memory

Documentation

Overview

Package memory tracks the memory usage of the host.

Index

• Constants
• func Get(ctx context.Context) (_ any, e error)
• func New(ctx context.Context, cfg Config) components.Component
• type Config
  • func ParseConfig(b any, dbRW *sql.DB, dbRO *sql.DB) (*Config, error)
  • func (cfg Config) Validate() error
• type Output
  • func ParseOutputJSON(data []byte) (*Output, error)
  • func ParseStateKeyVirtualMemory(m map[string]string) (*Output, error)
  • func ParseStatesToOutput(states ...components.State) (*Output, error)
  • func (o Output) GetUsedPercent() (float64, error)
  • func (o *Output) JSON() ([]byte, error)
  • func (o *Output) States() ([]components.State, error)

Constants

const (
	EventKeyUnixSeconds = "unix_seconds"
	EventKeyLogLine     = "log_line"
)

const (
	StateKeyVirtualMemory = "virtual_memory"

	StateKeyTotalBytes         = "total_bytes"
	StateKeyTotalHumanized     = "total_humanized"
	StateKeyAvailableBytes     = "available_bytes"
	StateKeyAvailableHumanized = "available_humanized"
	StateKeyUsedBytes          = "used_bytes"
	StateKeyUsedHumanized      = "used_humanized"
	StateKeyUsedPercent        = "used_percent"
	StateKeyFreeBytes          = "free_bytes"
	StateKeyFreeHumanized      = "free_humanized"

	StateKeyVMAllocTotalBytes     = "vm_alloc_total_bytes"
	StateKeyVMAllocTotalHumanized = "vm_alloc_total_humanized"
	StateKeyVMAllocUsedBytes      = "vm_alloc_used_bytes"
	StateKeyVMAllocUsedHumanized  = "vm_alloc_used_humanized"
	StateKeyVMAllocUsedPercent    = "vm_alloc_used_percent"

	StateKeyBPFJITBufferBytes     = "bpf_jit_buffer_bytes"
	StateKeyBPFJITBufferHumanized = "bpf_jit_buffer_humanized"
)

Functions

func Get

func Get(ctx context.Context) (_ any, e error)

func New

func New(ctx context.Context, cfg Config) components.Component

Types

type Config

type Config struct {
	Query query_config.Config `json:"query"`
}

func ParseConfig

func ParseConfig(b any, dbRW *sql.DB, dbRO *sql.DB) (*Config, error)

func (Config) Validate

func (cfg Config) Validate() error

type Output

type Output struct {
	TotalBytes     uint64 `json:"total_bytes"`
	TotalHumanized string `json:"total_humanized"`

	AvailableBytes     uint64 `json:"available_bytes"`
	AvailableHumanized string `json:"available_humanized"`

	UsedBytes     uint64 `json:"used_bytes"`
	UsedHumanized string `json:"used_humanized"`

	UsedPercent string `json:"used_percent"`

	FreeBytes     uint64 `json:"free_bytes"`
	FreeHumanized string `json:"free_humanized"`

	VMAllocTotalBytes     uint64 `json:"vm_alloc_total_bytes"`
	VMAllocTotalHumanized string `json:"vm_alloc_total_humanized"`
	VMAllocUsedBytes      uint64 `json:"vm_alloc_used_bytes"`
	VMAllocUsedHumanized  string `json:"vm_alloc_used_humanized"`
	VMAllocUsedPercent    string `json:"vm_alloc_used_percent"`

	// Represents the current BPF JIT buffer size in bytes.
	// ref. "cat /proc/vmallocinfo | grep bpf_jit | awk '{s+=$2} END {print s}'"
	BPFJITBufferBytes     uint64 `json:"bpf_jit_buffer_bytes"`
	BPFJITBufferHumanized string `json:"bpf_jit_buffer_humanized"`
}

func ParseOutputJSON

func ParseOutputJSON(data []byte) (*Output, error)

func ParseStateKeyVirtualMemory

func ParseStateKeyVirtualMemory(m map[string]string) (*Output, error)

func ParseStatesToOutput

func ParseStatesToOutput(states ...components.State) (*Output, error)

func (Output) GetUsedPercent

func (o Output) GetUsedPercent() (float64, error)

func (*Output) JSON

func (o *Output) JSON() ([]byte, error)

func (*Output) States

func (o *Output) States() ([]components.State, error)