htop/pcp/PCPProcessList.c

780 lines
27 KiB
C

/*
htop - PCPProcessList.c
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "PCPProcessList.h"
#include <math.h>
#include "CRT.h"
#include "Macros.h"
#include "Object.h"
#include "PCPProcess.h"
#include "Process.h"
#include "Settings.h"
#include "XUtils.h"
static int PCPProcessList_computeCPUcount(void) {
int cpus;
if ((cpus = Platform_getMaxCPU()) <= 0)
cpus = Metric_instanceCount(PCP_PERCPU_SYSTEM);
return cpus > 1 ? cpus : 1;
}
static void PCPProcessList_updateCPUcount(PCPProcessList* this) {
ProcessList* pl = &(this->super);
int cpus = PCPProcessList_computeCPUcount();
if (cpus == pl->cpuCount)
return;
pl->cpuCount = cpus;
free(this->percpu);
free(this->values);
this->percpu = xCalloc(cpus, sizeof(pmAtomValue *));
for (int i = 0; i < cpus; i++)
this->percpu[i] = xCalloc(CPU_METRIC_COUNT, sizeof(pmAtomValue));
this->values = xCalloc(cpus, sizeof(pmAtomValue));
}
static char* setUser(UsersTable* this, unsigned int uid, int pid, int offset) {
char* name = Hashtable_get(this->users, uid);
if (name)
return name;
pmAtomValue value;
if (Metric_instance(PCP_PROC_ID_USER, pid, offset, &value, PM_TYPE_STRING)) {
Hashtable_put(this->users, uid, value.cp);
name = value.cp;
}
return name;
}
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
PCPProcessList* this = xCalloc(1, sizeof(PCPProcessList));
ProcessList* super = &(this->super);
ProcessList_init(super, Class(PCPProcess), usersTable, pidMatchList, userId);
struct timeval timestamp;
gettimeofday(&timestamp, NULL);
this->timestamp = pmtimevalToReal(&timestamp);
this->cpu = xCalloc(CPU_METRIC_COUNT, sizeof(pmAtomValue));
PCPProcessList_updateCPUcount(this);
return super;
}
void ProcessList_delete(ProcessList* pl) {
PCPProcessList* this = (PCPProcessList*) pl;
ProcessList_done(pl);
free(this->values);
for (int i = 0; i < pl->cpuCount; i++)
free(this->percpu[i]);
free(this->percpu);
free(this->cpu);
free(this);
}
static inline unsigned long long PCPProcessList_adjustTime(unsigned long long t) {
return t / 10;
}
static void PCPProcessList_updateID(Process* process, int pid, int offset) {
pmAtomValue value;
if (Metric_instance(PCP_PROC_TGID, pid, offset, &value, PM_TYPE_U32))
process->tgid = value.ul;
else
process->tgid = 1;
if (Metric_instance(PCP_PROC_PPID, pid, offset, &value, PM_TYPE_U32))
process->ppid = value.ul;
else
process->ppid = 1;
if (Metric_instance(PCP_PROC_STATE, pid, offset, &value, PM_TYPE_STRING)) {
process->state = value.cp[0];
free(value.cp);
} else {
process->state = 'X';
}
}
static void PCPProcessList_updateInfo(Process* process, int pid, int offset, char* command, size_t commLen) {
PCPProcess* pp = (PCPProcess*) process;
pmAtomValue value;
if (!Metric_instance(PCP_PROC_CMD, pid, offset, &value, PM_TYPE_STRING))
value.cp = xStrdup("<unknown>");
String_safeStrncpy(command, value.cp, commLen);
free(value.cp);
if (Metric_instance(PCP_PROC_PGRP, pid, offset, &value, PM_TYPE_U32))
process->pgrp = value.ul;
else
process->pgrp = 0;
if (Metric_instance(PCP_PROC_SESSION, pid, offset, &value, PM_TYPE_U32))
process->session = value.ul;
else
process->session = 0;
