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2026-06-11 - 20:55
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot8.osadl.org (updated Thu Jun 11, 2026 12:49:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913280,313ptp4l0-21swapper/107:05:231
223259932081,39cyclictest106-21ksoftirqd/1509:18:477
2225299317131,1cyclictest151rcu_preempt09:48:5226
223829924038,5cyclictest151rcu_preempt11:38:5918
22228991973,39cyclictest13-21ksoftirqd/010:10:110
222639914052,59cyclictest0-21swapper/611:26:3728
2225299140129,3cyclictest151rcu_preempt12:13:3626
222639913954,60cyclictest0-21swapper/611:42:2528
222639913947,56cyclictest0-21swapper/609:17:0128
222639913827,66cyclictest0-21swapper/607:49:2428
222639913827,66cyclictest0-21swapper/607:49:2428
223979913720,66cyclictest151rcu_preempt08:40:1921
222639913756,57cyclictest0-21swapper/609:30:2428
222639913726,63cyclictest0-21swapper/607:44:3628
222639913726,63cyclictest0-21swapper/607:44:3528
22403991360,79cyclictest0-21swapper/2912:05:1522
222639913649,56cyclictest0-21swapper/609:13:1728
222639913639,60cyclictest0-21swapper/610:55:2328
222639913630,69cyclictest0-21swapper/612:32:3928
222639913629,61cyclictest0-21swapper/611:52:3328
223559913527,65cyclictest0-21swapper/1907:23:2411
223559913527,65cyclictest0-21swapper/1907:23:2311
222639913528,64cyclictest0-21swapper/610:16:2228
222589913545,55cyclictest0-21swapper/510:41:5727
222639913446,56cyclictest0-21swapper/608:57:4728
222639913440,62cyclictest0-21swapper/610:48:2628
222639913430,70cyclictest0-21swapper/612:35:5228
222639913427,64cyclictest0-21swapper/609:28:4828
222589913447,58cyclictest0-21swapper/508:01:0927
222589913428,72cyclictest0-21swapper/510:59:2227
223559913340,59cyclictest0-21swapper/1910:30:1411
223559913330,68cyclictest0-21swapper/1912:25:2311
223559913327,72cyclictest0-21swapper/1911:31:5511
2227399133125,5cyclictest151rcu_preempt11:16:0330
222639913340,62cyclictest0-21swapper/609:59:1628
222639913330,67cyclictest0-21swapper/611:33:1928
222639913327,64cyclictest0-21swapper/610:12:5428
223559913229,66cyclictest0-21swapper/1912:09:2011
223559913228,70cyclictest0-21swapper/1911:52:4711
222639913230,72cyclictest0-21swapper/609:54:0528
222639913228,65cyclictest0-21swapper/611:18:2228
222589913261,70cyclictest0-21swapper/507:38:5327
222589913261,70cyclictest0-21swapper/507:38:5227
222589913252,59cyclictest0-21swapper/510:00:5127
223559913151,64cyclictest0-21swapper/1909:18:1911
223559913129,67cyclictest0-21swapper/1911:05:1211
223559913128,63cyclictest0-21swapper/1910:50:1511
223559913128,60cyclictest0-21swapper/1911:39:2511
223559913127,72cyclictest0-21swapper/1907:35:1211
223559913127,72cyclictest0-21swapper/1907:35:1111
222639913131,74cyclictest0-21swapper/607:15:1528
222639913131,74cyclictest0-21swapper/607:15:1428
222639913130,69cyclictest0-21swapper/612:10:1428
222639913129,73cyclictest0-21swapper/607:55:1728
222639913129,73cyclictest0-21swapper/607:55:1628
222639913129,66cyclictest0-21swapper/608:09:4328
222639913128,68cyclictest0-21swapper/609:45:5328
222589913129,67cyclictest0-21swapper/512:17:3927
222589913128,67cyclictest0-21swapper/507:20:3227
222589913128,67cyclictest0-21swapper/507:20:3227
222589913127,72cyclictest0-21swapper/512:32:5627
222589913127,67cyclictest0-21swapper/512:39:0327
222589913127,65cyclictest0-21swapper/511:51:2927
2225899131129,1cyclictest0-21swapper/509:16:2927
223559913030,57cyclictest0-21swapper/1912:20:1911
222639913064,65cyclictest0-21swapper/610:53:1428
222639913030,72cyclictest0-21swapper/612:09:4028
222639913027,60cyclictest0-21swapper/608:45:3128
222589913047,64cyclictest0-21swapper/511:47:2427
222589913042,57cyclictest0-21swapper/510:27:2527
222589913030,73cyclictest0-21swapper/510:13:2127
222589913029,66cyclictest0-21swapper/507:10:2327
222589913029,66cyclictest0-21swapper/507:10:2227
222589913028,67cyclictest0-21swapper/508:12:2227
222589913027,68cyclictest0-21swapper/508:05:4127
222589913023,65cyclictest0-21swapper/512:10:1127
222529913022,106cyclictest0-21swapper/408:20:1326
223559912929,67cyclictest0-21swapper/1909:30:0411
223559912927,67cyclictest0-21swapper/1910:57:1111
223559912926,67cyclictest0-21swapper/1910:36:2011
223559912926,61cyclictest0-21swapper/1910:06:2511
223419912949,49cyclictest0-21swapper/1711:38:189
22273991290,87cyclictest0-21swapper/810:50:2430
222639912933,69cyclictest0-21swapper/611:01:3228
222639912931,75cyclictest0-21swapper/610:05:0828
222639912931,75cyclictest0-21swapper/607:37:0728
222639912931,75cyclictest0-21swapper/607:37:0628
222639912930,71cyclictest0-21swapper/612:20:5428
222639912927,65cyclictest0-21swapper/610:43:0428
222589912936,61cyclictest0-21swapper/510:46:1627
222589912930,74cyclictest0-21swapper/509:10:2127
222589912930,69cyclictest0-21swapper/511:22:5327
222589912930,66cyclictest0-21swapper/510:19:0127
222589912929,70cyclictest0-21swapper/511:41:5227
222589912929,68cyclictest0-21swapper/511:10:3827
222589912929,68cyclictest0-21swapper/509:43:4527
222589912929,67cyclictest0-21swapper/509:53:3327
222589912929,64cyclictest0-21swapper/511:02:3027
222589912928,67cyclictest0-21swapper/508:51:2127
222589912925,65cyclictest0-21swapper/508:26:1527
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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