Re: Jiffies from userspace

Mark Zealey (mark@zealos.org)
Fri, 1 Feb 2002 21:01:13 +0000


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--

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