| From: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
|---|---|
| To: | Sev Zaslavsky <sevzas(at)gmail(dot)com>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: slow query - will CLUSTER help? |
| Date: | 2013-12-19 20:14:16 |
| Message-ID: | 1387484056.45481.YahooMailNeo@web162906.mail.bf1.yahoo.com |
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| Lists: | pgsql-performance |
Sev Zaslavsky <sevzas(at)gmail(dot)com> wrote:
I want to agree with everything Shaun said and add a tiny bit.
> Does loading 24Gb of data in 21 sec seem "about right"?
It's a little on the slow side. You said 1634 page reads. At 9 ms
per read that would be 14.7 seconds. But I'm basing the 9 ms per
page read on my Linux experience, and I remember benchmarking the
same application hitting PostgreSQL on the same hardware as about
30% faster on Linux than on Windows, so that *almost* makes up for
the difference.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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