Revision as of 16:13, 20 May 2008

These updates concern Tamarin and related projects only.

Meeting Details

2:00pm Pacific Time (21:00 UTC) on Tuesdays
- (5PM Eastern US, 11PM Oslo, 6AM (Wed) Seoul, 7AM (Wed) Melbourne)

Next meeting's Agenda Items:
- (Moh/Intel)-
  - Significant performance improvements through a shortcut in String::equalsUTF8
    - https://bugzilla.mozilla.org/show_bug.cgi?id=433799
  - runtests.py script is unfair
    - https://bugzilla.mozilla.org/show_bug.cgi?id=434118
  - Does it make sense to have a fast post-codegen pass to do code-alignment among other peephole optimizations? Starting points? Jungwoo is exploring.
  - Shengnan needs LIR_file and LIR_line in TT to enable VTune. Starting points?
    - https://bugzilla.mozilla.org/show_bug.cgi?id=432737

Last meeting's Agenda Items:
- (Moh/Intel)-
  - Major performance gains from optimized doubleToInt32(double d) using integer code. https://bugzilla.mozilla.org/show_bug.cgi?id=412978
  - CMOV is no longer considered harmful! A discussion on the performance considerations of using CMOV.
- (Mark Hammond)-
  - How to best evangelize Tamarin through ScreamingMonkey?

6th May 2008

- Steven (Adobe)-
  - Working on a patch for an interpreter speed-up. Currently is only working on Mac. Patch should be viewable later today.
    - Progress is being made!

- Rick (Adobe)-
  - Is continuing to work on trees. Expects to land patch soon and go over updates in the next few weeks.

- Jim (Mozilla)-
  - Update on regression of performance. In order for Tamarin to get into Mozilla, then patches can’t land if they slow things down. Take a benchmark approach and get TT to be on par w/ SpiderMonkey- then it can be switched over.
    - Mozilla will contribute speed optimizations to Adobe. Adobe needs to be comfortable making optimized code “clean” going forward, while making sure the numbers hit.
      - Adobe is building out its own internal performance measurements now. Going forward, make sure Mozilla and Adobe have agreement on benchmarks.

- Tom (Adobe)-
  - Has posted a wiki page on Hosting APIs that he wants Mozilla to review. He will also send around to the list.

- Mark Hammond-
  - How to best evangelize Tamarin through ScreamingMonkey? How to get folks using it?
    - The IE DOM works as hopes (minus some expected issues). Can we evangelize and package? Yes, but who can assist? John R and other evangelists can blog on this. Brendan to follow-up with Mark on this.

@@ Line 10: / Line 10: @@
 * join irc.mozilla.org #tamarin for attendence taking and questions
-* '''Next week's Agenda Items:'''
+* '''Next meeting's Agenda Items:'''
+** (Moh/Intel)-
+*** Significant performance improvements through a shortcut in String::equalsUTF8
+**** https://bugzilla.mozilla.org/show_bug.cgi?id=433799
+*** runtests.py script is unfair
+**** https://bugzilla.mozilla.org/show_bug.cgi?id=434118
+*** Does it make sense to have a fast post-codegen pass to do code-alignment among other peephole optimizations? Starting points? Jungwoo is exploring.
+*** Shengnan needs LIR_file and LIR_line in TT to enable VTune. Starting points?
+**** https://bugzilla.mozilla.org/show_bug.cgi?id=432737
+* '''Last meeting's Agenda Items:'''
 ** (Moh/Intel)-
 *** Major performance gains from optimized doubleToInt32(double d) using integer code. https://bugzilla.mozilla.org/show_bug.cgi?id=412978