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htop/pcp/Platform.c

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/*
htop - linux/Platform.c
(C) 2014 Hisham H. Muhammad
(C) 2020-2021 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 "pcp/Platform.h"
#include <math.h>
#include "BatteryMeter.h"
#include "ClockMeter.h"
#include "Compat.h"
#include "CPUMeter.h"
#include "DateMeter.h"
#include "DateTimeMeter.h"
#include "DiskIOMeter.h"
#include "HostnameMeter.h"
#include "LoadAverageMeter.h"
#include "Macros.h"
#include "MainPanel.h"
#include "MemoryMeter.h"
#include "Meter.h"
#include "NetworkIOMeter.h"
#include "Object.h"
#include "Panel.h"
#include "ProcessList.h"
#include "ProvideCurses.h"
#include "Settings.h"
#include "SwapMeter.h"
#include "SysArchMeter.h"
#include "TasksMeter.h"
#include "UptimeMeter.h"
#include "XUtils.h"
#include "linux/PressureStallMeter.h"
#include "linux/ZramMeter.h"
#include "linux/ZramStats.h"
#include "pcp/PCPProcess.h"
#include "pcp/PCPProcessList.h"
#include "zfs/ZfsArcMeter.h"
#include "zfs/ZfsArcStats.h"
#include "zfs/ZfsCompressedArcMeter.h"
typedef struct Platform_ {
int context; /* PMAPI(3) context identifier */
unsigned int total; /* total number of all metrics */
const char** names; /* name array indexed by Metric */
pmID* pmids; /* all known metric identifiers */
pmID* fetch; /* enabled identifiers for sampling */
pmDesc* descs; /* metric desc array indexed by Metric */
pmResult* result; /* sample values result indexed by Metric */
struct timeval offset; /* time offset used in archive mode only */
long long btime; /* boottime in seconds since the epoch */
char* release; /* uname and distro from this context */
int pidmax; /* maximum platform process identifier */
int ncpu; /* maximum processor count configured */
} Platform;
Platform* pcp;
ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_VIRT, M_RESIDENT, (int)M_SHARE, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
int Platform_numberOfFields = LAST_PROCESSFIELD;
const SignalItem Platform_signals[] = {
{ .name = " 0 Cancel", .number = 0 },
};
const unsigned int Platform_numberOfSignals = ARRAYSIZE(Platform_signals);
const MeterClass* const Platform_meterTypes[] = {
&CPUMeter_class,
&ClockMeter_class,
&DateMeter_class,
&DateTimeMeter_class,
&LoadAverageMeter_class,
&LoadMeter_class,
&MemoryMeter_class,
&SwapMeter_class,
&TasksMeter_class,
&UptimeMeter_class,
&BatteryMeter_class,
&HostnameMeter_class,
&AllCPUsMeter_class,
&AllCPUs2Meter_class,
&AllCPUs4Meter_class,
&AllCPUs8Meter_class,
&LeftCPUsMeter_class,
&RightCPUsMeter_class,
&LeftCPUs2Meter_class,
&RightCPUs2Meter_class,
&LeftCPUs4Meter_class,
&RightCPUs4Meter_class,
&LeftCPUs8Meter_class,
&RightCPUs8Meter_class,
&BlankMeter_class,
&PressureStallCPUSomeMeter_class,
&PressureStallIOSomeMeter_class,
&PressureStallIOFullMeter_class,
&PressureStallMemorySomeMeter_class,
&PressureStallMemoryFullMeter_class,
&ZfsArcMeter_class,
&ZfsCompressedArcMeter_class,
&ZramMeter_class,
&DiskIOMeter_class,
&NetworkIOMeter_class,
&SysArchMeter_class,
NULL
};
static const char *Platform_metricNames[] = {
[PCP_CONTROL_THREADS] = "proc.control.perclient.threads",
[PCP_HINV_NCPU] = "hinv.ncpu",
