From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Ellerman <michael@ellerman.id.au>
Subject: Re: perf mem: invalid or unsupported event: 'cpu/mem-loads/pp'
Date: Tue, 23 Jul 2013 11:46:49 +1000
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To: Milian Wolff <mail@milianw.de>
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On Mon, 2013-07-22 at 19:34 +0200, Milian Wolff wrote:
> Hey there,
> 
> I just found perf mem in the output of perf help and wanted to try it:
> 
> $ perf mem record ls
> invalid or unsupported event: 'cpu/mem-loads/pp'
> Run 'perf list' for a list of valid events
> 
>  usage: perf record [<options>] [<command>]
>  ...
> 
> Am I missing a kernel configuration? Or what is going on here?

You need a kernel that has mem-loads in /sys/bus/event_source/devices/cpu/events

Assuming you're on x86 you'll need a 3.10 or later kernel.

cheers