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Add swap statistics to CRI-API

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Signed-off-by: Itamar Holder <iholder@redhat.com>
This commit is contained in:
Itamar Holder 2023-07-12 16:55:26 +03:00
parent 053d7ac61f
commit 87ff9c4525
3 changed files with 823 additions and 442 deletions
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14
pkg/kubelet/stats/cri_stats_provider.go
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@ -577,6 +577,7 @@ func (p *criStatsProvider) makeContainerStats(
CPU: &statsapi.CPUStats{},
Memory: &statsapi.MemoryStats{},
Rootfs: &statsapi.FsStats{},
Swap: &statsapi.SwapStats{},
// UserDefinedMetrics is not supported by CRI.
}
if stats.Cpu != nil {
@ -607,6 +608,19 @@ func (p *criStatsProvider) makeContainerStats(
result.Memory.Time = metav1.NewTime(time.Unix(0, time.Now().UnixNano()))
result.Memory.WorkingSetBytes = uint64Ptr(0)
}
if stats.Swap != nil {
result.Swap.Time = metav1.NewTime(time.Unix(0, stats.Swap.Timestamp))
if stats.Swap.SwapUsageBytes != nil {
result.Swap.SwapUsageBytes = &stats.Swap.SwapUsageBytes.Value
}
if stats.Swap.SwapAvailableBytes != nil {
result.Swap.SwapAvailableBytes = &stats.Swap.SwapAvailableBytes.Value
}
} else {
result.Swap.Time = metav1.NewTime(time.Unix(0, time.Now().UnixNano()))
result.Swap.SwapUsageBytes = uint64Ptr(0)
result.Swap.SwapAvailableBytes = uint64Ptr(0)
}
if stats.WritableLayer != nil {
result.Rootfs.Time = metav1.NewTime(time.Unix(0, stats.WritableLayer.Timestamp))
if stats.WritableLayer.UsedBytes != nil {

1240
staging/src/k8s.io/cri-api/pkg/apis/runtime/v1/api.pb.go
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File diff suppressed because it is too large Load Diff

11
staging/src/k8s.io/cri-api/pkg/apis/runtime/v1/api.proto
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@ -1639,6 +1639,8 @@ message ContainerStats {
MemoryUsage memory = 3;
// Usage of the writable layer.
FilesystemUsage writable_layer = 4;
// Swap usage gathered from the container.
SwapUsage swap = 5;
}
// WindowsContainerStats provides the resource usage statistics for a container specific for Windows
@ -1693,6 +1695,15 @@ message MemoryUsage {
UInt64Value major_page_faults = 7;
}
message SwapUsage {
// Timestamp in nanoseconds at which the information were collected. Must be > 0.
int64 timestamp = 1;
// Available swap for use. This is defined as the swap limit - swapUsageBytes.
UInt64Value swap_available_bytes = 2;
// Total memory in use. This includes all memory regardless of when it was accessed.
UInt64Value swap_usage_bytes = 3;
}
// WindowsMemoryUsage provides the memory usage information specific to Windows
message WindowsMemoryUsage {
// Timestamp in nanoseconds at which the information were collected. Must be > 0.