Here's an interesting question for Nova users and/or Linux experts. I have a number of measurements promises that extract information about a system and store that data in our asset database. However, if dynamic CPU throttling is enabled on (mainly RHEL) Linux (e.g. cpuspeed), that value will change and we end up seeing toggling of that value in our asset database (via a report that tracks changes made to it by Cfengine).
Currently I'm looking at /proc/cpuinfo:
measurements:
linux::
"/proc/cpuinfo"
handle => "linux_cpu_speed",
stream_type => "file",
data_type => "int",
history_type => "scalar",
units => "MHz",
match_value => extract_line_value("cpu MHz.*", "cpu
MHz\s+:\s+(\d+\.\d+)");
This is the value that changes. One person here suggested looking at the
"model name" entry in /proc/cpuinfo, to which newer systems statically
add the default CPU speed, but unfortunately we have a lot of systems
that don't do that.
So does anyone have any other thoughts on how to reliably retrieve RHEL
systems' CPU speeds via Cfengine measurements promises?
Justin C. Lloyd
Senior Unix Infrastructure Engineer
Office: 303.684.4166
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