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2026-06-22 - 04:11
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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 Mon Jun 22, 2026 00:49:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913070,299ptp4l0-21swapper/119:05:371
3273913070,299ptp4l0-21swapper/119:05:371
402699286124,1cyclictest151rcu_preempt22:05:5524
39169921422,155cyclictest0-21swapper/520:40:4427
39449920636,78cyclictest88-21ksoftirqd/1222:04:214
39169918022,129cyclictest0-21swapper/523:50:0327
39169918022,129cyclictest0-21swapper/523:50:0227
39169917522,151cyclictest0-21swapper/522:44:3227
39109917529,68cyclictest0-21swapper/423:59:4026
39109917529,68cyclictest0-21swapper/423:59:3926
39169917422,151cyclictest0-21swapper/500:14:5127
39169917422,151cyclictest0-21swapper/500:14:5127
39169917422,137cyclictest0-21swapper/523:02:2127
39169917422,121cyclictest0-21swapper/522:13:4227
39169917322,137cyclictest0-21swapper/522:55:5727
39169917022,103cyclictest0-21swapper/500:22:3127
39169917022,103cyclictest0-21swapper/500:22:3127
39109917013,127cyclictest151rcu_preempt22:10:0626
10112166158,6sleep150-21swapper/1519:05:207
10112166158,6sleep150-21swapper/1519:05:207
3922991630,60cyclictest0-21swapper/723:54:3529
3922991630,60cyclictest0-21swapper/723:54:3429
393099158156,1cyclictest151rcu_preempt23:18:1631
3922991540,56cyclictest0-21swapper/721:56:2729
401299151149,1cyclictest179-21ksoftirqd/2721:41:4920
40129914831,116cyclictest0-21swapper/2723:15:2220
39169914722,124cyclictest0-21swapper/521:05:2527
3948991460,90cyclictest0-21swapper/1300:17:085
3948991460,90cyclictest0-21swapper/1300:17:075
39229914528,57cyclictest0-21swapper/723:00:1829
3948991440,87cyclictest0-21swapper/1322:32:415
3948991440,85cyclictest0-21swapper/1323:32:145
3935991441,91cyclictest0-21swapper/1022:40:212
3965991420,83cyclictest0-21swapper/1721:30:589
39229914251,57cyclictest0-21swapper/700:14:5429
39229914251,57cyclictest0-21swapper/700:14:5329
39489914148,60cyclictest0-21swapper/1300:20:135
39489914148,60cyclictest0-21swapper/1300:20:125
3948991410,83cyclictest0-21swapper/1323:35:155
3948991410,83cyclictest0-21swapper/1323:35:145
3948991410,83cyclictest0-21swapper/1300:10:435
3948991410,83cyclictest0-21swapper/1300:10:425
23812141134,6sleep70-21swapper/719:06:4829
23812141134,6sleep70-21swapper/719:06:4829
39489914046,59cyclictest0-21swapper/1321:54:585
3948991400,84cyclictest0-21swapper/1321:11:075
3948991400,84cyclictest0-21swapper/1319:55:015
39229914054,60cyclictest0-21swapper/721:32:2529
39169914022,75cyclictest0-21swapper/521:10:1327
39489913951,60cyclictest0-21swapper/1323:07:385
39489913930,69cyclictest0-21swapper/1321:45:065
39489913926,66cyclictest0-21swapper/1319:13:345
3948991390,79cyclictest0-21swapper/1323:20:295
3948991390,79cyclictest0-21swapper/1323:20:285
3948991390,79cyclictest0-21swapper/1323:00:095
39229913929,65cyclictest0-21swapper/723:15:3429
39169913917,76cyclictest0-21swapper/523:12:0627
39489913847,57cyclictest0-21swapper/1323:51:285
39489913847,57cyclictest0-21swapper/1323:51:285
39489913847,56cyclictest0-21swapper/1300:29:335
39489913847,56cyclictest0-21swapper/1300:29:325
39489913846,54cyclictest0-21swapper/1320:04:285
39489913832,66cyclictest0-21swapper/1320:35:205
3948991380,79cyclictest0-21swapper/1323:46:075
39489913730,66cyclictest0-21swapper/1300:06:275
39489913730,66cyclictest0-21swapper/1300:06:265
3948991370,81cyclictest0-21swapper/1322:55:125
39229913757,65cyclictest0-21swapper/719:48:4429
39229913748,62cyclictest0-21swapper/719:17:4529
39229913729,70cyclictest0-21swapper/723:14:2729
39169913722,77cyclictest0-21swapper/500:38:5527
39169913722,77cyclictest0-21swapper/500:38:5427
39599913621,63cyclictest0-21swapper/1620:31:068
39489913655,64cyclictest0-21swapper/1319:27:595
39489913646,60cyclictest0-21swapper/1320:56:415
3948991360,86cyclictest0-21swapper/1321:21:175
3948991360,83cyclictest0-21swapper/1323:43:465
3948991360,83cyclictest0-21swapper/1323:43:465
3948991360,80cyclictest0-21swapper/1320:15:015
3948991360,77cyclictest0-21swapper/1322:02:265
39169913617,86cyclictest0-21swapper/523:20:3727
39169913617,86cyclictest0-21swapper/523:20:3727
39599913526,108cyclictest0-21swapper/1622:26:538
39489913531,70cyclictest0-21swapper/1320:50:215
3948991350,79cyclictest0-21swapper/1320:13:255
3948991350,79cyclictest0-21swapper/1319:21:045
39229913561,62cyclictest0-21swapper/700:39:2829
39229913561,62cyclictest0-21swapper/700:39:2829
39229913533,64cyclictest0-21swapper/723:23:0129
39229913533,64cyclictest0-21swapper/723:23:0129
400099134132,1cyclictest161-21ksoftirqd/2423:53:3517
400099134132,1cyclictest161-21ksoftirqd/2423:53:3517
39599913428,64cyclictest0-21swapper/1623:30:438
39599913427,24cyclictest0-21swapper/1621:56:248
39489913450,64cyclictest0-21swapper/1321:58:095
39489913445,60cyclictest0-21swapper/1323:17:485
39489913430,64cyclictest0-21swapper/1300:30:305
39489913430,64cyclictest0-21swapper/1300:30:295
39489913428,62cyclictest0-21swapper/1321:15:565
39489913415,72cyclictest0-21swapper/1322:06:425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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