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Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for integer scales

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for integer scales
Date 2016-05-07 21:30 +0200
Message-ID <rwg5k-7CS-13@gated-at.bofh.it> (permalink)
References <rvAz7-1bh-5@gated-at.bofh.it> <rvAz8-1bh-25@gated-at.bofh.it> <rwfVE-7th-15@gated-at.bofh.it>
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> >  	if (csv_output) {
> > -		fmt = sc != 1.0 ?  "%.2f%s" : "%.0f%s";
> > +		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
> >  	} else {
> >  		if (big_num)
> > -			fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
> > +			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
> >  		else
> > -			fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
> > +			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
> 
> how about the rest of the code? we display % also in print_running
> and print_noise_pct functions and maybe some place else

For those it doesn't matter. In fact it's probably better there
to always show the fractions.

It is just confusing for metrics.

-Andi

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Thread

Add top down metrics to perf stat Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
  [PATCH 05/10] x86, perf: Use new topology_max_smt_threads() in HT leak workaround Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
  [PATCH 10/10] perf, tools, stat: Add extra output of counter values with -vv Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
    Re: [PATCH 10/10] perf, tools, stat: Add extra output of counter  values with -vv Jiri Olsa <jolsa@redhat.com> - 2016-05-12 10:10 +0200
  [PATCH 07/10] perf, tools, stat: Scale values by unit before metrics Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
    Re: [PATCH 07/10] perf, tools, stat: Scale values by unit before  metrics Jiri Olsa <jolsa@redhat.com> - 2016-05-07 21:20 +0200
    [tip:perf/core] perf stat: Scale values by unit before metrics tip-bot for Andi Kleen <tipbot@zytor.com> - 2016-05-10 22:40 +0200
  [PATCH 09/10] perf, tools, stat: Add computation of TopDown formulas Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
  [PATCH 04/10] x86, perf: Add Top Down events to Intel Atom Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
  [PATCH 06/10] perf, tools, stat: Avoid fractional digits for integer scales Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
    Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for  integer scales Jiri Olsa <jolsa@redhat.com> - 2016-05-07 21:20 +0200
      Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for  integer scales Andi Kleen <andi@firstfloor.org> - 2016-05-07 21:30 +0200
        Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for  integer scales Jiri Olsa <jolsa@redhat.com> - 2016-05-11 15:10 +0200
          Re: [PATCH 06/10] perf, tools, stat: Avoid fractional digits for  integer scales Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-11 18:50 +0200
  [PATCH 02/10] x86, perf: Support sysfs files depending on SMT status Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
    Re: [PATCH 02/10] x86, perf: Support sysfs files depending on SMT  status Peter Zijlstra <peterz@infradead.org> - 2016-05-09 11:50 +0200
      Re: [PATCH 02/10] x86, perf: Support sysfs files depending on SMT  status Andi Kleen <ak@linux.intel.com> - 2016-05-09 16:30 +0200
        Re: [PATCH 02/10] x86, perf: Support sysfs files depending on SMT  status Peter Zijlstra <peterz@infradead.org> - 2016-05-09 16:40 +0200
    Re: [PATCH 02/10] x86, perf: Support sysfs files depending on SMT  status Ingo Molnar <mingo@kernel.org> - 2016-05-12 10:10 +0200
  [PATCH 03/10] x86, perf: Add Top Down events to Intel Core Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
    Re: [PATCH 03/10] x86, perf: Add Top Down events to Intel Core Peter Zijlstra <peterz@infradead.org> - 2016-05-11 15:30 +0200
    Re: [PATCH 03/10] x86, perf: Add Top Down events to Intel Core Jiri Olsa <jolsa@redhat.com> - 2016-05-11 15:30 +0200
    Re: [PATCH 03/10] x86, perf: Add Top Down events to Intel Core Ingo Molnar <mingo@kernel.org> - 2016-05-12 10:20 +0200
  [PATCH 08/10] perf, tools, stat: Basic support for TopDown in perf stat Andi Kleen <andi@firstfloor.org> - 2016-05-06 01:10 +0200
  Re: Add top down metrics to perf stat Jiri Olsa <jolsa@redhat.com> - 2016-05-12 09:50 +0200

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