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* Processor time used by Emacs
@ 2003-10-29 13:02 Lars Brinkhoff
  2003-10-29 15:58 ` Dan Anderson
  0 siblings, 1 reply; 4+ messages in thread
From: Lars Brinkhoff @ 2003-10-29 13:02 UTC (permalink / raw)


Is there a way in Emacs Lisp to find out the amount of processor time
(perhaps separated into user/system time) spent by Emacs?

For example, if there was such a function called processor-time, this
should return (close to) 0:

        (let ((start (processor-time)))
          (sleep-for 10)
          (- (processor-time) start))

, whereas current-time would indicate that ten seconds passed
sleeping.

-- 
Lars Brinkhoff,         Services for Unix, Linux, GCC, HTTP
Brinkhoff Consulting    http://www.brinkhoff.se/

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Processor time used by Emacs
       [not found] <mailman.2705.1067432711.21628.help-gnu-emacs@gnu.org>
@ 2003-10-29 13:16 ` David Kastrup
  2003-10-29 14:05   ` Lars Brinkhoff
  0 siblings, 1 reply; 4+ messages in thread
From: David Kastrup @ 2003-10-29 13:16 UTC (permalink / raw)


Lars Brinkhoff <lars@nocrew.org> writes:

> Is there a way in Emacs Lisp to find out the amount of processor time
> (perhaps separated into user/system time) spent by Emacs?
> 
> For example, if there was such a function called processor-time, this
> should return (close to) 0:
> 
>         (let ((start (processor-time)))
>           (sleep-for 10)
>           (- (processor-time) start))
> 
> , whereas current-time would indicate that ten seconds passed
> sleeping.

(let ((start (current-time)))
  (sleep-for 10)
  (float-time (time-since start)))

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Processor time used by Emacs
  2003-10-29 13:16 ` David Kastrup
@ 2003-10-29 14:05   ` Lars Brinkhoff
  0 siblings, 0 replies; 4+ messages in thread
From: Lars Brinkhoff @ 2003-10-29 14:05 UTC (permalink / raw)


David Kastrup <dak@gnu.org> writes:
> > Is there a way in Emacs Lisp to find out the amount of processor time
> > (perhaps separated into user/system time) spent by Emacs?
> > 
> > For example, if there was such a function called processor-time, this
> > should return (close to) 0:
> > 
> >         (let ((start (processor-time)))
> >           (sleep-for 10)
> >           (- (processor-time) start))
> > 
> > , whereas current-time would indicate that ten seconds passed
> > sleeping.
> 
> (let ((start (current-time)))
>   (sleep-for 10)
>   (float-time (time-since start)))

That would return (about) 10.0, right?  If so, time-since is not what
I need.

(My version of Emacs (20.7) doesn't have time-since, but I guess it's
the time-since function from Gnus.)

-- 
Lars Brinkhoff,         Services for Unix, Linux, GCC, HTTP
Brinkhoff Consulting    http://www.brinkhoff.se/

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Processor time used by Emacs
  2003-10-29 13:02 Processor time used by Emacs Lars Brinkhoff
@ 2003-10-29 15:58 ` Dan Anderson
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Anderson @ 2003-10-29 15:58 UTC (permalink / raw)
  Cc: help-gnu-emacs

I don't know enough elisp to help you, but if you could execute a shell
command you could get the info simple enough:

% ps ax | grep emacs 

Then use a pipe or file to a program or file you want emacs to read
from.

-Dan

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2003-10-29 15:58 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2003-10-29 13:02 Processor time used by Emacs Lars Brinkhoff
2003-10-29 15:58 ` Dan Anderson
     [not found] <mailman.2705.1067432711.21628.help-gnu-emacs@gnu.org>
2003-10-29 13:16 ` David Kastrup
2003-10-29 14:05   ` Lars Brinkhoff

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