1 files changed, 85 insertions, 0 deletions
diff --git a/src/test/bench_log.cc b/src/test/bench_log.cc
new file mode 100644
index 000000000..205dfe97b
--- /dev/null
+++ b/src/test/bench_log.cc
@@ -0,0 +1,85 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "include/types.h"
+#include "common/Thread.h"
+#include "common/debug.h"
+#include "common/Clock.h"
+#include "common/config.h"
+#include "common/ceph_argparse.h"
+#include "global/global_init.h"
+
+#define dout_context g_ceph_context
+
+struct T : public Thread {
+  int num;
+  set<int> myset;
+  map<int,string> mymap;
+  explicit T(int n) : num(n) {
+    myset.insert(123);
+    myset.insert(456);
+    mymap[1] = "foo";
+    mymap[10] = "bar";
+  }
+
+  void *entry() override {
+    while (num-- > 0)
+      generic_dout(0) << "this is a typical log line.  set "
+		      << myset << " and map " << mymap << dendl;
+    return 0;
+  }
+};
+
+void usage(const char *name) {
+  cout << name << " <threads> <lines>\n"
+       << "\t threads: the number of threads for this test.\n"
+       << "\t lines: the number of log entries per thread.\n";
+}
+
+int main(int argc, const char **argv)
+{
+  if (argc < 3) {
+    usage(argv[0]);
+    return EXIT_FAILURE;
+  }
+
+  int threads = atoi(argv[1]);
+  int num = atoi(argv[2]);
+
+  cout << threads << " threads, " << num << " lines per thread" << std::endl;
+
+  vector<const char*> args;
+  argv_to_vec(argc, argv, args);
+
+  auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_OSD,
+			 CODE_ENVIRONMENT_UTILITY,
+			 CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+
+  utime_t start = ceph_clock_now();
+
+  list<T*> ls;
+  for (int i=0; i<threads; i++) {
+    T *t = new T(num);
+    t->create("t");
+    ls.push_back(t);
+  }
+
+  for (int i=0; i<threads; i++) {
+    T *t = ls.front();
+    ls.pop_front();
+    t->join();
+    delete t;
+  }
+
+  utime_t t = ceph_clock_now();
+  t -= start;
+  cout << " flushing.. " << t << " so far ..." << std::endl;
+
+  g_ceph_context->_log->flush();
+
+  utime_t end = ceph_clock_now();
+  utime_t dur = end - start;
+
+  cout << dur << std::endl;
+  return 0;
+}