Rework CPU counting

Currently htop does not support offline CPUs and hot-swapping, e.g. via
    echo 0 > /sys/devices/system/cpu/cpu2/online

Split the current single cpuCount variable into activeCPUs and
existingCPUs.

Supersedes: #650
Related: #580
This commit is contained in:
Christian Göttsche 2021-06-12 18:17:28 +02:00 committed by Benny Baumann
parent c9abd788b1
commit 41af31be7f
28 changed files with 276 additions and 148 deletions

View File

@ -302,7 +302,7 @@ static Htop_Reaction actionSetAffinity(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
if (st->pl->cpuCount == 1)
if (st->pl->activeCPUs == 1)
return HTOP_OK;
#if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))

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@ -59,7 +59,7 @@ Affinity* Affinity_get(const Process* proc, ProcessList* pl) {
if (ok) {
affinity = Affinity_new(pl);
if (hwloc_bitmap_last(cpuset) == -1) {
for (unsigned int i = 0; i < pl->cpuCount; i++) {
for (unsigned int i = 0; i < pl->existingCPUs; i++) {
Affinity_add(affinity, i);
}
} else {
@ -93,7 +93,7 @@ Affinity* Affinity_get(const Process* proc, ProcessList* pl) {
return NULL;
Affinity* affinity = Affinity_new(pl);
for (unsigned int i = 0; i < pl->cpuCount; i++) {
for (unsigned int i = 0; i < pl->existingCPUs; i++) {
if (CPU_ISSET(i, &cpuset)) {
Affinity_add(affinity, i);
}

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@ -383,7 +383,8 @@ Panel* AffinityPanel_new(ProcessList* pl, const Affinity* affinity, int* width)
Panel_setHeader(super, "Use CPUs:");
unsigned int curCpu = 0;
for (unsigned int i = 0; i < pl->cpuCount; i++) {
for (unsigned int i = 0; i < pl->existingCPUs; i++) {
/* TODO: skip offline CPUs */
char number[16];
xSnprintf(number, 9, "CPU %d", Settings_cpuId(pl->settings, i));
unsigned cpu_width = 4 + strlen(number);
@ -427,7 +428,8 @@ Affinity* AffinityPanel_getAffinity(Panel* super, ProcessList* pl) {
Affinity_add(affinity, i);
hwloc_bitmap_foreach_end();
#else
for (unsigned int i = 0; i < this->pl->cpuCount; i++) {
for (unsigned int i = 0; i < this->pl->existingCPUs; i++) {
/* TODO: skip offline CPUs */
const MaskItem* item = (const MaskItem*)Vector_get(this->cpuids, i);
if (item->value) {
Affinity_add(affinity, item->cpu);

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@ -94,9 +94,9 @@ const PanelClass AvailableMetersPanel_class = {
// Handle (&CPUMeter_class) entries in the AvailableMetersPanel
static void AvailableMetersPanel_addCPUMeters(Panel* super, const MeterClass* type, const ProcessList* pl) {
if (pl->cpuCount > 1) {
if (pl->existingCPUs > 1) {
Panel_add(super, (Object*) ListItem_new("CPU average", 0));
for (unsigned int i = 1; i <= pl->cpuCount; i++) {
for (unsigned int i = 1; i <= pl->existingCPUs; i++) {
char buffer[50];
xSnprintf(buffer, sizeof(buffer), "%s %d", type->uiName, Settings_cpuId(pl->settings, i - 1));
Panel_add(super, (Object*) ListItem_new(buffer, i));

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@ -43,7 +43,7 @@ static void CPUMeter_init(Meter* this) {
unsigned int cpu = this->param;
if (cpu == 0) {
Meter_setCaption(this, "Avg");
} else if (this->pl->cpuCount > 1) {
} else if (this->pl->activeCPUs > 1) {
char caption[10];
xSnprintf(caption, sizeof(caption), "%3u", Settings_cpuId(this->pl->settings, cpu - 1));
Meter_setCaption(this, caption);
@ -59,21 +59,24 @@ static void CPUMeter_getUiName(const Meter* this, char* buffer, size_t length) {
}
static void CPUMeter_updateValues(Meter* this) {
memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
unsigned int cpu = this->param;
if (cpu > this->pl->cpuCount) {
if (cpu > this->pl->existingCPUs) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "absent");
for (uint8_t i = 0; i < this->curItems; i++)
this->values[i] = 0;
return;
}
memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
double percent = Platform_setCPUValues(this, cpu);
if (isnan(percent)) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "offline");
return;
}
char cpuUsageBuffer[8] = { 0 };
char cpuFrequencyBuffer[16] = { 0 };
char cpuTemperatureBuffer[16] = { 0 };
double percent = Platform_setCPUValues(this, cpu);
if (this->pl->settings->showCPUUsage) {
xSnprintf(cpuUsageBuffer, sizeof(cpuUsageBuffer), "%.1f%%", percent);
}
@ -112,7 +115,7 @@ static void CPUMeter_display(const Object* cast, RichString* out) {
int len;
const Meter* this = (const Meter*)cast;
if (this->param > this->pl->cpuCount) {
if (this->param > this->pl->existingCPUs) {
RichString_appendAscii(out, CRT_colors[METER_TEXT], "absent");
return;
}
@ -206,7 +209,7 @@ static void AllCPUsMeter_updateValues(Meter* this) {
}
static void CPUMeterCommonInit(Meter* this, int ncol) {
unsigned int cpus = this->pl->cpuCount;
unsigned int cpus = this->pl->existingCPUs;
CPUMeterData* data = this->meterData;
if (!data) {
data = this->meterData = xMalloc(sizeof(CPUMeterData));

