eBPF Metrics

Metrics collected via eBPF programs attached to kernel tracepoints.

CPU

Metric	Type	Description
kpod.cpu.runqueue.latency	DistributionSummary	Time spent waiting in the CPU run queue (seconds)
kpod.cpu.context.switches	Counter	Context switch count

Network

Metric	Type	Description
kpod.net.tcp.bytes.sent	Counter	TCP bytes sent
kpod.net.tcp.bytes.received	Counter	TCP bytes received
kpod.net.tcp.retransmits	Counter	TCP retransmissions
kpod.net.tcp.connections	Counter	TCP connection count
kpod.net.tcp.rtt	DistributionSummary	TCP round-trip time (seconds)
kpod.net.tcp.drops	Counter	TCP packet drops

Memory

Metric	Type	Description
kpod.mem.oom.kills	Counter	OOM kill events
kpod.mem.major.page.faults	Counter	Major page faults
kpod.mem.cache.accesses	Counter	Page cache accesses
kpod.mem.cache.additions	Counter	Page cache additions (misses)
kpod.mem.cache.dirtied	Counter	Page cache dirty pages
kpod.mem.cache.buf.dirtied	Counter	Buffer cache dirty pages

Syscalls

Metric	Type	Extra Labels	Description
kpod.syscall.count	Counter	syscall	Syscall invocations
kpod.syscall.errors	Counter	syscall	Syscall errors
kpod.syscall.latency	DistributionSummary	syscall	Syscall latency

Disk I/O

Metric	Type	Description
kpod.disk.io.latency	DistributionSummary	Block I/O latency (seconds)

Interrupts

Metric	Type	Description
kpod.irq.hw.latency	DistributionSummary	Hardware interrupt latency (seconds)
kpod.irq.hw.count	Counter	Hardware interrupt count
kpod.irq.sw.latency	DistributionSummary	Software interrupt latency (seconds)

Process

Metric	Type	Description
kpod.proc.execs	Counter	Process exec events
kpod.proc.forks	Counter	Process fork events
kpod.proc.exits	Counter	Process exit events