Had a play with Claude Fable 5 to see if it could improve on my previous CTF performance work.
https://github.com/jperkin/illumos-gate/commits/ctf-performance/
Yeh, it gained another 33%, as well as finding some correctness issues. Now 42x faster than baseline, with 21x reduction in system time.
In the spirit of developing in the open, here's the repo for the #dtrace inspired #commonlisp observability framework:
Can I write a race detector in DTrace?
For sure!
https://gaultier.github.io/blog/detect_data_races_with_dtrace.html
New blog article!
Detecting goroutine leaks with DTrace: https://gaultier.github.io/blog/detecting_goroutine_leaks_with_dtrace.html
@ahl @bcantrill Thanks for not waiting until after your break to post it, that was a doozy.
Listeners should note this mentions use of #dtrace not just through its anonymous tracing feature, but in fact through its speculative tracing feature as well.
Starting to get back into illumos/arm64. Current weekend project is getting DTrace working. Some initial progress:
# dtrace -n 'profile-997{@[stack()] = count();}' | tail
dtrace: description 'profile-997' matched 1 probe
genunix`taskq_thread+0x2e8
genunix`thread_exit
6
0xf9400e80
391
0xd53b4221
genunix`thread_exit
3779
Working fbt provider will be a bit harder...
Jonathan Perkin
Marce Coll
Philippe Gaultier
ottO
Pierre Lebeaupin
rain 🌦️