25th March 2008

Attendees

ACTION: Edwin/Scott/or Jennifer to send out call for action items each Monday- these will be posted on the wiki
ACTION: Benjamin needs tom to review bug 423692
ACTION: Edwin: raise the priority of fixing string implementation -- The TT string optimization bug is https://bugzilla.mozilla.org/show_bug.cgi?id=411163
ACTION: Graydon: Per "callgrind" (call-graph profiler derived from "valgrind") - as hotspots are found, log bugs for them with profile data

ACTION: moh will look at GCbench test and suggest some optimizations. -- looked at memset and memcopy; optimizations are already in visual studio. will look at other platforms.
ACTION: tom will see if he can find additional GC/memset tests to recommend to moh and post to test directory. maybe GCheap?
ACTION: graydon will investigate Google "Summer of Code" agenda -- we're welcome to propose items to present.

Edwin

working on trace trees
- main strategy is "pruning" so trees don't get so "bushy"
how do people feel about meeting twice a month, instead of every week?
- moh suggests it would be better to keep weekly meeting on the calendars
- edwin, scott, or jennifer will send out a call for agenda items on mondays
  - if there are hot topics, we'll meet. if not, we won't.

Benjamin

Moh (Vtune)

vtune patch for central has been checked in
- instructions are posted on tamarin wiki

Karthik

been trying to profile sunspider benchmark
- string-unpack provided an opportunity for optimization -- 4-5% improvement
- other benchmarks seem a bit too small for profling (run for less than 1 second)
kathik will send patch to edwin, rick, or tom for review

Mark

had been preparing for a conference, where discussed the future of mozilla and tamarin.
- lots of excitement!
- interest in ironmonkey
will be catching up with compiler updates soon

Graydon

has identified some more hotspots
submitted patch for bug 424891 this week, which was more effective than all mini-tracing work so far. wow!
ACTION: edwin wants to raise the priority of fixing string implementation -- The TT string optimization bug is https://bugzilla.mozilla.org/show_bug.cgi?id=411163
steven is on vacation but interested in tracing
ACTION: Per "callgrind" (call-graph profiler derived from "valgrind") - as hotspots are found, log bugs for them with profile data