Tom Lane wrote: > Bruce Momjian <[EMAIL PROTECTED]> writes: > > it certainly seems like it would be a good idea to have the 8k buffers > > aligned on 4k offsets. > > Why? What mechanism do you expect would find that more efficient?
There was the idea that some OS's can swap the pages in from kernel into the user space. I am not sure any one does that, but it would be interesting to see. Also, a single shared buffer access would be a single virtual memory lookup, rather than two lookups. Not sure, but it would interesting to see. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
