From: linas@austin.ibm.com (Linas Vepstas)
To: Michael Ellerman <michael@ellerman.id.au>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] hvc_console polling mode timer backoff
Date: Fri, 13 Apr 2007 11:46:59 -0500 [thread overview]
Message-ID: <20070413164659.GY4747@austin.ibm.com> (raw)
In-Reply-To: <1176450459.4734.32.camel@concordia.ozlabs.ibm.com>
On Fri, Apr 13, 2007 at 05:47:39PM +1000, Michael Ellerman wrote:
>
> I played with this a bit more, and a ~2% increment seems to work nicely.
> It stays low for the first 10-20 seconds, but then approaches the max
> much faster once there's no activity for a while.
>
> A few examples:
> http://michael.ellerman.id.au/files/cell-backoff.svg
Looks good to me.
> changed it to use a shift instead of divide. So now it's more like 1.5%,
> but still the point is it increases faster as time passes.
Looks god to me. I suppose
Acked-by: Linas Vepstas <linas@austin.ibm.com>
is the right thing to say here.
--linas
next prev parent reply other threads:[~2007-04-13 16:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 16:14 [PATCH] hvc_console polling mode timer backoff Will Schmidt
2007-04-12 16:17 ` [PATCH] hvc_console typo corrections Will Schmidt
2007-04-12 17:33 ` [PATCH] hvc_console polling mode timer backoff Linas Vepstas
2007-04-12 18:43 ` Will Schmidt
2007-04-12 19:09 ` Olof Johansson
2007-04-13 0:45 ` Michael Ellerman
2007-04-13 1:56 ` Olof Johansson
2007-04-13 7:47 ` Michael Ellerman
2007-04-13 16:46 ` Linas Vepstas [this message]
2007-04-13 19:11 ` Will Schmidt
2007-04-15 13:33 ` Michael Ellerman
2007-04-16 19:34 ` Will Schmidt
2007-04-14 19:42 ` Milton Miller
2007-04-16 17:03 ` Linas Vepstas
2007-04-16 20:22 ` Will Schmidt
2007-04-16 21:59 ` Linas Vepstas
2007-04-17 0:13 ` Michael Ellerman
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