if (Metric_instance(PCP_PROC_TTY, pid, offset, &value, PM_TYPE_U32))
process->tty_nr = value.ul;
else
process->tty_nr = 0;
if (Metric_instance(PCP_PROC_TTYPGRP, pid, offset, &value, PM_TYPE_U32))
process->tpgid = value.ul;
else
process->tpgid = 0;
if (Metric_instance(PCP_PROC_MINFLT, pid, offset, &value, PM_TYPE_U32))
process->minflt = value.ul;
else
process->minflt = 0;
if (Metric_instance(PCP_PROC_CMINFLT, pid, offset, &value, PM_TYPE_U32))
pp->cminflt = value.ul;
else
pp->cminflt = 0;
if (Metric_instance(PCP_PROC_MAJFLT, pid, offset, &value, PM_TYPE_U32))
process->majflt = value.ul;
else
process->majflt = 0;
if (Metric_instance(PCP_PROC_CMAJFLT, pid, offset, &value, PM_TYPE_U32))
pp->cmajflt = value.ul;
else
pp->cmajflt = 0;
if (Metric_instance(PCP_PROC_UTIME, pid, offset, &value, PM_TYPE_U64))
pp->utime = PCPProcessList_adjustTime(value.ull);
else
pp->utime = 0;
if (Metric_instance(PCP_PROC_STIME, pid, offset, &value, PM_TYPE_U64))
pp->stime = PCPProcessList_adjustTime(value.ull);
else
pp->stime = 0;
if (Metric_instance(PCP_PROC_CUTIME, pid, offset, &value, PM_TYPE_U64))
pp->cutime = PCPProcessList_adjustTime(value.ull);
else
pp->cutime = 0;
if (Metric_instance(PCP_PROC_CSTIME, pid, offset, &value, PM_TYPE_U64))
pp->cstime = PCPProcessList_adjustTime(value.ull);
else
pp->cstime = 0;
if (Metric_instance(PCP_PROC_PRIORITY, pid, offset, &value, PM_TYPE_U32))
process->priority = value.ul;
else
process->priority = 0;
if (Metric_instance(PCP_PROC_NICE, pid, offset, &value, PM_TYPE_32))
process->nice = value.l;
else
process->nice = 0;
if (Metric_instance(PCP_PROC_THREADS, pid, offset, &value, PM_TYPE_U32))
process->nlwp = value.ul;
else
process->nlwp = 0;
if (Metric_instance(PCP_PROC_STARTTIME, pid, offset, &value, PM_TYPE_U64))
process->starttime_ctime = PCPProcessList_adjustTime(value.ull);
else
process->starttime_ctime = 0;
if (Metric_instance(PCP_PROC_PROCESSOR, pid, offset, &value, PM_TYPE_U32))
process->processor = value.ul;
else
process->processor = 0;
process->time = pp->utime + pp->stime;
}
static void PCPProcessList_updateIO(PCPProcess* process, int pid, int offset, unsigned long long now) {
pmAtomValue value;
if (Metric_instance(PCP_PROC_IO_RCHAR, pid, offset, &value, PM_TYPE_U64))
process->io_rchar = value.ull / ONE_K;
else
process->io_rchar = ULLONG_MAX;
if (Metric_instance(PCP_PROC_IO_WCHAR, pid, offset, &value, PM_TYPE_U64))
process->io_wchar = value.ull / ONE_K;
else
process->io_wchar = ULLONG_MAX;
if (Metric_instance(PCP_PROC_IO_SYSCR, pid, offset, &value, PM_TYPE_U64))
process->io_syscr = value.ull;
else
process->io_syscr = ULLONG_MAX;
if (Metric_instance(PCP_PROC_IO_SYSCW, pid, offset, &value, PM_TYPE_U64))
process->io_syscw = value.ull;
else
process->io_syscw = ULLONG_MAX;
if (Metric_instance(PCP_PROC_IO_CANCELLED, pid, offset, &value, PM_TYPE_U64))
process->io_cancelled_write_bytes = value.ull / ONE_K;
else
process->io_cancelled_write_bytes = ULLONG_MAX;
if (Metric_instance(PCP_PROC_IO_READB, pid, offset, &value, PM_TYPE_U64)) {
unsigned long long last_read = process->io_read_bytes;
process->io_read_bytes = value.ull / ONE_K;
process->io_rate_read_bps =
ONE_K * (process->io_read_bytes - last_read) /
