From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 82109900001 for ; Fri, 29 Apr 2011 10:25:13 -0400 (EDT) Date: Fri, 29 Apr 2011 09:25:09 -0500 (CDT) From: Christoph Lameter Subject: Re: [PATCH] percpu: preemptless __per_cpu_counter_add In-Reply-To: <20110429141817.GN16552@htj.dyndns.org> Message-ID: References: <20110421190807.GK15988@htj.dyndns.org> <1303439580.3981.241.camel@sli10-conroe> <20110426121011.GD878@htj.dyndns.org> <1303883009.3981.316.camel@sli10-conroe> <20110427102034.GE31015@htj.dyndns.org> <1303961284.3981.318.camel@sli10-conroe> <20110428100938.GA10721@htj.dyndns.org> <1304065171.3981.594.camel@sli10-conroe> <20110429084424.GJ16552@htj.dyndns.org> <20110429141817.GN16552@htj.dyndns.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Tejun Heo Cc: Shaohua Li , Eric Dumazet , "akpm@linux-foundation.org" , "linux-mm@kvack.org" On Fri, 29 Apr 2011, Tejun Heo wrote: > > If someone wants more accuracy then we need the ability to dynamically set > > the batch limit similar to what the vm statistics do. > > So, if you can remove _sum() by doing the above without introducing > excessive complexity or penalizing use cases which might not have too > much commonality with vmstat, by all means, but please pay attention > to the current users. Actually take a look at them. I am content to be maintaining the vm statistics.... But Shaohua may want to have a look at it? > Also, if someone is gonna put considerable amount of effort into it, > please also invest some time into showing actual performance benefits, > or at least possibility of actual benefits. Yes. I think Shaohua already has some tests that could use some improving. So we have kind of an agreement on how to move forward? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org