mirror of
https://github.com/prometheus/node_exporter.git
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682 lines
28 KiB
Go
682 lines
28 KiB
Go
// +build linux
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package perf
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import (
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"encoding/binary"
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"runtime"
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"syscall"
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"unsafe"
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"golang.org/x/sys/unix"
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)
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var (
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// EventAttrSize is the size of a PerfEventAttr
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EventAttrSize = uint32(unsafe.Sizeof(unix.PerfEventAttr{}))
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)
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// profileFn is a helper function to profile a function.
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func profileFn(eventAttr *unix.PerfEventAttr, f func() error) (*ProfileValue, error) {
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runtime.LockOSThread()
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defer runtime.UnlockOSThread()
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fd, err := unix.PerfEventOpen(
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eventAttr,
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unix.Gettid(),
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-1,
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-1,
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0,
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)
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if err != nil {
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return nil, err
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}
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if err := unix.IoctlSetInt(fd, unix.PERF_EVENT_IOC_RESET, 0); err != nil {
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return nil, err
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}
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if err := unix.IoctlSetInt(fd, unix.PERF_EVENT_IOC_ENABLE, 0); err != nil {
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return nil, err
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}
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if err := f(); err != nil {
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return nil, err
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}
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if err := unix.IoctlSetInt(fd, unix.PERF_EVENT_IOC_DISABLE, 0); err != nil {
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return nil, err
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}
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buf := make([]byte, 24)
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if _, err := syscall.Read(fd, buf); err != nil {
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return nil, err
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}
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return &ProfileValue{
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Value: binary.LittleEndian.Uint64(buf[0:8]),
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TimeEnabled: binary.LittleEndian.Uint64(buf[8:16]),
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TimeRunning: binary.LittleEndian.Uint64(buf[16:24]),
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}, unix.Close(fd)
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}
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// CPUInstructions is used to profile a function and return the number of CPU instructions.
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// Note that it will call runtime.LockOSThread to ensure accurate profilng.
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func CPUInstructions(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_INSTRUCTIONS,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPUInstructionsEventAttr returns a unix.PerfEventAttr configured for CPUInstructions.
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func CPUInstructionsEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_INSTRUCTIONS,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CPUCycles is used to profile a function and return the number of CPU cycles.
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// Note that it will call runtime.LockOSThread to ensure accurate profilng.
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func CPUCycles(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CPU_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPUCyclesEventAttr returns a unix.PerfEventAttr configured for CPUCycles.
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func CPUCyclesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CPU_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CacheRef is used to profile a function and return the number of cache
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// references. Note that it will call runtime.LockOSThread to ensure accurate
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// profilng.
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func CacheRef(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CACHE_REFERENCES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CacheRefEventAttr returns a unix.PerfEventAttr configured for CacheRef.
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func CacheRefEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CACHE_REFERENCES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CacheMiss is used to profile a function and return the number of cache
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// misses. Note that it will call runtime.LockOSThread to ensure accurate
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// profilng.
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func CacheMiss(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CACHE_MISSES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CacheMissEventAttr returns a unix.PerfEventAttr configured for CacheMisses.
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func CacheMissEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_CACHE_MISSES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// BusCycles is used to profile a function and return the number of bus
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// cycles. Note that it will call runtime.LockOSThread to ensure accurate
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// profilng.
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func BusCycles(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_BUS_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// BusCyclesEventAttr returns a unix.PerfEventAttr configured for BusCycles.
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func BusCyclesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_BUS_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// StalledFrontendCycles is used to profile a function and return the number of
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// stalled frontend cycles. Note that it will call runtime.LockOSThread to
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// ensure accurate profilng.
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func StalledFrontendCycles(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// StalledFrontendCyclesEventAttr returns a unix.PerfEventAttr configured for StalledFrontendCycles.
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func StalledFrontendCyclesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// StalledBackendCycles is used to profile a function and return the number of
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// stalled backend cycles. Note that it will call runtime.LockOSThread to
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// ensure accurate profilng.
