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2026-09-10 - 17:16
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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 rackeslot3.osadl.org (updated Thu Sep 10, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4031096997354,2cyclictest4067927-21fschecks_time09:05:141
4031096997041,17cyclictest4047617-21kworker/1:108:05:141
4031096996738,18cyclictest4053096-21kworker/1:108:20:131
4031096996540,15cyclictest43108-21kworker/1:012:19:561
4031096996441,14cyclictest4050018-21kworker/1:208:10:151
4031096996440,15cyclictest4075329-21kworker/1:109:25:121
4031096996439,16cyclictest4070730-21kworker/1:009:15:011
403109699640,62cyclictest4111502-21ssh09:56:021
4031096996259,2cyclictest0-21swapper/108:18:221
4031096996246,15cyclictest4187409-21kworker/1:012:00:131
4031096996236,18cyclictest52628-21kworker/1:112:35:141
4031096996145,15cyclictest43108-21kworker/1:012:20:141
4031096996058,1cyclictest0-21swapper/110:50:521
4031096996057,2cyclictest0-21swapper/111:18:531
4031096996044,15cyclictest2372925-1kworker/1:1H11:10:261
4031096996042,17cyclictest4187409-21kworker/1:011:29:591
4031096996033,26cyclictest2372925-1kworker/1:1H11:00:151
4031092996046,13cyclictest3930334-1kworker/0:2H11:00:200
4031096995957,1cyclictest0-21swapper/108:59:231
4031096995957,1cyclictest0-21swapper/108:59:221
4031096995943,15cyclictest9243-21kworker/1:311:41:011
4031096995943,15cyclictest4143306-21kworker/1:210:34:221
4031096995943,15cyclictest4045433-21kworker/1:208:00:011
4031096995941,17cyclictest4057985-21kworker/1:008:45:131
4031096995940,18cyclictest4042362-21kworker/1:307:45:141
4031096995939,19cyclictest4028719-21kworker/1:307:10:131
4031096995856,1cyclictest0-21swapper/112:34:481
4031096995843,14cyclictest43108-21kworker/1:012:28:221
4031096995843,14cyclictest4087612-21kworker/1:309:50:141
4031096995843,14cyclictest4031620-21kworker/1:207:15:131
4031096995843,14cyclictest4030078-21kworker/1:007:30:141
4031096995842,15cyclictest4053096-21kworker/1:108:29:541
4031096995842,15cyclictest2372925-1kworker/1:1H08:35:141
4031097995748,7cyclictest3683655-1kworker/2:2H09:55:142
4031096995742,14cyclictest4148094-21kworker/1:011:05:011
4031096995742,14cyclictest4080425-21kworker/1:209:30:131
4031096995742,14cyclictest4057985-21kworker/1:008:50:151
4031096995741,15cyclictest4039244-21kworker/1:107:35:121
4031096995741,15cyclictest2372925-1kworker/1:1H07:20:141
4031096995741,15cyclictest13756-21kworker/1:111:45:011
4031096995740,16cyclictest4053096-21kworker/1:108:30:001
4031096995740,16cyclictest4042305-21kworker/1:007:54:531
4031096995740,16cyclictest22710-21kworker/1:311:55:171
4031096995740,16cyclictest22710-21kworker/1:311:55:161
4031096995739,17cyclictest4047617-21kworker/1:108:00:161
4031097995647,7cyclictest3683655-1kworker/2:2H12:15:392
4031096995654,1cyclictest0-21swapper/110:55:251
4031096995653,2cyclictest0-21swapper/110:16:491
4031096995641,14cyclictest4187409-21kworker/1:011:30:181
4031096995641,14cyclictest4129167-21kworker/1:210:20:121
4031096995640,15cyclictest4114605-21kworker/1:210:00:181
4031096995640,15cyclictest4080425-21kworker/1:209:35:021
4031096995640,15cyclictest4066269-21kworker/1:209:00:141
4031096995640,15cyclictest2372925-1kworker/1:1H11:25:011
4031096995640,15cyclictest2372925-1kworker/1:1H07:25:121
4031096995639,16cyclictest4148094-21kworker/1:010:44:561
4031096995639,16cyclictest4070730-21kworker/1:009:15:071
4031096995636,18cyclictest4111416-21kworker/1:110:10:131
4031098995549,3cyclictest4039042-1kworker/3:1H12:10:123
4031096995539,15cyclictest4187409-21kworker/1:011:54:221
4031096995539,15cyclictest4138726-21kworker/1:010:28:551
4031096995539,15cyclictest4133912-21kworker/1:110:35:001
4031096995539,15cyclictest4096137-21kworker/1:109:45:131
4031096995539,15cyclictest4075329-21kworker/1:109:20:131
4031096995539,15cyclictest4039244-21kworker/1:107:44:241
4031096995539,15cyclictest3191-21kworker/1:211:35:121
4031096995538,16cyclictest4148094-21kworker/1:010:50:001
4031096995538,16cyclictest33635-21kworker/1:212:10:131
4031096995537,17cyclictest2372925-1kworker/1:1H08:44:591
4031092995551,3cyclictest4182676-21kworker/0:011:17:100
4031096995438,15cyclictest4111416-21kworker/1:110:05:151
4031098995347,3cyclictest4039042-1kworker/3:1H11:05:133
4031097995348,3cyclictest4135964-21kworker/2:110:50:592
4031096995337,15cyclictest4096137-21kworker/1:109:44:551
4031098995249,2cyclictest4010231-21kworker/3:008:12:233
4031098995247,3cyclictest4185318-21kworker/3:211:33:493
4031098995247,3cyclictest4010231-21kworker/3:008:25:093
4031097995247,3cyclictest4135964-21kworker/2:110:32:222
4031092995248,3cyclictest3930334-1kworker/0:2H11:43:470
4031092995248,2cyclictest4039191-21kworker/0:207:46:230
4031092995247,3cyclictest3930334-1kworker/0:2H11:50:130
4031092995246,3cyclictest3930334-1kworker/0:2H08:00:140
4031098995148,2cyclictest4104936-21kworker/3:110:07:343
4031098995147,3cyclictest4104936-21kworker/3:110:15:003
4031098995147,3cyclictest4039042-1kworker/3:1H10:59:553
4031098995147,2cyclictest4010231-21kworker/3:008:31:293
4031098995146,3cyclictest4185318-21kworker/3:211:20:063
403109699510,1cyclictest0-21swapper/112:05:441
4031092995147,2cyclictest16019-21kworker/0:112:00:130
4031098995047,2cyclictest4104936-21kworker/3:110:20:513
4031098995046,3cyclictest4010231-21kworker/3:007:38:333
4031098995046,2cyclictest4185318-21kworker/3:212:19:483
4031098995046,2cyclictest4010231-21kworker/3:008:47:543
4031098995045,3cyclictest54049-21kworker/3:112:37:223
4031098995045,3cyclictest4039042-1kworker/3:1H08:20:113
4031097995038,9cyclictest3683655-1kworker/2:2H11:50:132
4031092995046,3cyclictest4053093-21kworker/0:008:29:490
4031092995046,2cyclictest4030929-21kworker/0:107:32:480
4031098994946,2cyclictest4010231-21kworker/3:009:08:233
4031098994946,2cyclictest4010231-21kworker/3:008:01:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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