how many domains can bind8 support

[Mark.Andrews at nominum.com]

> 
> hi,
>   I want to use redhat7.0 with bind8 as my dns server, the hardware is a Dual
>  PIII 700/256M RAM
> Intel server.
>   Who can tell me how many entry can it support? more than 10,000 or less?
> 
> 

	How long is a piece of string?

	The following if from a FreeBSD machine the sizes should be 
	similar on a linux box.

	(gdb) print sizeof(struct databuf)
	$1 = 36
	(gdb) print sizeof(struct zoneinfo)
	$2 = 324

	each zone takes 324 bytes and they are reallocated in chucks of 64*N
	each individual record has a overhead of 32 bytes (36 - 4).

	There is also additional overhead in terms of a hash tree.

	Mark
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com