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@ -295,7 +295,7 @@ int CommandLine_run(const char* name, int argc, char** argv) {
Hashtable* dm = DynamicMeters_new();
ProcessList* pl = ProcessList_new(ut, dm, flags.pidMatchList, flags.userId);
Settings* settings = Settings_new(pl->cpuCount);
Settings* settings = Settings_new(pl->activeCPUs);
pl->settings = settings;
Header* header = Header_new(pl, settings, 2);

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@ -47,12 +47,12 @@ static void LoadAverageMeter_updateValues(Meter* this) {
if (this->values[0] < 1.0) {
this->curAttributes = OK_attributes;
this->total = 1.0;
} else if (this->values[0] < this->pl->cpuCount) {
} else if (this->values[0] < this->pl->activeCPUs) {
this->curAttributes = Medium_attributes;
this->total = this->pl->cpuCount;
this->total = this->pl->activeCPUs;
} else {
this->curAttributes = High_attributes;
this->total = 2 * this->pl->cpuCount;
this->total = 2 * this->pl->activeCPUs;
}
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "%.2f/%.2f/%.2f", this->values[0], this->values[1], this->values[2]);
@ -79,12 +79,12 @@ static void LoadMeter_updateValues(Meter* this) {
if (this->values[0] < 1.0) {
this->curAttributes = OK_attributes;
this->total = 1.0;
} else if (this->values[0] < this->pl->cpuCount) {
} else if (this->values[0] < this->pl->activeCPUs) {
this->curAttributes = Medium_attributes;
this->total = this->pl->cpuCount;
this->total = this->pl->activeCPUs;
} else {
this->curAttributes = High_attributes;
this->total = 2 * this->pl->cpuCount;
this->total = 2 * this->pl->activeCPUs;
}
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "%.2f", this->values[0]);

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@ -821,7 +821,7 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
case PERCENT_NORM_CPU: {
float cpuPercentage = this->percent_cpu;
if (field == PERCENT_NORM_CPU) {
cpuPercentage /= this->processList->cpuCount;
cpuPercentage /= this->processList->activeCPUs;
}
if (cpuPercentage > 999.9F) {
xSnprintf(buffer, n, "%4u ", (unsigned int)cpuPercentage);

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@ -34,7 +34,8 @@ ProcessList* ProcessList_init(ProcessList* this, const ObjectClass* klass, Users
this->userId = userId;
// set later by platform-specific code
this->cpuCount = 0;
this->activeCPUs = 0;
this->existingCPUs = 0;
this->monotonicMs = 0;
// always maintain valid realtime timestamps

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@ -83,7 +83,8 @@ typedef struct ProcessList_ {
memory_t usedSwap;
memory_t cachedSwap;
unsigned int cpuCount;
unsigned int activeCPUs;
unsigned int existingCPUs;
} ProcessList;
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* pidMatchList, uid_t userId);

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@ -28,7 +28,7 @@ static void TasksMeter_updateValues(Meter* this) {
this->values[0] = pl->kernelThreads;
this->values[1] = pl->userlandThreads;
this->values[2] = pl->totalTasks - pl->kernelThreads - pl->userlandThreads;
this->values[3] = MINIMUM(pl->runningTasks, pl->cpuCount);
this->values[3] = MINIMUM(pl->runningTasks, pl->activeCPUs);
this->total = pl->totalTasks;
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "%d/%d", (int) this->values[3], (int) this->total);

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@ -134,7 +134,9 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
ProcessList_init(&this->super, Class(DarwinProcess), usersTable, dynamicMeters, pidMatchList, userId);
/* Initialize the CPU information */
this->super.cpuCount = ProcessList_allocateCPULoadInfo(&this->prev_load);
this->super.activeCPUs = ProcessList_allocateCPULoadInfo(&this->prev_load);
// TODO: support offline CPUs and hot swapping
this->super.existingCPUs = this->super.activeCPUs;
ProcessList_getHostInfo(&this->host_info);
ProcessList_allocateCPULoadInfo(&this->curr_load);
@ -184,13 +186,13 @@ void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
/* Get the time difference */
dpl->global_diff = 0;
for (unsigned int i = 0; i < dpl->super.cpuCount; ++i) {
for (unsigned int i = 0; i < dpl->super.existingCPUs; ++i) {
for (size_t j = 0; j < CPU_STATE_MAX; ++j) {
dpl->global_diff += dpl->curr_load[i].cpu_ticks[j] - dpl->prev_load[i].cpu_ticks[j];
}
}
const double time_interval = ticksToNanoseconds(dpl->global_diff) / (double) dpl->super.cpuCount;
const double time_interval = ticksToNanoseconds(dpl->global_diff) / (double) dpl->super.activeCPUs;
/* Clear the thread counts */
super->kernelThreads = 0;

