A change on Schedduler of Kernel for better performance

scheduler.kernel.use.RR.diff

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index daff72f00..857577ea1 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4572,7 +4572,16 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
 	/*
 	 * Make sure we do not leak PI boosting priority to the child.
 	 */
-	p->prio = current->normal_prio;
+ /// Kernel Config from OS Running  get config of existing linux running  
+ // # cp /boot/config-`uname -r` .config
+
+	// p->prio = current->normal_prio;
+	/* Lorenzo Nava: force policy to RR */
+	if (p->policy == SCHED_NORMAL) {
+		p->prio = current->normal_prio - NICE_WIDTH -
+			PRIO_TO_NICE(current->static_prio);
+		p->normal_prio = p->prio;
+		p->rt_priority = p->prio;
+		p->policy = SCHED_RR;
+		p->static_prio = NICE_TO_PRIO(0);
+	}
 
 	uclamp_fork(p);
 
@@ -4607,6 +4616,8 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
 	init_entity_runnable_average(&p->se);
 
 
+
+
 #ifdef CONFIG_SCHED_INFO
 	if (likely(sched_info_on()))
 		memset(&p->sched_info, 0, sizeof(p->sched_info));
@@ -7669,6 +7680,24 @@ static int _sched_setscheduler(struct task_struct *p, int policy,
 		attr.sched_policy = policy;
 	}
 
+	/* Lorenzo Nava: force policy to RR */
+	if (p->policy == SCHED_NORMAL) {
+		p->prio = current->normal_prio - NICE_WIDTH -
+			PRIO_TO_NICE(current->static_prio);
+		p->normal_prio = p->prio;
+		p->rt_priority = p->prio;
+		p->policy = SCHED_RR;
+		p->static_prio = NICE_TO_PRIO(0);
+	}
+
+	/* Lorenzo Nava: force policy of process to RR */
+	if (attr.sched_policy == SCHED_NORMAL) {
+		attr.sched_priority = param->sched_priority -
+			NICE_WIDTH - attr.sched_nice;
+		attr.sched_policy = SCHED_RR;
+	}
+
+
 	return __sched_setscheduler(p, &attr, check, true);
 }
 /**