| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | Ibrahim Harrani <ibrahim(dot)harrani(at)gmail(dot)com> |
| Cc: | Craig James <craig_james(at)emolecules(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: postgresql 8.3 tps rate |
| Date: | 2009-01-23 08:42:56 |
| Message-ID: | dcc563d10901230042s370f8013q65a987f8e85adc5b@mail.gmail.com |
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| Lists: | pgsql-performance |
On Thu, Jan 22, 2009 at 10:52 PM, Ibrahim Harrani
<ibrahim(dot)harrani(at)gmail(dot)com> wrote:
> Hi Craig,
>
> Here is the result. It seems that disk write is terrible!.
>
> root(at)myserver /usr]# time (dd if=/dev/zero of=bigfile bs=8192
> count=1000000; sync)
>
>
> 1000000+0 records in
> 1000000+0 records out
> 8192000000 bytes transferred in 945.343806 secs (8665630 bytes/sec)
That's pretty horrific. Can you try your disks without the
motherboard RAID controller in the way either singly or using software
RAID?
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