On Tue, Mar 3, 2009 at 5:31 PM, <mwinter@brocku.ca> wrote:

In both runs the same computations are done (sequentially resp.
parallel), so the gc should be the same. But still using 2 cores is
much slower than using 1 core (same program - no communication).

Might there not be contention in the allocator/GC that's worsened by having two threads?

What happens with -O2?
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Sebastian Sylvan
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