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@ -186,21 +186,21 @@ int Platform_getMaxPid() {
static double Platform_setCPUAverageValues(Meter* mtr) {
const ProcessList* dpl = mtr->pl;
unsigned int cpus = dpl->cpuCount;
unsigned int activeCPUs = dpl->activeCPUs;
double sumNice = 0.0;
double sumNormal = 0.0;
double sumKernel = 0.0;
double sumPercent = 0.0;
for (unsigned int i = 1; i <= cpus; i++) {
for (unsigned int i = 1; i <= dpl->existingCPUs; i++) {
sumPercent += Platform_setCPUValues(mtr, i);
sumNice += mtr->values[CPU_METER_NICE];
sumNormal += mtr->values[CPU_METER_NORMAL];
sumKernel += mtr->values[CPU_METER_KERNEL];
}
mtr->values[CPU_METER_NICE] = sumNice / cpus;
mtr->values[CPU_METER_NORMAL] = sumNormal / cpus;
mtr->values[CPU_METER_KERNEL] = sumKernel / cpus;
return sumPercent / cpus;
mtr->values[CPU_METER_NICE] = sumNice / activeCPUs;
mtr->values[CPU_METER_NORMAL] = sumNormal / activeCPUs;
mtr->values[CPU_METER_KERNEL] = sumKernel / activeCPUs;
return sumPercent / activeCPUs;
}
double Platform_setCPUValues(Meter* mtr, unsigned int cpu) {

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@ -95,13 +95,15 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
sysctl(MIB_kern_cp_times, 2, dfpl->cp_times_o, &len, NULL, 0);
}
pl->cpuCount = MAXIMUM(cpus, 1);
pl->existingCPUs = MAXIMUM(cpus, 1);
// TODO: support offline CPUs and hot swapping
pl->activeCPUs = pl->existingCPUs;
if (cpus == 1 ) {
dfpl->cpus = xRealloc(dfpl->cpus, sizeof(CPUData));
} else {
// on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well)
dfpl->cpus = xRealloc(dfpl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
dfpl->cpus = xRealloc(dfpl->cpus, (pl->existingCPUs + 1) * sizeof(CPUData));
}
len = sizeof(kernelFScale);
@ -140,7 +142,7 @@ void ProcessList_delete(ProcessList* this) {
static inline void DragonFlyBSDProcessList_scanCPUTime(ProcessList* pl) {
const DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) pl;
unsigned int cpus = pl->cpuCount; // actual CPU count
unsigned int cpus = pl->existingCPUs; // actual CPU count
unsigned int maxcpu = cpus; // max iteration (in case we have average + smp)
int cp_times_offset;

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@ -159,7 +159,7 @@ int Platform_getMaxPid() {
double Platform_setCPUValues(Meter* this, unsigned int cpu) {
const DragonFlyBSDProcessList* fpl = (const DragonFlyBSDProcessList*) this->pl;
unsigned int cpus = this->pl->cpuCount;
unsigned int cpus = this->pl->activeCPUs;
const CPUData* cpuData;
if (cpus == 1) {

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@ -125,13 +125,15 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
sysctl(MIB_kern_cp_times, 2, fpl->cp_times_o, &len, NULL, 0);
}
pl->cpuCount = MAXIMUM(cpus, 1);
pl->existingCPUs = MAXIMUM(cpus, 1);
// TODO: support offline CPUs and hot swapping
pl->activeCPUs = pl->existingCPUs;
if (cpus == 1 ) {
fpl->cpus = xRealloc(fpl->cpus, sizeof(CPUData));
} else {
// on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well)
fpl->cpus = xRealloc(fpl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
fpl->cpus = xRealloc(fpl->cpus, (pl->existingCPUs + 1) * sizeof(CPUData));
}
@ -169,7 +171,7 @@ void ProcessList_delete(ProcessList* this) {
static inline void FreeBSDProcessList_scanCPU(ProcessList* pl) {
const FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
unsigned int cpus = pl->cpuCount; // actual CPU count
unsigned int cpus = pl->existingCPUs; // actual CPU count
unsigned int maxcpu = cpus; // max iteration (in case we have average + smp)
int cp_times_offset;

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@ -181,7 +181,7 @@ int Platform_getMaxPid() {
double Platform_setCPUValues(Meter* this, unsigned int cpu) {
const FreeBSDProcessList* fpl = (const FreeBSDProcessList*) this->pl;
unsigned int cpus = this->pl->cpuCount;
unsigned int cpus = this->pl->activeCPUs;
const CPUData* cpuData;
if (cpus == 1) {

