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

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Message-ID: <Y+EdposucD4mWp6S@kernel.org>
Date:   Mon, 6 Feb 2023 12:32:54 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     "Liang, Kan" <kan.liang@...ux.intel.com>
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

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.

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