(now - process->io_last_scan_time);
} else {
process->io_read_bytes = ULLONG_MAX;
process->io_rate_read_bps = NAN;
}
if (Metric_instance(PCP_PROC_IO_WRITEB, pid, offset, &value, PM_TYPE_U64)) {
unsigned long long last_write = process->io_write_bytes;
process->io_write_bytes = value.ull;
process->io_rate_write_bps =
ONE_K * (process->io_write_bytes - last_write) /
(now - process->io_last_scan_time);
} else {
process->io_write_bytes = ULLONG_MAX;
process->io_rate_write_bps = NAN;
}
process->io_last_scan_time = now;
}
static void PCPProcessList_updateMemory(PCPProcess* process, int pid, int offset) {
pmAtomValue value;
if (Metric_instance(PCP_PROC_MEM_SIZE, pid, offset, &value, PM_TYPE_U32))
process->super.m_virt = value.ul;
else
process->super.m_virt = 0;
if (Metric_instance(PCP_PROC_MEM_RSS, pid, offset, &value, PM_TYPE_U32))
process->super.m_resident = value.ul;
else
process->super.m_resident = 0;
if (Metric_instance(PCP_PROC_MEM_SHARE, pid, offset, &value, PM_TYPE_U32))
process->m_share = value.ul;
else
process->m_share = 0;
if (Metric_instance(PCP_PROC_MEM_TEXTRS, pid, offset, &value, PM_TYPE_U32))
process->m_trs = value.ul;
else
process->m_trs = 0;
if (Metric_instance(PCP_PROC_MEM_LIBRS, pid, offset, &value, PM_TYPE_U32))
process->m_lrs = value.ul;
else
process->m_lrs = 0;
if (Metric_instance(PCP_PROC_MEM_DATRS, pid, offset, &value, PM_TYPE_U32))
process->m_drs = value.ul;
else
process->m_drs = 0;
if (Metric_instance(PCP_PROC_MEM_DIRTY, pid, offset, &value, PM_TYPE_U32))
process->m_dt = value.ul;
else
process->m_dt = 0;
}
static void PCPProcessList_updateSmaps(PCPProcess* process, pid_t pid, int offset) {
pmAtomValue value;
if (Metric_instance(PCP_PROC_SMAPS_PSS, pid, offset, &value, PM_TYPE_U64))
process->m_pss = value.ull;
else
process->m_pss = 0LL;
if (Metric_instance(PCP_PROC_SMAPS_SWAP, pid, offset, &value, PM_TYPE_U64))
process->m_swap = value.ull;
else
process->m_swap = 0LL;
if (Metric_instance(PCP_PROC_SMAPS_SWAPPSS, pid, offset, &value, PM_TYPE_U64))
process->m_psswp = value.ull;
else
process->m_psswp = 0LL;
}
static void PCPProcessList_readOomData(PCPProcess* process, int pid, int offset) {
pmAtomValue value;
if (Metric_instance(PCP_PROC_OOMSCORE, pid, offset, &value, PM_TYPE_U32))
process->oom = value.ul;
else
process->oom = 0;
}
static void PCPProcessList_readCtxtData(PCPProcess* process, int pid, int offset) {
pmAtomValue value;
unsigned long ctxt = 0;
if (Metric_instance(PCP_PROC_VCTXSW, pid, offset, &value, PM_TYPE_U32))
ctxt += value.ul;
if (Metric_instance(PCP_PROC_NVCTXSW, pid, offset, &value, PM_TYPE_U32))
ctxt += value.ul;
if (ctxt > process->ctxt_total)
process->ctxt_diff = ctxt - process->ctxt_total;
else
process->ctxt_diff = 0;
process->ctxt_total = ctxt;
}
static char* setString(Metric metric, int pid, int offset, char* string) {
if (string)
free(string);
pmAtomValue value;
if (Metric_instance(metric, pid, offset, &value, PM_TYPE_STRING))
string = value.cp;
else
string = NULL;
return string;
}
static void PCPProcessList_updateTTY(PCPProcess* process, int pid, int offset) {
process->ttyDevice = setString(PCP_PROC_TTYNAME, pid, offset, process->ttyDevice);
}
