From: Mark Zealey <mark@zealos.org>
To: linux-kernel@vger.kernel.org
Subject: Re: Jiffies from userspace
Date: Fri, 1 Feb 2002 21:01:13 +0000 [thread overview]
Message-ID: <20020201210113.GA30684@itsolve.co.uk> (raw)
In-Reply-To: <20020201123321.A799@mars.starshine.org>
In-Reply-To: <20020201123321.A799@mars.starshine.org>
On Fri, Feb 01, 2002 at 12:33:21PM -0800, Jim wrote:
>
> Sorry if this question seems stupid, but would this be a
> reasonable way to get an estimate of the "current" value of the
> kernel's jiffies:
>
> set -- `cat /proc/self/stat`; echo ${22}
>
> ... my reasoning:
>
> The cat will start a new process, field 22? of its "stat" node
> under proc should have the jiffies value at the time the process
> was started; so the echo command execute "shortly" thereafter.
Maybe, another idea would be to look at /proc/interrupts, on the timer one
(IRQ0)...
--
Mark Zealey
mark@zealos.org
mark@itsolve.co.uk
UL++++>$ G!>(GCM/GCS/GS/GM) dpu? s:-@ a16! C++++>$ P++++>+++++$ L+++>+++++$
!E---? W+++>$ N- !o? !w--- O? !M? !V? !PS !PE--@ PGP+? r++ !t---?@ !X---?
!R- b+ !tv b+ DI+ D+? G+++ e>+++++ !h++* r!-- y--
(www.geekcode.com)
next prev parent reply other threads:[~2002-02-01 21:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-01 20:33 Jiffies from userspace Jim
2002-02-01 20:58 ` Eli Carter
2002-02-01 21:01 ` Mark Zealey [this message]
2002-02-02 15:21 ` Athanasius
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