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| author | Ben Gamari <ben@smart-cactus.org> | 2020-06-23 16:19:13 -0400 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-07-03 02:49:27 -0400 |
| commit | 8cc7274b8de254c7266b61fadbc6795dc37bd1e9 (patch) | |
| tree | 4462f93d386fe2d1a928d45bb4d7f55c34a6b259 | |
| parent | f08d6316d3d19b627550d99b4364e9bf0b45c329 (diff) | |
| download | haskell-8cc7274b8de254c7266b61fadbc6795dc37bd1e9.tar.gz | |
rts/ProfHeap: Only allocate the Censuses that we need
When not LDV profiling there is no reason to allocate 32 Censuses; one
will do. This is a very small memory footprint optimisation, but it
comes for free.
| -rw-r--r-- | rts/ProfHeap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/rts/ProfHeap.c b/rts/ProfHeap.c index 43bce78b76..0b7b386249 100644 --- a/rts/ProfHeap.c +++ b/rts/ProfHeap.c @@ -498,16 +498,17 @@ initHeapProfiling(void) #if defined(PROFILING) if (doingLDVProfiling()) { era = 1; + n_censuses = 32; } else #endif { era = 0; + n_censuses = 1; } // max_era = 2^LDV_SHIFT max_era = 1 << LDV_SHIFT; - n_censuses = 32; censuses = stgMallocBytes(sizeof(Census) * n_censuses, "initHeapProfiling"); initEra( &censuses[era] ); |