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htop/pcp/PCPProcessList.c

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/*
htop - PCPProcessList.c
(C) 2014 Hisham H. Muhammad
(C) 2020-2021 htop dev team
(C) 2020-2021 Red Hat, Inc.
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "pcp/PCPProcessList.h"
#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "Macros.h"
#include "Object.h"
#include "Platform.h"
#include "Process.h"
#include "Settings.h"
#include "XUtils.h"
#include "pcp/PCPMetric.h"
#include "pcp/PCPProcess.h"
static void PCPProcessList_updateCPUcount(PCPProcessList* this) {
ProcessList* pl = &(this->super);
pl->activeCPUs = PCPMetric_instanceCount(PCP_PERCPU_SYSTEM);
unsigned int cpus = Platform_getMaxCPU();
if (cpus == pl->existingCPUs)
return;
if (cpus == 0)
cpus = pl->activeCPUs;
if (cpus <= 1)
cpus = pl->activeCPUs = 1;
pl->existingCPUs = cpus;
free(this->percpu);
free(this->values);
this->percpu = xCalloc(cpus, sizeof(pmAtomValue *));
for (unsigned 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 (PCPMetric_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* dynamicMeters, Hashtable* dynamicColumns, Hashtable* pidMatchList, uid_t userId) {
PCPProcessList* this = xCalloc(1, sizeof(PCPProcessList));
ProcessList* super = &(this->super);
ProcessList_init(super, Class(PCPProcess), usersTable, dynamicMeters, dynamicColumns, 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 (unsigned int i = 0; i < pl->existingCPUs; i++)
free(this->percpu[i]);
free(this->percpu);
free(this->cpu);
free(this);
}
static inline long Metric_instance_s32(int metric, int pid, int offset, long fallback) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_32))
return value.l;
return fallback;
}
static inline long long Metric_instance_s64(int metric, int pid, int offset, long long fallback) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_64))
return value.l;
return fallback;
}
static inline unsigned long Metric_instance_u32(int metric, int pid, int offset, unsigned long fallback) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_U32))
return value.ul;
return fallback;
}
static inline unsigned long long Metric_instance_u64(int metric, int pid, int offset, unsigned long long fallback) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_U64))
return value.ull;
return fallback;
}
static inline unsigned long long Metric_instance_time(int metric, int pid, int offset) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_U64))
return value.ull / 10;
return 0;
}
static inline unsigned long long Metric_instance_ONE_K(int metric, int pid, int offset) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_U64))
return value.ull / ONE_K;
return ULLONG_MAX;
}
static inline char Metric_instance_char(int metric, int pid, int offset, char fallback) {
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_STRING)) {
char uchar = value.cp[0];
free(value.cp);
return uchar;
}
return fallback;
}
static inline ProcessState PCPProcessList_getProcessState(char state) {
switch (state) {
case '?': return UNKNOWN;
case 'R': return RUNNING;
case 'W': return WAITING;
case 'D': return UNINTERRUPTIBLE_WAIT;
case 'P': return PAGING;
case 'T': return STOPPED;
case 't': return TRACED;
case 'Z': return ZOMBIE;
case 'X': return DEFUNCT;
case 'I': return IDLE;
case 'S': return SLEEPING;
default: return UNKNOWN;
}
}
