From: Andi Kleen <andi@firstfloor.org>
To: Carlos O'Donell <carlos@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Ben Maurer <bmaurer@fb.com>,
David Goldblatt <davidgoldblatt@fb.com>, Qi Wang <qiwang@fb.com>,
Boqun Feng <boqun.feng@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Paul Turner <pjt@google.com>, Andrew Hunter <ahh@google.com>,
Andy Lutomirski <luto@amacapital.net>,
Dave Watson <davejwatson@fb.com>,
Josh Triplett <josh@joshtriplett.org>,
Will Deacon <will.deacon@arm.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andi Kleen <andi@firstfloor.org>, Chris Lameter <cl@linux.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
rostedt <rostedt@goodmis.org>
Subject: Re: [RFC PATCH v9 for 4.15 01/14] Restartable sequences system call
Date: Mon, 16 Oct 2017 09:46:01 -0700 [thread overview]
Message-ID: <20171016164600.GO2482@two.firstfloor.org> (raw)
In-Reply-To: <165916d7-2f86-445a-9c84-f6444b5e753b@redhat.com>
> How you collect, summarize, and analyze that overwhelming evidence
> is up to you, specific to each change, and difficult to do accurately
> and with any large measure of statistical confidence. The reviewer
> has to basically trust you to some degree :-)
I think Linus' just asked for some working "real world, not micro" code that
demonstrates use.
A prototype type implementation of the glibc malloc cache using this may
be good enough.
Even if the API still changes slightly later in review I would assume
the basic concepts will stay the same, so it would be likely not
too difficult to convert that prototype to the later final API.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: "Carlos O'Donell" <carlos@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Ben Maurer <bmaurer@fb.com>,
David Goldblatt <davidgoldblatt@fb.com>, Qi Wang <qiwang@fb.com>,
Boqun Feng <boqun.feng@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Paul Turner <pjt@google.com>, Andrew Hunter <ahh@google.com>,
Andy Lutomirski <luto@amacapital.net>,
Dave Watson <davejwatson@fb.com>,
Josh Triplett <josh@joshtriplett.org>,
Will Deacon <will.deacon@arm.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andi Kleen <andi@firstfloor.org>, Chris Lameter <cl@linux.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>,
Russell King <linux@arm.linux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
linux-api <linux-api@vger.kernel.org>
Subject: Re: [RFC PATCH v9 for 4.15 01/14] Restartable sequences system call
Date: Mon, 16 Oct 2017 09:46:01 -0700 [thread overview]
Message-ID: <20171016164600.GO2482@two.firstfloor.org> (raw)
In-Reply-To: <165916d7-2f86-445a-9c84-f6444b5e753b@redhat.com>
> How you collect, summarize, and analyze that overwhelming evidence
> is up to you, specific to each change, and difficult to do accurately
> and with any large measure of statistical confidence. The reviewer
> has to basically trust you to some degree :-)
I think Linus' just asked for some working "real world, not micro" code that
demonstrates use.
A prototype type implementation of the glibc malloc cache using this may
be good enough.
Even if the API still changes slightly later in review I would assume
the basic concepts will stay the same, so it would be likely not
too difficult to convert that prototype to the later final API.
