Messages in this thread | | | Subject | Re: 8-CPU (SMP) #s for lockfree rtcache | From | Robert Love <> | Date | 28 May 2002 08:49:58 -0700 |
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On Tue, 2002-05-28 at 05:58, Dipankar Sarma wrote:
> > Thanks, I am convinced RCU is the way to go.
I am not. :P
> Well, the last time RCU was discussed, Linus said that he would > like to see someplace where RCU clearly helps.
I agree the numbers posted are nice, but I remain skeptical like Linus. Sure, the locking overhead is nearly gone in the profiled function where RCU is used. But the overhead has just been _moved_ to wherever the RCU work is now done. Any benchmark needs to include the damage done there, too.
I also balk at implicit locking...
Robert Love
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