static void PCPProcessList_readCGroups(PCPProcess* process, int pid, int offset) {
process->cgroup = setString(PCP_PROC_CGROUPS, pid, offset, process->cgroup);
}
static void PCPProcessList_readSecattrData(PCPProcess* process, int pid, int offset) {
process->secattr = setString(PCP_PROC_LABELS, pid, offset, process->secattr);
}
static void PCPProcessList_updateUsername(Process* process, int pid, int offset, UsersTable* users) {
unsigned int uid = 0;
pmAtomValue value;
if (Metric_instance(PCP_PROC_ID_UID, pid, offset, &value, PM_TYPE_U32))
uid = value.ul;
process->st_uid = uid;
process->user = setUser(users, uid, pid, offset);
}
static void PCPProcessList_updateCmdline(Process* process, int pid, int offset, const char* comm) {
pmAtomValue value;
if (!Metric_instance(PCP_PROC_PSARGS, pid, offset, &value, PM_TYPE_STRING)) {
if (process->state != 'Z')
Process_setKernelThread(process, true);
else
process->basenameOffset = 0;
return;
}
char *command = value.cp;
int length = strlen(command);
if (command[0] != '(') {
Process_setKernelThread(process, false);
} else {
++command;
--length;
if (command[length-1] == ')')
command[length-1] = '\0';
Process_setKernelThread(process, true);
}
int tokenEnd = 0;
int tokenStart = 0;
int lastChar = 0;
for (int i = 0; i < length; i++) {
/* htop considers the next character after the last / that is before
* basenameOffset, as the start of the basename in cmdline - see
* Process_writeCommand */
if (command[i] == '/')
tokenStart = i + 1;
lastChar = i;
}
tokenEnd = length;
PCPProcess *pp = (PCPProcess *)process;
pp->mergedCommand.maxLen = lastChar + 1; /* accommodate cmdline */
if (!process->comm || !String_eq(command, process->comm)) {
process->basenameOffset = tokenEnd;
free_and_xStrdup(&process->comm, command);
pp->procCmdlineBasenameOffset = tokenStart;
pp->procCmdlineBasenameEnd = tokenEnd;
pp->mergedCommand.cmdlineChanged = true;
}
/* comm could change, so should be updated */
if ((length = strlen(comm)) > 0) {
pp->mergedCommand.maxLen += length;
if (!pp->procComm || !String_eq(command, pp->procComm)) {
free_and_xStrdup(&pp->procComm, command);
pp->mergedCommand.commChanged = true;
}
} else if (pp->procComm) {
free(pp->procComm);
pp->procComm = NULL;
pp->mergedCommand.commChanged = true;
}
free(value.cp);
}
static bool PCPProcessList_updateProcesses(PCPProcessList* this, double period, struct timeval* tv) {
ProcessList* pl = (ProcessList*) this;
const Settings* settings = pl->settings;
bool hideKernelThreads = settings->hideKernelThreads;
bool hideUserlandThreads = settings->hideUserlandThreads;
unsigned long long now = tv->tv_sec * 1000LL + tv->tv_usec / 1000LL;
int pid = -1, offset = -1;
/* for every process ... */
while (Metric_iterate(PCP_PROC_PID, &pid, &offset)) {
bool preExisting;
Process* proc = ProcessList_getProcess(pl, pid, &preExisting, PCPProcess_new);
PCPProcess* pp = (PCPProcess*) proc;
PCPProcessList_updateID(proc, pid, offset);
/*
* These conditions will not trigger on first occurrence, cause we need to
* add the process to the ProcessList and do all one time scans
* (e.g. parsing the cmdline to detect a kernel thread)
* But it will short-circuit subsequent scans.
