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Date: Thu, 9 Jun 2016 09:33:31 -0400 From: Johannes Weiner <hannes@...xchg.org> To: Michal Hocko <mhocko@...nel.org> Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>, Andrea Arcangeli <aarcange@...hat.com>, Andi Kleen <andi@...stfloor.org>, Tim Chen <tim.c.chen@...ux.intel.com>, kernel-team@...com Subject: Re: [PATCH 07/10] mm: base LRU balancing on an explicit cost model On Thu, Jun 09, 2016 at 02:18:02PM +0200, Michal Hocko wrote: > On Wed 08-06-16 12:16:05, Johannes Weiner wrote: > > On Wed, Jun 08, 2016 at 02:51:37PM +0200, Michal Hocko wrote: > > > On Mon 06-06-16 15:48:33, Johannes Weiner wrote: > > > > Rename struct zone_reclaim_stat to struct lru_cost, and move from two > > > > separate value ratios for the LRU lists to a relative LRU cost metric > > > > with a shared denominator. > > > > > > I just do not like the too generic `number'. I guess cost or price would > > > fit better and look better in the code as well. Up you though... > > > > Yeah, I picked it as a pair, numerator and denominator. But as Minchan > > points out, denom is superfluous in the final version of the patch, so > > I'm going to remove it and give the numerators better names. > > > > anon_cost and file_cost? > > Yes that is much more descriptive and easier to grep for. I didn't > propose that because I thought you would want to preserve the array > definition for an easier code to update them. It'll be slightly more verbose, but that's probably a good thing. Especially for readability in get_scan_count().
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