On Sat, Jan 21, 2017 at 05:26:13PM +0100, Daniel Mack wrote:
> From: David Herrmann <dh.herrm...@gmail.com>
>
> Extend the map_perf_test_{user,kern}.c infrastructure to stress test
> lpm-trie lookups. We hook into the kprobe on sys_gettid() and measure
> the latency depending on trie size and lookup count.
>
> On my Intel Haswell i7-6400U, a single gettid() syscall with an empty
> bpf program takes roughly 6.5us on my system. Lookups in empty tries
> take ~1.8us on first try, ~0.9us on retries. Lookups in tries with 8192
> entries take ~7.1us (on the first _and_ any subsequent try).
>
> Signed-off-by: David Herrmann <dh.herrm...@gmail.com>
> Reviewed-by: Daniel Mack <dan...@zonque.org>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Thank you for all the hard work you've put into these patches.
All looks great to me.
