Re: Time to up bgwriter_lru_maxpages?
От | Jim Nasby |
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Тема | Re: Time to up bgwriter_lru_maxpages? |
Дата | |
Msg-id | eee1e654-7cae-d189-cc9f-7f9e85e34f66@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: Time to up bgwriter_lru_maxpages? ("Joshua D. Drake" <jd@commandprompt.com>) |
Ответы |
Re: Time to up bgwriter_lru_maxpages?
Re: Time to up bgwriter_lru_maxpages? |
Список | pgsql-hackers |
On 11/28/16 11:53 AM, Joshua D. Drake wrote: > On 11/28/2016 11:40 AM, 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? > > Considering a single SSD can do 70% of that limit, I would say yes. Next question becomes... should there even be an upper limit? -- 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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