linux-kernel - Re: [PATCH v6 0/6] perf report/script: Support percent and multiple range in --time option

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Date:   Fri, 10 Nov 2017 21:18:29 +0800
From:   "Jin, Yao" <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v6 0/6] perf report/script: Support percent and multiple
 range in --time option



On 11/6/2017 8:21 PM, Jin Yao wrote:
> v6:
> ---
> 1. Create a new option "--timestamp-boundary" in perf record.
>     
>     Currently '--buildid-all' is not enabled by default. So the walking
>     on all samples is the default operation. There is no big overhead
>     to calculate the timestamp boundary in process_sample_event handler
>     once we already go through all samples. So the timestamp boundary
>     calculation is enabled by default when '--buildid-all' is not enabled.
> 
>     While if '--buildid-all' is enabled, we creates a new option
>     "--timestamp-boundary" for user to decide if it enables the
>     timestamp boundary calculation.
> 
>     Impacted patch:
>     ---------------
>     perf record: Get the first sample time and last sample time
> 
> 2. Fix the merge issue with the latest perf/core branch.
>     No functional changes.
> 
>     Impacted patch:
>     ---------------
>     perf report: support time percent and multiple time ranges
>     perf script: support time percent and multiple time ranges
> 

Hi Arnaldo,

Is the v6 acceptable or I need to continue improving?

I'd like to continue improving the patch if it's needed.

Thanks
Jin Yao