On Sat, May 02, 2020 at 12:10:50AM +0800, Leo Yan wrote:
> On Fri, May 01, 2020 at 04:26:09PM +0100, Will Deacon wrote:
>
> [...]
>
> > > > > Let me try and understand your particular problem better.
> > > >
> > > > I think the long and short of it is that userspace needs a way to
> > > > conve
On Fri, May 01, 2020 at 04:26:09PM +0100, Will Deacon wrote:
[...]
> > > > Let me try and understand your particular problem better.
> > >
> > > I think the long and short of it is that userspace needs a way to convert
> > > the raw counter cycles into a ns value that can be compared against val
On 2020-05-01 16:14, Leo Yan wrote:
Hi all,
On Thu, Apr 30, 2020 at 05:18:15PM +0100, Will Deacon wrote:
On Thu, Apr 30, 2020 at 06:04:36PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
>
> > I wonder if we could/should make __sched_clock_offset av
On Fri, May 01, 2020 at 11:14:48PM +0800, Leo Yan wrote:
> On Thu, Apr 30, 2020 at 05:18:15PM +0100, Will Deacon wrote:
> > On Thu, Apr 30, 2020 at 06:04:36PM +0200, Peter Zijlstra wrote:
> > > On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
> > >
> > > > I wonder if we could/should
Hi all,
On Thu, Apr 30, 2020 at 05:18:15PM +0100, Will Deacon wrote:
> On Thu, Apr 30, 2020 at 06:04:36PM +0200, Peter Zijlstra wrote:
> > On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
> >
> > > I wonder if we could/should make __sched_clock_offset available even when
> > > CONFIG
On 2020-04-30 17:18, Will Deacon wrote:
On Thu, Apr 30, 2020 at 06:04:36PM +0200, Peter Zijlstra wrote:
On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
> I wonder if we could/should make __sched_clock_offset available even when
> CONFIG_HAVE_UNSTABLE_SCHED_CLOCK isn't defined. It
On Thu, Apr 30, 2020 at 06:27:50PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 30, 2020 at 03:58:24PM +0100, Will Deacon wrote:
> > On Fri, Mar 20, 2020 at 05:35:45PM +0800, Leo Yan wrote:
> > > + /*
> > > + * Since arch timer is enabled ealier than sched clock registration,
> > > + * compuate the
On Thu, Apr 30, 2020 at 03:58:24PM +0100, Will Deacon wrote:
> On Fri, Mar 20, 2020 at 05:35:45PM +0800, Leo Yan wrote:
> > @@ -1164,5 +1165,21 @@ void arch_perf_update_userpage(struct perf_event
> > *event,
> > userpg->time_mult >>= 1;
> > }
> > userpg->time_shift = (u16)shif
On Thu, Apr 30, 2020 at 06:04:36PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
>
> > I wonder if we could/should make __sched_clock_offset available even when
> > CONFIG_HAVE_UNSTABLE_SCHED_CLOCK isn't defined. It feels like it would
> > help with t
On Thu, Apr 30, 2020 at 04:29:23PM +0100, Marc Zyngier wrote:
> I wonder if we could/should make __sched_clock_offset available even when
> CONFIG_HAVE_UNSTABLE_SCHED_CLOCK isn't defined. It feels like it would
> help with this particular can or worm...
Errrgh. __sched_clock_offset is only needed
On 2020-04-30 15:58, Will Deacon wrote:
Hi Leo,
[+Maz and tglx in case I'm barking up the wrong tree]
On Fri, Mar 20, 2020 at 05:35:45PM +0800, Leo Yan wrote:
Between the system powering on and kernel's sched clock registration,
the arch timer usually has been enabled at the early time and its
Hi Leo,
[+Maz and tglx in case I'm barking up the wrong tree]
On Fri, Mar 20, 2020 at 05:35:45PM +0800, Leo Yan wrote:
> Between the system powering on and kernel's sched clock registration,
> the arch timer usually has been enabled at the early time and its
> counter is incremented during the pe
12 matches
Mail list logo
