speed

Documentation

Index

• func After(n int, suffix string) <-chan time.Time
• func Now() func() T
• func Trunc(d time.Duration, digits int) string
• type B
  • func Many(ringSize ...int) B
  • func (b *B) Add(t T, value ...float64)
  • func (b B) Avg() (t time.Duration, k float64)
  • func (b B) Avgk() float64
  • func (b B) Avgt() time.Duration
  • func (b B) Cap() int
  • func (b B) Format(state fmt.State, verb rune)
  • func (b B) Len() int
  • func (b B) Ordered() []T
  • func (b B) Std() (t time.Duration, k float64)
  • func (b B) Stdk() float64
  • func (b B) Stdt() time.Duration
  • func (b B) Unordered() []T
• type T
  • func Of(f func()) T
  • func (t T) Format(state fmt.State, verb rune)
  • func (t T) Left() time.Time
  • func (t T) MarshalJSON() ([]byte, error)
  • func (t T) Right() time.Time

Functions

func After

func After(n int, suffix string) <-chan time.Time

After is a convenient wrapper for time.After

func Now

func Now() func() T

Now makes a new time measurement starting now.

t0 := speed.Now()
<-time.After(100*time.Millisecond)
t0() // 101.383ms

func Trunc

func Trunc(d time.Duration, digits int) string

Types

type B

type B struct {
	// contains filtered or unexported fields
}

B is a benchmark ring.

Non-zero length B's function as a ring, effectively rewriting old frames with the new ones. Zero length B's grow normally.

func Many

func Many(ringSize ...int) B

Many constructs a benchmark.

func (*B) Add

func (b *B) Add(t T, value ...float64)

Adds pushes a time frame to the benchmark ring.

func (B) Avg

func (b B) Avg() (t time.Duration, k float64)

Avg corresponds to the arithmetic average.

func (B) Avgk

func (b B) Avgk() float64

Avgk returns the average of stored values in the ring.

func (B) Avgt

func (b B) Avgt() time.Duration

Avgt returns the average duration of all measurements.

func (B) Cap

func (b B) Cap() int

Len is the capacity of the underlying slice.

func (B) Format

func (b B) Format(state fmt.State, verb rune)

func (B) Len

func (b B) Len() int

Len is the number of items in the underlying slice.

func (B) Ordered

func (b B) Ordered() []T

Ordered returns the list of frames adjusted for ring position.

func (B) Std

func (b B) Std() (t time.Duration, k float64)

Std corresponds to the standard deviation.

func (B) Stdk

func (b B) Stdk() float64

Avgt returns the standard deviation of the K-values.

func (B) Stdt

func (b B) Stdt() time.Duration

Avgt returns the standard deviation of the durations.

func (B) Unordered

func (b B) Unordered() []T

Unordered returns the list of time frames as-is.

type T

type T struct {
	time.Duration
	// K is a number associated with the time frame.
	K float64
	// contains filtered or unexported fields
}

T is a time frame.

func Of

func Of(f func()) T

Of measures function run time.

func (T) Format

func (t T) Format(state fmt.State, verb rune)

func (T) Left

func (t T) Left() time.Time

func (T) MarshalJSON

func (t T) MarshalJSON() ([]byte, error)

func (T) Right

func (t T) Right() time.Time