RHEL 6 CPU load

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>> 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 named process which can run up to 180% during
the day. When it is doing this the system still has very low load.

>
>> 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 following on 11/20/2013 9:37 AM:
>>
>> 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 new system is completely
>> different than before which could also be the cause. Any ideas why this
>> could be happening?
>
>
> Were the configure options the same when you built on 5.x vs 6.x? You can
> see that with named -V.
>
> You mention a different build procedure -- do you mean named or OS? As a
> first step I would focus on those differences. FWIW I have moved about 30
> recursive resolvers with the highest iterative workload I've had the
> privilege of managing to centos 6.x and had no ill effects so I don't
> think it's simply the OS itself.

Again, it made perfect sense to me.

I am talking about the OS builds. Bind is compiled with the exact same
options and the configs for this system is identical to the other
slave server.

The issue for me is the HIGH CPU use for named. It is much lower for
our RHEL 5 systems.

--
Daniel