Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

cpufreq for apple silicon macs #999

Closed
wants to merge 2 commits into from
Closed

cpufreq for apple silicon macs #999

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
61b1fce
support for apple silicon macs
shoenig Nov 21, 2020
83b9e52
inline darwin cpufreq gathering
shoenig Nov 28, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 17 additions & 4 deletions cpu/cpu_darwin.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,11 +93,24 @@ func InfoWithContext(ctx context.Context) ([]InfoStat, error) {

// Use the rated frequency of the CPU. This is a static value and does not
// account for low power or Turbo Boost modes.
cpuFrequency, err := unix.SysctlUint64("hw.cpufrequency")
if err != nil {
return ret, err

// This works for Intel macs.
if cpuFrequency, err := unix.SysctlUint64("hw.cpufrequency"); err == nil {
c.Mhz = float64(cpuFrequency) / 1000000.0
} else {
// On Apple Silicon fallback to hw.tbfrequency and kern.clockrate[hz]
tbFreq, err := unix.SysctlUint64("hw.tbfrequency")
if err != nil {
return append(ret, c), err
}

kernClockrate, err := unix.SysctlClockinfo("kern.clockrate")
if err != nil {
return append(ret, c), err
}

c.Mhz = (float64(tbFreq) * float64(kernClockrate.Hz)) / 1000000.0
}
c.Mhz = float64(cpuFrequency) / 1000000.0

return append(ret, c), nil
}
Expand Down
21 changes: 17 additions & 4 deletions v3/cpu/cpu_darwin.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,11 +93,24 @@ func InfoWithContext(ctx context.Context) ([]InfoStat, error) {

// Use the rated frequency of the CPU. This is a static value and does not
// account for low power or Turbo Boost modes.
cpuFrequency, err := unix.SysctlUint64("hw.cpufrequency")
if err != nil {
return ret, err

// This works for Intel macs.
if cpuFrequency, err := unix.SysctlUint64("hw.cpufrequency"); err == nil {
c.Mhz = float64(cpuFrequency) / 1000000.0
} else {
// On Apple Silicon fallback to hw.tbfrequency and kern.clockrate[hz]
tbFreq, err := unix.SysctlUint64("hw.tbfrequency")
if err != nil {
return append(ret, c), err
}

kernClockrate, err := unix.SysctlClockinfo("kern.clockrate")
if err != nil {
return append(ret, c), err
}

c.Mhz = (float64(tbFreq) * float64(kernClockrate.Hz)) / 1000000.0
}
c.Mhz = float64(cpuFrequency) / 1000000.0

return append(ret, c), nil
}
Expand Down