linux内核中队列

When we do migration, one process will be migrated from one source CPU’s runqueue to destination CPU’s run queue. What is the virtual run time (if CFS is used) after it is moved into destination CPU’s run queue?

进行迁移时，一个进程将从一个源CPU的运行队列迁移到目标CPU的运行队列。 将虚拟移动到目标CPU的运行队列后，其虚拟运行时间是多少（如果使用了CFS）？

When the process is dequeued from source CPU’s run queue, its vruntime will minus the minimum vruntime of source CPU’s run queue.

当进程从源CPU的运行队列中出队时，其vruntime将减去源CPU的运行队列的最小vruntime。

When the process is enqueued destination CPU’s run queue, its vruntime will plus the minimum vruntime of destination CPU’s run queue.

将进程加入目标CPU的运行队列后，其vruntime将加上目标CPU的运行队列的最小vruntime。

enqueue_entity (...) {
    ...
    se->vruntime += cfs_rq->min_vruntime;
    ...
    }
    
    dequeue_entity(...) {
    ...
    se->vruntime -= cfs_rq->min_vruntime;
    ...
    }

翻译自: https://www.systutorials.com/what-is-the-vruntime-of-one-process-after-it-is-moved-into-another-run-queue-in-linux-kernel/

linux内核中队列