From: Ingo Molnar <mingo@elte.hu>
To: "Jaswinder Singh Rajput" <jaswinder@kernel.org>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
"Arjan van de Ven" <arjan@infradead.org>,
"Frédéric Weisbecker" <fweisbec@gmail.com>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>,
"Paul Mackerras" <paulus@samba.org>,
"Anton Blanchard" <anton@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH 4/6 -tip] perf_counter: Add Generalized Hardware interrupt support for AMD
Date: Wed, 1 Jul 2009 13:24:06 +0200 [thread overview]
Message-ID: <20090701112406.GE15958@elte.hu> (raw)
In-Reply-To: <1246441094.3403.10.camel@hpdv5.satnam>
* Jaswinder Singh Rajput <jaswinder@kernel.org> wrote:
>
> $ ./perf stat -e interrupts -e masked -e int-pending-mask-cycles -- ls -lR /usr/include/ > /dev/null
>
> Performance counter stats for 'ls -lR /usr/include/':
>
> 377 interrupts
> 53429936 int-mask-cycles
> 1119 int-pending-mask-cycles
>
> 0.371457539 seconds time elapsed
Agreed, this is another useful generalization - and the 'cycles
pending' metrics are not retrievable via any software means.
We could and should probably add a software counter for hardirqs as
wel. That would allow the vector/irqnr information to be passed in,
and it would allow architectures without irq metrics in the PMU to
have this counter too.
This way we could profile based on a specific interrupt source only
- say based on the networking card.
Ingo
next prev parent reply other threads:[~2009-07-01 11:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-01 9:33 [GIT-PULL -tip][PATCH 0/6] perf_counter patches Jaswinder Singh Rajput
2009-07-01 9:35 ` [PATCH 1/6 -tip] perf stat: define MATCH_EVENT for easy attrs checking Jaswinder Singh Rajput
2009-07-01 9:36 ` [PATCH 2/6 -tip] perf stat: treat same behaviour for all CYCLES and CLOCKS Jaswinder Singh Rajput
2009-07-01 9:37 ` [PATCH 3/6 -tip] perf_counter: Add Generalized Hardware vectored co-processor support for AMD Jaswinder Singh Rajput
2009-07-01 9:38 ` [PATCH 4/6 -tip] perf_counter: Add Generalized Hardware interrupt " Jaswinder Singh Rajput
2009-07-01 9:38 ` [PATCH 5/6 -tip] perf_counter: Add hardware vector events for nehalem Jaswinder Singh Rajput
2009-07-01 9:40 ` [PATCH 6/6 -tip] perf_counter: Add hardware interrupt events for nehalem, core2 and atom Jaswinder Singh Rajput
2009-07-01 11:24 ` Ingo Molnar [this message]
2009-07-03 12:01 ` [PATCH 4/6 -tip] perf_counter: Add Generalized Hardware interrupt support for AMD Jaswinder Singh Rajput
2009-07-04 10:22 ` Ingo Molnar
2009-07-04 14:17 ` Jaswinder Singh Rajput
2009-07-05 1:11 ` Ingo Molnar
2009-07-05 4:29 ` Jaswinder Singh Rajput
2009-07-05 8:04 ` Ingo Molnar
2009-07-05 9:01 ` Jaswinder Singh Rajput
2009-07-05 9:55 ` Jaswinder Singh Rajput
2009-07-01 11:20 ` [PATCH 3/6 -tip] perf_counter: Add Generalized Hardware vectored co-processor " Ingo Molnar
2009-07-01 11:27 ` Ingo Molnar
2009-07-01 11:40 ` Jaswinder Singh Rajput
2009-07-01 11:49 ` Ingo Molnar
2009-07-02 9:44 ` [PATCH 1/2 -tip] perf_counter: Add generalized hardware vectored co-processor support for AMD and Intel Corei7/Nehalem Jaswinder Singh Rajput
2009-07-02 9:45 ` [PATCH 2/2 -tip] perf_counter: Add generalized hardware interrupt support for AMD and Intel Corei7/Nehalem, Core2 and Atom Jaswinder Singh Rajput
2009-07-03 10:33 ` Ingo Molnar
2009-07-03 7:38 ` [PATCH 1/2 -tip] perf_counter: Add generalized hardware vectored co-processor support for AMD and Intel Corei7/Nehalem Jaswinder Singh Rajput
2009-07-03 9:30 ` Ingo Molnar
2009-07-03 10:10 ` Jaswinder Singh Rajput
2009-07-03 12:17 ` [PATCH 3/3 -tip] perf list: avoid replicating functions Jaswinder Singh Rajput
2009-07-04 9:50 ` Ingo Molnar
2009-07-03 10:29 ` [PATCH 1/2 -tip] perf_counter: Add generalized hardware vectored co-processor support for AMD and Intel Corei7/Nehalem Ingo Molnar
2009-07-03 11:55 ` Jaswinder Singh Rajput
2009-07-03 12:49 ` Jaswinder Singh Rajput
2009-07-03 13:25 ` Jaswinder Singh Rajput
2009-07-04 10:03 ` Ingo Molnar
2009-07-04 14:05 ` Jaswinder Singh Rajput
2009-07-04 9:49 ` Ingo Molnar
2009-07-04 13:54 ` Jaswinder Singh Rajput
2009-07-01 11:39 ` [PATCH 2/6 -tip] perf stat: treat same behaviour for all CYCLES and CLOCKS Ingo Molnar
2009-07-03 8:18 ` Paul Mackerras
2009-07-03 8:27 ` Ingo Molnar
2009-07-01 11:30 ` [tip:perfcounters/urgent] perf stat: Define MATCH_EVENT for easy attr checking tip-bot for Jaswinder Singh Rajput
2009-07-01 11:45 ` [GIT-PULL -tip][PATCH 0/6] perf_counter patches Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090701112406.GE15958@elte.hu \
--to=mingo@elte.hu \
--cc=a.p.zijlstra@chello.nl \
--cc=acme@redhat.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=anton@samba.org \
--cc=arjan@infradead.org \
--cc=fweisbec@gmail.com \
--cc=jaswinder@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=paulus@samba.org \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox