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query page size on tpool creation

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This commit is contained in:
Yatao Li 2022-01-27 20:49:40 +08:00
parent d1f13f2c84
commit 68252b4e80
1 changed files with 5 additions and 3 deletions
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8
src/tpool.c
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@ -30,6 +30,7 @@ typedef struct tpool {
int busy_cnt;
int throttle_stuck_cnt;
size_t mem_limit;
size_t page_size;
int free_arg;
int stop;
@ -120,7 +121,7 @@ int tpool_add_work(tpool_t *pool, thread_func_t func, void *arg) {
* see: https://github.com/htop-dev/htop/blob/f782f821f7f8081cb43bbad1c37f32830a260a81/linux/LinuxProcessList.c
*/
__always_inline
static size_t _get_total_mem() {
static size_t _get_total_mem(tpool_t* pool) {
FILE* statmfile = fopen("/proc/self/statm", "r");
if (!statmfile)
return 0;
@ -139,7 +140,7 @@ static size_t _get_total_mem() {
fclose(statmfile);
if (r == 7) {
return m_resident * 4096; // XXX assume 4KB pages.
return m_resident * pool->page_size;
} else {
return 0;
}
@ -172,7 +173,7 @@ static void *tpool_worker(void *arg) {
if (work != NULL) {
stuck_notified = 0;
while(!pool->stop && pool->mem_limit > 0 && _get_total_mem() >= pool->mem_limit) {
while(!pool->stop && pool->mem_limit > 0 && _get_total_mem(pool) >= pool->mem_limit) {
if (!stuck_notified && throttle_ms >= 90000) {
// notify the pool that this thread is stuck.
pthread_mutex_lock(&(pool->work_mutex));
@ -314,6 +315,7 @@ tpool_t *tpool_create(int thread_cnt, void cleanup_func(), int free_arg, int pri
pool->cleanup_func = cleanup_func;
pool->threads = calloc(sizeof(pthread_t), thread_cnt);
pool->print_progress = print_progress;
pool->page_size = getpagesize();
pthread_mutex_init(&(pool->work_mutex), NULL);