From: JJ Hiblot <jjhiblot@gmail.com>
To: Mohammed Riyaz <riyaz.list@gmail.com>, linux-perf-users@vger.kernel.org
Subject: Re: Measuring worst case interrupt processing time
Date: Mon, 09 Dec 2013 12:26:14 +0100 [thread overview]
Message-ID: <52A5A8D6.6020401@gmail.com> (raw)
In-Reply-To: <CAL7o8itUf0wOj-f7LEF=EfydzimOkpi1VrTZXVE0VvECNP0VPQ@mail.gmail.com>
Hi,
I used to do this kind of measurement with a GPIO and an oscilloscope
set up in persistence mode. In this case ,the precision of the measure
doesn't depend of the timer's resolution.
Jean-Jacques
Le 08/12/2013 14:18, Mohammed Riyaz a écrit :
> Hi,
>
> I am working on trying to measure the worst case processing time for
> hard IRQ and soft IRQ. Well, I understand that we could use time
> stamps at entry and exit to measure this. Just wanted to know if there
> were other standard ways of measuring this. Any suggestions?
>
> Thanks
>
> Riyaz
> --
> To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2013-12-09 11:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-08 13:18 Measuring worst case interrupt processing time Mohammed Riyaz
2013-12-09 3:49 ` Andi Kleen
2013-12-10 9:14 ` Mohammed Riyaz
2013-12-09 11:26 ` JJ Hiblot [this message]
2013-12-09 12:17 ` Mohammed Riyaz
2013-12-09 16:53 ` Jean-Jacques Hiblot
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=52A5A8D6.6020401@gmail.com \
--to=jjhiblot@gmail.com \
--cc=linux-perf-users@vger.kernel.org \
--cc=riyaz.list@gmail.com \
/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