linux-kernel - Re: [PATCH] Add /proc/pid/smaps

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Date:   Tue, 08 Aug 2017 11:51:40 -0700
From:   Daniel Colascione <dancol@...gle.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, timmurray@...gle.com,
        joelaf@...gle.com, viro@...iv.linux.org.uk,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] Add /proc/pid/smaps_rollup

On Tue, Aug 08 2017, Greg KH wrote:
> On Tue, Aug 08, 2017 at 11:22:55AM -0700, Daniel Colascione wrote:
>> Adding more people.
>> 
>> On Tue, Aug 08 2017, Daniel Colascione wrote:
>> > /proc/pid/smaps_rollup is a new proc file that improves the
>> > performance of user programs that determine aggregate memory
>> > statistics (e.g., total PSS) of a process.
>
> What about linux-mm?  Don't they care about this?

Thanks. Added.

>
> Also, do you have a Documentation/ABI update to describe exactly the
> output of this file so we know what it is, and know not to change it in
> the future?  Or wherever proc files are documented, I'm not sure if ABI/
> has all that many of them at the moment given the age of most of
> them...

I figured I'd get feedback on the patch itself first. Does that make sense?

>
>> > Anroid regularly "samples" the memory usage of various processes in
>
> Spell checkers are your friend :)

Egg applied to face.