Performance/Snappy/2012-08-02: Difference between revisions

From MozillaWiki
Jump to navigation Jump to search
(Created page with "=Snappy Aug 2 Status (no meeting this week)= ==Actions== * taras to speak with jst about measuring compartment overhead ==Incoming== * {{bug|778718}} startup regression * {{bug...")
 
 
Line 19: Line 19:


===Tab switch performance - jrmuizel===
===Tab switch performance - jrmuizel===
;Results from the past week
* was able to get a decent windows profile http://people.mozilla.com/~bgirard/cleopatra/?report=c14148bc43065cdfbe10b678cdd3c01ef195e2f6
* was able to get a decent windows profile http://people.mozilla.com/~bgirard/cleopatra/?report=c14148bc43065cdfbe10b678cdd3c01ef195e2f6
* haven't fully analyzed this, but about half is the front end and half in painting. It should be
* haven't fully analyzed this, but about half is the front end and half in painting. It should be possible to decent improvements in both parts
possible to decent improvements in both parts


===Better DOM event/task scheduling - nathan (telemetry)===
===Better DOM event/task scheduling - nathan (telemetry)===

Latest revision as of 20:57, 8 August 2012

Snappy Aug 2 Status (no meeting this week)

Actions

  • taras to speak with jst about measuring compartment overhead

Incoming

Projects

Various frontend bugs (ttaubert)

Results from the past week
  • worked on bug 728294 - Analyze cycle collection logs after test runs to detect leaks
Todo this week
  • finish bug 728294 - Analyze cycle collection logs after test runs to detect leaks
  • get bug 650968 (Enabling a Persona causes significant startup slowness) reviewed
  • get bug 753448 (preload newtab pages in the background) reviewed
  • get bug 779618 (make tabbrowser use the thumbnail service) reviewed

Tab switch performance - jrmuizel

Results from the past week

Better DOM event/task scheduling - nathan (telemetry)

Results from the past week
Todo this week
  • Respond to review feedback
  • Continue chasing down remaining test failures
  • Measure performance impact

Front-end - Gavin, Jared and Frank (Australis tab strip)

Results from the past week
Todo this week
  • paolo is going to investigate bug 699839 (sync IO in XPIProvider.jsm)

Fix cache - hurley, bbondy

Results from the past week
  • Finished this over the weekend: bug 777328 - Gather telemetry data for how much cache corruption reduction plan would help. Waiting on review. It is basically 1/2 of the actual work we'll need to do for reducing the cache corruption in bug 105843. It will also tell us by how much we can decrease the 10% cache corruption in Windows/OSX and 20% cache corruption in Linux.
Todo this week
  • After getting a review on bug 777328 I'll implement review comments until it gets landed, hopefully this week.

GC pause reduction - billm, jcoppeard

Results from the past week
  • bug 777919 - Free LifoAlloc chunks on background thread, instead of as part of the final IGC slice. This isn't a problem for most people, but for some people on OSX it can take anywhere from 50ms to 250ms or more.
  • bug 767209 - Make GC slices longer when not painting to avoid non-incremental GCs.
  • bug 778993 - Separate runtime's gcMallocBytes from compartment's gcMallocBytes, so we trigger less non-incremental GCs with many tabs open.

Startup optimizations - bbondy

Results from the past week
  • Finished reverting the prefetch deleting stuff
  • Now we always do preload on Windows because Telemetry showed that to be optimal, we are no longer gated on previous heuristics on IO activity.
Retrieved from "https://wiki.mozilla.org/index.php?title=Performance/Snappy/2012-08-02&oldid=459428"