Re: optimize lookups in snapshot [sub]xip arrays

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: John Naylor <john(dot)naylor(at)enterprisedb(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, John Naylor <jcnaylor(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: optimize lookups in snapshot [sub]xip arrays
Date: 2022-08-03 17:11:59
Message-ID: 20220803171159.GB843340@nathanxps13
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Here is a new patch set. 0001 is the currently-proposed patch from the
other thread [0] for determining SSE2 support. 0002 introduces the
optimized linear search function. And 0003 makes use of the new function
for the [sub]xip lookups in XidInMVCCSnapshot().


Nathan Bossart
Amazon Web Services:

Attachment Content-Type Size
v5-0001-Support-SSE2-intrinsics-where-available.patch text/x-diff 2.1 KB
v5-0002-Introduce-optimized-routine-for-linear-searches-t.patch text/x-diff 3.3 KB
v5-0003-Optimize-linear-searches-in-XidInMVCCSnapshot.patch text/x-diff 2.8 KB

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