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Groups > linux.kernel > #1429578
| From | Zhaoyang Huang <zhaoyang.huang@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length |
| Date | 2016-06-23 10:40 +0200 |
| Message-ID | <rN8l3-7kx-3@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <rLW2B-1ya-1@gated-at.bofh.it> <rMGIa-6js-17@gated-at.bofh.it> <rN6VY-6xV-17@gated-at.bofh.it> <rN7fj-6FF-7@gated-at.bofh.it> <rN8bn-7gE-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 23 June 2016 at 16:18, Thomas Gleixner <tglx@linutronix.de> wrote: > On Thu, 23 Jun 2016, Zhaoyang Huang wrote: >> On 23 June 2016 at 15:01, Thomas Gleixner <tglx@linutronix.de> wrote: >> Thomas, I agree with you, I have discussed the modification with the >> call back owner. However, I wonder if we can make the idle's framework >> to be more precised without the assumption of short CPU_PM_ENTER >> callbacks. Thank you! > > What's the point? To help people who put insanities into the idle code path? > > Thanks, > > tglx > Hi, Thomas. If the entry,exit,min time of one idle state sums up to 500us in some platform, the 100us callback which should be common as caused by cache miss would also generate 20% imprecision. Don't you think it is a case we should deal with?
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[RESEND PATCH v2 1/2] power/cpuidle: enhance the precision of state select Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-17 11:20 +0200
[RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-17 11:20 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-17 11:30 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-17 13:20 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-17 14:00 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-20 03:20 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-22 05:10 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-23 09:10 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-23 09:30 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-23 10:30 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-23 10:40 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-23 10:50 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Thomas Gleixner <tglx@linutronix.de> - 2016-06-23 12:20 +0200
Re: [RESEND PATCH v2 2/2] power/idle: enhance the precision of sleep_length Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-23 10:40 +0200
Re: [RESEND PATCH v2 1/2] power/cpuidle: enhance the precision of state select "Rafael J. Wysocki" <rafael@kernel.org> - 2016-06-25 03:10 +0200
Re: [RESEND PATCH v2 1/2] power/cpuidle: enhance the precision of state select Zhaoyang Huang <zhaoyang.huang@linaro.org> - 2016-06-27 03:20 +0200
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