Re: Protect syscache from bloating with negative cache entries
От
Kyotaro Horiguchi
Тема
Re: Protect syscache from bloating with negative cache entries
Дата
Msg-id
20201120.160840.339412173339307577.horikyota.ntt@gmail.com
Ответ на
Re: Protect syscache from bloating with negative cache entries (Kyotaro Horiguchi)
Список
Дерево обсуждения
[HACKERS] Protect syscache from bloating with negative cache entries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Craig Ringer <craig@2ndquadrant.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Jim Nasby <Jim.Nasby@BlueTreble.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Thomas Munro <thomas.munro@enterprisedb.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries David Steele <david@pgmasters.net>
Re: [HACKERS] Protect syscache from bloating with negative cache entries David Steele <david@pgmasters.net>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Re: Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
Re: Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
Re: Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Robert Haas <robertmhaas@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Tom Lane <tgl@sss.pgh.pa.us>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Andres Freund <andres@anarazel.de>
Re: [HACKERS] Protect syscache from bloating with negative cacheentries Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: [HACKERS] Protect syscache from bloating with negative cache entries Michael Paquier <michael.paquier@gmail.com>
At Thu, 19 Nov 2020 15:23:05 +0900 (JST), Kyotaro Horiguchi wrote in > At Wed, 18 Nov 2020 21:42:02 -0800, Andres Freund wrote in > > Hi, > > > > On 2020-11-19 14:25:36 +0900, Kyotaro Horiguchi wrote: > > > # Creation, searching and expiration > > > master : 6393.23 (100.0) > > > patched-off: 6527.94 (102.1) > > > patched-on : 15880.01 (248.4) > > > > What's the deal with this massive increase here? > > CatCacheRemovedCTup(). If I replaced a call to the function in the > cleanup functoin with dlist_delete(), the result changes as: > > master : 6372.04 (100.0) (2) > patched-off : 6464.97 (101.5) (2) > patched-on : 5354.42 ( 84.0) (2) > > We could boost the expiration if we reuse the "deleted" entry at the > next entry creation. That result should be bogus. It forgot to update cc_ntup.. regards. -- Kyotaro Horiguchi NTT Open Source Software Center
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