The sunrpc code has had some support for spreading pooled services over different NUMA nodes and CPUs for some time. So far though, this support has been for CPU masks only. Memory allocated for these services is generally done by whatever CPU happens to be running the init script that starts the services and so most of it ends up on the same NUMA node. This means that nfsd's end up wasting a lot of time updating remote memory on a different memory node. This patchset attempts to remedy that by having pooled services make per-thread allocations that are on their local memory node. I have no hard performance numbers for this particular patchset, but Greg Banks sent me a different patch that has a similar effect and claims that there is a significant performance gain. Comments and suggestions appreciated... Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