*/
if (preExisting && hideKernelThreads && Process_isKernelThread(proc)) {
proc->updated = true;
proc->show = false;
if (proc->state == 'R')
pl->runningTasks++;
pl->kernelThreads++;
pl->totalTasks++;
continue;
}
if (preExisting && hideUserlandThreads && Process_isUserlandThread(proc)) {
proc->updated = true;
proc->show = false;
if (proc->state == 'R')
pl->runningTasks++;
pl->userlandThreads++;
pl->totalTasks++;
continue;
}
if (settings->flags & PROCESS_FLAG_IO)
PCPProcessList_updateIO(pp, pid, offset, now);
PCPProcessList_updateMemory(pp, pid, offset);
if ((settings->flags & PROCESS_FLAG_LINUX_SMAPS) &&
(Process_isKernelThread(proc) == false)) {
if (Metric_enabled(PCP_PROC_SMAPS_PSS))
PCPProcessList_updateSmaps(pp, pid, offset);
}
char command[MAX_NAME + 1];
unsigned int tty_nr = proc->tty_nr;
unsigned long long int lasttimes = pp->utime + pp->stime;
PCPProcessList_updateInfo(proc, pid, offset, command, sizeof(command));
proc->starttime_ctime += Platform_getBootTime();
if (tty_nr != proc->tty_nr)
PCPProcessList_updateTTY(pp, pid, offset);
float percent_cpu = (pp->utime + pp->stime - lasttimes) / period * 100.0;
proc->percent_cpu = isnan(percent_cpu) ?
0.0 : CLAMP(percent_cpu, 0.0, pl->cpuCount * 100.0);
proc->percent_mem = proc->m_resident / (double)pl->totalMem * 100.0;
if (!preExisting) {
PCPProcessList_updateUsername(proc, pid, offset, pl->usersTable);
PCPProcessList_updateCmdline(proc, pid, offset, command);
Process_fillStarttimeBuffer(proc);
ProcessList_add(pl, proc);
} else if (settings->updateProcessNames && proc->state != 'Z') {
PCPProcessList_updateCmdline(proc, pid, offset, command);
}
/* (Re)Generate the Command string, but only if the process is:
* - not a kernel thread, and
* - not a zombie or it became zombie under htop's watch, and
* - not a user thread or if showThreadNames is not set */
if (!Process_isKernelThread(proc) &&
(proc->state != 'Z' || pp->mergedCommand.str) &&
(!Process_isUserlandThread(proc) || !settings->showThreadNames)) {
PCPProcess_makeCommandStr(proc);
}
if (settings->flags & PROCESS_FLAG_LINUX_CGROUP)
PCPProcessList_readCGroups(pp, pid, offset);
if (settings->flags & PROCESS_FLAG_LINUX_OOM)
PCPProcessList_readOomData(pp, pid, offset);
if (settings->flags & PROCESS_FLAG_LINUX_CTXT)
PCPProcessList_readCtxtData(pp, pid, offset);
if (settings->flags & PROCESS_FLAG_LINUX_SECATTR)
PCPProcessList_readSecattrData(pp, pid, offset);
if (proc->state == 'Z' && proc->basenameOffset == 0) {
proc->basenameOffset = -1;
free_and_xStrdup(&proc->comm, command);
pp->procCmdlineBasenameOffset = 0;
pp->procCmdlineBasenameEnd = 0;
pp->mergedCommand.commChanged = true;
} else if (Process_isThread(proc)) {
if (settings->showThreadNames || Process_isKernelThread(proc)) {
proc->basenameOffset = -1;
free_and_xStrdup(&proc->comm, command);
pp->procCmdlineBasenameOffset = 0;
pp->procCmdlineBasenameEnd = 0;
pp->mergedCommand.commChanged = true;
}
if (Process_isKernelThread(proc)) {
pl->kernelThreads++;
} else {
pl->userlandThreads++;
}
}
/* Set at the end when we know if a new entry is a thread */
proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) ||
(hideUserlandThreads && Process_isUserlandThread(proc)));
//fprintf(stderr, "Updated PID %d [%s] show=%d user=%d[%d] kern=%d[%d]\n", pid, command, proc->show, Process_isUserlandThread(proc), hideUserlandThreads, Process_isKernelThread(proc), hideKernelThreads);
pl->totalTasks++;
if (proc->state == 'R')
pl->runningTasks++;
proc->updated = true;
}
//fprintf(stderr, "Total tasks %d, running=%d\n", pl->totalTasks, pl->runningTasks);
return true;
}
static void PCPProcessList_updateMemoryInfo(ProcessList* super) {
unsigned long long int freeMem = 0;
unsigned long long int swapFreeMem = 0;
unsigned long long int sreclaimableMem = 0;
super->totalMem = super->usedMem = super->cachedMem = 0;
super->usedSwap = super->totalSwap = 0;
pmAtomValue value;
if (Metric_values(PCP_MEM_TOTAL, &value, 1, PM_TYPE_U64) != NULL)
super->totalMem = value.ull;
if (Metric_values(PCP_MEM_FREE, &value, 1, PM_TYPE_U64) != NULL)
freeMem = value.ull;
if (Metric_values(PCP_MEM_BUFFERS, &value, 1, PM_TYPE_U64) != NULL)
super->buffersMem = value.ull;
if (Metric_values(PCP_MEM_SRECLAIM, &value, 1, PM_TYPE_U64) != NULL)
sreclaimableMem = value.ull;
if (Metric_values(PCP_MEM_CACHED, &value, 1, PM_TYPE_U64) != NULL) {
super->cachedMem = value.ull;
super->cachedMem += sreclaimableMem;
}
unsigned long long int usedDiff;
usedDiff = freeMem + super->cachedMem + super->buffersMem;
super->usedMem = (super->totalMem >= usedDiff) ?
super->totalMem - usedDiff : super->totalMem - freeMem;
if (Metric_values(PCP_MEM_AVAILABLE, &value, 1, PM_TYPE_U64) != NULL)
super->availableMem = MINIMUM(value.ull, super->totalMem);
else
super->availableMem = freeMem;
if (Metric_values(PCP_MEM_SWAPFREE, &value, 1, PM_TYPE_U64) != NULL)
swapFreeMem = value.ull;
if (Metric_values(PCP_MEM_SWAPTOTAL, &value, 1, PM_TYPE_U64) != NULL)
super->totalSwap = value.ull;
if (Metric_values(PCP_MEM_SWAPCACHED, &value, 1, PM_TYPE_U64) != NULL)
super->cachedSwap = value.ull;
super->usedSwap = super->totalSwap - swapFreeMem - super->cachedSwap;
}
/* make copies of previously sampled values to avoid overwrite */
static inline void PCPProcessList_backupCPUTime(pmAtomValue* values) {
/* the PERIOD fields (must) mirror the TIME fields */
for (int metric = CPU_TOTAL_TIME; metric < CPU_TOTAL_PERIOD; metric++) {
values[metric + CPU_TOTAL_PERIOD] = values[metric];
}
}
static inline void PCPProcessList_saveCPUTimePeriod(pmAtomValue* values, CPUMetric previous, pmAtomValue* latest) {
pmAtomValue *value;
/* new value for period */
value = &values[previous];
if (latest->ull > value->ull)
value->ull = latest->ull - value->ull;
else
value->ull = 0;
/* new value for time */
value = &values[previous - CPU_TOTAL_PERIOD];
value->ull = latest->ull;
}
/* using copied sampled values and new values, calculate derivations */
static void PCPProcessList_deriveCPUTime(pmAtomValue* values) {
pmAtomValue* usertime = &values[CPU_USER_TIME];
pmAtomValue* guesttime = &values[CPU_GUEST_TIME];
usertime->ull -= guesttime->ull;
pmAtomValue* nicetime = &values[CPU_NICE_TIME];
pmAtomValue* guestnicetime = &values[CPU_GUESTNICE_TIME];
