* Dave Sperry <dave_sperry@xxxxxxxx> wrote: > I have a dual core Opteron machine that exhibits poor UDP performance > (RT consumes more than 2X cpu) with the 2.6.21-rc5-rt5 as compared to > 2.6.21-rc5. Top shows the IRQ handler consuming a lot of CPU. update: even with acpi_pm clocksource on vanilla i can reproduce similar overhead using netperf. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html