>>> On Wed, Dec 5, 2007 at 6:44 AM, in message <20071205114438.GC6143@xxxxxxx>, Ingo Molnar <mingo@xxxxxxx> wrote: > * Gregory Haskins <ghaskins@xxxxxxxxxx> wrote: > >> However, that said, Steven's testing work on the mainline port of our >> series sums it up very nicely, so I will present that in lieu of >> digging up my -rt numbers unless you specifically want them too. Here >> they are: > > i'm well aware of Steve's benchmarking efforts, but i dont think he's > finished with it and i'll let him present the results once he wants to > announce them. I asked about the effects of the "2-d" patch in isolation > and i'm not sure the numbers show that individual patch in action. Ah, sorry if I was not clear. What I was trying to show was that you can compare "gh" to "cpupri" to see the effects of the 2-d patch in isolation (*) in Steven's tests. I believe it shows a positive impact on some tests, and a negligible impact on some tests. As long as we dont have a regression somewhere, I am happy :) (*) Yes, "cpupri" in this test also has patches 21-22 (root-domain). However, note that Steven is not configuring cpusets, and therefore the root-domain code is effectively marginalized in this data. Its not a pure isolation, no. But the results of my tests with *true* isolation present similar characteristics, so I felt they were representative. > > in any case, you are preaching to the choir, i wrote the first > rt-overload code and it's been in -rt forever so it's not like you need > to sell me the concept ;-) But upstream quality requirements are > different from -rt and we need to examine all aspects of scheduling, not > just latency. Understood and agree. I designed the subsystem with the overall system in mind, so hopefully that is reflected in the numbers and the review comments that come out of this. :) >In any case, i'll wait for the rest of Steve's numbers. Sounds good. Ill try to dig up my 4/8-way numbers as well for another data point. Thanks for taking the time to review all this stuff. I know you are swamped these days. -Greg - 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
