ARM/N900/Performance

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(Difference between revisions)

Revision as of 07:17, 1 June 2011

Startup time of applications
Startup time of the device
Right after the homescreen has loaded, after the first boot, device is unusable for a while
Memory use
Slow I/O performance 2-20x slower than Maemo5 on N900
UI scrolling freezes for 1-2s from time to time

Results from Q/A http://wiki.meego.com/ARM/N900/QA/Performance
SunSpider 6.1s with GPE MiniBrowser
- This is actually pretty good result. Indicates that raw CPU perfomance is ok.
widgetsgallery -timedemo (TBD)

optimizing MTF packages, there might be some configuration options, etc.?
ramzswap trial
CGROUPS optimization, most likely still not done
eMMC performance investigation, see my bug, maemo is 2-20x faster?
last resort type of thing: taking NAND to use as swap (and destroying maemo installation)
adjust stack sizes
lower GLES ParamBuffer size
Remove unused applifed processes.
Merge meego-volume-control to systemui
cache some often used data in NAND and symlink there
tracker configuration
test overclock with known testing (from qa-tools guys perhaps)
real microsdhc tests based on class speed rating
- actually answer specific questions about how write/read speed effect perf
  - app startup times
  - general usage
  - media write times
  - cataloguing media

Profile startup of simple MTF, QML, and Qt apps
Profile memory use of simple MTF, QML, and Qt apps
Investigate configuration options for MTF
Investigate configuration options for Qt
Investigate configuration options for QML
Update MTF (libmeegotouch, mcompositor, home, system ui, etc. ) to get latest optimizations from upstream
Update Qt

@@ Line 7: / Line 7: @@
 * Memory use
 * Slow I/O performance 2-20x slower than Maemo5 on N900
+* UI scrolling freezes for 1-2s from time to time
 == Benchmark results ==