Ubuntu
gdesklets package

python in background uses too much cpu

Bug #71085 reported by Stanislaw Pitucha
20
Affects Status Importance Assigned to Milestone
gDesklets
Fix Released
High
gDesklets Core Team
gDesklets release-of-0.36.3
Nominated for 0.3x by Rhett Trappman
gdesklets (Ubuntu)
In Progress
Undecided
gDesklets Core Team

Bug Description

I'm running gdesklets on edgy and python cpu usage goes up to 18% with minimum 10% all the time.
Also this is visible in log console every second (3 addresses in a loop):

<exceptions.ValueError instance at 0x897648c>
<exceptions.ValueError instance at 0x897648c>
<exceptions.ValueError instance at 0xb620c20c>
<exceptions.ValueError instance at 0xb620c20c>
<exceptions.ValueError instance at 0x89689cc>
<exceptions.ValueError instance at 0x89689cc>

Revision history for this message
Christian Meyer (chrisime) wrote :

Basic fix is in bzr.

Changed in gdesklets:
assignee: nobody → chrisime
status: New → In Progress
Revision history for this message
Christian Meyer (chrisime) wrote :

Reassigning...

Changed in gdesklets:
assignee: chrisime → gdesklets-core-team
Revision history for this message
Bjoern Koch (h.humpel) wrote :

Still got the same problem here with the plotter(s) (see duplicate bug #125262).
The only thing different is the output as now it says (many many times):

==========================================================[09/16/07-13:25:22]===
Error: Desklet contains errors. Please contact the author!

Well... of course I could contact myself ;) but I am pretty sure that there is a bug in the core about the plotter element (see duplicate bug).

Revision history for this message
Christian Meyer (chrisime) wrote :

I know, it hasn't been fixed yet, because I'm lazy. Lauri has a good idea how to do it. Won't be fixed in our next beta release.

Revision history for this message
Christian Meyer (chrisime) wrote :

assigning to me

Changed in gdesklets:
assignee: nobody → chrisime
importance: Undecided → Medium
status: New → In Progress
assignee: gdesklets-core-team → chrisime
Christian Meyer (chrisime)
Changed in gdesklets:
assignee: chrisime → gdesklets-core-team
Revision history for this message
MarioGonzalez (gonzalemario) wrote :

Should we mark this as INVALID? This is a old report.

Revision history for this message
Bjoern Koch (h.humpel) wrote :

AFAIK the output hasn't changed yet and the log file is still flooded when you use a plotter element.
But this might be fixed when we implement the new logging system.

Revision history for this message
Bjoern Koch (h.humpel) wrote :

Any news on this one ?

Changed in gdesklets:
assignee: Christian Meyer (chrisime) → gDesklets Core Team (gdesklets-core-team)
Revision history for this message
Bjoern Koch (h.humpel) wrote :

OK, this one has been bugging me too long now and it is still driving me nuts ;).

AFAIK there IS a bug in the plotter element (TargetPlotter.py) that is throwing the error message, but I just can't find it.
It is *heavily* flooding the log with one entry for every value you are adding to a plotter element.

Marking it HIGH and for the next release.

Changed in gdesklets:
importance: Medium → High
milestone: none → release-of-0.36.3
Revision history for this message
Bjoern Koch (h.humpel) wrote :

FINALLY I figured out what caused all the flooding in the logs when writing data to the plotter element.

In TargetPlotter.py the plotter element "generates" an SVG like this:
<svg><rect width="100" height="100" ... /></svg>
and passes it to TargetCanvas.py to render it.

But in TagetCanvas.py the root element of the SVG needs to have a width and a height attribute, otherwise the famous UserError (Error: Desklet contains errors. Please contact the author!) is raised. And as the root element is <svg> and it didn't have a width and a height attribute...

So now TarbetPlotter.py generates an SVG like this:
<svg width="100" height="100"><rect width="100" height="100" ... /></svg>
and the plotter element seems to be working fine without errors in the log ;).

Fix committed in rev. #144.

Changed in gdesklets:
status: In Progress → Fix Committed
Bjoern Koch (h.humpel)
Changed in gdesklets:
status: Fix Committed → Fix Released
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