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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/wait.h>
void print_stats(struct timespec tv0)
{
FILE *f;
char buf[256];
struct timespec tv;
int maj, min, in_heap=0;
unsigned long l;
size_t vm_size=0, vm_rss=0, vm_priv_dirty=0;
clock_gettime(CLOCK_REALTIME, &tv);
tv.tv_sec -= tv0.tv_sec;
if ((tv.tv_nsec -= tv0.tv_nsec) < 0) {
tv.tv_nsec += 1000000000;
tv.tv_sec--;
}
f = fopen("/proc/self/smaps", "rb");
if (f) while (fgets(buf, sizeof buf, f)) {
if (sscanf(buf, "%*lx-%*lx %*s %*lx %x:%x %*lu %*s", &maj, &min)==2)
in_heap = (!maj && !min && !strstr(buf, "---p") && (strstr(buf, "[heap]") || !strchr(buf, '[')));
if (in_heap) {
if (sscanf(buf, "Size: %lu", &l)==1) vm_size += l;
else if (sscanf(buf, "Rss: %lu", &l)==1) vm_rss += l;
else if (sscanf(buf, "Private_Dirty: %lu", &l)==1) vm_priv_dirty += l;
}
}
if (f) fclose(f);
printf(" time: %ld.%.9ld, virt: %zu, res: %zu, dirty: %zu\n\n",
(long)tv.tv_sec, (long)tv.tv_nsec,
vm_size, vm_rss, vm_priv_dirty);
}
int run_bench(const char *label, size_t (*bench)(void *), void *params)
{
struct timespec tv0;
pid_t p = fork();
if (p) {
int status;
wait(&status);
return status;
}
puts(label);
clock_gettime(CLOCK_REALTIME, &tv0);
bench(params);
print_stats(tv0);
exit(0);
}
#define RUN(a, b) \
extern size_t (a)(void *); \
run_bench(#a " (" #b ")", (a), (b))
int main()
{
RUN(b_malloc_sparse, 0);
RUN(b_malloc_bubble, 0);
RUN(b_malloc_tiny1, 0);
RUN(b_malloc_tiny2, 0);
RUN(b_malloc_big1, 0);
RUN(b_malloc_big2, 0);
RUN(b_malloc_thread_stress, 0);
RUN(b_malloc_thread_local, 0);
RUN(b_string_strstr, "abcdefghijklmnopqrstuvwxyz");
RUN(b_string_strstr, "azbycxdwevfugthsirjqkplomn");
RUN(b_string_strstr, "aaaaaaaaaaaaaacccccccccccc");
RUN(b_string_strstr, "aaaaaaaaaaaaaaaaaaaaaaaaac");
RUN(b_string_strstr, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaac");
RUN(b_string_memset, 0);
RUN(b_string_strchr, 0);
RUN(b_string_strlen, 0);
RUN(b_pthread_createjoin_serial1, 0);
RUN(b_pthread_createjoin_serial2, 0);
RUN(b_pthread_create_serial1, 0);
RUN(b_pthread_uselesslock, 0);
RUN(b_pthread_createjoin_minimal1, 0);
RUN(b_pthread_createjoin_minimal2, 0);
RUN(b_utf8_bigbuf, 0);
RUN(b_utf8_onebyone, 0);
RUN(b_stdio_putcgetc, 0);
RUN(b_stdio_putcgetc_unlocked, 0);
RUN(b_regex_compile, "(a|b|c)*d*b");
RUN(b_regex_search, "(a|b|c)*d*b");
RUN(b_regex_search, "a{25}b");
}
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