Re: High load and iowait but no disk access
| От | Tom Lane |
|---|---|
| Тема | Re: High load and iowait but no disk access |
| Дата | |
| Msg-id | 22417.1125418551@sss.pgh.pa.us обсуждение исходный текст |
| Ответ на | High load and iowait but no disk access (Rémy Beaumont <remyb@medrium.com>) |
| Список | pgsql-performance |
=?ISO-8859-1?Q?R=E9my_Beaumont?= <remyb@medrium.com> writes:
> The stats of the NetApp do confirm that it is sitting idle.
Really?
> CPU NFS CIFS HTTP Total Net kB/s Disk kB/s Tape kB/s
> Cache Cache CP CP Disk DAFS FCP iSCSI FCP kB/s
> in out read write read write
> age hit time ty util in out
> 2% 0 0 0 139 0 0 2788 0 0 0
> 3 96% 0% - 15% 0 139 0 3 2277
> 2% 0 0 0 144 0 0 2504 0 0 0
> 3 96% 0% - 18% 0 144 0 3 2150
> 2% 0 0 0 130 0 0 2212 0 0 0
> 3 96% 0% - 13% 0 130 0 3 1879
> 3% 0 0 0 169 0 0 2937 80 0 0
> 3 96% 0% - 13% 0 169 0 4 2718
> 2% 0 0 0 139 0 0 2448 0 0 0
> 3 96% 0% - 12% 0 139 0 3 2096
I know zip about NetApps, but doesn't the 8th column indicate pretty
steady disk reads?
regards, tom lane
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