Crate counters_abi 

This module describes how the kernel exposes its internal counters to userland. This is a PRIVATE UNSTABLE ABI that may change at any time! The layouts used here; the set of counters; their names, meanings, and types; and the set of available types; are all subject to change in every kernel version and are not meant to be any kind of stable ABI between the kernel and userland.

The expectation is that these layouts will be used only by a single privileged service that is tightly-coupled with the kernel, i.e. always built from source when building the kernel.

The counters exist only for kernel-specific diagnostic and logging purposes.

Structs

Descriptor

Binary-stable C-compatible representation of a kernel counter descriptor.

DescriptorVmo

Header layout of the kernel counter descriptor VMO (counters::DescriptorVmo).

Enums

Type

The aggregation type of a kernel counter.

Constants

ARENA_VMO_NAME

PA_VMO_KERNEL_FILE with this name holds an array of SMP_MAX_CPUS arrays, each of which is i64[num_counters()] indexed by the index into DescriptorVmo’s descriptor table (counters::kArenaVmoName).

DESCRIPTOR_VMO_NAME

Name of the kernel counter descriptor VMO (counters::DescriptorVmo::kVmoName).