static void PCPProcessList_updateID(Process* process, int pid, int offset) {
process->tgid = Metric_instance_u32(PCP_PROC_TGID, pid, offset, 1);
process->ppid = Metric_instance_u32(PCP_PROC_PPID, pid, offset, 1);
process->state = PCPProcessList_getProcessState(Metric_instance_char(PCP_PROC_STATE, pid, offset, '?'));
}
static void PCPProcessList_updateInfo(Process* process, int pid, int offset, char* command, size_t commLen) {
PCPProcess* pp = (PCPProcess*) process;
pmAtomValue value;
if (!PCPMetric_instance(PCP_PROC_CMD, pid, offset, &value, PM_TYPE_STRING))
value.cp = xStrdup("<unknown>");
String_safeStrncpy(command, value.cp, commLen);
free(value.cp);
process->pgrp = Metric_instance_u32(PCP_PROC_PGRP, pid, offset, 0);
process->session = Metric_instance_u32(PCP_PROC_SESSION, pid, offset, 0);
process->tty_nr = Metric_instance_u32(PCP_PROC_TTY, pid, offset, 0);
process->tpgid = Metric_instance_u32(PCP_PROC_TTYPGRP, pid, offset, 0);
process->minflt = Metric_instance_u32(PCP_PROC_MINFLT, pid, offset, 0);
pp->cminflt = Metric_instance_u32(PCP_PROC_CMINFLT, pid, offset, 0);
process->majflt = Metric_instance_u32(PCP_PROC_MAJFLT, pid, offset, 0);
pp->cmajflt = Metric_instance_u32(PCP_PROC_CMAJFLT, pid, offset, 0);
pp->utime = Metric_instance_time(PCP_PROC_UTIME, pid, offset);
pp->stime = Metric_instance_time(PCP_PROC_STIME, pid, offset);
pp->cutime = Metric_instance_time(PCP_PROC_CUTIME, pid, offset);
pp->cstime = Metric_instance_time(PCP_PROC_CSTIME, pid, offset);
process->priority = Metric_instance_u32(PCP_PROC_PRIORITY, pid, offset, 0);
process->nice = Metric_instance_s32(PCP_PROC_NICE, pid, offset, 0);
process->nlwp = Metric_instance_u32(PCP_PROC_THREADS, pid, offset, 0);
process->starttime_ctime = Metric_instance_time(PCP_PROC_STARTTIME, pid, offset);
process->processor = Metric_instance_u32(PCP_PROC_PROCESSOR, pid, offset, 0);
process->time = pp->utime + pp->stime;
}
static void PCPProcessList_updateIO(PCPProcess* pp, int pid, int offset, unsigned long long now) {
pmAtomValue value;
pp->io_rchar = Metric_instance_ONE_K(PCP_PROC_IO_RCHAR, pid, offset);
pp->io_wchar = Metric_instance_ONE_K(PCP_PROC_IO_WCHAR, pid, offset);
pp->io_syscr = Metric_instance_u64(PCP_PROC_IO_SYSCR, pid, offset, ULLONG_MAX);
pp->io_syscw = Metric_instance_u64(PCP_PROC_IO_SYSCW, pid, offset, ULLONG_MAX);
pp->io_cancelled_write_bytes = Metric_instance_ONE_K(PCP_PROC_IO_CANCELLED, pid, offset);
if (PCPMetric_instance(PCP_PROC_IO_READB, pid, offset, &value, PM_TYPE_U64)) {
unsigned long long last_read = pp->io_read_bytes;
pp->io_read_bytes = value.ull / ONE_K;
pp->io_rate_read_bps = ONE_K * (pp->io_read_bytes - last_read) /
(now - pp->io_last_scan_time);
} else {
pp->io_read_bytes = ULLONG_MAX;
pp->io_rate_read_bps = NAN;
}
if (PCPMetric_instance(PCP_PROC_IO_WRITEB, pid, offset, &value, PM_TYPE_U64)) {
unsigned long long last_write = pp->io_write_bytes;
pp->io_write_bytes = value.ull;
pp->io_rate_write_bps = ONE_K * (pp->io_write_bytes - last_write) /
(now - pp->io_last_scan_time);
} else {
pp->io_write_bytes = ULLONG_MAX;
pp->io_rate_write_bps = NAN;
}
pp->io_last_scan_time = now;
}
static void PCPProcessList_updateMemory(PCPProcess* pp, int pid, int offset) {
pp->super.m_virt = Metric_instance_u32(PCP_PROC_MEM_SIZE, pid, offset, 0);
pp->super.m_resident = Metric_instance_u32(PCP_PROC_MEM_RSS, pid, offset, 0);
