disk

package

v0.0.0-...-ccefb74 Latest Latest Go to latest Published: Jun 1, 2020 License: Apache-2.0 Imports: 10 Imported by: 0

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Repository

github.com/elitecodegroovy/tos

Documentation ¶

Rendered for

Index ¶

func AlignedBlock(BlockSize int) []byte
func DisableDirectIO(f *os.File) error
func GetOBDInfo(ctx context.Context, drive, fsPath string) (Latency, Throughput, error)
func IsRootDisk(diskPath string) (bool, error)
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error)
type Info
- func GetInfo(path string) (info Info, err error)
type Latency
type Throughput

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func AlignedBlock ¶

func AlignedBlock(BlockSize int) []byte

AlignedBlock - pass through to directio implementation.

func DisableDirectIO ¶

func DisableDirectIO(f *os.File) error

DisableDirectIO - disables directio mode.

func IsRootDisk ¶

func IsRootDisk(diskPath string) (bool, error)

IsRootDisk returns if diskPath belongs to root-disk, i.e the disk mounted at "/"

Types ¶

type Info ¶

type Info struct {
	Total  uint64
	Free   uint64
	Files  uint64
	Ffree  uint64
	FSType string

	// Usage is calculated per tenant.
	Usage uint64
}

Info stat fs struct is container which holds following values Total - total size of the volume / disk Free - free size of the volume / disk Files - total inodes available Ffree - free inodes available FSType - file system type

func GetInfo ¶

func GetInfo(path string) (info Info, err error)

GetInfo returns total and free bytes available in a directory, e.g. `/`.

type Latency ¶

type Latency struct {
	Avg          float64 `json:"avg_secs,omitempty"`
	Percentile50 float64 `json:"percentile50_secs,omitempty"`
	Percentile90 float64 `json:"percentile90_secs,omitempty"`
	Percentile99 float64 `json:"percentile99_secs,omitempty"`
	Min          float64 `json:"min_secs,omitempty"`
	Max          float64 `json:"max_secs,omitempty"`
}

Latency holds latency information for write operations to the drive

type Throughput ¶

type Throughput struct {
	Avg          float64 `json:"avg_bytes_per_sec,omitempty"`
	Percentile50 float64 `json:"percentile50_bytes_per_sec,omitempty"`
	Percentile90 float64 `json:"percentile90_bytes_per_sec,omitempty"`
	Percentile99 float64 `json:"percentile99_bytes_per_sec,omitempty"`
	Min          float64 `json:"min_bytes_per_sec,omitempty"`
	Max          float64 `json:"max_bytes_per_sec,omitempty"`
}

Throughput holds throughput information for write operations to the drive

Source Files ¶

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