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

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Message-ID: <Y+Ed7823ZSXevwA6@kernel.org>
Date:   Mon, 6 Feb 2023 12:34:07 -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 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.

- 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

-- 

- Arnaldo