From: Peter Zijlstra <peterz@infradead.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: acme@kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org
Subject: Re: [PATCH 02/10] x86, perf: Support sysfs files depending on SMT status
Date: Mon, 9 May 2016 11:42:19 +0200 [thread overview]
Message-ID: <20160509094219.GO3448@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1462489447-31832-3-git-send-email-andi@firstfloor.org>
On Thu, May 05, 2016 at 04:03:59PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> Add a way to show different sysfs events attributes depending on
> HyperThreading is on or off. This is difficult to determine
> early at boot, so we just do it dynamically when the sysfs
> attribute is read.
>
> v2:
> Compute HT status only once in CPU online/offline hooks.
> v3: Use topology_max_smt_threads()
> Signed-off-by: Andi Kleen <ak@linux.intel.com>
> ---
> arch/x86/events/core.c | 24 ++++++++++++++++++++++++
> arch/x86/events/perf_event.h | 14 ++++++++++++++
> include/linux/perf_event.h | 7 +++++++
> 3 files changed, 45 insertions(+)
>
Should this not now live in /sys/devices/system/cpu/ ? Thomas?
next prev parent reply other threads:[~2016-05-09 9:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 23:03 Add top down metrics to perf stat Andi Kleen
2016-05-05 23:03 ` [PATCH 01/10] x86: Add topology_max_smt_threads() Andi Kleen
2016-05-06 10:13 ` Peter Zijlstra
2016-05-06 10:47 ` Thomas Gleixner
2016-05-06 17:24 ` [UPDATED PATCH " Andi Kleen
2016-05-07 8:11 ` Thomas Gleixner
2016-05-12 8:07 ` Ingo Molnar
2016-05-05 23:03 ` [PATCH 02/10] x86, perf: Support sysfs files depending on SMT status Andi Kleen
2016-05-09 9:42 ` Peter Zijlstra [this message]
2016-05-09 14:27 ` Andi Kleen
2016-05-09 14:34 ` Peter Zijlstra
2016-05-12 8:05 ` Ingo Molnar
2016-05-05 23:04 ` [PATCH 03/10] x86, perf: Add Top Down events to Intel Core Andi Kleen
2016-05-11 13:23 ` Jiri Olsa
2016-05-11 13:29 ` Peter Zijlstra
2016-05-12 8:10 ` Ingo Molnar
2016-05-05 23:04 ` [PATCH 04/10] x86, perf: Add Top Down events to Intel Atom Andi Kleen
2016-05-05 23:04 ` [PATCH 05/10] x86, perf: Use new topology_max_smt_threads() in HT leak workaround Andi Kleen
2016-05-05 23:04 ` [PATCH 06/10] perf, tools, stat: Avoid fractional digits for integer scales Andi Kleen
2016-05-07 19:10 ` Jiri Olsa
2016-05-07 19:24 ` Andi Kleen
2016-05-11 13:00 ` Jiri Olsa
2016-05-11 16:43 ` Arnaldo Carvalho de Melo
2016-05-20 6:42 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2016-05-05 23:04 ` [PATCH 07/10] perf, tools, stat: Scale values by unit before metrics Andi Kleen
2016-05-07 19:14 ` Jiri Olsa
2016-05-10 20:30 ` [tip:perf/core] perf " tip-bot for Andi Kleen
2016-05-05 23:04 ` [PATCH 08/10] perf, tools, stat: Basic support for TopDown in perf stat Andi Kleen
2016-05-05 23:04 ` [PATCH 09/10] perf, tools, stat: Add computation of TopDown formulas Andi Kleen
2016-05-05 23:04 ` [PATCH 10/10] perf, tools, stat: Add extra output of counter values with -vv Andi Kleen
2016-05-12 8:03 ` Jiri Olsa
2016-05-20 0:05 ` Andi Kleen
2016-05-12 7:47 ` Add top down metrics to perf stat Jiri Olsa
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