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Code refactor #408

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Code refactor #408

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651a80d
Using '= default', remove unused vars, code simplify
GermanAizek Jun 3, 2022
f7de464
Vars renamed like others, using std::move() and str to char optimize
GermanAizek Jun 3, 2022
b0662ef
Added const reference params
GermanAizek Jun 3, 2022
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18 changes: 8 additions & 10 deletions src/cpucounters.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4046,7 +4046,7 @@ void PCM::cleanupRDT(const bool silent)
if (!silent) std::cerr << " Freeing up all RMIDs\n";
}

void PCM::setOutput(const std::string filename, const bool cerrToo)
void PCM::setOutput(const std::string & filename, const bool cerrToo)
{
outfile = new std::ofstream(filename.c_str());
backup_ofile = std::cout.rdbuf();
Expand Down Expand Up @@ -4700,10 +4700,11 @@ PCM::ErrorCode PCM::program(const RawPMUConfigs& curPMUConfigs_, const bool sile
}
if (globalRegPos < corePMUConfig.programmable.size())
{
conf.OffcoreResponseMsrValue[0] = corePMUConfig.programmable[globalRegPos].first[OCR0Pos];
conf.OffcoreResponseMsrValue[1] = corePMUConfig.programmable[globalRegPos].first[OCR1Pos];
conf.LoadLatencyMsrValue = corePMUConfig.programmable[globalRegPos].first[LoadLatencyPos];
conf.FrontendMsrValue = corePMUConfig.programmable[globalRegPos].first[FrontendPos];
const auto& cfgProg = corePMUConfig.programmable[globalRegPos];
conf.OffcoreResponseMsrValue[0] = cfgProg.first[OCR0Pos];
conf.OffcoreResponseMsrValue[1] = cfgProg.first[OCR1Pos];
conf.LoadLatencyMsrValue = cfgProg.first[LoadLatencyPos];
conf.FrontendMsrValue = cfgProg.first[FrontendPos];
}
conf.nGPCounters = (uint32)c;
conf.gpCounterCfg = regs;
Expand Down Expand Up @@ -5696,7 +5697,7 @@ void initSocket2Bus(std::vector<std::pair<uint32, uint32> > & socket2bus, uint32
if(DEV_IDS[i] == device_id)
{
// std::cout << "DEBUG: found bus " << std::hex << bus << " with device ID " << device_id << std::dec << "\n";
socket2bus.push_back(std::make_pair(mcfg[s].PCISegmentGroupNumber,bus));
socket2bus.emplace_back(std::make_pair(mcfg[s].PCISegmentGroupNumber,bus));
break;
}
}
Expand Down Expand Up @@ -6693,10 +6694,7 @@ size_t ServerPCICFGUncore::getNumMCChannels(const uint32 controller) const
return 0;
}

ServerPCICFGUncore::~ServerPCICFGUncore()
{
}

ServerPCICFGUncore::~ServerPCICFGUncore() = default;

void ServerPCICFGUncore::programServerUncoreMemoryMetrics(const ServerUncoreMemoryMetrics & metrics, const int rankA, const int rankB)
{
Expand Down
3 changes: 1 addition & 2 deletions src/cpucounters.h
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Expand Up @@ -675,7 +675,7 @@ class PCM_API PCM
}

//! \brief Redirects output destination to provided file, instead of std::cout and std::cerr (optional)
static void setOutput(const std::string filename, const bool cerrToo = false);
static void setOutput(const std::string & filename, const bool cerrToo = false);

//! \brief Restores output, closes output file if opened
void restoreOutput();
Expand Down Expand Up @@ -977,7 +977,6 @@ class PCM_API PCM
auto ctrl = pmu.counterControl[c];
if (ctrl.get() != nullptr)
{
*ctrl = MC_CH_PCI_PMON_CTL_EN;
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I would prefer if you keep " *ctrl = MC_CH_PCI_PMON_CTL_EN;" because IIRC some PMU docs suggested that the PMU control register needs to be written without the event/umask and then in the next write the event/umask needs to be written.

