From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org
Subject: Support Intel uncore event lists v2
Date: Tue, 18 Oct 2016 16:07:38 -0700 [thread overview]
Message-ID: <1476832069-364-1-git-send-email-andi@firstfloor.org> (raw)
This adds uncore support on top of the recently merged JSON event list
infrastructure for core events. Uncore is everything outside the core,
including memory controllers, PCI, interconnect etc.
Uncore is more complicated to handle than core events because it uses
many duplicated PMUs, which leads to long event lists and verbose duplicated
outputs.
In fact previously it was nearly unusable for many cases without special
tools to generate event list and aggregate data (such as
https://github.com/andikleen/pmu-tools/tree/master/ucevent)
With this patchkit we add:
- Basic support for uncore events in JSON events
- Support aliases that get duplicated over many PMUs transparently
- Support summing up duplicated PMUs per socket
- Support extending the perf stat builtin metrics with simple ratios
specified in the event list. This covers the vast majority of useful
metrics.
So far mainly servers are supported. Also this is not using full event lists
(which are full of very obscure events) but only for a smaller subset of
curated useful and understandable metrics.
The actual event lists are not posted, but available at
git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/intel-uncore-json-files-1
The code is available here
git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/builtin-json-17
v1: Initial post
v2: Address review feedback. See changelog in commits.
-Andi
next reply other threads:[~2016-10-18 23:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-18 23:07 Andi Kleen [this message]
2016-10-18 23:07 ` [PATCH 01/11] perf, tools: Factor out scale conversion code Andi Kleen
2016-10-18 23:07 ` [PATCH 02/11] perf, tools: Only print Using CPUID message once Andi Kleen
2016-10-18 23:07 ` [PATCH 03/11] perf, tools: Parse eventcode as number in jevents Andi Kleen
2016-10-18 23:07 ` [PATCH 04/11] perf, tools: Add support for parsing uncore json files Andi Kleen
2016-10-18 23:07 ` [PATCH 05/11] perf, tools: Support per pmu json aliases Andi Kleen
2016-10-18 23:07 ` [PATCH 06/11] perf, tools: Support event aliases for non cpu// pmus Andi Kleen
2016-10-18 23:07 ` [PATCH 07/11] perf, tools: Add debug support for outputing alias string Andi Kleen
2016-10-18 23:07 ` [PATCH 08/11] perf, tools: Collapse identically named events in perf stat Andi Kleen
2016-10-18 23:07 ` [PATCH 09/11] perf, tools: Expand PMU events by prefix match Andi Kleen
2016-10-18 23:07 ` [PATCH 10/11] perf, tools: Support DividedBy header in JSON event list Andi Kleen
2016-10-18 23:07 ` [PATCH 11/11] perf, tools, stat: Output generic dividedby metric Andi Kleen
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