linux-kernel - Re: [RFC 06/13] perf kwork: Implement perf kwork report

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Message-ID: <2953080a-a1bd-0a1c-8466-96c4b58de2e6@huawei.com>
Date:   Wed, 15 Jun 2022 11:12:16 +0800
From:   Yang Jihong <yangjihong1@...wei.com>
To:     Namhyung Kim <namhyung@...nel.org>
CC:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-perf-users <linux-perf-users@...r.kernel.org>
Subject: Re: [RFC 06/13] perf kwork: Implement perf kwork report

Hello,

On 2022/6/15 5:49, Namhyung Kim wrote:
> On Mon, Jun 13, 2022 at 2:48 AM Yang Jihong <yangjihong1@...wei.com> wrote:
>>
>> Implements framework of perf kwork report, which is used to report time
>> properties such as run time and frequency:
>>
>> test case:
>>
>>    Kwork Name                | Cpu  | Avg delay     | Frequency | Max delay     | Max delay start     | Max delay end       |
>>   ---------------------------------------------------------------------------------------------------------------------------
>>   ---------------------------------------------------------------------------------------------------------------------------
>>
>> Since there are no report supported events, the output is empty.
>>
>> Briefly describe the data structure:
>> 1. "class" indicates event type. For example, irq and softiq correspond
>> to different types.
>> 2. "cluster" refers to a specific event corresponding to a type. For
>> example, RCU and TIMER in softirq correspond to different clusters,
>> which contains three types of events: raise, entry, and exit.
> 
> I'm not good at naming but how about calling it "work" instead?
> It's all about kernel works anyway..
> 
How about calling it "work_atoms" ?
Otherwise, "work" feels a little similar to kwork_class in the first step.

Thanks,
Jihong

.