simonmar 2004/02/25 09:35:45 PST
Modified files:
ghc/rts Schedule.c
Log:
Feeble performance hack for the threaded RTS: instead of
allocating/releasing a new condition variable for each new call-in, we
just cache one in the RTS and re-use it for the next call.
On a little test I have here which does lots of call-ins on Windows,
this reduces the slowdown for using the threaded RTS from a factor of
7-8 down to a factor of 4-5. I'm aiming for a factor of 2 or better...
Revision Changes Path
1.185 +17 -2 fptools/ghc/rts/Schedule.c
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