linux-kernel - Re: [PATCH] perf tools: Force uncore events to system wide monitoring

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Date:   Mon, 27 Feb 2017 10:44:13 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Adrian Hunter <adrian.hunter@...el.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, David Ahern <dsahern@...il.com>
Subject: Re: [PATCH] perf tools: Force uncore events to system wide monitoring

On Mon, Feb 27, 2017 at 10:28:59AM +0100, Jiri Olsa wrote:
> would you mind testing new version?

Looks ok to me.

Thanks.

[boris@pd: ~/kernel/linux/tools/perf> ./perf stat -v -e amd_nb/event=0xe0,umask=0x1f/ sleep 1
Using CPUID AuthenticAMD-21-2
amd_nb/event=0xe0,umask=0x1f/: 977574 1002133816 1002133816

 Performance counter stats for 'system wide':

           977,574      amd_nb/event=0xe0,umask=0x1f/                                   

       1.002162083 seconds time elapsed

[boris@pd: ~/kernel/linux/tools/perf> ./perf stat -v -e amd_nb/event=0xe0,umask=0x1f/,cycles sleep 1
Using CPUID AuthenticAMD-21-2
Warning:
amd_nb/event=0xe0,umask=0x1f/ event is not supported by the kernel.
failed to read counter amd_nb/event=0xe0,umask=0x1f/
amd_nb/event=0xe0,umask=0x1f/: 0 0 0
cycles: 1132814 754123 754123

 Performance counter stats for 'sleep 1':

   <not supported>      amd_nb/event=0xe0,umask=0x1f/                                   
         1,132,814      cycles                                                      

       1.001673257 seconds time elapsed

[boris@pd: ~/kernel/linux/tools/perf> ./perf stat -v -e amd_nb/event=0xe0,umask=0x1f/,amd_nb/event=0xe1,umask=0x3/ sleep 1
Using CPUID AuthenticAMD-21-2
amd_nb/event=0xe0,umask=0x1f/: 1002677 1001767669 1001767669
amd_nb/event=0xe1,umask=0x3/: 0 1001764647 1001764647

 Performance counter stats for 'system wide':

         1,002,677      amd_nb/event=0xe0,umask=0x1f/                                   
                 0      amd_nb/event=0xe1,umask=0x3/                                   

       1.001811216 seconds time elapsed

[boris@pd: ~/kernel/linux/tools/perf> ./perf stat -v -e amd_nb/event=0xe0,umask=0x1f/,amd_nb/event=0xe1,umask=0x3/,amd_nb/event=0xe2,umask=0x3/ sleep 1
Using CPUID AuthenticAMD-21-2
amd_nb/event=0xe0,umask=0x1f/: 216137 1001633975 1001633975
amd_nb/event=0xe1,umask=0x3/: 0 1001635564 1001635564
amd_nb/event=0xe2,umask=0x3/: 1084188 1001637368 1001637368

 Performance counter stats for 'system wide':

           216,137      amd_nb/event=0xe0,umask=0x1f/                                   
                 0      amd_nb/event=0xe1,umask=0x3/                                   
         1,084,188      amd_nb/event=0xe2,umask=0x3/                                   

       1.001687549 seconds time elapsed

[boris@pd: ~/kernel/linux/tools/perf> ./perf stat -v -a -e amd_nb/event=0xe0,umask=0x1f/,amd_nb/event=0xe1,umask=0x3/,amd_nb/event=0xe2,umask=0x3/,cycles sleep 1
Using CPUID AuthenticAMD-21-2
amd_nb/event=0xe0,umask=0x1f/: 226857 1001760122 1001760122
amd_nb/event=0xe1,umask=0x3/: 0 1001757534 1001757534
amd_nb/event=0xe2,umask=0x3/: 1117142 1001753602 1001753602
cycles: 109689123 8014364579 8014364579

 Performance counter stats for 'system wide':

           226,857      amd_nb/event=0xe0,umask=0x1f/                                   
                 0      amd_nb/event=0xe1,umask=0x3/                                   
         1,117,142      amd_nb/event=0xe2,umask=0x3/                                   
       109,689,123      cycles                                                      

       1.001970476 seconds time elapsed

-- 
Regards/Gruss,
    Boris.

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