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(parent: d556594) | patch
Don't divide by 0 when doing percentages (e.g. with the swap plugin).
authorCorey Kosak <kosak@google.com>
Fri, 22 Jan 2016 21:56:37 +0000 (16:56 -0500)
committerMarc Fournier <marc.fournier@camptocamp.com>
Tue, 26 Jan 2016 06:15:54 +0000 (07:15 +0100)
commitf1552fdc8b98860f22e69d162db295bfb9b49180
tree864888424d1096c9ac05c3960ba1a22ec59fe1detree | snapshot
parentd5565943cd7ee338e5b750a027faff8115df4c72commit | diff
Don't divide by 0 when doing percentages (e.g. with the swap plugin).

Prior to this change, if all the values being sent sum to zero, then the
calculated percentage is a division by 0 which is either Inf or NaN
depending on the numerator.

This is not a theoretical concern: it can easily happen if all the input
gauges are 0.

This change forces the output to be zero if the denominator is zero.
src/daemon/plugin.c diff | blob | history
collectd, the system statistics collection daemon