Subj : RCU on OSX
To   : comp.programming.threads
From : Joe Seigh
Date : Mon Mar 14 2005 08:17 am

Playing with testcase preemption settings, I can get the
read rate to go in excess of 100k per second *per* thread
at a reduction of 1/2 to 1/3 the max write rate vs. a max
of about 900 reads or writes per second per thread in the
mutex version.

On Linux, the same settings only get you a read rate of a
few thousand reads per sec per thread vs. the mutex version
just hangs from writer starvation.

Even considering the scheduling and preemption hackery, that's
pretty awesome throughput.  Definitely 11 on the performance
scale.

-- 
Joe Seigh

.