Details
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Bug
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Status: Accepted
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Normal
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Resolution: Unresolved
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None
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None
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Manual Test
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Needs Assessment
Description
Note: This might be an issue only on non-virtualized systems (with processors that support variable frequency)
facter 3
$ /usr/bin/facter processors.speed
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4.20 GHz
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facter 4 (2 consecutive queries)
$ bundle exec facter processors.speed
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3.18 GHz
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$ bundle exec facter processors.speed
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1.06 GHz
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Facter 4 reads from /proc/cpuinfo which reports the current speed of the processors:
$ grep 'cpu MHz' /proc/cpuinfo
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cpu MHz : 1724.163
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cpu MHz : 1899.271
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cpu MHz : 2135.291
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cpu MHz : 1625.782
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cpu MHz : 1729.682
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cpu MHz : 1817.039
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cpu MHz : 1729.482
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cpu MHz : 1993.369
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Facter 3 reads the max speed from the first CPU (in kHz, then converts it):
$ cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
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4200000
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Facter 3 relevant code path: https://github.com/puppetlabs/facter/blob/3.x/lib/src/facts/linux/processor_resolver.cc#L192
Facter 4 relevant code path: https://github.com/puppetlabs/facter/blob/5f092a30cd5c33c2715619cada943bc1a8e0fa04/lib/facter/resolvers/processors.rb#L75
Attachments
Issue Links
- clones
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- Resolved
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