From owner-freebsd-hackers  Fri Mar 29  5:48:47 2002
Delivered-To: freebsd-hackers@freebsd.org
Received: from web21105.mail.yahoo.com (web21105.mail.yahoo.com [216.136.227.107])
	by hub.freebsd.org (Postfix) with SMTP id 976D437B416
	for <freebsd-hackers@FreeBSD.org>; Fri, 29 Mar 2002 05:48:42 -0800 (PST)
Message-ID: <20020329134842.33850.qmail@web21105.mail.yahoo.com>
Received: from [62.254.0.5] by web21105.mail.yahoo.com via HTTP; Fri, 29 Mar 2002 05:48:42 PST
Date: Fri, 29 Mar 2002 05:48:42 -0800 (PST)
From: Hiten Pandya <hitmaster2k@yahoo.com>
Reply-To: hiten@uk.FreeBSD.org
Subject: Re: determining context switching?
To: Russell Francis <frussell@p1.cs.ohiou.edu>,
	freebsd-hackers@FreeBSD.org
In-Reply-To: <Pine.GSO.3.96.1020329082538.25172A-100000@p2>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-hackers.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-hackers>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-hackers>
X-Loop: FreeBSD.ORG

--- Russell Francis <frussell@p1.cs.ohiou.edu> wrote:
> I was wondering if there is a way to determine the context switching rate?
> 
> In /usr/include/sys/vmmeter.h the structure
> 
> struct vmmeter {
> 	u_int v_swtch;		/* context switches */
> 	.
> 	.
> 	.
> }
> 
> looks like what I want but I can't find a function which returns this data
> to a user land application.  Is this possible?  If so how?

Have you tried to use any of the sysctl(3) functions?  Try doing the
following on the command line:

  shell# apropos sysctl

Hope this helps. :)

Thanks,

  -- Hiten Pandya
  -- <hiten@uk.FreeBSD.org>

__________________________________________________
Do You Yahoo!?
Yahoo! Greetings - send holiday greetings for Easter, Passover
http://greetings.yahoo.com/

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message