From: Jialin Zhang zhangjialin11@huawei.com

hulk inclusion category: performance bugzilla: https://gitee.com/openeuler/kernel/issues/I9JZXF CVE: NA

--------------------------------

This option optimizes the scheduler for common desktop workloads by automatically creating and populating task groups. This separation of workloads isolates aggressive CPU burners (like build jobs) from desktop applications. Task group autogeneration is currently based upon task session.

We do not need this for mostly server workloads, so just disable by default. If you need this feature really, just enable it by sysctl:

sysctl -w kernel.sched_autogroup_enabled=1

Signed-off-by: Jialin Zhang zhangjialin11@huawei.com Reviewed-by: Xie XiuQi xiexiuqi@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Signed-off-by: Zhang Qiao zhangqiao22@huawei.com --- kernel/sched/autogroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c index 991fc9002535..e2c2d4e5735f 100644 --- a/kernel/sched/autogroup.c +++ b/kernel/sched/autogroup.c @@ -4,7 +4,7 @@ * Auto-group scheduling implementation: */

-unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1; +unsigned int __read_mostly sysctl_sched_autogroup_enabled; static struct autogroup autogroup_default; static atomic_t autogroup_seq_nr;