*ctrl = MC_CH_PCI_PMON_CTL_EN | *curEvent;
}
}
Expand Down
2 changes: 1 addition & 1 deletion src/lspci.h
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Expand Up @@ -418,7 +418,7 @@ void print_pci(struct pci p, const PCIDB & pciDB)
void load_PCIDB(PCIDB & pciDB)
{
std::ifstream in(PCI_IDS_PATH);
std::string line, item;
std::string line;

if (!in.is_open())
{
Expand Down
2 changes: 1 addition & 1 deletion src/pcm-core.cpp
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Expand Up @@ -120,7 +120,7 @@ extern "C" {
}
}

void print_usage(const string progname)
void print_usage(const string & progname)
{
cerr << "\n Usage: \n " << progname
<< " --help | [delay] [options] [-- external_program [external_program_options]]\n";
Expand Down
29 changes: 14 additions & 15 deletions src/pcm-iio.cpp
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Expand Up @@ -180,14 +180,14 @@ void print_nameMap() {
}


string a_title (const string &init, const string &name) {
string a_title(const string &init, const string &name) {
char begin = init[0];
string row = init;
row += name;
return row + begin;
}

string a_data (string init, struct data d) {
string a_data(const string &init, struct data d) {
char begin = init[0];
string row = init;
string str_d = unit_format(d.value);
Expand All @@ -198,7 +198,7 @@ string a_data (string init, struct data d) {
return row + begin;
}

string build_line(string init, string name, bool last_char = true, char this_char = '_')
string build_line(const string &init, const string &name, bool last_char = true, char this_char = '_')
{
char begin = init[0];
string row = init;
Expand All @@ -209,12 +209,12 @@ string build_line(string init, string name, bool last_char = true, char this_cha
}


string a_header_footer (string init, string name)
string a_header_footer(const string &init, const string &name)
{
return build_line(init, name);
}

vector<string> combine_stack_name_and_counter_names(string stack_name)
vector<string> combine_stack_name_and_counter_names(const string &stack_name)
{

vector<string> v;
Expand All @@ -223,7 +223,7 @@ vector<string> combine_stack_name_and_counter_names(string stack_name)
for (std::map<string,std::pair<h_id,std::map<string,v_id>>>::const_iterator iunit = nameMap.begin(); iunit != nameMap.end(); ++iunit) {
string h_name = iunit->first;
int h_id = (iunit->second).first;
tmp[h_id] = h_name;
tmp[h_id] = std::move(h_name);
//cout << "h_id:" << h_id << " name:" << h_name << "\n";
}
//XXX: How to simplify and just combine tmp & v?
Expand Down Expand Up @@ -350,7 +350,7 @@ vector<string> build_display(vector<struct iio_stacks_on_socket>& iios, vector<s

std::string build_csv_row(const std::vector<std::string>& chunks, const std::string& delimiter)
{
return std::accumulate(chunks.begin(), chunks.end(), std::string(""),
return std::accumulate(chunks.begin(), chunks.end(), std::string(),
[delimiter](const string &left, const string &right){
return left.empty() ? right : left + delimiter + right;
});
Expand Down Expand Up @@ -386,7 +386,6 @@ vector<string> build_csv(vector<struct iio_stacks_on_socket>& iios, vector<struc
for (std::map<uint32_t,map<uint32_t,struct counter*>>::const_iterator vunit = v_sort.cbegin(); vunit != v_sort.cend(); ++vunit) {
map<uint32_t, struct counter*> h_array = vunit->second;
uint32_t vv_id = vunit->first;
vector<uint64_t> h_data;
string v_name = h_array[0]->v_event_name;
if (human_readable) {
v_name += string(max_name_width - (v_name.size()), ' ');
Expand Down Expand Up @@ -545,7 +544,7 @@ bool IPlatformMapping10Nm::getSadIdRootBusMap(uint32_t socket_id, std::map<uint8

