From: Peter Zijlstra <peterz@infradead.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: gleb@kernel.org, pbonzini@redhat.com, eranian@google.com,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Implement PEBS virtualization for Silvermont
Date: Fri, 30 May 2014 09:39:34 +0200 [thread overview]
Message-ID: <20140530073934.GC20167@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <1401412327-14810-1-git-send-email-andi@firstfloor.org>
On Thu, May 29, 2014 at 06:12:03PM -0700, Andi Kleen wrote:
> PEBS is very useful (e.g. enabling the more cycles:pp event or
> memory profiling) Unfortunately it didn't work in virtualization,
> which is becoming more and more common.
>
> This patch kit implements simple PEBS virtualization for KVM on Silvermont
> CPUs. Silvermont does not have the leak problems that prevented successfull
> PEBS virtualization earlier.
Silvermont is such an underpowered thing, who in his right mind would
run anything virt on it to further reduce performance?
prev parent reply other threads:[~2014-05-30 7:39 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 1:12 Implement PEBS virtualization for Silvermont Andi Kleen
2014-05-30 1:12 ` [PATCH 1/4] perf: Add PEBS virtualization enable " Andi Kleen
2014-05-30 1:12 ` [PATCH 2/4] perf: Allow guest PEBS for KVM owned counters Andi Kleen
2014-05-30 7:31 ` Peter Zijlstra
2014-05-30 16:03 ` Andi Kleen
2014-05-30 16:17 ` Peter Zijlstra
2014-05-30 1:12 ` [PATCH 3/4] perf: Handle guest PEBS events with a fake event Andi Kleen
2014-05-30 7:34 ` Peter Zijlstra
2014-05-30 16:29 ` Andi Kleen
2014-05-30 1:12 ` [PATCH 4/4] kvm: Implement PEBS virtualization Andi Kleen
2014-05-30 8:21 ` Gleb Natapov
2014-05-30 16:24 ` Andi Kleen
2014-06-02 16:45 ` Gleb Natapov
2014-06-02 16:52 ` Andi Kleen
2014-06-02 19:09 ` Marcelo Tosatti
2014-06-02 19:05 ` Eric Northup
2014-06-02 19:57 ` Andi Kleen
2014-06-19 14:39 ` Paolo Bonzini
2014-06-10 18:04 ` Marcelo Tosatti
2014-06-10 19:22 ` Andi Kleen
2014-06-10 21:06 ` Marcelo Tosatti
2014-06-19 14:42 ` Paolo Bonzini
2014-06-19 17:33 ` Andi Kleen
2014-06-19 20:33 ` Paolo Bonzini
2014-06-22 13:57 ` Avi Kivity
2014-06-22 19:02 ` Andi Kleen
2014-06-24 16:45 ` Marcelo Tosatti
2014-06-25 7:04 ` Avi Kivity
2014-05-30 7:39 ` Peter Zijlstra [this message]
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