Messages in this thread | | | Date | Fri, 8 Jan 2010 15:46:26 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [RFC][PATCH 6/8] mm: handle_speculative_fault() |
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On Fri, 8 Jan 2010, Linus Torvalds wrote:
> We worried about the effects of fair spinlocks when introducing the ticket > locks, but nobody ever actually had a load that seemed to indicate it made > much of a difference, and we did have a few cases where starvation was a > very noticeable problem.
And I made the point that starvation was a hardware issue due to immature cacheline handling. Now the software patchup job for the hardware breakage is causing regressions for everyone.
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