[PD] Amazing Performance difference - Gem Midi osx

[timon botez]

I was using the version bundled with the installer. It looks like its 
the same version on all 3 installers that I used. If you have any 
pointers to where I can get the OSX diagnostics software I would be 
grateful.

Any word on the dual monitor issue?

Thanks,
T.

GEM: Graphics Environment for Multimedia
GEM: ver: 0.90
GEM: compiled: Apr 13 2005
GEM: maintained by IOhannes m zmoelnig
GEM: Authors :	Mark Danks (original version on irix/windows)
GEM: 		Chris Clepper (macOS-X)
GEM: 		Daniel Heckenberg (windows)
GEM: 		James Tittle (macOS-X)
GEM: 		IOhannes m zmoelnig (linux/windows)
On 20 Jul 2005, at 02:28, chris clepper wrote:

> What versions of Gem are you running?
>
> If the whole OS becomes unresponsive yet GEM still cranks out the 
> pixels and vertices then that is a sure sign of the pthread scheduling 
> hack being on.  I thought that was only invoked with the -rt flag on 
> OSX, but maybe that has reverted back.
>
> The curve3d object has some quirks apparently (reported on gem-dev 
> today) and it is certainly not easy on the CPU.  If one version you 
> tested was missing some metro driven events and the other got them 
> all, there would be a difference in CPU load.
>
> I don't use any of the installers so I can't really help reproduce the 
> issue.  The best tool to use on OSX for diagnosing performance issues 
> is an app called Shark.  You need the developer tools, perhaps a CHUD 
> installer and more than a passing knowledge of the PowerPC 
> architecture to really make sense of it.  If you manage to record 
> profiles of each version with Shark then we could probably pin down 
> the problem very quickly and surely.  I strongly encourage the more 
> experienced OSX Pd/GEM users learn how to use this app as it can 
> pinpoint bottlenecks in you patches without fail.
>
> cgc
>
> On Jul 19, 2005, at 4:34 PM, timon botez wrote:
>
>> Hi,
>> I had some problems with metro running irregular. Im on osx 10.3.9. I 
>> was running Pd-0.38-2hcs0 installer. Cause of the problems I went to 
>> Hans Christoph's site to see if there was any updates. I downloaded 
>> the recent installer Pd-0.38-4-extended-RC1 and the experimental 
>> Pd-0.39test2-extended-RC0.
>>
>> My patch uses Gem (5x curve3d 3 3) and 4 midi notes routed to Reason.
>> The results was very interesting. On the latest installer the metro 
>> was running fine but the performance was incredibly slow. I could not 
>> edit anything while running. It looks like all the pipes got 
>> completely blocked. The experimental installer was a bit faster, but 
>> not by much.
>>
>> The patch was using about 90 percent cpu on the latest installer, 75 
>> on the experimental and 60 on the old.
>>
>> Ive gone back to the old and the metro seems back on track.
>>
>> Is there a reason for this?
>> Thought I should mention it.
>>
>> Timon.
>>
>>
>>
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>