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Rework CPU counting

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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
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2
solaris/Platform.c
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@ -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) {

14
solaris/SolarisProcessList.c
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;