From: Wolfgang Denk <wd@denx.de>
To: "Kevin D. Kissell" <kevink@mips.com>
Cc: Sathesh Babu Edara <satheshbabu.edara@analog.com>,
linux-mips@linux-mips.org
Subject: Re: [processor frequency]
Date: Tue, 10 Jan 2006 00:01:42 +0100 [thread overview]
Message-ID: <20060109230142.51979354115@atlas.denx.de> (raw)
In-Reply-To: Your message of "Mon, 09 Jan 2006 22:53:37 +0100." <43C2DB61.7090704@mips.com>
In message <43C2DB61.7090704@mips.com> you wrote:
>
> BTW, I'm puzzled by the "context switch" benchmark test results. By what
> mechanism - or by what definition of "context switch" - can having more
> frequent interrupts make context switches happen more quickly? It seems
> to me that those results must be due to a systematic measurement error
> being added/removed.
I have to admit that I don't have a good explanation for this either.
It's what I got with (repeated) measurements. Cache (flush) issues
might play a role here - but without closer analysis this is just
speculation.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
If you can't beat it or corrupt it, you pretend it was your idea in
the first place. - Terry Pratchett, _Guards! Guards!_
next prev parent reply other threads:[~2006-01-09 22:59 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-08 21:00 ALCHEMY: AU1200 USB Host Controller (OHCI/EHCI) Jordan Crouse
2005-12-10 5:13 ` [linux-usb-devel] " David Brownell
2005-12-10 6:42 ` Pete Popov
2005-12-12 10:51 ` Bora Sahin
2006-01-03 14:25 ` Matej Kupljen
2006-01-03 15:54 ` Jordan Crouse
2006-01-03 21:45 ` Matej Kupljen
2006-01-04 7:18 ` Matej Kupljen
2006-01-04 12:50 ` Sathesh Babu Edara
2006-01-04 12:50 ` Sathesh Babu Edara
2006-01-04 13:06 ` Kevin D. Kissell
2006-01-09 4:54 ` LL and SC instruction simulation Sathesh Babu Edara
2006-01-09 4:54 ` Sathesh Babu Edara
2006-01-09 7:43 ` Sathesh Babu Edara
2006-01-09 7:43 ` RE: Sathesh Babu Edara
2006-01-09 7:49 ` LL and SC instruction simulation Sathesh Babu Edara
2006-01-09 7:49 ` Sathesh Babu Edara
2006-01-09 14:54 ` Ralf Baechle
2006-01-09 15:17 ` Kevin D. Kissell
2006-01-09 15:17 ` Kevin D. Kissell
2006-01-09 15:21 ` Ralf Baechle
2006-01-09 15:30 ` Ralf Baechle
2006-01-09 15:47 ` Kevin D. Kissell
2006-01-09 15:47 ` Kevin D. Kissell
2006-01-09 15:51 ` Ralf Baechle
2006-01-09 9:00 ` Kevin D. Kissell
2006-01-09 9:00 ` Re: Kevin D. Kissell
2006-01-09 21:23 ` [processor frequency] Wolfgang Denk
2006-01-09 21:53 ` Kevin D. Kissell
2006-01-09 23:01 ` Wolfgang Denk [this message]
2006-01-04 12:12 ` ALCHEMY: AU1200 USB Host Controller (OHCI/EHCI) Matej Kupljen
2006-01-04 12:32 ` Matthias Lenk
2006-01-04 13:07 ` Matej Kupljen
2006-01-04 13:54 ` bora.sahin
2006-01-04 14:17 ` Matej Kupljen
-- strict thread matches above, loose matches on Subject: below --
2006-01-09 22:00 [processor frequency] Mitchell, Earl
2006-01-09 22:00 ` Mitchell, Earl
2006-01-09 23:05 ` Wolfgang Denk
2006-01-10 9:36 ` Dominic Sweetman
2006-01-10 9:36 ` Dominic Sweetman
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