From: Peter Zijlstra <peterz@infradead.org>
To: Pauli Nieminen <ext-pauli.nieminen@nokia.com>
Cc: ext Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Tony Lindgren <tony@atomide.com>,
Jarkko Nikula <jhnikula@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Pauli <suokkos@gmail.com>
Subject: Re: IPC between application and xserver is causing extra context switches
Date: Fri, 03 Sep 2010 09:31:14 +0200 [thread overview]
Message-ID: <1283499074.1783.59.camel@laptop> (raw)
In-Reply-To: <20100903071738.GA19353@squeeze>
On Fri, 2010-09-03 at 10:17 +0300, Pauli Nieminen wrote:
> Scheduling at write is wrong because xserver doesn't know about client
> priorities.
Waking up the client at write is correct because you don't know if there
is more to be written.
Really, your assumptions about when things schedule is wrong.
next prev parent reply other threads:[~2010-09-03 7:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-09 15:02 IPC between application and xserver is causing extra context switches Pauli Nieminen
2010-09-01 2:58 ` Mathieu Desnoyers
2010-09-03 7:17 ` Pauli Nieminen
2010-09-03 7:31 ` Peter Zijlstra [this message]
2010-09-03 8:06 ` Pauli Nieminen
2010-09-03 14:24 ` Pauli Nieminen
2010-09-03 15:30 ` Peter Zijlstra
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