From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f54.google.com (mail-pa0-f54.google.com [209.85.220.54]) by kanga.kvack.org (Postfix) with ESMTP id 250346B0036 for ; Thu, 31 Oct 2013 20:27:19 -0400 (EDT) Received: by mail-pa0-f54.google.com with SMTP id fa1so3264851pad.41 for ; Thu, 31 Oct 2013 17:27:18 -0700 (PDT) Received: from psmtp.com ([74.125.245.204]) by mx.google.com with SMTP id cj2si3180332pbc.297.2013.10.31.17.27.17 for ; Thu, 31 Oct 2013 17:27:18 -0700 (PDT) Received: by mail-ie0-f182.google.com with SMTP id as1so6382900iec.27 for ; Thu, 31 Oct 2013 17:27:16 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <5272E8EB.5030900@codeaurora.org> References: <526844E6.1080307@codeaurora.org> <52686FF4.5000303@oracle.com> <5269BCCC.6090509@codeaurora.org> <5272E8EB.5030900@codeaurora.org> Date: Thu, 31 Oct 2013 17:27:16 -0700 Message-ID: Subject: Re: zram/zsmalloc issues in very low memory conditions From: Luigi Semenzato Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Olav Haugan , Stephen Barber Cc: Bob Liu , Minchan Kim , Seth Jennings , linux-kernel@vger.kernel.org, linux-mm@kvack.org [apologies for the previous HTML email] Hi Olav, I haven't personally done it. Seth outlines the configuration in this thread: http://thread.gmane.org/gmane.linux.kernel.mm/105378/focus=105543 Stephen, can you add more detail from your experience? Thanks! On Thu, Oct 31, 2013 at 4:34 PM, Olav Haugan wrote: > Hi Luigi, > > On 10/24/2013 6:12 PM, Luigi Semenzato wrote: >> On Thu, Oct 24, 2013 at 5:35 PM, Olav Haugan wrote: >>> Hi Bob, Luigi, >>> >>> On 10/23/2013 5:55 PM, Bob Liu wrote: >>>> >>>> On 10/24/2013 05:51 AM, Olav Haugan wrote: >>> >>>> By the way, could you take a try with zswap? Which can write pages to >>>> real swap device if compressed pool is full. >>> >>> zswap might not be feasible in all cases if you only have flash as >>> backing storage. >> >> Zswap can be configured to run without a backing storage. >> > > I was under the impression that zswap requires a backing storage. Can > you elaborate on how to configure zswap to not need a backing storage? > > > Olav Haugan > > -- > The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, > hosted by The Linux Foundation -- 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/ . Don't email: email@kvack.org