[PERFORM] memory allocation

[Michael Ryan S. Puncia]

Hi everyone .   How much memory should I give to the kernel and postgresql   I have 1G of memory and 120G of HD   Shared Buffers = ? Vacuum Mem = ? SHMAX = ?   Sorry I have so many question .I am a newbie L   I have 30G of data At least 30 simultaneus users But I will use it only for query with lot of sorting   thanks