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 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?
> top
last pid: 9651; load avg: 0.00, 0.00, 0.00; up
2+01:08:04 08:31:10
647 processes: 1 running, 646 sleeping
CPU states: 1.4% user, 0.0% nice, 3.2% system, 95.4% idle, 0.0% iowait
Kernel: 137575 ctxsw, 7682 intr
Memory: 2023M used, 21G free, 318M buffers, 747M cached
Swap: 26G free
PID USERNAME THR PRI NICE SIZE RES SHR STATE TIME CPU COMMAND
8566 root 27 20 0 1921M 296M 2848K sleep 26:56 132% named
> rndc status
version: 9.9.4-P1 () <id:07aaf1ef>
CPUs found: 24
worker threads: 24
UDP listeners per interface: 24
number of zones: 169
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is ON
recursive clients: 22/9900/10000
tcp clients: 0/100
server is up and running
--
Daniel
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