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high peak RSS on hmmer from SPEC 2006 #42

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bobby-stripe opened this issue Mar 25, 2019 · 0 comments
Open

high peak RSS on hmmer from SPEC 2006 #42

bobby-stripe opened this issue Mar 25, 2019 · 0 comments

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@bobby-stripe
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it is unclear what is going on here; median RSS is ~ 12 MB with mesh, but "only" 4 with jemalloc + libc. Our Peak RSS with Mesh is much higher too - 66 MB compared to 25 with other allocators.

Its possible this is an issue where hmmer callocs memory and we eagerly write to it, and other allocators know that "fresh" pages are zero'd already (and don't count against RSS).
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@bobby-stripe