On Wed, Jun 8, 2011 at 11:24 PM, Robert Haas <robertmh...@gmail.com> wrote: > I did a brief literature search for papers on breaking the > WAL-serialization bottleneck today and hit upon this: > > Aether: A Scalable Approach to Logging, Ryan Johnson, Ippokratis Pandis, et > al. > http://infoscience.epfl.ch/record/149436/files/vldb10aether.pdf > > Section 5 appears to be the most relevant to our problems with WALInsertLock. > > They reject the approach that I proposed, wherein WAL is generated by > individual backends in their own queues and serialized later: "While a > total ordering is not technically required for correctness, valid > partial orders tend to be too complex and interdependent to be worth > pursuing as a performance optimization"; see also appendix A.5, which > may be succinctly summarized as "no one does that".
heh -- makes total sense. great stuff. merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
