Re: suggestions for postgresql setup on Dell 2950 , PERC6i controller

On Tue, Feb 17, 2009 at 5:15 PM, Matthew Wakeling <matthew(at)flymine(dot)org> wrote:
> On Tue, 17 Feb 2009, Rajesh Kumar Mallah wrote:
>>
>> sda6 --> xfs with default formatting options.
>> sda7 --> mkfs.xfs -f -d sunit=128,swidth=512 /dev/sda7
>> sda8 --> ext3 (default)
>>
>> it looks like mkfs.xfs options sunit=128 and swidth=512 did not improve
>> io throughtput as such in bonnie++ tests .
>>
>> it looks like ext3 with default options performed worst in my case.
>
> Of course, doing comparisons using a setup like that (on separate
> partitions) will skew the results, because discs' performance differs
> depending on the portion of the disc being accessed. You should perform the
> different filesystem tests on the same partition one after the other
> instead.

point noted . will redo the test on ext3.

>
> Matthew
>
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