The offline scheduler named BT sched is based on the CFS scheduler. We
also use the rb-tree as the run queue to save the runnable tasks. And the
vruntime concept is also used in the offline scheduler. And the priority
of offline scheduler is from 140 to 179. So now the schedulers in the
kernel are as follows: stop, RT, CFS, BT and idle.
Signed-off-by: Xiaoming Gao <newtongao@tencent.com>
Signed-off-by: Hua Liu <shookliu@tencent.com>
Signed-off-by: Xiaogguang Chen <xiaoggchen@tencent.com>
Signed-off-by: Zhiguang Peng <zgpeng@tencent.com>
Signed-off-by: Bin Fan <tombinfan@tencent.com>
Signed-off-by: He Chen <heddchen@tencent.com>
The value of the cpuset.stat process field will be abnormal in
some scenarios. The reason for this problem is that the sum of
process_counts may be negative for several cpus.
Signed-off-by: brookxu <brookxu@tencent.com>
create a pid mapping data to parent processes in file /proc/$PID/status
create a proc file (/proc/$PID/hostinfo), mapping pid data to host pid
Signed-off-by: Lorin Liu <lorinliu@tencent.com>
zgpeng