In message: <43E45BD8.7070708_at_fer.hr> Ivan Voras <ivoras_at_fer.hr> writes: : Andrew Gallatin wrote: : > Why dooes machdep.cpu_idle_hlt=1 drop my 10GbE network rx : > performance by a considerable amount (7.5Gbs -> 5.5Gbs)? : : For what it's worth, here are results of unixbench's "context1" : benchmark on an old P3 SMP with and without cpu_idle_hlt (6-stable): When ACPI CPU states were coming into the tree, there was discussion that they had been invented to provide a lower energy idle as well as a faster transition from the idle state to something else. I think that these benchmarks show this effect rather dramatically. WarnerReceived on Sat Feb 04 2006 - 15:21:16 UTC
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