status-go/vendor/github.com/shirou/gopsutil/cpu/cpu_solaris.go

282 lines
7.9 KiB
Go

package cpu
import (
"context"
"errors"
"fmt"
"os/exec"
"regexp"
"runtime"
"sort"
"strconv"
"strings"
"github.com/tklauser/go-sysconf"
)
var ClocksPerSec = float64(128)
func init() {
clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
// ignore errors
if err == nil {
ClocksPerSec = float64(clkTck)
}
}
//sum all values in a float64 map with float64 keys
func msum(x map[float64]float64) float64 {
total := 0.0
for _, y := range x {
total += y
}
return total
}
func Times(percpu bool) ([]TimesStat, error) {
return TimesWithContext(context.Background(), percpu)
}
func TimesWithContext(ctx context.Context, percpu bool) ([]TimesStat, error) {
kstatSys, err := exec.LookPath("kstat")
if err != nil {
return nil, fmt.Errorf("cannot find kstat: %s", err)
}
cpu := make(map[float64]float64)
idle := make(map[float64]float64)
user := make(map[float64]float64)
kern := make(map[float64]float64)
iowt := make(map[float64]float64)
//swap := make(map[float64]float64)
kstatSysOut, err := invoke.CommandWithContext(ctx, kstatSys, "-p", "cpu_stat:*:*:/^idle$|^user$|^kernel$|^iowait$|^swap$/")
if err != nil {
return nil, fmt.Errorf("cannot execute kstat: %s", err)
}
re := regexp.MustCompile(`[:\s]+`)
for _, line := range strings.Split(string(kstatSysOut), "\n") {
fields := re.Split(line, -1)
if fields[0] != "cpu_stat" {
continue
}
cpuNumber, err := strconv.ParseFloat(fields[1], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse cpu number: %s", err)
}
cpu[cpuNumber] = cpuNumber
switch fields[3] {
case "idle":
idle[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse idle: %s", err)
}
case "user":
user[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse user: %s", err)
}
case "kernel":
kern[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse kernel: %s", err)
}
case "iowait":
iowt[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse iowait: %s", err)
}
//not sure how this translates, don't report, add to kernel, something else?
/*case "swap":
swap[cpuNumber], err = strconv.ParseFloat(fields[4], 64)
if err != nil {
return nil, fmt.Errorf("cannot parse swap: %s", err)
} */
}
}
ret := make([]TimesStat, 0, len(cpu))
if percpu {
for _, c := range cpu {
ct := &TimesStat{
CPU: fmt.Sprintf("cpu%d", int(cpu[c])),
Idle: idle[c] / ClocksPerSec,
User: user[c] / ClocksPerSec,
System: kern[c] / ClocksPerSec,
Iowait: iowt[c] / ClocksPerSec,
}
ret = append(ret, *ct)
}
} else {
ct := &TimesStat{
CPU: "cpu-total",
Idle: msum(idle) / ClocksPerSec,
User: msum(user) / ClocksPerSec,
System: msum(kern) / ClocksPerSec,
Iowait: msum(iowt) / ClocksPerSec,
}
ret = append(ret, *ct)
}
return ret, nil
}
func Info() ([]InfoStat, error) {
return InfoWithContext(context.Background())
}
func InfoWithContext(ctx context.Context) ([]InfoStat, error) {
psrInfo, err := exec.LookPath("psrinfo")
if err != nil {
return nil, fmt.Errorf("cannot find psrinfo: %s", err)
}
psrInfoOut, err := invoke.CommandWithContext(ctx, psrInfo, "-p", "-v")
if err != nil {
return nil, fmt.Errorf("cannot execute psrinfo: %s", err)
}
isaInfo, err := exec.LookPath("isainfo")
if err != nil {
return nil, fmt.Errorf("cannot find isainfo: %s", err)
}
isaInfoOut, err := invoke.CommandWithContext(ctx, isaInfo, "-b", "-v")
if err != nil {
return nil, fmt.Errorf("cannot execute isainfo: %s", err)
}
procs, err := parseProcessorInfo(string(psrInfoOut))
if err != nil {
return nil, fmt.Errorf("error parsing psrinfo output: %s", err)
}
flags, err := parseISAInfo(string(isaInfoOut))
if err != nil {
return nil, fmt.Errorf("error parsing isainfo output: %s", err)
}
