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| author | Qi Wang <interwq@gwu.edu> | 2019-07-23 19:49:17 (GMT) |
|---|---|---|
| committer | Qi Wang <interwq@gmail.com> | 2019-07-24 18:28:45 (GMT) |
| commit | 1d148f353a2c71bc12fd066e467649fd17df3c95 (patch) | |
| tree | f6ef34f5bd0bd551393092ac0c322aec933f216b | |
| parent | 4e36ce34c1e6a6f470a9355b90b0a757c6fdb0b5 (diff) | |
| download | jemalloc-1d148f353a2c71bc12fd066e467649fd17df3c95.zip jemalloc-1d148f353a2c71bc12fd066e467649fd17df3c95.tar.gz jemalloc-1d148f353a2c71bc12fd066e467649fd17df3c95.tar.bz2 | |
Optimize max_active_fit in first_fit.
Stop scanning once reached the first max_active_fit size.
| -rw-r--r-- | src/extent.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/extent.c b/src/extent.c index 6fdb7b0..a2dbde1 100644 --- a/src/extent.c +++ b/src/extent.c @@ -453,7 +453,6 @@ extents_first_fit_locked(tsdn_t *tsdn, arena_t *arena, extents_t *extents, assert(!extent_heap_empty(&extents->heaps[i])); extent_t *extent = extent_heap_first(&extents->heaps[i]); assert(extent_size_get(extent) >= size); - bool size_ok = true; /* * In order to reduce fragmentation, avoid reusing and splitting * large extents for much smaller sizes. @@ -462,10 +461,9 @@ extents_first_fit_locked(tsdn_t *tsdn, arena_t *arena, extents_t *extents, */ if (extents->delay_coalesce && (sz_pind2sz(i) >> opt_lg_extent_max_active_fit) > size) { - size_ok = false; + break; } - if (size_ok && - (ret == NULL || extent_snad_comp(extent, ret) < 0)) { + if (ret == NULL || extent_snad_comp(extent, ret) < 0) { ret = extent; } if (i == SC_NPSIZES) { |