On Tue, Aug 30, 2011 at 09:54:53AM -0700, Kevin D. Kissell wrote: > It could very well have been a QEMU issue. At the time, I did spend > a while staring at the diffs between the working and non-working > kernel sources and I was unable to spot anything obviously suspect. > > It makes me wonder, what is the state of SMTC kernels? Are they widely > > used and considered stable? > > Or is the SMP mode (1 TC per VPE) the common choice? > The virtual SMP mode is far more common. SMTC has the advantage > that it allows the maximum throughput to be extracted from a 34K > core - depending on the application/benchmark, the "sweet spot" > may be more than 2 concurrent threads - but it's less well maintained. Not to mention that SMTC was developed for a single 34K core. It has never been pimped up to support multi-core systems such as the 1004K which would add some considerable complexity. Ralf