On 01/04/2011 08:14 AM, KOSAKI Motohiro wrote:
Also, If pthread_cond_signal() call sys_yield_to imlicitly, we can avoid almost Nehalem (and other P2P cache arch) lock unfairness problem. (probaby creating pthread_condattr_setautoyield_np or similar knob is good one)
Often, the thread calling pthread_cond_signal() wants to continue executing, not yield.
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