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From: "Sunil Naidu" <akula2.shark@gmail.com>
To: "Willy Tarreau" <w@1wt.eu>
Cc: "Ismail Dönmez" <ismail@pardus.org.tr>, linux-kernel@vger.kernel.org
Subject: Re: Abysmal disk performance, how to debug?
Date: Sun, 21 Jan 2007 01:14:41 +0530	[thread overview]
Message-ID: <8355959a0701201144x290362d8ja6cd5bc1408475da@mail.gmail.com> (raw)
In-Reply-To: <20070120180344.GA23841@1wt.eu>

On 1/20/07, Willy Tarreau <w@1wt.eu> wrote:
> > > >
>
> It is not expected to increase write performance, but it should help
> you do something else during that time, or also give more responsiveness
> to Ctrl-C. It is possible that you have fast and slow RAM, or that your
> video card uses shared memory which slows down some parts of memory
> which are not used anymore with those parameters.

I did test some SATA drives, am getting these value for 2.6.20-rc5:-

[sukhoi@Typhoon ~]$ time dd if=/dev/zero of=/tmp/1GB bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 21.0962 seconds, 50.9 MB/s

What can you suggest here w.r.t my RAM & disk?

> Willy

Thanks,

~Akula2

  parent reply	other threads:[~2007-01-20 19:44 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-20 17:20 Ismail Dönmez
2007-01-20 17:45 ` Willy Tarreau
2007-01-20 17:52   ` Ismail Dönmez
2007-01-20 18:03     ` Willy Tarreau
2007-01-20 18:06       ` Ismail Dönmez
2007-01-20 19:44       ` Sunil Naidu [this message]
2007-01-20 19:56         ` Stephen Clark
2007-01-20 20:09           ` Willy Tarreau
2007-01-21  3:41             ` Stephen Clark
2007-01-21  4:06               ` Gene Heskett
2007-01-27 19:43             ` Bill Davidsen
2007-02-03 17:22               ` Elladan
2007-01-20 20:05         ` Willy Tarreau
2007-01-20 20:11           ` Ismail Dönmez
2007-01-20 20:10     ` Tim Schmielau
2007-01-20 20:16       ` Ismail Dönmez
2007-01-20 20:19         ` Willy Tarreau
2007-01-20 20:28           ` Tim Schmielau
2007-01-20 20:31             ` Willy Tarreau
2007-01-20 20:21         ` Tim Schmielau
2007-01-20 20:28       ` Willy Tarreau
2007-01-20 20:39         ` Tim Schmielau
2007-01-20 21:24           ` Willy Tarreau
2007-01-20 21:41             ` Tim Schmielau
2007-01-20 21:12       ` Sunil Naidu
2007-01-20 22:00         ` Tim Schmielau
2007-01-20 23:47           ` Sunil Naidu

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