From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsahern@gmail.com>
Subject: Re: perf software events broken in containers
Date: Thu, 23 Mar 2017 08:21:27 -0600
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To: Brendan Gregg <brendan.d.gregg@gmail.com>, William Cohen <wcohen@redhat.com>
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On 3/22/17 3:35 PM, Brendan Gregg wrote:
> We also found that docker explicitly blocks perf_event_open() by default[1]:
> 
> "perf_event_open    Tracing/profiling syscall, which could leak a lot
> of information on the host."

as it should. The event collection does not discriminate by namespaces.