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S )ax Fallback for kernels < 3.14 where /proc/meminfo does not provide
"MemAvailable", see:
https://blog.famzah.net/2014/09/24/
This code reimplements the algorithm outlined here:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/
commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773
We use this function also when "MemAvailable" returns 0 (possibly a
kernel bug, see: https://github.com/giampaolo/psutil/issues/1915).
In that case this routine matches "free" CLI tool result ("available"
column).
XXX: on recent kernels this calculation may differ by ~1.5% compared
to "MemAvailable:", as it's calculated slightly differently.
It is still way more realistic than doing (free + cached) though.
See:
* https://gitlab.com/procps-ng/procps/issues/42
* https://github.com/famzah/linux-memavailable-procfs/issues/2
MemFree: Cached:r s
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[guest_nice]]])
Last 3 fields may not be available on all Linux kernel versions.
r Nr c < g | ]}t | t z S rC float CLOCK_TICKSr s rE r z cpu_times..T s#
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r s cpur c < g | ]}t | t z S rC r r s rE r z!per_cpu_times..f s# AAAQ%(([0AAArD N)
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local endpoint/path, not the one it's connected to.
According to [1] it would be possible but not easily.
[1] http://serverfault.com/a/417946
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The IP address portion is a little or big endian four-byte
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Reference:
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RootFsDeviceFinderaE disk_partitions() may return partitions with device == "/dev/root"
or "rootfs". This container class uses different strategies to try to
obtain the real device path. Resources:
https://bootlin.com/blog/find-root-device/
https://www.systutorials.com/how-to-find-the-disk-where-root-is-on-in-bash-on-linux/
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| f t/ | S )a Return hardware (CPU and others) temperatures as a dict
including hardware name, label, current, max and critical
temperatures.
Implementation notes:
- /sys/class/hwmon looks like the most recent interface to
retrieve this info, and this implementation relies on it
only (old distros will probably use something else)
- lm-sensors on Ubuntu 16.04 relies on /sys/class/hwmon
- /sys/class/thermal/thermal_zone* is another one but it's more
difficult to parse
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