diff options
author | Nathan Scott <nathans@redhat.com> | 2023-05-02 16:56:18 +1000 |
---|---|---|
committer | Nathan Scott <nathans@redhat.com> | 2023-05-08 13:06:38 +1000 |
commit | 72235d8e098d9d79029dca65122605741e1aafad (patch) | |
tree | 96593b8bd9dc95dc5ab321bd363d36351cbd0a99 /freebsd/FreeBSDMachine.c | |
parent | 0bdade1b6cb40c5bd374a93ac0489058a7421bb5 (diff) |
Adapt platform code for the new Machine base class
Move host-centric data to new derived <Platform>Machine classes,
separate from process-list-centric data.
Diffstat (limited to 'freebsd/FreeBSDMachine.c')
-rw-r--r-- | freebsd/FreeBSDMachine.c | 396 |
1 files changed, 396 insertions, 0 deletions
diff --git a/freebsd/FreeBSDMachine.c b/freebsd/FreeBSDMachine.c new file mode 100644 index 00000000..b8d5d87f --- /dev/null +++ b/freebsd/FreeBSDMachine.c @@ -0,0 +1,396 @@ +/* +htop - FreeBSDMachine.c +(C) 2014 Hisham H. Muhammad +Released under the GNU GPLv2+, see the COPYING file +in the source distribution for its full text. +*/ + +#include "config.h" // IWYU pragma: keep + +#include "freebsd/FreeBSDMachine.h" + +#include <assert.h> +#include <limits.h> +#include <math.h> +#include <stdlib.h> +#include <string.h> +#include <sys/_iovec.h> +#include <sys/errno.h> +#include <sys/param.h> // needs to be included before <sys/jail.h> for MAXPATHLEN +#include <sys/jail.h> +#include <sys/priority.h> +#include <sys/proc.h> +#include <sys/resource.h> +#include <sys/sysctl.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/user.h> +#include <sys/vmmeter.h> + +#include "CRT.h" +#include "Compat.h" +#include "Macros.h" +#include "Object.h" +#include "Scheduling.h" +#include "Settings.h" +#include "XUtils.h" +#include "generic/openzfs_sysctl.h" +#include "zfs/ZfsArcStats.h" + + +static int MIB_hw_physmem[2]; +static int MIB_vm_stats_vm_v_page_count[4]; + +static int MIB_vm_stats_vm_v_wire_count[4]; +static int MIB_vm_stats_vm_v_active_count[4]; +static int MIB_vm_stats_vm_v_cache_count[4]; +static int MIB_vm_stats_vm_v_inactive_count[4]; +static int MIB_vm_stats_vm_v_free_count[4]; +static int MIB_vm_vmtotal[2]; + +static int MIB_vfs_bufspace[2]; + +static int MIB_kern_cp_time[2]; +static int MIB_kern_cp_times[2]; + +Machine* Machine_new(UsersTable* usersTable, uid_t userId) { + FreeBSDMachine* this = xCalloc(1, sizeof(FreeBSDMachine)); + Machine* super = &this->super; + char errbuf[_POSIX2_LINE_MAX]; + size_t len; + + Machine_init(this, usersTable, userId); + + // physical memory in system: hw.physmem + // physical page size: hw.pagesize + // usable pagesize : vm.stats.vm.v_page_size + len = 2; sysctlnametomib("hw.physmem", MIB_hw_physmem, &len); + + len = sizeof(this->pageSize); + if (sysctlbyname("vm.stats.vm.v_page_size", &this->pageSize, &len, NULL, 0) == -1) + CRT_fatalError("Cannot get pagesize by sysctl"); + this->pageSizeKb = this->pageSize / ONE_K; + + // usable page count vm.stats.vm.v_page_count + // actually usable memory : vm.stats.vm.v_page_count * vm.stats.vm.v_page_size + len = 4; sysctlnametomib("vm.stats.vm.v_page_count", MIB_vm_stats_vm_v_page_count, &len); + + len = 4; sysctlnametomib("vm.stats.vm.v_wire_count", MIB_vm_stats_vm_v_wire_count, &len); + len = 4; sysctlnametomib("vm.stats.vm.v_active_count", MIB_vm_stats_vm_v_active_count, &len); + len = 4; sysctlnametomib("vm.stats.vm.v_cache_count", MIB_vm_stats_vm_v_cache_count, &len); + len = 4; sysctlnametomib("vm.stats.vm.v_inactive_count", MIB_vm_stats_vm_v_inactive_count, &len); + len = 4; sysctlnametomib("vm.stats.vm.v_free_count", MIB_vm_stats_vm_v_free_count, &len); + len = 2; sysctlnametomib("vm.vmtotal", MIB_vm_vmtotal, &len); + + len = 2; sysctlnametomib("vfs.bufspace", MIB_vfs_bufspace, &len); + + openzfs_sysctl_init(&this->zfs); + openzfs_sysctl_updateArcStats(&this->zfs); + + int smp = 0; + len = sizeof(smp); + + if (sysctlbyname("kern.smp.active", &smp, &len, NULL, 0) != 0 || len != sizeof(smp)) { + smp = 0; + } + + int cpus = 1; + len = sizeof(cpus); + + if (smp) { + int err = sysctlbyname("kern.smp.cpus", &cpus, &len, NULL, 0); + if (err) { + cpus = 1; + } + } else { + cpus = 1; + } + + size_t sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES; + len = 2; sysctlnametomib("kern.cp_time", MIB_kern_cp_time, &len); + this->cp_time_o = xCalloc(CPUSTATES, sizeof(unsigned long)); + this->cp_time_n = xCalloc(CPUSTATES, sizeof(unsigned long)); + len = sizeof_cp_time_array; + + // fetch initial single (or average) CPU clicks from kernel + sysctl(MIB_kern_cp_time, 2, this->cp_time_o, &len, NULL, 0); + + // on smp box, fetch rest of initial CPU's clicks + if (cpus > 1) { + len = 2; sysctlnametomib("kern.cp_times", MIB_kern_cp_times, &len); + this->cp_times_o = xCalloc(cpus, sizeof_cp_time_array); + this->cp_times_n = xCalloc(cpus, sizeof_cp_time_array); + len = cpus * sizeof_cp_time_array; + sysctl(MIB_kern_cp_times, 2, this->cp_times_o, &len, NULL, 0); + } + + super->existingCPUs = MAXIMUM(cpus, 1); + // TODO: support offline CPUs and hot swapping + super->activeCPUs = super->existingCPUs; + + if (cpus == 1 ) { + this->cpus = xRealloc(this->cpus, sizeof(CPUData)); + } else { + // on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well) + this->cpus = xRealloc(this->cpus, (super->existingCPUs + 1) * sizeof(CPUData)); + } + + len = sizeof(this->kernelFScale); + if (sysctlbyname("kern.fscale", &this->kernelFScale, &len, NULL, 0) == -1) { + //sane default for kernel provided CPU percentage scaling, at least on x86 machines, in case this sysctl call failed + this->kernelFScale = 2048; + } + + this->kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, errbuf); + if (this->kd == NULL) { + CRT_fatalError("kvm_openfiles() failed"); + } + + return this; +} + +void Machine_delete(Machine* super) { + FreeBSDMachine* this = (FreeBSDMachine*) super; + + ProcessList_done(this); + + if (this->kd) { + kvm_close(this->kd); + } + + free(this->cp_time_o); + free(this->cp_time_n); + free(this->cp_times_o); + free(this->cp_times_n); + free(this->cpus); + + free(this); +} + +static inline void FreeBSDMachine_scanCPU(Machine* super) { + const FreeBSDMachine* this = (FreeBSDMachine*) super; + + unsigned int cpus = super->existingCPUs; // actual CPU count + unsigned int maxcpu = cpus; // max iteration (in case we have average + smp) + int cp_times_offset; + + assert(cpus > 0); + + size_t sizeof_cp_time_array; + + unsigned long* cp_time_n; // old clicks state + unsigned long* cp_time_o; // current clicks state + + unsigned long cp_time_d[CPUSTATES]; + double cp_time_p[CPUSTATES]; + + // get