[PCP_HINV_CPUCLOCK] = "hinv.cpu.clock",
[PCP_UNAME_SYSNAME] = "kernel.uname.sysname",
[PCP_UNAME_RELEASE] = "kernel.uname.release",
[PCP_UNAME_MACHINE] = "kernel.uname.machine",
[PCP_UNAME_DISTRO] = "kernel.uname.distro",
[PCP_LOAD_AVERAGE] = "kernel.all.load",
[PCP_PID_MAX] = "kernel.all.pid_max",
[PCP_UPTIME] = "kernel.all.uptime",
[PCP_BOOTTIME] = "kernel.all.boottime",
[PCP_CPU_USER] = "kernel.all.cpu.user",
[PCP_CPU_NICE] = "kernel.all.cpu.nice",
[PCP_CPU_SYSTEM] = "kernel.all.cpu.sys",
[PCP_CPU_IDLE] = "kernel.all.cpu.idle",
[PCP_CPU_IOWAIT] = "kernel.all.cpu.wait.total",
[PCP_CPU_IRQ] = "kernel.all.cpu.intr",
[PCP_CPU_SOFTIRQ] = "kernel.all.cpu.irq.soft",
[PCP_CPU_STEAL] = "kernel.all.cpu.steal",
[PCP_CPU_GUEST] = "kernel.all.cpu.guest",
[PCP_CPU_GUESTNICE] = "kernel.all.cpu.guest_nice",
[PCP_PERCPU_USER] = "kernel.percpu.cpu.user",
[PCP_PERCPU_NICE] = "kernel.percpu.cpu.nice",
[PCP_PERCPU_SYSTEM] = "kernel.percpu.cpu.sys",
[PCP_PERCPU_IDLE] = "kernel.percpu.cpu.idle",
[PCP_PERCPU_IOWAIT] = "kernel.percpu.cpu.wait.total",
[PCP_PERCPU_IRQ] = "kernel.percpu.cpu.intr",
[PCP_PERCPU_SOFTIRQ] = "kernel.percpu.cpu.irq.soft",
[PCP_PERCPU_STEAL] = "kernel.percpu.cpu.steal",
[PCP_PERCPU_GUEST] = "kernel.percpu.cpu.guest",
[PCP_PERCPU_GUESTNICE] = "kernel.percpu.cpu.guest_nice",
[PCP_MEM_TOTAL] = "mem.physmem",
[PCP_MEM_FREE] = "mem.util.free",
[PCP_MEM_AVAILABLE] = "mem.util.available",
[PCP_MEM_BUFFERS] = "mem.util.bufmem",
[PCP_MEM_CACHED] = "mem.util.cached",
[PCP_MEM_SHARED] = "mem.util.shared",
[PCP_MEM_SRECLAIM] = "mem.util.slabReclaimable",
[PCP_MEM_SWAPCACHED] = "mem.util.swapCached",
[PCP_MEM_SWAPTOTAL] = "mem.util.swapTotal",
[PCP_MEM_SWAPFREE] = "mem.util.swapFree",
[PCP_DISK_READB] = "disk.all.read_bytes",
[PCP_DISK_WRITEB] = "disk.all.write_bytes",
[PCP_DISK_ACTIVE] = "disk.all.avactive",
[PCP_NET_RECVB] = "network.all.in.bytes",
[PCP_NET_SENDB] = "network.all.out.bytes",
[PCP_NET_RECVP] = "network.all.in.packets",
[PCP_NET_SENDP] = "network.all.out.packets",
[PCP_PSI_CPUSOME] = "kernel.all.pressure.cpu.some.avg",
[PCP_PSI_IOSOME] = "kernel.all.pressure.io.some.avg",
[PCP_PSI_IOFULL] = "kernel.all.pressure.io.full.avg",
[PCP_PSI_MEMSOME] = "kernel.all.pressure.memory.some.avg",
[PCP_PSI_MEMFULL] = "kernel.all.pressure.memory.full.avg",
[PCP_ZFS_ARC_ANON_SIZE] = "zfs.arc.anon_size",
[PCP_ZFS_ARC_BONUS_SIZE] = "zfs.arc.bonus_size",
[PCP_ZFS_ARC_COMPRESSED_SIZE] = "zfs.arc.compressed_size",
[PCP_ZFS_ARC_UNCOMPRESSED_SIZE] = "zfs.arc.uncompressed_size",
[PCP_ZFS_ARC_C_MAX] = "zfs.arc.c_max",
[PCP_ZFS_ARC_DBUF_SIZE] = "zfs.arc.dbuf_size",
[PCP_ZFS_ARC_DNODE_SIZE] = "zfs.arc.dnode_size",
[PCP_ZFS_ARC_HDR_SIZE] = "zfs.arc.hdr_size",
[PCP_ZFS_ARC_MFU_SIZE] = "zfs.arc.mfu.size",
[PCP_ZFS_ARC_MRU_SIZE] = "zfs.arc.mru.size",
[PCP_ZFS_ARC_SIZE] = "zfs.arc.size",
[PCP_ZRAM_CAPACITY] = "zram.capacity",
[PCP_ZRAM_ORIGINAL] = "zram.mm_stat.data_size.original",
[PCP_ZRAM_COMPRESSED] = "zram.mm_stat.data_size.compressed",
[PCP_PROC_PID] = "proc.psinfo.pid",
[PCP_PROC_PPID] = "proc.psinfo.ppid",
[PCP_PROC_TGID] = "proc.psinfo.tgid",
[PCP_PROC_PGRP] = "proc.psinfo.pgrp",
[PCP_PROC_SESSION] = "proc.psinfo.session",
[PCP_PROC_STATE] = "proc.psinfo.sname",
