[PERFORM] Free memory usage Sol10, 8.2.9

2009-11-03 Thread Subbiah Stalin-XCGF84
All, I'm trying to understand the free memory usage and why it falls below 17G sometimes and what could be causing it. Any pointers would be appreciated. r...@prod1 # prtconf System Configuration: Sun Microsystems sun4u Memory size: 32768 Megabytes [postg...@prod1 ~]$ vmstat 5 10 kthr

Re: [PERFORM] Query help

2009-08-05 Thread Subbiah Stalin-XCGF84
t get affected by queries like these. Stalin -Original Message- From: Kevin Grittner [mailto:kevin.gritt...@wicourts.gov] Sent: Tuesday, August 04, 2009 8:57 AM To: Subbiah Stalin-XCGF84; pgsql-performance@postgresql.org Subject: RE: [PERFORM] Query help "Subbiah Stalin-XCGF84" wr

Re: [PERFORM] Query help

2009-08-04 Thread Subbiah Stalin-XCGF84
llect necessary stats on the next occurrence of the slow query. Stalin -Original Message- From: Kevin Grittner [mailto:kevin.gritt...@wicourts.gov] Sent: Tuesday, August 04, 2009 8:57 AM To: Subbiah Stalin-XCGF84; pgsql-performance@postgresql.org Subject: RE: [PERFORM] Query help &qu

Re: [PERFORM] Query help

2009-08-03 Thread Subbiah Stalin-XCGF84
s back to fast mode. If it had used a different execution plan than the above, how do I list all execution plans executed for a given SQL. Thanks, Stalin -Original Message- From: Kevin Grittner [mailto:kevin.gritt...@wicourts.gov] Sent: Monday, August 03, 2009 1:45 PM To: Subbiah Stalin-XCGF84; pg

Re: [PERFORM] Query help

2009-08-03 Thread Subbiah Stalin-XCGF84
with 10 disks (5+5). Let me know if you need any other information. Thanks Kevin. Stalin -Original Message- From: Kevin Grittner [mailto:kevin.gritt...@wicourts.gov] Sent: Monday, August 03, 2009 12:48 PM To: Subbiah Stalin-XCGF84; pgsql-performance@postgresql.org Subject: Re: [PERFORM

[PERFORM] Query help

2009-08-03 Thread Subbiah Stalin-XCGF84
All, Not sure what's wrong in below execution plan but at times the query runs for 5 minutes to complete and after a while it runs within a second or two. Here is explain analyze out of the query. SELECT OBJECTS.ID,OBJECTS.NAME,OBJECTS.TYPE,OBJECTS.STATUS,OBJECTS.ALTNAME,OBJE CTS.DOMAINID,OBJ

Re: [PERFORM] Sort performance

2009-01-29 Thread Subbiah Stalin-XCGF84
eg.st...@enterprisedb.com] On Behalf Of Gregory Stark Sent: Thursday, January 29, 2009 3:36 PM To: Robert Haas Cc: Subbiah Stalin-XCGF84; pgsql-performance@postgresql.org Subject: Re: Sort performance Robert Haas writes: > On Thu, Jan 29, 2009 at 3:15 PM, Subbiah Stalin-XCGF84 > wrote: >>

Re: [PERFORM] Sort performance

2009-01-29 Thread Subbiah Stalin-XCGF84
t never went beyond 450M. Once it reaches 450M it spends some cycles before I see the output. I guess some sort of merge operation happens to get the first 500 records out. Thanks, Stalin -Original Message- From: Robert Haas [mailto:robertmh...@gmail.com] Sent: Thursday, January 29, 2009 3

[PERFORM] Sort performance

2009-01-29 Thread Subbiah Stalin-XCGF84
Hi All, I'm in the process of tuning a query that does a sort on a huge dataset. With work_mem set to 2M, i see the sort operation spilling to disk writing upto 430MB and then return the first 500 rows. Our query is of the sort select co1, col2... from table where col1 like 'aa%' order col1 lim

Re: [PERFORM] Update performance degrades over time

2008-05-15 Thread Subbiah Stalin-XCGF84
to:[EMAIL PROTECTED] Sent: Thursday, May 15, 2008 6:56 AM To: Subbiah Stalin-XCGF84; pgsql-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 do

Re: [PERFORM] Update performance degrades over time

2008-05-15 Thread Subbiah Stalin-XCGF84
d_u1 on tablexy (cost=0.00..8.51 rows=1 width=194) (actual time=0.162..0.166 rows=1 loops=1) Index Cond: ((id)::text = '32xka8axki8'::text) Thanks in advance. Stalin -Original Message- From: Jeffrey Baker [mailto:[EMAIL PROTECTED] Sent: Thursday, May 15, 2008 6:56 AM To: Sub

[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 incl

[PERFORM] RESEND:Postgres with Sun Cluster HA/Solaris 10

2007-09-05 Thread Subbiah Stalin-XCGF84
Hello All, We have a postgres setup on solaris 10 with sun cluster for HA purposes. 2 nodes are configured in the cluster in active-passive mode with pg_data stored on external storage. Everything is working as expected however, when we either switch the resource group from one node to other or rg