Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Yong Zhang
Suggested-by: Russell King
Suggested-by: Ingo Molna
On 02/27/2012 02:12 PM, Peter Zijlstra wrote:
-extern void enable_sched_clock_irqtime(void);
-extern void disable_sched_clock_irqtime(void);
+extern int sched_clock_irqtime;
+static inline void enable_sched_clock_irqtime(void)
+{
+ if (sched_clock_irqtime == -1)
+ sched_clock
On Mon, 2012-02-20 at 10:04 +0400, Dmitry Antipov wrote:
> Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> ARM, move "noirqtime=" option to common debugging code.
> For a bit of backward compatibility, X86-specific option
> "tsc=noirqtime" is preserved, but issues a warning.
>
> Suggested
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Yong Zhang
Suggested-by: Russell King
Suggested-by: Ingo Molna
* Dmitry Antipov wrote:
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -757,18 +757,20 @@ static DEFINE_PER_CPU(u64, cpu_hardirq_time);
> static DEFINE_PER_CPU(u64, cpu_softirq_time);
>
> static DEFINE_PER_CPU(u64, irq_start_time);
> -static int sched_clock_irqtime;
>
> -void
> + noirqtime [X86,ARM] Used to run time disable
> IRQ_TIME_ACCOUNTING,
> + should give a negligible performance improvement.
Can you reword the above "negligible performance improvement" above to
something
> + noirqtime [X86,ARM] Run time disables I
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Yong Zhang
Suggested-by: Russell King
Acked-by: Venkatesh Pall
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Yong Zhang
Suggested-by: Russell King
Suggested-by: Venki Pall
Cc'ing PeterZ.
On Wed, Feb 08, 2012 at 04:48:34AM -0800, Dmitry Antipov wrote:
> Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> ARM, move "noirqtime=" option to common debugging code.
> For a bit of backward compatibility, "tsc=noirqtime"
> is preserved, but issues a warning.
>
> Sugges
On Wed, Feb 08, 2012 at 01:18:33PM +, Russell King - ARM Linux wrote:
> On Wed, Feb 08, 2012 at 04:48:34AM -0800, Dmitry Antipov wrote:
> > Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> > ARM, move "noirqtime=" option to common debugging code.
> > For a bit of backward compatibility,
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Russell King
Suggested-by: Venki Pallipadi
Signed-off-by: Dmit
On Wed, Feb 8, 2012 at 8:08 AM, Dmitry Antipov
wrote:
> Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> ARM, move "noirqtime=" option to common debugging code.
> For a bit of backward compatibility, X86-specific option
> "tsc=noirqtime" is preserved, but issues a warning.
>
> Suggested-by
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, X86-specific option
"tsc=noirqtime" is preserved, but issues a warning.
Suggested-by: Russell King
Suggested-by: Venki Pallipadi
Signed-off-by: Dmit
On Wed, Feb 08, 2012 at 07:15:26AM -0800, Dmitry Antipov wrote:
> On 02/08/2012 05:18 AM, Russell King - ARM Linux wrote:
>> Why are you placing this here? sched_clock is available from the point
>> that it's registered, which should be before the first sched_clock()
>> call.
>
> This is just beca
On 02/08/2012 05:18 AM, Russell King - ARM Linux wrote:
diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c
index 5416c7c..56d2a9d 100644
--- a/arch/arm/kernel/sched_clock.c
+++ b/arch/arm/kernel/sched_clock.c
@@ -162,5 +162,8 @@ void __init sched_clock_postinit(void)
On Wed, Feb 08, 2012 at 04:48:34AM -0800, Dmitry Antipov wrote:
> Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> ARM, move "noirqtime=" option to common debugging code.
> For a bit of backward compatibility, "tsc=noirqtime"
> is preserved, but issues a warning.
>
> Suggested-by: Venki Pa
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
For a bit of backward compatibility, "tsc=noirqtime"
is preserved, but issues a warning.
Suggested-by: Venki Pallipadi
Signed-off-by: Dmitry Antipov
---
arch/arm/kernel/sched_clock.c |
On Tue, Feb 7, 2012 at 10:06 AM, Dmitry Antipov
wrote:
> Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
> ARM, move "noirqtime=" option to common debugging code.
>
> Signed-off-by: Dmitry Antipov
> ---
> arch/arm/kernel/sched_clock.c | 3 +++
> arch/x86/Kconfig | 11 ---
Generalize CONFIG_IRQ_TIME_ACCOUNTING between X86 and
ARM, move "noirqtime=" option to common debugging code.
Signed-off-by: Dmitry Antipov
---
arch/arm/kernel/sched_clock.c |3 +++
arch/x86/Kconfig | 11 ---
arch/x86/kernel/tsc.c |4
include/linux/sc
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