On Mon, 2013-07-15 at 13:13 +0800, Michael Wang wrote: > Hi, Davidlohr > > On 07/09/2013 10:52 AM, Michael Wang wrote: > > On 07/09/2013 10:36 AM, Davidlohr Bueso wrote: > > [snip] > >>> 2. is the 3.10-rc5 in image also disabled the hyperthreading? > >> > >> Yes, I happened to have data already collected for 3.10-rc5. While the > >> runs with this patch was with -rc7, unless there was some performance > >> related commit I missed, I don't think the performance difference was > >> because of that. > >> > >>> 3. is the v3 patch set show the same issue? > >> > >> Uhmmm shoot, I didn't realize there was a v3, sorry about that. > >> > >> /me takes another look at the thread. > > > > V3 will reduce the overhead, should make things better, especially when > > workload is high and platform is big (your box is really what I desired > > ;-), honestly). > > > > And if it is possible, comparison based on the same basement will be > > better :) > > I have done some tests with reaim high_systime workfile, and I could not > find regression on my box (the tool itself has some issue, but I got the > results), v3 works well.
Sorry for the delay. I'm glad you reminded me since I already had the data. > > I suppose the issue have been addressed, but please let us know if v3 > also show regression on your box, we could try to solve the problem ;-) It has, high_systime no longer shows a hit and all workloads remain basically the same. Tested-by: Davidlohr Bueso <davidlohr.bu...@hp.com> Thanks. > > Regards, > Michael Wang > > > > > Regards, > > Michael Wang > > > >> > >> Thanks, > >> Davidlohr > >> > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majord...@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/