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Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer
Date 2017-06-13 11:20 +0200
Message-ID <tRQ9r-68v-7@gated-at.bofh.it> (permalink)
References <tRiAN-1GW-3@gated-at.bofh.it> <tRiAO-1GW-13@gated-at.bofh.it> <tRwX8-2bL-17@gated-at.bofh.it>
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On Mon, Jun 12, 2017 at 2:41 PM, Jonas Jensen <jonas.jensen@gmail.com> wrote:

> I stumbled upon boot time savings (going from next-20170518 to
> next-20170609) which seem to shave off more than a second ([1]
> compared to [2]) so I also booted without patches ([3]).
> There seems to be improvement when these patches are applied.

Oh yes, using delay timers saves us the loop calibration time.

Actually I should mention that, it's pretty nice.

Thanks for testing!

Yours,
Linus Walleij

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Thread

[PATCH 1/2] drivers/clocksource/fttmr010: Optimize sched_clock() Linus Walleij <linus.walleij@linaro.org> - 2017-06-11 23:30 +0200
  [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer Linus Walleij <linus.walleij@linaro.org> - 2017-06-11 23:30 +0200
    Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-06-12 09:40 +0200
    Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer Jonas Jensen <jonas.jensen@gmail.com> - 2017-06-12 14:50 +0200
      Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer Linus Walleij <linus.walleij@linaro.org> - 2017-06-13 11:20 +0200
    Re: [PATCH 2/2] drivers/clocksource/fttmr010: Implement delay timer Andrew Jeffery <andrew@aj.id.au> - 2017-06-13 08:20 +0200

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