pp->m_share = Metric_instance_u32(PCP_PROC_MEM_SHARE, pid, offset, 0);
pp->m_trs = Metric_instance_u32(PCP_PROC_MEM_TEXTRS, pid, offset, 0);
pp->m_lrs = Metric_instance_u32(PCP_PROC_MEM_LIBRS, pid, offset, 0);
pp->m_drs = Metric_instance_u32(PCP_PROC_MEM_DATRS, pid, offset, 0);
pp->m_dt = Metric_instance_u32(PCP_PROC_MEM_DIRTY, pid, offset, 0);
}
static void PCPProcessList_updateSmaps(PCPProcess* pp, pid_t pid, int offset) {
pp->m_pss = Metric_instance_u64(PCP_PROC_SMAPS_PSS, pid, offset, 0);
pp->m_swap = Metric_instance_u64(PCP_PROC_SMAPS_SWAP, pid, offset, 0);
pp->m_psswp = Metric_instance_u64(PCP_PROC_SMAPS_SWAPPSS, pid, offset, 0);
}
static void PCPProcessList_readOomData(PCPProcess* pp, int pid, int offset) {
pp->oom = Metric_instance_u32(PCP_PROC_OOMSCORE, pid, offset, 0);
}
static void PCPProcessList_readAutogroup(PCPProcess* pp, int pid, int offset) {
pp->autogroup_id = Metric_instance_s64(PCP_PROC_AUTOGROUP_ID, pid, offset, -1);
pp->autogroup_nice = Metric_instance_s32(PCP_PROC_AUTOGROUP_NICE, pid, offset, 0);
}
static void PCPProcessList_readCtxtData(PCPProcess* pp, int pid, int offset) {
pmAtomValue value;
unsigned long ctxt = 0;
if (PCPMetric_instance(PCP_PROC_VCTXSW, pid, offset, &value, PM_TYPE_U32))
ctxt += value.ul;
if (PCPMetric_instance(PCP_PROC_NVCTXSW, pid, offset, &value, PM_TYPE_U32))
ctxt += value.ul;
pp->ctxt_diff = ctxt > pp->ctxt_total ? ctxt - pp->ctxt_total : 0;
pp->ctxt_total = ctxt;
}
static char* setString(PCPMetric metric, int pid, int offset, char* string) {
if (string)
free(string);
pmAtomValue value;
if (PCPMetric_instance(metric, pid, offset, &value, PM_TYPE_STRING))
string = value.cp;
else
string = NULL;
return string;
}
static void PCPProcessList_updateTTY(Process* process, int pid, int offset) {
process->tty_name = setString(PCP_PROC_TTYNAME, pid, offset, process->tty_name);
}
static void PCPProcessList_readCGroups(PCPProcess* pp, int pid, int offset) {
pp->cgroup = setString(PCP_PROC_CGROUPS, pid, offset, pp->cgroup);
}
static void PCPProcessList_readSecattrData(PCPProcess* pp, int pid, int offset) {
pp->secattr = setString(PCP_PROC_LABELS, pid, offset, pp->secattr);
}
static void PCPProcessList_readCwd(PCPProcess* pp, int pid, int offset) {
pp->super.procCwd = setString(PCP_PROC_CWD, pid, offset, pp->super.procCwd);
}
static void PCPProcessList_updateUsername(Process* process, int pid, int offset, UsersTable* users) {
process->st_uid = Metric_instance_u32(PCP_PROC_ID_UID, pid, offset, 0);
process->user = setUser(users, process->st_uid, pid, offset);
}
static void PCPProcessList_updateCmdline(Process* process, int pid, int offset, const char* comm) {
pmAtomValue value;
if (!PCPMetric_instance(PCP_PROC_PSARGS, pid, offset, &value, PM_TYPE_STRING)) {
if (process->state != ZOMBIE)
process->isKernelThread = true;
Process_updateCmdline(process, NULL, 0, 0);
return;
}
char* command = value.cp;
int length = strlen(command);
if (command[0] != '(') {
process->isKernelThread = false;
} else {
++command;
--length;
if (command[length - 1] == ')')
command[--length] = '\0';
process->isKernelThread = true;
}
int tokenStart = 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;
}
int tokenEnd = length;
Process_updateCmdline(process, command, tokenStart, tokenEnd);
free(value.cp);
Process_updateComm(process, comm);
if (PCPMetric_instance(PCP_PROC_EXE, pid, offset, &value, PM_TYPE_STRING)) {
