[Haskell-cafe] ANNOUNCE: Sun Microsystems and Haskell.org joint project on OpenSPARC

Duncan Coutts duncan.coutts at worc.ox.ac.uk
Sat Jul 26 00:31:19 EDT 2008

On Sat, 2008-07-26 at 03:02 +0200, Mitar wrote:
> Hi!
> > If we spend so long blocked on memory reads that we're only utilising
> > 50% of a core's time then there's lots of room for improvements if we
> > can fill in that wasted time by running another thread.
> How can you see how much does your program wait because of L2 misses?
> I have been playing lately with dual Quad-Core Intel Xeon Mac Pros
> with 12 MB L2 cache per CPU and 1.6 GHz bus speed and it would be
> interesting to check this things there.

Take a look at the paper that Ben referred to


They use hardware performance counters.


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