Just a heads up that there have been recent developments with regards to gathering SPS profiles from multiple processes.
Bug 1103094[1] recently landed in mozilla-central, which makes it so that if a subprocess starts up _after_ profiling has already been started in the parent, then the subprocess will start profiling as well using the same features and settings as the parent. Bug 1193838[2], which is still on inbound, will make it so that if we are profiling while a process exits, we will hold onto that profile until the profiles are all requested by the parent process for analysis. Right now we hold these "exit profiles" in a circular buffer that's hardcoded at an arbitrary limit of 5 profiles. The upshot is that in many cases, if you start profiling, you'll not lose any profiles for subprocesses that start or finish before you choose to analyze the profiles. \o/ Just wanted to point those out. Thanks to BenWa for the reviews! Happy profiling, -Mike [1]: https://bugzilla.mozilla.org/show_bug.cgi?id=1103094 [2]: https://bugzilla.mozilla.org/show_bug.cgi?id=1193838 _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
