3 ms·

I'm really curious how SharedArrayBuffer can be used to create high-precision timers. I'm also wondering what's now broken due to SharedArrayBuffer being remove

• indexerror 9y ago
  From page 10-11 of [1]: > A shared resource provides a way to build a real counting thread with a negligible overhead compared to a message passing approach. This already raised concerns with respect to the creation of a high-resolution clock [19]. In this method, one worker continuously increments the value of the buffer without checking for any events on the event queue. The main thread simply reads the current value from the shared buffer and uses it as a high-resolution timestamp. [1] https://gruss.cc/files/fantastictimers.pdf https://gruss.cc/files/fantastictimers.pdf
• syncsynchalt 9y ago
  By running a worker thread in a counting loop.
• Laremere 9y ago
  My understanding is: Have a web workers continuously increase a number, and save it to the SharedArrayBuffer. As long as the web worker is running, you have a steadily (enough) increasing timer that can be accessed by any other thread. It's not as precise, so relying on it makes things harder, but still usable.