Lots and lots of system time

[Dominik Reichardt]

Hi,
I noticed that too and I think this started with xcode 4.0.

Dom

Am 29.10.2011 um 16:54 schrieb Harald Hanche-Olsen <hanche at math.ntnu.no>:

> Please pardon me if this is off topic, but it is about a phenomenon I
> only see when macports is compiling software: So I'd like to hear if
> other macports users are seeing the same:
> 
> Namely, that the majority of CPU time while compiling is system time,
> not user time. Right now, for example, I am compiling gimp2, and top
> says
> 
> CPU usage: 10.34% user, 86.20% sys, 3.44% idle
> 
> It did not use to be this way. Unfortunately, several things got
> upgraded about the same time, so I am not certain which one to blame:
> The OS to Lion, and XCode and macports itself.
> 
> Does anyone else see this? Can you come up with a possible explanation
> off the top of your head?
> 
> I thought it might be possible to play around with dtrace to find out
> what system calls are sucking up all the time, but my dtrace-foo is
> rather limited.
> 
> The system is a 13 inch MacBook Pro with SSD, not a HD. I have
> full-disk encryption enabled, but I am pretty sure this started before
> I turned it on.
> 
> - Harald
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