On 21/11/13 14:57, - wrote:
Are others seeing the named process run at 130-180% on RHEL 6? We've
No. Our RHEL6 boxes rune fine.
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What version of BIND did you have on RHEL5? Does your RHEL6 named get any
better if you try ‘-U #’ (where # is half or less your cpu count)?
_S
On Nov 21, 2013, at 7:35 AM, Phil Mayers p.may...@imperial.ac.uk wrote:
On 21/11/13 14:57, - wrote:
Are others seeing the named process run at
What about the information from top? When comparing RHEL5 and RHEL6 systems,
I would compare the total CPU usage of the server (out of 100% not 2400% or
1600%).
Since the hardware is different, comparing a 16 named threads on a 16 core
box at ???MHz against a 24 core box with 24 named
On 21/11/13 17:30, Sean Channel wrote:
What version of BIND did you have on RHEL5? Does your RHEL6 named get
any better if you try ‘-U #’ (where # is half or less your cpu
count)?
We moved from RHEL5 9.8.3 to RHEL6 9.8.3, and saw no performance change.
We then upgraded through various
Phil Mayers wrote the following on 11/21/2013 9:35 AM:
On 21/11/13 14:57, - wrote:
Are others seeing the named process run at 130-180% on RHEL 6? We've
No. Our RHEL6 boxes rune fine.
Fine here as well...
Here is a decently busy CentOS 6 system w/ latest BIND from RPM, 2x Xeon
CPU E5-2640
We recently upgraded one of our DNS servers to RHEL 6. The other two
servers are running RHEL 5. The new system is showing much higher CPU load
than the other two (RHEL 5 machines sit around 11-15%). I am not sure if
this is related to the OS versions or something else. The build procedure
for the
Daniel, what do you see the load as? I see 4.6% CPU usage (100% possible
- 95.4% idle).
I'm not sure which versions of BIND you were using on RHEL5, but the
newer versions do tend to use more CPU usage (I'll assume due to new
features, patches, etc in the BIND code).
--Blake
- wrote the
-Original Message-
From: Blake Hudson bl...@ispn.net
Date: Wednesday, November 20, 2013 11:03 AM
To: bind-users@lists.isc.org bind-users@lists.isc.org
Subject: Re: RHEL 6 CPU load
Daniel, what do you see the load as? I see 4.6% CPU usage (100% possible
- 95.4% idle).
Wondering the same
- wrote the following on 11/20/2013 10:46 AM:
Daniel, what do you see the load as? I see 4.6% CPU usage (100% possible
- 95.4% idle).
Wondering the same. Don't consider 0.00 high load. ;-)
:-) I guess I need to be a little better at explaining my self. It
made perfect sense to me.
I am
Depending on your OS and Bind settings, Bind may be performing IPv6/
queries in parallel to IPv4/A queries. If IPv6 is disabled on your RHEL5
server I suspect they may only be performing IPv4/A queries during
recursion. You might check if this is, at least in part, responsible for the
On 20.11.13 09:46, - wrote:
Daniel, what do you see the load as? I see 4.6% CPU usage (100% possible
- 95.4% idle).
Wondering the same. Don't consider 0.00 high load. ;-)
:-) I guess I need to be a little better at explaining my self. It
made perfect sense to me.
I am talking about the
- wrote the following on 11/20/2013 12:30 PM:
Depending on your OS and Bind settings, Bind may be performing IPv6/
queries in parallel to IPv4/A queries. If IPv6 is disabled on your RHEL5
server I suspect they may only be performing IPv4/A queries during
recursion. You might check if this
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