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/*
* Copyright (c) 2012 William Pitcock <nenolod@dereferenced.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY 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.
*/
#define timersub(tvp, uvp, vvp) \
do \
{ \
(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
if ((vvp)->tv_usec < 0) \
{ \
(vvp)->tv_sec--; \
(vvp)->tv_usec += 1000000; \
} \
} while (0)
#include <mowgli.h>
mowgli_allocation_policy_t *memslice;
mowgli_allocation_policy_t *sysmalloc;
int
main(int argc, char *argv[])
{
size_t i;
size_t objects;
size_t *obj_sizes;
void **ptrs;
struct timeval ts, te;
mowgli_thread_set_policy(MOWGLI_THREAD_POLICY_DISABLED);
objects = 128000;
ptrs = mowgli_alloc_array(sizeof(void *), objects);
obj_sizes = mowgli_alloc_array(sizeof(size_t), objects);
memslice = mowgli_allocation_policy_lookup("memslice");
sysmalloc = mowgli_allocation_policy_lookup("malloc");
if (sysmalloc == NULL)
{
printf("Couldn't find a sysmalloc component which implements contract 'mowgli.core.allocation_policy' :(\n");
return EXIT_FAILURE;
}
if (memslice == NULL)
{
printf("Couldn't find a memslice component which implements contract 'mowgli.core.allocation_policy' :(\n");
return EXIT_FAILURE;
}
printf("Going to allocate %zu objects of random sizes < 256\n", objects);
printf("Assigning sizes...\n");
for (i = 0; i < objects; i++)
obj_sizes[i] = rand() % 256;
printf("Done! Lets benchmark.\n");
/* allocate using sysmalloc */
gettimeofday(&ts, NULL);
for (i = 0; i < objects; i++)
ptrs[i] = mowgli_alloc_using_policy(sysmalloc, obj_sizes[i]);
gettimeofday(&te, NULL);
timersub(&te, &ts, &ts);
printf("sysmalloc alloc time: %ld usec\n",
ts.tv_sec * 1000000L + ts.tv_usec);
gettimeofday(&ts, NULL);
for (i = 0; i < objects; i++)
mowgli_free(ptrs[i]);
gettimeofday(&te, NULL);
timersub(&te, &ts, &ts);
printf("sysmalloc free time: %ld usec\n",
ts.tv_sec * 1000000L + ts.tv_usec);
/* allocate using memslice */
gettimeofday(&ts, NULL);
for (i = 0; i < objects; i++)
ptrs[i] = mowgli_alloc_using_policy(memslice, obj_sizes[i]);
gettimeofday(&te, NULL);
timersub(&te, &ts, &ts);
printf("memslice alloc time: %ld usec\n",
ts.tv_sec * 1000000L + ts.tv_usec);
gettimeofday(&ts, NULL);
for (i = 0; i < objects; i++)
mowgli_free(ptrs[i]);
gettimeofday(&te, NULL);
timersub(&te, &ts, &ts);
printf("memslice free time: %ld usec\n",
ts.tv_sec * 1000000L + ts.tv_usec);
return EXIT_SUCCESS;
}
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