From: Mike Galbraith <mgalbraith@suse.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] clockevents: Per cpu tick skew boot option
Date: Tue, 08 May 2012 05:20:21 +0200 [thread overview]
Message-ID: <1336447221.7364.2.camel@marge.simpson.net> (raw)
In-Reply-To: <alpine.LFD.2.02.1205072115000.6271@ionos>
On Mon, 2012-05-07 at 21:17 +0200, Thomas Gleixner wrote:
> On Sun, 6 May 2012, Mike Galbraith wrote:
> >
> > + skew_tick= [KNL] Offset the periodic timer tick per cpu to mitigate
> > + xtime_lock contention on larger systems. Note: increases
> > + power consumption, and should only be enabled if running
> > + jitter sensitive (HPC/RT) workloads.
> > +
>
> The "=" is wrong as skew_tick should not take parameters. It's
> disabled by default. So "skew_tick" simply enables it, right ?
Unless as I have RT set up, it's turned on by default, so '=' lets the
user turn it back off.
-Mike
next prev parent reply other threads:[~2012-05-08 3:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-06 12:58 [PATCH] clockevents: Per cpu tick skew boot option Mike Galbraith
2012-05-06 13:10 ` Mike Galbraith
2012-05-07 19:17 ` Thomas Gleixner
2012-05-08 3:20 ` Mike Galbraith [this message]
2012-05-08 9:44 ` Thomas Gleixner
2012-05-08 10:20 ` Mike Galbraith
2012-05-10 18:16 ` Paul E. McKenney
2012-05-23 15:23 ` [PATCH v3] " Mike Galbraith
2012-05-24 23:52 ` [tip:timers/core] tick: Add " tip-bot for Mike Galbraith
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