linux-kernel - Re: [PATCH v2] timer: Use static_branch_likely() for timers_nohz

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Message-ID: <87im0dqohb.ffs@tglx>
Date:   Tue, 10 Aug 2021 18:00:16 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Jisheng Zhang <Jisheng.Zhang@...aptics.com>,
        John Stultz <john.stultz@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] timer: Use static_branch_likely() for
 timers_nohz_active

Jisheng,

On Thu, Jun 24 2021 at 16:32, Jisheng Zhang wrote:

> The static key timers_nohz_active is likely to be true, so use
> static_branch_likely() to reflect this fact.

you still lack any justification for your statement that NOHZ active is
likely.

It might be likely for your system, but is this true in general?

Thanks,

        tglx