Hi, In the paper 'Semaphores in Plan 9' by Sape and Russ Cox, there was this note: "The performance of the semaphore-based lock implementation is sometimes much better and never noticeably worse than the spin locks. We will replace the spin lock implementation in the Plan 9 distribution soon."
As far as I can tell, this has not happened; is there any reason why? Are there any objections of the sem*-based locks? Thanks, -- vs
