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Published 20 hours ago • verified publisher icon xanmod

BOLT implementation

Open gitati16 opened this issue 2 years ago • 2 comments

Facebook has been working to implement a BOLT cclang optimizer. https://www.phoronix.com/scan.php?page=news_item&px=Facebook-BOLTing-The-Kernel in the future is it possible to recompile the kernel in order to have further optimization?

gitati16 avatar Sep 25 '21 15:09 gitati16

To keep the kernel stable and reliable, I stick with the default optimization methods. But yes, with more free time I will try this new optimization and make it available on the experimental channel.

xanmod avatar Sep 27 '21 16:09 xanmod

As BOLT uses profiles for optimizations, getting a great profile for desktop usage which is representative for most users might be a big challenge, as the profile could be CPU- and/or workload-specific.

ms178 avatar Sep 30 '21 19:09 ms178