result := make([]InfoStat, 0, len(flags))
for _, proc := range procs {
procWithFlags := proc
procWithFlags.Flags = flags
result = append(result, procWithFlags)
}
return result, nil
}
var flagsMatch = regexp.MustCompile(`[\w\.]+`)
func parseISAInfo(cmdOutput string) ([]string, error) {
words := flagsMatch.FindAllString(cmdOutput, -1)
// Sanity check the output
if len(words) < 4 || words[1] != "bit" || words[3] != "applications" {
return nil, errors.New("attempted to parse invalid isainfo output")
}
flags := make([]string, len(words)-4)
for i, val := range words[4:] {
flags[i] = val
}
sort.Strings(flags)
return flags, nil
}
var psrInfoMatch = regexp.MustCompile(`The physical processor has (?:([\d]+) virtual processors? \(([\d-]+)\)|([\d]+) cores and ([\d]+) virtual processors[^\n]+)\n(?:\s+ The core has.+\n)*\s+.+ \((\w+) ([\S]+) family (.+) model (.+) step (.+) clock (.+) MHz\)\n[\s]*(.*)`)
const (
psrNumCoresOffset = 1
psrNumCoresHTOffset = 3
psrNumHTOffset = 4
psrVendorIDOffset = 5
psrFamilyOffset = 7
psrModelOffset = 8
psrStepOffset = 9
psrClockOffset = 10
psrModelNameOffset = 11
)
func parseProcessorInfo(cmdOutput string) ([]InfoStat, error) {
matches := psrInfoMatch.FindAllStringSubmatch(cmdOutput, -1)
var infoStatCount int32
result := make([]InfoStat, 0, len(matches))
for physicalIndex, physicalCPU := range matches {
var step int32
var clock float64
if physicalCPU[psrStepOffset] != "" {
stepParsed, err := strconv.ParseInt(physicalCPU[psrStepOffset], 10, 32)
if err != nil {
return nil, fmt.Errorf("cannot parse value %q for step as 32-bit integer: %s", physicalCPU[9], err)
}
step = int32(stepParsed)
}
if physicalCPU[psrClockOffset] != "" {
clockParsed, err := strconv.ParseInt(physicalCPU[psrClockOffset], 10, 64)
if err != nil {
return nil, fmt.Errorf("cannot parse value %q for clock as 32-bit integer: %s", physicalCPU[10], err)
}
clock = float64(clockParsed)
}
var err error
var numCores int64
var numHT int64
switch {
case physicalCPU[psrNumCoresOffset] != "":
numCores, err = strconv.ParseInt(physicalCPU[psrNumCoresOffset], 10, 32)
if err != nil {
return nil, fmt.Errorf("cannot parse value %q for core count as 32-bit integer: %s", physicalCPU[1], err)
}
for i := 0; i < int(numCores); i++ {
result = append(result, InfoStat{
CPU: infoStatCount,
PhysicalID: strconv.Itoa(physicalIndex),
CoreID: strconv.Itoa(i),
Cores: 1,
VendorID: physicalCPU[psrVendorIDOffset],
ModelName: physicalCPU[psrModelNameOffset],
Family: physicalCPU[psrFamilyOffset],
Model: physicalCPU[psrModelOffset],
Stepping: step,
Mhz: clock,
})
infoStatCount++
}
case physicalCPU[psrNumCoresHTOffset] != "":
numCores, err = strconv.ParseInt(physicalCPU[psrNumCoresHTOffset], 10, 32)
if err != nil {
return nil, fmt.Errorf("cannot parse value %q for core count as 32-bit integer: %s", physicalCPU[3], err)
}
numHT, err = strconv.ParseInt(physicalCPU[psrNumHTOffset], 10, 32)
if err != nil {
return nil, fmt.Errorf("cannot parse value %q for hyperthread count as 32-bit integer: %s", physicalCPU[4], err)
}
for i := 0; i < int(numCores); i++ {
result = append(result, InfoStat{
CPU: infoStatCount,
PhysicalID: strconv.Itoa(physicalIndex),
CoreID: strconv.Itoa(i),
Cores: int32(numHT) / int32(numCores),
VendorID: physicalCPU[psrVendorIDOffset],
ModelName: physicalCPU[psrModelNameOffset],
Family: physicalCPU[psrFamilyOffset],
Model: physicalCPU[psrModelOffset],
Stepping: step,
Mhz: clock,
})
infoStatCount++
}
default:
return nil, errors.New("values for cores with and without hyperthreading are both set")
}
}
return result, nil
}
func CountsWithContext(ctx context.Context, logical bool) (int, error) {
return runtime.NumCPU(), nil
}