On 08/25/2011 02:33 PM, Paolo Bonzini wrote: > On 08/25/2011 08:03 AM, Lai Jiangshan wrote: >> >> My synchronize_rcu() is slower. (will be optimized) >> At the sametime, I test Paolo's patch, I don't know why it slowdowns >> synchronize_rcu() >> in my box. > > I think you can try changing the number of busy wait cycles before it starts > using the futex.
>I was measuring with 10 readers, not 3. It makes sense to wait more with >fewer readers. But my box just has 4 cores(i5 760). Lai > > Paolo > _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
