Re: Performance of CLUSTER
| От | Shaun Thomas |
|---|---|
| Тема | Re: Performance of CLUSTER |
| Дата | |
| Msg-id | 4FD5F5DC.3080507@optionshouse.com обсуждение исходный текст |
| Ответ на | Performance of CLUSTER (Mark Thornton <mthornton@optrak.com>) |
| Ответы |
Re: Performance of CLUSTER
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| Список | pgsql-performance |
On 06/10/2012 03:20 AM, Mark Thornton wrote: > 4. 3980922 rows, 1167MB, 276s > 5. 31843368 rows, 9709MB, ~ 10 hours Just judging based on the difference between these two, it would appear to be from a lot of temp space thrashing. An order of magnitude more rows shouldn't take over 100x longer to cluster, even with GIST. What's your maintenance_work_mem setting? -- Shaun Thomas OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604 312-444-8534 sthomas@optionshouse.com ______________________________________________ See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email
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