Trying to Run IOTop

Hey Everyone,

I'm trying to run iotop, and I'm using the latest paravirt kernel (2.6.38) in CentOS but one of the requirements "CONFIGTASKIO_ACCOUNTING" doesn't appear to be enabled.

Two questions:

How would I check to see which options are enabled in my current setup? (just to make sure I'm doing it right)

and

How would I go about enabling that option (if that's possible) and is there a way to do it without having to recompile the kernel (which I've never done before)?

Thanks in advance…

2 Replies

Just in case anyone is interested, I just got this reply back from Linode:

"Thank you for contacting us. CentOS doesn't play nice with iotop. Instead of iotop, you may want to try dstat. Any of our other distros, however, can run iotop just fine with the latest paravirt kernel. If you have any other questions, please let us know!"

@fuzzyfuture:

How would I check to see which options are enabled in my current setup? (just to make sure I'm doing it right)
Independent of your Linode ticket reply, to the above question, you should be able to check the /proc/config.gz file to see the current kernel options. I know that file is present in the Ubuntu distribution, but while I don't have a CentOS distribution to check, I think the file is a kernel feature rather than a distribution feature so should be generally available.

– David

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