Re: [Fwd: MySQL Benchmark page - Problem with vacuum() in PostgreSQL]
От | Michael Widenius |
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Тема | Re: [Fwd: MySQL Benchmark page - Problem with vacuum() in PostgreSQL] |
Дата | |
Msg-id | 200108071952.f77JqaZ32158@tik.mysql.fi обсуждение исходный текст |
Ответ на | Re: [Fwd: MySQL Benchmark page - Problem with vacuum() in PostgreSQL] (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: [Fwd: MySQL Benchmark page - Problem with vacuum() in
PostgreSQL]
|
Список | pgsql-general |
Hi! >>>>> "Tom" == Tom Lane <tgl@sss.pgh.pa.us> writes: Tom> Justin Clift <justin@postgresql.org> forwards: >> The problem was that when we run the benchmark with the --fast option, >> which basicly does a vacuum() between after each batch of updates, >> postmaster started to fill up disk with log files during one of the >> vacuum() runs and didn't stop until the disk was full. Tom> See Tom> http://www.ca.postgresql.org/mhonarc/pgsql-patches/2001-06/msg00061.html Tom> regards, tom lane Thanks! I will look at this as soon as I am back home from my vacation and then do a new benchmark run and update the benchmark page. Regards, Monty PS: If anyone has any ideas of things that we have missed in our current benchmark pages, please email them to Anna so that she can add these to the next generation of the benchmark suite. Some things that I know we have missed in the single user benchmark are: - Sub select (all different forms of sub select, with a comparison to normal selects for those select that can be changed to normal selects) - Foreign keys (which should contain a comparison with multi-table-delete) - Transactions - Rollback With comparison I mean that there should be at least one test that makes it easy for the user to see which construct is better for this database.
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