-Andi
next prev parent reply other threads:[~2017-10-16 16:46 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-12 23:03 [RFC PATCH v9 for 4.15 00/14] Restartable sequences and CPU op vector system calls Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH v9 for 4.15 01/14] Restartable sequences system call Mathieu Desnoyers
2017-10-13 0:36 ` Linus Torvalds
2017-10-13 0:36 ` Linus Torvalds
2017-10-13 9:35 ` Ben Maurer
2017-10-13 9:35 ` Ben Maurer
[not found] ` <DM5PR15MB1690DA99E4AA74FBE54CF7F9CF480-kTBAvIqET4EjX1lkf7hTyId3EbNNOtPMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-10-13 18:30 ` Linus Torvalds
2017-10-13 18:30 ` Linus Torvalds
[not found] ` <CA+55aFzPBES0JOYuZhuNM7NKN+G9ytZQT2daueFPw0j9HGpdGQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-13 20:54 ` Paul E. McKenney
2017-10-13 20:54 ` Paul E. McKenney
[not found] ` <20171013205418.GM3521-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2017-10-13 21:05 ` Linus Torvalds
2017-10-13 21:05 ` Linus Torvalds
[not found] ` <CA+55aFwvNS95ByZJTh1yG25QfaD0K0ZByK3iXeeRU8LafFiGFQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-13 21:21 ` Paul E. McKenney
2017-10-13 21:21 ` Paul E. McKenney
2017-10-13 21:36 ` Mathieu Desnoyers
2017-10-13 21:36 ` Mathieu Desnoyers
2017-10-16 16:04 ` Carlos O'Donell
2017-10-16 16:04 ` Carlos O'Donell
2017-10-16 16:46 ` Andi Kleen [this message]
2017-10-16 16:46 ` Andi Kleen
2017-10-16 22:17 ` Mathieu Desnoyers
2017-10-16 22:17 ` Mathieu Desnoyers
[not found] ` <21865534.42661.1508192263844.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-17 16:19 ` Ben Maurer
2017-10-17 16:19 ` Ben Maurer
[not found] ` <CY4PR15MB168879D6220D976B04FE482CCF4C0-ZVJ2su15u+xeX4ZvlgGe+Yd3EbNNOtPMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-10-17 16:33 ` Mathieu Desnoyers
2017-10-17 16:33 ` Mathieu Desnoyers
[not found] ` <1292309161.43101.1508258000235.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-17 16:41 ` Ben Maurer
2017-10-17 16:41 ` Ben Maurer
[not found] ` <CY4PR15MB16886FD43FB48592F3F5892FCF4C0-ZVJ2su15u+xeX4ZvlgGe+Yd3EbNNOtPMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-10-17 17:48 ` Mathieu Desnoyers
2017-10-17 17:48 ` Mathieu Desnoyers
2017-10-18 6:22 ` Greg KH
2017-10-18 6:22 ` Greg KH
[not found] ` <20171018062226.GB18857-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2017-10-18 16:28 ` Mathieu Desnoyers
2017-10-18 16:28 ` Mathieu Desnoyers
2017-10-14 3:01 ` Andi Kleen
2017-10-14 3:01 ` Andi Kleen
2017-10-14 4:05 ` Linus Torvalds
2017-10-14 4:05 ` Linus Torvalds
2017-10-14 11:37 ` Mathieu Desnoyers
2017-10-14 11:37 ` Mathieu Desnoyers
2017-10-13 12:50 ` Florian Weimer
2017-10-13 13:40 ` Mathieu Desnoyers
2017-10-13 13:40 ` Mathieu Desnoyers
2017-10-13 13:56 ` Florian Weimer
2017-10-13 13:56 ` Florian Weimer
2017-10-13 14:27 ` Mathieu Desnoyers
2017-10-13 14:27 ` Mathieu Desnoyers
2017-10-13 17:24 ` Andy Lutomirski
2017-10-13 17:24 ` Andy Lutomirski
[not found] ` <CALCETrXccCp8apoyUJV8kWLOavnFnenZoU-fbb6cOVZvWp-fnA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-13 17:53 ` Florian Weimer
2017-10-13 17:53 ` Florian Weimer
[not found] ` <3358e696-43e9-15d3-9634-68e9da79e121-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-13 18:17 ` Andy Lutomirski
2017-10-13 18:17 ` Andy Lutomirski
[not found] ` <CALCETrVWZxC=mT9p7HTrAwcAdMzaxwa=A-O0uQt79qy1Cpky_g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-10-14 11:53 ` Mathieu Desnoyers
2017-10-14 11:53 ` Mathieu Desnoyers
2017-10-18 16:41 ` Ben Maurer
[not found] ` <CY4PR15MB1688286D6B1283A1C234BAE6CF4E0-ZVJ2su15u+xeX4ZvlgGe+Yd3EbNNOtPMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-10-18 18:11 ` Mathieu Desnoyers
2017-10-18 18:11 ` Mathieu Desnoyers
[not found] ` <515879378.43966.1508350299712.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-19 11:35 ` Mathieu Desnoyers
