linux-kernel - Re: [PATCH V3 3/3] perf test: Support the retire

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Message-ID: <30bc05e4-a479-ad53-22b1-4afca4fa7ec2@linux.intel.com>
Date:   Mon, 6 Feb 2023 10:49:02 -0500
From:   "Liang, Kan" <kan.liang@...ux.intel.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        eranian@...gle.com, irogers@...gle.com
Subject: Re: [PATCH V3 3/3] perf test: Support the retire_lat check



On 2023-02-06 10:34 a.m., Arnaldo Carvalho de Melo wrote:
> Em Mon, Feb 06, 2023 at 12:32:54PM -0300, Arnaldo Carvalho de Melo escreveu:
>> Em Mon, Feb 06, 2023 at 10:17:46AM -0500, Liang, Kan escreveu:
>>>
>>>
>>> On 2023-02-06 10:01 a.m., Arnaldo Carvalho de Melo wrote:
>>>> Em Thu, Feb 02, 2023 at 11:22:09AM -0800, kan.liang@...ux.intel.com escreveu:
>>>>> From: Kan Liang <kan.liang@...ux.intel.com>
>>>>>
>>>>> Add test for the new field for Retire Latency in the X86 specific test.
>>>>
>>>> Is this passing 'perf test' for you?
>>>
>>> Ah, it should be the original V2 missed the below change.
>>
>> Can you please send this as a separate patch as I already merged
>> torvalds/master and added more csets on top, so to just fix it and
>> force push now would be bad.
>>
>> Please use what is in my perf/core branch and add a Fixes for that v2
>> patch.
> 
> BTW, the 3rd patch with the test is already on the tmp.perf/core branch,
> that will move to perf/core after the next round of container build
> tests.
> 

Thanks. I will sent a V4 to fix the 'perf test' issue.

Thanks,
Kan
> - Arnaldo
>  
>> Thanks,
>>
>> - Arnaldo
>>  
>>> @@ -100,5 +101,25 @@ void arch_perf_synthesize_sample_weight(const
>>> struct perf_sample *data,
>>>  	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
>>>  		*array &= 0xffffffff;
>>>  		*array |= ((u64)data->ins_lat << 32);
>>> +		*array |= ((u64)data->retire_lat << 48);
>>>  	}
>>>  }
>>>
>>> Could you please remove the V2 and re-apply the V3?
>>  
>>> $ sudo ./perf test -v "x86 sample parsing"
>>>  74: x86 Sample parsing                                              :
>>> --- start ---
>>> test child forked, pid 3316797
>>> test child finished with 0
>>> ---- end ----
>>> x86 Sample parsing: Ok
>>>
>>>
>>> Thanks,
>>> Kan
>>>
>>>>
>>>> [root@...co ~]# perf test -v "x86 sample parsing"
>>>>  74: x86 Sample parsing                                              :
>>>> --- start ---
>>>> test child forked, pid 72526
>>>> Samples differ at 'retire_lat'
>>>> parsing failed for sample_type 0x1000000
>>>> test child finished with -1
>>>> ---- end ----
>>>> x86 Sample parsing: FAILED!
>>>> [root@...co ~]#
>>>>
>>>> - Arnaldo
>>>>  
>>>>> Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
>>>>> ---
>>>>>
>>>>> New patch since V2
>>>>>
>>>>>  tools/perf/arch/x86/tests/sample-parsing.c | 5 ++++-
>>>>>  1 file changed, 4 insertions(+), 1 deletion(-)
>>>>>
>>>>> diff --git a/tools/perf/arch/x86/tests/sample-parsing.c b/tools/perf/arch/x86/tests/sample-parsing.c
>>>>> index 690c7c07e90d..a061e8619267 100644
>>>>> --- a/tools/perf/arch/x86/tests/sample-parsing.c
>>>>> +++ b/tools/perf/arch/x86/tests/sample-parsing.c
>>>>> @@ -27,8 +27,10 @@ static bool samples_same(const struct perf_sample *s1,
>>>>>  			 const struct perf_sample *s2,
>>>>>  			 u64 type)
>>>>>  {
>>>>> -	if (type & PERF_SAMPLE_WEIGHT_STRUCT)
>>>>> +	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
>>>>>  		COMP(ins_lat);
>>>>> +		COMP(retire_lat);
>>>>> +	}
>>>>>  
>>>>>  	return true;
>>>>>  }
>>>>> @@ -48,6 +50,7 @@ static int do_test(u64 sample_type)
>>>>>  	struct perf_sample sample = {
>>>>>  		.weight		= 101,
>>>>>  		.ins_lat        = 102,
>>>>> +		.retire_lat     = 103,
>>>>>  	};
>>>>>  	struct perf_sample sample_out;
>>>>>  	size_t i, sz, bufsz;
>>>>> -- 
>>>>> 2.35.1
>>>>>
>>>>
>>
>> -- 
>>
>> - Arnaldo
>