On Fri, 23 Jan 2015 18:28:00 -0600 (CST) Christoph Lameter <cl@xxxxxxxxx> wrote: > On Fri, 23 Jan 2015, Andrew Morton wrote: > > > On Fri, 23 Jan 2015 15:37:27 -0600 Christoph Lameter <cl@xxxxxxxxx> wrote: > > > > > Attached a series of 3 patches to implement functionality to allocate > > > arrays of pointers to slab objects. This can be used by the slab > > > allocators to offer more optimized allocation and free paths. > > > > What's the driver for this? The networking people, I think? If so, > > some discussion about that would be useful: who is involved, why they > > have this need, who are the people we need to bug to get it tested, > > whether this implementation is found adequate, etc. Yes, networking people like me ;-) I promised Christoph that I will performance benchmark this. I'll start by writing/performing some micro benchmarks, but it first starts to get really interesting once we plug it into e.g. the networking stack, as effects as instruction-cache misses due to code size starts to play a role. > > Jesper and I gave a talk at LCA about this. LWN has an article on it. LWN: Improving Linux networking performance - http://lwn.net/Articles/629155/ - YouTube: https://www.youtube.com/watch?v=3XG9-X777Jo LWN: Toward a more efficient slab allocator - http://lwn.net/Articles/629152/ - YouTube: https://www.youtube.com/watch?v=s0lZzP1jOzI -- Best regards, Jesper Dangaard Brouer MSc.CS, Sr. Network Kernel Developer at Red Hat Author of http://www.iptv-analyzer.org LinkedIn: http://www.linkedin.com/in/brouer -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>