linux-kernel - Re: [PATCH] mm, compaction: Indicate when compaction is manually triggered by sysctl

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Message-ID: <cd43b4d6-7a2e-3e92-0a15-19597e9df4fd@sony.com>
Date:   Mon, 18 May 2020 12:54:24 +0000
From:   "Enderborg, Peter" <Peter.Enderborg@...y.com>
To:     Guilherme Piccoli <gpiccoli@...onical.com>
CC:     David Rientjes <rientjes@...gle.com>,
        "Guilherme G. Piccoli" <kernel@...ccoli.net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Gavin Guo <gavin.guo@...onical.com>,
        Mel Gorman <mgorman@...hsingularity.net>
Subject: Re: [PATCH] mm, compaction: Indicate when compaction is manually
 triggered by sysctl

On 5/18/20 2:14 PM, Guilherme Piccoli wrote:
> Hi Peter, thanks for the feedback. What do you mean by "trace
> notification" ? We seem to have a trace event in that function you
> mentioned. Also, accounting for that function is enough to
> differentiate when the compaction is triggered by the kernel itself or
> by the user (which is our use case here) ?

Usually change existing causes confusion. It should not be a problem but it happen.


> Cheers,
>
>
> Guilherme