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Track the number of threads in each CPU's runqueue.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29786 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rene Gollent
2009-03-29 17:14:52 +00:00
parent 6c990aa4af
commit bd037e94a0
1 changed files with 4 additions and 2 deletions
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src/system/kernel/scheduler/scheduler_affine.cpp
+4 -2
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@@ -37,6 +37,7 @@
// The run queues. Holds the threads ready to run ordered by priority. // The run queues. Holds the threads ready to run ordered by priority.
// One queue per schedulable target (CPU, core, etc.). // One queue per schedulable target (CPU, core, etc.).
static struct thread* sRunQueue[B_MAX_CPU_COUNT]; static struct thread* sRunQueue[B_MAX_CPU_COUNT];
static int32 sRunQueueSize[B_MAX_CPU_COUNT];
static struct thread* sIdleThreads; static struct thread* sIdleThreads;
static cpu_mask_t sIdleCPUs = 0; static cpu_mask_t sIdleCPUs = 0;
@@ -167,7 +168,7 @@ affine_enqueue_in_run_queue(struct thread *thread)
} }
T(EnqueueThread(thread, prev, curr)); T(EnqueueThread(thread, prev, curr));
sRunQueueSize[targetCPU]++;
thread->queue_next = curr; thread->queue_next = curr;
if (prev) if (prev)
prev->queue_next = thread; prev->queue_next = thread;
@@ -203,6 +204,7 @@ dequeue_from_run_queue(struct thread *prevThread, int32 currentCPU)
resultThread = sRunQueue[currentCPU]; resultThread = sRunQueue[currentCPU];
sRunQueue[currentCPU] = resultThread->queue_next; sRunQueue[currentCPU] = resultThread->queue_next;
} }
sRunQueueSize[currentCPU]--;
return resultThread; return resultThread;
} }
@@ -534,7 +536,7 @@ scheduler_affine_init()
{ {
gScheduler = &kAffineOps; gScheduler = &kAffineOps;
memset(sRunQueue, 0, sizeof(sRunQueue)); memset(sRunQueue, 0, sizeof(sRunQueue));
memset(sRunQueueSize, 0, sizeof(sRunQueueSize));
add_debugger_command_etc("run_queue", &dump_run_queue, add_debugger_command_etc("run_queue", &dump_run_queue,
"List threads in run queue", "\nLists threads in run queue", 0); "List threads in run queue", "\nLists threads in run queue", 0);
} }