On Fri, 30 May 2008, Rusty Russell wrote: > On Friday 30 May 2008 13:56:25 Christoph Lameter wrote: > > Use cpu_alloc instead of allocpercpu. > > These patches seem like useless churn. > > Plus, the new code is uglier than the old code :( It drastically reduces the memory size f.e. 4 byte allocations require SLAB f.e. to allocate a 32 byte chunk. This reduces memory requirements by 32/4 = 8 times. Plus the per cpu counters allocated in order are likely placed in the same cacheline (whereas the slab allocators avoid placing multiple objects in the same cacheline). Reduces cache footprint. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
