diff options
Diffstat (limited to 'pcp/PCPProcessList.c')
| -rw-r--r-- | pcp/PCPProcessList.c | 706 |
1 files changed, 706 insertions, 0 deletions
diff --git a/pcp/PCPProcessList.c b/pcp/PCPProcessList.c new file mode 100644 index 0000000..b55b5a4 --- /dev/null +++ b/pcp/PCPProcessList.c @@ -0,0 +1,706 @@ +/* +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(×tamp, NULL); + this->timestamp = pmtimevalToReal(×tamp); + + 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 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 = 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 != 'Z') + 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 == '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 (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; + + 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 != 'Z') { + PCPProcessList_updateCmdline(proc, pid, offset, command); + } + + 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 (settings->flags & PROCESS_FLAG_CWD) + PCPProcessList_readCwd(pp, pid, offset); + + if (settings->flags & PROCESS_FLAG_LINUX_AUTOGROUP) + PCPProcessList_readAutogroup(pp, pid, offset); + + if (proc->state == 'Z' && !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 == 'R') + 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_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->flags & PROCESS_FLAG_LINUX_CGROUP; + PCPMetric_enable(PCP_PROC_CGROUPS, flagged && enabled); + flagged = settings->flags & PROCESS_FLAG_LINUX_OOM; + PCPMetric_enable(PCP_PROC_OOMSCORE, flagged && enabled); + flagged = settings->flags & PROCESS_FLAG_LINUX_CTXT; + PCPMetric_enable(PCP_PROC_VCTXSW, flagged && enabled); + PCPMetric_enable(PCP_PROC_NVCTXSW, flagged && enabled); + flagged = settings->flags & PROCESS_FLAG_LINUX_SECATTR; + PCPMetric_enable(PCP_PROC_LABELS, flagged && enabled); + flagged = settings->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; + PCPMetric_fetch(×tamp); + + double sample = this->timestamp; + this->timestamp = pmtimevalToReal(×tamp); + + 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, ×tamp); +} + +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; +} |