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moby--moby/daemon/stats_linux.go
Hu Keping d3379946ec Refactor the statistics of network in docker stats
For now docker stats will sum the rxbytes, txbytes, etc. of all
the interfaces.

It is OK for the output of CLI `docker stats` but not good for
the API response, especially when the container is in sereval
subnets.

It's better to leave these origianl data to user.

Signed-off-by: Hu Keping <hukeping@huawei.com>
2015-09-15 15:40:34 +08:00

80 lines
2.6 KiB
Go

package daemon
import (
"github.com/docker/docker/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,
}
}
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
}