From: Ladislav Michl <ladis@linux-mips.org> To: Vincent Guittot <vincent.guittot@linaro.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org>, Tony Lindgren <tony@atomide.com>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>, Ulf Hansson <ulf.hansson@linaro.org>, "open list:THERMAL" <linux-pm@vger.kernel.org>, linux-kernel <linux-kernel@vger.kernel.org>, LAK <linux-arm-kernel@lists.infradead.org>, Linux OMAP Mailing List <linux-omap@vger.kernel.org> Subject: Re: Regression in v5.0-rc1 with autosuspend hrtimers Date: Thu, 10 Jan 2019 08:54:44 +0100 [thread overview] Message-ID: <20190110075444.GA26920@lenoch> (raw) In-Reply-To: <CAKfTPtA53BS0MTW7SaiC7B+KsGmWCiUJW+PzT57CUN5YpGN5vA@mail.gmail.com> On Thu, Jan 10, 2019 at 08:50:14AM +0100, Vincent Guittot wrote: > On Thu, 10 Jan 2019 at 08:46, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > On Wed, Jan 09, 2019 at 11:06:34PM +0100, Rafael J. Wysocki wrote: > > > On Wed, Jan 9, 2019 at 7:05 PM Vincent Guittot > > > <vincent.guittot@linaro.org> wrote: > > > > > > > > On Wed, 9 Jan 2019 at 18:26, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > > On Wed, Jan 09, 2019 at 05:32:31PM +0100, Vincent Guittot wrote: > > > > > > On Wed, 9 Jan 2019 at 17:07, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > > > > > > On Wed, Jan 09, 2019 at 03:12:25PM +0100, Vincent Guittot wrote: > > > > > > > > Please keep all thread list when replying :-) > > > > > > > > > > > > > > Ahh, sorry for that... > > > > > > > [snip] > > > > > > > > On Wed, 9 Jan 2019 at 14:33, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > I agree, but it doea all the magic correctly, so you won't need > > > > > > > > > to touch that code is ktime_t changes (I know, unlikely..) > > > > > > > > > > > > > > > > But the current implementation doesn't care of any changes in ktime_t > > > > > > > > as it uses raw ns > > > > > > > > > > > > > > Fair enough, so let's go back to: > > > > > > > > > > > > This one looks good for me > > > > > > > > > > Lets split is for 'comments fix' patch, which was just send and 'the rest'. > > > > > Now, 'the rest' can either be v2 of your "PM/runtime: Fix autosuspend_delay on > > > > > 32bits arch" or will wait for 5.1. You decide :) > > > > > > > > I don't really mind. > > > > > > > > Rafael, > > > > Do you prefer to only take the fix for u64 casting problem or do you > > > > prefer to also take the optimization below in one single patch ? > > > > > > The casting problem is a bug and the optimization is next release > > > material in my view. Please send the optimization separately. > > > > Ok, will send that separately in a few moments... > > Btw, u64 casting problem seems to be still present in rpm_suspend while > > computing slack for autosuspend delay greater than 25% of 2^31 (2^33) ns. > > Good point. I will add it to the fix as well Another nit then, for (u64)(autosuspend_delay) is (u64)autosuspend_delay enough :) I'll wait for your v2 before sending optimization patch. > > Not sure if that triggers any real bug.
WARNING: multiple messages have this Message-ID (diff)
From: Ladislav Michl <ladis@linux-mips.org> To: Vincent Guittot <vincent.guittot@linaro.org> Cc: Ulf Hansson <ulf.hansson@linaro.org>, "open list:THERMAL" <linux-pm@vger.kernel.org>, Tony Lindgren <tony@atomide.com>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>, linux-kernel <linux-kernel@vger.kernel.org>, "Rafael J. Wysocki" <rafael@kernel.org>, Linux OMAP Mailing List <linux-omap@vger.kernel.org>, LAK <linux-arm-kernel@lists.infradead.org> Subject: Re: Regression in v5.0-rc1 with autosuspend hrtimers Date: Thu, 10 Jan 2019 08:54:44 +0100 [thread overview] Message-ID: <20190110075444.GA26920@lenoch> (raw) In-Reply-To: <CAKfTPtA53BS0MTW7SaiC7B+KsGmWCiUJW+PzT57CUN5YpGN5vA@mail.gmail.com> On Thu, Jan 10, 2019 at 08:50:14AM +0100, Vincent Guittot wrote: > On Thu, 10 Jan 2019 at 08:46, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > On Wed, Jan 09, 2019 at 11:06:34PM +0100, Rafael J. Wysocki wrote: > > > On Wed, Jan 9, 2019 at 7:05 PM Vincent Guittot > > > <vincent.guittot@linaro.org> wrote: > > > > > > > > On Wed, 9 Jan 2019 at 18:26, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > > On Wed, Jan 09, 2019 at 05:32:31PM +0100, Vincent Guittot wrote: > > > > > > On Wed, 9 Jan 2019 at 17:07, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > > > > > > On Wed, Jan 09, 2019 at 03:12:25PM +0100, Vincent Guittot wrote: > > > > > > > > Please keep all thread list when replying :-) > > > > > > > > > > > > > > Ahh, sorry for that... > > > > > > > [snip] > > > > > > > > On Wed, 9 Jan 2019 at 14:33, Ladislav Michl <ladis@linux-mips.org> wrote: > > > > > > > > > I agree, but it doea all the magic correctly, so you won't need > > > > > > > > > to touch that code is ktime_t changes (I know, unlikely..) > > > > > > > > > > > > > > > > But the current implementation doesn't care of any changes in ktime_t > > > > > > > > as it uses raw ns > > > > > > > > > > > > > > Fair enough, so let's go back to: > > > > > > > > > > > > This one looks good for me > > > > > > > > > > Lets split is for 'comments fix' patch, which was just send and 'the rest'. > > > > > Now, 'the rest' can either be v2 of your "PM/runtime: Fix autosuspend_delay on > > > > > 32bits arch" or will wait for 5.1. You decide :) > > > > > > > > I don't really mind. > > > > > > > > Rafael, > > > > Do you prefer to only take the fix for u64 casting problem or do you > > > > prefer to also take the optimization below in one single patch ? > > > > > > The casting problem is a bug and the optimization is next release > > > material in my view. Please send the optimization separately. > > > > Ok, will send that separately in a few moments... > > Btw, u64 casting problem seems to be still present in rpm_suspend while > > computing slack for autosuspend delay greater than 25% of 2^31 (2^33) ns. > > Good point. I will add it to the fix as well Another nit then, for (u64)(autosuspend_delay) is (u64)autosuspend_delay enough :) I'll wait for your v2 before sending optimization patch. > > Not sure if that triggers any real bug. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-01-10 7:54 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-07 23:38 Regression in v5.0-rc1 with autosuspend hrtimers Tony Lindgren 2019-01-07 23:38 ` Tony Lindgren 2019-01-08 7:59 ` Vincent Guittot 2019-01-08 7:59 ` Vincent Guittot 2019-01-08 15:53 ` Tony Lindgren 2019-01-08 15:53 ` Tony Lindgren 2019-01-08 16:42 ` Vincent Guittot 2019-01-08 16:42 ` Vincent Guittot 2019-01-08 21:37 ` Tony Lindgren 2019-01-08 21:37 ` Tony Lindgren 2019-01-09 1:42 ` Vincent Guittot 2019-01-09 1:42 ` Vincent Guittot 2019-01-09 1:51 ` Tony Lindgren 2019-01-09 1:51 ` Tony Lindgren 2019-01-09 9:43 ` Rafael J. Wysocki 2019-01-09 9:43 ` Rafael J. Wysocki 2019-01-09 16:28 ` Tony Lindgren 2019-01-09 16:28 ` Tony Lindgren 2019-01-09 16:48 ` Vincent Guittot 2019-01-09 16:48 ` Vincent Guittot 2019-01-09 16:50 ` Tony Lindgren 2019-01-09 16:50 ` Tony Lindgren 2019-01-09 16:55 ` Vincent Guittot 2019-01-09 16:55 ` Vincent Guittot 2019-01-09 17:02 ` Tony Lindgren 2019-01-09 17:02 ` Tony Lindgren 2019-01-09 11:17 ` Ladislav Michl 2019-01-09 11:17 ` Ladislav Michl 2019-01-09 11:27 ` Vincent Guittot 2019-01-09 11:27 ` Vincent Guittot [not found] ` <20190109115824.GA1353@lenoch> 2019-01-09 13:24 ` Vincent Guittot 2019-01-09 13:24 ` Vincent Guittot [not found] ` <20190109133337.GA13579@lenoch> 2019-01-09 14:12 ` Vincent Guittot 2019-01-09 14:12 ` Vincent Guittot 2019-01-09 16:07 ` Ladislav Michl 2019-01-09 16:07 ` Ladislav Michl 2019-01-09 16:32 ` Vincent Guittot 2019-01-09 16:32 ` Vincent Guittot 2019-01-09 17:26 ` Ladislav Michl 2019-01-09 17:26 ` Ladislav Michl 2019-01-09 18:04 ` Vincent Guittot 2019-01-09 18:04 ` Vincent Guittot 2019-01-09 22:06 ` Rafael J. Wysocki 2019-01-09 22:06 ` Rafael J. Wysocki 2019-01-10 7:45 ` Ladislav Michl 2019-01-10 7:45 ` Ladislav Michl 2019-01-10 7:50 ` Vincent Guittot 2019-01-10 7:50 ` Vincent Guittot 2019-01-10 7:54 ` Ladislav Michl [this message] 2019-01-10 7:54 ` Ladislav Michl
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