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Code Issues Releases Wiki Activity

设置idle进程的时间片为0，降低调度延迟 (#469)

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LoGin 2023-12-17 21:08:03 +08:00 committed by GitHub
parent 666cffedab
commit 111c5407cc
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1 changed files with 8 additions and 1 deletions
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9
kernel/src/sched/cfs.rs
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@ -137,9 +137,14 @@ impl SchedulerCFS {
fn update_cpu_exec_proc_jiffies(
_priority: SchedPriority,
cfs_queue: &mut CFSQueue,
is_idle: bool,
) -> &mut CFSQueue {
// todo: 引入调度周期以及所有进程的优先权进行计算，然后设置分配给进程的可执行时间
cfs_queue.cpu_exec_proc_jiffies = 10;
if !is_idle {
cfs_queue.cpu_exec_proc_jiffies = 10;
} else {
cfs_queue.cpu_exec_proc_jiffies = 0;
}
return cfs_queue;
}
@ -236,6 +241,7 @@ impl Scheduler for SchedulerCFS {
SchedulerCFS::update_cpu_exec_proc_jiffies(
proc.sched_info().priority(),
current_cpu_queue,
Arc::ptr_eq(&proc, &current_cpu_queue.idle_pcb),
);
}
@ -251,6 +257,7 @@ impl Scheduler for SchedulerCFS {
SchedulerCFS::update_cpu_exec_proc_jiffies(
ProcessManager::current_pcb().sched_info().priority(),
current_cpu_queue,
Arc::ptr_eq(&proc, &current_cpu_queue.idle_pcb),
);
// kdebug!("cpu:{:?}",current_cpu_id);
}