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55193c3058
Fix incorrect interpolation when counter resets occur in smoothed range selector evaluation. Previously, the asymmetric handling of counter resets (y1=0 on left edge, y2+=y1 on right edge) produced wrong values. Now uniformly set y1=0 when a counter reset is detected, correctly modeling the counter as starting from 0 post-reset. This fixes rate calculations across counter resets. For example, rate(metric[10s] smoothed) where metric goes from 100 to 10 (a reset) now correctly computes 0.666... by treating the counter as resetting to 0 rather than producing inflated values from the old behavior. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
420 lines
8.6 KiB
Plaintext
420 lines
8.6 KiB
Plaintext
# Reference from PROM-52: Complete dataset
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load 15s
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metric 1+1x4 9+1x4
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eval instant at 5s increase(metric[1m])
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eval instant at 20s increase(metric[1m])
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{} 1.833333333
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eval instant at 35s increase(metric[1m])
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{} 2.833333333
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eval instant at 50s increase(metric[1m])
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{} 4
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eval instant at 65s increase(metric[1m])
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{} 4
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eval instant at 80s increase(metric[1m])
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{} 8
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eval instant at 95s increase(metric[1m])
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{} 8
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eval instant at 110s increase(metric[1m])
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{} 8
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eval instant at 125s increase(metric[1m])
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{} 4
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eval instant at 5s increase(metric[1m] anchored)
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{} 0
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eval instant at 20s increase(metric[1m] anchored)
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{} 1
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eval instant at 35s increase(metric[1m] anchored)
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{} 2
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eval instant at 50s increase(metric[1m] anchored)
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{} 3
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eval instant at 65s increase(metric[1m] anchored)
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{} 4
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eval instant at 80s increase(metric[1m] anchored)
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{} 7
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eval instant at 95s increase(metric[1m] anchored)
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{} 7
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eval instant at 110s increase(metric[1m] anchored)
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{} 7
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eval instant at 125s increase(metric[1m] anchored)
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{} 7
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eval instant at 5s increase(metric[1m] smoothed)
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{} 0.333333333
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eval instant at 20s increase(metric[1m] smoothed)
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{} 1.333333333
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eval instant at 35s increase(metric[1m] smoothed)
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{} 2.333333333
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eval instant at 50s increase(metric[1m] smoothed)
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{} 3.333333333
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eval instant at 65s increase(metric[1m] smoothed)
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{} 5
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eval instant at 80s increase(metric[1m] smoothed)
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{} 7
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eval instant at 95s increase(metric[1m] smoothed)
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{} 7
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eval instant at 110s increase(metric[1m] smoothed)
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{} 7
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eval instant at 125s increase(metric[1m] smoothed)
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{} 6
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# Reference from PROM-52: Partial dataset
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clear
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load 15s
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metric 1+1x2 _ _ 9+1x4
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eval instant at 5s increase(metric[1m])
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eval instant at 20s increase(metric[1m])
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{} 1.833333333
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eval instant at 35s increase(metric[1m])
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{} 2.833333333
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eval instant at 50s increase(metric[1m])
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{} 3.166666666
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eval instant at 65s increase(metric[1m])
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{} 2.166666666
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eval instant at 80s increase(metric[1m])
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{} 8
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eval instant at 95s increase(metric[1m])
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{} 1.833333333
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eval instant at 110s increase(metric[1m])
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{} 2.833333333
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eval instant at 125s increase(metric[1m])
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{} 4
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eval instant at 5s increase(metric[1m] anchored)
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{} 0
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eval instant at 20s increase(metric[1m] anchored)
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{} 1
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eval instant at 35s increase(metric[1m] anchored)
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{} 2
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eval instant at 50s increase(metric[1m] anchored)
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{} 2
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eval instant at 65s increase(metric[1m] anchored)
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{} 2
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eval instant at 80s increase(metric[1m] anchored)
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{} 7
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eval instant at 95s increase(metric[1m] anchored)
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{} 7
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eval instant at 110s increase(metric[1m] anchored)
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{} 8
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eval instant at 125s increase(metric[1m] anchored)
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{} 9
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eval instant at 5s increase(metric[1m] smoothed)
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{} 0.333333333
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eval instant at 20s increase(metric[1m] smoothed)
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{} 1.333333333
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eval instant at 35s increase(metric[1m] smoothed)
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{} 2.666666666
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eval instant at 50s increase(metric[1m] smoothed)
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{} 4.666666666
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eval instant at 65s increase(metric[1m] smoothed)
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{} 6.333333333
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eval instant at 80s increase(metric[1m] smoothed)
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{} 7
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eval instant at 95s increase(metric[1m] smoothed)
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{} 6.666666666
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eval instant at 110s increase(metric[1m] smoothed)
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{} 5.666666666
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eval instant at 125s increase(metric[1m] smoothed)
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{} 4.666666666
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# Test that interval is left-open.