Process_updateExe(process, value.cp[0] ? value.cp : NULL);
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 (PCPMetric_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);
proc->isUserlandThread = proc->pid != proc->tgid;
pp->offset = offset >= 0 ? offset : 0;
/*
* 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 == RUNNING)
pl->runningTasks++;
pl->kernelThreads++;
pl->totalTasks++;
continue;
}
if (preExisting && hideUserlandThreads && Process_isUserlandThread(proc)) {
proc->updated = true;
proc->show = false;
if (proc->state == RUNNING)
pl->runningTasks++;
pl->userlandThreads++;
pl->totalTasks++;
continue;
}
if (settings->ss->flags & PROCESS_FLAG_IO)
PCPProcessList_updateIO(pp, pid, offset, now);
PCPProcessList_updateMemory(pp, pid, offset);
if ((settings->ss->flags & PROCESS_FLAG_LINUX_SMAPS) &&
(Process_isKernelThread(proc) == false)) {
if (PCPMetric_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(proc, 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->activeCPUs * 100.0);
proc->percent_mem = proc->m_resident / (double)pl->totalMem * 100.0;
Process_updateCPUFieldWidths(proc->percent_cpu);
PCPProcessList_updateUsername(proc, pid, offset, pl->usersTable);
if (!preExisting) {
PCPProcessList_updateCmdline(proc, pid, offset, command);
Process_fillStarttimeBuffer(proc);
ProcessList_add(pl, proc);
} else if (settings->updateProcessNames && proc->state != ZOMBIE) {
PCPProcessList_updateCmdline(proc, pid, offset, command);
}
if (settings->ss->flags & PROCESS_FLAG_LINUX_CGROUP)
PCPProcessList_readCGroups(pp, pid, offset);
if (settings->ss->flags & PROCESS_FLAG_LINUX_OOM)
PCPProcessList_readOomData(pp, pid, offset);
if (settings->ss->flags & PROCESS_FLAG_LINUX_CTXT)
PCPProcessList_readCtxtData(pp, pid, offset);
if (settings->ss->flags & PROCESS_FLAG_LINUX_SECATTR)
PCPProcessList_readSecattrData(pp, pid, offset);
if (settings->ss->flags & PROCESS_FLAG_CWD)
PCPProcessList_readCwd(pp, pid, offset);
if (settings->ss->flags & PROCESS_FLAG_LINUX_AUTOGROUP)
PCPProcessList_readAutogroup(pp, pid, offset);
if (proc->state == ZOMBIE && !proc->cmdline && command[0]) {
Process_updateCmdline(proc, command, 0, strlen(command));
} else if (Process_isThread(proc)) {
if ((settings->showThreadNames || Process_isKernelThread(proc)) && command[0]) {
Process_updateCmdline(proc, command, 0, strlen(command));
}
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)));
pl->totalTasks++;
if (proc->state == RUNNING)
pl->runningTasks++;
proc->updated = true;
}
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 = super->sharedMem = 0;
pmAtomValue value;
if (PCPMetric_values(PCP_MEM_TOTAL, &value, 1, PM_TYPE_U64) != NULL)
super->totalMem = value.ull;
if (PCPMetric_values(PCP_MEM_FREE, &value, 1, PM_TYPE_U64) != NULL)
freeMem = value.ull;
if (PCPMetric_values(PCP_MEM_BUFFERS, &value, 1, PM_TYPE_U64) != NULL)
super->buffersMem = value.ull;
if (PCPMetric_values(PCP_MEM_SRECLAIM, &value, 1, PM_TYPE_U64) != NULL)
sreclaimableMem = value.ull;
if (PCPMetric_values(PCP_MEM_SHARED, &value, 1, PM_TYPE_U64) != NULL)
super->sharedMem = value.ull;
if (PCPMetric_values(PCP_MEM_CACHED, &value, 1, PM_TYPE_U64) != NULL)
super->cachedMem = value.ull + sreclaimableMem - super->sharedMem;
const memory_t usedDiff = freeMem + super->cachedMem + sreclaimableMem + super->buffersMem;
super->usedMem = (super->totalMem >= usedDiff) ?
