1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
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 "policy/cpu_policy.h"
16 #include "work_sched_hilog.h"
17 #include "cpu_collector.h"
18
19 using namespace std;
20
21 namespace OHOS {
22 namespace WorkScheduler {
23 const int32_t CPU_HIGH = 60;
24 const int32_t CPU_NORMAL = 50;
25 const int32_t CPU_LOW = 30;
26 const int32_t INIT_CPU = 0;
27 const int32_t COUNT_CPU_MAX = 0;
28 const int32_t COUNT_CPU_HIGH = 1;
29 const int32_t COUNT_CPU_NORMAL = 2;
30 const int32_t COUNT_CPU_LOW = 3;
31 const int32_t CPU_UPPER_LIMIT = 100;
32 const int32_t UNIT = 100;
33
CpuPolicy(shared_ptr<WorkPolicyManager> workPolicyManager)34 CpuPolicy::CpuPolicy(shared_ptr<WorkPolicyManager> workPolicyManager)
35 {
36 workPolicyManager_ = workPolicyManager;
37 }
38
~CpuPolicy()39 CpuPolicy::~CpuPolicy()
40 {
41 }
42
GetCpuUsage()43 int32_t CpuPolicy::GetCpuUsage()
44 {
45 if (workPolicyManager_ != nullptr) {
46 int32_t dumpSetCpu = workPolicyManager_->GetDumpSetCpuUsage();
47 if (0 < dumpSetCpu && dumpSetCpu <= CPU_UPPER_LIMIT) {
48 WS_HILOGI("dump set cpu: %{public}d", dumpSetCpu);
49 return dumpSetCpu;
50 }
51 }
52 int32_t cpuUsage = INIT_CPU;
53 auto collector = OHOS::HiviewDFX::UCollectClient::CpuCollector::Create();
54 auto collectResult = collector->GetSysCpuUsage();
55 int32_t retCode = collectResult.retCode;
56 WS_HILOGD("retCode of collectResult: %{public}d", retCode);
57 if (retCode == OHOS::HiviewDFX::UCollect::UcError::SUCCESS) {
58 cpuUsage = static_cast<int>(collectResult.data * UNIT);
59 }
60 return cpuUsage;
61 }
62
GetPolicyMaxRunning()63 int32_t CpuPolicy::GetPolicyMaxRunning()
64 {
65 int32_t cpuUsage = GetCpuUsage();
66 int32_t policyRes;
67 if (cpuUsage < CPU_LOW) {
68 policyRes = COUNT_CPU_LOW;
69 } else if (cpuUsage >= CPU_LOW && cpuUsage < CPU_NORMAL) {
70 policyRes = COUNT_CPU_NORMAL;
71 } else if (cpuUsage >= CPU_NORMAL && cpuUsage < CPU_HIGH) {
72 policyRes = COUNT_CPU_HIGH;
73 } else {
74 policyRes = COUNT_CPU_MAX;
75 }
76 WS_HILOGD("cpu_usage: %{public}d, policyRes: %{public}d", cpuUsage, policyRes);
77 return policyRes;
78 }
79
GetPolicyName()80 std::string CpuPolicy::GetPolicyName()
81 {
82 return "CPU_POLICY";
83 }
84 } // namespace WorkScheduler
85 } // namespace OHOS