[LMMS-devel] Serious crash problematic code in LMMS 'autosave recover the project.

[musikBear <mk...@ho...>]

I have constantly hangs and occasionally i have real pc crashes where only
resolution is a goofy-grip.
These situations are the result of the LMMS 'autosave of the 'recover.mmp'
file.
I will illustrate the behavior with pictures from Task-manager.
In this picture you can see how autosave causes enormous peaks in CPU usage.
It also shows that autosave requires more CPU than a saving manually and
saving manually during playback has the lowest cpu-usage (?)
see this picture
http://www.yourfilelink.com/get.php?fid=775478
pt 1 on the picture shows a manual save peak during playback. eg i pressed
the 'save-file' during playback in the song-editor. Song-editor! Thats
important!
pt 3 shows a manual save-peak in idle state -eg the 'stop' was pressed and
then the save button was pressed.
pt 2 shows the peak that is a result of lmms' own auto-save.
This peak is clearly seriously larger. It is both higer and extended over
time.
Crashes occur if something else is taking place on the pc at that moment.
The autosave also block the opportunity to have 2 instances of lmms open
simultanious, which can be pretty useful if for instance a drumpattern
should be copied to a new project.
I think saving to (uncompressed) .mmp takes more cpu than saving to mmpz
(compressed) -but ..that is pretty irrelevant at least to me.
What i strongly advocate is a way to disable the autosave ALL TOGETHER. The
logic placement of this choice would be in the 'General Settings' -section.
After having to restart several times i must say that i feel strongly for a
resolution of this issue.
The autosave to recover is not a feature -it is bug -a crash-prone bug even.


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Hope this helped
BR.
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Tutorials and some music on : http://www.youtube.com/user/bearsoundz

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