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@ -32,10 +32,10 @@ static void* dlopenHandle = NULL;
#endif /* BUILD_STATIC */
int LibSensors_init(FILE* input) {
int LibSensors_init(void) {
#ifdef BUILD_STATIC
return sym_sensors_init(input);
return sym_sensors_init(NULL);
#else
@ -69,7 +69,7 @@ int LibSensors_init(FILE* input) {
#undef resolve
}
return sym_sensors_init(input);
return sym_sensors_init(NULL);
dlfailure:
@ -99,6 +99,18 @@ void LibSensors_cleanup(void) {
#endif /* BUILD_STATIC */
}
int LibSensors_reload(void) {
#ifndef BUILD_STATIC
if (!dlopenHandle) {
errno = ENOTSUP;
return -1;
}
#endif /* !BUILD_STATIC */
sym_sensors_cleanup();
return sym_sensors_init(NULL);
}
static int tempDriverPriority(const sensors_chip_name* chip) {
static const struct TempDriverDefs {
const char* prefix;
@ -120,10 +132,10 @@ static int tempDriverPriority(const sensors_chip_name* chip) {
return -1;
}
void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
assert(cpuCount > 0 && cpuCount < 16384);
double data[cpuCount + 1];
for (size_t i = 0; i < cpuCount + 1; i++)
void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int existingCPUs, unsigned int activeCPUs) {
assert(existingCPUs > 0 && existingCPUs < 16384);
double data[existingCPUs + 1];
for (size_t i = 0; i < existingCPUs + 1; i++)
data[i] = NAN;
#ifndef BUILD_STATIC
@ -145,7 +157,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
if (priority < topPriority) {
/* Clear data from lower priority sensor */
for (size_t i = 0; i < cpuCount + 1; i++)
for (size_t i = 0; i < existingCPUs + 1; i++)
data[i] = NAN;
}
@ -166,7 +178,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
/* Feature name IDs start at 1, adjust to start at 0 to match data indices */
tempID--;
if (tempID > cpuCount)
if (tempID > existingCPUs)
continue;
const sensors_subfeature* subFeature = sym_sensors_get_subfeature(chip, feature, SENSORS_SUBFEATURE_TEMP_INPUT);
@ -190,8 +202,8 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
}
/* Adjust data for chips not providing a platform temperature */
if (coreTempCount + 1 == cpuCount || coreTempCount + 1 == cpuCount / 2) {
memmove(&data[1], &data[0], cpuCount * sizeof(*data));
if (coreTempCount + 1 == activeCPUs || coreTempCount + 1 == activeCPUs / 2) {
memmove(&data[1], &data[0], existingCPUs * sizeof(*data));
data[0] = NAN;
coreTempCount++;
@ -200,7 +212,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
/* Only package temperature - copy to all cores */
if (coreTempCount == 0 && !isnan(data[0])) {
for (unsigned int i = 1; i <= cpuCount; i++)
for (unsigned int i = 1; i <= existingCPUs; i++)
data[i] = data[0];
/* No further adjustments */
@ -210,7 +222,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
/* No package temperature - set to max core temperature */
if (isnan(data[0]) && coreTempCount != 0) {
double maxTemp = NAN;
for (unsigned int i = 1; i <= cpuCount; i++) {
for (unsigned int i = 1; i <= existingCPUs; i++) {
if (isnan(data[i]))
continue;
@ -224,7 +236,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
/* Only temperature for core 0, maybe Ryzen - copy to all other cores */
if (coreTempCount == 1 && !isnan(data[1])) {
for (unsigned int i = 2; i <= cpuCount; i++)
for (unsigned int i = 2; i <= existingCPUs; i++)
data[i] = data[1];
/* No further adjustments */
@ -232,7 +244,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
}
/* Half the temperatures, probably HT/SMT - copy to second half */
const unsigned int delta = cpuCount / 2;
const unsigned int delta = activeCPUs / 2;
if (coreTempCount == delta) {
memcpy(&data[delta + 1], &data[1], delta * sizeof(*data));
@ -241,7 +253,7 @@ void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
}
out:
for (unsigned int i = 0; i <= cpuCount; i++)
for (unsigned int i = 0; i <= existingCPUs; i++)
cpus[i].temperature = data[i];
}

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@ -8,9 +8,10 @@
#include "linux/LinuxProcessList.h"
int LibSensors_init(FILE* input);
int LibSensors_init(void);
void LibSensors_cleanup(void);
int LibSensors_reload(void);
void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount);
void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int existingCPUs, unsigned int activeCPUs);
#endif /* HEADER_LibSensors */

