diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 23 | ||||
| -rw-r--r-- | init/init_task.c | 10 | ||||
| -rw-r--r-- | init/main.c | 2 |
3 files changed, 33 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig index bd7d650d4a99..74c0a80025c6 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -68,6 +68,18 @@ config THREAD_INFO_IN_TASK menu "General setup" +config SCHED_MUQSS + bool "MuQSS cpu scheduler" + select HIGH_RES_TIMERS + ---help--- + The Multiple Queue Skiplist Scheduler for excellent interactivity and + responsiveness on the desktop and highly scalable deterministic + low latency on any hardware. + + Say Y here. + default y + + config BROKEN bool @@ -797,6 +809,7 @@ config NUMA_BALANCING depends on ARCH_SUPPORTS_NUMA_BALANCING depends on !ARCH_WANT_NUMA_VARIABLE_LOCALITY depends on SMP && NUMA && MIGRATION + depends on !SCHED_MUQSS help This option adds support for automatic NUMA aware memory/task placement. The mechanism is quite primitive and is based on migrating memory when @@ -896,9 +909,13 @@ menuconfig CGROUP_SCHED help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. It uses cgroups to group - tasks. + tasks. In combination with MuQSS this is purely a STUB to create the + files associated with the CPU controller cgroup but most of the + controls do nothing. This is useful for working in environments and + with applications that will only work if this control group is + present. -if CGROUP_SCHED +if CGROUP_SCHED && !SCHED_MUQSS config FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" depends on CGROUP_SCHED @@ -1005,6 +1022,7 @@ config CGROUP_DEVICE config CGROUP_CPUACCT bool "Simple CPU accounting controller" + depends on !SCHED_MUQSS help Provides a simple controller for monitoring the total CPU consumed by the tasks in a cgroup. @@ -1123,6 +1141,7 @@ config CHECKPOINT_RESTORE config SCHED_AUTOGROUP bool "Automatic process group scheduling" + depends on !SCHED_MUQSS select CGROUPS select CGROUP_SCHED select FAIR_GROUP_SCHED diff --git a/init/init_task.c b/init/init_task.c index 7ab773b9b3cd..bb680b2f186a 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -68,9 +68,17 @@ struct task_struct init_task .stack = init_stack, .usage = REFCOUNT_INIT(2), .flags = PF_KTHREAD, +#ifdef CONFIG_SCHED_MUQSS + .prio = NORMAL_PRIO, + .static_prio = MAX_PRIO - 20, + .normal_prio = NORMAL_PRIO, + .deadline = 0, + .time_slice = 1000000, +#else .prio = MAX_PRIO - 20, .static_prio = MAX_PRIO - 20, .normal_prio = MAX_PRIO - 20, +#endif .policy = SCHED_NORMAL, .cpus_ptr = &init_task.cpus_mask, .cpus_mask = CPU_MASK_ALL, @@ -80,6 +88,7 @@ struct task_struct init_task .restart_block = { .fn = do_no_restart_syscall, }, +#ifndef CONFIG_SCHED_MUQSS .se = { .group_node = LIST_HEAD_INIT(init_task.se.group_node), }, @@ -87,6 +96,7 @@ struct task_struct init_task .run_list = LIST_HEAD_INIT(init_task.rt.run_list), .time_slice = RR_TIMESLICE, }, +#endif .tasks = LIST_HEAD_INIT(init_task.tasks), #ifdef CONFIG_SMP .pushable_tasks = PLIST_NODE_INIT(init_task.pushable_tasks, MAX_PRIO), diff --git a/init/main.c b/init/main.c index 96f8d5af52d6..5f770094a547 100644 --- a/init/main.c +++ b/init/main.c @@ -1125,6 +1125,8 @@ static int __ref kernel_init(void *unused) rcu_end_inkernel_boot(); + print_scheduler_version(); + if (ramdisk_execute_command) { ret = run_init_process(ramdisk_execute_command); if (!ret) |