From: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> |
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To: | pgsql-hackers(at)lists(dot)postgresql(dot)org |
Cc: | tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com, alvherre(at)alvh(dot)no-ip(dot)org, andres(at)anarazel(dot)de, robertmhaas(at)gmail(dot)com, michael(dot)paquier(at)gmail(dot)com, david(at)pgmasters(dot)net, Jim(dot)Nasby(at)bluetreble(dot)com, craig(at)2ndquadrant(dot)com, tgl(at)sss(dot)pgh(dot)pa(dot)us |
Subject: | Re: Protect syscache from bloating with negative cache entries |
Date: | 2018-07-03 00:29:14 |
Message-ID: | 20180703.092914.13123045.horiguchi.kyotaro@lab.ntt.co.jp |
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Lists: | pgsql-hackers |
Hello. The previous v4 patchset was just broken.
At Tue, 26 Jun 2018 18:00:03 +0900 (Tokyo Standard Time), Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> wrote in <20180626(dot)180003(dot)127457941(dot)horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>
> Hello. I rebased this patchset.
..
> > The attached is the patch set including this plancache stuff.
> >
> > 0001- catcache time-based expiration (The origin of this thread)
> > 0002- introduces dynahash pruning feature
> > 0003- implement relcache pruning using 0002
> > 0004- (perhaps) independent from the three above. PoC of
> > plancache pruning. Details are shown above.
>
> I found up to v3 in this thread so I named this version 4.
Somehow the 0004 was merged into the 0003 and applying 0004
results in failure. I removed 0004 part from the 0003 and rebased
and repost it.
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center
Attachment | Content-Type | Size |
---|---|---|
v5-0001-Remove-entries-that-haven-t-been-used-for-a-certain-.patch | text/x-patch | 22.4 KB |
v5-0002-introduce-dynhash-pruning.patch | text/x-patch | 13.5 KB |
v5-0003-Apply-purning-to-relcache.patch | text/x-patch | 11.5 KB |
v5-0004-Generic-plan-removal-of-PlanCacheSource.patch | text/x-patch | 10.5 KB |
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