bugThe Om Modular Synthesizer - Bugs: bug #15918, Memory Leak when killing om with...


bug #15918: Memory Leak when killing om with killall -9

Submitter:  None
Submitted:  Mon 27 Feb 2006 05:46:26 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  Need Info
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Thu 02 Mar 2006 07:09:27 PM UTC, comment #3: 

You mean you're unable to kill it?

If it successfully is killed, there can't possibly be a memory leak.  It's not around anymore to own any memory. ;)

Perhaps more to the point:  why are you kill -9 ing it in the first place?  It should exit cleanly on a kill.

If that plugin is being such a hog, and you have a pentium 4, I suspect denormal issues.  Is everything (ie that plugin and om) build with -mfpmath=sse?

David Robillard <drobilla>
Group administrator
Tue 28 Feb 2006 04:26:09 AM UTC, comment #2: 

Further tracked down the issue to the LADSPA Formant plugin from Omins... This thing is not only a Hog, this thing is a HOG. It sounds great, but eats 35% CPU power on my 2GHz Pentium 4.

There is a Formant plugin in ZynAddSubFX that eats about 4%. (rough estimate)


Mon 27 Feb 2006 06:15:33 PM UTC, comment #1: 

Further investigation has revealed the slowdowns were due to loading a patch created by yours truly. It is attached.


Mon 27 Feb 2006 05:46:26 PM UTC, original submission:  

After several times (about 10) of killing om with killall -9 through a startup/shutdown script the computer started behaving like a Pentium/100 running Windows XP.

I assume the cause is killing OM by sigkill.




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Attach Files:

Attached Files
file #1865:  heavyfatdrums.om added by None (25KiB - application/octet-stream - A patch of three drums that manages to (nearly) crash om)


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Follow 2 latest changes.

Date Changed by Updated Field Previous Value => Replaced by
2006-03-02 drobilla StatusNone Need Info
2006-02-27 None Attached File- Added heavyfatdrums.om, #3443

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