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


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

Submitted by:  None
Submitted on:  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?

Dave Robillard <drobilla>
Project 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.




(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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)


Depends on the following items: None found

Items that depend on this one: None found


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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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