Tamarin:WeeklyUpdates: Difference between revisions

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= 8th January 2008 =
= 15th January 2008 =


== Attendees ==
== Attendees ==


* Tom
 
* Steven
* Erik
* Ben
* Moh
* Jason
* Jason
* Brent
* Marsha
* Erik
* Brent
* Edwin
* Benjamin
* Jeff
* Ed
* Rick
* Rick
* Marsha
* Steven
* Moh
* Jeff
* Mark
* Seo
* Brendan


== Announcements ==
== Announcements ==


* Tamarin summit February 1st at Adobe – SF
* Tamarin summit February 1st at Adobe – SF


== Updates ==
== Updates ==


'''Moh'''
'''Jason (ActionMonkey)'''
* Land ActionMonkey changes to mozilla-central.
* Incremental marking
* Thread safe
* Performance number
* tracking bug:
* mozilla-central is the trunk in hg


* Escalated release of vtune
'''Steven'''
* Runtime dll added to standard release of vtune
* Need contact person at mozilla, expert in licensing, as a contact. Suggest Brendan.
* Name of dll and header
* Release team of VTune in Russia. Via vtune update.
* Analyzer/bin/Jitpi.dll


* TT now building on linux


'''Marsha'''
'''Moh (Vtune)'''


* additional modification of source code
* jit profiling api
* release debugger build of tamarin
* step 1
* variable overhead sometimes as high ~50%, reduced to ~20%, but wondering if someone can help reduce the overhead
** account: premier account,
* Tom and Edwin have volunteered
** request: "JIT profiling API of VTUNE"
* Open bug and post patch for Tom and Edwin to see
** contact: Gary Carleton
* step 2 - shipped with vtune
* step 3 - talk about open source


'''Mark'''
'''Marsha (Instrumentation)'''


* chess app should be up and running
* posted a patch for changes needed to invoke Vtune from TC
* brent owns it for now
* an update is coming


'''Edwin'''


* optimistic binding pending for TT
== Summit Topics ==
* about 30% are running as fast for TC
* Rick: is comparision fair (e.g. sse on or off in TC)
* 5% to 25% in jitted code
* make better by calling helper less of ten
* Brendan: how can we help; maybe with bugs
* Bugs are being moved into bugzilla so take a look


'''Steven'''


* linux build of TT in process; could use help
* Vtune profiling
* hopefully have something working in a day or two
* Code walkthrough of the JIT - what optimizations are applied (or not applied)


'''Benjamin'''


* question about strings
* bug about Utf8 and Utf16
* mozilla might want to share string class with tamarin
* BE: might want to share interface rather than implementation
* BE: Utf8 is generally a win
* ES: we might consider an implementation that allows multiple encodings


= Older meetings =
= Older meetings =

Revision as of 22:46, 15 January 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)
  • Meeting ID: 8262746 (TAMARIN)
    • California: 408-536-9900
    • Toll-Free(US & Canada): 877-220-5439
    • International: +1-408-536-9900
  • Duration: 60 minutes
  • join irc.mozilla.org #tamarin for attendence taking and questions


15th January 2008

Attendees

  • Erik
  • Moh
  • Jason
  • Marsha
  • Brent
  • Benjamin
  • Ed
  • Rick
  • Steven
  • Jeff
  • Seo

Announcements

  • Tamarin summit February 1st at Adobe – SF

Updates

Jason (ActionMonkey)

  • Land ActionMonkey changes to mozilla-central.
  • Incremental marking
  • Thread safe
  • Performance number
  • tracking bug:
  • mozilla-central is the trunk in hg

Steven

  • TT now building on linux

Moh (Vtune)

  • jit profiling api
  • step 1
    • account: premier account,
    • request: "JIT profiling API of VTUNE"
    • contact: Gary Carleton
  • step 2 - shipped with vtune
  • step 3 - talk about open source

Marsha (Instrumentation)

  • posted a patch for changes needed to invoke Vtune from TC
  • an update is coming


Summit Topics

  • Vtune profiling
  • Code walkthrough of the JIT - what optimizations are applied (or not applied)


Older meetings

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