29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
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commit d8cd36058b528f56bd579204426143be1e1eac6d
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Author: Panu Matilainen <pmatilai@redhat.com>
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Date: Wed Feb 8 10:56:09 2012 +0200
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Switch back to former, much smaller BDB memory pool size (RhBug:752897)
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- A larger cache is beneficial in various scenarios, but triggers
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horrible worst-case performance under memory pressure (or so my
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current theory goes, there might be other factors too). The
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worst-case degration is orders of magnitude bigger than the best-case
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improvements from the larger cache and for many use-cases doesn't
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make a whole lot difference. We could/should tune the cache with
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priorizing indexes and all, and perhaps dynamically select the
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cache size but for now, the 1Mb cache size is known to "just work".
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diff --git a/macros.in b/macros.in
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index f835fec..6034721 100644
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--- a/macros.in
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+++ b/macros.in
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@@ -535,7 +535,7 @@ print (t)\
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#
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# Misc BDB tuning options
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-%__dbi_other mp_mmapsize=128Mb mp_size=64Mb
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+%__dbi_other mp_mmapsize=128Mb mp_size=1Mb
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%_dbi_config %{?__dbi_other}
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