2017-10-19 11:35 ` Mathieu Desnoyers
2017-10-19 17:01 ` Florian Weimer
2017-10-19 17:01 ` Florian Weimer
2017-10-23 17:30 ` Ben Maurer
2017-10-23 17:30 ` Ben Maurer
[not found] ` <CY4PR15MB16888F91F41A4A1D322C102CCF460-ZVJ2su15u+xeX4ZvlgGe+Yd3EbNNOtPMvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2017-10-23 20:44 ` Mathieu Desnoyers
2017-10-23 20:44 ` Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 02/14] tracing: instrument restartable sequences Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 03/14] Restartable sequences: ARM 32 architecture support Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 04/14] Restartable sequences: wire up ARM 32 system call Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 05/14] Restartable sequences: x86 32/64 architecture support Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 06/14] Restartable sequences: wire up x86 32/64 system call Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 07/14] Restartable sequences: powerpc architecture support Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 08/14] Restartable sequences: Wire up powerpc system call Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 09/14] Provide cpu_opv " Mathieu Desnoyers
[not found] ` <20171012230326.19984-10-mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-13 13:57 ` Alan Cox
2017-10-13 13:57 ` Alan Cox
2017-10-13 14:50 ` Mathieu Desnoyers
2017-10-13 14:50 ` Mathieu Desnoyers
[not found] ` <854849583.40647.1507906233368.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-14 14:22 ` Mathieu Desnoyers
2017-10-14 14:22 ` Mathieu Desnoyers
2017-10-13 17:20 ` Andy Lutomirski
2017-10-13 17:20 ` Andy Lutomirski
2017-10-14 2:50 ` Andi Kleen
2017-10-14 2:50 ` Andi Kleen
[not found] ` <20171014025029.GL2482-1g7Xle2YJi4/4alezvVtWx2eb7JE58TQ@public.gmane.org>
2017-10-14 13:35 ` Mathieu Desnoyers
2017-10-14 13:35 ` Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 10/14] cpu_opv: Wire up x86 32/64 " Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 11/14] cpu_opv: Wire up powerpc " Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 12/14] cpu_opv: Wire up ARM32 " Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 13/14] cpu_opv: Implement selftests Mathieu Desnoyers
2017-10-12 23:03 ` [RFC PATCH for 4.15 14/14] Restartable sequences: Provide self-tests Mathieu Desnoyers
2017-10-16 2:51 ` Michael Ellerman
2017-10-16 2:51 ` Michael Ellerman
2017-10-16 14:23 ` Mathieu Desnoyers
2017-10-16 14:23 ` Mathieu Desnoyers
[not found] ` <399058130.42156.1508163782335.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-17 10:38 ` Michael Ellerman
2017-10-17 10:38 ` Michael Ellerman
2017-10-17 13:50 ` Mathieu Desnoyers
2017-10-17 13:50 ` Mathieu Desnoyers
[not found] ` <871sm3n6sy.fsf-W0DJWXSxmBNbyGPkN3NxC2scP1bn1w/D@public.gmane.org>
2017-10-16 18:50 ` Mathieu Desnoyers
2017-10-16 18:50 ` Mathieu Desnoyers
[not found] ` <1998166049.42520.1508179805908.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-17 10:36 ` Michael Ellerman
2017-10-17 10:36 ` Michael Ellerman
[not found] ` <87d15mjc1g.fsf-W0DJWXSxmBNbyGPkN3NxC2scP1bn1w/D@public.gmane.org>
2017-10-17 13:50 ` Mathieu Desnoyers
2017-10-17 13:50 ` Mathieu Desnoyers
[not found] ` <1618170495.42951.1508248216596.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-18 5:45 ` Michael Ellerman
2017-10-18 5:45 ` Michael Ellerman
[not found] ` <20171012230326.19984-15-mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2017-10-16 3:00 ` Michael Ellerman
2017-10-16 3:00 ` Michael Ellerman
2017-10-16 3:48 ` Boqun Feng
2017-10-16 3:48 ` Boqun Feng
2017-10-16 11:48 ` Michael Ellerman
2017-10-16 11:48 ` Michael Ellerman
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