> The common wisdom of shared buffers is around 6-10% of available memory. > Your proposal below is about 50% of memory. > > I'm not sure what the original numbers actually meant, they are quite large. > I will try to reduce shared buffer to 1536 [1.87 Mb].
> also effective cache is the sum of kernel buffers + shared_buffers so it > should be bigger than shared buffers. also make the effective cache to 2097152 [2 Gb]. I will give you the result , because tomorrow [4/12/05] will be the official day of my hospital [which have more than 1700 OPD patient/day]. > Also turning hyperthreading off may help, it is unlikely it is doing any > good unless you are running a relatively new (2.6.x) kernel. Why , could you give me the reason? > I presume you are vacuuming on a regular basis? Yes , vacuumdb daily. ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]