CPU Usage Errors

Has anyone been having any problems late yesterday or so far today?  Traffic has settled down to it's pre-election levels, which helps, but this email from yesterday may explain more:

I am writing today to give you some important information regarding your Bluehost.com account. As many of you know Bluehost.com uses Cpanel, a third party product, as our control panel to allow customers to manage their sites. While this is normally a good thing, it also takes much of the control away from us and sometimes forces us to live with deficiencies that we would normally not tolerate. Lately Cpanel has become so slow and cumbersome that despite buying some of the highest end hardware available some sites are sluggish at best and extremely slow at worst. This was never acceptable to us and we tried to work with Cpanel to resolve our issues, but it is clear to us that our issues will never be at their forefront. So what do we do?

Yesterday was my breaking point. A customer called in to complain of a slow site. I checked it myself and the server load showed it was running fine. Clearly it wasn't, and I wanted to know what was causing his issues. To make a long story short Cpanel was hitting every server's hard drive array close to 50,000 times per day more often than it needed to (Based on my rough calculations). Our server monitoring was not doing its job and our customers bore the brunt of these issues. There wasn't an easy fix and our servers were all grinding to a halt. We had to implement a custom fix and it had to done immediately.

...

While all server issues aren't immediately resolved, the VAST majority of problems we were seeing on all servers are virtually gone. You should now see a SUBSTANTIAL improvement in almost all areas of your site including mail issues, script execution time, and overall responsiveness of your hosting experience.

Next week we will provide a link to a user monitoring service that will allow you to monitor your server (From our perspective) to see basically what we see, and know if issues you are experiencing originate on our end or if some other factor is involved. We have more speed improvements being worked on aggressively right now and in the near future those details will be made available as well.

So maybe the problems have been solved without switching hosts.  We'll keep an eye on it, and if you keep getting CPU Usage errors, please post it in a Open Thread or email me.