[PCP_PROC_TTY] = "proc.psinfo.tty",
[PCP_PROC_TTYPGRP] = "proc.psinfo.tty_pgrp",
[PCP_PROC_MINFLT] = "proc.psinfo.minflt",
[PCP_PROC_MAJFLT] = "proc.psinfo.maj_flt",
[PCP_PROC_CMINFLT] = "proc.psinfo.cmin_flt",
[PCP_PROC_CMAJFLT] = "proc.psinfo.cmaj_flt",
[PCP_PROC_UTIME] = "proc.psinfo.utime",
[PCP_PROC_STIME] = "proc.psinfo.stime",
[PCP_PROC_CUTIME] = "proc.psinfo.cutime",
[PCP_PROC_CSTIME] = "proc.psinfo.cstime",
[PCP_PROC_PRIORITY] = "proc.psinfo.priority",
[PCP_PROC_NICE] = "proc.psinfo.nice",
[PCP_PROC_THREADS] = "proc.psinfo.threads",
[PCP_PROC_STARTTIME] = "proc.psinfo.start_time",
[PCP_PROC_PROCESSOR] = "proc.psinfo.processor",
[PCP_PROC_CMD] = "proc.psinfo.cmd",
[PCP_PROC_PSARGS] = "proc.psinfo.psargs",
[PCP_PROC_CGROUPS] = "proc.psinfo.cgroups",
[PCP_PROC_OOMSCORE] = "proc.psinfo.oom_score",
[PCP_PROC_VCTXSW] = "proc.psinfo.vctxsw",
[PCP_PROC_NVCTXSW] = "proc.psinfo.nvctxsw",
[PCP_PROC_LABELS] = "proc.psinfo.labels",
[PCP_PROC_ENVIRON] = "proc.psinfo.environ",
[PCP_PROC_TTYNAME] = "proc.psinfo.ttyname",
[PCP_PROC_EXE] = "proc.psinfo.exe",
[PCP_PROC_CWD] = "proc.psinfo.cwd",
[PCP_PROC_ID_UID] = "proc.id.uid",
[PCP_PROC_ID_USER] = "proc.id.uid_nm",
[PCP_PROC_IO_RCHAR] = "proc.io.rchar",
[PCP_PROC_IO_WCHAR] = "proc.io.wchar",
[PCP_PROC_IO_SYSCR] = "proc.io.syscr",
[PCP_PROC_IO_SYSCW] = "proc.io.syscw",
[PCP_PROC_IO_READB] = "proc.io.read_bytes",
[PCP_PROC_IO_WRITEB] = "proc.io.write_bytes",
[PCP_PROC_IO_CANCELLED] = "proc.io.cancelled_write_bytes",
[PCP_PROC_MEM_SIZE] = "proc.memory.size",
[PCP_PROC_MEM_RSS] = "proc.memory.rss",
[PCP_PROC_MEM_SHARE] = "proc.memory.share",
[PCP_PROC_MEM_TEXTRS] = "proc.memory.textrss",
[PCP_PROC_MEM_LIBRS] = "proc.memory.librss",
[PCP_PROC_MEM_DATRS] = "proc.memory.datrss",
[PCP_PROC_MEM_DIRTY] = "proc.memory.dirty",
[PCP_PROC_SMAPS_PSS] = "proc.smaps.pss",
[PCP_PROC_SMAPS_SWAP] = "proc.smaps.swap",
[PCP_PROC_SMAPS_SWAPPSS] = "proc.smaps.swappss",
[PCP_METRIC_COUNT] = NULL
};
pmAtomValue* Metric_values(Metric metric, pmAtomValue *atom, int count, int type) {
pmValueSet* vset = pcp->result->vset[metric];
if (!vset || vset->numval <= 0)
return NULL;
/* extract requested number of values as requested type */
const pmDesc* desc = &pcp->descs[metric];
for (int i = 0; i < vset->numval; i++) {
if (i == count)
break;
const pmValue *value = &vset->vlist[i];
int sts = pmExtractValue(vset->valfmt, value, desc->type, &atom[i], type);
if (sts < 0) {
if (pmDebugOptions.appl0)
fprintf(stderr, "Error: cannot extract metric value: %s\n",
pmErrStr(sts));
memset(&atom[i], 0, sizeof(pmAtomValue));
}
}
return atom;
}
int Metric_instanceCount(Metric metric) {
pmValueSet* vset = pcp->result->vset[metric];
if (vset)
return vset->numval;
return 0;
}
int Metric_instanceOffset(Metric metric, int inst) {
pmValueSet* vset = pcp->result->vset[metric];
if (!vset || vset->numval <= 0)
return 0;
/* search for optimal offset for subsequent inst lookups to begin */
for (int i = 0; i < vset->numval; i++) {
if (inst == vset->vlist[i].inst)
return i;
}
return 0;
}
static pmAtomValue *Metric_extract(Metric metric, int inst, int offset, pmValueSet *vset, pmAtomValue *atom, int type) {
/* extract value (using requested type) of given metric instance */