if ((sad_ctrl_cfg & 0xf) == socket_id) {
uint8_t sid = (sad_ctrl_cfg >> 4) & 0x7;
sad_id_bus_map.insert(std::pair<uint8_t, uint8_t>(sid, (uint8_t)bus));
sad_id_bus_map.emplace(sid, (uint8_t)bus);
}
}
}
Expand Down Expand Up @@ -921,19 +920,19 @@ vector<struct counter> load_events(PCM * m, const char* fn)
/* Ignore anyline with # */
//TODO: substring until #, if len == 0, skip, else parse normally
pccr->set_ccr_value(0);
if (line.find("#") != std::string::npos)
if (line.find('#') != std::string::npos)
continue;
/* If line does not have any deliminator, we ignore it as well */
if (line.find("=") == std::string::npos)
if (line.find('=') == std::string::npos)
continue;
std::istringstream iss(line);
string h_name, v_name;
while (std::getline(iss, item, ',')) {
std::string key, value;
uint64 numValue;
/* assume the token has the format <key>=<value> */
key = item.substr(0,item.find("="));
value = item.substr(item.find("=")+1);
key = item.substr(0,item.find('='));
value = item.substr(item.find('=')+1);
istringstream iss2(value);
iss2 >> setbase(0) >> numValue;

Expand Down Expand Up @@ -1120,11 +1119,11 @@ bool extract_argument_value(const char* arg, std::initializer_list<const char*>
const auto arg_name_len = strlen(arg_name);
if (arg_len > arg_name_len && strncmp(arg, arg_name, arg_name_len) == 0 && arg[arg_name_len] == '=') {
value = arg + arg_name_len + 1;
const auto last_pos = value.find_last_not_of("\"");
const auto last_pos = value.find_last_not_of('\"');
if (last_pos != string::npos) {
value.erase(last_pos + 1);
}
const auto first_pos = value.find_first_not_of("\"");
const auto first_pos = value.find_first_not_of('\"');
if (first_pos != string::npos) {
value.erase(0, first_pos);
}
Expand Down
10 changes: 5 additions & 5 deletions src/pcm-memory.cpp
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Expand Up @@ -81,9 +81,9 @@ bool anyPmem(const ServerUncoreMemoryMetrics & metrics)

bool skipInactiveChannels = true;

void print_help(const string prog_name)
void print_help(const string & progname)
{
cerr << "\n Usage: \n " << prog_name
cerr << "\n Usage: \n " << progname
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Can you merge this change into the previous change? I would like each change to compile on its own and it is clear that this cannot compile on its own and needs both changes

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the change of the parameter name is not necessary and requires changing the name in other code lines. Could you please keep the old name?

<< " --help | [delay] [options] [-- external_program [external_program_options]]\n";
cerr << " <delay> => time interval to sample performance counters.\n";
cerr << " If not specified, or 0, with external program given\n";
Expand All @@ -107,9 +107,9 @@ void print_help(const string prog_name)
cerr << " --uninstallDriver | --installDriver=> (un)install driver\n";
#endif
cerr << " Examples:\n";
cerr << " " << prog_name << " 1 => print counters every second without core and socket output\n";
cerr << " " << prog_name << " 0.5 -csv=test.log => twice a second save counter values to test.log in CSV format\n";
cerr << " " << prog_name << " /csv 5 2>/dev/null => one sampe every 5 seconds, and discard all diagnostic output\n";
cerr << " " << progname << " 1 => print counters every second without core and socket output\n";
cerr << " " << progname << " 0.5 -csv=test.log => twice a second save counter values to test.log in CSV format\n";
cerr << " " << progname << " /csv 5 2>/dev/null => one sampe every 5 seconds, and discard all diagnostic output\n";
cerr << "\n";
}

