mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-11 06:03:57 +08:00
Aleksa Sarai
db3159c9d9
Add support for the pids cgroup controller to libcontainer, a recent feature that is available in Linux 4.3+. Unfortunately, due to the init process being written in Go, it can spawn an an unknown number of threads due to blocked syscalls. This results in the init process being unable to run properly, and thus small pids.max configs won't work properly. Signed-off-by: Aleksa Sarai <asarai@suse.com>
99 lines
3.5 KiB
Go
99 lines
3.5 KiB
Go
// +build linux
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package cgroups
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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,omitempty"`
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// Number of periods when the container hit its throttling limit.
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ThrottledPeriods uint64 `json:"throttled_periods,omitempty"`
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// Aggregate time the container was throttled for in nanoseconds.
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ThrottledTime uint64 `json:"throttled_time,omitempty"`
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}
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// All CPU stats are aggregate since container inception.
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type CpuUsage struct {
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// Total CPU time consumed.
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// Units: nanoseconds.
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TotalUsage uint64 `json:"total_usage,omitempty"`
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// Total CPU time consumed per core.
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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.
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// Units: nanoseconds.
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UsageInKernelmode uint64 `json:"usage_in_kernelmode"`
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// Time spent by tasks of the cgroup in user mode.
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// Units: nanoseconds.
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UsageInUsermode uint64 `json:"usage_in_usermode"`
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}
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type CpuStats struct {
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CpuUsage CpuUsage `json:"cpu_usage,omitempty"`
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ThrottlingData ThrottlingData `json:"throttling_data,omitempty"`
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}
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type MemoryData struct {
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Usage uint64 `json:"usage,omitempty"`
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MaxUsage uint64 `json:"max_usage,omitempty"`
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Failcnt uint64 `json:"failcnt"`
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}
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type MemoryStats struct {
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// memory used for cache
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Cache uint64 `json:"cache,omitempty"`
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// usage of memory
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Usage MemoryData `json:"usage,omitempty"`
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// usage of memory + swap
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SwapUsage MemoryData `json:"swap_usage,omitempty"`
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// usafe of kernel memory
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KernelUsage MemoryData `json:"kernel_usage,omitempty"`
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Stats map[string]uint64 `json:"stats,omitempty"`
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}
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type PidsStats struct {
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// number of pids in the cgroup
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Current uint64 `json:"current,omitempty"`
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}
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type BlkioStatEntry struct {
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Major uint64 `json:"major,omitempty"`
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Minor uint64 `json:"minor,omitempty"`
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Op string `json:"op,omitempty"`
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Value uint64 `json:"value,omitempty"`
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}
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type BlkioStats struct {
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// number of bytes tranferred to and from the block device
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IoServiceBytesRecursive []BlkioStatEntry `json:"io_service_bytes_recursive,omitempty"`
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IoServicedRecursive []BlkioStatEntry `json:"io_serviced_recursive,omitempty"`
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IoQueuedRecursive []BlkioStatEntry `json:"io_queue_recursive,omitempty"`
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IoServiceTimeRecursive []BlkioStatEntry `json:"io_service_time_recursive,omitempty"`
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IoWaitTimeRecursive []BlkioStatEntry `json:"io_wait_time_recursive,omitempty"`
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IoMergedRecursive []BlkioStatEntry `json:"io_merged_recursive,omitempty"`
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IoTimeRecursive []BlkioStatEntry `json:"io_time_recursive,omitempty"`
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SectorsRecursive []BlkioStatEntry `json:"sectors_recursive,omitempty"`
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}
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type HugetlbStats struct {
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// current res_counter usage for hugetlb
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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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// number of times htgetlb usage allocation failure.
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Failcnt uint64 `json:"failcnt"`
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}
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type Stats struct {
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CpuStats CpuStats `json:"cpu_stats,omitempty"`
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MemoryStats MemoryStats `json:"memory_stats,omitempty"`
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PidsStats PidsStats `json:"pids_stats,omitempty"`
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BlkioStats BlkioStats `json:"blkio_stats,omitempty"`
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// the map is in the format "size of hugepage: stats of the hugepage"
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HugetlbStats map[string]HugetlbStats `json:"hugetlb_stats,omitempty"`
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}
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func NewStats() *Stats {
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memoryStats := MemoryStats{Stats: make(map[string]uint64)}
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hugetlbStats := make(map[string]HugetlbStats)
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return &Stats{MemoryStats: memoryStats, HugetlbStats: hugetlbStats}
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}
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