| Date | Tue, 4 Jun 2013 10:56:56 -0400 | From | Jeff Layton <> | Subject | Re: [PATCH v1 11/11] locks: give the blocked_hash its own spinlock |
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On Tue, 4 Jun 2013 07:46:40 -0700 Christoph Hellwig <hch@infradead.org> wrote:
> Having RCU for modification mostly workloads never is a good idea, so > I don't think it makes sense to mention it here. > > If you care about the overhead it's worth trying to use per-cpu lists, > though. >
Yeah, I looked at those too in an earlier set and it did help some. Moving to a hashtable for the blocked_list really seemed to help the most there, but percpu lists with lglocks or something might help a lot on the file_lock_list.
-- Jeff Layton <jlayton@redhat.com>
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