linux-kernel - Re: sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1

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]

Date:	Fri, 09 May 2008 08:51:10 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Cc:	Mike Galbraith <efault@....de>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>
Subject: Re: sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1


> > > -rc1.  Do you have the fix below applied?
> > 
> > Oooh - good catch, that seems to be a post -rc1 merge.
> > 
> > Yes this is required.

> With below patch+previous_fix_weight_calc, the result is improved, but is still
> about 10% worse than the one of pure 2.6.26-rc1.
> Number of threads: 16
>     read/write requests:                 6104336 (50867.11 per sec.)
> 

So puzzling - could you try -git + fix_weight_calc, as I think that is
what Mike tested and proved good on his Quad.



--
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/