From: Frank Cornelis <Frank.Cornelis@elis.ugent.be>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Frank Cornelis <Frank.Cornelis@elis.ugent.be>
Subject: [PATCH] sched_best_cpu
Date: 13 Aug 2003 15:00:08 +0200 [thread overview]
Message-ID: <1060779608.1723.30.camel@tom> (raw)
Hi,
I ran across the '10 *' stuff (grrr... grrr...) in
linux-2.6.0-test3/kernel/sched.c:sched_best_cpu
I think next patch is more like it.
Frank.
--- sched.c.orig 2003-08-09 06:39:35.000000000 +0200
+++ sched.c 2003-08-13 14:55:05.000000000 +0200
@@ -776,7 +776,7 @@
*/
static int sched_best_cpu(struct task_struct *p)
{
- int i, minload, load, best_cpu, node = 0;
+ int i, minload, load, best_cpu, node = 0, pnode;
unsigned long cpumask;
best_cpu = task_cpu(p);
@@ -784,14 +784,14 @@
return best_cpu;
minload = 10000000;
+ pnode = cpu_to_node(task_cpu(p));
for_each_node_with_cpus(i) {
/*
* Node load is always divided by nr_cpus_node to normalise
* load values in case cpu count differs from node to node.
- * We first multiply node_nr_running by 10 to get a little
- * better resolution.
+ * If the node != our node we add the load of the task.
*/
- load = 10 * atomic_read(&node_nr_running[i]) / nr_cpus_node(i);
+ load = (atomic_read(&node_nr_running[i]) + (i != pnode)) / nr_cpus_node(i);
if (load < minload) {
minload = load;
node = i;
next reply other threads:[~2003-08-13 13:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-13 13:00 Frank Cornelis [this message]
2003-08-13 13:15 ` [PATCH] sched_best_cpu Frank Cornelis
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