| OpenOffice.org Performance Activities | |||
| Last update: 2005-11-03, Malte Timmermann | |||
| Area | Task | Status | Comment |
| Start-Up | Accessing Linguistic, first start after installation | DONE | Some linguistic is 'installed' on start-up, when found in office installation. Done: 8s => 1,5s |
| Start-Up | Handling of configuration items | DONE | Some items are not used correctly (ref counting), so created more often than needed |
| Start-Up | Recovery service, optimize filter detection | DONE | Not needed anymore, new configuration |
| Start-Up | Change dynamic link sort order | STARTED | Might improve startup, Solaris only feature? |
| Start-Up | Optimize Font List Creation | STARTED | A lot of things are done in start-up here... |
| Start-Up | Evaluate usage of config items in start up | STARTED | Remove double caching? Unnecessary items created? FontConfigItems in VCL will be changed... |
| Start-Up | Start-Up Pattern / Performance Linux/Solaris | STARTED | Proportion IO/Code/Wait?, LibraryLoader? |
| Start-Up | Native Loader: Splashscreen faster, pipe communication faster | STARTED | Doesn't improve start-up much, but quick user feed back (splash screen ) and double clicking files in explorer opens them faster. |
| Start-Up | Start-Up Pattern / Performance Windows | STARTED | Evaluate: Libraries, Files, IO, Code |
| Start-Up | Rebase/Bind, check for gaps | PLANNED | Some Windows tooling |
| Start-Up | Prelinc (Linux, Evaluation) | PLANNED | Evaluate effect of prelinc |
| Start-Up, Load/Save | Buffered IO for OSL (Evaluation) | PLANNED | Some code might use OSL file functions directly, not buffered |
| Start-Up | Optimize FontListConfigItem/FontSubstCongItem | PLANNED | Don't read all languages when not needed |
| Start-Up | Precompiled image list for toolbars | PLANNED | Helps also size of user/config, Office on Server. Do in post process? |
| Start-Up | Configuration, check for more improvements | PLANNED | Dirty flag and version stamp, instead of file stat? share/registry, share/unopackage |
| Start-Up | Configuration, known possible improvements | PLANNED | See issue i52328 |
| Start-Up | Optimize Menu Implementation | PLANNED | MenuBar first, sub menus on demand, better in background |
| Start-Up | Optimize SvtLinguConfig | PLANNED | Don't fill all members in start-up, get data on demand |
| Start-Up | Shorter symbols (Linux/Solaris), Evaluation | LATER | Shorten symbols in libraries, makes searches faster, but makes problems with debugging, crash reports |
| Start-Up | Template component | LATER | Scanning lot of files, provide configuration snippets? |
| Start-Up | Split Toolkit library | LATER | The UnoControls are only needed when we have form controls, and we would have less exports |
| Start-Up | Design changes in SFX (startup phase) | LATER | Andreas has details in mind... |
| Start-Up | Change toolbar controllers to UnoControllers | LATER | May be it doesn't help much for performance, but also for getting rid of old code |
| Start-Up | Move Startup code from SFX to Framework | LATER | For avoiding SFX library in backing window |
| Start-Up, Memory | Size of RDB files, memory consumption | STARTED | Structure of rdb files leads to unnecessary large files and memory consumption |
| Start-Up | File order on disc | STARTED | Order files on disc so it matches the access order when starting OOo |
| Load/Save | Optimize Load/Save OpenDocument files, OLE external formats | DONE | Copy packed streams, instead of unpacking source, packing into destination storage |
| Load/Save | Optimize Load/Save OpenDocument files, OLE own formats | STARTED | Have to be handled a little bit different then external OLE... |
| Load/Save | Optimize Load/Save OpenDocument Presentation | STARTED | |
| Load/Save | Optimize Load/Save PowerPoint | STARTED | convert later, load lazy... |
| Load/Save | Optimize Load/Save OpenDocument Spreadsheet | STARTED | |
| Load/Save | Optimize Load/Save OpenDocument Text | STARTED | |
| Load/Save | Optimize Save OpenDocument files, Images | PLANNED | If image didn't change, quickly copy picture stream, see OLE optimization |
| Load/Save | Improve graphic identification in GfxMgr | PLANNED | Faster checksum for images, and only when necessary |
| Load/Save | Automatic Styles for character attributes | PLANNED | They are styles in XML anyway, so could quickly be assigned |
| Load/Save | Optimize Load/Save Excel | PLANNED | |
| Load/Save | Progressbar optimizations | PLANNED | Less reschedules |
| Load/Save | Expat-wrapper/SAX optimizations, SAX? | PLANNED | Optimizations here can help all applications |
| Load/Save | Optimize Load/Save Word | LATER | Wait for new filter component |
| Load/Save | Optimize Load/Save OpenDocument Chart | LATER | Wait for new Chart |
| Rendering/Layout | Slide Sorter, create previews faster | STARTED | Changes in framework, bigger cache, configurable size |
| Presentation | Presentation mode (Canves, BaseGfx) | STARTED | VCL Canvas? Software renderer based on X11? |
| Presentation | SlideShow first start | STARTED | HW detection, DirectX, ... |
| Rendering | Drawing Engine architecure and performance | STARTED | Evaluations done. Primitives Part I: Minimum in Paint via VC, then rest of Paint, then change to Canvas |
| Rendering/Layout | Get previews from image files | STARTED | Don't read/create full image, if only preview or smaller image is needed |
| Rendering/Layout | Taskpanel, create thumb nails more quickly | STARTED | Search template files, get previews. Check: Multiple mimetype detection? One when gathering all files (framework), an other when sorting out the needed ones (impress) |
| Presentation View | Changing views should be faster | PLANNED | |
| Runtime | Basic Performance | PLANNED | Evaluate, it's unclear if some macros are slow because of Basic Runtime, or because of API implementations |
| Rendering | Improve Bitmap painting in GfxMgr | LATER | Current implementation with VCL is quite slow sometimes |
| Rendering/Layout | Remove unnecessary font cache | LATER | Also affects memory consumption |
| Rendering/Layout | Mailmerge with large databse | LATER | CCTOR for SwDock |
| Runtime | Drag&Drop, Clipboard | LATER | DrawingObject, OLE, should be done on demand. OLE: A lot of file copies are done on Edit/Copy, then again on Edit/Paste... |
| Layout | Change Maser Page in big document (Evaluate) | LATER | How long does it take to re-render all pages when the master page changes? |
| Layout | Layout Performance with hidden change tracking | LATER | When change tracking is not visible, layouting becomes quite slow... |
DONE = done, STARTED = started / in progress, PLANNED = planned in near future, LATER = Might be done some time
If you would like to work on one of these things, please write an email to Malte Timmermann, so he can provide more details and can point you to people who are the experts in that specific area.
