| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Rémy Beaumont <remyb(at)medrium(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: High load and iowait but no disk access |
| Date: | 2005-08-30 16:15:51 |
| Message-ID: | 22417.1125418551@sss.pgh.pa.us |
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| Lists: | pgsql-performance |
=?ISO-8859-1?Q?R=E9my_Beaumont?= <remyb(at)medrium(dot)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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