On Fri, May 16, 2014 at 12:24:35PM +0800, Michael wang wrote: > Hey, Mike :) > > On 05/16/2014 10:51 AM, Mike Galbraith wrote: > > On Fri, 2014-05-16 at 10:23 +0800, Michael wang wrote: > > > >> But we found that one difference when group get deeper is the tasks of > >> that group become to gathered on CPU more often, some time all the > >> dbench instances was running on the same CPU, this won't happen for l1 > >> group, may could explain why dbench could not get CPU more than 100% any > >> more. > > > > Right. I played a little (sane groups), saw load balancing as well. > > Yeah, now we found that even l2 groups will face the same issue, allow > me to re-list the details here:
Hmm, that _should_ more or less work and does indeed suggest there's something iffy.
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