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605 lines
19 KiB
C++
605 lines
19 KiB
C++
#include "cpu.h"
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#include <memory>
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <sstream>
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#include <dirent.h>
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#include <string.h>
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#include <algorithm>
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#include <regex>
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#include <inttypes.h>
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#include "string_utils.h"
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#ifndef PROCDIR
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#define PROCDIR "/proc"
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#endif
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#ifndef PROCSTATFILE
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#define PROCSTATFILE PROCDIR "/stat"
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#endif
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#ifndef PROCMEMINFOFILE
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#define PROCMEMINFOFILE PROCDIR "/meminfo"
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#endif
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#ifndef PROCCPUINFOFILE
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#define PROCCPUINFOFILE PROCDIR "/cpuinfo"
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#endif
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#include "file_utils.h"
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void calculateCPUData(CPUData& cpuData,
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unsigned long long int usertime,
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unsigned long long int nicetime,
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unsigned long long int systemtime,
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unsigned long long int idletime,
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unsigned long long int ioWait,
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unsigned long long int irq,
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unsigned long long int softIrq,
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unsigned long long int steal,
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unsigned long long int guest,
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unsigned long long int guestnice)
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{
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// Guest time is already accounted in usertime
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usertime = usertime - guest;
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nicetime = nicetime - guestnice;
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// Fields existing on kernels >= 2.6
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// (and RHEL's patched kernel 2.4...)
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unsigned long long int idlealltime = idletime + ioWait;
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unsigned long long int systemalltime = systemtime + irq + softIrq;
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unsigned long long int virtalltime = guest + guestnice;
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unsigned long long int totaltime = usertime + nicetime + systemalltime + idlealltime + steal + virtalltime;
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// Since we do a subtraction (usertime - guest) and cputime64_to_clock_t()
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// used in /proc/stat rounds down numbers, it can lead to a case where the
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// integer overflow.
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#define WRAP_SUBTRACT(a,b) (a > b) ? a - b : 0
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cpuData.userPeriod = WRAP_SUBTRACT(usertime, cpuData.userTime);
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cpuData.nicePeriod = WRAP_SUBTRACT(nicetime, cpuData.niceTime);
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cpuData.systemPeriod = WRAP_SUBTRACT(systemtime, cpuData.systemTime);
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cpuData.systemAllPeriod = WRAP_SUBTRACT(systemalltime, cpuData.systemAllTime);
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cpuData.idleAllPeriod = WRAP_SUBTRACT(idlealltime, cpuData.idleAllTime);
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cpuData.idlePeriod = WRAP_SUBTRACT(idletime, cpuData.idleTime);
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cpuData.ioWaitPeriod = WRAP_SUBTRACT(ioWait, cpuData.ioWaitTime);
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cpuData.irqPeriod = WRAP_SUBTRACT(irq, cpuData.irqTime);
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cpuData.softIrqPeriod = WRAP_SUBTRACT(softIrq, cpuData.softIrqTime);
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cpuData.stealPeriod = WRAP_SUBTRACT(steal, cpuData.stealTime);
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cpuData.guestPeriod = WRAP_SUBTRACT(virtalltime, cpuData.guestTime);
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cpuData.totalPeriod = WRAP_SUBTRACT(totaltime, cpuData.totalTime);
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#undef WRAP_SUBTRACT
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cpuData.userTime = usertime;
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cpuData.niceTime = nicetime;
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cpuData.systemTime = systemtime;
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cpuData.systemAllTime = systemalltime;
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cpuData.idleAllTime = idlealltime;
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cpuData.idleTime = idletime;
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cpuData.ioWaitTime = ioWait;
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cpuData.irqTime = irq;
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cpuData.softIrqTime = softIrq;
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cpuData.stealTime = steal;
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cpuData.guestTime = virtalltime;
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cpuData.totalTime = totaltime;
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if (cpuData.totalPeriod == 0)
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return;
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float total = (float)cpuData.totalPeriod;
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float v[4];
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v[0] = cpuData.nicePeriod * 100.0f / total;
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v[1] = cpuData.userPeriod * 100.0f / total;
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/* if not detailed */
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v[2] = cpuData.systemAllPeriod * 100.0f / total;
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v[3] = (cpuData.stealPeriod + cpuData.guestPeriod) * 100.0f / total;
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//cpuData.percent = std::clamp(v[0]+v[1]+v[2]+v[3], 0.0f, 100.0f);
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cpuData.percent = std::min(std::max(v[0]+v[1]+v[2]+v[3], 0.0f), 100.0f);
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}
