From: David Ahern <dsahern@gmail.com>
To: Brendan Gregg <brendan.d.gregg@gmail.com>,
William Cohen <wcohen@redhat.com>
Cc: "linux-perf-use." <linux-perf-users@vger.kernel.org>
Subject: Re: perf software events broken in containers
Date: Thu, 23 Mar 2017 08:21:27 -0600 [thread overview]
Message-ID: <f95c7553-51f1-cee9-b8cc-643c32b0f72c@gmail.com> (raw)
In-Reply-To: <CAE40pdcbbU=e6YXTivOW1=w2urucbQknUZc9VzebPgHeiLrKqw@mail.gmail.com>
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.
next prev parent reply other threads:[~2017-03-23 14:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 18:24 perf software events broken in containers Brendan Gregg
2017-03-22 19:15 ` William Cohen
2017-03-22 19:59 ` Brendan Gregg
2017-03-22 20:29 ` William Cohen
2017-03-22 21:35 ` Brendan Gregg
2017-03-23 14:21 ` David Ahern [this message]
2017-03-27 16:10 ` Frank Ch. Eigler
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