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+++ This bug was initially created as a clone of Bug #707989 +++ Description of problem: If cpuspeed was enabled on a system and the user issues "service cpuspeed stop" followed by "chkconfig cpuspeed off", the cpu frequency of the cpus is left at the current frequency that was set by the kernel. So if the speed was reduced by the kernel to a lower rate, it is not reset to the maximum rate. I think the common user may miss this and get poor performance of his system until he reboots his system. There is an easy way to work around this but i suggest that this behavior should be changed. Version-Release number of selected component (if applicable): cpuspeed-1.2.1-9.el5 and earlier How reproducible: enable cpuspeed cause it to reduce cpu frequency and then issue stop cpuspeed. CPU frequency stays as is. I am not sure I can call it a bug, maybe more a change to reduce the risk of a user to stay with a system working unexpectedly slow. Thank you! --- Additional comment from psabata on 2011-05-26 16:14:01 CEST --- Thanks for the report. Indeed, switching to the highest frequency available in scaling_available_frequencies would be probably the best idea.
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I'm going to close this as a WONTFIX. The highest available frequency isn't necessarily the state we were in before we started the cpuspeed service and setting that might even be a) dangerous on some systems, b) impossible in case the limits have been altered externally and the kernel isn't aware of that. Because of the latter, I don't think remembering the state in the moment of our start would be beneficial either. We could possibly introduce new configuration settings for what frequency and governor we should switch to upon exiting but I don't find this too useful.