const pmDesc* desc = &pcp->descs[metric];
const pmValue *value = &vset->vlist[offset];
int sts = pmExtractValue(vset->valfmt, value, desc->type, atom, type);
if (sts < 0) {
if (pmDebugOptions.appl0)
fprintf(stderr, "Error: cannot extract %s instance %d value: %s\n",
pcp->names[metric], inst, pmErrStr(sts));
memset(atom, 0, sizeof(pmAtomValue));
}
return atom;
}
pmAtomValue *Metric_instance(Metric metric, int inst, int offset, pmAtomValue *atom, int type) {
pmValueSet* vset = pcp->result->vset[metric];
if (!vset || vset->numval <= 0)
return NULL;
/* fast-path using heuristic offset based on expected location */
if (offset >= 0 && offset < vset->numval && inst == vset->vlist[offset].inst)
return Metric_extract(metric, inst, offset, vset, atom, type);
/* slow-path using a linear search for the requested instance */
for (int i = 0; i < vset->numval; i++) {
if (inst == vset->vlist[i].inst)
return Metric_extract(metric, inst, i, vset, atom, type);
}
return NULL;
}
/*
* Iterate over a set of instances (incl PM_IN_NULL)
* returning the next instance identifier and offset.
*
* Start it off by passing offset -1 into the routine.
*/
bool Metric_iterate(Metric metric, int* instp, int* offsetp) {
pmValueSet* vset = pcp->result->vset[metric];
if (!vset || vset->numval <= 0)
return false;
int offset = *offsetp;
offset = (offset < 0) ? 0 : offset + 1;
if (offset > vset->numval - 1)
return false;
*offsetp = offset;
*instp = vset->vlist[offset].inst;
return true;
}
/* Switch on/off a metric for value fetching (sampling) */
void Metric_enable(Metric metric, bool enable) {
pcp->fetch[metric] = enable ? pcp->pmids[metric] : PM_ID_NULL;
}
bool Metric_enabled(Metric metric) {
return pcp->fetch[metric] != PM_ID_NULL;
}
void Metric_enableThreads(void) {
pmValueSet* vset = xCalloc(1, sizeof(pmValueSet));
vset->vlist[0].inst = PM_IN_NULL;
vset->vlist[0].value.lval = 1;
vset->valfmt = PM_VAL_INSITU;
vset->numval = 1;
vset->pmid = pcp->pmids[PCP_CONTROL_THREADS];
pmResult* result = xCalloc(1, sizeof(pmResult));
result->vset[0] = vset;
result->numpmid = 1;
int sts = pmStore(result);
if (sts < 0 && pmDebugOptions.appl0)
fprintf(stderr, "Error: cannot enable threads: %s\n", pmErrStr(sts));
pmFreeResult(result);
}
bool Metric_fetch(struct timeval *timestamp) {
if (pcp->result) {
pmFreeResult(pcp->result);
pcp->result = NULL;
}
int sts = pmFetch(pcp->total, pcp->fetch, &pcp->result);
if (sts < 0) {
if (pmDebugOptions.appl0)
fprintf(stderr, "Error: cannot fetch metric values: %s\n",
pmErrStr(sts));
return false;
}
if (timestamp)
*timestamp = pcp->result->timestamp;
return true;
}
static int Platform_addMetric(Metric id, const char *name) {
unsigned int i = (unsigned int)id;
if (i >= PCP_METRIC_COUNT && i >= pcp->total) {
/* added via configuration files */
unsigned int j = pcp->total + 1;
pcp->fetch = xRealloc(pcp->fetch, j * sizeof(pmID));
pcp->pmids = xRealloc(pcp->pmids, j * sizeof(pmID));
pcp->names = xRealloc(pcp->names, j * sizeof(char*));
pcp->descs = xRealloc(pcp->descs, j * sizeof(pmDesc));
memset(&pcp->descs[i], 0, sizeof(pmDesc));
}
pcp->pmids[i] = pcp->fetch[i] = PM_ID_NULL;
pcp->names[i] = name;
return ++pcp->total;
}
/* global state from the environment and command line arguments */
