Add IOBuf multi create/destroy benchmark

Summary: Add IOBuf multi create/destroy benchmark

Reviewed By: mokomull

Differential Revision: D27406019

fbshipit-source-id: 001cd92743892bb91111831044fc3a4d3b02aaf7

folly/io/test/IOBufBenchmark.cpp

@@ -105,19 +105,59 @@ BENCHMARK(takeOwnershipBenchmark, iters) {
   }
 }
 
+static void createAndDestroyMulti(size_t iters, size_t size) {
+  static constexpr auto kSize = 1024;
+  std::array<std::unique_ptr<IOBuf>, kSize> buffers;
+
+  while (iters--) {
+    for (auto i = 0; i < kSize; ++i) {
+      buffers[i] = IOBuf::create(size);
+    }
+  }
+}
+
+BENCHMARK_DRAW_LINE();
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 64, 64)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 256, 256)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 1024, 1024)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 4096, 4096)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 5000, 5000)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 5120, 5120)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 8192, 8192)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 10000, 10000)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 10240, 10240)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 16384, 16384)
+BENCHMARK_NAMED_PARAM(createAndDestroyMulti, 17000, 17000)
+BENCHMARK_DRAW_LINE();
+
 /**
+ * folly/io/test:iobuf_benchmark -- --bm_min_iters 100000
  *  ============================================================================
  *  folly/io/test/IOBufBenchmark.cpp                relative  time/iter  iters/s
  *  ============================================================================
- * cloneOneBenchmark                                           35.52ns   28.15M
- * cloneOneIntoBenchmark                                       21.60ns   46.29M
- * cloneBenchmark                                              34.91ns   28.65M
- * cloneIntoBenchmark                                          22.78ns   43.91M
- * moveBenchmark                                               10.20ns   98.06M
- * copyBenchmark                                               27.31ns   36.62M
- * cloneCoalescedBaseline                                     307.72ns    3.25M
- * cloneCoalescedBenchmark                          633.34%    48.59ns   20.58M
- * takeOwnershipBenchmark                                     32.32ns   30.94M
+ *  createAndDestroy                                            17.42ns   57.41M
+ *  cloneOneBenchmark                                           23.73ns   42.14M
+ *  cloneOneIntoBenchmark                                       19.08ns   52.40M
+ *  cloneBenchmark                                              24.92ns   40.13M
+ *  cloneIntoBenchmark                                          21.74ns   45.99M
+ *  moveBenchmark                                                8.61ns  116.17M
+ *  copyBenchmark                                               21.23ns   47.11M
+ *  cloneCoalescedBaseline                                     201.31ns    4.97M
+ *  cloneCoalescedBenchmark                          555.93%    36.21ns   27.62M
+ *  takeOwnershipBenchmark                                      36.01ns   27.77M
+ *  ----------------------------------------------------------------------------
+ *  createAndDestroyMulti(64)                                   32.74us   30.54K
+ *  createAndDestroyMulti(256)                                  34.08us   29.34K
+ *  createAndDestroyMulti(1024)                                 36.09us   27.71K
+ *  createAndDestroyMulti(4096)                                 70.16us   14.25K
+ *  createAndDestroyMulti(5000)                                 69.27us   14.44K
+ *  createAndDestroyMulti(5120)                                 79.56us   12.57K
+ *  createAndDestroyMulti(8192)                                 83.61us   11.96K
+ *  createAndDestroyMulti(10000)                                84.54us   11.83K
+ *  createAndDestroyMulti(10240)                                83.83us   11.93K
+ *  createAndDestroyMulti(16384)                                93.03us   10.75K
+ *  createAndDestroyMulti(17000)                                93.85us   10.66K
+ *  ----------------------------------------------------------------------------
  *  ============================================================================
  */