Difference between revisions of "Performance"
From Apache OpenOffice Wiki
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* .rdb files - loads of empty space, mmap + random access pattern | * .rdb files - loads of empty space, mmap + random access pattern | ||
| − | == Helpful | + | == Helpful Tooling and Resources == |
* [[cold-start-simulator|Linux/cold-start]] simulator | * [[cold-start-simulator|Linux/cold-start]] simulator | ||
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* [[speedprof]] - a quick / hackish sampling full-stack-trace profiler & visualisation tool | * [[speedprof]] - a quick / hackish sampling full-stack-trace profiler & visualisation tool | ||
* [[APPR]] - a performance regression tool suite | * [[APPR]] - a performance regression tool suite | ||
| + | * [[Performance Related Test Documents]] | ||
== Approaches being worked on == | == Approaches being worked on == | ||
Revision as of 19:20, 9 February 2006
As George Ou has famously said, "It doesn't matter how fast the CPU is, OpenOffice is just bloated."
Contents
Known areas for improvement
system issues
- Linux / Linking - relocation processing is very slow ( ogg video, odp slides ) two possible ways to fix that
- re-ordering symbol & elf hash tables to improve cache locality, lots of good & simple ideas here.
- -Bdirect implementation [1] - gaining little traction.
- Linux / I/O scheduling & pre-loading is poor
General I/O & memory issues
- Configuration information scattered across many files
- UI configuration - tons of scattered files
- .rdb files - loads of empty space, mmap + random access pattern
Helpful Tooling and Resources
- Linux/cold-start simulator
- relocstat - dump relocation data
- RTL_LOGFILE - export RTL_LOGFILE=/tmp/foo
- valgrind - debug / trace memory usage
- speedprof - a quick / hackish sampling full-stack-trace profiler & visualisation tool
- APPR - a performance regression tool suite
- Performance Related Test Documents
Approaches being worked on
- Config refactor - reduce seeks/files, better caching
- Disk Access
- -Bdirect linking
- FIXME - Malte - we should really have your list embedded here ...
Other Pages
This Wiki page should become the ultimate authority on performance issues. Meanwhile, here are links to performance informationat other places