pmOptions opts;
void Platform_init(void) {
const char* source;
if (opts.context == PM_CONTEXT_ARCHIVE) {
source = opts.archives[0];
} else if (opts.context == PM_CONTEXT_HOST) {
source = opts.nhosts > 0 ? opts.hosts[0] : "local:";
} else {
opts.context = PM_CONTEXT_HOST;
source = "local:";
}
int sts;
sts = pmNewContext(opts.context, source);
/* with no host requested, fallback to PM_CONTEXT_LOCAL shared libraries */
if (sts < 0 && opts.context == PM_CONTEXT_HOST && opts.nhosts == 0) {
opts.context = PM_CONTEXT_LOCAL;
sts = pmNewContext(opts.context, NULL);
}
if (sts < 0) {
fprintf(stderr, "Cannot setup PCP metric source: %s\n", pmErrStr(sts));
exit(1);
}
/* setup timezones and other general startup preparation completion */
if (pmGetContextOptions(sts, &opts) < 0 || opts.errors) {
pmflush();
exit(1);
}
pcp = xCalloc(1, sizeof(Platform));
pcp->context = sts;
pcp->fetch = xCalloc(PCP_METRIC_COUNT, sizeof(pmID));
pcp->pmids = xCalloc(PCP_METRIC_COUNT, sizeof(pmID));
pcp->names = xCalloc(PCP_METRIC_COUNT, sizeof(char*));
pcp->descs = xCalloc(PCP_METRIC_COUNT, sizeof(pmDesc));
if (opts.context == PM_CONTEXT_ARCHIVE) {
gettimeofday(&pcp->offset, NULL);
pmtimevalDec(&pcp->offset, &opts.start);
}
for (unsigned int i = 0; i < PCP_METRIC_COUNT; i++)
Platform_addMetric(i, Platform_metricNames[i]);
sts = pmLookupName(pcp->total, pcp->names, pcp->pmids);
if (sts < 0) {
fprintf(stderr, "Error: cannot lookup metric names: %s\n", pmErrStr(sts));
exit(1);
}
for (unsigned int i = 0; i < pcp->total; i++) {
pcp->fetch[i] = PM_ID_NULL; /* default is to not sample */
/* expect some metrics to be missing - e.g. PMDA not available */
if (pcp->pmids[i] == PM_ID_NULL)
continue;
sts = pmLookupDesc(pcp->pmids[i], &pcp->descs[i]);
if (sts < 0) {
if (pmDebugOptions.appl0)
fprintf(stderr, "Error: cannot lookup metric %s(%s): %s\n",
pcp->names[i], pmIDStr(pcp->pmids[i]), pmErrStr(sts));
pcp->pmids[i] = PM_ID_NULL;
continue;
}
}
/* set proc.control.perclient.threads to 1 for live contexts */
Metric_enableThreads();
/* extract values needed for setup - e.g. cpu count, pid_max */
Metric_enable(PCP_PID_MAX, true);
Metric_enable(PCP_BOOTTIME, true);
Metric_enable(PCP_HINV_NCPU, true);
Metric_enable(PCP_PERCPU_SYSTEM, true);
Metric_enable(PCP_UNAME_SYSNAME, true);
Metric_enable(PCP_UNAME_RELEASE, true);
Metric_enable(PCP_UNAME_MACHINE, true);
Metric_enable(PCP_UNAME_DISTRO, true);
Metric_fetch(NULL);
for (Metric metric = 0; metric < PCP_PROC_PID; metric++)
Metric_enable(metric, true);
Metric_enable(PCP_PID_MAX, false); /* needed one time only */
Metric_enable(PCP_BOOTTIME, false);
Metric_enable(PCP_UNAME_SYSNAME, false);
Metric_enable(PCP_UNAME_RELEASE, false);
Metric_enable(PCP_UNAME_MACHINE, false);
Metric_enable(PCP_UNAME_DISTRO, false);
/* first sample (fetch) performed above, save constants */
Platform_getBootTime();
Platform_getRelease(0);
Platform_getMaxCPU();
Platform_getMaxPid();
}
void Platform_done(void) {
pmDestroyContext(pcp->context);
if (pcp->result)
pmFreeResult(pcp->result);
free(pcp->release);
free(pcp->fetch);
free(pcp->pmids);
free(pcp->names);
free(pcp->descs);
free(pcp);
}
void Platform_setBindings(Htop_Action* keys) {
/* no platform-specific key bindings */
(void)keys;
}
