[PD-dev] [ pure-data-Bugs-1325663 ] Higher CPU load in 0.39 than older versions

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Bugs item #1325663, was opened at 2005-10-13 11:06
Message generated for change (Comment added) made by piotrmajdak
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Category: puredata
Group: None
Status: Open
Resolution: None
Priority: 8
Private: No
Submitted By: Piotr Majdak (piotrmajdak)
Assigned to: Nobody/Anonymous (nobody)
Summary: Higher CPU load in 0.39 than older versions

Initial Comment:
Updating to 0.39 I noticed that most patches use more
CPU than in previous versions. Configuration: OS:
Windows 2000, ASIO driver activated.

CPU Load without any patch loaded:
- 0.38.3: 2%
- 0.39: 4%

CPU Load with a patch:
- 0.38.3: 3%
- 0.39: 40% (!)

CPU Load with comport object receiving data from serial
port:
- 0.38.3: 3%
- 0.39: 25%

It seems to depend on audio channels used: more
channels higher CPU load. It is hardware independent
(several sound interfaces tested with different computers).

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>Comment By: Piotr Majdak (piotrmajdak)
Date: 2008-04-28 18:13

Message:
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Two years ago, we stopped using 0.39 because of this bug and we adapted
our patches to 0.38.4-extended which works fine. Unfortunately, I can not
contribute to this issue at the moment because of lack of time. Sorry... 

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Comment By: Hans-Christoph Steiner (eighthave)
Date: 2008-04-28 15:41

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An example patch is always very helpful, especially if it triggers the
problem every time that it is run.  Ideally the example patch would have
only enough objects to cause the problem, but nothing else.

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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2006-08-31 08:13

Message:
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does this still happen with the 0.40 prereleases?
if so, could you narrow down the problem a bit?

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Comment By: Piotr Majdak (piotrmajdak)
Date: 2005-10-13 11:13

Message:
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changed priority: this bug makes 0.39 unusable :-(

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