performance issues with 9.5.0-P1

[JINMEI Tatuya / 神明達哉]

At Mon, 14 Jul 2008 12:48:43 -0400,
Jim Gogan <gogan at email.unc.edu> wrote:

> Wondering if anyone else has encountered what I would consider 
> significant performance issues with BIND 9.5.0-P1.   On three different 
> Solaris systems, each one averaging about 270-280 queries per second, 
> since the patch install, the load average has gone from acceptable to 
> not-so-much (now averaging between 2-4) with named hitting between 
> 49-90% of the CPU.
> 
> Just curious to see if anyone else is seeing this or if it's just us.

If you have upgraded from 9.4 or 9.3 (or even older) to 9.5.0-P1,
please check your max-cache-size value.  9.5 has a pretty small
default value (32MB) for middle-to-large scale caching servers, and it
can make the server unnecessarily heavy-load.

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.