int Platform_getUptime(void) {
pmAtomValue value;
if (Metric_values(PCP_UPTIME, &value, 1, PM_TYPE_32) == NULL)
return 0;
return value.l;
}
void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
*one = *five = *fifteen = 0.0;
pmAtomValue values[3] = {0};
if (Metric_values(PCP_LOAD_AVERAGE, values, 3, PM_TYPE_DOUBLE) != NULL) {
*one = values[0].d;
*five = values[1].d;
*fifteen = values[2].d;
}
}
int Platform_getMaxCPU(void) {
if (pcp->ncpu)
return pcp->ncpu;
pmAtomValue value;
if (Metric_values(PCP_HINV_NCPU, &value, 1, PM_TYPE_32) != NULL)
pcp->ncpu = value.l;
else
pcp->ncpu = -1;
return pcp->ncpu;
}
int Platform_getMaxPid(void) {
if (pcp->pidmax)
return pcp->pidmax;
pmAtomValue value;
if (Metric_values(PCP_PID_MAX, &value, 1, PM_TYPE_32) == NULL)
return -1;
pcp->pidmax = value.l;
return pcp->pidmax;
}
long long Platform_getBootTime(void) {
if (pcp->btime)
return pcp->btime;
pmAtomValue value;
if (Metric_values(PCP_BOOTTIME, &value, 1, PM_TYPE_64) != NULL)
pcp->btime = value.ll;
return pcp->btime;
}
static double Platform_setOneCPUValues(Meter* this, pmAtomValue* values) {
unsigned long long value = values[CPU_TOTAL_PERIOD].ull;
double total = (double) (value == 0 ? 1 : value);
double percent;
double* v = this->values;
v[CPU_METER_NICE] = values[CPU_NICE_PERIOD].ull / total * 100.0;
v[CPU_METER_NORMAL] = values[CPU_USER_PERIOD].ull / total * 100.0;
if (this->pl->settings->detailedCPUTime) {
v[CPU_METER_KERNEL] = values[CPU_SYSTEM_PERIOD].ull / total * 100.0;
v[CPU_METER_IRQ] = values[CPU_IRQ_PERIOD].ull / total * 100.0;
v[CPU_METER_SOFTIRQ] = values[CPU_SOFTIRQ_PERIOD].ull / total * 100.0;
v[CPU_METER_STEAL] = values[CPU_STEAL_PERIOD].ull / total * 100.0;
v[CPU_METER_GUEST] = values[CPU_GUEST_PERIOD].ull / total * 100.0;
v[CPU_METER_IOWAIT] = values[CPU_IOWAIT_PERIOD].ull / total * 100.0;
this->curItems = 8;
if (this->pl->settings->accountGuestInCPUMeter)
percent = v[0] + v[1] + v[2] + v[3] + v[4] + v[5] + v[6];
else
percent = v[0] + v[1] + v[2] + v[3] + v[4];
} else {
v[2] = values[CPU_SYSTEM_ALL_PERIOD].ull / total * 100.0;
value = values[CPU_STEAL_PERIOD].ull + values[CPU_GUEST_PERIOD].ull;
v[3] = value / total * 100.0;
this->curItems = 4;
percent = v[0] + v[1] + v[2] + v[3];
}
percent = CLAMP(percent, 0.0, 100.0);
if (isnan(percent))
percent = 0.0;
v[CPU_METER_FREQUENCY] = values[CPU_FREQUENCY].d;
v[CPU_METER_TEMPERATURE] = NAN;
return percent;
}
double Platform_setCPUValues(Meter* this, int cpu) {
const PCPProcessList* pl = (const PCPProcessList*) this->pl;
if (cpu <= 0) /* use aggregate values */
return Platform_setOneCPUValues(this, pl->cpu);
return Platform_setOneCPUValues(this, pl->percpu[cpu - 1]);
}
void Platform_setMemoryValues(Meter* this) {
const ProcessList* pl = this->pl;
const PCPProcessList* ppl = (const PCPProcessList*) pl;
this->total = pl->totalMem;
this->values[0] = pl->usedMem;
this->values[1] = pl->buffersMem;
this->values[2] = pl->sharedMem;
this->values[3] = pl->cachedMem;
this->values[4] = pl->availableMem;
if (ppl->zfs.enabled != 0) {
this->values[0] -= ppl->zfs.size;
this->values[3] += ppl->zfs.size;
}
}
void Platform_setSwapValues(Meter* this) {
const ProcessList* pl = this->pl;
this->total = pl->totalSwap;