averages or single CPU clicks + sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES; + sysctl(MIB_kern_cp_time, 2, this->cp_time_n, &sizeof_cp_time_array, NULL, 0); + + // get rest of CPUs + if (cpus > 1) { + // on smp systems FreeBSD kernel concats all CPU states into one long array in + // kern.cp_times sysctl OID + // we store averages in this->cpus[0], and actual cores after that + maxcpu = cpus + 1; + sizeof_cp_time_array = cpus * sizeof(unsigned long) * CPUSTATES; + sysctl(MIB_kern_cp_times, 2, this->cp_times_n, &sizeof_cp_time_array, NULL, 0); + } + + for (unsigned int i = 0; i < maxcpu; i++) { + if (cpus == 1) { + // single CPU box + cp_time_n = this->cp_time_n; + cp_time_o = this->cp_time_o; + } else { + if (i == 0 ) { + // average + cp_time_n = this->cp_time_n; + cp_time_o = this->cp_time_o; + } else { + // specific smp cores + cp_times_offset = i - 1; + cp_time_n = this->cp_times_n + (cp_times_offset * CPUSTATES); + cp_time_o = this->cp_times_o + (cp_times_offset * CPUSTATES); + } + } + + // diff old vs new + unsigned long long total_o = 0; + unsigned long long total_n = 0; + unsigned long long total_d = 0; + for (int s = 0; s < CPUSTATES; s++) { + cp_time_d[s] = cp_time_n[s] - cp_time_o[s]; + total_o += cp_time_o[s]; + total_n += cp_time_n[s]; + } + + // totals + total_d = total_n - total_o; + if (total_d < 1 ) { + total_d = 1; + } + + // save current state as old and calc percentages + for (int s = 0; s < CPUSTATES; ++s) { + cp_time_o[s] = cp_time_n[s]; + cp_time_p[s] = ((double)cp_time_d[s]) / ((double)total_d) * 100; + } + + CPUData* cpuData = &(this->cpus[i]); + cpuData->userPercent = cp_time_p[CP_USER]; + cpuData->nicePercent = cp_time_p[CP_NICE]; + cpuData->systemPercent = cp_time_p[CP_SYS]; + cpuData->irqPercent = cp_time_p[CP_INTR]; + cpuData->systemAllPercent = cp_time_p[CP_SYS] + cp_time_p[CP_INTR]; + // this one is not really used + //cpuData->idlePercent = cp_time_p[CP_IDLE]; + + cpuData->temperature = NAN; + cpuData->frequency = NAN; + + const int coreId = (cpus == 1) ? 0 : ((int)i - 1); + if (coreId < 0) + continue; + + // TODO: test with hyperthreading and multi-cpu systems + if (super->settings->showCPUTemperature) { + int temperature; + size_t len = sizeof(temperature); + char mibBuffer[32]; + xSnprintf(mibBuffer, sizeof(mibBuffer), "dev.cpu.%d.temperature", coreId); + int r = sysctlbyname(mibBuffer, &temperature, &len, NULL, 0); + if (r == 0) + cpuData->temperature = (double)(temperature - 2732) / 10.0; // convert from deci-Kelvin to Celsius + } + + // TODO: test with hyperthreading and multi-cpu systems + if (super->settings->showCPUFrequency) { + int frequency; + size_t len = sizeof(frequency); + char mibBuffer[32]; + xSnprintf(mibBuffer, sizeof(mibBuffer), "dev.cpu.%d.freq", coreId); + int r = sysctlbyname(mibBuffer, &frequency, &len, NULL, 0); + if (r == 0) + cpuData->frequency = frequency; // keep in MHz + } + } + + // calculate max temperature and avg frequency for average meter and + // propagate frequency to all cores if only supplied for CPU 0 + if (cpus > 1) { + if (super->settings->showCPUTemperature) { + double maxTemp = NAN; + for (unsigned int i = 1; i < maxcpu; i++) { + const double coreTemp = this->cpus[i].temperature; + if (isnan(coreTemp)) + continue; + + maxTemp = MAXIMUM(maxTemp, coreTemp); + } + + this->cpus[0].temperature = maxTemp; + } + + if (super->settings->showCPUFrequency) { + const double coreZeroFreq = this->cpus[1].frequency; + double freqSum = coreZeroFreq; + if (!isnan(coreZeroFreq)) { + for (unsigned int i = 2; i < maxcpu; i++) { + if (isnan(this->cpus[i].frequency)) + this->cpus[i].frequency = coreZeroFreq; + + freqSum += this->cpus[i].frequency; + } + + this->cpus[0].frequency = freqSum / (maxcpu - 1); + } + } + } +} + +static void FreeBSDMachine_scanMemoryInfo(Machine* super) { + FreeBSDMachine* this = (FreeBSDMachine*) super; + + // @etosan: + // memory counter relationships seem to be these: + // total = active + wired + inactive + cache + free + // htop_used (unavail to anybody) = active + wired + // htop_cache (for cache meter) = buffers + cache + // user_free (avail to procs) = buffers + inactive + cache + free + // + // with ZFS ARC situation becomes bit muddled, as ARC behaves like "user_free" + // and belongs into cache, but is reported as wired by kernel + // + // htop_used = active + (wired - arc) + // htop_cache = buffers + cache + arc + u_long totalMem; + u_int memActive, memWire, cachedMem; + long buffersMem; + size_t len; + struct vmtotal vmtotal; + + //disabled for now, as it is always smaller than phycal amount of memory... + //...to avoid "where is my memory?" questions + //sysctl(MIB_vm_stats_vm_v_page_count, 4, &(super->totalMem), &len, NULL, 0); + //super->totalMem *= this->pageSizeKb; + len = sizeof(totalMem); + sysctl(MIB_hw_physmem, 2, &(totalMem), &len, NULL, 0); + totalMem /= 1024; + super->totalMem = totalMem; + + len = sizeof(memActive); + sysctl(MIB_vm_stats_vm_v_active_count, 4, &(memActive), &len, NULL, 0); + memActive *= this->pageSizeKb; + this->memActive = memActive; + + len = sizeof(memWire); + sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(memWire), &len, NULL, 0); + memWire *= this->pageSizeKb; + this->memWire = memWire; + + len = sizeof(buffersMem); + sysctl(MIB_vfs_bufspace, 2, &(buffersMem), &len, NULL, 0); + buffersMem /= 1024; + super->buffersMem = buffersMem; + + len = sizeof(cachedMem); + sysctl(MIB_vm_stats_vm_v_cache_count, 4, &(cachedMem), &len, NULL, 0); + cachedMem *= this->pageSizeKb; + super->cachedMem = cachedMem; + + len = sizeof(vmtotal); + sysctl(MIB_vm_vmtotal, 2, &(vmtotal), &len, NULL, 0); + super->sharedMem = vmtotal.t_rmshr * this->pageSizeKb; + + super->usedMem = this->memActive + this->memWire; + + struct kvm_swap swap[16]; + int nswap = kvm_getswapinfo(this->kd, swap, ARRAYSIZE(swap), 0); + super->totalSwap = 0; + super->usedSwap = 0; + for (int i = 0; i < nswap; i++) { + super->totalSwap += swap[i].ksw_total; + super->usedSwap += swap[i].ksw_used; + } + super->totalSwap *= this->pageSizeKb; + super->usedSwap *= this->pageSizeKb; +} + +void Machine_scan(Machine* super) { + FreeBSDMachine* this = (FreeBSDMachine*) super; + + openzfs_sysctl_updateArcStats(&this->zfs); + FreeBSDMachine_scanMemoryInfo(super); + FreeBSDMachine_scanCPU(super); +} + +bool Machine_isCPUonline(const Machine* host, unsigned int id) { + assert(id < host->existingCPUs); + + // TODO: support offline CPUs and hot swapping + (void) host; (void) id; + + return true; +} |