On Thu, Jun 6, 2013 at 4:35 PM, Joshua D. Drake <jd@xxxxxxxxxxxxxxxxx> wrote: > > Hello, > > I had the distinct displeasure of staying up entirely too late with a > customer this week because they upgraded to 12.04 and immediately > experienced a huge performance regression. In the process they also upgraded > to PostgreSQL 9.1 from 8.4. There were a lot of knobs to change/fix/modify > because of this. However, nothing I did fixed the problem. Until... I > upgraded the kernel. > > Upgrading from 3.2Precise to the 3.9.4 kernel produced the following > results: I've since heard that 3.4 also fixes this issue as well. What are you using for your IO on these boxes? -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
