From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: Re: [PATCHv2 11/11] writeback: prevent unnecessary bdi threads wakeups Date: Thu, 22 Jul 2010 11:02:19 +0300 Message-ID: <1279785739.3044.33.camel@localhost> References: <1279704706-1267-1-git-send-email-dedekind1@gmail.com> <1279704706-1267-12-git-send-email-dedekind1@gmail.com> <20100722031922.GA3446@amd> <1279781304.3044.12.camel@localhost> <20100722080511.GA9377@amd> Reply-To: dedekind1@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Kristo Tero Tapani , Jens Axboe , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org To: Nick Piggin Return-path: Received: from smtp.nokia.com ([192.100.105.134]:21261 "EHLO mgw-mx09.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752068Ab0GVIJX (ORCPT ); Thu, 22 Jul 2010 04:09:23 -0400 In-Reply-To: <20100722080511.GA9377@amd> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Thu, 2010-07-22 at 18:05 +1000, Nick Piggin wrote: > I can see what you mean, but I think the designs in core code should > be made as efficient as possible _unless_ there is some complication > in doing otherwise (not the other way around). >=20 > This is producing 2 unrequired context switches, so I really would > like to see it done properly. Setting up a timer is really pretty > simple (or if you would care to implement a delayed process wakeup > API, I think that would be useful -- I'm surprised there isn't one > already). OK, NP, I'll work on this. The only problem I see is that it will involve more maintainers and trees (I guess Ingo?), and make it even more difficult for me to reach upstream :-) But let's try and see! --=20 Best Regards, Artem Bityutskiy (=D0=90=D1=80=D1=82=D1=91=D0=BC =D0=91=D0=B8=D1=82=D1=8E= =D1=86=D0=BA=D0=B8=D0=B9) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html