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moby--moby/daemon/stats_linux.go
Jessica Frazelle 69cf03700f
pids limit support
update bash commpletion for pids limit

update check config for kernel

add docs for pids limit

add pids stats

add stats to docker client

Signed-off-by: Jessica Frazelle <acidburn@docker.com>
2016-03-08 07:55:01 -08:00

84 lines
2.7 KiB
Go

package daemon
import (
"github.com/docker/engine-api/types"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/cgroups"
)
// convertStatsToAPITypes converts the libcontainer.Stats to the api specific
// structs. This is done to preserve API compatibility and versioning.
func convertStatsToAPITypes(ls *libcontainer.Stats) *types.StatsJSON {
s := &types.StatsJSON{}
if ls.Interfaces != nil {
s.Networks = make(map[string]types.NetworkStats)
for _, iface := range ls.Interfaces {
// For API Version >= 1.21, the original data of network will
// be returned.
s.Networks[iface.Name] = types.NetworkStats{
RxBytes: iface.RxBytes,
RxPackets: iface.RxPackets,
RxErrors: iface.RxErrors,
RxDropped: iface.RxDropped,
TxBytes: iface.TxBytes,
TxPackets: iface.TxPackets,
TxErrors: iface.TxErrors,
TxDropped: iface.TxDropped,
}
}
}
cs := ls.CgroupStats
if cs != nil {
s.BlkioStats = types.BlkioStats{
IoServiceBytesRecursive: copyBlkioEntry(cs.BlkioStats.IoServiceBytesRecursive),
IoServicedRecursive: copyBlkioEntry(cs.BlkioStats.IoServicedRecursive),
IoQueuedRecursive: copyBlkioEntry(cs.BlkioStats.IoQueuedRecursive),
IoServiceTimeRecursive: copyBlkioEntry(cs.BlkioStats.IoServiceTimeRecursive),
IoWaitTimeRecursive: copyBlkioEntry(cs.BlkioStats.IoWaitTimeRecursive),
IoMergedRecursive: copyBlkioEntry(cs.BlkioStats.IoMergedRecursive),
IoTimeRecursive: copyBlkioEntry(cs.BlkioStats.IoTimeRecursive),
SectorsRecursive: copyBlkioEntry(cs.BlkioStats.SectorsRecursive),
}
cpu := cs.CpuStats
s.CPUStats = types.CPUStats{
CPUUsage: types.CPUUsage{
TotalUsage: cpu.CpuUsage.TotalUsage,
PercpuUsage: cpu.CpuUsage.PercpuUsage,
UsageInKernelmode: cpu.CpuUsage.UsageInKernelmode,
UsageInUsermode: cpu.CpuUsage.UsageInUsermode,
},
ThrottlingData: types.ThrottlingData{
Periods: cpu.ThrottlingData.Periods,
ThrottledPeriods: cpu.ThrottlingData.ThrottledPeriods,
ThrottledTime: cpu.ThrottlingData.ThrottledTime,
},
}
mem := cs.MemoryStats
s.MemoryStats = types.MemoryStats{
Usage: mem.Usage.Usage,
MaxUsage: mem.Usage.MaxUsage,
Stats: mem.Stats,
Failcnt: mem.Usage.Failcnt,
}
pids := cs.PidsStats
s.PidsStats = types.PidsStats{
Current: pids.Current,
}
}
return s
}
func copyBlkioEntry(entries []cgroups.BlkioStatEntry) []types.BlkioStatEntry {
out := make([]types.BlkioStatEntry, len(entries))
for i, re := range entries {
out[i] = types.BlkioStatEntry{
Major: re.Major,
Minor: re.Minor,
Op: re.Op,
Value: re.Value,
}
}
return out
}