diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/util/u_queue.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/util/u_queue.c b/src/util/u_queue.c index 4049a4c7692..8f6dc08b332 100644 --- a/src/util/u_queue.c +++ b/src/util/u_queue.c @@ -33,6 +33,13 @@ #include "util/u_thread.h" #include "u_process.h" +#if defined(__linux__) +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/syscall.h> +#endif + + /* Define 256MB */ #define S_256MB (256 * 1024 * 1024) @@ -258,6 +265,13 @@ util_queue_thread_func(void *input) } #endif +#if defined(__linux__) + if (queue->flags & UTIL_QUEUE_INIT_USE_MINIMUM_PRIORITY) { + /* The nice() function can only set a maximum of 19. */ + setpriority(PRIO_PROCESS, syscall(SYS_gettid), 19); + } +#endif + if (strlen(queue->name) > 0) { char name[16]; snprintf(name, sizeof(name), "%s%i", queue->name, thread_index); @@ -331,16 +345,17 @@ util_queue_create_thread(struct util_queue *queue, unsigned index) } if (queue->flags & UTIL_QUEUE_INIT_USE_MINIMUM_PRIORITY) { -#if defined(__linux__) && defined(SCHED_IDLE) +#if defined(__linux__) && defined(SCHED_BATCH) struct sched_param sched_param = {0}; /* The nice() function can only set a maximum of 19. - * SCHED_IDLE is the same as nice = 20. + * SCHED_BATCH gives the scheduler a hint that this is a latency + * insensitive thread. * * Note that Linux only allows decreasing the priority. The original * priority can't be restored. */ - pthread_setschedparam(queue->threads[index], SCHED_IDLE, &sched_param); + pthread_setschedparam(queue->threads[index], SCHED_BATCH, &sched_param); #endif } return true; |