Changeset cce6acf in mainline for kernel/generic/src/proc/scheduler.c

Timestamp:

2006-12-13T12:10:23Z (18 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

e9db6f9e

Parents:

7e13972

Message:

thread CPU cycles accounting

File:

• kernel/generic/src/proc/scheduler.c (modified) (3 diffs)

kernel/generic/src/proc/scheduler.c

@@ -48 +48 @@
 #include <arch/asm.h>
 #include <arch/faddr.h>
+#include <arch/cycle.h>
 #include <atomic.h>
 #include <synch/spinlock.h>
@@ -309 +310 @@
         if (THREAD) {
                 spinlock_lock(&THREAD->lock);
+                
+                /* Update thread accounting */
+                THREAD->cycles += get_cycle() - THREAD->last_cycle;
+                
 #ifndef CONFIG_FPU_LAZY
                 fpu_context_save(THREAD->saved_fpu_context);
@@ -316 +321 @@
                          * This is the place where threads leave scheduler();
                          */
+                        
+                        /* Save current CPU cycle */
+                        THREAD->last_cycle = get_cycle();
+                        
                         spinlock_unlock(&THREAD->lock);
                         interrupts_restore(THREAD->saved_context.ipl);