181 lines
6.7 KiB
Go
181 lines
6.7 KiB
Go
// Package types is used for API stability in the types and response to the
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// consumers of the API stats endpoint.
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package types // import "github.com/docker/docker/api/types"
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import "time"
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// ThrottlingData stores CPU throttling stats of one running container.
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// Not used on Windows.
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type ThrottlingData struct {
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// Number of periods with throttling active
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Periods uint64 `json:"periods"`
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// Number of periods when the container hits its throttling limit.
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ThrottledPeriods uint64 `json:"throttled_periods"`
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// Aggregate time the container was throttled for in nanoseconds.
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ThrottledTime uint64 `json:"throttled_time"`
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}
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// CPUUsage stores All CPU stats aggregated since container inception.
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type CPUUsage struct {
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// Total CPU time consumed.
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// Units: nanoseconds (Linux)
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// Units: 100's of nanoseconds (Windows)
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TotalUsage uint64 `json:"total_usage"`
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// Total CPU time consumed per core (Linux). Not used on Windows.
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// Units: nanoseconds.
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PercpuUsage []uint64 `json:"percpu_usage,omitempty"`
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// Time spent by tasks of the cgroup in kernel mode (Linux).
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// Time spent by all container processes in kernel mode (Windows).
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// Units: nanoseconds (Linux).
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// Units: 100's of nanoseconds (Windows). Not populated for Hyper-V Containers.
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UsageInKernelmode uint64 `json:"usage_in_kernelmode"`
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// Time spent by tasks of the cgroup in user mode (Linux).
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// Time spent by all container processes in user mode (Windows).
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// Units: nanoseconds (Linux).
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// Units: 100's of nanoseconds (Windows). Not populated for Hyper-V Containers
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UsageInUsermode uint64 `json:"usage_in_usermode"`
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}
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// CPUStats aggregates and wraps all CPU related info of container
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type CPUStats struct {
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// CPU Usage. Linux and Windows.
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CPUUsage CPUUsage `json:"cpu_usage"`
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// System Usage. Linux only.
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SystemUsage uint64 `json:"system_cpu_usage,omitempty"`
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// Online CPUs. Linux only.
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OnlineCPUs uint32 `json:"online_cpus,omitempty"`
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// Throttling Data. Linux only.
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ThrottlingData ThrottlingData `json:"throttling_data,omitempty"`
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}
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// MemoryStats aggregates all memory stats since container inception on Linux.
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// Windows returns stats for commit and private working set only.
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type MemoryStats struct {
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// Linux Memory Stats
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// current res_counter usage for memory
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Usage uint64 `json:"usage,omitempty"`
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// maximum usage ever recorded.
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MaxUsage uint64 `json:"max_usage,omitempty"`
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// TODO(vishh): Export these as stronger types.
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// all the stats exported via memory.stat.
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Stats map[string]uint64 `json:"stats,omitempty"`
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// number of times memory usage hits limits.
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Failcnt uint64 `json:"failcnt,omitempty"`
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Limit uint64 `json:"limit,omitempty"`
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// Windows Memory Stats
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// See https://technet.microsoft.com/en-us/magazine/ff382715.aspx
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// committed bytes
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Commit uint64 `json:"commitbytes,omitempty"`
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// peak committed bytes
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CommitPeak uint64 `json:"commitpeakbytes,omitempty"`
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// private working set
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PrivateWorkingSet uint64 `json:"privateworkingset,omitempty"`
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}
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// BlkioStatEntry is one small entity to store a piece of Blkio stats
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// Not used on Windows.
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type BlkioStatEntry struct {
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Major uint64 `json:"major"`
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Minor uint64 `json:"minor"`
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Op string `json:"op"`
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Value uint64 `json:"value"`
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}
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// BlkioStats stores All IO service stats for data read and write.
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// This is a Linux specific structure as the differences between expressing
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// block I/O on Windows and Linux are sufficiently significant to make
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// little sense attempting to morph into a combined structure.