super->totalMem - usedDiff : super->totalMem - freeMem;
if (PCPMetric_values(PCP_MEM_AVAILABLE, &value, 1, PM_TYPE_U64) != NULL)
super->availableMem = MINIMUM(value.ull, super->totalMem);
else
super->availableMem = freeMem;
if (PCPMetric_values(PCP_MEM_SWAPFREE, &value, 1, PM_TYPE_U64) != NULL)
swapFreeMem = value.ull;
if (PCPMetric_values(PCP_MEM_SWAPTOTAL, &value, 1, PM_TYPE_U64) != NULL)
super->totalSwap = value.ull;
if (PCPMetric_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, PCPMetric metric, CPUMetric cpumetric)
{
pmAtomValue* value = &this->cpu[cpumetric];
if (PCPMetric_values(metric, value, 1, PM_TYPE_U64) == NULL)
memset(&value, 0, sizeof(pmAtomValue));
}
static void PCPProcessList_updatePerCPUTime(PCPProcessList* this, PCPMetric metric, CPUMetric cpumetric)
{
int cpus = this->super.existingCPUs;
if (PCPMetric_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, PCPMetric metric, CPUMetric cpumetric)
{
int cpus = this->super.existingCPUs;
if (PCPMetric_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 inline void PCPProcessList_scanZfsArcstats(PCPProcessList* this) {
unsigned long long int dbufSize = 0;
unsigned long long int dnodeSize = 0;
unsigned long long int bonusSize = 0;
pmAtomValue value;
memset(&this->zfs, 0, sizeof(ZfsArcStats));
if (PCPMetric_values(PCP_ZFS_ARC_ANON_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.anon = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_C_MIN, &value, 1, PM_TYPE_U64))
this->zfs.min = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_C_MAX, &value, 1, PM_TYPE_U64))
this->zfs.max = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_BONUS_SIZE, &value, 1, PM_TYPE_U64))
bonusSize = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_DBUF_SIZE, &value, 1, PM_TYPE_U64))
dbufSize = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_DNODE_SIZE, &value, 1, PM_TYPE_U64))
dnodeSize = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_COMPRESSED_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.compressed = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_UNCOMPRESSED_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.uncompressed = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_HDR_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.header = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_MFU_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.MFU = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_MRU_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.MRU = value.ull / ONE_K;
if (PCPMetric_values(PCP_ZFS_ARC_SIZE, &value, 1, PM_TYPE_U64))
this->zfs.size = value.ull / ONE_K;
this->zfs.other = (dbufSize + dnodeSize + bonusSize) / ONE_K;
this->zfs.enabled = (this->zfs.size > 0);
this->zfs.isCompressed = (this->zfs.compressed > 0);
}
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 (unsigned int i = 0; i < super->existingCPUs; 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 (unsigned int i = 0; i < super->existingCPUs; i++)
PCPProcessList_deriveCPUTime(this->percpu[i]);
if (settings->showCPUFrequency)
PCPProcessList_updatePerCPUReal(this, PCP_HINV_CPUCLOCK, CPU_FREQUENCY);
PCPProcessList_scanZfsArcstats(this);
}
void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
PCPProcessList* this = (PCPProcessList*) super;
const Settings* settings = super->settings;
bool enabled = !pauseProcessUpdate;
bool flagged = settings->showCPUFrequency;
PCPMetric_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++)
PCPMetric_enable(metric, enabled);
flagged = settings->ss->flags & PROCESS_FLAG_LINUX_CGROUP;
PCPMetric_enable(PCP_PROC_CGROUPS, flagged && enabled);
flagged = settings->ss->flags & PROCESS_FLAG_LINUX_OOM;
PCPMetric_enable(PCP_PROC_OOMSCORE, flagged && enabled);
flagged = settings->ss->flags & PROCESS_FLAG_LINUX_CTXT;
PCPMetric_enable(PCP_PROC_VCTXSW, flagged && enabled);
PCPMetric_enable(PCP_PROC_NVCTXSW, flagged && enabled);
flagged = settings->ss->flags & PROCESS_FLAG_LINUX_SECATTR;
PCPMetric_enable(PCP_PROC_LABELS, flagged && enabled);
flagged = settings->ss->flags & PROCESS_FLAG_LINUX_AUTOGROUP;
PCPMetric_enable(PCP_PROC_AUTOGROUP_ID, flagged && enabled);
PCPMetric_enable(PCP_PROC_AUTOGROUP_NICE, flagged && enabled);
/* Sample smaps metrics on every second pass to improve performance */
static int smaps_flag;
smaps_flag = !!smaps_flag;
PCPMetric_enable(PCP_PROC_SMAPS_PSS, smaps_flag && enabled);
PCPMetric_enable(PCP_PROC_SMAPS_SWAP, smaps_flag && enabled);
PCPMetric_enable(PCP_PROC_SMAPS_SWAPPSS, smaps_flag && enabled);
struct timeval timestamp;
if (PCPMetric_fetch(&timestamp) != true)
return;
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);
}
bool ProcessList_isCPUonline(const ProcessList* super, unsigned int id) {
assert(id < super->existingCPUs);
(void) super;
pmAtomValue value;
if (PCPMetric_instance(PCP_PERCPU_SYSTEM, id, id, &value, PM_TYPE_U32))
return true;
return false;
}
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