xref: /aosp_15_r20/external/libchrome/base/task_scheduler/initialization_util.cc (revision 635a864187cb8b6c713ff48b7e790a6b21769273) 
1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "base/task_scheduler/initialization_util.h"
6 
7 #include <algorithm>
8 
9 #include "base/sys_info.h"
10 
11 namespace base {
12 
RecommendedMaxNumberOfThreadsInPool(int min,int max,double cores_multiplier,int offset)13 int RecommendedMaxNumberOfThreadsInPool(int min,
14                                         int max,
15                                         double cores_multiplier,
16                                         int offset) {
17   const int num_of_cores = SysInfo::NumberOfProcessors();
18   const int threads = std::ceil<int>(num_of_cores * cores_multiplier) + offset;
19   return std::min(max, std::max(min, threads));
20 }
21 
22 }  // namespace base
23