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Re: sched_yield: delete sysctl_sched_compat_yield

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From: Ingo Molnar <mingo@...>
To: Zhang, Yanmin <yanmin_zhang@...>
Cc: LKML <linux-kernel@...>
Subject: Re: sched_yield: delete sysctl_sched_compat_yield
Date: Tuesday, November 27, 2007 - 7:17 am

* Zhang, Yanmin <yanmin_zhang@linux.intel.com> wrote:


yep, that's known and has been discussed in detail on lkml. Java should 
use something more suitable than sched_yield for its locking. Yield will 
always be dependent on scheduling details and _some_ category of apps 
will always hurt. That's why we offer the sched_compat_yield flag.

	Ingo
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Messages in current thread:
sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Tue Nov 27, 5:33 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Arjan van de Ven, (Tue Nov 27, 6:57 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Thu Nov 29, 10:46 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Thu Nov 29, 11:15 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Thu Nov 29, 11:29 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Fri Nov 30, 6:08 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Mon Dec 3, 5:29 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 6:05 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Tue Dec 4, 2:40 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 12:27 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 4:45 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Mon Dec 3, 5:41 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 6:17 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 5:17 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 5:57 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 6:15 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 6:33 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 7:02 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 7:37 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 9:02 pm)
RE: sched_yield: delete sysctl_sched_compat_yield, David Schwartz, (Mon Dec 3, 1:04 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Chris Friesen, (Mon Dec 3, 1:37 pm)
RE: sched_yield: delete sysctl_sched_compat_yield, David Schwartz, (Mon Dec 3, 3:12 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Chris Friesen, (Mon Dec 3, 3:56 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Mark Lord, (Mon Dec 3, 5:39 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 5:48 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Mark Lord, (Mon Dec 3, 5:57 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 6:05 pm)
RE: sched_yield: delete sysctl_sched_compat_yield, David Schwartz, (Mon Dec 3, 8:30 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 10:09 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Mark Lord, (Mon Dec 3, 6:18 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Mon Dec 3, 6:33 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Mon Dec 3, 8:18 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Mon Dec 3, 5:35 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Zhang, Yanmin, (Fri Nov 30, 12:32 am)
Re: sched_yield: delete sysctl_sched_compat_yield, Arjan van de Ven, (Thu Nov 29, 10:51 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Nick Piggin, (Thu Nov 29, 11:02 pm)
Re: sched_yield: delete sysctl_sched_compat_yield, Ingo Molnar, (Tue Nov 27, 7:17 am)