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A comment on Improving Firefox Responsiveness on macOS. Parent comment

Re:Improving Firefox Responsiveness on macOS by cbsmith on Monday October 10, 2022 @03:51PM (#33155702)
Per the documentation (https://github.com/apple/darwin-xnu/blob/main/bsd/kern/sys_u...), it looks like ulock_wait might be one of the XNU primitives that supports os_unfair_lock.
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