On Fri, Nov 16, 2012 at 04:56:26PM +0100, Ingo Molnar wrote: > > * Mel Gorman <mgor...@suse.de> wrote: > > > It is important to know how this was configured. I was running > > one JVM per node and the JVMs were sized that they should fit > > in the node. [...] > > That is not what I tested: as I described it in the mail I > tested 32 warehouses: i.e. spanning the whole system. >
Good (sortof) because that's my preferred explanation as to why we are seeing different results. Different machines and different kernels would be a lot more problematic. > You tested 4 parallel JVMs running one per node, right? > 4 parallel JVMs sized so they they could fit one-per-node. However, I did *not* bind them to nodes because that would be completely pointless for this type of test. I've queued up another set of tests and added a single-JVM configuration to the mix. The kernels will have debugging, lockstat enabled and will be running two passes with the second pass running profiling so the results will not be directly comparable. However, I'll keep a close eye on the Single vs Multi JVM results. Thanks. -- Mel Gorman SUSE Labs -- 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/
