Re: [PERFORM] Update performance degrades over time

2008-05-15 Thread Jeffrey Baker
On Wed, May 14, 2008 at 6:31 PM, Subbiah Stalin-XCGF84 [EMAIL PROTECTED] wrote: Hi All, We are doing some load tests with our application running postgres 8.2.4. At times we see updates on a table taking longer (around 11-16secs) than expected sub-second response time. The table in question

Re: [PERFORM] Update performance degrades over time

2008-05-15 Thread Subbiah Stalin-XCGF84
-performance@postgresql.org Subject: Re: [PERFORM] Update performance degrades over time On Wed, May 14, 2008 at 6:31 PM, Subbiah Stalin-XCGF84 [EMAIL PROTECTED] wrote: Hi All, We are doing some load tests with our application running postgres 8.2.4. At times we see updates on a table taking

Re: [PERFORM] Update performance degrades over time

2008-05-15 Thread Subbiah Stalin-XCGF84
Subject: Re: [PERFORM] Update performance degrades over time Yes we are updating one of indexed timestamp columns which gets unique value on every update. We tried setting autovacuum_vacuum_scale_factor = 0.1 from default to make autovacuum bit aggressive, we see bloating on both table and it's

[PERFORM] Update performance degrades over time

2008-05-14 Thread Subbiah Stalin-XCGF84
Hi All, We are doing some load tests with our application running postgres 8.2.4. At times we see updates on a table taking longer (around 11-16secs) than expected sub-second response time. The table in question is getting updated constantly through the load tests. In checking the table size