diff options
Diffstat (limited to 'src/benchmark/benchmark.cpp')
| -rw-r--r-- | src/benchmark/benchmark.cpp | 76 |
1 files changed, 46 insertions, 30 deletions
diff --git a/src/benchmark/benchmark.cpp b/src/benchmark/benchmark.cpp index 3bbc1f883..ff7519c09 100644 --- a/src/benchmark/benchmark.cpp +++ b/src/benchmark/benchmark.cpp @@ -1,6 +1,6 @@ /** * Runtime benchmarking -* (C) 2008 Jack Lloyd +* (C) 2008-2009 Jack Lloyd * * Distributed under the terms of the Botan license */ @@ -13,31 +13,40 @@ #include <botan/mac.h> #include <botan/util.h> #include <memory> +#include <vector> +#include <chrono> namespace Botan { namespace { +typedef std::chrono::high_resolution_clock benchmark_clock; + /** * Benchmark BufferedComputation (hash or MAC) */ std::pair<u64bit, u64bit> bench_buf_comp(BufferedComputation* buf_comp, - Timer& timer, u64bit nanoseconds_max, const byte buf[], u32bit buf_len) { - const u64bit start = timer.clock(); - u64bit nanoseconds_used = 0; u64bit reps = 0; - while(nanoseconds_used < nanoseconds_max) + std::chrono::nanoseconds max_time(nanoseconds_max); + std::chrono::nanoseconds time_used(0); + + auto start = benchmark_clock::now(); + + while(time_used < max_time) { buf_comp->update(buf, buf_len); ++reps; - nanoseconds_used = timer.clock() - start; + time_used = benchmark_clock::now() - start; } - return std::make_pair(reps * buf_len, nanoseconds_used); + u64bit ns_taken = + std::chrono::duration_cast<std::chrono::nanoseconds>(time_used).count(); + + return std::make_pair(reps * buf_len, ns_taken); } /** @@ -45,26 +54,30 @@ std::pair<u64bit, u64bit> bench_buf_comp(BufferedComputation* buf_comp, */ std::pair<u64bit, u64bit> bench_block_cipher(BlockCipher* block_cipher, - Timer& timer, u64bit nanoseconds_max, byte buf[], u32bit buf_len) { - const u64bit start = timer.clock(); - u64bit nanoseconds_used = 0; + const u32bit in_blocks = buf_len / block_cipher->BLOCK_SIZE; + u64bit reps = 0; - const u32bit in_blocks = buf_len / block_cipher->BLOCK_SIZE; + std::chrono::nanoseconds max_time(nanoseconds_max); + std::chrono::nanoseconds time_used(0); - while(nanoseconds_used < nanoseconds_max) + auto start = benchmark_clock::now(); + + while(time_used < max_time) { block_cipher->encrypt_n(buf, buf, in_blocks); - ++reps; - nanoseconds_used = timer.clock() - start; + time_used = benchmark_clock::now() - start; } + u64bit ns_taken = + std::chrono::duration_cast<std::chrono::nanoseconds>(time_used).count(); + return std::make_pair(reps * in_blocks * block_cipher->BLOCK_SIZE, - nanoseconds_used); + ns_taken); } /** @@ -72,33 +85,38 @@ bench_block_cipher(BlockCipher* block_cipher, */ std::pair<u64bit, u64bit> bench_stream_cipher(StreamCipher* stream_cipher, - Timer& timer, u64bit nanoseconds_max, byte buf[], u32bit buf_len) { - const u64bit start = timer.clock(); - u64bit nanoseconds_used = 0; u64bit reps = 0; - while(nanoseconds_used < nanoseconds_max) + std::chrono::nanoseconds max_time(nanoseconds_max); + std::chrono::nanoseconds time_used(0); + + auto start = benchmark_clock::now(); + + while(time_used < max_time) { stream_cipher->encrypt(buf, buf_len); ++reps; - nanoseconds_used = timer.clock() - start; + time_used = benchmark_clock::now() - start; } - return std::make_pair(reps * buf_len, nanoseconds_used); + u64bit ns_taken = + std::chrono::duration_cast<std::chrono::nanoseconds>(time_used).count(); + + return std::make_pair(reps * buf_len, ns_taken); } /** * Benchmark hash */ std::pair<u64bit, u64bit> -bench_hash(HashFunction* hash, Timer& timer, +bench_hash(HashFunction* hash, u64bit nanoseconds_max, const byte buf[], u32bit buf_len) { - return bench_buf_comp(hash, timer, nanoseconds_max, buf, buf_len); + return bench_buf_comp(hash, nanoseconds_max, buf, buf_len); } /** @@ -106,12 +124,11 @@ bench_hash(HashFunction* hash, Timer& timer, */ std::pair<u64bit, u64bit> bench_mac(MessageAuthenticationCode* mac, - Timer& timer, u64bit nanoseconds_max, const byte buf[], u32bit buf_len) { mac->set_key(buf, mac->MAXIMUM_KEYLENGTH); - return bench_buf_comp(mac, timer, nanoseconds_max, buf, buf_len); + return bench_buf_comp(mac, nanoseconds_max, buf, buf_len); } } @@ -119,7 +136,6 @@ bench_mac(MessageAuthenticationCode* mac, std::map<std::string, double> algorithm_benchmark(const std::string& name, u32bit milliseconds, - Timer& timer, RandomNumberGenerator& rng, Algorithm_Factory& af) { @@ -145,7 +161,7 @@ algorithm_benchmark(const std::string& name, af.prototype_block_cipher(name, provider)) { std::auto_ptr<BlockCipher> block_cipher(proto->clone()); - results = bench_block_cipher(block_cipher.get(), timer, + results = bench_block_cipher(block_cipher.get(), ns_per_provider, &buf[0], buf.size()); } @@ -153,7 +169,7 @@ algorithm_benchmark(const std::string& name, af.prototype_stream_cipher(name, provider)) { std::auto_ptr<StreamCipher> stream_cipher(proto->clone()); - results = bench_stream_cipher(stream_cipher.get(), timer, + results = bench_stream_cipher(stream_cipher.get(), ns_per_provider, &buf[0], buf.size()); } @@ -161,14 +177,14 @@ algorithm_benchmark(const std::string& name, af.prototype_hash_function(name, provider)) { std::auto_ptr<HashFunction> hash(proto->clone()); - results = bench_hash(hash.get(), timer, ns_per_provider, + results = bench_hash(hash.get(), ns_per_provider, &buf[0], buf.size()); } else if(const MessageAuthenticationCode* proto = af.prototype_mac(name, provider)) { std::auto_ptr<MessageAuthenticationCode> mac(proto->clone()); - results = bench_mac(mac.get(), timer, ns_per_provider, + results = bench_mac(mac.get(), ns_per_provider, &buf[0], buf.size()); } |