Module: xenomai-head
Branch: master
Commit: c847aa98f44ba3ba734a373238f572fe8c65bb3b
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=c847aa98f44ba3ba734a373238f572fe8c65bb3b
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Aug 26 17:53:36 2010 +0200
x86: increase SMP calibration value
---
include/asm-x86/calibration.h | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/asm-x86/calibration.h b/include/asm-x86/calibration.h
index bef4ad3..fa3b3b8 100644
--- a/include/asm-x86/calibration.h
+++ b/include/asm-x86/calibration.h
@@ -33,14 +33,17 @@ static inline unsigned long xnarch_get_sched_latency (void)
#if CONFIG_XENO_OPT_TIMING_SCHEDLAT != 0
sched_latency = CONFIG_XENO_OPT_TIMING_SCHEDLAT;
#else
-#ifdef CONFIG_X86_LOCAL_APIC
+#ifdef CONFIG_SMP
+ sched_latency = 3350;
+#elif defined(CONFIG_X86_LOCAL_APIC)
sched_latency = 1000;
#else /* !CONFIG_X86_LOCAL_APIC */
/*
- * Use the bogomips formula to identify low-end x86 boards when using
- * the 8254 PIT. The following is still grossly experimental and needs
- * work (i.e. more specific cases), but the approach is definitely
- * saner than previous attempts to guess such value dynamically.
+ * Use the bogomips formula to identify low-end x86 boards
+ * when using the 8254 PIT. The following is still grossly
+ * experimental and needs work (i.e. more specific cases), but
+ * the approach is definitely saner than previous attempts to
+ * guess such value dynamically.
*/
#define __bogomips (current_cpu_data.loops_per_jiffy/(500000/HZ))
sched_latency = (__bogomips < 250 ? 17000 :
_______________________________________________
Xenomai-git mailing list
Xenomai-git@gna.org
https://mail.gna.org/listinfo/xenomai-git
