Changeset d0c82c5 in mainline for kernel/generic/src/proc/scheduler.c

Timestamp:

2010-06-16T19:44:53Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

5387807

Parents:

5954241

Message:

perfect CPU cycles accounting, cherry-picked and adopted from lp:~ersin/helenos/measure2

File:

• kernel/generic/src/proc/scheduler.c (modified) (2 diffs)

kernel/generic/src/proc/scheduler.c

@@ -193 +193 @@
                  * This improves energy saving and hyperthreading.
                  */
-                
-                 /* Mark CPU as it was idle this clock tick */
                 irq_spinlock_lock(&CPU->lock, false);
                 CPU->idle = true;
                 irq_spinlock_unlock(&CPU->lock, false);
-                
                 interrupts_enable();
+                
                 /*
                  * An interrupt might occur right now and wake up a thread.
@@ -386 +384 @@
         as_t *old_as = AS;
         
-        ASSERT(!THREAD || irq_spinlock_locked(&THREAD->lock));
+        ASSERT((!THREAD) || (irq_spinlock_locked(&THREAD->lock)));
         ASSERT(CPU != NULL);