Re: Sorting performance vs. MySQL

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От
Scott Marlowe
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Re: Sorting performance vs. MySQL
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dcc563d11002221139n3c4e5af0pfc6a823894c25439@mail.gmail.com
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Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Pavel Stehule <pavel.stehule@gmail.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Tom Lane <tgl@sss.pgh.pa.us>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Alban Hertroys <dalroi@solfertje.student.utwente.nl>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Frank Heikens <frankheikens@mac.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Frank Heikens <frankheikens@mac.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Alvaro Herrera <alvherre@commandprompt.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Alvaro Herrera <alvherre@commandprompt.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Frank Heikens <frankheikens@mac.com>
Re: Sorting performance vs. MySQL Richard Broersma <richard.broersma@gmail.com>
Re: Sorting performance vs. MySQL Frank Heikens <frankheikens@mac.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL "Igor Neyman" <ineyman@perceptron.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Alex Hunsaker <badalex@gmail.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Tom Lane <tgl@sss.pgh.pa.us>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Yeb Havinga <yebhavinga@gmail.com>
Re: Sorting performance vs. MySQL Tom Lane <tgl@sss.pgh.pa.us>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Tom Lane <tgl@sss.pgh.pa.us>
Re: Sorting performance vs. MySQL Alex Hunsaker <badalex@gmail.com>
Re: Sorting performance vs. MySQL Baron Schwartz <baron@xaprb.com>
Re: Sorting performance vs. MySQL John Gage <jsmgage@numericable.fr>
Re: Sorting performance vs. MySQL Scott Marlowe <scott.marlowe@gmail.com>
Re: Sorting performance vs. MySQL Greg Stark <gsstark@mit.edu>
Re: Sorting performance vs. MySQL Yeb Havinga <yebhavinga@gmail.com>
Re: Sorting performance vs. MySQL Greg Stark <gsstark@mit.edu>
Re: Sorting performance vs. MySQL Yang Zhang <yanghatespam@gmail.com>
Re: Sorting performance vs. MySQL Alex Hunsaker <badalex@gmail.com>
On Mon, Feb 22, 2010 at 12:30 PM, Yang Zhang  wrote:
> This isn't some microbenchmark. This is part of our actual analytical
> application. We're running large-scale graph partitioning algorithms.

It's important to see how it runs if you can fit more / most of the
data set into memory by cranking up work_mem to something really big
(like a gigabyte or two) and if the query planner can switch to some
sort of hash algorithm.

Also, can you cluster the table on transactionid ?
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