linux-kernel - Re: [PATCH RFC nohz_full 0/8] Provide infrastructure for full-system idle

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]

Message-ID: <20130627124424.GW3828@linux.vnet.ibm.com>
Date:	Thu, 27 Jun 2013 05:44:24 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...icios.com, josh@...htriplett.org,
	niv@...ibm.com, tglx@...utronix.de, rostedt@...dmis.org,
	dhowells@...hat.com, edumazet@...gle.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu
Subject: Re: [PATCH RFC nohz_full 0/8] Provide infrastructure for full-system
 idle

On Thu, Jun 27, 2013 at 11:42:26AM +0200, Peter Zijlstra wrote:
> On Wed, Jun 26, 2013 at 03:24:42PM -0700, Paul E. McKenney wrote:
> > Just to make sure I understand...  You are saying that it is OK for
> > NO_HZ_FULL to shut down timekeeping if all CPUs are idle, even if some
> > of them are taking NMIs from time to time, right?
> 
> Yeah.. its what we currently do and I don't see any reason to have
> NO_HZ_FULL behave differently there.

Whew!!!  ;-)

							Thanx, Paul

--
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/