Re: less than 2 sec for response - possible?
От | Jim Nasby |
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Тема | Re: less than 2 sec for response - possible? |
Дата | |
Msg-id | d4f43413-7df2-c330-7445-2760eb0b9152@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: less than 2 sec for response - possible? (trafdev <trafdev@mail.ru>) |
Ответы |
Re: less than 2 sec for response - possible?
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Список | pgsql-performance |
On 7/9/16 12:26 PM, trafdev wrote: > So does that mean Postgres is not capable to scan\aggregate less than 10 > mln rows and deliver result in less than 2 seconds? That's going to depend entirely on your hardware, and how big the rows are. At some point you're simply going to run out of memory bandwidth, especially since your access pattern is very scattered. > On 07/06/16 09:46, trafdev wrote: >> Well, our CPU\RAM configs are almost same... >> >> The difference is - you're fetching\grouping 8 times less rows than I: Huh? The explain output certainly doesn't show that. -- 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) mobile: 512-569-9461
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