linux-kernel - Re: [PATCH 1/1] fat: improve sync performance by grouping writes in fat_mirror

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f46018bb0610271155kaccbf61p86b590a9c1580b06@mail.gmail.com>
Date:	Fri, 27 Oct 2006 14:55:07 -0400
From:	"Holden Karau" <holden@...scanfly.ca>
To:	"Nick Piggin" <nickpiggin@...oo.com.au>
Cc:	"Josef Sipek" <jsipek@....cs.sunysb.edu>,
	hirofumi@...l.parknet.co.jp, linux-kernel@...r.kernel.org,
	holdenk@...dros.com, "akpm@...l.org" <akpm@...l.org>,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/1] fat: improve sync performance by grouping writes in fat_mirror_bhs [really unmangled]

Based on some rather off-the cuff bench marking I've done I get around
a 5 to 10% performance improve over the stock 2.6.18.1 performance. As
the saying goes, there are lies, damn lies, and bench marks, so YMMV.

On 10/26/06, Nick Piggin <nickpiggin@...oo.com.au> wrote:
> Holden Karau wrote:
> > From: Holden Karau <holden@...scanfly.ca> http://www.holdenkarau.com
> >
> > This is an attempt at improving fat_mirror_bhs in sync mode [namely it
> > writes all of the data for a backup block, and then blocks untill
> > finished]. The old behaviour would write & block in smaller chunks, so
> > this should be slightly faster. It also removes the fixme requesting
> > that it be fixed to behave this way :-)
> > Signed-off-by: Holden Karau <holden@...scanfly.ca> http://www.holdenkarau.com
>
> So how much is performance improved?
>
> --
> SUSE Labs, Novell Inc.
> Send instant messages to your online friends http://au.messenger.yahoo.com
>
>


-- 
Cell: 613-276-1645
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/