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From: tabris <tabris@tabris.net>
To: arjanv@redhat.com, Micha Feigin <michf@post.tau.ac.il>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: finding out the value of HZ from userspace
Date: Sat, 13 Mar 2004 16:19:00 -0500	[thread overview]
Message-ID: <200403131619.00478.tabris@tabris.net> (raw)
In-Reply-To: <1079198671.4446.3.camel@laptop.fenrus.com>

On Saturday 13 March 2004 12:24 pm, Arjan van de Ven wrote:
> On Thu, 2004-03-11 at 15:17, Micha Feigin wrote:
> > Is it possible to find out what the kernel's notion of HZ is from user
> > space?
> > It seem to change from system to system and between 2.4 (100 on i386)
> > to 2.6 (1000 on i386).
>
> if you can see 1000 from userspace that is a bad kernel bug; can you say
> where you find something in units of 1000 ?
2.6.3-rc1-mm1

procinfo gives the timer interrupt counting 1000 ints/sec
tho procinfo is broken for other stuff like 2.4 showed pages swapped, pages 
read in and out.

--
tabris
-
"We never make assertions, Miss Taggart," said Hugh Akston.  "That is
the moral crime peculiar to our enemies.  We do not tell -- we *show*.
We do not claim -- we *prove*."  
-- Ayn Rand, _Atlas Shrugged_


  parent reply	other threads:[~2004-03-13 21:19 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <michf@post.tau.ac.il>
2004-03-11 14:17 ` finding out the value of HZ from userspace Micha Feigin
2004-03-13 17:24   ` Arjan van de Ven
2004-03-13 19:34     ` John Reiser
2004-03-13 19:38       ` Arjan van de Ven
2004-03-13 22:14         ` Micha Feigin
2004-03-13 22:32           ` Arjan van de Ven
2004-03-14  1:05             ` Micha Feigin
2004-03-14  1:49               ` Andrew Morton
2004-03-14 14:37                 ` Micha Feigin
2004-03-16  0:28         ` Peter Williams
2004-03-16  6:33           ` Arjan van de Ven
2004-03-16 23:38             ` Peter Williams
2004-03-20 10:22               ` Arjan van de Ven
2004-03-20 11:28                 ` Stefan Smietanowski
2004-03-20 11:41                   ` Arjan van de Ven
2004-03-20 23:58                     ` Peter Williams
2004-03-21  1:09                       ` Tim Schmielau
2004-03-21  1:30                         ` Peter Williams
2004-03-21  8:00                   ` Kai Henningsen
2004-03-21 10:32                     ` Stefan Smietanowski
2004-03-22 22:34                   ` Micha Feigin
2004-03-22 23:04                     ` Peter Williams
2004-03-25 17:40                       ` Jamie Lokier
2004-03-25 23:22                         ` Peter Williams
2004-03-27 13:31                           ` Jamie Lokier
2004-03-27 23:52                             ` Peter Williams
2004-03-28 12:16                               ` Jamie Lokier
2004-03-27 21:11                       ` Micha Feigin
2004-03-20 23:26                 ` Peter Williams
2004-03-13 21:19     ` tabris [this message]
2004-03-13 22:10     ` Micha Feigin
2004-03-13 22:41       ` Arjan van de Ven
2004-03-14  1:07         ` Micha Feigin
2004-03-14 18:26         ` John Reiser
2004-03-14  2:45   ` Horst von Brand
2004-03-14 14:39     ` Micha Feigin
2004-03-15  8:17     ` Jamie Lokier
2004-03-16 18:16       ` Mark Gross
2004-03-15 10:13     ` Richard Curnow
     [not found]   ` <200403161757.48786.mgross@linux.intel.com>
     [not found]     ` <20040317023059.GD19564@mail.shareable.org>
2004-03-17 16:48       ` Call for HRT in 2.6 kernel was " Mark Gross
2004-03-17 20:07         ` Jamie Lokier
2004-03-17 21:25           ` Mark Gross
2004-03-18  1:19           ` Karim Yaghmour
2004-03-18 11:56             ` Jamie Lokier
2004-03-18 15:23               ` Karim Yaghmour
2004-03-21  1:55                 ` Erik Andersen
2004-03-23 22:35                   ` Karim Yaghmour
     [not found] <1zkOe-Uc-17@gated-at.bofh.it>
     [not found] ` <1zl7M-1eJ-43@gated-at.bofh.it>
     [not found]   ` <1zn9p-3mW-5@gated-at.bofh.it>
     [not found]     ` <1znj5-3wM-15@gated-at.bofh.it>
     [not found]       ` <1AaWr-655-7@gated-at.bofh.it>
2004-03-16  2:27         ` Andi Kleen
2004-03-16  5:53           ` Peter Williams
2004-03-16  6:16             ` Andi Kleen
2004-03-16 23:15               ` Peter Williams
2004-03-16 23:56                 ` Andi Kleen
2004-03-17  0:15                   ` Peter Williams
2004-03-16  9:16             ` Bernd Petrovitsch
2004-03-16 23:45               ` Peter Williams
2004-03-16 16:14 Albert Cahalan
2004-03-16 17:22 ` Richard Curnow
2004-03-20  9:56 ` Arjan van de Ven
2004-03-20 14:54   ` Albert Cahalan
2004-03-20 23:58     ` Peter Williams
2004-03-31 21:40       ` Randy.Dunlap
2004-03-31 23:46         ` Albert Cahalan
2004-04-01 15:54           ` Jamie Lokier
2004-04-01 16:01             ` Arjan van de Ven
2004-04-01 16:30               ` Jamie Lokier
2004-04-01 16:50                 ` Richard B. Johnson
2004-04-01 17:01                   ` Jamie Lokier
2004-04-01 21:27                   ` Michael Buesch
2004-04-02  0:16                   ` Peter Williams
2004-04-02  0:07                 ` Peter Williams
2004-04-02  0:39                   ` Jamie Lokier
2004-04-02  1:44                     ` Peter Williams
2004-04-02 18:28                       ` Tim Bird
2004-04-02 22:05                         ` Peter Williams
2004-04-01 16:12             ` Albert Cahalan

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