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clear
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load 1m
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metric 1 2 _ 4 5
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eval instant at 2m increase(metric[1m] smoothed)
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{} 1
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eval instant at 2m increase(metric[1m] anchored)
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# Basic test with counter resets
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clear
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load 1m
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metric{id="1"} 1+1x4 1+1x4
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metric{id="2"} 3 2+2x9
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metric{id="3"} 5+3x2 3+3x6
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eval instant at 1m30s increase(metric[1m])
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eval instant at 1m30s increase(metric[1m] smoothed)
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{id="1"} 1
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{id="2"} 2
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{id="3"} 3
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eval instant at 1m30s increase(metric[1m] anchored)
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{id="1"} 1
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{id="2"} 2
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{id="3"} 3
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eval instant at 1m30s delta(metric[1m])
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eval instant at 1m30s delta(metric[1m] anchored)
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{id="1"} 1
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{id="2"} -1
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{id="3"} 3
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eval instant at 3m0s delta(metric[1m] anchored)
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{id="1"} 1
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{id="2"} 2
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{id="3"} -8
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eval instant at 3m30s delta(metric[1m] anchored)
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{id="1"} 1
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{id="2"} 2
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{id="3"} -8
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eval instant at 6m increase(metric[5m])
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{id="1"} 5
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{id="2"} 10
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{id="3"} 15
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eval instant at 6m15s increase(metric[5m] smoothed)
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{id="1"} 5
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{id="2"} 10
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{id="3"} 15
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eval instant at 6m increase(metric[5m] smoothed)
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{id="1"} 5
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{id="2"} 10
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{id="3"} 15
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eval instant at 5m increase(metric[5m] anchored)
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{id="1"} 5
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{id="2"} 10
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{id="3"} 15
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eval instant at 15m increase(metric[5m] anchored)
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clear
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load 1m
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metric{id="1"} 11 -1 100 0
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metric{id="2"} 0 0 100 0 0 11 -1
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eval instant at 5m30s delta(metric[5m] smoothed)
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{id="1"} -5
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{id="2"} 5
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eval instant at 5m45s delta(metric[5m] smoothed)
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{id="1"} -2
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{id="2"} 2
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clear
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load 1m
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metric{id="1"} 1+1x10
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metric{id="2"} 1 1+1x10
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metric{id="3"} 99-1x10
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metric{id="4"} 99 99-1x10
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eval instant at 5m changes(metric[5m])
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{id="1"} 4
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{id="2"} 4
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{id="3"} 4
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{id="4"} 4
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eval instant at 5m30s changes(metric[5m])
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{id="1"} 4
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{id="2"} 4
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{id="3"} 4
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{id="4"} 4
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eval instant at 5m0s changes(metric[5m] anchored)
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{id="1"} 5
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{id="2"} 4
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{id="3"} 5
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{id="4"} 4
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eval instant at 6m changes(metric[5m] anchored)
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{id="1"} 5
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{id="2"} 5
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{id="3"} 5
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{id="4"} 5
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eval instant at 5m30s changes(metric[5m] anchored)
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{id="1"} 5
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{id="2"} 4
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{id="3"} 5
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{id="4"} 4
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eval instant at 5m30s resets(metric[5m])
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{id="1"} 0
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{id="2"} 0
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{id="3"} 4
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{id="4"} 4
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eval instant at 5m30s resets(metric[5m] anchored)
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{id="1"} 0
