Re: [orca-list] slowness in gnome shell

[Peter Vágner <pvdeejay gmail com>]

Hello,

Here is a bug report Joanie has filled about two weeks ago she has 
detected after some of us started to report the same thing including 
huge slowness as overview is open.
Here is the bug: https://bugzilla.gnome.org/show_bug.cgi?id=756371

Greetings

Peter

On 26.10.2015 at 12:11 Alex ARNAUD wrote:
> Hi everybody!
> I've also noticed lags since migration to Gnome 3.18 but for me it's 
> with the Zoom applet. Maybe there is an issue in the accessibility stack.
>
> Best regards,
> Alex.
>
> On 26/10/2015 11:13, kendell clark wrote:
> > hi all
> > I'm writing in to report some lag when typing into gnome's activities
> > overview. Looking at debug logs there appears to be two factors to this.
> > One of them is that orca is getting absolutely hammered with events,
> > mostly object:stateChanged:showing from all the possible search results
> > as you type, followed by them disappearing and orca no longer being able
> > to query them. The other is that there seems to be a lag between when
> > orca focuses on a search result and when speech is generated. I have a
> > snippet of a debug log that demonstrates this. I'm searching for the
> > "alter aeon" item, which will launch the tintin mud client and connect
> > to alter aeon for playing. Warning, lots of output coming up.
> >
> > ##beginning of output ##
> > vvvvv PROCESS OBJECT EVENT object:state-changed:selected vvvvv
> > OBJECT EVENT: object:state-changed:selected detail=(1,0,0)
> >      app.name='gnome-shell' name='None' role='push button' 
> > state='enabled
> > focusable selected sensitive showing visible' relations='labelled by'
> > interfaces='Accessible Action Collection Component'
> > INFO: Getting script for object:state-changed:selected from [application
> > | gnome-shell]
> > INFO: Script for object:state-changed:selected from [application |
> > gnome-shell] is <orca.scripts.apps.gnome-shell.script.Script object at
> > 0x7f52ae579390>
> > LOCUS OF FOCUS: app='gnome-shell' name='' role='push button'
> >                  event='object:state-changed:selected'
> > BRAILLE: update disabled
> >
> > PREPARATION TIME: 0.0004
> > generate speech for unfocused app.name='gnome-shell' name='None'
> > role='push button' state='enabled focusable selected sensitive showing
> > visible' relations='labelled by' interfaces='Accessible Action
> > Collection Component'
> > (args={'formatType': 'unfocused', 'role': <enum ATSPI_ROLE_PUSH_BUTTON
> > of type AtspiRole>, 'mode': 'speech', 'recursing': True, 'priorObj':
> > <Accessible object at 0x7f52af20a990 (AtspiAccessible at 0x18ba830)>})
> > using 'oldAncestors + newAncestors + labelAndName + expandableState +
> > roleName + availability + (mnemonic and (pause + mnemonic + lineBreak)
> > or []) + accelerator + newNodeLevel + unselectedCell + clickable +
> > hasLongDesc + (tutorial and (pause + tutorial) or []) + description'
> > GENERATION  TIME: 0.0003  ---->  oldAncestors=[]
> > script_utilities.commonAncestor...
> > ...script_utilities.commonAncestor
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > Object deemed to be for layout purposes only: [panel | ]
> > GENERATION  TIME: 0.0105  ---->  newAncestors=[]
> > GENERATION  TIME: 0.0009  ---->  labelAndName=['Alter Aeon', {'rate':
> > 75.0, 'family': {'name': 'max', 'locale': 'en', 'dialect': 'us'},
> > 'average-pitch': 5.0}]
> > GENERATION  TIME: 0.0002  ---->  expandableState=[]
> > GENERATION  TIME: 0.0002  ---->  roleName=['push button', {'rate': 75.0,
> > 'family': {'name': 'max', 'locale': 'en', 'dialect': 'us'},
> > 'average-pitch': 5.0}]
> > GENERATION  TIME: 0.0001  ---->  availability=[]
> > script_utilities.getKeyBinding: ['', '', '']
> > GENERATION  TIME: 0.0003  ---->  mnemonic=[]
> > GENERATION  TIME: 0.0001  ---->  accelerator=[]
> > GENERATION  TIME: 0.0003  ---->  newNodeLevel=[]
> > GENERATION  TIME: 0.0001  ---->  unselectedCell=[]
> > GENERATION  TIME: 0.0001  ---->  clickable=[]
> > GENERATION  TIME: 0.0001  ---->  hasLongDesc=[]
> > GENERATION  TIME: 0.0001  ---->  tutorial=[]
> > GENERATION  TIME: 0.0001  ---->  description=[]
> > COMPLETION  TIME: 0.0142
> > generate speech results:
> >    Alter Aeon
> >    {'rate': 75.0, 'family': {'name': 'max', 'locale': 'en', 'dialect':
> > 'us'}, 'average-pitch': 5.0}
> >    push button
> >    {'rate': 75.0, 'family': {'name': 'max', 'locale': 'en', 'dialect':
> > 'us'}, 'average-pitch': 5.0}
> > SPEECH OUTPUT: 'Alter Aeon push button'
> > TOTAL PROCESSING TIME: 0.0161
> > ^^^^^ PROCESS OBJECT EVENT object:state-changed:selected ^^^^^
> >
> >
> > ##end of output##
> >   This doesn't sound like a large delay, but imagine a delay of this
> > every time you arrow among search results, or among anything in the
> > activities overview for that matter. If you press super+a to view the
> > installed applications, you'd see a similar delay when arrowing among
> > the results. Ditto when arrowing among the open windows in the
> > activities overview and applications in the dash. I suspect part of this
> > is due to that  bug joanie filed against gtk+, but part of it might be
> > either orca or gnome shell. I'm still trying to figure out which. Anyone
> > else have any ideas? This might also explain some of the verbosity when
> > navigating among items in mate's panel, though this is likely a separate
> > issue entirely.
> > Thanks
> > Kendell clark
> >
> > _______________________________________________
> > orca-list mailing list
> > orca-list gnome org
> > https://mail.gnome.org/mailman/listinfo/orca-list
> > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > Orca documentation: https://help.gnome.org/users/orca/stable/
> > GNOME Universal Access guide: 
> > https://help.gnome.org/users/gnome-help/stable/a11y.html
> > Log bugs and feature requests at http://bugzilla.gnome.org