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Date: Fri, 10 Feb 2017 10:05:34 +0100 From: peter enderborg <peter.enderborg@...ymobile.com> To: Michal Hocko <mhocko@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> CC: <devel@...verdev.osuosl.org>, Riley Andrews <riandrews@...roid.com>, <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>, Arve Hjønnevåg <arve@...roid.com>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: [PATCH 1/3 staging-next] android: Collect statistics from lowmemorykiller On 02/10/2017 08:59 AM, Michal Hocko wrote: > On Fri 10-02-17 08:51:49, Greg KH wrote: >> On Fri, Feb 10, 2017 at 08:21:32AM +0100, peter enderborg wrote: > [...] >>> Until then we have to polish this version as good as we can. It is >>> essential for android as it is now. >> But if no one is willing to do the work to fix the reported issues, why >> should it remain? Can you do the work here? You're already working on >> fixing some of the issues in a differnt way, why not do the "real work" >> here instead for everyone to benifit from? > Well, to be honest, I do not think that the current code is easily > fixable. This patch improves the current situation and address some of the issues that makes android devices behaviour different than other linux systems. > The approach was wrong from the day 1. Abusing slab shrinkers > is just a bad place to stick this logic. This all belongs to the > userspace. But now it is there and we have to stick with it. > For that we need a proper mm pressure notification which is > supposed to be vmpressure but that one also doesn't seem to work all > that great. So rather than trying to fix unfixable I would stronly > suggest focusing on making vmpressure work reliably.
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