On Sep 25, 2006, at 1:03 AM, Peter Eisentraut wrote:

Am Montag, 25. September 2006 04:04 schrieb ITAGAKI Takahiro:
#shared_buffers = 32000kB       # min 128kB or max_connections*16kB
#temp_buffers = 8000kB          # min 800kB
#effective_cache_size = 8000kB

Are there any reasons to continue to use 1000-unit numbers? Megabyte-unit
(32MB and 8MB) seems to be more friendly for users. It increases some
amount of values (4000 vs. 4096), but there is little in it.

The reason with the shared_buffers is that the detection code in initdb has
400kB as minimum value, and it would be pretty complicated to code the
detection code to handle both kB and MB units. If someone wants to try it,
though, please go ahead.

Seems like the unit used for shared_buffers (and others) should be megabytes then with a minimum of 1 (or more). Is less than 1MB granularity really useful here? On modern hardware 1MB of RAM is in the noise.


---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
      choose an index scan if your joining column's datatypes do not

Reply via email to