From: Peter Zijlstra <peterz@infradead.org>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>,
"Reshetova, Elena" <elena.reshetova@intel.com>,
Christoph Hellwig <hch@infradead.org>,
Kees Cook <keescook@chromium.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Jann Horn <jannh@google.com>, Eric Biggers <ebiggers3@gmail.com>,
Hans Liljestrand <ishkamiel@gmail.com>,
David Windsor <dwindsor@gmail.com>,
Greg KH <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@redhat.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
"Serge E. Hallyn" <serge@hallyn.com>,
"arozansk@redhat.com" <arozansk@redhat.com>,
"axboe@kernel.dk" <axboe@kernel.dk>,
James Bottomley <James.Bottomley@>
Subject: Re: [PATCH v2] refcount: Create unchecked atomic_t implementation
Date: Fri, 9 Jun 2017 09:20:36 +0200 [thread overview]
Message-ID: <20170609072036.GK8337@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <cea7c45e-511a-38ce-6b70-9a3a80108414@colorfullife.com>
On Fri, Jun 09, 2017 at 06:24:04AM +0200, Manfred Spraul wrote:
> Hi Davidlohr,
>
> On 06/08/2017 10:09 PM, Davidlohr Bueso wrote:
> >
> >Yes, this would be a prerequisite for ipc; which I initially thought
> >didn't
> >take a performance hit.
> >
> Did you see a regression for ipc?
I'd be most interested in having a benchmark that shows a regression.
Please share.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>,
"Reshetova, Elena" <elena.reshetova@intel.com>,
Christoph Hellwig <hch@infradead.org>,
Kees Cook <keescook@chromium.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Jann Horn <jannh@google.com>, Eric Biggers <ebiggers3@gmail.com>,
Hans Liljestrand <ishkamiel@gmail.com>,
David Windsor <dwindsor@gmail.com>,
Greg KH <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@redhat.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
"Serge E. Hallyn" <serge@hallyn.com>,
"arozansk@redhat.com" <arozansk@redhat.com>,
"axboe@kernel.dk" <axboe@kernel.dk>,
James Bottomley <James.Bottomley@hansenpartnership.com>,
"x86@kernel.org" <x86@kernel.org>, Ingo Molnar <mingo@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
"David S. Miller" <davem@davemloft.net>,
Rik van Riel <riel@redhat.com>,
linux-arch <linux-arch@vger.kernel.org>
Subject: Re: [PATCH v2] refcount: Create unchecked atomic_t implementation
Date: Fri, 9 Jun 2017 09:20:36 +0200 [thread overview]
Message-ID: <20170609072036.GK8337@worktop.programming.kicks-ass.net> (raw)
Message-ID: <20170609072036.x7dw8cauirCxS1ywl9D7EZcAeyirmYR-d2trYFZwAM0@z> (raw)
In-Reply-To: <cea7c45e-511a-38ce-6b70-9a3a80108414@colorfullife.com>
On Fri, Jun 09, 2017 at 06:24:04AM +0200, Manfred Spraul wrote:
> Hi Davidlohr,
>
> On 06/08/2017 10:09 PM, Davidlohr Bueso wrote:
> >
> >Yes, this would be a prerequisite for ipc; which I initially thought
> >didn't
> >take a performance hit.
> >
> Did you see a regression for ipc?
I'd be most interested in having a benchmark that shows a regression.
Please share.
next prev parent reply other threads:[~2017-06-09 7:21 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 2:58 [PATCH v2] refcount: Create unchecked atomic_t implementation Kees Cook
2017-06-08 2:58 ` Kees Cook
2017-06-08 5:56 ` Greg KH
2017-06-08 5:56 ` Greg KH
2017-06-20 4:47 ` Kees Cook
2017-06-20 4:47 ` Kees Cook
2017-06-08 6:58 ` Christoph Hellwig
2017-06-08 6:58 ` Christoph Hellwig
2017-06-08 7:53 ` Reshetova, Elena
2017-06-08 7:53 ` Reshetova, Elena
2017-06-08 20:09 ` Davidlohr Bueso
2017-06-08 20:09 ` Davidlohr Bueso
2017-06-09 4:24 ` Manfred Spraul
2017-06-09 4:24 ` Manfred Spraul
2017-06-09 7:20 ` Peter Zijlstra [this message]
2017-06-09 7:20 ` Peter Zijlstra
2017-06-21 9:57 ` Ingo Molnar
2017-06-21 9:57 ` Ingo Molnar
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