On Wednesday, December 18, 2002, at 07:34 PM, Ben Russo wrote:
intel seems to think Linux still needs optimizing for Hyper-Threading.I've also heard that the recent Xeon's have that "hyperthreading" feature... Supposedly makes threaded programs and heavy multitasking work better. I saw some benchmarks on a website that mentioned that for specific circumstances, with hyperthreading enabled, there was up to a 30% increase in performance on the same hardware as compared with no hyperthreading.
(see http://www.intel.com/support/platform/ht/os.htm) If this is so it
would be interesting to see a fully optimized Linux vs one that isn't.
Anecdotal note: where I work we have a dual Xeon system that would not
behave until Hyper-Threading support was disabled. HT is not necessarily
the root of the problem, mind you. Disabling it got the system stable, though,
and right now nobody has spare cycles to poke at the system extensively.
~Rob
--
Rob Saul.|.wyrdATtriskelionDASHnovaDOTcom.|.prohibitions void where offered
Programming is an art form that fights back. | de recta non tolerandum sunt
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