Date:   Mon, 27 Feb 2023 08:50:32 -0800
From:   Davidlohr Bueso <dave@stgolabs.net>
To:     freak07 <michalechner92@googlemail.com>
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Subject: Re: [PATCH v3 00/35] Per-VMA locks
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 <20230224092134.30603-1-michalechner92@googlemail.com>
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On Fri, 24 Feb 2023, freak07 wrote:

>Here are some measurements from a Pixel 7 Pro that=B4s running a kernel ei=
ther with the Per-VMA locks patchset or without.
>If there=B4s interest I can provide results of other specific apps as well.
>
>Results are from consecutive cold app launches issued with "am start" comm=
and spawning the main activity of Slack Android app.
>
>https://docs.google.com/spreadsheets/d/1ktujfcyDmIJoQMWsoizGIE-0A_jMS9VMw_=
seehUY9s0/edit?usp=3Dsharing
>
>There=B4s quite a noticeable improvement, as can be seen in the graph. The=
 results were reproducible.

Thanks for sharing. I am not surprised - after all, per-vma locks narrow so=
me of the performance gaps
between vanilla and speculative pfs, with less complexity (albeit this is n=
ow a 35 patch series :).

Thanks,
Davidlohr