On Sat, Mar 30, 2013 at 10:08:44PM +0800, 赖文豫 wrote: > As we know, SSDs are widely used in various kinds of applications. But the > SMGR > in PostgreSQL still only > support magnetic disk. How do we make full use of SSDs to improve the > performance of PostgreSQL?
When the storage manager (SMGR) says magnetic disk, it is talking about read/write media with random access capabillity, vs. something like write-only media, which was originally supported in the code. Postgres works just fine with SSDs; the only adjustment you might want to make is to reduce random_page_cost. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