nicetime->ull -= guestnicetime->ull;
pmAtomValue* idletime = &values[CPU_IDLE_TIME];
pmAtomValue* iowaittime = &values[CPU_IOWAIT_TIME];
pmAtomValue* idlealltime = &values[CPU_IDLE_ALL_TIME];
idlealltime->ull = idletime->ull + iowaittime->ull;
pmAtomValue* systemtime = &values[CPU_SYSTEM_TIME];
pmAtomValue* irqtime = &values[CPU_IRQ_TIME];
pmAtomValue* softirqtime = &values[CPU_SOFTIRQ_TIME];
pmAtomValue* systalltime = &values[CPU_SYSTEM_ALL_TIME];
systalltime->ull = systemtime->ull + irqtime->ull + softirqtime->ull;
pmAtomValue* virtalltime = &values[CPU_GUEST_TIME];
virtalltime->ull = guesttime->ull + guestnicetime->ull;
pmAtomValue* stealtime = &values[CPU_STEAL_TIME];
pmAtomValue* totaltime = &values[CPU_TOTAL_TIME];
totaltime->ull = usertime->ull + nicetime->ull + systalltime->ull +
idlealltime->ull + stealtime->ull + virtalltime->ull;
PCPProcessList_saveCPUTimePeriod(values, CPU_USER_PERIOD, usertime);
PCPProcessList_saveCPUTimePeriod(values, CPU_NICE_PERIOD, nicetime);
PCPProcessList_saveCPUTimePeriod(values, CPU_SYSTEM_PERIOD, systemtime);
PCPProcessList_saveCPUTimePeriod(values, CPU_SYSTEM_ALL_PERIOD, systalltime);
PCPProcessList_saveCPUTimePeriod(values, CPU_IDLE_ALL_PERIOD, idlealltime);
PCPProcessList_saveCPUTimePeriod(values, CPU_IDLE_PERIOD, idletime);
PCPProcessList_saveCPUTimePeriod(values, CPU_IOWAIT_PERIOD, iowaittime);
PCPProcessList_saveCPUTimePeriod(values, CPU_IRQ_PERIOD, irqtime);
PCPProcessList_saveCPUTimePeriod(values, CPU_SOFTIRQ_PERIOD, softirqtime);
PCPProcessList_saveCPUTimePeriod(values, CPU_STEAL_PERIOD, stealtime);
PCPProcessList_saveCPUTimePeriod(values, CPU_GUEST_PERIOD, virtalltime);
PCPProcessList_saveCPUTimePeriod(values, CPU_TOTAL_PERIOD, totaltime);
}
static void PCPProcessList_updateAllCPUTime(PCPProcessList* this, Metric metric, CPUMetric cpumetric)
{
pmAtomValue* value = &this->cpu[cpumetric];
if (Metric_values(metric, value, 1, PM_TYPE_U64) == NULL)
memset(&value, 0, sizeof(pmAtomValue));
}
static void PCPProcessList_updatePerCPUTime(PCPProcessList* this, Metric metric, CPUMetric cpumetric)
{
int cpus = this->super.cpuCount;
if (Metric_values(metric, this->values, cpus, PM_TYPE_U64) == NULL)
memset(this->values, 0, cpus * sizeof(pmAtomValue));
for (int i = 0; i < cpus; i++)
this->percpu[i][cpumetric].ull = this->values[i].ull;
}
static void PCPProcessList_updatePerCPUReal(PCPProcessList* this, Metric metric, CPUMetric cpumetric)
{
int cpus = this->super.cpuCount;
if (Metric_values(metric, this->values, cpus, PM_TYPE_DOUBLE) == NULL)
memset(this->values, 0, cpus * sizeof(pmAtomValue));
for (int i = 0; i < cpus; i++)
this->percpu[i][cpumetric].d = this->values[i].d;
}
static void PCPProcessList_updateHeader(ProcessList* super, const Settings* settings) {
PCPProcessList_updateMemoryInfo(super);
PCPProcessList* this = (PCPProcessList*) super;
PCPProcessList_updateCPUcount(this);
