Comment 0 for bug 1672457

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Justin Kilpatrick (jkilpatr) wrote :

https://snapshot.raintank.io/dashboard/snapshot/S7oMf3rpbynrPK7U313Xk1WRZMrFg4ZB

https://snapshot.raintank.io/dashboard/snapshot/63GIebBJWAkAyH5iI286v6BXqtm4l31B

These are collected on two different clouds, one performing many ironic operations constantly as a benchmark, one simply left alone over the weekend. Resets line up with restarting the ironic conductor service, these are stock TripleO deployments with Newton, nothing special required to reproduce.

If you zoom in some it seems to be related to periodic conductor tasks like updating node status.

https://snapshot.raintank.io/dashboard/snapshot/Sp2wuk2M5adTpqfXMJenMXcSlCav2PiZ

This dashboard shows a very slight upward trend in average introspection times as the cpu load trends up. About 30 seconds, so you'd be hard pressed to call it a serious performance issue at this point, but if the trend continues over lets say a couple of months it would be concerning.

http://elk.browbeatproject.org:8080/goto/71754b3cba15049fe7a89a5de30fcf2d

Credit to rook for the second and third graphs.