From: Peter Zijlstra <peterz@infradead.org>
To: Alex Kogan <alex.kogan@oracle.com>
Cc: linux@armlinux.org.uk, mingo@redhat.com, will.deacon@arm.com,
arnd@arndb.de, longman@redhat.com, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, tglx@linutronix.de, bp@alien8.de,
hpa@zytor.com, x86@kernel.org, steven.sistare@oracle.com,
daniel.m.jordan@oracle.com, dave.dice@oracle.com,
rahul.x.yadav@oracle.com
Subject: Re: [PATCH v2 0/5] Add NUMA-awareness to qspinlock
Date: Mon, 1 Apr 2019 11:09:43 +0200 [thread overview]
Message-ID: <20190401090943.GG11158@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190329152006.110370-1-alex.kogan@oracle.com>
On Fri, Mar 29, 2019 at 11:20:01AM -0400, Alex Kogan wrote:
> The following locktorture results are from an Oracle X5-4 server
> (four Intel Xeon E7-8895 v3 @ 2.60GHz sockets with 18 hyperthreaded
> cores each).
The other interesting number is on a !NUMA machine. What do these
patches do there? Remember, most people do not in fact have numa.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Alex Kogan <alex.kogan@oracle.com>
Cc: linux-arch@vger.kernel.org, arnd@arndb.de, dave.dice@oracle.com,
x86@kernel.org, will.deacon@arm.com, linux@armlinux.org.uk,
steven.sistare@oracle.com, linux-kernel@vger.kernel.org,
rahul.x.yadav@oracle.com, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, longman@redhat.com, tglx@linutronix.de,
daniel.m.jordan@oracle.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 0/5] Add NUMA-awareness to qspinlock
Date: Mon, 1 Apr 2019 11:09:43 +0200 [thread overview]
Message-ID: <20190401090943.GG11158@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190329152006.110370-1-alex.kogan@oracle.com>
On Fri, Mar 29, 2019 at 11:20:01AM -0400, Alex Kogan wrote:
> The following locktorture results are from an Oracle X5-4 server
> (four Intel Xeon E7-8895 v3 @ 2.60GHz sockets with 18 hyperthreaded
> cores each).
The other interesting number is on a !NUMA machine. What do these
patches do there? Remember, most people do not in fact have numa.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Alex Kogan <alex.kogan@oracle.com>
Cc: linux-arch@vger.kernel.org, arnd@arndb.de, dave.dice@oracle.com,
x86@kernel.org, will.deacon@arm.com, linux@armlinux.org.uk,
steven.sistare@oracle.com, linux-kernel@vger.kernel.org,
rahul.x.yadav@oracle.com, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, longman@redhat.com, tglx@linutronix.de,
daniel.m.jordan@oracle.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 0/5] Add NUMA-awareness to qspinlock
Date: Mon, 1 Apr 2019 11:09:43 +0200 [thread overview]
Message-ID: <20190401090943.GG11158@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190329152006.110370-1-alex.kogan@oracle.com>
On Fri, Mar 29, 2019 at 11:20:01AM -0400, Alex Kogan wrote:
> The following locktorture results are from an Oracle X5-4 server
> (four Intel Xeon E7-8895 v3 @ 2.60GHz sockets with 18 hyperthreaded
> cores each).
The other interesting number is on a !NUMA machine. What do these
patches do there? Remember, most people do not in fact have numa.
