Re: [rfc] lockless pagecache
From: Lincoln Dale
Date: Mon Jun 27 2005 - 03:59:34 EST
Nick Piggin wrote:
[..]
However I think for Oracle and others that use shared memory like
this, they are probably not doing linear access, so that would be a
net loss. I'm not completely sure (I don't have access to real loads
at the moment), but I would have thought those guys would have looked
into fault ahead if it were a possibility.
i thought those guys used O_DIRECT - in which case, wouldn't the page
cache not be used?
cheers,
lincoln.
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