utils/benchmark/src/counter.cc

   1 // Copyright 2015 Google Inc. All rights reserved.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 #include "counter.h"
  16
  17 namespace benchmark {
  18 namespace internal {
  19
  20 double Finish(Counter const& c, double cpu_time, double num_threads) {
  21   double v = c.value;
  22   if (c.flags & Counter::kIsRate) {
  23     v /= cpu_time;
  24   }
  25   if (c.flags & Counter::kAvgThreads) {
  26     v /= num_threads;
  27   }
  28   return v;
  29 }
  30
  31 void Finish(UserCounters *l, double cpu_time, double num_threads) {
  32   for (auto &c : *l) {
  33     c.second.value = Finish(c.second, cpu_time, num_threads);
  34   }
  35 }
  36
  37 void Increment(UserCounters *l, UserCounters const& r) {
  38   // add counters present in both or just in *l
  39   for (auto &c : *l) {
  40     auto it = r.find(c.first);
  41     if (it != r.end()) {
  42       c.second.value = c.second + it->second;
  43     }
  44   }
  45   // add counters present in r, but not in *l
  46   for (auto const &tc : r) {
  47     auto it = l->find(tc.first);
  48     if (it == l->end()) {
  49       (*l)[tc.first] = tc.second;
  50     }
  51   }
  52 }
  53
  54 bool SameNames(UserCounters const& l, UserCounters const& r) {
  55   if (&l == &r) return true;
  56   if (l.size() != r.size()) {
  57     return false;
  58   }
  59   for (auto const& c : l) {
  60     if (r.find(c.first) == r.end()) {
  61       return false;
  62     }
  63   }
  64   return true;
  65 }
  66
  67 } // end namespace internal
  68 } // end namespace benchmark