Some outstanding tests.

Author: mjp41

src/test/perf/combininglock/combininglock.cc

@@ -0,0 +1,37 @@
+#include <snmalloc/snmalloc.h>
+#include <thread>
+#include <vector>
+
+snmalloc::CombiningLock cl;
+
+std::atomic<bool> run{true};
+
+void loop()
+{
+  size_t j = 0;
+  size_t i = 0;
+  while (run)
+  {
+    i++;
+    snmalloc::with(cl, [&]() { j++; });
+    if (i != j)
+      snmalloc::error("i != j");
+  }
+}
+
+int main()
+{
+  std::vector<std::thread> threads;
+  for (size_t i = 0; i < 8; i++)
+  {
+    threads.emplace_back(std::thread(loop));
+  }
+
+  std::this_thread::sleep_for(std::chrono::seconds(100));
+  run = false;
+
+  for (auto& t : threads)
+  {
+    t.join();
+  }
+}

src/test/perf/realloc/realloc.cc

@@ -0,0 +1,46 @@
+#include "test/opt.h"
+#include "test/setup.h"
+#include "test/usage.h"
+#include "test/xoroshiro.h"
+
+#include <algorithm>
+#include <iostream>
+#include <snmalloc/snmalloc.h>
+#include <thread>
+#include <vector>
+
+using namespace snmalloc;
+
+NOINLINE
+void* myrealloc(void* p, size_t size)
+{
+  return snmalloc::libc::realloc(p, size);
+}
+
+void grow()
+{
+  void* base = nullptr;
+  for (size_t i = 1; i < 1000; i++)
+  {
+    base = myrealloc(base, i * 8);
+  }
+  snmalloc::libc::free(base);
+}
+
+int main()
+{
+  auto start = Aal::tick();
+
+  for (size_t i = 0; i < 10000; i++)
+  {
+    grow();
+    if (i % 10 == 0)
+    {
+      std::cout << "." << std::flush;
+    }
+  }
+
+  auto end = Aal::tick();
+
+  std::cout << "Taken: " << end - start << std::endl;
+}