Vivek Khera wrote: > >>>>> "BM" == Bruce Momjian <[EMAIL PROTECTED]> writes: > > > BM> The 32k number is from Tatsuo testing a few years ago. > > Can you verify for me that these parameters in postgresql.conf are > based on the BLCKSZ (ie one buffer is the size of the BLCKSIZ macro): > > shared_buffers > effective_cache_size > > Logically it makes sense, but I want to be sure I'm adjusting my > postgresql.conf parameters accordingly when I try different block > sizes.
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Uh, yes, I think they have to be the same because they are pages in the shared buffer cache, not disk blocks. -- 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 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
