ceph/src/rocksdb/include/rocksdb/perf_level.h

   1 // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5
   6 #pragma once
   7
   8 #include <stdint.h>
   9 #include <string>
  10
  11 namespace rocksdb {
  12
  13 // How much perf stats to collect. Affects perf_context and iostats_context.
  14 enum PerfLevel : unsigned char {
  15   kUninitialized = 0,             // unknown setting
  16   kDisable = 1,                   // disable perf stats
  17   kEnableCount = 2,               // enable only count stats
  18   kEnableTimeExceptForMutex = 3,  // Other than count stats, also enable time
  19                                   // stats except for mutexes
  20   // Other than time, also measure CPU time counters. Still don't measure
  21   // time (neither wall time nor CPU time) for mutexes.
  22   kEnableTimeAndCPUTimeExceptForMutex = 4,
  23   kEnableTime = 5,  // enable count and time stats
  24   kOutOfBounds = 6  // N.B. Must always be the last value!
  25 };
  26
  27 // set the perf stats level for current thread
  28 void SetPerfLevel(PerfLevel level);
  29
  30 // get current perf stats level for current thread
  31 PerfLevel GetPerfLevel();
  32
  33 }  // namespace rocksdb