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Date: Mon, 6 Jun 2016 09:31:16 -0700
From: Andi Kleen <ak@linux.intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>,
        Andi Kleen <andi@firstfloor.org>, linux-kernel@vger.kernel.org,
        jolsa@kernel.org
Subject: Re: [PATCH] perf test: Ignore .scale and other special files
Message-ID: <20160606163116.GC9646@tassilo.jf.intel.com>
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> [root@jouet ~]# perf stat -e topdown-total-slots:u,cpu/event=topdown-total-slots/u usleep 1
> event syntax error: 'topdown-total-slots:u,cpu/event=topdown-total-slots/u'
>                             \___ parser error
> Run 'perf list' for a list of valid events
> 
>  Usage: perf stat [<options>] [<command>]
> 
>     -e, --event <event>   event selector. use 'perf list' to list available events
> [root@jouet ~]#
> 
> that it fails, Jiri, probably something obvious to you? :-)

Works for me here

./perf stat -e topdown-total-slots:u,cpu/event=topdown-total-slots/u sleep 1

 Performance counter stats for 'sleep 1':

           515,204      topdown-total-slots:u                                       
           514,712      cpu/event=topdown-total-slots/u                                   

       1.001438114 seconds time elapsed


Did you perhaps miss this hunk?

--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -259,6 +259,7 @@ cycles-ct                                   { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
 cycles-t                                       { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
 mem-loads                                      { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
 mem-stores                                     { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
+topdown-[a-z-]+                                        { return str(yyscanner, PE_KERN

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only