On Tue, Jun 26, 2007 at 08:03:59AM -0700, Arjan van de Ven wrote: > Muli Ben-Yehuda wrote: > >How much? we have numbers (to be presented at OLS later this week) > >that show that on bare-metal an IOMMU can cost as much as 15%-30% more > >CPU utilization for an IO intensive workload (netperf). It will be > >interesting to see comparable numbers for VT-d. > > for VT-d it is a LOT less. I'll let anil give you his data :)
Looking forward to it. Note that this is on a large SMP machine with Gigabit ethernet, with netperf TCP stream. Comparing numbers for other benchmarks on other machines is ... less than useful, but the numbers themeselves are interesting. Cheers, Muli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
