Tamarin:WeeklyUpdates: Difference between revisions

Tamarin:WeeklyUpdates (view source)

Revision as of 21:48, 24 June 2008

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Sunterberg

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 * (Andreas) Moving more filters (e.g., CSE) into nanojit
-= 17th June 2008 =
+= 24th June 2008 =
 == Attendees ==
-*Adobe: Steven, Vladimir, Edwin
+*Adobe: Scott, Steven, Edwin, Jeff, Dan, Mason
-*Intel: Moh, Carmen, Jungwoo, Mingqiu
+*Intel: Moh, Carmen, Jungwoo
-*Mozilla: Brendan, jorendorff, Andreas Gal
+*Mozilla: Brendan, Jordan, Andreas, Rob, Jason, Aaron, Ben
+*Other: Mark
 == Updates ==
-*Mingqiu talked about two optimizations offered for TC: Array.unshift and some prefetching in String code.
+*(Edwin) Trace tree update - rebuilding pipeline state and cost of recompilation. Now handles merge notes. Optimizing it now off of previous branches. Constant recompiling is more than expected, so will continue to investigate.
-** The unshift opt
+** Can turn trace trees on and it will pass the tests, but the performance is worse, so currently are leaving it off.
-** The prefetch opt
+** Pipelining is now starting to pay off!
-***Those two opts show good performance improvement on sunspider and JS speed. More details at
-**** https://bugzilla.mozilla.org/show_bug.cgi?id=438889
-**** https://bugzilla.mozilla.org/show_bug.cgi?id=438881
-*Edwin talked about the freshly-pushed code that pipelines trace-recording and assembling, giving background about why we did it and how it works — he’s going to write up more info about how to interpret the new verbose mode. There was some discussion as to how the pipeline might be parallelized.
+*(Andreas) Compartmentalizing nanojit for use by tracemonkey as well as TT
+** It was a small namespace change.  Add a delete operator?
+** Should we start a wiki page to track these items?  Or Bugzilla?  ACTION: Andreas will write something up and send out a link.
+** Moving more filters (e.g., CSE) into nanojit
-*Edwin & Steven mentioned that Michael Daumling’s rewrite of TT String is looking good and will probably be ready by end of week.
+*(Mark) Wondering about ASC on TT.
+** ACTION: Dan will touch base with Mark on this to assist.
-*Edwin mentioned that we are hopefully about a week away from trace trees being ready to push.
 = Older meetings =