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[Bug 524281] Re: Tens of wakes per second in "[kernel scheduler] Load balancing tick" on Core 2 Duo even with only 1 core enabled

 

Following up on one of the earlier mails containing a patch from Brian Rogers
Patch Details:
http://launchpadlibrarian.net/52089149/0001-Apply-patch-from-http-lkml.org-lkml-2010-7-8-122.patch

OK, in 2.6.35, linux-source, on line 328 in /kernel/time/tick-sched.c, this is what I see:
         if (rcu_needs_cpu(cpu) || printk_needs_cpu(cpu) ||
<328>             arch_needs_cpu(cpu)) {
                 next_jiffies = last_jiffies + 1;
                 delta_jiffies = 1;


whereas in 2.6.36 linux-source, I see this:
         if (rcu_needs_cpu(cpu) || printk_needs_cpu(cpu) ||
<328>             arch_needs_cpu(cpu)) {
                 next_jiffies = last_jiffies + 1;
                 delta_jiffies = 1;


OK. so this does not help. -:(
Still sharing the results of my findings.

-- 
Tens of wakes per second in "[kernel scheduler] Load balancing tick" on Core 2 Duo even with only 1 core enabled
https://bugs.launchpad.net/bugs/524281
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