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From Yonik Seeley <>
Subject Re: madvise and gregs hallucinations
Date Tue, 11 Dec 2012 19:59:39 GMT
On Tue, Dec 11, 2012 at 2:32 PM, Greg Bowyer <> wrote:
> Yes the index can fit in ram on the boxes I am testing with - Its the
> main rationale for sharding to make sure that we can hold an index in
> ram at all times.
> MADV_WILLNEED might be rather bad if the index is bigger than ram
> (something to test maybe)

Agree.  And the largest part of the index is often stored fields,
which have a random access pattern.


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