Hi hackers,
What do you think about improving cache replacement clock-sweep algorithm in
PostgreSQL with adaptive version proposed in this article:
http://www-cs.stanford.edu/~sbansal/pubs/fast04.pdf
Are there some well known drawbacks of this approach or it will be interesting
to adopt this algorithm to PostgreSQL and measure it impact om performance
under different workloads?
I find this ten years old thread:
http://www.postgresql.org/message-id/flat/[email protected]#[email protected]
but it mostly discus possible patent issues with another algorithm ARC (CAR is
inspired by ARC, but it is different algorithm).
As far as I know there are several problems with current clock-sweep algorithm
in PostgreSQL, especially for very large caches.
May be CAR can address some of them?
--
Konstantin Knizhnik
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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