On Wed, Nov 05, 2008 at 04:56:36PM -0500, Trond Myklebust wrote: > On Wed, 2008-11-05 at 16:51 -0500, Chuck Lever wrote: > > Here's a set of patches to change the NLM host cache to use a slab. > > OK, I'll bite. Why would we care about slabifying the NLM host cache? There's some argument on the 5th patch: "Now that we have a couple of large text buffers in the nlm_host struct, the nlm_host cache should use a slab to reduce memory utilization and fragmentation on systems that manage a large number of NLM peers. "We keep these hardware cache-aligned to speed up the linked list search in nlm_lookup_host(). "The overhead of creating a fresh nlm_host entry is also reduced using SLAB's init_once callback instead of using kzalloc()." Chuck, is there any hope of quantifying those improvements? --b. -- 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