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next prev parent reply other threads:[~2019-04-01 9:09 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 15:20 [PATCH v2 0/5] Add NUMA-awareness to qspinlock Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-03-29 15:20 ` [PATCH v2 1/5] locking/qspinlock: Make arch_mcs_spin_unlock_contended more generic Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-03-29 15:20 ` [PATCH v2 2/5] locking/qspinlock: Refactor the qspinlock slow path Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-03-29 15:20 ` [PATCH v2 3/5] locking/qspinlock: Introduce CNA into the slow path of qspinlock Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-04-01 9:06 ` Peter Zijlstra
2019-04-01 9:06 ` Peter Zijlstra
2019-04-01 9:06 ` Peter Zijlstra
2019-04-01 9:33 ` Peter Zijlstra
2019-04-01 9:33 ` Peter Zijlstra
2019-04-01 9:33 ` Peter Zijlstra
2019-04-03 15:53 ` Alex Kogan
2019-04-03 15:53 ` Alex Kogan
2019-04-03 16:10 ` Peter Zijlstra
2019-04-03 16:10 ` Peter Zijlstra
2019-04-03 16:10 ` Peter Zijlstra
2019-04-01 9:21 ` Peter Zijlstra
2019-04-01 9:21 ` Peter Zijlstra
2019-04-01 14:36 ` Waiman Long
2019-04-01 14:36 ` Waiman Long
2019-04-02 9:43 ` Peter Zijlstra
2019-04-02 9:43 ` Peter Zijlstra
2019-04-02 9:43 ` Peter Zijlstra
2019-04-03 15:39 ` Alex Kogan
2019-04-03 15:39 ` Alex Kogan
2019-04-03 15:48 ` Waiman Long
2019-04-03 15:48 ` Waiman Long
2019-04-03 16:01 ` Peter Zijlstra
2019-04-03 16:01 ` Peter Zijlstra
2019-04-04 5:05 ` Juergen Gross
2019-04-04 5:05 ` Juergen Gross
2019-04-04 9:38 ` Peter Zijlstra
2019-04-04 9:38 ` Peter Zijlstra
2019-04-04 9:38 ` Peter Zijlstra
2019-04-04 18:03 ` Waiman Long
2019-04-04 18:03 ` Waiman Long
2019-06-04 23:21 ` Alex Kogan
2019-06-04 23:21 ` Alex Kogan
2019-06-05 20:40 ` Peter Zijlstra
2019-06-05 20:40 ` Peter Zijlstra
2019-06-06 15:21 ` Alex Kogan
2019-06-06 15:21 ` Alex Kogan
2019-06-06 15:32 ` Waiman Long
2019-06-06 15:32 ` Waiman Long
2019-06-06 15:42 ` Waiman Long
2019-06-06 15:42 ` Waiman Long
2019-04-03 16:33 ` Waiman Long
2019-04-03 16:33 ` Waiman Long
2019-04-03 17:16 ` Peter Zijlstra
2019-04-03 17:16 ` Peter Zijlstra
2019-04-03 17:16 ` Peter Zijlstra
2019-04-03 17:40 ` Waiman Long
2019-04-03 17:40 ` Waiman Long
2019-04-04 2:02 ` Hanjun Guo
2019-04-04 2:02 ` Hanjun Guo
2019-04-04 2:02 ` Hanjun Guo
2019-04-04 3:14 ` Alex Kogan
2019-04-04 3:14 ` Alex Kogan
2019-06-11 4:22 ` liwei (GF)
2019-06-11 4:22 ` liwei (GF)
2019-06-11 4:22 ` liwei (GF)
2019-06-12 4:38 ` Alex Kogan
2019-06-12 4:38 ` Alex Kogan
2019-06-12 15:05 ` Waiman Long
2019-06-12 15:05 ` Waiman Long
2019-03-29 15:20 ` [PATCH v2 4/5] locking/qspinlock: Introduce starvation avoidance into CNA Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-04-02 10:37 ` Peter Zijlstra
2019-04-02 10:37 ` Peter Zijlstra
2019-04-02 10:37 ` Peter Zijlstra
2019-04-03 17:06 ` Alex Kogan
2019-04-03 17:06 ` Alex Kogan
2019-03-29 15:20 ` [PATCH v2 5/5] locking/qspinlock: Introduce the shuffle reduction optimization " Alex Kogan
2019-03-29 15:20 ` Alex Kogan
2019-04-01 9:09 ` Peter Zijlstra [this message]
2019-04-01 9:09 ` [PATCH v2 0/5] Add NUMA-awareness to qspinlock Peter Zijlstra
2019-04-01 9:09 ` Peter Zijlstra
2019-04-03 17:13 ` Alex Kogan
2019-04-03 17:13 ` Alex Kogan
2019-07-03 11:57 ` Jan Glauber
2019-07-03 11:58 ` Jan Glauber
2019-07-12 8:12 ` Hanjun Guo
2019-07-12 8:12 ` Hanjun Guo
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