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SubjectRe: [PATCH v2 5/7] perf script python: add Python3 support to intel-pt-events.py
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On 3/5/19 7:02 AM, Tony Jones wrote:

> I tested the patch on a Skylake system but it was not connected to our standard
> network so I had to move files manually. It seems I managed to somehow mess up
> and not attach the correct patch :(

Sure enough, I managed to attach the wrong patch. Sorry. I'll attach revised (v3)
to this thread as the change is trivial.

I am seeing a lot of "instruction trace errors" on this Skylake system. I see them
using Python2 without any of the changes. I've not looked at this.

Output of v3.

# head /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Xeon(R) CPU E3-1240 v5 @ 3.50GHz
stepping : 3
microcode : 0xc6
cpu MHz : 1600.887
cache size : 8192 KB
physical id : 0

# ldd /tmp/perf/bin/perf | grep python
libpython3.6m.so.1.0 => /usr/lib64/libpython3.6m.so.1.0 (0x00007fd8fdaae000)

# /tmp/perf/bin/perf script report intel-pt-events -i /tmp/perf.data | tail -20
swapper 0/0 [006] 17424.535324338 cbr: 27 freq: 2703 MHz ( 77%) 0 [unknown] ([unknown])
perf 20899/20899 [003] 17424.535324363 cbr: 27 freq: 2703 MHz ( 77%) 0 [unknown] ([unknown])
swapper 0/0 [004] 17424.535324387 cbr: 27 freq: 2703 MHz ( 77%) 0 [unknown] ([unknown])
swapper 0/0 [000] 17424.535324867 cbr: 27 freq: 2703 MHz ( 77%) 0 [unknown] ([unknown])
swapper 0/0 [006] 17424.543315376 cbr: 24 freq: 2403 MHz ( 69%) 0 [unknown] ([unknown])
perf 20899/20899 [003] 17424.699315686 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [006] 17424.714915068 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [005] 17424.779321732 cbr: 9 freq: 901 MHz ( 26%) 0 [unknown] ([unknown])
swapper 0/0 [001] 17424.779322738 cbr: 9 freq: 901 MHz ( 26%) 0 [unknown] ([unknown])
swapper 0/0 [003] 17424.903321958 cbr: 9 freq: 901 MHz ( 26%) 0 [unknown] ([unknown])
swapper 0/0 [000] 17425.099316258 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [003] 17425.107316167 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [004] 17425.519574381 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [001] 17425.519796998 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [002] 17425.519828095 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [005] 17425.519897417 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
swapper 0/0 [007] 17425.519936473 cbr: 16 freq: 1602 MHz ( 46%) 0 [unknown] ([unknown])
Warning:
260 instruction trace errors
End

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