Re: analyzing, visualizing, understanding and rating I/O latency

From: Martin Berger <martin.a.berger@xxxxxxxxx>
To: goran00@xxxxxxxxx
Date: Sun, 30 Sep 2012 20:18:52 +0200

that's what histograms are for.
sometimes it even helps to calculate mean/median/mode so at least you
can 'reasonable guess' there are such effects.
But still I prefer histograms.

On Sun, Sep 30, 2012 at 12:22 PM, goran bogdanovic <goran00@xxxxxxxxx> wrote:
>> I'm generally looking into latency - for most of system disk queue
>> size and queuing time is a good indicator of performance
>> problems.
>
> ... what if SAN caching fake this values?
>
>
> --
> //www.freelists.org/webpage/oracle-l
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References:
- Re: analyzing, visualizing, understanding and rating I/O latency
  - From: goran bogdanovic

Re: analyzing, visualizing, understanding and rating I/O latency

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