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CPUStats::CPUStats()
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{
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}
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CPUStats::~CPUStats()
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{
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if (m_cpuTempFile)
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fclose(m_cpuTempFile);
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}
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bool CPUStats::Init()
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{
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if (m_inited)
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return true;
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std::string line;
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std::ifstream file (PROCSTATFILE);
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bool first = true;
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m_cpuData.clear();
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if (!file.is_open()) {
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std::cerr << "Failed to opening " << PROCSTATFILE << std::endl;
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return false;
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}
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do {
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if (!std::getline(file, line)) {
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std::cerr << "Failed to read all of " << PROCSTATFILE << std::endl;
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return false;
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} else if (starts_with(line, "cpu")) {
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if (first) {
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first =false;
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continue;
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}
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CPUData cpu = {};
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cpu.totalTime = 1;
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cpu.totalPeriod = 1;
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m_cpuData.push_back(cpu);
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} else if (starts_with(line, "btime ")) {
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// C++ way, kind of noisy
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//std::istringstream token( line );
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//std::string s;
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//token >> s;
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//token >> m_boottime;
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// assume that if btime got read, that everything else is OK too
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sscanf(line.c_str(), "btime %lld\n", &m_boottime);
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break;
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}
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} while(true);
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m_inited = true;
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return UpdateCPUData();
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}
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//TODO take sampling interval into account?
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bool CPUStats::UpdateCPUData()
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{
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unsigned long long int usertime, nicetime, systemtime, idletime;
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unsigned long long int ioWait, irq, softIrq, steal, guest, guestnice;
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int cpuid = -1;
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if (!m_inited)
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return false;
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std::string line;
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std::ifstream file (PROCSTATFILE);
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bool ret = false;
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if (!file.is_open()) {
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std::cerr << "Failed to opening " << PROCSTATFILE << std::endl;
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return false;
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}
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do {
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if (!std::getline(file, line)) {
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break;
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} else if (!ret && sscanf(line.c_str(), "cpu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu",
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&usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice) == 10) {
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ret = true;
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calculateCPUData(m_cpuDataTotal, usertime, nicetime, systemtime, idletime, ioWait, irq, softIrq, steal, guest, guestnice);
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} else if (sscanf(line.c_str(), "cpu%4d %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu",
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&cpuid, &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice) == 11) {
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//std::cerr << "Parsing 'cpu" << cpuid << "' line:" << line << std::endl;
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if (!ret) {
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//std::cerr << "Failed to parse 'cpu' line" << std::endl;
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std::cerr << "Failed to parse 'cpu' line:" << line << std::endl;
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return false;
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}
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if (cpuid < 0 /* can it? */ || (size_t)cpuid > m_cpuData.size()) {
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std::cerr << "Cpu id '" << cpuid << "' is out of bounds" << std::endl;
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return false;
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}
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CPUData& cpuData = m_cpuData[cpuid];
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calculateCPUData(cpuData, usertime, nicetime, systemtime, idletime, ioWait, irq, softIrq, steal, guest, guestnice);
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cpuid = -1;
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} else {
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break;
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}
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} while(true);
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m_cpuPeriod = (double)m_cpuData[0].totalPeriod / m_cpuData.size();
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m_updatedCPUs = true;
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return ret;
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}
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bool CPUStats::UpdateCoreMhz() {
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m_coreMhz.clear();
