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.

4 files changed, 5 insertions, 5 deletions

diff --git a/checks/check.cpp b/checks/check.cpp
index 4fa1160ae..e47cc543b 100644
--- a/checks/check.cpp
+++ b/checks/check.cpp
@@ -178,7 +178,7 @@ int main(int argc, char* argv[])
          if(opts.is_set("buf-size"))
             {
             buf_size = std::atoi(opts.value("buf-size").c_str());
-            if(buf_size == 0 || buf_size > 64*1024)
+            if(buf_size == 0 || buf_size > 1024)
                {
                std::cout << "Invalid argument to --buf-size\n";
                return 2;
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 << ":";
 
diff --git a/doc/examples/benchmark.cpp b/doc/examples/benchmark.cpp
index 7ad1775e2..b5adb3d4f 100644
--- a/doc/examples/benchmark.cpp
+++ b/doc/examples/benchmark.cpp
@@ -33,7 +33,7 @@ int main(int argc, char* argv[])
       std::string algo = argv[i];
 
       std::map<std::string, double> results =
-         algorithm_benchmark(algo, af, rng, ms, 16*1024);
+         algorithm_benchmark(algo, af, rng, ms, 16);
 
       std::cout << algo << ":\n";
       for(std::map<std::string, double>::iterator r = results.begin();
diff --git a/doc/examples/hash_quickly.cpp b/doc/examples/hash_quickly.cpp
index 005a6d719..a18ab4fa6 100644
--- a/doc/examples/hash_quickly.cpp
+++ b/doc/examples/hash_quickly.cpp
@@ -34,7 +34,7 @@ void set_fastest_implementation(const std::string& algo,
    Botan::Algorithm_Factory& af = Botan::global_state().algorithm_factory();
 
    std::map<std::string, double> results =
-      Botan::algorithm_benchmark(algo, af, rng, ms, 16*1024);
+      Botan::algorithm_benchmark(algo, af, rng, ms, 16);
 
    std::string fastest_provider = "";
    double best_res = 0;