podman system df: fix percent calculation#13575
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openshift-merge-robot merged 1 commit intocontainers:mainfrom Mar 21, 2022
Merged
podman system df: fix percent calculation#13575openshift-merge-robot merged 1 commit intocontainers:mainfrom
openshift-merge-robot merged 1 commit intocontainers:mainfrom
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The calculate the percentage we need floating point numbers. The current code however casted the result of reclaimable/size to an int first. Casting to an int in go will just discard the decimal points, thus the result was either 0 or 1 so if multiplied by 100 it would show up as 0% or 100%. To fix this we have to multiply by 100 first before casting the result to an int. Also add a check for div by zero which results in NaN and use math.Round() to correctly round a number. Ref containers#13516 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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This was referenced May 9, 2022
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The calculate the percentage we need floating point numbers. The current
code however casted the result of reclaimable/size to an int first.
Casting to an int in go will just discard the decimal points, thus the
result was either 0 or 1 so if multiplied by 100 it would show up as 0%
or 100%.
To fix this we have to multiply by 100 first before casting the result
to an int. Also add a check for div by zero which results in NaN and use
math.Round() to correctly round a number.
Ref #13516