kernel/scheduler/scheduler_simple_smp.cpp

43 // The run queue. Holds the threads ready to run ordered by priority.
71 		kprintf("thread    id      priority name\n");
74 				thread->id, thread->priority, thread->name);
89 		targetPriority = gCPU[targetCPU].running_thread->priority;
93 	// Choose the CPU running the lowest priority thread. Favor the current CPU
100 		targetPriority = gCPU[currentCPU].running_thread->priority;
108 			int32 cpuPriority = gCPU[cpu].running_thread->priority;
133 			&& curr->priority >= thread->next_priority;
149 	thread->next_priority = thread->priority;
151 	if (thread->priority != B_IDLE_PRIORITY) {
155 		// a higher priority.
160 		// If the target CPU runs a thread with a lower priority, tell it to
162 		if (thread->priority > targetPriority) {
184 /*!	Sets the priority of a thread.
188 set_thread_priority(Thread *thread, int32 priority)
190 	if (priority == thread->priority)
194 		thread->priority = priority;
225 	// set priority and re-insert
226 	thread->priority = thread->next_priority = priority;
236 	// per thread priority, though.
238 	if (thread->priority >= B_REAL_TIME_DISPLAY_PRIORITY)
240 	if (thread->priority >= B_DISPLAY_PRIORITY)
273 			&& oldThread->priority != B_IDLE_PRIORITY) {
287 				oldThread->id, oldThread->priority));
307 		while (nextThread != NULL && nextThread->priority > B_IDLE_PRIORITY) {
320 				&& nextThread->priority > B_IDLE_PRIORITY) {
339 				if (nextThread->priority >= B_FIRST_REAL_TIME_PRIORITY)
342 				// find next thread with lower priority
345 				int32 priority = nextThread->priority;
348 					&& priority == lowerNextThread->priority) {
354 					|| lowerNextThread->priority == B_IDLE_PRIORITY)
357 				int32 priorityDiff = priority - lowerNextThread->priority;
362 				// (twice as probable per priority level)