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func StalledBackendCycles(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// StalledBackendCyclesEventAttr returns a unix.PerfEventAttr configured for StalledBackendCycles.
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func StalledBackendCyclesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CPURefCycles is used to profile a function and return the number of CPU
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// references cycles which are not affected by frequency scaling. Note that it
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// will call runtime.LockOSThread to ensure accurate profilng.
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func CPURefCycles(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_REF_CPU_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPURefCyclesEventAttr returns a unix.PerfEventAttr configured for CPURefCycles.
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func CPURefCyclesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_HARDWARE,
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Config: unix.PERF_COUNT_HW_REF_CPU_CYCLES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CPUClock is used to profile a function and return the CPU clock timer. Note
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// that it will call runtime.LockOSThread to ensure accurate profilng.
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func CPUClock(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CPU_CLOCK,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPUClockEventAttr returns a unix.PerfEventAttr configured for CPUClock.
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func CPUClockEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CPU_CLOCK,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CPUTaskClock is used to profile a function and return the CPU clock timer
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// for the running task. Note that it will call runtime.LockOSThread to ensure
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// accurate profilng.
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func CPUTaskClock(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_TASK_CLOCK,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPUTaskClockEventAttr returns a unix.PerfEventAttr configured for CPUTaskClock.
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func CPUTaskClockEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_TASK_CLOCK,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// PageFaults is used to profile a function and return the number of page
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// faults. Note that it will call runtime.LockOSThread to ensure accurate
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// profilng.
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func PageFaults(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_PAGE_FAULTS,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// PageFaultsEventAttr returns a unix.PerfEventAttr configured for PageFaults.
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func PageFaultsEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_PAGE_FAULTS,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// ContextSwitches is used to profile a function and return the number of
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// context switches. Note that it will call runtime.LockOSThread to ensure
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// accurate profilng.
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func ContextSwitches(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CONTEXT_SWITCHES,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// ContextSwitchesEventAttr returns a unix.PerfEventAttr configured for ContextSwitches.
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func ContextSwitchesEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CONTEXT_SWITCHES,
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Size: EventAttrSize,
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Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// CPUMigrations is used to profile a function and return the number of times
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// the thread has been migrated to a new CPU. Note that it will call
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// runtime.LockOSThread to ensure accurate profilng.
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func CPUMigrations(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CPU_MIGRATIONS,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// CPUMigrationsEventAttr returns a unix.PerfEventAttr configured for CPUMigrations.
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func CPUMigrationsEventAttr() unix.PerfEventAttr {
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return unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_CPU_MIGRATIONS,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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}
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// MinorPageFaults is used to profile a function and return the number of minor
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// page faults. Note that it will call runtime.LockOSThread to ensure accurate
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// profilng.
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func MinorPageFaults(f func() error) (*ProfileValue, error) {
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eventAttr := &unix.PerfEventAttr{
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Type: unix.PERF_TYPE_SOFTWARE,
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Config: unix.PERF_COUNT_SW_PAGE_FAULTS_MIN,
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Size: EventAttrSize,
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Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
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Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
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}
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return profileFn(eventAttr, f)
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}
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// MinorPageFaultsEventAttr returns a unix.PerfEventAttr configured for MinorPageFaults.
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func MinorPageFaultsEventAttr() unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_PAGE_FAULTS_MIN,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// MajorPageFaults is used to profile a function and return the number of major
|
|
// page faults. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func MajorPageFaults(f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_PAGE_FAULTS_MAJ,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// MajorPageFaultsEventAttr returns a unix.PerfEventAttr configured for MajorPageFaults.
|
|
func MajorPageFaultsEventAttr() unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_PAGE_FAULTS_MAJ,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// AlignmentFaults is used to profile a function and return the number of alignment
|
|
// faults. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func AlignmentFaults(f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_ALIGNMENT_FAULTS,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// AlignmentFaultsEventAttr returns a unix.PerfEventAttr configured for AlignmentFaults.
