Regarding IO to disk

[Jawahar Tadipatri]

Thanks for the info Ivan.

On Wed, Jul 8, 2009 at 5:05 PM, Ivan Voras <ivoras at freebsd.org> wrote:

> Jawahar Tadipatri wrote:
>
>> Hi Folks,Can anyone please let me know the average/typical time taken for
>> completing one IO operation (read and write) to disk?
>> More specifically, time taken for writing a string to a file.
>>
>
> Your question is incomplete and cannot be answered correctly.
>
> Declared average latency for desktop hard drives (see
> http://www.seagate.com/docs/pdf/datasheet/disc/ds_barracuda_7200_12.pdf)
> is about 4 ms. Real performance depends on about a dozen factors.
>
> See here: http://www.google.com/search?q=hard+drive+performance for more
> information.
>
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