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2026-07-18 - 10:28
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Sat Jul 18, 2026 01:01:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4088199226221,3cyclictest0-21swapper/1523:45:197
4088199226221,3cyclictest0-21swapper/1523:45:197
4088199209171,27cyclictest0-21swapper/1522:00:137
4088199209171,27cyclictest0-21swapper/1522:00:127
4089799196184,9cyclictest0-21swapper/2800:17:5321
4089799196184,9cyclictest0-21swapper/2800:17:5221
4086599195168,15cyclictest0-21swapper/022:16:060
4086599195168,15cyclictest0-21swapper/022:16:050
4086799194181,7cyclictest0-21swapper/223:26:5612
4086799194181,7cyclictest0-21swapper/223:26:5612
408729919293,96cyclictest0-21swapper/723:35:2037
408729919293,96cyclictest0-21swapper/723:35:1937
4087299191156,28cyclictest0-21swapper/723:13:4137
4087299191156,28cyclictest0-21swapper/723:13:4137
4087299191156,28cyclictest0-21swapper/723:13:4137
4086799189162,25cyclictest0-21swapper/200:26:2512
4086799189162,25cyclictest0-21swapper/200:26:2412
4089699186174,9cyclictest0-21swapper/2719:25:0220
4089699186174,9cyclictest0-21swapper/2719:25:0220
4087299186112,69cyclictest3610-21CPU37
4087299186112,69cyclictest3610-21CPU37
4088199184168,12cyclictest0-21swapper/1521:15:297
4088199184168,12cyclictest0-21swapper/1521:15:287
4088199184168,12cyclictest0-21swapper/1521:15:287
4087299184144,29cyclictest0-21swapper/722:06:4537
4087299184144,29cyclictest0-21swapper/722:06:4537
4087299184108,57cyclictest0-21swapper/700:39:5137
4087299184108,57cyclictest0-21swapper/700:39:5037
40892991831,176cyclictest0-21swapper/2319:25:1316
40892991831,176cyclictest0-21swapper/2319:25:1316
4087299183100,77cyclictest0-21swapper/722:00:1837
4087299183100,77cyclictest0-21swapper/722:00:1737
4086799182176,2cyclictest0-21swapper/223:09:2612
4086799182176,2cyclictest0-21swapper/223:09:2612
4086799182170,10cyclictest0-21swapper/223:36:4112
4086799182170,10cyclictest0-21swapper/223:36:4012
4088499181159,16cyclictest0-21swapper/1700:01:319
4088499181159,16cyclictest0-21swapper/1700:01:319
4088499181159,16cyclictest0-21swapper/1700:01:319
4086599180165,10cyclictest0-21swapper/000:39:180
4086599180165,10cyclictest0-21swapper/000:39:170
4088499179154,16cyclictest0-21swapper/1700:09:149
4088499179154,16cyclictest0-21swapper/1700:09:149
4088499179154,16cyclictest0-21swapper/1700:09:139
4088099179169,9cyclictest0-21swapper/1400:02:586
4088099179169,9cyclictest0-21swapper/1400:02:586
4088099179169,9cyclictest0-21swapper/1400:02:576
4086599179167,11cyclictest0-21swapper/021:56:350
4086599179167,11cyclictest0-21swapper/021:56:350
4086599179133,25cyclictest0-21swapper/021:22:140
4086599179133,25cyclictest0-21swapper/021:22:140
4086599179121,29cyclictest0-21swapper/021:30:540
4086599179121,29cyclictest0-21swapper/021:30:530
4086599179121,29cyclictest0-21swapper/021:30:530
408679917888,85cyclictest4408-21CPU12
408679917888,85cyclictest4408-21CPU12
4089699177146,28cyclictest3543-21CPU20
4089699177146,28cyclictest3543-21CPU20
4086799177167,8cyclictest0-21swapper/200:35:1112
4086799177167,8cyclictest0-21swapper/200:35:1012
408729917647,122cyclictest0-21swapper/723:55:1437
408729917647,122cyclictest0-21swapper/723:55:1337
4086799176166,8cyclictest0-21swapper/221:26:0712
4086799176166,8cyclictest0-21swapper/221:26:0712
4086599176158,11cyclictest0-21swapper/000:17:070
4086599176158,11cyclictest0-21swapper/000:17:060
4086599176143,17cyclictest171rcu_preempt22:40:430
4086599176143,17cyclictest171rcu_preempt22:40:430
4090999175152,20cyclictest3609-21CPU32
4090999175152,20cyclictest3609-21CPU32
409069917592,80cyclictest0-21swapper/3622:00:3030
409069917592,80cyclictest0-21swapper/3622:00:3030
4090299175170,3cyclictest0-21swapper/3222:05:1426
4090299175170,3cyclictest0-21swapper/3222:05:1426
4089699175165,8cyclictest0-21swapper/2723:59:1920
4089699175165,8cyclictest0-21swapper/2723:59:1820
4089699174166,5cyclictest0-21swapper/2719:29:3520
4089699174166,5cyclictest0-21swapper/2719:29:3520
408679917467,104cyclictest3548-21CPU12
408679917467,104cyclictest3548-21CPU12
4086599174150,7cyclictest171rcu_preempt19:49:320
408869917348,113cyclictest0-21swapper/1800:10:1510
408869917348,113cyclictest0-21swapper/1800:10:1510
408729917383,87cyclictest0-21swapper/721:50:0237
408729917383,87cyclictest0-21swapper/721:50:0237
4086799172155,9cyclictest0-21swapper/222:19:0912
4086799172155,9cyclictest0-21swapper/222:19:0812
4086599172164,5cyclictest0-21swapper/000:11:180
4086599172164,5cyclictest0-21swapper/000:11:170
4086599172157,7cyclictest0-21swapper/023:10:590
4086599172157,7cyclictest0-21swapper/023:10:590
4086599172157,7cyclictest0-21swapper/023:10:590
4089699171151,13cyclictest0-21swapper/2719:40:5520
4089699171151,13cyclictest0-21swapper/2719:40:5420
4088099171162,4cyclictest0-21swapper/1422:22:006
4088099171162,4cyclictest0-21swapper/1422:21:596
4087299171101,66cyclictest4407-21CPU37
4087299171101,66cyclictest4407-21CPU37
4086799171160,9cyclictest0-21swapper/200:23:1712
4086799171160,9cyclictest0-21swapper/200:23:1612
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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