|
|
func AlignmentFaultsEventAttr() unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_ALIGNMENT_FAULTS,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// EmulationFaults is used to profile a function and return the number of emulation
|
|
// faults. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func EmulationFaults(f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_EMULATION_FAULTS,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// EmulationFaultsEventAttr returns a unix.PerfEventAttr configured for EmulationFaults.
|
|
func EmulationFaultsEventAttr() unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_SOFTWARE,
|
|
Config: unix.PERF_COUNT_SW_EMULATION_FAULTS,
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// L1Data is used to profile a function and the L1 data cache faults. Use
|
|
// PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func L1Data(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_L1D) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// L1DataEventAttr returns a unix.PerfEventAttr configured for L1Data.
|
|
func L1DataEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_L1D) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// L1Instructions is used to profile a function for the instruction level L1
|
|
// cache. Use PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func L1Instructions(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_L1I) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// L1InstructionsEventAttr returns a unix.PerfEventAttr configured for L1Instructions.
|
|
func L1InstructionsEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_L1I) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// LLCache is used to profile a function and return the number of emulation
|
|
// PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func LLCache(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_LL) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// LLCacheEventAttr returns a unix.PerfEventAttr configured for LLCache.
|
|
func LLCacheEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_LL) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// DataTLB is used to profile the data TLB. Use PERF_COUNT_HW_CACHE_OP_READ,
|
|
// PERF_COUNT_HW_CACHE_OP_WRITE, or PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt
|
|
// and PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for
|
|
// the result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func DataTLB(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_DTLB) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// DataTLBEventAttr returns a unix.PerfEventAttr configured for DataTLB.
|
|
func DataTLBEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_DTLB) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// InstructionTLB is used to profile the instruction TLB. Use
|
|
// PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func InstructionTLB(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_ITLB) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// InstructionTLBEventAttr returns a unix.PerfEventAttr configured for InstructionTLB.
|
|
func InstructionTLBEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_ITLB) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
|
|
}
|
|
|
|
// BPU is used to profile a function for the Branch Predictor Unit.
|
|
// Use PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func BPU(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_BPU) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// BPUEventAttr returns a unix.PerfEventAttr configured for BPU events.
|
|
func BPUEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_BPU) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|
|
|
|
// NodeCache is used to profile a function for NUMA operations. Use Use
|
|
// PERF_COUNT_HW_CACHE_OP_READ, PERF_COUNT_HW_CACHE_OP_WRITE, or
|
|
// PERF_COUNT_HW_CACHE_OP_PREFETCH for the opt and
|
|
// PERF_COUNT_HW_CACHE_RESULT_ACCESS or PERF_COUNT_HW_CACHE_RESULT_MISS for the
|
|
// result. Note that it will call runtime.LockOSThread to ensure accurate
|
|
// profilng.
|
|
func NodeCache(op, result int, f func() error) (*ProfileValue, error) {
|
|
eventAttr := &unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_NODE) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitDisabled | unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
return profileFn(eventAttr, f)
|
|
}
|
|
|
|
// NodeCacheEventAttr returns a unix.PerfEventAttr configured for NUMA cache operations.
|
|
func NodeCacheEventAttr(op, result int) unix.PerfEventAttr {
|
|
return unix.PerfEventAttr{
|
|
Type: unix.PERF_TYPE_HW_CACHE,
|
|
Config: uint64((unix.PERF_COUNT_HW_CACHE_NODE) | (op << 8) | (result << 16)),
|
|
Size: EventAttrSize,
|
|
Bits: unix.PerfBitExcludeKernel | unix.PerfBitExcludeHv,
|
|
Read_format: unix.PERF_FORMAT_TOTAL_TIME_RUNNING | unix.PERF_FORMAT_TOTAL_TIME_ENABLED,
|
|
}
|
|
}
|