>>>>> On Wed, 19 Jan 2005 10:34:30 +1100, Nick Piggin <[EMAIL PROTECTED]> said:
Nick> David I remember you reporting a pipe bandwidth regression,
Nick> and I had a patch for it, but that hurt other workloads, so I
Nick> don't think we ever really got anywhere. I've recently begun
Nick> having another look at the multiprocessor balancer, so
Nick> hopefully I can get a bit further with it this time.
While it may be worthwhile to improve the scheduler, it's clear that
there isn't going to be a trivial "fix" for this issue, especially
since it's not even clear that anything is really broken. Independent
of the scheduler work, it would be very useful to have a pipe
benchmark which at least made the dependencies on the scheduler
obvious. So I think improving the scheduler and improving the LMbench
pipe benchmark are entirely complementary.
--david
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