this->values[0] = pl->usedSwap;
this->values[1] = pl->cachedSwap;
}
void Platform_setZramValues(Meter* this) {
int i, count = Metric_instanceCount(PCP_ZRAM_CAPACITY);
if (!count) {
this->total = 0;
this->values[0] = 0;
this->values[1] = 0;
return;
}
pmAtomValue *values = xCalloc(count, sizeof(pmAtomValue));
ZramStats stats = {0};
if (Metric_values(PCP_ZRAM_CAPACITY, values, count, PM_TYPE_U64)) {
for (i = 0; i < count; i++)
stats.totalZram += values[i].ull;
}
if (Metric_values(PCP_ZRAM_ORIGINAL, values, count, PM_TYPE_U64)) {
for (i = 0; i < count; i++)
stats.usedZramOrig += values[i].ull;
}
if (Metric_values(PCP_ZRAM_COMPRESSED, values, count, PM_TYPE_U64)) {
for (i = 0; i < count; i++)
stats.usedZramComp += values[i].ull;
}
free(values);
this->total = stats.totalZram;
this->values[0] = stats.usedZramComp;
this->values[1] = stats.usedZramOrig;
}
void Platform_setZfsArcValues(Meter* this) {
const PCPProcessList* ppl = (const PCPProcessList*) this->pl;
ZfsArcMeter_readStats(this, &(ppl->zfs));
}
void Platform_setZfsCompressedArcValues(Meter* this) {
const PCPProcessList* ppl = (const PCPProcessList*) this->pl;
ZfsCompressedArcMeter_readStats(this, &(ppl->zfs));
}
void Platform_getHostname(char* buffer, size_t size) {
const char* hostname = pmGetContextHostName(pcp->context);
String_safeStrncpy(buffer, hostname, size);
}
void Platform_getRelease(char** string) {
/* fast-path - previously-formatted string */
if (string) {
*string = pcp->release;
return;
}
/* first call, extract just-sampled values */
pmAtomValue sysname, release, machine, distro;
if (!Metric_values(PCP_UNAME_SYSNAME, &sysname, 1, PM_TYPE_STRING))
sysname.cp = NULL;
if (!Metric_values(PCP_UNAME_RELEASE, &release, 1, PM_TYPE_STRING))
release.cp = NULL;
if (!Metric_values(PCP_UNAME_MACHINE, &machine, 1, PM_TYPE_STRING))
machine.cp = NULL;
if (!Metric_values(PCP_UNAME_DISTRO, &distro, 1, PM_TYPE_STRING))
distro.cp = NULL;
size_t length = 16; /* padded for formatting characters */
if (sysname.cp)
length += strlen(sysname.cp);
if (release.cp)
length += strlen(release.cp);
if (machine.cp)
length += strlen(machine.cp);
if (distro.cp)
length += strlen(distro.cp);
pcp->release = xCalloc(1, length);
if (sysname.cp) {
strcat(pcp->release, sysname.cp);
strcat(pcp->release, " ");
}
if (release.cp) {
strcat(pcp->release, release.cp);
strcat(pcp->release, " ");
}
if (machine.cp) {
strcat(pcp->release, "[");
strcat(pcp->release, machine.cp);
strcat(pcp->release, "] ");
}
if (distro.cp) {
if (pcp->release[0] != '\0') {
strcat(pcp->release, "@ ");
strcat(pcp->release, distro.cp);
} else {
strcat(pcp->release, distro.cp);
}
strcat(pcp->release, " ");
}
if (pcp->release) /* cull trailing space */
pcp->release[strlen(pcp->release)] = '\0';
free(distro.cp);
free(machine.cp);
free(release.cp);
free(sysname.cp);
}
char* Platform_getProcessEnv(pid_t pid) {
pmAtomValue value;
if (!Metric_instance(PCP_PROC_ENVIRON, pid, 0, &value, PM_TYPE_STRING))
return NULL;
return value.cp;
}
char* Platform_getInodeFilename(pid_t pid, ino_t inode) {
(void)pid;
(void)inode;
return NULL;
}
FileLocks_ProcessData* Platform_getProcessLocks(pid_t pid) {
(void)pid;
return NULL;
}
void Platform_getPressureStall(const char* file, bool some, double* ten, double* sixty, double* threehundred) {
