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/* $Id$ */
/*
* Copyright (C)2003-2007 Benny Prijono <benny@prijono.org>
*
* This program 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.
*
* This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "test.h"
#if INCLUDE_POOL_PERF_TEST
#include <pjlib.h>
#include <pj/compat/malloc.h>
#if !PJ_HAS_HIGH_RES_TIMER
# error Need high resolution timer for this test.
#endif
#define THIS_FILE "test"
#define LOOP 10
#define COUNT 1024
static unsigned sizes[COUNT];
static char *p[COUNT];
#define MIN_SIZE 4
#define MAX_SIZE 512
static unsigned total_size;
static int pool_test_pool()
{
int i;
pj_pool_t *pool = pj_pool_create(mem, NULL, total_size + 4*COUNT, 0, NULL);
if (!pool)
return -1;
for (i=0; i<COUNT; ++i) {
char *p;
if ( (p=(char*)pj_pool_alloc(pool, sizes[i])) == NULL) {
PJ_LOG(3,(THIS_FILE," error: pool failed to allocate %d bytes",
sizes[i]));
pj_pool_release(pool);
return -1;
}
*p = '\0';
}
pj_pool_release(pool);
return 0;
}
static int pool_test_malloc_free()
{
int i; /* must be signed */
for (i=0; i<COUNT; ++i) {
p[i] = (char*)malloc(sizes[i]);
if (!p[i]) {
PJ_LOG(3,(THIS_FILE," error: malloc failed to allocate %d bytes",
sizes[i]));
--i;
while (i >= 0)
free(p[i]), --i;
return -1;
}
*p[i] = '\0';
}
for (i=0; i<COUNT; ++i) {
free(p[i]);
}
return 0;
}
int pool_perf_test()
{
unsigned i;
pj_uint32_t pool_time=0, malloc_time=0, pool_time2=0;
pj_timestamp start, end;
pj_uint32_t best, worst;
/* Initialize size of chunks to allocate in for the test. */
for (i=0; i<COUNT; ++i) {
sizes[i] = MIN_SIZE + (pj_rand() % MAX_SIZE);
total_size += sizes[i];
}
/* Add some more for pool admin area */
total_size += 512;
PJ_LOG(3, (THIS_FILE, "Benchmarking pool.."));
/* Warmup */
pool_test_pool();
pool_test_malloc_free();
for (i=0; i<LOOP; ++i) {
pj_get_timestamp(&start);
if (pool_test_pool()) {
return 1;
}
pj_get_timestamp(&end);
pool_time += (end.u32.lo - start.u32.lo);
pj_get_timestamp(&start);
if (pool_test_malloc_free()) {
return 2;
}
pj_get_timestamp(&end);
malloc_time += (end.u32.lo - start.u32.lo);
pj_get_timestamp(&start);
if (pool_test_pool()) {
return 4;
}
pj_get_timestamp(&end);
pool_time2 += (end.u32.lo - start.u32.lo);
}
PJ_LOG(4,(THIS_FILE,"..LOOP count: %u",LOOP));
PJ_LOG(4,(THIS_FILE,"..number of alloc/dealloc per loop: %u",COUNT));
PJ_LOG(4,(THIS_FILE,"..pool allocation/deallocation time: %u",pool_time));
PJ_LOG(4,(THIS_FILE,"..malloc/free time: %u",malloc_time));
PJ_LOG(4,(THIS_FILE,"..pool again, second invocation: %u",pool_time2));
if (pool_time2==0) pool_time2=1;
if (pool_time < pool_time2)
best = pool_time, worst = pool_time2;
else
best = pool_time2, worst = pool_time;
PJ_LOG(3, (THIS_FILE, "..pool speedup over malloc best=%dx, worst=%dx",
(int)(malloc_time/best),
(int)(malloc_time/worst)));
return 0;
}
#endif /* INCLUDE_POOL_PERF_TEST */
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