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std::ifstream cpuInfo(PROCCPUINFOFILE);
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std::string row;
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size_t i = 0;
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while (std::getline(cpuInfo, row) && i < m_cpuData.size()) {
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if (row.find("MHz") != std::string::npos){
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row = std::regex_replace(row, std::regex(R"([^0-9.])"), "");
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if (!try_stoi(m_cpuData[i].mhz, row))
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m_cpuData[i].mhz = 0;
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i++;
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}
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}
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m_cpuDataTotal.cpu_mhz = 0;
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for (auto data : m_cpuData)
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m_cpuDataTotal.cpu_mhz += data.mhz;
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m_cpuDataTotal.cpu_mhz /= m_cpuData.size();
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return true;
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}
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bool CPUStats::UpdateCpuTemp() {
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if (!m_cpuTempFile)
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return false;
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int temp = 0;
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rewind(m_cpuTempFile);
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fflush(m_cpuTempFile);
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bool ret = (fscanf(m_cpuTempFile, "%d", &temp) == 1);
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m_cpuDataTotal.temp = temp / 1000;
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return ret;
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}
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static bool get_cpu_power_k10temp(CPUPowerData* cpuPowerData, int& power) {
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CPUPowerData_k10temp* powerData_k10temp = (CPUPowerData_k10temp*)cpuPowerData;
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if (!powerData_k10temp->coreVoltageFile || !powerData_k10temp->coreCurrentFile || !powerData_k10temp->socVoltageFile || !powerData_k10temp->socCurrentFile)
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return false;
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rewind(powerData_k10temp->coreVoltageFile);
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rewind(powerData_k10temp->coreCurrentFile);
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rewind(powerData_k10temp->socVoltageFile);
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rewind(powerData_k10temp->socCurrentFile);
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fflush(powerData_k10temp->coreVoltageFile);
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fflush(powerData_k10temp->coreCurrentFile);
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fflush(powerData_k10temp->socVoltageFile);
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fflush(powerData_k10temp->socCurrentFile);
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int coreVoltage, coreCurrent;
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int socVoltage, socCurrent;
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if (fscanf(powerData_k10temp->coreVoltageFile, "%d", &coreVoltage) != 1)
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return false;
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if (fscanf(powerData_k10temp->coreCurrentFile, "%d", &coreCurrent) != 1)
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return false;
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if (fscanf(powerData_k10temp->socVoltageFile, "%d", &socVoltage) != 1)
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return false;
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if (fscanf(powerData_k10temp->socCurrentFile, "%d", &socCurrent) != 1)
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return false;
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power = (coreVoltage * coreCurrent + socVoltage * socCurrent) / 1000000;
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return true;
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}
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static bool get_cpu_power_zenpower(CPUPowerData* cpuPowerData, int& power) {
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CPUPowerData_zenpower* powerData_zenpower = (CPUPowerData_zenpower*)cpuPowerData;
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if (!powerData_zenpower->corePowerFile || !powerData_zenpower->socPowerFile)
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return false;
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rewind(powerData_zenpower->corePowerFile);
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rewind(powerData_zenpower->socPowerFile);
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fflush(powerData_zenpower->corePowerFile);
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fflush(powerData_zenpower->socPowerFile);
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int corePower, socPower;
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if (fscanf(powerData_zenpower->corePowerFile, "%d", &corePower) != 1)
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return false;
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if (fscanf(powerData_zenpower->socPowerFile, "%d", &socPower) != 1)
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return false;
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power = (corePower + socPower) / 1000000;
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return true;
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}
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static bool get_cpu_power_rapl(CPUPowerData* cpuPowerData, int& power) {
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CPUPowerData_rapl* powerData_rapl = (CPUPowerData_rapl*)cpuPowerData;
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if (!powerData_rapl->energyCounterFile)
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return false;
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rewind(powerData_rapl->energyCounterFile);
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fflush(powerData_rapl->energyCounterFile);
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uint64_t energyCounterValue = 0;
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if (fscanf(powerData_rapl->energyCounterFile, "%" SCNu64, &energyCounterValue) != 1)
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return false;
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Clock::time_point now = Clock::now();
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Clock::duration timeDiff = now - powerData_rapl->lastCounterValueTime;
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int64_t timeDiffMicro = std::chrono::duration_cast<std::chrono::microseconds>(timeDiff).count();
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uint64_t energyCounterDiff = energyCounterValue - powerData_rapl->lastCounterValue;
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if (powerData_rapl->lastCounterValue > 0 && energyCounterValue > powerData_rapl->lastCounterValue)
