Add IOBuf::cloneCoalesced()

[folly.git] / folly / io / test / IOBufBenchmark.cpp

diff --git a/folly/io/test/IOBufBenchmark.cpp b/folly/io/test/IOBufBenchmark.cpp
index 2298ddbbba32df95978e6e197a85b6b71b26b93f..1fa52b1871cf78925b90a9c2ab4929092e821031 100644 (file)
--- a/folly/io/test/IOBufBenchmark.cpp
+++ b/folly/io/test/IOBufBenchmark.cpp
@@ -70,6 +70,23 @@ BENCHMARK(copyBenchmark, iters) {
   }
 }
 
+BENCHMARK(cloneCoalescedBaseline, iters) {
+  std::unique_ptr<IOBuf> buf = IOBuf::createChain(100, 10);
+  while (iters--) {
+    auto clone = buf->cloneAsValue();
+    clone.coalesce();
+    folly::doNotOptimizeAway(clone.capacity());
+  }
+}
+
+BENCHMARK_RELATIVE(cloneCoalescedBenchmark, iters) {
+  std::unique_ptr<IOBuf> buf = IOBuf::createChain(100, 10);
+  while (iters--) {
+    auto copy = buf->cloneCoalescedAsValue();
+    folly::doNotOptimizeAway(copy.capacity());
+  }
+}
+
 /**
  * ============================================================================
  * folly/io/test/IOBufBenchmark.cpp                relative  time/iter  iters/s
@@ -80,8 +97,10 @@ BENCHMARK(copyBenchmark, iters) {
  * cloneIntoBenchmark                                          30.03ns   33.30M
  * moveBenchmark                                               15.35ns   65.14M
  * copyBenchmark                                               33.63ns   29.73M
+ * cloneCoalescedBaseline                                     344.33ns    2.90M
+ * cloneCoalescedBenchmark                          605.62%    56.86ns   17.59M
  * ============================================================================
-*/
+ */
 
 int main(int argc, char** argv) {
   gflags::ParseCommandLineFlags(&argc, &argv, true);