Hi all, I have a performance problem and I don't know where is my bottleneck. I have postgresql 7.4.2 running on a debian server with kernel 2.4.26-1-686-smp with two Xeon(TM) at 2.80GHz and 4GB of RAM and a RAID 5 made with SCSI disks. Maybe its not the latest hardware but I think it's not that bad. My problem is that the general performance is not good enough and I don't know where is the bottleneck. It could be because the queries are not optimized as they should be, but I also think it can be a postgresql configuration problem or hardware problem (HDs not beeing fast enough, not enough RAM, ... ) The configuration of postgresql is the default, I tried to tune the postgresql.conf and the results where disappointing, so I left again the default values. When I do top I get: top - 19:10:24 up 452 days, 15:48, 4 users, load average: 6.31, 6.27, 6.52 Tasks: 91 total, 8 running, 83 sleeping, 0 stopped, 0 zombie Cpu(s): 24.8% user, 15.4% system, 0.0% nice, 59.9% idle Mem: 3748956k total, 3629252k used, 119704k free, 57604k buffers Swap: 2097136k total, 14188k used, 2082948k free, 3303620k cached Most of the time the idle value is even higher than 60%. I know it's a problem with a very big scope, but could you give me a hint about where I should look to? Thank you very much -- Arnau