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power = energyCounterDiff / timeDiffMicro;
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powerData_rapl->lastCounterValue = energyCounterValue;
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powerData_rapl->lastCounterValueTime = now;
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return true;
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}
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bool CPUStats::UpdateCpuPower() {
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if(!m_cpuPowerData)
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return false;
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int power = 0;
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switch(m_cpuPowerData->source) {
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case CPU_POWER_K10TEMP:
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if (!get_cpu_power_k10temp(m_cpuPowerData.get(), power)) return false;
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break;
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case CPU_POWER_ZENPOWER:
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if (!get_cpu_power_zenpower(m_cpuPowerData.get(), power)) return false;
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break;
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case CPU_POWER_RAPL:
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if (!get_cpu_power_rapl(m_cpuPowerData.get(), power)) return false;
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break;
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default:
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return false;
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}
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m_cpuDataTotal.power = power;
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return true;
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}
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static bool find_temp_input(const std::string path, std::string& input, const std::string& name)
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{
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auto files = ls(path.c_str(), "temp", LS_FILES);
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for (auto& file : files) {
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if (!ends_with(file, "_label"))
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continue;
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auto label = read_line(path + "/" + file);
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if (label != name)
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continue;
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auto uscore = file.find_first_of("_");
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if (uscore != std::string::npos) {
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file.erase(uscore, std::string::npos);
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input = path + "/" + file + "_input";
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return true;
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}
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}
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return false;
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}
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static bool find_fallback_temp_input(const std::string path, std::string& input)
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{
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auto files = ls(path.c_str(), "temp", LS_FILES);
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if (!files.size())
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return false;
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std::sort(files.begin(), files.end());
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for (auto& file : files) {
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if (!ends_with(file, "_input"))
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continue;
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input = path + "/" + file;
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#ifndef NDEBUG
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std::cerr << "fallback cpu temp input: " << input << "\n";
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#endif
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return true;
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}
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return false;
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}
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bool CPUStats::GetCpuFile() {
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if (m_cpuTempFile)
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return true;
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std::string name, path, input;
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std::string hwmon = "/sys/class/hwmon/";
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auto dirs = ls(hwmon.c_str());
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for (auto& dir : dirs) {
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path = hwmon + dir;
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name = read_line(path + "/name");
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#ifndef NDEBUG
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std::cerr << "hwmon: sensor name: " << name << std::endl;
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#endif
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if (name == "coretemp") {
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find_temp_input(path, input, "Package id 0");
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break;
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}
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else if ((name == "zenpower" || name == "k10temp")) {
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find_temp_input(path, input, "Tdie");
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break;
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} else if (name == "atk0110") {
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find_temp_input(path, input, "CPU Temperature");
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break;
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} else {
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path.clear();
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}
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}
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if (path.empty() || (!file_exists(input) && !find_fallback_temp_input(path, input))) {
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std::cerr << "MANGOHUD: Could not find cpu temp sensor location" << std::endl;
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return false;
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} else {
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#ifndef NDEBUG
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std::cerr << "hwmon: using input: " << input << std::endl;
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#endif
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m_cpuTempFile = fopen(input.c_str(), "r");
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}
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return true;
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}
