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2026-08-30 - 20:30
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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 Sun Aug 30, 2026 12:49:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130222215204,8sleep310-21swapper/3107:05:1325
18959991973,24cyclictest151rcu_preempt11:24:5821
18959991973,24cyclictest151rcu_preempt11:24:5721
3273911930,186ptp4l0-21swapper/107:05:181
330891185177,6phc2sys0-21swapper/207:09:1512
188729916249,112cyclictest0-21swapper/1011:47:182
18921991590,111cyclictest0-21swapper/2210:31:0415
18921991590,111cyclictest0-21swapper/2210:31:0415
18898991542,116cyclictest1111rcuc/1612:15:008
189219915136,83cyclictest0-21swapper/2209:16:1515
189219915112,86cyclictest0-21swapper/2212:15:1115
18921991504,134cyclictest0-21swapper/2209:47:4015
18921991504,134cyclictest0-21swapper/2209:47:4015
189599914827,119cyclictest0-21swapper/2810:20:4421
189599914827,119cyclictest0-21swapper/2810:20:4321
188729914533,111cyclictest0-21swapper/1010:19:062
188729914533,111cyclictest0-21swapper/1010:19:062
18833991450,87cyclictest0-21swapper/308:24:3723
18921991430,108cyclictest0-21swapper/2209:41:4915
18921991430,108cyclictest0-21swapper/2209:41:4815
189219914145,65cyclictest0-21swapper/2212:39:0415
18833991415,83cyclictest0-21swapper/307:26:2223
189409914056,62cyclictest0-21swapper/2509:47:1818
189409914056,62cyclictest0-21swapper/2509:47:1818
189219913947,60cyclictest0-21swapper/2211:25:3615
189219913944,64cyclictest0-21swapper/2210:03:4815
189219913944,64cyclictest0-21swapper/2210:03:4815
189599913827,71cyclictest0-21swapper/2807:13:1421
189219913865,55cyclictest0-21swapper/2210:52:5415
189219913865,55cyclictest0-21swapper/2210:52:5315
188989913823,114cyclictest0-21swapper/1609:23:078
188439913824,72cyclictest0-21swapper/510:50:0127
189599913727,79cyclictest0-21swapper/2812:10:2321
189599913723,110cyclictest0-21swapper/2812:25:1521
189409913751,61cyclictest0-21swapper/2510:07:3618
189409913751,61cyclictest0-21swapper/2510:07:3618
189219913735,68cyclictest0-21swapper/2209:54:4315
189219913734,65cyclictest0-21swapper/2210:10:1315
189219913734,65cyclictest0-21swapper/2210:10:1315
189409913626,64cyclictest0-21swapper/2509:41:2918
189409913626,64cyclictest0-21swapper/2509:41:2818
189219913654,64cyclictest0-21swapper/2212:24:5415
189219913640,58cyclictest0-21swapper/2211:45:2115
189219913637,68cyclictest0-21swapper/2207:35:1515
188539913621,34cyclictest9280-21taskset10:35:2229
188539913621,34cyclictest9280-21taskset10:35:2229
189409913530,73cyclictest0-21swapper/2507:34:4618
189409913530,67cyclictest0-21swapper/2511:51:1818
189409913529,74cyclictest0-21swapper/2510:47:5818
189409913529,74cyclictest0-21swapper/2510:47:5818
189409913528,71cyclictest0-21swapper/2507:45:1418
189219913567,50cyclictest0-21swapper/2209:13:3415
189219913543,66cyclictest0-21swapper/2211:23:2715
189219913543,66cyclictest0-21swapper/2211:23:2615
189219913539,70cyclictest0-21swapper/2207:30:2615
189219913528,69cyclictest0-21swapper/2209:29:3715
189219913528,66cyclictest0-21swapper/2209:56:3615
189219913526,63cyclictest0-21swapper/2207:59:1715
188539913548,58cyclictest0-21swapper/711:28:3229
18833991350,88cyclictest34-21ksoftirqd/310:48:5523
18833991350,88cyclictest34-21ksoftirqd/310:48:5523
189409913431,73cyclictest0-21swapper/2510:32:4718
189409913431,73cyclictest0-21swapper/2510:32:4618
189409913428,67cyclictest0-21swapper/2507:39:3518
189219913454,56cyclictest0-21swapper/2209:38:1015
189219913454,56cyclictest0-21swapper/2209:38:0915
189219913444,63cyclictest0-21swapper/2208:10:3115
189219913428,69cyclictest0-21swapper/2210:35:5215
189219913428,69cyclictest0-21swapper/2210:35:5215
189219913428,66cyclictest0-21swapper/2211:34:0815
189219913428,62cyclictest0-21swapper/2211:50:4215
188729913436,69cyclictest0-21swapper/1011:43:012
189409913345,58cyclictest0-21swapper/2510:54:3818
189409913345,58cyclictest0-21swapper/2510:54:3818
189409913336,68cyclictest0-21swapper/2508:02:3318
189219913333,67cyclictest0-21swapper/2210:40:5715
189219913333,67cyclictest0-21swapper/2210:40:5715
189219913331,75cyclictest0-21swapper/2208:10:0115
189219913330,63cyclictest0-21swapper/2211:15:2515
189219913327,69cyclictest0-21swapper/2211:56:0315
189219913326,63cyclictest0-21swapper/2208:44:4315
188989913319,66cyclictest0-21swapper/1612:27:498
188539913347,58cyclictest0-21swapper/710:45:1629
188539913347,58cyclictest0-21swapper/710:45:1629
188539913326,66cyclictest0-21swapper/708:50:2029
18833991330,78cyclictest0-21swapper/308:55:0523
189409913263,67cyclictest0-21swapper/2512:03:3518
189409913230,70cyclictest0-21swapper/2508:50:0718
189409913229,77cyclictest0-21swapper/2509:06:2618
189409913229,66cyclictest0-21swapper/2509:14:4118
189409913228,70cyclictest0-21swapper/2510:39:0818
189409913228,70cyclictest0-21swapper/2510:39:0818
189409913228,67cyclictest0-21swapper/2510:41:1718
189409913228,67cyclictest0-21swapper/2510:41:1718
189409913228,61cyclictest0-21swapper/2512:35:0818
189219913246,58cyclictest0-21swapper/2212:06:4415
189219913235,75cyclictest0-21swapper/2210:07:3215
189219913235,75cyclictest0-21swapper/2210:07:3215
189219913231,75cyclictest0-21swapper/2212:26:2515
189219913231,73cyclictest0-21swapper/2211:02:3715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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