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[modules/memory] Use MemAvailable, if present

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If the kernel supports it, MemAvailable contains an estimation
of the memory available for usage.

Use this to calculate the amount of free memory (as this seems to
closely match the output of gnome-system-monitor).

fixes #253
This commit is contained in:
Tobias Witek 2018-05-01 10:01:36 +02:00
parent f3dfd1d577
commit c45dedb0e8
1 changed files with 4 additions and 1 deletions
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3
bumblebee/modules/memory.py
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@ -50,6 +50,9 @@ class Module(bumblebee.engine.Module):
if tmp[2] == "mB": value = value*1024*1024
if tmp[2] == "gB": value = value*1024*1024*1024
data[tmp[0]] = value
if "MemAvailable" in data:
used = data["MemTotal"] - data["MemAvailable"]
else:
used = data["MemTotal"] - data["MemFree"] - data["Buffers"] - data["Cached"] - data["Slab"]
self._mem = {
"total": bumblebee.util.bytefmt(data["MemTotal"]),