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{id="2"} 0
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{id="3"} 5
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{id="4"} 4
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clear
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load 1m
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metric{id="1"} 2 _ 1 _ _ _ _ _ 0
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metric{id="2"} 99-1x10
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eval instant at 2m changes(metric[1m])
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{id="1"} 0
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{id="2"} 0
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eval instant at 3m changes(metric[1m])
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{id="2"} 0
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eval instant at 2m changes(metric[1m] anchored)
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{id="1"} 1
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{id="2"} 1
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eval instant at 3m changes(metric[1m] anchored)
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{id="2"} 1
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eval instant at 8m changes(metric[1m] anchored)
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{id="1"} 0
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{id="2"} 1
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eval instant at 8m changes(metric[1m1ms] anchored)
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{id="1"} 1
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{id="2"} 2
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eval instant at 2m resets(metric[1m])
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{id="1"} 0
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{id="2"} 0
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eval instant at 3m resets(metric[1m])
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{id="2"} 0
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eval instant at 2m resets(metric[1m] anchored)
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{id="1"} 1
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{id="2"} 1
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eval instant at 3m resets(metric[1m] anchored)
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{id="2"} 1
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eval instant at 8m resets(metric[1m] anchored)
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{id="1"} 0
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{id="2"} 1
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eval instant at 8m resets(metric[1m1ms] anchored)
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{id="1"} 1
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{id="2"} 2
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clear
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load 1m
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metric 9 8 5 4
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eval instant at 2m15s increase(metric[2m] smoothed)
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{} 12
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# Smoothed rate interpolation across a counter reset.
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clear
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load 15s
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metric 100 10
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eval instant at 12s rate(metric[10s] smoothed)
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{} 0.666666666666667
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clear
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eval instant at 1m deriv(foo[3m] smoothed)
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expect fail msg: smoothed modifier can only be used with: delta, increase, rate - not with deriv
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eval instant at 1m resets(foo[3m] smoothed)
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expect fail msg: smoothed modifier can only be used with: delta, increase, rate - not with resets
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eval instant at 1m changes(foo[3m] smoothed)
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expect fail msg: smoothed modifier can only be used with: delta, increase, rate - not with changes
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eval instant at 1m max_over_time(foo[3m] smoothed)
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expect fail msg: smoothed modifier can only be used with: delta, increase, rate - not with max_over_time
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eval instant at 1m predict_linear(foo[3m] smoothed, 4)
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expect fail msg: smoothed modifier can only be used with: delta, increase, rate - not with predict_linear
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eval instant at 1m deriv(foo[3m] anchored)
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expect fail msg: anchored modifier can only be used with: changes, delta, increase, rate, resets - not with deriv
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eval instant at 1m resets(foo[3m] anchored)
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eval instant at 1m changes(foo[3m] anchored)
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eval instant at 1m max_over_time(foo[3m] anchored)
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expect fail msg: anchored modifier can only be used with: changes, delta, increase, rate, resets - not with max_over_time
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eval instant at 1m predict_linear(foo[3m] anchored, 4)
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expect fail msg: anchored modifier can only be used with: changes, delta, increase, rate, resets - not with predict_linear
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clear
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load 10s
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metric 1+1x10
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withreset 1+1x4 1+1x5
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notregular 0 5 100 2 8
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eval instant at 10s metric smoothed
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metric 2
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eval instant at 15s metric smoothed
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metric 2.5
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eval instant at 5s metric smoothed
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metric 1.5
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eval instant at 105s metric smoothed
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metric 11
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eval instant at 45s withreset smoothed
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withreset 3
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eval instant at 30s notregular smoothed
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notregular 2 |