int main()
{
pool = xmem_create_pool(sizeof(test_struct));
int total_start, alloc_start, free_start;
total_start = alloc_start = rdtsc();
for(int i = 0; i < TEST_COUNT; i++)
{
test_array[i] = xmem_alloc(pool);
}
alloc_total = rdtsc() - alloc_start;
free_start = rdtsc();
for(int i = 0; i < TEST_COUNT; i++)
{
xmem_free(pool, test_array[i]);
}
free_total = rdtsc() - free_start;
xmem_destroy_pool(pool);
total = rdtsc() - total_start;
printf("=== perf of xmem\n");
printf("alloc & free times: %d\n", TEST_COUNT);
printf("alloc time: %d CPU cycles\n", alloc_total);
printf("free time: %d CPU cycles\n", free_total);
printf("total time: %d CPU cycles\n", total);
return 0;
}
int main(int argc, char** argv)
{
deal_with_test_count(argc, argv);
pool = xmem_create_pool(sizeof(test_struct));
uint64_t total_start, alloc_start, free_start;
total_start = alloc_start = rdtsc();
for(int i = 0; i < test_count; i++)
{
test_array[i] = (test_struct*)xmem_alloc(pool);
}
alloc_total = rdtsc() - alloc_start;
free_start = rdtsc();
for(int i = 0; i < test_count; i++)
{
xmem_free(pool, (char*)test_array[i]);
}
free_total = rdtsc() - free_start;
xmem_destroy_pool(pool);
total = rdtsc() - total_start;
printf("=== perf of xmem\n");
printf("alloc & free times: %d\n", test_count);
printf("alloc time: %llu CPU cycles\n", alloc_total);
printf("free time: %llu CPU cycles\n", free_total);
printf("total time: %llu CPU cycles\n", total);
return 0;
}
/*---------------------------------------------------------------------------*/
uint8_t
lwb_stats_load(void)
{
#if LWB_CONF_USE_XMEM
if(!xmem_init()) { /* make sure external memory is accessible */
return 0;
}
stats_addr = xmem_alloc(sizeof(lwb_statistics_t));
if(XMEM_ALLOC_ERROR == stats_addr ||
!xmem_read(stats_addr, sizeof(lwb_statistics_t), (uint8_t*)&stats)) {
DEBUG_PRINT_MSG_NOW("WARNING: failed to load stats");
}
if(crc16((uint8_t*)&stats, sizeof(lwb_statistics_t) - 2, 0) != stats.crc) {
DEBUG_PRINT_MSG_NOW("WARNING: stats corrupted, values reset");
memset(&stats, 0, sizeof(lwb_statistics_t));
}
stats.reset_cnt++;
DEBUG_PRINT_MSG_NOW("stats loaded, reset count: %d", stats.reset_cnt);
return 1;
#else
return 0;
#endif /* LWB_CONF_USE_XMEM */
}