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Linux / virtual_memory(): match "free" cmdline utility #887

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giampaolo opened this issue Sep 18, 2016 · 3 comments
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Linux / virtual_memory(): match "free" cmdline utility #887

giampaolo opened this issue Sep 18, 2016 · 3 comments
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bug linux

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@giampaolo
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giampaolo commented Sep 18, 2016 •
edited

There are different issues tracking complaints about virtual_memory() on Linux reporting numbers which are different than the ones reported by free cmdline utility:

This ticket aims at fixing that so that psutil and "free" report the exact same stats and promote "free" as the standard reference for psutil.
Right now the differing namedtuple values are free, used and available memory stats.
giampaolo added a commit that referenced this issue Sep 18, 2016
@giampaolo
#887: add test to matche 'avail' column of 'free'
4ef7544
giampaolo added a commit that referenced this issue Sep 18, 2016
@giampaolo
#887: match 'available' column of 'free'; also calculate 'cached' mem…
e67cf87 
… the same way free does (includes reclaimable mem)
giampaolo added a commit that referenced this issue Sep 18, 2016
@giampaolo
#887: MemAvailable column may not be there; in that case calculate av…
75aecfe 
…ailable mem the same way htop does
giampaolo added a commit that referenced this issue Sep 18, 2016
@giampaolo
#887 correctly calculate shared mem
a956b5f
giampaolo added a commit that referenced this issue Sep 18, 2016
@giampaolo
#887: do not use sysinfo() syscall; use /proc/meminfo to calculate al…
559270e 
…l stats
@giampaolo
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giampaolo commented Sep 18, 2016 •
edited

Intermediate PR: #888

This was referenced Sep 18, 2016
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giampaolo added a commit that referenced this issue Sep 20, 2016
@giampaolo
issue #887: calculate avail mem on older kernels where MemAvailable
8504d93 
column is not available.
giampaolo added a commit that referenced this issue Sep 20, 2016
@giampaolo
#887: add test for warnings on missing values
0f53f7f
giampaolo added a commit that referenced this issue Sep 20, 2016
@giampaolo
#887: add test for calculate avail mem
043752f
giampaolo added a commit that referenced this issue Sep 20, 2016
@giampaolo
#887: add another test for avail mem
840cbd7
@giampaolo
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Related:
https://gitlab.com/procps-ng/procps/issues/42
famzah/linux-memavailable-procfs#2

@giampaolo
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Fixed in #890.

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