[R-SIG-Mac] Problems with Rcmdr via XQuartz on OSX Mavericks

[Robert J Goedman]

Hi John,

Looking at Activity Monitor on my system, R will always take up say 2.5% CPU time while R.app will almost go away if it is not active. This might be because in a terminal the process might not be treated as a pure application but maybe more as a traditional Unix process. But that's just a guess from my side.

What surprised me a bit is that we couldn't switch off App Nap, as is possible with several other apps (go to the Info panel of an app and it should show a 'Prevent App Nap' box, e.g. Dropbox). R.app did not show that box, probably a consequence of an older build/project creation?

Anyway, on my system I added that property in the info.plist and disabled the App Nap behavior. It seems to be working fine now. I'll do some more testing to see if I can get the check box on the Info screen show up and check with Simon if it's ok to commit the change. Of course, in that case R.app will also always consume 2.5% CPU. Under the energy tab of the Activity Monitor you can see which apps allow App Nap.

Rob J. Goedman
goedman at icloud.com




On Nov 23, 2013, at 5:43 AM, John Fox <jfox at mcmaster.ca> wrote:

> Dear Rob et al.,
> 
> I'm glad that there's progress in understanding the source of the problem, but I wonder why the problem doesn't manifest itself -- at least in my experience -- when R runs in a terminal window.
> 
> Best,
> John
> 
> On Fri, 22 Nov 2013 14:42:00 -0800
> Robert J Goedman <goedman at icloud.com> wrote:
>> Thansk Peter,
>> 
>> Now I can reproduce it!
>> 
>> Rob J. Goedman
>> goedman at icloud.com
>> 
>> 
>> 
>> 
>> On Nov 22, 2013, at 1:00 PM, peter dalgaard <pdalgd at gmail.com> wrote:
>> 
>>> 
>>> On 22 Nov 2013, at 16:42 , Robert J Goedman <goedman at icloud.com> wrote:
>>> 
>>>> Not sure how long it takes to see the lagging (a few minutes someone reported), but I've not been able to reproduce this problem.
>>> 
>>> For me, library(tcltk); demo(tkfaq), click to focus, then use Fn-Down (i.e. PgDown) to go to the bottom of the file, Fn-Up to the top, etc. Less than two iteration for me before the effect kicks in.
>>> 
>>>> 
>>>> Which makes me wonder if anyone has seen this behavior after rebuilding R.app on Mavericks (from the R.app sources).
>>>> 
>>>> Regards,
>>>> Rob J. Goedman
>>>> goedman at icloud.com
>>>> 
>>>> 
>>>> On Nov 22, 2013, at 7:29 AM, Simon Urbanek <simon.urbanek at r-project.org> wrote:
>>>> 
>>>>> On Nov 20, 2013, at 11:41 AM, Jonathan Chapman <petsrme2 at icloud.com> wrote:
>>>>> 
>>>>>> I upgraded to XQuartz 2.7.5, but it still lags.
>>>>>> 
>>>>> 
>>>>> Please read Peter's response - it has nothing to do with XQuartz versions
>>>> 
>>>> 
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>>>> 
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>>> 
>>> -- 
>>> Peter Dalgaard, Professor,
>>> Center for Statistics, Copenhagen Business School
>>> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
>>> Phone: (+45)38153501
>>> Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com
>> 
>> 
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>> 
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