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] [day] [month] [year] [list]
Date:	Thu, 6 Jan 2011 15:47:35 +0100
From:	Jan Kara <jack@...e.cz>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	ext4 development <linux-ext4@...r.kernel.org>,
	Jan Kara <jack@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/2] ext2, ext3: speed up file create workloads

On Tue 07-12-10 11:47:51, Eric Sandeen wrote:
> The addition of 64k block capability in the rec_len_from_disk
> and rec_len_to_disk functions added a bit of math overhead which
> slows down file create workloads needlessly when the architecture
> cannot even support 64k blocks, thanks to page size limits.
> 
> The directory entry checking can also be optimized a bit
> by sprinkling in some unlikely() conditions to move the
> error handling out of line.
> 
> These 2 patches speed up a bonnie++ file creation workload for
> me by several percent on ext2 & ext3.
  Thanks. I've merged both patches into my tree.

							Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists