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Enhance the G/g MALLOC_OPTIONS flags to control GC sweep interval, rather than

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just enabling/disabling GC.
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Jason Evans
2010-01-03 14:45:26 -08:00
parent 952b7d192b
commit 3f3ecfb8e8
2 changed files with 43 additions and 15 deletions
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11
jemalloc/doc/jemalloc.3.in
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@@ -245,9 +245,14 @@ The default minimum ratio is 32:1;
.Ev JEMALLOC_OPTIONS=6D
will disable dirty page purging.
@roff_tcache@.It G
@roff_tcache@Enable/disable incremental garbage collection of unused objects
@roff_tcache@stored in thread-specific caches.
@roff_tcache@This option is enabled by default.
@roff_tcache@Double/halve the approximate interval (counted in terms of
@roff_tcache@thread-specific cache allocation/deallocation events) between full
@roff_tcache@thread-specific cache garbage collection sweeps.
@roff_tcache@Garbage collection is actually performed incrementally, one size
@roff_tcache@class at a time, in order to avoid large collection pauses.
@roff_tcache@The default sweep interval is 8192;
@roff_tcache@.Ev JEMALLOC_OPTIONS=14g
@roff_tcache@will disable garbage collection.
@roff_tcache@.It H
@roff_tcache@When there are multiple threads, use thread-specific caching for
@roff_tcache@small and medium objects.