I went ahead and implemented both of these pieces. See https://github.com/ceph/ceph/pull/5534 My benchmark numbers are highly suspect, but the approximate takeaway is that it's 2x faster for the simple microbenchmarks and does 1/3rd the allocations. But there is some weird interaction with the allocator going on for 16k allocations that I saw, so it needs some more careful benchmarking. The other interesting thing is that either of these pieces in isolation seems to have a pretty decent benefit, but when combined the benefits are fully additive. It seems to be reasonably stable, though! sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