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@ -158,30 +158,85 @@ static void LinuxProcessList_initNetlinkSocket(LinuxProcessList* this) {
#endif
static void LinuxProcessList_updateCPUcount(ProcessList* super, FILE* stream) {
static void LinuxProcessList_updateCPUcount(ProcessList* super) {
/* Similiar to get_nprocs_conf(3) / _SC_NPROCESSORS_CONF
* https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/getsysstats.c;hb=HEAD
*/
LinuxProcessList* this = (LinuxProcessList*) super;
unsigned int existing = 0, active = 0;
unsigned int cpus = 0;
char buffer[PROC_LINE_LENGTH + 1];
while (fgets(buffer, sizeof(buffer), stream)) {
if (String_startsWith(buffer, "cpu")) {
cpus++;
}
DIR* dir = opendir("/sys/devices/system/cpu");
if (!dir) {
super->activeCPUs = 1;
super->existingCPUs = 1;
this->cpuData = xReallocArray(this->cpuData, 2, sizeof(CPUData));
this->cpuData[0].online = true;
this->cpuData[1].online = true;
return;
}
if (cpus == 0)
CRT_fatalError("No cpu entry in " PROCSTATFILE);
if (cpus == 1)
CRT_fatalError("No cpu aggregate or cpuN entry in " PROCSTATFILE);
unsigned int currExisting = super->existingCPUs;
/* Subtract aggregate cpu entry */
cpus--;
const struct dirent* entry;
while ((entry = readdir(dir)) != NULL) {
if (entry->d_type != DT_DIR)
continue;
if (cpus != super->cpuCount || !this->cpus) {
super->cpuCount = MAXIMUM(cpus, 1);
free(this->cpus);
this->cpus = xCalloc(cpus + 1, sizeof(CPUData));
if (!String_startsWith(entry->d_name, "cpu"))
continue;
char *endp;
unsigned long int id = strtoul(entry->d_name + 3, &endp, 10);
if (id == ULONG_MAX || endp == entry->d_name + 3 || *endp != '\0')
continue;
#ifdef HAVE_OPENAT
int cpuDirFd = openat(dirfd(dir), entry->d_name, O_DIRECTORY | O_PATH | O_NOFOLLOW);
if (cpuDirFd < 0)
continue;
#else
char cpuDirFd[4096];
xSnprintf(cpuDirFd, sizeof(cpuDirFd), "/sys/devices/system/cpu/%s", entry->d_name);
#endif
existing++;
/* readdir() iterates with no specific order */
unsigned int max = MAXIMUM(existing, id + 1);
if (max > currExisting) {
this->cpuData = xReallocArray(this->cpuData, max + /* aggregate */ 1, sizeof(CPUData));
for (unsigned int j = currExisting; j < max; j++) {
this->cpuData[j].online = false;
}
currExisting = max;
}
char buffer[8];
ssize_t res = xReadfileat(cpuDirFd, "online", buffer, sizeof(buffer));
/* If the file "online" does not exist or on failure count as active */
if (res < 1 || buffer[0] != '0') {
active++;
this->cpuData[id + 1].online = true;
} else {
this->cpuData[id + 1].online = false;
}
Compat_openatArgClose(cpuDirFd);
}
closedir(dir);
#ifdef HAVE_SENSORS_SENSORS_H
/* When started with offline CPUs, libsensors does not monitor those,
* even when they become online. */
if (super->existingCPUs != 0 && (active > super->activeCPUs || currExisting > super->existingCPUs))
LibSensors_reload();
#endif
super->activeCPUs = active;
assert(existing == currExisting);
super->existingCPUs = currExisting;
}
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* pidMatchList, uid_t userId) {
@ -220,15 +275,13 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
CRT_fatalError("Failed to parse btime from " PROCSTATFILE);
}
fclose(statfile);
if (btime == -1)
CRT_fatalError("No btime in " PROCSTATFILE);
rewind(statfile);
// Initialize CPU count
LinuxProcessList_updateCPUcount(pl, statfile);
fclose(statfile);
LinuxProcessList_updateCPUcount(pl);
return pl;
}
@ -236,7 +289,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
void ProcessList_delete(ProcessList* pl) {
LinuxProcessList* this = (LinuxProcessList*) pl;
ProcessList_done(pl);
free(this->cpus);
free(this->cpuData);
if (this->ttyDrivers) {
for (int i = 0; this->ttyDrivers[i].path; i++) {
free(this->ttyDrivers[i].path);
@ -1270,9 +1323,9 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, openat_arg_
return false;
}
unsigned int cpus = pl->cpuCount;
bool hideKernelThreads = settings->hideKernelThreads;
bool hideUserlandThreads = settings->hideUserlandThreads;
const unsigned int activeCPUs = pl->activeCPUs;
const bool hideKernelThreads = settings->hideKernelThreads;
const bool hideUserlandThreads = settings->hideUserlandThreads;
while ((entry = readdir(dir)) != NULL) {
const char* name = entry->d_name;
@ -1407,7 +1460,7 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, openat_arg_
/* period might be 0 after system sleep */
float percent_cpu = (period < 1E-6) ? 0.0F : ((lp->utime + lp->stime - lasttimes) / period * 100.0);
proc->percent_cpu = CLAMP(percent_cpu, 0.0F, cpus * 100.0F);
proc->percent_cpu = CLAMP(percent_cpu, 0.0F, activeCPUs * 100.0F);
proc->percent_mem = proc->m_resident / (double)(pl->totalMem) * 100.0;
if (! LinuxProcessList_updateUser(pl, proc, procFd))
@ -1771,33 +1824,50 @@ static inline void LinuxProcessList_scanZfsArcstats(LinuxProcessList* lpl) {
static inline double LinuxProcessList_scanCPUTime(ProcessList* super) {
LinuxProcessList* this = (LinuxProcessList*) super;
LinuxProcessList_updateCPUcount(super);
FILE* file = fopen(PROCSTATFILE, "r");
if (!file)
CRT_fatalError("Cannot open " PROCSTATFILE);
LinuxProcessList_updateCPUcount(super, file);
unsigned int existingCPUs = super->existingCPUs;
unsigned int lastAdjCpuId = 0;
rewind(file);
unsigned int cpus = super->cpuCount;
for (unsigned int i = 0; i <= cpus; i++) {
for (unsigned int i = 0; i <= existingCPUs; i++) {
