linux-kernel - Re: [PATCH V3 0/4] tools: perf: Add JSON metrics for i.MX8M platforms

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Message-ID: <6e2fab9a-ba7b-98b6-69c1-cc19e8c32ea4@huawei.com>
Date:   Tue, 6 Jul 2021 13:41:45 +0100
From:   John Garry <john.garry@...wei.com>
To:     Joakim Zhang <qiangqing.zhang@....com>,
        "will@...nel.org" <will@...nel.org>,
        "mathieu.poirier@...aro.org" <mathieu.poirier@...aro.org>,
        "leo.yan@...aro.org" <leo.yan@...aro.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "acme@...nel.org" <acme@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "alexander.shishkin@...ux.intel.com" 
        <alexander.shishkin@...ux.intel.com>,
        "jolsa@...hat.com" <jolsa@...hat.com>,
        "namhyung@...nel.org" <namhyung@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
CC:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "kjain@...ux.ibm.com" <kjain@...ux.ibm.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3 0/4] tools: perf: Add JSON metrics for i.MX8M platforms

On 06/07/2021 13:28, Joakim Zhang wrote:
>> right?
>>
>> Right, just userspace perf tool needs rebuild. Same kernel which you used
>> before should be ok.
> Hi John,
> 
> Test env:
> perf version 5.13.rc7.gf9a8701c7091
> 5.13.0-rc1-next-20210514
> 
> I tested on i.MX8MQ, i.MX8MM and i.MX8MP, there is no function breakage, but I have not verified metric includes "duration_time" event.
> 

ok, I appreciate that.

 > but I have not verified metric includes "duration_time" event.

I didn't think that any imx8 metrics included duration_time. Anyway, 
I'll ensure that metrics which contain "duration_time" would not break.

> A nitpick, there is no comma at the end of "Unit".

I'll check it.

Thanks a lot,
John