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type BlkioStats struct {
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// number of bytes transferred to and from the block device
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IoServiceBytesRecursive []BlkioStatEntry `json:"io_service_bytes_recursive"`
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IoServicedRecursive []BlkioStatEntry `json:"io_serviced_recursive"`
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IoQueuedRecursive []BlkioStatEntry `json:"io_queue_recursive"`
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IoServiceTimeRecursive []BlkioStatEntry `json:"io_service_time_recursive"`
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IoWaitTimeRecursive []BlkioStatEntry `json:"io_wait_time_recursive"`
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IoMergedRecursive []BlkioStatEntry `json:"io_merged_recursive"`
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IoTimeRecursive []BlkioStatEntry `json:"io_time_recursive"`
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SectorsRecursive []BlkioStatEntry `json:"sectors_recursive"`
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}
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// StorageStats is the disk I/O stats for read/write on Windows.
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type StorageStats struct {
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ReadCountNormalized uint64 `json:"read_count_normalized,omitempty"`
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ReadSizeBytes uint64 `json:"read_size_bytes,omitempty"`
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WriteCountNormalized uint64 `json:"write_count_normalized,omitempty"`
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WriteSizeBytes uint64 `json:"write_size_bytes,omitempty"`
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}
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// NetworkStats aggregates the network stats of one container
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type NetworkStats struct {
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// Bytes received. Windows and Linux.
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RxBytes uint64 `json:"rx_bytes"`
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// Packets received. Windows and Linux.
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RxPackets uint64 `json:"rx_packets"`
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// Received errors. Not used on Windows. Note that we don't `omitempty` this
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// field as it is expected in the >=v1.21 API stats structure.
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RxErrors uint64 `json:"rx_errors"`
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// Incoming packets dropped. Windows and Linux.
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RxDropped uint64 `json:"rx_dropped"`
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// Bytes sent. Windows and Linux.
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TxBytes uint64 `json:"tx_bytes"`
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// Packets sent. Windows and Linux.
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TxPackets uint64 `json:"tx_packets"`
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// Sent errors. Not used on Windows. Note that we dont `omitempty` this
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// field as it is expected in the >=v1.21 API stats structure.
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TxErrors uint64 `json:"tx_errors"`
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// Outgoing packets dropped. Windows and Linux.
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TxDropped uint64 `json:"tx_dropped"`
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// Endpoint ID. Not used on Linux.
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EndpointID string `json:"endpoint_id,omitempty"`
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// Instance ID. Not used on Linux.
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InstanceID string `json:"instance_id,omitempty"`
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}
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// PidsStats contains the stats of a container's pids
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type PidsStats struct {
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// Current is the number of pids in the cgroup
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Current uint64 `json:"current,omitempty"`
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// Limit is the hard limit on the number of pids in the cgroup.
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// A "Limit" of 0 means that there is no limit.
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Limit uint64 `json:"limit,omitempty"`
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}
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// Stats is Ultimate struct aggregating all types of stats of one container
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type Stats struct {
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// Common stats
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Read time.Time `json:"read"`
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PreRead time.Time `json:"preread"`
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// Linux specific stats, not populated on Windows.
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PidsStats PidsStats `json:"pids_stats,omitempty"`
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BlkioStats BlkioStats `json:"blkio_stats,omitempty"`
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// Windows specific stats, not populated on Linux.
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NumProcs uint32 `json:"num_procs"`
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StorageStats StorageStats `json:"storage_stats,omitempty"`
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// Shared stats
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CPUStats CPUStats `json:"cpu_stats,omitempty"`
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PreCPUStats CPUStats `json:"precpu_stats,omitempty"` // "Pre"="Previous"
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MemoryStats MemoryStats `json:"memory_stats,omitempty"`
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}
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// StatsJSON is newly used Networks
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type StatsJSON struct {
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Stats
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Name string `json:"name,omitempty"`
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ID string `json:"id,omitempty"`
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// Networks request version >=1.21
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Networks map[string]NetworkStats `json:"networks,omitempty"`
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}
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