PCPProcessList_backupCPUTime(this->cpu);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_USER, CPU_USER_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_NICE, CPU_NICE_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_SYSTEM, CPU_SYSTEM_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_IDLE, CPU_IDLE_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_IOWAIT, CPU_IOWAIT_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_IRQ, CPU_IRQ_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_SOFTIRQ, CPU_SOFTIRQ_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_STEAL, CPU_STEAL_TIME);
PCPProcessList_updateAllCPUTime(this, PCP_CPU_GUEST, CPU_GUEST_TIME);
PCPProcessList_deriveCPUTime(this->cpu);
for (int i = 0; i < super->cpuCount; i++)
PCPProcessList_backupCPUTime(this->percpu[i]);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_USER, CPU_USER_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_NICE, CPU_NICE_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_SYSTEM, CPU_SYSTEM_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_IDLE, CPU_IDLE_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_IOWAIT, CPU_IOWAIT_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_IRQ, CPU_IRQ_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_SOFTIRQ, CPU_SOFTIRQ_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_STEAL, CPU_STEAL_TIME);
PCPProcessList_updatePerCPUTime(this, PCP_PERCPU_GUEST, CPU_GUEST_TIME);
for (int i = 0; i < super->cpuCount; i++)
PCPProcessList_deriveCPUTime(this->percpu[i]);
if (settings->showCPUFrequency)
PCPProcessList_updatePerCPUReal(this, PCP_HINV_CPUCLOCK, CPU_FREQUENCY);
}
void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
PCPProcessList* this = (PCPProcessList*) super;
const Settings* settings = super->settings;
bool enabled = !pauseProcessUpdate;
bool flagged = settings->showCPUFrequency;
Metric_enable(PCP_HINV_CPUCLOCK, flagged);
/* In pause mode do not sample per-process metric values at all */
for (int metric = PCP_PROC_PID; metric < PCP_METRIC_COUNT; metric++)
Metric_enable(metric, enabled);
flagged = settings->flags & PROCESS_FLAG_LINUX_CGROUP;
Metric_enable(PCP_PROC_CGROUPS, flagged && enabled);
flagged = settings->flags & PROCESS_FLAG_LINUX_OOM;
Metric_enable(PCP_PROC_OOMSCORE, flagged && enabled);
flagged = settings->flags & PROCESS_FLAG_LINUX_CTXT;
Metric_enable(PCP_PROC_VCTXSW, flagged && enabled);
Metric_enable(PCP_PROC_NVCTXSW, flagged && enabled);
flagged = settings->flags & PROCESS_FLAG_LINUX_SECATTR;
Metric_enable(PCP_PROC_LABELS, flagged && enabled);
/* Sample smaps metrics on every second pass to improve performance */
static int smaps_flag;
smaps_flag = !!smaps_flag;
Metric_enable(PCP_PROC_SMAPS_PSS, smaps_flag && enabled);
Metric_enable(PCP_PROC_SMAPS_SWAP, smaps_flag && enabled);
Metric_enable(PCP_PROC_SMAPS_SWAPPSS, smaps_flag && enabled);
struct timeval timestamp;
Metric_fetch(&timestamp);
double sample = this->timestamp;
this->timestamp = pmtimevalToReal(&timestamp);
PCPProcessList_updateHeader(super, settings);
/* In pause mode only update global data for meters (CPU, memory, etc) */
if (pauseProcessUpdate)
return;
double period = (this->timestamp - sample) * 100;
PCPProcessList_updateProcesses(this, period, &timestamp);
}