| From: | German Becker <german(dot)becker(at)gmail(dot)com> |
|---|---|
| To: | bricklen <bricklen(at)gmail(dot)com> |
| Cc: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Disk latency goes up during certaing pediods |
| Date: | 2013-07-31 18:10:42 |
| Message-ID: | CALyjCLs1qTQimn+2oVYcw2DtFN8aRnAgh2AfYbD+uQE1n6f3uQ@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-admin |
I'm using kernel 3.2 so this probably apply. Many thanks! I'll upgrade the
kernel and let you know
On Wed, Jul 31, 2013 at 1:34 PM, bricklen <bricklen(at)gmail(dot)com> wrote:
> On Wed, Jul 31, 2013 at 9:25 AM, German Becker <german(dot)becker(at)gmail(dot)com>wrote:
>
>> To all whom might be interested, I have an update on this.
>> I run some tests on the old production DB which was Posgres 8.3 (and only
>> one disk for everything), using pgreplay, running the same queries as the
>> 9.1 server.
>> Here is the output of iostat for the 8.3 server:
>> ...
>> Here is the output for 9.1:
>> ...
>>
>
> What kernel are you running? Could it be related to a recent discussions
> about the 3.2 kernel?
> http://markmail.org/message/qosngswoy5lqmxlr
>
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