linux-kernel - Re: [PATCH 2/2] mm, numa: Migrate pages to local nodes quicker early in the lifetime of a task

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Message-Id: <20181003140841.GC4488@linux.vnet.ibm.com>
Date:   Wed, 3 Oct 2018 19:38:41 +0530
From:   Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Jirka Hladky <jhladky@...hat.com>,
        Rik van Riel <riel@...riel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 2/2] mm, numa: Migrate pages to local nodes quicker early
 in the lifetime of a task

* Mel Gorman <mgorman@...hsingularity.net> [2018-10-03 14:21:55]:

> On Wed, Oct 03, 2018 at 06:37:41PM +0530, Srikar Dronamraju wrote:
> > * Srikar Dronamraju <srikar@...ux.vnet.ibm.com> [2018-10-02 23:00:05]:
> > 
> 

> That's unfortunate.
> 
> How much does this workload normally vary between runs? If you monitor
> migrations over time, is there an increase spike in migration early in
> the lifetime of the workload?
> 

The run to run variation has always been less than 1%.
I haven't monitored migrations over time. Will try to include it my next
run. Its a shared setup so I may not get the box immediately.


-- 
Thanks and Regards
Srikar Dronamraju