| Headlines |
| 2024-08-13 |
Haiku ports Firefox |
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The Haiku project has been making progress on multiple fronts. Developer x512 recently posted they have a mostly-functioning port of the Firefox web browser and offered screenshots of Firefox running on the open source operating system.
Meanwhile the project's monthly newsletter talks about performance and profile improvements: "Haiku has a built-in CPU time profiler (just called profile.) Unfortunately, it's been rather broken for years, regularly outputting data that was either empty or just didn't make any sense. In order to use it to try and track down some of the other bottlenecks, I spent a bunch of time fixing various bugs in it, as well as the debugger support code that it relies on to function, including to stack trace collection, buffer flushing, symbol lookup, scheduler callbacks, image load reporting, and more. I also implemented userspace-only profiling (ignoring kernel stack frames entirely), fixed some output buffer sizing issues, and fixed a race condition in thread resumption that also affected strace. While it isn't perfect, it's much better than before, and can now be used to profile applications and the kernel to see where CPU time is being spent; and notably it now checks the thread's CPU time counters to detect if it “missed” profiling ticks, and if so how many." |
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