Re: [Ganglia-developers] [PATCH] More metrics for Darwin

[Sebastian H. <Hag...@un...>]

Hi Martin,

--On Mittwoch, 24. November 2004 11:38:50 Uhr MEZ -0800 Martin Knoblauch=20
<kn...@kn...> wrote:

>  from my experience, the patch tracker thingy is pretty much dead for
> this project. Posting patches here is fine.

OK.

>  One question. Does Darwin have some "cpu is waiting for IO" state?

I have no idea. I'm really no expert. What I did was to look at the source=20
for Apple's "top" to find out how they read the metrics. So far I've done=20
the CPU part. I'll try to do mem and network metrics next.

> That would go nicely into cpu_wio_func.

I'll see if I can find anything. If you feel like looking yourself, you can =

do that here:

<http://www.opensource.apple.com/darwinsource/10.3.6/>

>  That the cpu usage does not add up to 100% all the time is pretty
> normal. How big are the deviations?

Not so big. Actually I've thought about it and it makes sense to me: the=20
samples aren't taken simultaneously, so it's not surprising that they don't =

add up. Wouldn't it be better to have one routine get called for all the=20
cpu samples?

Greetings, Sebastian
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