pub fn detect_memory_pressure() -> Option<f64>Available on crate feature
memory only.Expand description
Detect THIS container’s own memory pressure as current / limit.
Reads the cgroup’s memory.current (v2) / memory.usage_in_bytes (v1)
against its memory.max / memory.limit_in_bytes. Returns None when no
cgroup memory limit is in force (bare metal, or memory.max == max), in
which case callers should fall back to a process/host signal.
This is the signal a container scheduler (K8s/cgroup OOM killer) actually
acts on – unlike host-wide used/total memory, which on a large shared
host is unrelated to this container’s limit.