On 09/03/08 17:24, Vikram Hegde wrote: > Hi, >> >> No, it's a measurable value- not subjective. > I wasn't talking about the performance number but rather about > "acceptable". Some may argue that for certain drivers the slight > reduction in performance is more than compensated by the several > benefits that an IOMMU offers (note that SPARC side has been > functioning with IOMMU without complaints about performance). For > certain drivers it may turn out that the owners find the performance > reduction undesirable. It all depends on the driver owners.
And the P-team for the platform. > >>> We have always planned to provide the ability to disable the IOMMU >>> on a per driver basis. Does that address your performance concerns ? >>> >> Yes, but as this is a spec in advance of actual implementation, could >> you make sure that 'plan' is on record? > ok, I will send an addendum to the spec shortly. > Thank you.