Expand Down
2 changes: 1 addition & 1 deletion src/pcm-power.cpp
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Expand Up @@ -274,7 +274,7 @@ int main(int argc, char * argv[])
std::vector<std::string> skxLicenseStr = { "Core cycles where the core was running with power-delivery for baseline license level 0. This includes non-AVX codes, SSE, AVX 128-bit, and low-current AVX 256-bit codes.",
"Core cycles where the core was running with power-delivery for license level 1. This includes high current AVX 256-bit instructions as well as low current AVX 512-bit instructions.",
"Core cycles where the core was running with power-delivery for license level 2 (introduced in Skylake Server michroarchtecture). This includes high current AVX 512-bit instructions." };
licenseStr = skxLicenseStr;
licenseStr = std::move(skxLicenseStr);
regs[0].fields.event_select = 0x28; // CORE_POWER.LVL0_TURBO_LICENSE
regs[0].fields.umask = 0x07; // CORE_POWER.LVL0_TURBO_LICENSE
regs[1].fields.event_select = 0x28; // CORE_POWER.LVL1_TURBO_LICENSE
Expand Down
45 changes: 26 additions & 19 deletions src/pcm.cpp
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Expand Up @@ -79,9 +79,9 @@ double getAverageUncoreFrequencyGhz(const UncoreStateType& before, const UncoreS
return getAverageUncoreFrequency(before, after) / 1e9;
}

void print_help(const string prog_name)
void print_help(const string & progname)
{
cerr << "\n Usage: \n " << prog_name
cerr << "\n Usage: \n " << progname
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Can you merge this change into the previous change? I would like each change to compile on its own and it is clear that this cannot compile on its own and needs both changes

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same here. Please keep the old name.

<< " --help | [delay] [options] [-- external_program [external_program_options]]\n";
cerr << " <delay> => time interval to sample performance counters.\n";
cerr << " If not specified, or 0, with external program given\n";
Expand All @@ -103,10 +103,10 @@ void print_help(const string prog_name)
cerr << " -i[=number] | /i[=number] => allow to determine number of iterations\n";
print_help_force_rtm_abort_mode(37);
cerr << " Examples:\n";
cerr << " " << prog_name << " 1 -nc -ns => print counters every second without core and socket output\n";
cerr << " " << prog_name << " 1 -i=10 => print counters every second 10 times and exit\n";
cerr << " " << prog_name << " 0.5 -csv=test.log => twice a second save counter values to test.log in CSV format\n";
cerr << " " << prog_name << " /csv 5 2>/dev/null => one sampe every 5 seconds, and discard all diagnostic output\n";
cerr << " " << progname << " 1 -nc -ns => print counters every second without core and socket output\n";
cerr << " " << progname << " 1 -i=10 => print counters every second 10 times and exit\n";
cerr << " " << progname << " 0.5 -csv=test.log => twice a second save counter values to test.log in CSV format\n";
cerr << " " << progname << " /csv 5 2>/dev/null => one sampe every 5 seconds, and discard all diagnostic output\n";
cerr << "\n";
}

Expand Down Expand Up @@ -185,14 +185,22 @@ void print_output(PCM * m,
cout << " L3MPI : number of L3 (read) cache misses per instruction\n";
if (m->isL2CacheMissesAvailable())
cout << " L2MPI : number of L2 (read) cache misses per instruction\n";
if (m->memoryTrafficMetricsAvailable()) cout << " READ : bytes read from main memory controller (in GBytes)\n";
if (m->memoryTrafficMetricsAvailable()) cout << " WRITE : bytes written to main memory controller (in GBytes)\n";
if (m->localMemoryRequestRatioMetricAvailable()) cout << " LOCAL : ratio of local memory requests to memory controller in %\n";
if (m->LLCReadMissLatencyMetricsAvailable()) cout << "LLCRDMISSLAT: average latency of last level cache miss for reads and prefetches (in ns)\n";
if (m->PMMTrafficMetricsAvailable()) cout << " PMM RD : bytes read from PMM memory (in GBytes)\n";
if (m->PMMTrafficMetricsAvailable()) cout << " PMM WR : bytes written to PMM memory (in GBytes)\n";
if (m->MCDRAMmemoryTrafficMetricsAvailable()) cout << " MCDRAM READ : bytes read from MCDRAM controller (in GBytes)\n";
if (m->MCDRAMmemoryTrafficMetricsAvailable()) cout << " MCDRAM WRITE : bytes written to MCDRAM controller (in GBytes)\n";
if (m->memoryTrafficMetricsAvailable()) {
cout << " READ : bytes read from main memory controller (in GBytes)\n";
cout << " WRITE : bytes written to main memory controller (in GBytes)\n";
}
if (m->localMemoryRequestRatioMetricAvailable()) {
cout << " LOCAL : ratio of local memory requests to memory controller in %\n";
cout << "LLCRDMISSLAT: average latency of last level cache miss for reads and prefetches (in ns)\n";
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the availability of LLCRDMISSLAT metric should be checked with m->LLCReadMissLatencyMetricsAvailable() and not with m->localMemoryRequestRatioMetricAvailable()

