Re: [PERFORM] Poor SQL performance

2005-09-05 Thread Alexander Kirpa
Place 'and date(r.site_timestamp) = h.first_order_date' after WHERE Best regards, Alexander Kirpa ---(end of broadcast)--- TIP 6: explain analyze is your friend

Re: [PERFORM] Data Warehousing Tuning

2005-07-11 Thread Alexander Kirpa
pt/pg_xlog on this drives. Best regards, Alexander Kirpa ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org

Re: [PERFORM] How to improve db performance with $7K?

2005-03-27 Thread Alexander Kirpa
00. 3. SCSI 320 Cable set. 4. Old drives (2) use for OS (optional DB log) files in RAID1 mode, possible over one channel of MegaRAID. 5. New drives (4+) in RAID10 mode for DB 6. Start tuning Postres + OS: more shared RAM etc. Best regards, Alexander Kirpa ---(end of broa

Re: [PERFORM] Postgres on RAID5

2005-03-13 Thread Alexander Kirpa
SQL 3. If possible migrate from RAID5 to RAID10. 4. Add (if need) 2 new drive for OS and use ALL 20x9GB drive for DB storage. 5. Remove CDROM from work configuration and start use this scsi channel. Best regards, Alexander Kirpa ---(end of broadcast

Re: [PERFORM] Processor optimization compile options?

2004-12-20 Thread Alexander Kirpa
'CFLAGS= -O3 -pipe -mfpmath=sse -msse2 -msse -mmmx -march=pentium4 -mcpu=pentium4' - w/o any problem. As I remember improvement as always task depended and have 30-100%. Best regards, Alexander Kirpa