pgbench is not the best tools to benchmark postgres but it’s the one shipped by default with postgres. It does not do a good job for benchmarking your “web apps” SQL wise, it will give you some good indication about how fast is your server for postgres. Here are some results we have collected using theses options : pgbench -Uuser -s 10 -c 10 -t 3000 benchmark We configure servers with RAID 1+0 with write-cache and a battery...
Get the size accurately from postgres local filesystem, i guess there is some sql stuff that can do that but that does the job as well for me : #!/bin/bash /usr/lib/postgresql/8.1/bin/oid2name -U postgres|while read -a e;do name=${e[1]} oid=${e[0]} [[ $oid == "All" || $oid == "Oid" || -z $oid || -z $name ]] && continue typeset -a size size=(`du -s /var/lib/postgresql/8.1/main/base/$oid`) size=${size[0]} printf "%-20s %-20s\n" ${name} ${size} done | sort -n -r -k 2 |awk '{printf "%-20s%20d Mb\n", $1, $2 / 1024}'