From d8c8fd0ce36b0349a94384092ed407d99b0590bd Mon Sep 17 00:00:00 2001
From: hashlag <hashlag@hashlag.net>
Date: Sun, 25 Jan 2026 19:08:57 +0300
Subject: [PATCH] Add Md5Hasher benchmarks

---
 ChaosBenches/BenchmarkMain.cpp         |  3 ++
 ChaosBenches/CMakeLists.txt            |  4 +-
 ChaosBenches/Hash/Md4HasherBenches.cpp |  2 -
 ChaosBenches/Hash/Md5HasherBenches.cpp | 65 ++++++++++++++++++++++++++
 4 files changed, 71 insertions(+), 3 deletions(-)
 create mode 100644 ChaosBenches/BenchmarkMain.cpp
 create mode 100644 ChaosBenches/Hash/Md5HasherBenches.cpp

diff --git a/ChaosBenches/BenchmarkMain.cpp b/ChaosBenches/BenchmarkMain.cpp
new file mode 100644
index 0000000..71fefa0
--- /dev/null
+++ b/ChaosBenches/BenchmarkMain.cpp
@@ -0,0 +1,3 @@
+#include <benchmark/benchmark.h>
+
+BENCHMARK_MAIN();
diff --git a/ChaosBenches/CMakeLists.txt b/ChaosBenches/CMakeLists.txt
index e058d00..dcccb82 100644
--- a/ChaosBenches/CMakeLists.txt
+++ b/ChaosBenches/CMakeLists.txt
@@ -12,7 +12,9 @@ set(BENCHMARK_ENABLE_WERROR OFF CACHE BOOL "" FORCE)
 set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
 FetchContent_MakeAvailable(googlebenchmark)
 
-set(ChaosBenches_SOURCE Hash/Md4HasherBenches.cpp)
+set(ChaosBenches_SOURCE BenchmarkMain.cpp
+                        Hash/Md4HasherBenches.cpp
+                        Hash/Md5HasherBenches.cpp)
 
 add_executable(ChaosBenches ${ChaosBenches_SOURCE})
 target_link_libraries(ChaosBenches benchmark::benchmark)
diff --git a/ChaosBenches/Hash/Md4HasherBenches.cpp b/ChaosBenches/Hash/Md4HasherBenches.cpp
index bc4cfe2..1892003 100644
--- a/ChaosBenches/Hash/Md4HasherBenches.cpp
+++ b/ChaosBenches/Hash/Md4HasherBenches.cpp
@@ -63,5 +63,3 @@ static void Md4HasherPartialUpdate100Bench(benchmark::State & state)
 }
 
 BENCHMARK(Md4HasherPartialUpdate100Bench);
-
-BENCHMARK_MAIN();
diff --git a/ChaosBenches/Hash/Md5HasherBenches.cpp b/ChaosBenches/Hash/Md5HasherBenches.cpp
new file mode 100644
index 0000000..0de75b6
--- /dev/null
+++ b/ChaosBenches/Hash/Md5HasherBenches.cpp
@@ -0,0 +1,65 @@
+#include <benchmark/benchmark.h>
+#include <cstring>
+
+#include <Hash/Md5.hpp>
+
+using namespace Chaos::Hash::Md5;
+
+static const char * DATA_BEGIN
+    = "All states, all powers, that have held and hold rule over men have been and are either republics or principalities.\n"
+      "Principalities are either hereditary, in which the family has been long established; or they are new.\n"
+      "The new are either entirely new, as was Milan to Francesco Sforza, or they are, as it were, members annexed to the hereditary state of the "
+      "prince who has acquired them, as was the kingdom of Naples to that of the King of Spain.\n"
+      "Such dominions thus acquired are either accustomed to live under a prince, or to live in freedom; and are acquired either by the arms of the "
+      "prince himself, or of others, or else by fortune or by ability.";
+static const size_t DATA_LEN = strlen(DATA_BEGIN);
+static const char * DATA_END = DATA_BEGIN + DATA_LEN;
+
+static void Md5HasherCreateComputeDeleteBench(benchmark::State & state)
+{
+    for (auto _ : state)
+    {
+        Md5Hasher hasher;
+        hasher.Update(DATA_BEGIN, DATA_END);
+        Md5Hash result = hasher.Finish();
+
+        benchmark::DoNotOptimize(result);
+    }
+}
+
+BENCHMARK(Md5HasherCreateComputeDeleteBench);
+
+static void Md5HasherReuseBench(benchmark::State & state)
+{
+    Md5Hasher hasher;
+
+    for (auto _ : state)
+    {
+        hasher.Reset();
+        hasher.Update(DATA_BEGIN, DATA_END);
+        Md5Hash result = hasher.Finish();
+
+        benchmark::DoNotOptimize(result);
+    }
+}
+
+BENCHMARK(Md5HasherReuseBench);
+
+static void Md5HasherPartialUpdate100Bench(benchmark::State & state)
+{
+    for (auto _ : state)
+    {
+        Md5Hasher hasher;
+
+        for (int i = 0; i < 100; ++i)
+        {
+            hasher.Update(DATA_BEGIN, DATA_END);
+        }
+
+        Md5Hash result = hasher.Finish();
+
+        benchmark::DoNotOptimize(result);
+    }
+}
+
+BENCHMARK(Md5HasherPartialUpdate100Bench);