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Rotate through arenas in mi_arenas_try_purge instead of always purging arena 0 if visit_all is false.

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Sergiy Kuryata 2024-11-05 13:00:50 -08:00
parent 2a3b8eb696
commit d67fe5d26a
1 changed files with 10 additions and 1 deletions
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11
src/arena.c
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@ -581,6 +581,7 @@ static bool mi_arena_try_purge(mi_arena_t* arena, mi_msecs_t now, bool force, mi
return any_purged; return any_purged;
} }
size_t mi_arena_start_purge_index = 0;
static void mi_arenas_try_purge( bool force, bool visit_all, mi_stats_t* stats ) { static void mi_arenas_try_purge( bool force, bool visit_all, mi_stats_t* stats ) {
if (_mi_preloading() || mi_arena_purge_delay() <= 0) return; // nothing will be scheduled if (_mi_preloading() || mi_arena_purge_delay() <= 0) return; // nothing will be scheduled
@ -593,8 +594,15 @@ static void mi_arenas_try_purge( bool force, bool visit_all, mi_stats_t* stats )
{ {
mi_msecs_t now = _mi_clock_now(); mi_msecs_t now = _mi_clock_now();
size_t max_purge_count = (visit_all ? max_arena : 1); size_t max_purge_count = (visit_all ? max_arena : 1);
if (mi_arena_start_purge_index >= max_arena) {
mi_arena_start_purge_index = 0;
}
size_t arena_index_to_purge = 0;
for (size_t i = 0; i < max_arena; i++) { for (size_t i = 0; i < max_arena; i++) {
mi_arena_t* arena = mi_atomic_load_ptr_acquire(mi_arena_t, &mi_arenas[i]); arena_index_to_purge = (mi_arena_start_purge_index + i) % max_arena;
mi_arena_t* arena = mi_atomic_load_ptr_acquire(mi_arena_t, &mi_arenas[arena_index_to_purge]);
if (arena != NULL) { if (arena != NULL) {
if (mi_arena_try_purge(arena, now, force, stats)) { if (mi_arena_try_purge(arena, now, force, stats)) {
if (max_purge_count <= 1) break; if (max_purge_count <= 1) break;
@ -602,6 +610,7 @@ static void mi_arenas_try_purge( bool force, bool visit_all, mi_stats_t* stats )
} }
} }
} }
mi_arena_start_purge_index = arena_index_to_purge + 1;
} }
} }