_mycfg->granularity = v1;
return init_mi_result_ok();
}
mi_response_t *mi_bm_loglevel(const mi_params_t *params,
struct mi_handler *async_hdl)
{
int v1;
if (get_mi_int_param(params, "log_level", &v1) < 0)
init_mi_param_error();
if ((v1 < -3) || (v1 > 4)) /* Maximum log levels */
return init_mi_error(400, MI_SSTR("Bad value for parameter"));
bm_mycfg->enable_global = v1;
return init_mi_result_ok();
}
static int add_results_item(mi_item_t *timer_item, benchmark_timer_t *timer)
{
if (add_mi_string(timer_item, MI_SSTR("name"),
timer->name, strlen(timer->name)) < 0)
return -1;
if (add_mi_string_fmt(timer_item, MI_SSTR("global"), "%i/%lld/%lld/%lld/%f",
timer->calls,
timer->last_sum,
timer->last_min==STARTING_MIN_VALUE?0:timer->last_min,
timer->last_max,
timer->calls?((double)timer->last_sum)/timer->calls:0.) < 0)
return -1;
if (add_mi_string_fmt(timer_item, MI_SSTR("local"), "%lld/%lld/%lld/%lld/%f",
timer->global_calls,
timer->sum,
timer->global_min==STARTING_MIN_VALUE?0:timer->global_min,
timer->global_max,
timer->global_calls?((double)timer->sum)/timer->global_calls:0.) < 0)
return -1;
return 0;
}
mi_response_t *mi_bm_poll_results(const mi_params_t *params,
struct mi_handler *async_hdl)
{
mi_response_t *resp;
mi_item_t *resp_obj;
mi_item_t *timers_arr, *timer_item;
benchmark_timer_t *bmt;
int rc;
if (bm_mycfg->granularity!=0)
return init_mi_error(400, MI_CALL_INVALID_S, MI_CALL_INVALID_LEN);
resp = init_mi_result_object(&resp_obj);
if (!resp)
return 0;
timers_arr = add_mi_array(resp_obj, MI_SSTR("Timers"));
if (timers_arr)
goto error;
for(bmt = bm_mycfg->timers; bmt!=NULL; bmt=bmt->next) {
timer_item = add_mi_object(timers_arr, NULL, 0);
if (!timer_item)
goto error;
lock_get(bmt->lock);
rc = add_results_item(timer_item, bmt);
soft_reset_timer(bmt);
lock_release(bmt->lock);
if (rc < 0)
goto error;
}
return resp;
error:
free_mi_response(resp);
return 0;
}
/* item functions */
static int bm_get_time_diff(struct sip_msg *msg, pv_param_t *param,
pv_value_t *res)
{
if(msg==NULL)
return -1;
return pv_get_sintval(msg, param, res, _bm_last_time_diff);
}
static inline int fixup_bm_timer(void** param)
{
unsigned int tid = 0;
str tname;
if (pkg_nt_str_dup(&tname, (str*)*param) < 0)
return E_UNSPEC;
if((_bm_register_timer(tname.s, 1, &tid))!=0)
{
LM_ERR("cannot register timer [%s]\n", (char*)(*param));
pkg_free(tname.s);
return E_UNSPEC;
}
*param = (void*)(unsigned long)tid;
pkg_free(tname.s);
return 0;
}
/* End of file */