linux-kernel - Re: [PATCH v3 1/2] cputime: remove duplicate code in account_process

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Date:   Tue, 23 Jul 2019 14:10:09 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Wanpeng Li <wanpeng.li@...mail.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] cputime: remove duplicate code in
 account_process_tick


Forget this patchset. I sent out a new 3 patches.

Thanks
Alex


在 2019/7/22 下午3:38, Alex Shi 写道:
> The irqtime_account_process_tick path was introduced for precise ns irq
> time account from commit abb74cefa9c6 ("sched: Export ns irqtimes
> through /proc/stat") while account_process_tick still use jiffes. This
> divide isn't necessary especially now both paths are ns precison.
> 
> Move out the irqtime_account_process_tick func from IRQ_TIME_ACCOUNTING.
> So it do generally same things as account_process_tick whenever if
> IRQ_TIME_ACCOUNTING set or if sched_clock_irqtime enabled.