Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-08 Thread Liang, Kan
On 2/6/2021 3:09 AM, Namhyung Kim wrote: On Fri, Feb 5, 2021 at 11:38 PM Liang, Kan wrote: On 2/5/2021 6:08 AM, Namhyung Kim wrote: On Wed, Feb 3, 2021 at 5:14 AM wrote: From: Kan Liang The instruction latency information can be recorded on some platforms, e.g., the Intel Sapphire

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-07 Thread Athira Rajeev
> On 05-Feb-2021, at 8:21 PM, Liang, Kan wrote: > > > > On 2/5/2021 7:55 AM, Athira Rajeev wrote: Because in other archs, the var2_w of ‘perf_sample_weight’ could be used to capture something else than the Local INSTR Latency. Can we have some weak function to populate the

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-06 Thread Namhyung Kim
On Fri, Feb 5, 2021 at 11:38 PM Liang, Kan wrote: > > On 2/5/2021 6:08 AM, Namhyung Kim wrote: > > On Wed, Feb 3, 2021 at 5:14 AM wrote: > >> > >> From: Kan Liang > >> > >> The instruction latency information can be recorded on some platforms, > >> e.g., the Intel Sapphire Rapids server. With

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-05 Thread Athira Rajeev
> On 04-Feb-2021, at 8:49 PM, Liang, Kan wrote: > > > > On 2/4/2021 8:11 AM, Athira Rajeev wrote: >>> On 03-Feb-2021, at 1:39 AM, kan.li...@linux.intel.com wrote: >>> >>> From: Kan Liang >>> >>> The instruction latency information can be recorded on some platforms, >>> e.g., the Intel

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-05 Thread Liang, Kan
On 2/5/2021 7:55 AM, Athira Rajeev wrote: Because in other archs, the var2_w of ‘perf_sample_weight’ could be used to capture something else than the Local INSTR Latency. Can we have some weak function to populate the header string ? I agree that the var2_w has different meanings among

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-05 Thread Liang, Kan
On 2/5/2021 6:08 AM, Namhyung Kim wrote: On Wed, Feb 3, 2021 at 5:14 AM wrote: From: Kan Liang The instruction latency information can be recorded on some platforms, e.g., the Intel Sapphire Rapids server. With both memory latency (weight) and the new instruction latency information,

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-05 Thread Namhyung Kim
On Wed, Feb 3, 2021 at 5:14 AM wrote: > > From: Kan Liang > > The instruction latency information can be recorded on some platforms, > e.g., the Intel Sapphire Rapids server. With both memory latency > (weight) and the new instruction latency information, users can easily > locate the expensive

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-04 Thread Liang, Kan
On 2/4/2021 8:11 AM, Athira Rajeev wrote: On 03-Feb-2021, at 1:39 AM, kan.li...@linux.intel.com wrote: From: Kan Liang The instruction latency information can be recorded on some platforms, e.g., the Intel Sapphire Rapids server. With both memory latency (weight) and the new instruction

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-04 Thread Athira Rajeev
> On 03-Feb-2021, at 1:39 AM, kan.li...@linux.intel.com wrote: > > From: Kan Liang > > The instruction latency information can be recorded on some platforms, > e.g., the Intel Sapphire Rapids server. With both memory latency > (weight) and the new instruction latency information, users can

Re: [PATCH 6/9] perf report: Support instruction latency

2021-02-03 Thread Arnaldo Carvalho de Melo
Em Tue, Feb 02, 2021 at 12:09:10PM -0800, kan.li...@linux.intel.com escreveu: > From: Kan Liang > > The instruction latency information can be recorded on some platforms, > e.g., the Intel Sapphire Rapids server. With both memory latency > (weight) and the new instruction latency information,