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static bool find_voltage_input(const std::string path, std::string& input, const std::string& name)
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{
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auto files = ls(path.c_str(), "in", LS_FILES);
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for (auto& file : files) {
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if (!ends_with(file, "_label"))
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continue;
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auto label = read_line(path + "/" + file);
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if (label != name)
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continue;
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auto uscore = file.find_first_of("_");
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if (uscore != std::string::npos) {
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file.erase(uscore, std::string::npos);
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input = path + "/" + file + "_input";
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return true;
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}
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}
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return false;
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}
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static bool find_current_input(const std::string path, std::string& input, const std::string& name)
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{
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auto files = ls(path.c_str(), "curr", LS_FILES);
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for (auto& file : files) {
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if (!ends_with(file, "_label"))
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continue;
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auto label = read_line(path + "/" + file);
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if (label != name)
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continue;
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auto uscore = file.find_first_of("_");
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if (uscore != std::string::npos) {
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file.erase(uscore, std::string::npos);
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input = path + "/" + file + "_input";
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return true;
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}
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}
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return false;
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}
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static bool find_power_input(const std::string path, std::string& input, const std::string& name)
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{
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auto files = ls(path.c_str(), "power", LS_FILES);
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for (auto& file : files) {
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if (!ends_with(file, "_label"))
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continue;
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auto label = read_line(path + "/" + file);
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if (label != name)
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continue;
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auto uscore = file.find_first_of("_");
|
|
if (uscore != std::string::npos) {
|
|
file.erase(uscore, std::string::npos);
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|
input = path + "/" + file + "_input";
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CPUPowerData_k10temp* init_cpu_power_data_k10temp(const std::string path) {
|
|
auto powerData = std::make_unique<CPUPowerData_k10temp>();
|
|
|
|
std::string coreVoltageInput, coreCurrentInput;
|
|
std::string socVoltageInput, socCurrentInput;
|
|
|
|
if(!find_voltage_input(path, coreVoltageInput, "Vcore")) return nullptr;
|
|
if(!find_current_input(path, coreCurrentInput, "Icore")) return nullptr;
|
|
if(!find_voltage_input(path, socVoltageInput, "Vsoc")) return nullptr;
|
|
if(!find_current_input(path, socCurrentInput, "Isoc")) return nullptr;
|
|
|
|
#ifndef NDEBUG
|
|
std::cerr << "hwmon: using input: " << coreVoltageInput << std::endl;
|
|
std::cerr << "hwmon: using input: " << coreCurrentInput << std::endl;
|
|
std::cerr << "hwmon: using input: " << socVoltageInput << std::endl;
|
|
std::cerr << "hwmon: using input: " << socCurrentInput << std::endl;
|
|
#endif
|
|
|
|
powerData->coreVoltageFile = fopen(coreVoltageInput.c_str(), "r");
|
|
powerData->coreCurrentFile = fopen(coreCurrentInput.c_str(), "r");
|
|
powerData->socVoltageFile = fopen(socVoltageInput.c_str(), "r");
|
|
powerData->socCurrentFile = fopen(socCurrentInput.c_str(), "r");
|
|
|
|
return powerData.release();
|
|
}
|
|
|
|
CPUPowerData_zenpower* init_cpu_power_data_zenpower(const std::string path) {
|
|
auto powerData = std::make_unique<CPUPowerData_zenpower>();
|
|
|
|
std::string corePowerInput, socPowerInput;
|
|
|
|
if(!find_power_input(path, corePowerInput, "SVI2_P_Core")) return nullptr;
|
|
if(!find_power_input(path, socPowerInput, "SVI2_P_SoC")) return nullptr;
|
|
|
|
#ifndef NDEBUG
|
|
std::cerr << "hwmon: using input: " << corePowerInput << std::endl;
|
|
std::cerr << "hwmon: using input: " << socPowerInput << std::endl;
|
|
#endif
|
|
|
|
powerData->corePowerFile = fopen(corePowerInput.c_str(), "r");
|
|
powerData->socPowerFile = fopen(socPowerInput.c_str(), "r");
|
|
|
|
return powerData.release();
|
|
}
|
|
|
|
CPUPowerData_rapl* init_cpu_power_data_rapl(const std::string path) {
|
|
auto powerData = std::make_unique<CPUPowerData_rapl>();
|
|
|
|
std::string energyCounterPath = path + "/energy_uj";
|
|
if (!file_exists(energyCounterPath)) return nullptr;
|
|
|
|
powerData->energyCounterFile = fopen(energyCounterPath.c_str(), "r");
|
|
|
|
return powerData.release();
|
|
}
|
|
|
|
bool CPUStats::InitCpuPowerData() {
|
|
if(m_cpuPowerData != nullptr)
|
|
return true;
|
|
|
|
std::string name, path;
|
|
std::string hwmon = "/sys/class/hwmon/";
|
|
|
|
CPUPowerData* cpuPowerData = nullptr;
|
|
|
|
auto dirs = ls(hwmon.c_str());
|
|
for (auto& dir : dirs) {
|
|
path = hwmon + dir;
|
|
name = read_line(path + "/name");
|
|
#ifndef NDEBUG
|
|
std::cerr << "hwmon: sensor name: " << name << std::endl;
|
|
#endif
|
|
if (name == "k10temp") {
|
|
cpuPowerData = (CPUPowerData*)init_cpu_power_data_k10temp(path);
|
|
break;
|
|
} else if (name == "zenpower") {
|
|
cpuPowerData = (CPUPowerData*)init_cpu_power_data_zenpower(path);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!cpuPowerData) {
|
|
std::string powercap = "/sys/class/powercap/";
|
|
auto powercap_dirs = ls(powercap.c_str());
|
|
for (auto& dir : powercap_dirs) {
|
|
path = powercap + dir;
|
|
name = read_line(path + "/name");
|
|
#ifndef NDEBUG
|
|
std::cerr << "powercap: name: " << name << std::endl;
|
|
#endif
|
|
if (name == "package-0") {
|
|
cpuPowerData = (CPUPowerData*)init_cpu_power_data_rapl(path);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(cpuPowerData == nullptr) {
|
|
std::cerr << "MANGOHUD: Failed to initialize CPU power data" << std::endl;
|
|
return false;
|
|
}
|
|
|
|
m_cpuPowerData.reset(cpuPowerData);
|
|
return true;
|
|
}
|
|
|
|
CPUStats cpuStats;
|