ceph/src/perfglue/cpu_profiler.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2011 New Dream Network
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #include "acconfig.h"
  16
  17 #include <gperftools/profiler.h>
  18
  19 #include "common/LogClient.h"
  20 #include "perfglue/cpu_profiler.h"
  21
  22 void cpu_profiler_handle_command(const std::vector<std::string> &cmd,
  23                                  ostream& out)
  24 {
  25   if (cmd[1] == "status") {
  26     ProfilerState st;
  27     ProfilerGetCurrentState(&st);
  28     out << "cpu_profiler " << (st.enabled ? "enabled":"not enabled")
  29         << " start_time " << st.start_time
  30         << " profile_name " << st.profile_name
  31         << " samples " << st.samples_gathered;
  32   }
  33   else if (cmd[1] == "flush") {
  34     ProfilerFlush();
  35     out << "cpu_profiler: flushed";
  36   }
  37   else {
  38     out << "cpu_profiler: unrecognized command " << cmd
  39         << "; expected one of status, flush.";
  40   }
  41 }