ceph/src/perfglue/heap_profiler.h

   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/Sage Weil <sage@newdream.net>
   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 #ifndef HEAP_PROFILER_H_
  14 #define HEAP_PROFILER_H_
  15
  16 #include <string>
  17 #include <vector>
  18 #include "common/config.h"
  19
  20 class LogClient;
  21
  22 /*
  23  * Ceph glue for the Google perftools heap profiler, included
  24  * as part of tcmalloc. This replaces ugly function pointers
  25  * and #ifdef hacks!
  26  */
  27 bool ceph_using_tcmalloc();
  28
  29 /*
  30  * Configure the heap profiler
  31  */
  32 void ceph_heap_profiler_init();
  33
  34 void ceph_heap_profiler_stats(char *buf, int length);
  35
  36 void ceph_heap_release_free_memory();
  37
  38 double ceph_heap_get_release_rate();
  39
  40 void ceph_heap_get_release_rate(double value);
  41
  42 bool ceph_heap_profiler_running();
  43
  44 void ceph_heap_profiler_start();
  45
  46 void ceph_heap_profiler_stop();
  47
  48 void ceph_heap_profiler_dump(const char *reason);
  49
  50 bool ceph_heap_get_numeric_property(const char *property, size_t *value);
  51
  52 bool ceph_heap_set_numeric_property(const char *property, size_t value);
  53
  54 void ceph_heap_profiler_handle_command(const std::vector<std::string> &cmd,
  55                                        ostream& out);
  56
  57 #endif /* HEAP_PROFILER_H_ */