char buffer[PROC_LINE_LENGTH + 1];
unsigned long long int usertime, nicetime, systemtime, idletime;
unsigned long long int ioWait = 0, irq = 0, softIrq = 0, steal = 0, guest = 0, guestnice = 0;
// Depending on your kernel version,
// 5, 7, 8 or 9 of these fields will be set.
// The rest will remain at zero.
const char* ok = fgets(buffer, sizeof(buffer), file);
if (!ok)
break;
// cpu fields are sorted first
if (!String_startsWith(buffer, "cpu"))
break;
// Depending on your kernel version,
// 5, 7, 8 or 9 of these fields will be set.
// The rest will remain at zero.
unsigned int adjCpuId;
if (i == 0) {
(void) sscanf(buffer, "cpu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu", &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
adjCpuId = 0;
} else {
unsigned int cpuid;
(void) sscanf(buffer, "cpu%4u %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu", &cpuid, &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
assert(cpuid == i - 1);
adjCpuId = cpuid + 1;
}
if (adjCpuId > super->existingCPUs)
break;
for (unsigned int j = lastAdjCpuId + 1; j < adjCpuId; j++) {
// Skipped an ID, but /proc/stat is ordered => got offline CPU
memset(&(this->cpuData[j]), '\0', sizeof(CPUData));
}
lastAdjCpuId = adjCpuId;
// Guest time is already accounted in usertime
usertime -= guest;
nicetime -= guestnice;
@ -1807,7 +1877,7 @@ static inline double LinuxProcessList_scanCPUTime(ProcessList* super) {
unsigned long long int systemalltime = systemtime + irq + softIrq;
unsigned long long int virtalltime = guest + guestnice;
unsigned long long int totaltime = usertime + nicetime + systemalltime + idlealltime + steal + virtalltime;
CPUData* cpuData = &(this->cpus[i]);
CPUData* cpuData = &(this->cpuData[adjCpuId]);
// Since we do a subtraction (usertime - guest) and cputime64_to_clock_t()
// used in /proc/stat rounds down numbers, it can lead to a case where the
// integer overflow.
@ -1837,7 +1907,7 @@ static inline double LinuxProcessList_scanCPUTime(ProcessList* super) {
cpuData->totalTime = totaltime;
}
double period = (double)this->cpus[0].totalPeriod / cpus;
double period = (double)this->cpuData[0].totalPeriod / super->activeCPUs;
char buffer[PROC_LINE_LENGTH + 1];
while (fgets(buffer, sizeof(buffer), file)) {
@ -1853,7 +1923,7 @@ static inline double LinuxProcessList_scanCPUTime(ProcessList* super) {
}
static int scanCPUFreqencyFromSysCPUFreq(LinuxProcessList* this) {
unsigned int cpus = this->super.cpuCount;
unsigned int existingCPUs = this->super.existingCPUs;
int numCPUsWithFrequency = 0;
unsigned long totalFrequency = 0;
@ -1871,7 +1941,7 @@ static int scanCPUFreqencyFromSysCPUFreq(LinuxProcessList* this) {
return -1;
}
for (unsigned int i = 0; i < cpus; ++i) {
for (unsigned int i = 0; i < existingCPUs; ++i) {
char pathBuffer[64];
xSnprintf(pathBuffer, sizeof(pathBuffer), "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_cur_freq", i);
@ -1887,7 +1957,7 @@ static int scanCPUFreqencyFromSysCPUFreq(LinuxProcessList* this) {
if (fscanf(file, "%lu", &frequency) == 1) {
/* convert kHz to MHz */
frequency = frequency / 1000;
this->cpus[i + 1].frequency = frequency;
this->cpuData[i + 1].frequency = frequency;
numCPUsWithFrequency++;
totalFrequency += frequency;
}
@ -1907,7 +1977,7 @@ static int scanCPUFreqencyFromSysCPUFreq(LinuxProcessList* this) {
}
if (numCPUsWithFrequency > 0)
this->cpus[0].frequency = (double)totalFrequency / numCPUsWithFrequency;
this->cpuData[0].frequency = (double)totalFrequency / numCPUsWithFrequency;
return 0;
}
@ -1917,7 +1987,7 @@ static void scanCPUFreqencyFromCPUinfo(LinuxProcessList* this) {
if (file == NULL)
return;
unsigned int cpus = this->super.cpuCount;
unsigned int existingCPUs = this->super.existingCPUs;
int numCPUsWithFrequency = 0;
double totalFrequency = 0;
int cpuid = -1;
@ -1940,11 +2010,11 @@ static void scanCPUFreqencyFromCPUinfo(LinuxProcessList* this) {
(sscanf(buffer, "clock : %lfMHz", &frequency) == 1) ||
(sscanf(buffer, "clock: %lfMHz", &frequency) == 1)
) {
if (cpuid < 0 || (unsigned int)cpuid > (cpus - 1)) {
if (cpuid < 0 || (unsigned int)cpuid > (existingCPUs - 1)) {
continue;
}
CPUData* cpuData = &(this->cpus[cpuid + 1]);
CPUData* cpuData = &(this->cpuData[cpuid + 1]);
/* do not override sysfs data */
if (isnan(cpuData->frequency)) {
cpuData->frequency = frequency;
@ -1958,15 +2028,15 @@ static void scanCPUFreqencyFromCPUinfo(LinuxProcessList* this) {
fclose(file);
if (numCPUsWithFrequency > 0) {
this->cpus[0].frequency = totalFrequency / numCPUsWithFrequency;
this->cpuData[0].frequency = totalFrequency / numCPUsWithFrequency;
}
}
static void LinuxProcessList_scanCPUFrequency(LinuxProcessList* this) {
unsigned int cpus = this->super.cpuCount;
unsigned int existingCPUs = this->super.existingCPUs;
for (unsigned int i = 0; i <= cpus; i++) {
this->cpus[i].frequency = NAN;
for (unsigned int i = 0; i <= existingCPUs; i++) {
this->cpuData[i].frequency = NAN;
}
if (scanCPUFreqencyFromSysCPUFreq(this) == 0) {
@ -1993,7 +2063,7 @@ void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
#ifdef HAVE_SENSORS_SENSORS_H
if (settings->showCPUTemperature)
LibSensors_getCPUTemperatures(this->cpus, this->super.cpuCount);
LibSensors_getCPUTemperatures(this->cpuData, this->super.existingCPUs, this->super.activeCPUs);
#endif
// in pause mode only gather global data for meters (CPU/memory/...)

