linux-kernel - Re: [RFC PATCH] sched: Pass affine target cpu into wake

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: <1262596364.22471.110.camel@minggr.sh.intel.com>
Date:	Mon, 04 Jan 2010 17:12:44 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Mike Galbraith <efault@....de>,
	lkml <linux-kernel@...r.kernel.org>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Subject: Re: [RFC PATCH] sched: Pass affine target cpu into wake_affine

On Mon, 2010-01-04 at 17:25 +0800, Peter Zijlstra wrote:
> On Mon, 2010-01-04 at 17:03 +0800, Lin Ming wrote:
> > commit a03ecf08d7bbdd979d81163ea13d194fe21ad339
> > Author: Lin Ming <ming.m.lin@...el.com>
> > Date:   Mon Jan 4 14:14:50 2010 +0800
> > 
> >     sched: Pass affine target cpu into wake_affine
> >     
> >     Since commit a1f84a3(sched: Check for an idle shared cache in select_task_rq_fair()),
> >     the affine target maybe adjusted to any idle cpu in cache sharing domains
> >     instead of current cpu.
> >     But wake_affine still use current cpu to calculate load which is wrong.
> >     
> >     This patch passes affine cpu into wake_affine.
> >     
> 
> Does this at all help with that regression?

No.

--
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/