commit e9c1c3ff7f3123495493bad7aa77ef6194005c75 Author: Nick Mathewson nickm@torproject.org Date: Tue May 6 12:55:39 2014 -0400

Add a siphash benchmark. --- src/test/bench.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)

diff --git a/src/test/bench.c b/src/test/bench.c index c9cc101..a3fa7fe 100644 --- a/src/test/bench.c +++ b/src/test/bench.c @@ -338,6 +338,30 @@ bench_dmap(void) }

static void +bench_siphash(void) +{ + char buf[128]; + int lens[] = { 7, 8, 15, 16, 20, 32, 111, 128, -1 }; + int i, j; + uint64_t total; + uint64_t start, end; + const int N = 300000; + crypto_rand(buf, sizeof(buf)); + + for (i = 0; lens[i] > 0; ++i) { + total = 0; + reset_perftime(); + start = perftime(); + for (j = 0; j < N; ++j) { + total += siphash24g(buf, lens[i]); + } + end = perftime(); + printf("siphash24g(%d): %.2f ns per call\n", + lens[i], NANOCOUNT(start,end,N)); + } +} + +static void bench_cell_ops(void) { const int iters = 1<<16; @@ -487,6 +511,7 @@ typedef struct benchmark_t {

static struct benchmark_t benchmarks[] = { ENT(dmap), + ENT(siphash), ENT(aes), ENT(onion_TAP), #ifdef CURVE25519_ENABLED