}
if (m->PMMTrafficMetricsAvailable()) {
cout << " PMM RD : bytes read from PMM memory (in GBytes)\n";
cout << " PMM WR : bytes written to PMM memory (in GBytes)\n";
}
if (m->MCDRAMmemoryTrafficMetricsAvailable()) {
cout << " MCDRAM READ : bytes read from MCDRAM controller (in GBytes)\n";
cout << " MCDRAM WRITE : bytes written to MCDRAM controller (in GBytes)\n";
}
if (m->memoryIOTrafficMetricAvailable()) {
cout << " IO : bytes read/written due to IO requests to memory controller (in GBytes); this may be an over estimate due to same-cache-line partial requests\n";
cout << " IA : bytes read/written due to IA requests to memory controller (in GBytes); this may be an over estimate due to same-cache-line partial requests\n";
Expand Down Expand Up @@ -437,12 +445,11 @@ void print_output(PCM * m,
cout << " PMM RD | PMM WR |";
if (m->MCDRAMmemoryTrafficMetricsAvailable())
cout << " MCDRAM READ | MCDRAM WRITE |";
if (m->memoryIOTrafficMetricAvailable())
if (m->memoryIOTrafficMetricAvailable()) {
cout << " IO |";
if (m->memoryIOTrafficMetricAvailable())
cout << " IA |";
if (m->memoryIOTrafficMetricAvailable())
cout << " GT |";
}
if (m->packageEnergyMetricsAvailable())
cout << " CPU energy |";
if (m->dramEnergyMetricsAvailable())
Expand Down Expand Up @@ -547,13 +554,13 @@ void print_basic_metrics_csv_header(const PCM * m)
cout << "Frontend_bound(%),Bad_Speculation(%),Backend_Bound(%),Retiring(%),";
}

void print_csv_header_helper(string header, int count=1){
void print_csv_header_helper(const string & header, int count=1){
for(int i = 0; i < count; i++){
cout << header << ",";
}
}

void print_basic_metrics_csv_semicolons(const PCM * m, string header)
void print_basic_metrics_csv_semicolons(const PCM * m, const string & header)
{
print_csv_header_helper(header, 3); // EXEC;IPC;FREQ;
if (m->isActiveRelativeFrequencyAvailable())
Expand Down
2 changes: 1 addition & 1 deletion src/topology.h
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Expand Up @@ -107,7 +107,7 @@ class HyperThread : public SystemObject
}

void addMSRHandle( std::shared_ptr<SafeMsrHandle> handle ) {
msrHandle_ = handle;
msrHandle_ = std::move(handle);
}

int32 threadID() const {
Expand Down
2 changes: 1 addition & 1 deletion src/utils.cpp
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Expand Up @@ -596,7 +596,7 @@ std::vector<std::string> split(const std::string & str, const char delim)
uint64 read_number(const char* str)
{
std::istringstream stream(str);
if (strstr(str, "x")) stream >> std::hex;
if (strchr(str, 'x')) stream >> std::hex;
uint64 result = 0;
stream >> result;
return result;
Expand Down
4 changes: 2 additions & 2 deletions src/utils.h
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Expand Up @@ -322,7 +322,7 @@ class MainLoop
{
unsigned numberOfIterations = 0;
public:
MainLoop() {}
MainLoop() = default;
bool parseArg(const char * arg)
{
if (strncmp(arg, "-i", 2) == 0 ||
Expand Down Expand Up @@ -372,7 +372,7 @@ struct StackedBarItem {
double fraction{0.0};
std::string label{""}; // not used currently
char fill{'0'};
StackedBarItem() {}
StackedBarItem() = default;
StackedBarItem(double fraction_,
const std::string & label_,
char fill_) : fraction(fraction_), label(label_), fill(fill_) {}
Expand Down