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start eager commit delay at N>2

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daan 2021-11-12 19:32:57 -08:00
parent 5c08f75d69
commit 9322123a97
2 changed files with 2 additions and 2 deletions
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2
src/options.c
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@ -89,7 +89,7 @@ static mi_option_desc_t options[_mi_option_last] =
{ 1, UNINIT, MI_OPTION(eager_commit_delay) }, // the first N segments per thread are not eagerly committed (but per page in the segment on demand)
#endif
{ 1, UNINIT, MI_OPTION(allow_decommit) }, // decommit slices when no longer used (after reset_delay milli-seconds)
{ 50, UNINIT, MI_OPTION(reset_delay) }, // page reset delay in milli-seconds (= decommit)
{ 50, UNINIT, MI_OPTION(reset_delay) }, // page reset delay in milli-seconds (= decommit)
{ 500, UNINIT, MI_OPTION(segment_decommit_delay) },// decommit delay in milli-seconds for freed segments
{ 0, UNINIT, MI_OPTION(use_numa_nodes) }, // 0 = use available numa nodes, otherwise use at most N nodes.
{ 0, UNINIT, MI_OPTION(limit_os_alloc) }, // 1 = do not use OS memory for allocation (but only reserved arenas)

2
src/segment.c
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@ -656,7 +656,7 @@ static mi_segment_t* mi_segment_init(mi_segment_t* segment, size_t required, mi_
const size_t segment_size = segment_slices * MI_SEGMENT_SLICE_SIZE;
// Commit eagerly only if not the first N lazy segments (to reduce impact of many threads that allocate just a little)
const bool eager_delay = (_mi_current_thread_count() > 4 && tld->count < (size_t)mi_option_get(mi_option_eager_commit_delay));
const bool eager_delay = (_mi_current_thread_count() > 2 && tld->count < (size_t)mi_option_get(mi_option_eager_commit_delay));
const bool eager = !eager_delay && mi_option_is_enabled(mi_option_eager_commit);
bool commit = eager || (required > 0);