View File

@ -53,6 +53,8 @@ typedef struct CPUData_ {
#ifdef HAVE_SENSORS_SENSORS_H
double temperature;
#endif
bool online;
} CPUData;
typedef struct TtyDriver_ {
@ -65,7 +67,8 @@ typedef struct TtyDriver_ {
typedef struct LinuxProcessList_ {
ProcessList super;
CPUData* cpus;
CPUData* cpuData;
TtyDriver* ttyDrivers;
bool haveSmapsRollup;

View File

@ -246,10 +246,16 @@ int Platform_getMaxPid() {
double Platform_setCPUValues(Meter* this, unsigned int cpu) {
const LinuxProcessList* pl = (const LinuxProcessList*) this->pl;
const CPUData* cpuData = &(pl->cpus[cpu]);
const CPUData* cpuData = &(pl->cpuData[cpu]);
double total = (double) ( cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod);
double percent;
double* v = this->values;
if (!cpuData->online) {
this->curItems = 0;
return NAN;
}
v[CPU_METER_NICE] = cpuData->nicePeriod / total * 100.0;
v[CPU_METER_NORMAL] = cpuData->userPeriod / total * 100.0;
if (this->pl->settings->detailedCPUTime) {
@ -1000,7 +1006,7 @@ void Platform_init(void) {
}
#ifdef HAVE_SENSORS_SENSORS_H
LibSensors_init(NULL);
LibSensors_init();
#endif
}

View File

@ -42,7 +42,6 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
const int fmib[] = { CTL_KERN, KERN_FSCALE };
int r;
unsigned int cpu_index_c = 0;
unsigned int ncpu;
size_t size;
char errbuf[_POSIX2_LINE_MAX];
@ -50,17 +49,19 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
ProcessList* pl = (ProcessList*) opl;
ProcessList_init(pl, Class(OpenBSDProcess), usersTable, dynamicMeters, pidMatchList, userId);
size = sizeof(pl->cpuCount);
r = sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0);
if (r < 0 || pl->cpuCount < 1) {
pl->cpuCount = 1;
// TODO: test offline CPUs and hot swapping
size = sizeof(pl->activeCPUs);
r = sysctl(mib, 2, &pl->activeCPUs, &size, NULL, 0);
if (r < 0 || pl->activeCPUs < 1) {
pl->activeCPUs = 1;
}
opl->cpus = xCalloc(pl->cpuCount + 1, sizeof(CPUData));
opl->cpus = xCalloc(pl->activeCPUs + 1, sizeof(CPUData));
size = sizeof(int);
r = sysctl(nmib, 2, &ncpu, &size, NULL, 0);
r = sysctl(nmib, 2, &pl->existingCPUs, &size, NULL, 0);
if (r < 0) {
ncpu = pl->cpuCount;
pl->existingCPUs = pl->activeCPUs;
}
size = sizeof(fscale);
@ -72,7 +73,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
CRT_fatalError("pagesize sysconf call failed");
pageSizeKB = pageSize / ONE_K;
for (unsigned int i = 0; i <= pl->cpuCount; i++) {
for (unsigned int i = 0; i <= pl->activeCPUs; i++) {
CPUData* d = opl->cpus + i;
d->totalTime = 1;
d->totalPeriod = 1;
@ -85,7 +86,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
opl->cpuSpeed = -1;
for (unsigned int i = 0; i < ncpu; i++) {
for (unsigned int i = 0; i < pl->existingCPUs; i++) {
const int ncmib[] = { CTL_KERN, KERN_CPUSTATS, i };
struct cpustats cpu_stats;
@ -98,7 +99,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
cpu_index_c++;
}
if (cpu_index_c == pl->cpuCount)
if (cpu_index_c == pl->activeCPUs)
break;
}
@ -312,7 +313,7 @@ static void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) {
proc->m_virt = kproc->p_vm_dsize * pageSizeKB;
proc->m_resident = kproc->p_vm_rssize * pageSizeKB;
proc->percent_mem = proc->m_resident / (float)this->super.totalMem * 100.0F;
proc->percent_cpu = CLAMP(getpcpu(kproc), 0.0F, this->super.cpuCount * 100.0F);
proc->percent_cpu = CLAMP(getpcpu(kproc), 0.0F, this->super.activeCPUs * 100.0F);
proc->nice = kproc->p_nice - 20;
proc->time = 100 * (kproc->p_rtime_sec + ((kproc->p_rtime_usec + 500000) / 1000000));
proc->priority = kproc->p_priority - PZERO;
@ -400,7 +401,7 @@ static void OpenBSDProcessList_scanCPUTime(OpenBSDProcessList* this) {
u_int64_t kernelTimes[CPUSTATES] = {0};
u_int64_t avg[CPUSTATES] = {0};
for (unsigned int i = 0; i < this->super.cpuCount; i++) {
for (unsigned int i = 0; i < this->super.activeCPUs; i++) {
getKernelCPUTimes(this->cpus[i].cpuIndex, kernelTimes);
CPUData* cpu = this->cpus + i + 1;
kernelCPUTimesToHtop(kernelTimes, cpu);
@ -416,7 +417,7 @@ static void OpenBSDProcessList_scanCPUTime(OpenBSDProcessList* this) {
}
for (int i = 0; i < CPUSTATES; i++) {
avg[i] /= this->super.cpuCount;
avg[i] /= this->super.activeCPUs;
}
kernelCPUTimesToHtop(avg, this->cpus);

