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| author | Ben Gamari <ben@smart-cactus.org> | 2020-03-03 23:42:14 -0500 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-03-14 05:28:43 -0400 |
| commit | 20d4d676964382b313b9e44062e45a7c38621999 (patch) | |
| tree | d575a7cf7de04ad22bb309ac22baef311464a907 /rts/sm/NonMoving.h | |
| parent | 7c3e39a9a7ccb3b6c2953b0397a0d315dc0ec7d5 (diff) | |
| download | haskell-20d4d676964382b313b9e44062e45a7c38621999.tar.gz | |
nonmoving: Don't traverse filled segment list in pause
The non-moving collector would previously walk the entire filled segment
list during the preparatory pause. However, this is far more work than
is strictly necessary. We can rather get away with merely collecting the
allocators' filled segment list heads and process the lists themselves
during the concurrent phase. This can significantly reduce the maximum
gen1 GC pause time in programs with high rates of long-lived allocations.
Diffstat (limited to 'rts/sm/NonMoving.h')
| -rw-r--r-- | rts/sm/NonMoving.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rts/sm/NonMoving.h b/rts/sm/NonMoving.h index 36ecd8b0af..6eabcb8493 100644 --- a/rts/sm/NonMoving.h +++ b/rts/sm/NonMoving.h @@ -62,6 +62,7 @@ struct NonmovingSegment { // A non-moving allocator for a particular block size struct NonmovingAllocator { struct NonmovingSegment *filled; + struct NonmovingSegment *saved_filled; struct NonmovingSegment *active; // indexed by capability number struct NonmovingSegment *current[]; |