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From: Erik Tews <erik.tews@gmx.net>
To: Harald Welte <laforge@gnumonks.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: How to know HZ from userspace?
Date: Mon, 4 Jun 2001 01:14:50 +0200	[thread overview]
Message-ID: <20010604011449.A16006@mobile> (raw)
In-Reply-To: <20010530203725.H27719@corellia.laforge.distro.conectiva>
In-Reply-To: <20010530203725.H27719@corellia.laforge.distro.conectiva>

On Wed, May 30, 2001 at 08:37:25PM -0300, Harald Welte wrote:
> Hi!
> 
> Is there any way to read out the compile-time HZ value of the kernel?
> 
> I had a brief look at /proc/* and didn't find anything.
> 
> The background, why it is needed:
> 
> There are certain settings, for example the icmp rate limiting values,
> which can be set using sysctl. Those setting are basically derived from
> HZ values (1*HZ, for example).
> 
> If you now want to set those values from a userspace program / script in
> a portable manner, you need to be able to find out of HZ of the currently
> running kernel.

Have a look at the source of top. There is a lib which can help you to
find out HZ by reading some files from proc.

  parent reply	other threads:[~2001-06-03 23:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-30 23:37 How to know HZ from userspace? Harald Welte
2001-05-31  0:07 ` H. Peter Anvin
2001-05-31  0:22   ` Joel Becker
2001-05-31  0:24   ` Jonathan Lundell
2001-05-31  0:38     ` Joel Becker
2001-05-31  0:44       ` Jonathan Lundell
2001-05-31  1:02         ` Mike Castle
2001-05-31 17:12         ` Daniel Phillips
2001-05-31  1:17       ` Martin Dalecki
2001-05-31  3:23     ` Albert D. Cahalan
2001-06-01  1:57   ` Ralf Baechle
2001-06-01  4:12     ` H. Peter Anvin
2001-06-01  8:17       ` Chris Wedgwood
2001-05-31  3:40 ` Albert D. Cahalan
2001-05-31 15:52   ` Harald Welte
2001-05-31 17:06     ` H. Peter Anvin
2001-06-03 23:14 ` Erik Tews [this message]
2001-06-06 18:09 ` Tomas Telensky
2001-06-06 18:22   ` Harald Welte
2001-06-06 18:59     ` Tomas Telensky
2001-06-06 20:47       ` Harald Welte
2001-06-06 20:55 ` Linus Torvalds
2001-06-06 23:59   ` Chris Wedgwood
     [not found] <XFMail.20010601083302.peterw@dascom.com.au>
2001-05-31 22:43 ` H. Peter Anvin

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