linux-kernel - Re: [PATCH v3 04/12] arm: vdso: enforce monotonic and realtime as inline

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Message-ID: <20171030155940.GR20805@n2100.armlinux.org.uk>
Date:   Mon, 30 Oct 2017 15:59:40 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Mark Salyzyn <salyzyn@...roid.com>
Cc:     linux-kernel@...r.kernel.org, James Morse <james.morse@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andy Lutomirski <luto@...capital.net>,
        Dmitry Safonov <dsafonov@...tuozzo.com>,
        John Stultz <john.stultz@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Laura Abbott <labbott@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Andy Gross <andy.gross@...aro.org>,
        Kevin Brodsky <kevin.brodsky@....com>,
        Andrew Pinski <apinski@...ium.com>,
        linux-arm-kernel@...ts.infradead.org,
        Mark Salyzyn <salyzyn@...gle.com>
Subject: Re: [PATCH v3 04/12] arm: vdso: enforce monotonic and realtime as
 inline

On Fri, Oct 27, 2017 at 03:25:28PM -0700, Mark Salyzyn wrote:
> Ensure monotonic and realtime are inline, small price to pay for
> high volume common request.

Is this just based on a hunch, or is it based on proper measurement?
If proper measurement, where's the data?  What CPU was it measured
with?  How does this change affect other CPUs?

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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