linux-kernel - Re: [PATCH v2 2/2] mm: add sysctl to pick vmstat monitor cpu

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, 20 Jun 2013 13:58:27 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Gilad Ben-Yossef <gilad@...yossef.com>
cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH v2 2/2] mm: add sysctl to pick vmstat monitor cpu

On Wed, 19 Jun 2013, Gilad Ben-Yossef wrote:

> Add a sysctl knob to enable admin to hand pick the scapegoat cpu
> that will perform the extra work of preiodically checking for
> new VM activity on CPUs that have switched off their vmstat_update
> work item schedling.

Not necessary if we use the dynticks sacrificial processor
(boot cpu). Seems to be also used for RCU.

--
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/