29 Nov
2011
29 Nov
'11
8:21 a.m.
On Tue, Nov 29, 2011 at 1:47 PM, Kazu Yamamoto
Thank you for your suggestion. I guess these packages use MVar in deep inside and they are slow. Anyway, I will try.
Hi Kazu,
In the alioth shootout, on a quad-core Intel Q6600, 64-bit GHC does
about 5.3M context switches per second for the thread-ring benchmark;
that's 186 nanoseconds per context switch. I think the amount of
overhead will be reasonable here.
http://shootout.alioth.debian.org/u64q/benchmark.php?test=threadring&lang=ghc&lang2=java
I'd be quite interested to see whether stm beats MVars here or not.
G
--
Gregory Collins