*ten = *sixty = *threehundred = 0;
Metric metric;
if (String_eq(file, "cpu"))
metric = PCP_PSI_CPUSOME;
else if (String_eq(file, "io"))
metric = some ? PCP_PSI_IOSOME : PCP_PSI_IOFULL;
else if (String_eq(file, "mem"))
metric = some ? PCP_PSI_MEMSOME : PCP_PSI_MEMFULL;
else
return;
pmAtomValue values[3] = {0};
if (Metric_values(metric, values, 3, PM_TYPE_DOUBLE) != NULL) {
*ten = values[0].d;
*sixty = values[1].d;
*threehundred = values[2].d;
}
}
bool Platform_getDiskIO(DiskIOData* data) {
memset(data, 0, sizeof(*data));
pmAtomValue value;
if (Metric_values(PCP_DISK_READB, &value, 1, PM_TYPE_U64) != NULL)
data->totalBytesRead = value.ull;
if (Metric_values(PCP_DISK_WRITEB, &value, 1, PM_TYPE_U64) != NULL)
data->totalBytesWritten = value.ull;
if (Metric_values(PCP_DISK_ACTIVE, &value, 1, PM_TYPE_U64) != NULL)
data->totalMsTimeSpend = value.ull;
return true;
}
bool Platform_getNetworkIO(NetworkIOData* data) {
memset(data, 0, sizeof(*data));
pmAtomValue value;
if (Metric_values(PCP_NET_RECVB, &value, 1, PM_TYPE_U64) != NULL)
data->bytesReceived = value.ull;
if (Metric_values(PCP_NET_SENDB, &value, 1, PM_TYPE_U64) != NULL)
data->bytesTransmitted = value.ull;
if (Metric_values(PCP_NET_RECVP, &value, 1, PM_TYPE_U64) != NULL)
data->packetsReceived = value.ull;
if (Metric_values(PCP_NET_SENDP, &value, 1, PM_TYPE_U64) != NULL)
data->packetsTransmitted = value.ull;
return true;
}
void Platform_getBattery(double* level, ACPresence* isOnAC) {
*level = NAN;
*isOnAC = AC_ERROR;
}
void Platform_longOptionsUsage(ATTR_UNUSED const char* name) {
printf(
" --host=HOSTSPEC metrics source is PMCD at HOSTSPEC [see PCPIntro(1)]\n"
" --hostzone set reporting timezone to local time of metrics source\n"
" --timezone=TZ set reporting timezone\n");
}
bool Platform_getLongOption(int opt, ATTR_UNUSED int argc, char** argv) {
/* libpcp export without a header definition */
extern void __pmAddOptHost(pmOptions *, char *);
switch (opt) {
case PLATFORM_LONGOPT_HOST: /* --host=HOSTSPEC */
if (argv[optind][0] == '\0')
return false;
__pmAddOptHost(&opts, optarg);
return true;
case PLATFORM_LONGOPT_HOSTZONE: /* --hostzone */
if (opts.timezone) {
pmprintf("%s: at most one of -Z and -z allowed\n", pmGetProgname());
opts.errors++;
} else {
opts.tzflag = 1;
}
return true;
case PLATFORM_LONGOPT_TIMEZONE: /* --timezone=TZ */
if (argv[optind][0] == '\0')
return false;
if (opts.tzflag) {
pmprintf("%s: at most one of -Z and -z allowed\n", pmGetProgname());
opts.errors++;
} else {
opts.timezone = optarg;
}
return true;
default:
break;
}
return false;
}
void Platform_gettime_realtime(struct timeval* tv, uint64_t* msec) {
if (gettimeofday(tv, NULL) == 0) {
/* shift by start offset to stay in lock-step with realtime (archives) */
if (pcp->offset.tv_sec || pcp->offset.tv_usec)
pmtimevalDec(tv, &pcp->offset);
*msec = ((uint64_t)tv->tv_sec * 1000) + ((uint64_t)tv->tv_usec / 1000);
} else {
memset(tv, 0, sizeof(struct timeval));
*msec = 0;
}
}
void Platform_gettime_monotonic(uint64_t* msec) {
struct timeval* tv = &pcp->result->timestamp;
*msec = ((uint64_t)tv->tv_sec * 1000) + ((uint64_t)tv->tv_usec / 1000);
}
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