Re: COPY v. java performance comparison
| От | Andy Colson |
|---|---|
| Тема | Re: COPY v. java performance comparison |
| Дата | |
| Msg-id | 533DA0FC.50105@squeakycode.net обсуждение исходный текст |
| Ответ на | Re: COPY v. java performance comparison (Rob Sargent <robjsargent@gmail.com>) |
| Ответы |
Re: COPY v. java performance comparison
|
| Список | pgsql-general |
On 4/3/2014 12:15 PM, Rob Sargent wrote: > Is the java app cpu bound? >> > > Also watch "vmstat 3" for a minute or two. The last two numbers (wa > > & id) (some vmstat's have a steal, ignore that) will tell you if you > > are io bound. > > > > -Andy > > > > > During COPY, with autovaccume off (server restarted, manual vacuum to > get things going). Immediately hit the "too frequently" gripe. > checkpoint_segments still at 12. > > Not cpu bound, so waiting for IO, but surely one expects that? > > vmstat 3 <snip> Did you watch top? Is anything at 100%? How many cpus are you running? (well, cpus*cores I guess) -Andy
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