Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Li, Aubrey
On 2019/2/12 19:55, Thomas Gleixner wrote: > On Tue, 12 Feb 2019, Li, Aubrey wrote: >> On 2019/2/12 19:19, Thomas Gleixner wrote: >>> On Tue, 12 Feb 2019, Li, Aubrey wrote: On 2019/2/12 16:22, Thomas Gleixner wrote: > On Tue, 12 Feb 2019, Aubrey Li wrote: >> diff --git a/arch/x86/inclu

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Thomas Gleixner
On Tue, 12 Feb 2019, Li, Aubrey wrote: > On 2019/2/12 19:19, Thomas Gleixner wrote: > > On Tue, 12 Feb 2019, Li, Aubrey wrote: > >> On 2019/2/12 16:22, Thomas Gleixner wrote: > >>> On Tue, 12 Feb 2019, Aubrey Li wrote: > diff --git a/arch/x86/include/asm/processor.h > b/arch/x86/include/

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Li, Aubrey
On 2019/2/12 19:27, Thomas Gleixner wrote: > On Tue, 12 Feb 2019, Li, Aubrey wrote: >> $ find . -name *.h | xargs grep arch_irq_stat >> ./arch/arm64/include/asm/hardirq.h:#define arch_irq_stat_cpu smp_irq_stat_cpu >> ./arch/arm/include/asm/hardirq.h:#define arch_irq_stat_cpu smp_irq_stat_cpu >> .

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Li, Aubrey
On 2019/2/12 19:19, Thomas Gleixner wrote: > On Tue, 12 Feb 2019, Li, Aubrey wrote: >> On 2019/2/12 16:22, Thomas Gleixner wrote: >>> On Tue, 12 Feb 2019, Aubrey Li wrote: diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index d53c54b842da..60ee932070

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Thomas Gleixner
On Tue, 12 Feb 2019, Li, Aubrey wrote: > $ find . -name *.h | xargs grep arch_irq_stat > ./arch/arm64/include/asm/hardirq.h:#define arch_irq_stat_cpu smp_irq_stat_cpu > ./arch/arm/include/asm/hardirq.h:#define arch_irq_stat_cpusmp_irq_stat_cpu > ./arch/x86/include/asm/hardirq.h:extern u64 arch

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Thomas Gleixner
On Tue, 12 Feb 2019, Li, Aubrey wrote: > On 2019/2/12 16:22, Thomas Gleixner wrote: > > On Tue, 12 Feb 2019, Aubrey Li wrote: > >> diff --git a/arch/x86/include/asm/processor.h > >> b/arch/x86/include/asm/processor.h > >> index d53c54b842da..60ee932070fe 100644 > >> --- a/arch/x86/include/asm/proc

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Li, Aubrey
On 2019/2/12 17:14, Li, Aubrey wrote: > On 2019/2/12 16:22, Thomas Gleixner wrote: >> On Tue, 12 Feb 2019, Aubrey Li wrote: >>> diff --git a/arch/x86/include/asm/processor.h >>> b/arch/x86/include/asm/processor.h >>> index d53c54b842da..60ee932070fe 100644 >>> --- a/arch/x86/include/asm/processor.

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Li, Aubrey
On 2019/2/12 16:22, Thomas Gleixner wrote: > On Tue, 12 Feb 2019, Aubrey Li wrote: >> diff --git a/arch/x86/include/asm/processor.h >> b/arch/x86/include/asm/processor.h >> index d53c54b842da..60ee932070fe 100644 >> --- a/arch/x86/include/asm/processor.h >> +++ b/arch/x86/include/asm/processor.h >

Re: [PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-12 Thread Thomas Gleixner
On Tue, 12 Feb 2019, Aubrey Li wrote: > diff --git a/arch/x86/include/asm/processor.h > b/arch/x86/include/asm/processor.h > index d53c54b842da..60ee932070fe 100644 > --- a/arch/x86/include/asm/processor.h > +++ b/arch/x86/include/asm/processor.h > @@ -996,5 +996,7 @@ enum l1tf_mitigations { > };

[PATCH v9 2/3] x86,/proc/pid/status: Add AVX-512 usage elapsed time

2019-02-11 Thread Aubrey Li
AVX-512 components use could cause core turbo frequency drop. So it's useful to expose AVX-512 usage elapsed time as a heuristic hint for the user space job scheduler to cluster the AVX-512 using tasks together. Example: $ cat /proc/pid/status | grep AVX512_elapsed_ms AVX512_elapsed_ms: 1020