View File

@ -169,11 +169,25 @@ int Platform_getMaxPid() {
double Platform_setCPUValues(Meter* this, unsigned int cpu) {
const OpenBSDProcessList* pl = (const OpenBSDProcessList*) this->pl;
const CPUData* cpuData = &(pl->cpus[cpu]);
double total = cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod;
const CPUData* cpuData = NULL;
double total;
double totalPercent;
double* v = this->values;
for (unsigned int i = 0; i < pl->super.activeCPUs; i++) {
if (pl->cpus[i].cpuIndex == cpu) {
cpuData = &(pl->cpus[i]);
break;
}
}
if (!cpuData) {
this->curItems = 0;
return NAN;
}
total = cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod;
v[CPU_METER_NICE] = cpuData->nicePeriod / total * 100.0;
v[CPU_METER_NORMAL] = cpuData->userPeriod / total * 100.0;
if (this->pl->settings->detailedCPUTime) {

View File

@ -33,10 +33,13 @@ static int PCPProcessList_computeCPUcount(void) {
static void PCPProcessList_updateCPUcount(PCPProcessList* this) {
ProcessList* pl = &(this->super);
unsigned int cpus = PCPProcessList_computeCPUcount();
if (cpus == pl->cpuCount)
if (cpus == pl->existingCPUs)
return;
pl->cpuCount = cpus;
pl->existingCPUs = cpus;
// TODO: support offline CPUs and hot swapping
pl->activeCPUs = pl->existingCPUs;
free(this->percpu);
free(this->values);
@ -79,7 +82,7 @@ void ProcessList_delete(ProcessList* pl) {
PCPProcessList* this = (PCPProcessList*) pl;
ProcessList_done(pl);
free(this->values);
for (unsigned int i = 0; i < pl->cpuCount; i++)
for (unsigned int i = 0; i < pl->existingCPUs; i++)
free(this->percpu[i]);
free(this->percpu);
free(this->cpu);
@ -371,7 +374,7 @@ static bool PCPProcessList_updateProcesses(PCPProcessList* this, double period,
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);
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);
@ -539,7 +542,7 @@ static void PCPProcessList_updateAllCPUTime(PCPProcessList* this, Metric metric,
static void PCPProcessList_updatePerCPUTime(PCPProcessList* this, Metric metric, CPUMetric cpumetric)
{
int cpus = this->super.cpuCount;
int cpus = this->super.existingCPUs;
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++)
@ -548,7 +551,7 @@ static void PCPProcessList_updatePerCPUTime(PCPProcessList* this, Metric metric,
static void PCPProcessList_updatePerCPUReal(PCPProcessList* this, Metric metric, CPUMetric cpumetric)
{
int cpus = this->super.cpuCount;
int cpus = this->super.existingCPUs;
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++)
@ -608,7 +611,7 @@ static void PCPProcessList_updateHeader(ProcessList* super, const Settings* sett
PCPProcessList_updateAllCPUTime(this, PCP_CPU_GUEST, CPU_GUEST_TIME);
PCPProcessList_deriveCPUTime(this->cpu);
for (unsigned int i = 0; i < super->cpuCount; i++)
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);
@ -619,7 +622,7 @@ static void PCPProcessList_updateHeader(ProcessList* super, const Settings* sett
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->cpuCount; i++)
for (unsigned int i = 0; i < super->existingCPUs; i++)
PCPProcessList_deriveCPUTime(this->percpu[i]);
if (settings->showCPUFrequency)

View File

@ -184,7 +184,7 @@ int Platform_getMaxPid() {
double Platform_setCPUValues(Meter* this, unsigned int cpu) {
const SolarisProcessList* spl = (const SolarisProcessList*) this->pl;
unsigned int cpus = this->pl->cpuCount;
unsigned int cpus = this->pl->activeCPUs;
const CPUData* cpuData = NULL;
if (cpus == 1) {

View File

@ -59,20 +59,24 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
CRT_fatalError("Cannot get pagesize by sysconf(_SC_PAGESIZE)");
pageSizeKB = pageSize / 1024;
pl->cpuCount = sysconf(_SC_NPROCESSORS_ONLN);
if (pl->cpuCount == (unsigned int)-1)
pl->activeCPUs = sysconf(_SC_NPROCESSORS_ONLN);
if (pl->activeCPUs == (unsigned int)-1)
CRT_fatalError("Cannot get CPU count by sysconf(_SC_NPROCESSORS_ONLN)");
else if (pl->cpuCount == 1)
else if (pl->activeCPUs == 1)
spl->cpus = xRealloc(spl->cpus, sizeof(CPUData));
else
spl->cpus = xRealloc(spl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
spl->cpus = xRealloc(spl->cpus, (pl->activeCPUs + 1) * sizeof(CPUData));
/* TODO: support offline CPUs and hot swapping
* pl->existingCPUs = sysconf(_SC_NPROCESSORS_CONF) */
pl->existingCPUs = pl->activeCPUs;
return pl;
}
static inline void SolarisProcessList_scanCPUTime(ProcessList* pl) {
const SolarisProcessList* spl = (SolarisProcessList*) pl;
unsigned int cpus = pl->cpuCount;
unsigned int cpus = pl->existingCPUs;
kstat_t* cpuinfo = NULL;
kstat_named_t* idletime = NULL;
kstat_named_t* intrtime = NULL;

View File

@ -18,7 +18,8 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
ProcessList* this = xCalloc(1, sizeof(ProcessList));
ProcessList_init(this, Class(Process), usersTable, dynamicMeters, pidMatchList, userId);
this->cpuCount = 1;
this->existingCPUs = 1;
this->activeCPUs = 1;
return this;
}