Module: xenomai-rpm
Branch: for-upstream
Commit: be495b8125e87a5690940493e3b483f84fe4bb72
URL:    
http://git.xenomai.org/?p=xenomai-rpm.git;a=commit;h=be495b8125e87a5690940493e3b483f84fe4bb72

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 :


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