linux-kernel - Re: [PATCH 1/2] perf, x86: Revamp PEBS event selection

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140702154828.GO19781@tassilo.jf.intel.com>
Date:	Wed, 2 Jul 2014 08:48:28 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] perf, x86: Revamp PEBS event selection

On Wed, Jul 02, 2014 at 05:44:05PM +0200, Stephane Eranian wrote:
> On Wed, Jul 2, 2014 at 5:33 PM, Andi Kleen <ak@...ux.intel.com> wrote:
> >> No, still needs to be INTEL_ALL_EVENT_CONSTRAINT(0x0, 0x1)
> >> otherwise the get_event_constraint() test I mentioned previously will
> >> fail, event with your ALL_FILTER mask.
> >
> > What events should fail? I verified all PEBS events and they work as expected.
> >
> Random events should not fail, they should go with precise and not generate
> any samples. That's the whole point of the exercise.
> 
> perf record -a -e r6099:p sleep 1

Like I said I ran all PEBS events and they generated samples.

-Andi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/