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authorRichard Elling <[email protected]>2018-12-11 13:56:54 -0800
committerBrian Behlendorf <[email protected]>2018-12-11 13:56:54 -0800
commita48cd034c8df96ab751179b0c15bf84c6e178967 (patch)
tree848ec25ff9723c998deb784cffdcd623a3b97788 /config/kernel-bdi.m4
parentfa61e72340c1b47f33b5290e5eeb7e05e62eabf0 (diff)
Seeing negative values for wlentime and rlentime
Linux kstat IO and TIMER printed values as signed. However the counters only increment. Thus humans looking at the data can be confused when the counters roll over. Note: The recommended use of these values is to monitor the derivative, which don't really care about the sign. See explanations related to non-negative derivatives in the various time-series databases. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Richard Elling <[email protected]> Closes #8131 Closes #8198
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