syntax = "proto3";

package io.containerd.cgroups.v1;

option go_package = "github.com/containerd/cgroups/cgroup1/stats";

message Metrics {
	repeated HugetlbStat hugetlb = 1;
	PidsStat pids = 2;
	CPUStat cpu = 3;
	MemoryStat memory = 4;
	BlkIOStat blkio = 5;
	RdmaStat rdma = 6;
	repeated NetworkStat network = 7;
	CgroupStats cgroup_stats = 8;
	MemoryOomControl memory_oom_control = 9;
}

message HugetlbStat {
	uint64 usage = 1;
	uint64 max = 2;
	uint64 failcnt = 3;
	string pagesize = 4;
}

message PidsStat {
	uint64 current = 1;
	uint64 limit = 2;
}

message CPUStat {
	CPUUsage usage = 1;
	Throttle throttling = 2;
}

message CPUUsage {
	// values in nanoseconds
	uint64 total = 1;
	uint64 kernel = 2;
	uint64 user = 3;
	repeated uint64 per_cpu = 4;

}

message Throttle {
	uint64 periods = 1;
	uint64 throttled_periods = 2;
	uint64 throttled_time = 3;
}

message MemoryStat {
	uint64 cache = 1;
	uint64 rss = 2;
	uint64 rss_huge = 3;
	uint64 mapped_file = 4;
	uint64 dirty = 5;
	uint64 writeback = 6;
	uint64 pg_pg_in = 7;
	uint64 pg_pg_out = 8;
	uint64 pg_fault = 9;
	uint64 pg_maj_fault = 10;
	uint64 inactive_anon = 11;
	uint64 active_anon = 12;
	uint64 inactive_file = 13;
	uint64 active_file = 14;
	uint64 unevictable = 15;
	uint64 hierarchical_memory_limit = 16;
	uint64 hierarchical_swap_limit = 17;
	uint64 total_cache = 18;
	uint64 total_rss = 19;
	uint64 total_rss_huge = 20;
	uint64 total_mapped_file = 21;
	uint64 total_dirty = 22;
	uint64 total_writeback = 23;
	uint64 total_pg_pg_in = 24;
	uint64 total_pg_pg_out = 25;
	uint64 total_pg_fault = 26;
	uint64 total_pg_maj_fault = 27;
	uint64 total_inactive_anon = 28;
	uint64 total_active_anon = 29;
	uint64 total_inactive_file = 30;
	uint64 total_active_file = 31;
	uint64 total_unevictable = 32;
	MemoryEntry usage = 33;
	MemoryEntry swap = 34;
	MemoryEntry kernel = 35;
	MemoryEntry kernel_tcp = 36;

}

message MemoryEntry {
	uint64 limit = 1;
	uint64 usage = 2;
	uint64 max = 3;
	uint64 failcnt = 4;
}

message MemoryOomControl {
	uint64 oom_kill_disable = 1;
	uint64 under_oom = 2;
	uint64 oom_kill = 3;
}

message BlkIOStat {
	repeated BlkIOEntry io_service_bytes_recursive = 1;
	repeated BlkIOEntry io_serviced_recursive = 2;
	repeated BlkIOEntry io_queued_recursive = 3;
	repeated BlkIOEntry io_service_time_recursive = 4;
	repeated BlkIOEntry io_wait_time_recursive = 5;
	repeated BlkIOEntry io_merged_recursive = 6;
	repeated BlkIOEntry io_time_recursive = 7;
	repeated BlkIOEntry sectors_recursive = 8;
}

message BlkIOEntry {
	string op = 1;
	string device = 2;
	uint64 major = 3;
	uint64 minor = 4;
	uint64 value = 5;
}

message RdmaStat {
	repeated RdmaEntry current = 1;
	repeated RdmaEntry limit = 2;
}

message RdmaEntry {
	string device = 1;
	uint32 hca_handles = 2;
	uint32 hca_objects = 3;
}

message NetworkStat {
	string name = 1;
	uint64 rx_bytes = 2;
	uint64 rx_packets = 3;
	uint64 rx_errors  = 4;
	uint64 rx_dropped = 5;
	uint64 tx_bytes = 6;
	uint64 tx_packets = 7;
	uint64 tx_errors = 8;
	uint64 tx_dropped = 9;
}

// CgroupStats exports per-cgroup statistics.
message CgroupStats {
	// number of tasks sleeping
	uint64 nr_sleeping = 1;
	// number of tasks running
	uint64 nr_running = 2;
	// number of tasks in stopped state
	uint64 nr_stopped = 3;
	// number of tasks in uninterruptible state
	uint64 nr_uninterruptible = 4;
	// number of tasks waiting on IO
	uint64 nr_io_wait = 5;
}