linux-kernel - Re: [Regression 3.16-rc kernel] -55% reduction in throughput for OLTP benchmark

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: <CA+55aFzqKyM9_-KZsyABNFZcU3ECPCCFfyHmBrBiDzK3q02gLw@mail.gmail.com>
Date:	Thu, 31 Jul 2014 10:07:55 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	suruchi <suruchi.a.kadu@...el.com>, ak <ak@...ux.intel.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	"hubert.nueckel" <hubert.nueckel@...el.com>,
	beth.marsh-prime@...el.com, "doug.nelson" <doug.nelson@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [Regression 3.16-rc kernel] -55% reduction in throughput for OLTP benchmark

On Thu, Jul 31, 2014 at 9:13 AM, Tim Chen <tim.c.chen@...ux.intel.com> wrote:
> On Tue, 2014-07-29 at 17:12 -0700, Christoph Hellwig wrote:
>>
>> Can I get a tested-by tag from you for the patch?  Can anyone else
>> please cross check it?  The new total value might be different from
>> the old size value when we do a short write, but I can't see how
>> an async write would be a good thing if we had to finish the remainder
>> using buffered I/O if the old code really allowed that.
>>
>
> Yes, please put in
>
> Tested-by: Tim Chen <tim.c.chen@...ux.intel.com>
> Tested-by: Suruchi Kadu <suruchi.a.kadu@...el.com>

Ok, good, patch looks fine. Christoph, do you have a commit message for it?

              Linus
--
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/