OSCL-LXR

Auto-group scheduling implementation:

These are the scheduling policy related scheduler files, built in a single compilation unit for build efficiency reasons.

These are various utility functions of the scheduler, built in a single compilation unit for build efficiency reasons.

Scheduler clock - returns current time in nanosec units. This is default implementation. Architectures and sub-architectures can override this.

Generic wait-for-completion handler; It differs from semaphores in that their default case is the opposite, wait_for_completion default blocks whereas semaphore default non-block.

A simple wrapper around refcount. An allocated sched_core_cookie's address is used to compute the cookie of the task.

CPU accounting code for task groups. Based on the work by Paul Menage (menage@google.com) and Balbir Singh (balbir@in.ibm.com).

kernel/sched/ Global CPU deadline management Author: Juri Lelli <j.lelli@sssup.it">j.lelli@sssup.it>

cpufreq_add_update_util_hook - Populate the CPU's update_util_data pointer.

Simple CPU accounting cgroup controller

Default limits for DL period; on the top end we guard against small util tasks still getting ridiculously long effective runtimes, on the bottom end we guard against timer DoS.

This allows printing both to /proc/sched_debug and to the console

Only give sleepers 50% of their service deficit. This allows them to run sooner, but does not allow tons of sleepers to rip the spread apart.

Generic entry points for the idle threads and implementation of the idle task scheduling class. (NOTE: these are not related to SCHED_IDLE batch scheduled tasks which are handled in sched/fair.c )

kernel/sched/ This file contains the magic bits required to compute the global loadavg figure.

Approximate: val * y^n, where y^32 ~= 0.5 (~1 scheduling period)

Pressure stall information for CPU, memory and IO Copyright (c) 2018 Facebook, Inc.

Real-Time Scheduling Class (mapped to the SCHED_FIFO and SCHED_RR policies)

Generated by Documentation/scheduler/sched-pelt; do not modify.

Scheduler internal types and methods:

Scheduler internal SMP callback types and methods between the scheduler and other internal parts of the core kernel:

proc/schedstat implementation

stop-task scheduling class. The stop task is the highest priority task in the system, it preempts everything and will be preempted by nothing. See kernel/stop_machine.c

linux/swait.h> (simple wait queues ) implementation:

Scheduler topology setup/handling methods

Generic waiting primitives. (C) 2004 Nadia Yvette Chambers, Oracle

The implementation of the wait_bit*() and related waiting APIs: