The benchmark examples ran very slowly because they were passing

16*1024 to an argument that treated those values as KiB, it took the
RNG ~3 seconds to create 16 MiB of data to randomize the input. Change
to 16. Also cap the value that can be passed to --buf-size to 1024,
for a 1 MiB buffer.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/examples/bench.cpp b/doc/examples/bench.cpp
index 20e6ec40b..6cfd9205f 100644
--- a/doc/examples/bench.cpp
+++ b/doc/examples/bench.cpp
@@ -70,11 +70,11 @@ const std::string algos[] = {
 void benchmark_algo(const std::string& algo,
                     RandomNumberGenerator& rng)
    {
-   u32bit milliseconds = 3000;
+   u32bit milliseconds = 1000;
    Algorithm_Factory& af = global_state().algorithm_factory();
 
    std::map<std::string, double> speeds =
-      algorithm_benchmark(algo, af, rng, milliseconds, 16*1024);
+      algorithm_benchmark(algo, af, rng, milliseconds, 16);
 
    std::cout << algo << ":";