From: Nathan Lynch <nathanl@linux.ibm.com>
To: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Tyrel Datwyler <tyreld@linux.ibm.com>
Subject: Re: [PATCH v5 0/5] Track and expose idle PURR and SPURR ticks
Date: Tue, 21 Apr 2020 08:30:11 -0500 [thread overview]
Message-ID: <877dy92cgs.fsf@linux.ibm.com> (raw)
In-Reply-To: <1586249263-14048-1-git-send-email-ego@linux.vnet.ibm.com>
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com> writes:
> This is the fifth version of the patches to track and expose idle PURR
> and SPURR ticks. These patches are required by tools such as lparstat
> to compute system utilization for capacity planning purposes.
>
> The previous versions can be found here:
> v4: https://lkml.org/lkml/2020/3/27/323
> v3: https://lkml.org/lkml/2020/3/11/331
> v2: https://lkml.org/lkml/2020/2/21/21
> v1: https://lore.kernel.org/patchwork/cover/1159341/
>
> They changes from v4 are:
>
> - As suggested by Naveen, moved the functions read_this_idle_purr()
> and read_this_idle_spurr() from Patch 2 and Patch 3 respectively
> to Patch 4 where it is invoked.
>
> - Dropped Patch 6 which cached the values of purr, spurr,
> idle_purr, idle_spurr in order to minimize the number of IPIs
> sent.
>
> - Updated the dates for the idle_purr, idle_spurr in the
> Documentation Patch 5.
LGTM
Acked-by: Nathan Lynch <nathanl@linux.ibm.com>
Thanks.
prev parent reply other threads:[~2020-04-21 13:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-07 8:47 [PATCH v5 0/5] Track and expose idle PURR and SPURR ticks Gautham R. Shenoy
2020-04-07 8:47 ` [PATCH v5 1/5] powerpc: Move idle_loop_prolog()/epilog() functions to header file Gautham R. Shenoy
2020-05-06 2:51 ` Michael Ellerman
2020-04-07 8:47 ` [PATCH v5 2/5] powerpc/idle: Store PURR snapshot in a per-cpu global variable Gautham R. Shenoy
2020-04-07 8:47 ` [PATCH v5 3/5] powerpc/pseries: Account for SPURR ticks on idle CPUs Gautham R. Shenoy
2020-04-07 8:47 ` [PATCH v5 4/5] powerpc/sysfs: Show idle_purr and idle_spurr for every CPU Gautham R. Shenoy
2020-04-07 8:47 ` [PATCH v5 5/5] Documentation: Document sysfs interfaces purr, spurr, idle_purr, idle_spurr Gautham R. Shenoy
2020-04-07 9:05 ` [PATCH v5 0/5] Track and expose idle PURR and SPURR ticks Naveen N. Rao
2020-04-07 11:24 ` Kamalesh Babulal
2020-04-20 22:46 ` Tyrel Datwyler
2020-04-23 10:02 ` Gautham R Shenoy
2020-04-30 2:34 ` Michael Ellerman
2020-04-30 4:16 ` Gautham R Shenoy
2020-05-01 5:50 ` Gautham R Shenoy
2020-04-21 13:30 ` Nathan Lynch [this message]
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