| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | David Rowley <dgrowleyml(at)gmail(dot)com> |
| Cc: | Peter Geoghegan <pg(at)bowt(dot)ie>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Optimising compactify_tuples() |
| Date: | 2020-09-11 05:48:03 |
| Message-ID: | CA+hUKGJRtzbbhVmb83vbCiMRZ4piOAi7HWLCqs=GQ74mUPrP_w@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Sep 11, 2020 at 3:53 AM David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> That gets my benchmark down to 60.8 seconds, so 2.2 seconds better than v4b.
. o O ( I wonder if there are opportunities to squeeze some more out
of this with __builtin_prefetch... )
> I've attached v6b and an updated chart showing the results of the 10
> runs I did of it.
One failure seen like this while running check word (cfbot):
#2 0x000000000091f93f in ExceptionalCondition
(conditionName=conditionName(at)entry=0x987284 "nitems > 0",
errorType=errorType(at)entry=0x97531d "FailedAssertion",
fileName=fileName(at)entry=0xa9df0d "bufpage.c",
lineNumber=lineNumber(at)entry=442) at assert.c:67
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