Re: [HACKERS] Time to up bgwriter_lru_maxpages?
От | Jim Nasby |
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Тема | Re: [HACKERS] Time to up bgwriter_lru_maxpages? |
Дата | |
Msg-id | d10fcbd9-c9ff-499f-9a3c-a9208bc516e9@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: [HACKERS] Time to up bgwriter_lru_maxpages? (Andres Freund <andres@anarazel.de>) |
Ответы |
Re: [HACKERS] Time to up bgwriter_lru_maxpages?
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Список | pgsql-hackers |
On 2/1/17 4:28 PM, Andres Freund wrote: > On 2016-11-28 11:40:53 -0800, Jim Nasby wrote: >> With current limits, the most bgwriter can do (with 8k pages) is 1000 pages >> * 100 times/sec = 780MB/s. It's not hard to exceed that with modern >> hardware. Should we increase the limit on bgwriter_lru_maxpages? > > FWIW, I think working on replacing bgwriter (e.g. by working on the > patch I send with a POC replacement) wholesale is a better approach than > spending time increasing limits. Do you have a link to that? I'm not seeing anything in the archives. -- Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX Experts in Analytics, Data Architecture and PostgreSQL Data in Trouble? Get it in Treble! http://BlueTreble.com 855-TREBLE2 (855-873-2532)
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