From: Peter Zijlstra <peterz@infradead.org>
To: Barry Song <song.bao.hua@hisilicon.com>
Cc: tim.c.chen@linux.intel.com, catalin.marinas@arm.com,
will@kernel.org, rjw@rjwysocki.net, vincent.guittot@linaro.org,
bp@alien8.de, tglx@linutronix.de, mingo@redhat.com,
lenb@kernel.org, dietmar.eggemann@arm.com, rostedt@goodmis.org,
bsegall@google.com, mgorman@suse.de, msys.mizuma@gmail.com,
valentin.schneider@arm.com, gregkh@linuxfoundation.org,
jonathan.cameron@huawei.com, juri.lelli@redhat.com,
mark.rutland@arm.com, sudeep.holla@arm.com,
aubrey.li@linux.intel.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
x86@kernel.org, xuwei5@huawei.com, prime.zeng@hisilicon.com,
guodong.xu@linaro.org, yangyicong@huawei.com,
liguozhu@hisilicon.com, linuxarm@openeuler.org, hpa@zytor.com
Subject: Re: [RFC PATCH v4 3/3] scheduler: Add cluster scheduler level for x86
Date: Tue, 2 Mar 2021 11:30:43 +0100 [thread overview]
Message-ID: <YD4T0qBBgR6fPbQb@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210301225940.16728-4-song.bao.hua@hisilicon.com>
On Tue, Mar 02, 2021 at 11:59:40AM +1300, Barry Song wrote:
> From: Tim Chen <tim.c.chen@linux.intel.com>
>
> There are x86 CPU architectures (e.g. Jacobsville) where L2 cahce
> is shared among a cluster of cores instead of being exclusive
> to one single core.
Isn't that most atoms one way or another? Tremont seems to have it per 4
cores, but earlier it was per 2 cores.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Barry Song <song.bao.hua@hisilicon.com>
Cc: juri.lelli@redhat.com, mark.rutland@arm.com, x86@kernel.org,
catalin.marinas@arm.com, bsegall@google.com,
liguozhu@hisilicon.com, xuwei5@huawei.com, hpa@zytor.com,
will@kernel.org, vincent.guittot@linaro.org,
aubrey.li@linux.intel.com, linux-acpi@vger.kernel.org,
mingo@redhat.com, mgorman@suse.de, msys.mizuma@gmail.com,
valentin.schneider@arm.com, lenb@kernel.org,
linuxarm@openeuler.org, rostedt@goodmis.org, bp@alien8.de,
prime.zeng@hisilicon.com, jonathan.cameron@huawei.com,
tglx@linutronix.de, dietmar.eggemann@arm.com,
linux-arm-kernel@lists.infradead.org, guodong.xu@linaro.org,
gregkh@linuxfoundation.org, rjw@rjwysocki.net,
linux-kernel@vger.kernel.org, sudeep.holla@arm.com,
yangyicong@huawei.com, tim.c.chen@linux.intel.com
Subject: Re: [RFC PATCH v4 3/3] scheduler: Add cluster scheduler level for x86
Date: Tue, 2 Mar 2021 11:30:43 +0100 [thread overview]
Message-ID: <YD4T0qBBgR6fPbQb@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210301225940.16728-4-song.bao.hua@hisilicon.com>
On Tue, Mar 02, 2021 at 11:59:40AM +1300, Barry Song wrote:
> From: Tim Chen <tim.c.chen@linux.intel.com>
>
> There are x86 CPU architectures (e.g. Jacobsville) where L2 cahce
> is shared among a cluster of cores instead of being exclusive
> to one single core.
Isn't that most atoms one way or another? Tremont seems to have it per 4
cores, but earlier it was per 2 cores.
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next prev parent reply other threads:[~2021-03-02 11:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-01 22:59 [RFC PATCH v4 0/3] scheduler: expose the topology of clusters and add cluster scheduler Barry Song
2021-03-01 22:59 ` Barry Song
2021-03-01 22:59 ` [RFC PATCH v4 1/3] topology: Represent clusters of CPUs within a die Barry Song
2021-03-01 22:59 ` Barry Song
2021-03-15 3:11 ` Song Bao Hua (Barry Song)
2021-03-15 3:11 ` Song Bao Hua (Barry Song)
2021-03-15 10:52 ` Jonathan Cameron
2021-03-15 10:52 ` Jonathan Cameron
2021-03-01 22:59 ` [RFC PATCH v4 2/3] scheduler: add scheduler level for clusters Barry Song
2021-03-01 22:59 ` Barry Song
2021-03-02 10:43 ` Peter Zijlstra
2021-03-02 10:43 ` Peter Zijlstra
2021-03-16 7:33 ` Song Bao Hua (Barry Song)
2021-03-16 7:33 ` Song Bao Hua (Barry Song)
2021-03-08 11:25 ` Vincent Guittot
2021-03-08 11:25 ` Vincent Guittot
2021-03-08 22:15 ` Song Bao Hua (Barry Song)
2021-03-08 22:15 ` Song Bao Hua (Barry Song)
2021-03-01 22:59 ` [RFC PATCH v4 3/3] scheduler: Add cluster scheduler level for x86 Barry Song
2021-03-01 22:59 ` Barry Song
2021-03-02 10:30 ` Peter Zijlstra [this message]
2021-03-02 10:30 ` Peter Zijlstra
2021-03-03 18:34 ` Tim Chen
2021-03-03 18:34 ` Tim Chen
2021-03-08 22:30 ` [Linuxarm] " Song Bao Hua (Barry Song)
2021-03-08 22:30 ` Song Bao Hua (Barry Song)
2021-03-15 20:53 ` Tim Chen
2021-03-15 20:53 ` Tim Chen
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