linux-kernel - Re: perf: python3 + tests attr.py failing

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Date:   Tue, 5 Feb 2019 16:43:11 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Tony Jones <tonyj@...e.de>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        Seeteena Thoufeek <s1seetee@...ux.vnet.ibm.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: perf: python3 + tests attr.py failing

On Tue, Feb 05, 2019 at 10:49:35AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Feb 04, 2019 at 09:37:38PM +0100, Jiri Olsa escreveu:
> > On Mon, Feb 04, 2019 at 12:10:42PM -0300, Arnaldo Carvalho de Melo wrote:
> > > Noticed this now when building with PYTHON=python3, can you take a look?
> > > For now I'm reinstalling python2-devel and building with it, i.e.
> > > removing that PYTHON=python3 make command line variable.
> > > 
> > > [root@...co ~]# perf test -v perf_event_attr
> > > 16: Setup struct perf_event_attr                          :
> > > --- start ---
> > > test child forked, pid 23937
> > >   File "/home/acme/libexec/perf-core/tests/attr.py", line 325
> > >     except Unsup, obj:
> > >                 ^
> > > SyntaxError: invalid syntax
> > > test child finished with -1
> > > ---- end ----
> > > Setup struct perf_event_attr: FAILED!
> > 
> > hum, I built the same way like you 'make PYTHON=python3'
> > [root@...va perf]# ldd ./perf | grep python
> >         libpython3.6m.so.1.0 => /lib64/libpython3.6m.so.1.0 (0x00007f4ca7cc4000)
> > 
> > and get 'Ok result'
> > 
> > [root@...va perf]# ./perf test attr
> > 16: Setup struct perf_event_attr                          : Ok
> > 48: Synthesize attr update                                : Ok
> > 
> > 
> > [root@...va perf]# python3 --version
> > Python 3.6.8
> > [root@...va perf]# rpm -qa | grep python3-devel
> > python3-devel-3.6.8-1.fc28.x86_64
> > 
> > which Fedora are you on 29? I'm on 28
> 
> I think you tested perf/core, that has Tony's fix to make 'perf test perf_event_attr'
> work with both python2 and python3, right?
> 
> While I was having that failure with perf/urgent.
> 
> I just cherry-picked:
> 
> commit 35ea7e4bbb89ecd32057f5f6a2a8feb0d7224e51
> Author: Tony Jones <tonyj@...e.de>
> Date:   Wed Jan 23 16:52:29 2019 -0800
> 
>     perf script python: Add Python3 support to tests/attr.py

right, i was over latest perf/core

jirka

> 
> 
> ----------------------
> 
> And now my perf/urgent branch passes that 'perf test' entry with both
> python2 and 3.
> 
> - Arnaldo