Re: Sustained inserts per sec ... ?
| От | Joshua D. Drake |
|---|---|
| Тема | Re: Sustained inserts per sec ... ? |
| Дата | |
| Msg-id | 1112388818.3487.34.camel@jd2.commandprompt.com обсуждение исходный текст |
| Ответ на | Re: Sustained inserts per sec ... ? (Christopher Petrilli <petrilli@gmail.com>) |
| Ответы |
Re: Sustained inserts per sec ... ?
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| Список | pgsql-performance |
> What seems to happen is it slams into a "wall" of some sort, the > system goes into disk write frenzy (wait=90% CPU), and eventually > recovers and starts running for a while at a more normal speed. What > I need though, is to not have that wall happen. It is easier for me > to accept a constant degredation of 5%, rather than a 99% degredation > for short periods, as it can cause cascade problems in the system. Could this possibly be a checkpoint happening? Also how many checkpoint segments do you have? > > My goal is to gather some numbers, and post code + schema + analysis. > > Chris -- Command Prompt, Inc., Your PostgreSQL solutions company. 503-667-4564 Custom programming, 24x7 support, managed services, and hosting Open Source Authors: plPHP, pgManage, Co-Authors: plPerlNG Reliable replication, Mammoth Replicator - http://www.commandprompt.com/
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