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2026-05-03 - 19:38
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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 May 03, 2026 12:48:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913350,325ptp4l0-21swapper/107:05:191
3273913350,325ptp4l0-21swapper/107:05:181
297299918521,117cyclictest0-21swapper/812:15:0130
297299918521,117cyclictest0-21swapper/812:15:0130
29667991622,156cyclictest0-21swapper/109:43:331
29667991621,147cyclictest0-21swapper/111:59:511
29667991621,147cyclictest0-21swapper/111:59:501
29667991612,122cyclictest0-21swapper/110:51:261
29667991611,131cyclictest0-21swapper/112:32:591
29667991611,131cyclictest0-21swapper/112:32:591
29667991611,120cyclictest0-21swapper/111:13:201
29667991611,119cyclictest0-21swapper/109:10:111
29667991601,124cyclictest0-21swapper/108:25:001
29667991601,122cyclictest0-21swapper/110:07:041
29743991592,130cyclictest0-21swapper/1008:55:222
330891157148,6phc2sys0-21swapper/207:05:2012
330891157148,6phc2sys0-21swapper/207:05:2012
29743991572,111cyclictest0-21swapper/1010:00:482
29667991571,109cyclictest0-21swapper/110:15:051
297299915441,67cyclictest0-21swapper/812:00:1830
297299915441,67cyclictest0-21swapper/812:00:1830
29667991521,110cyclictest0-21swapper/110:55:421
29667991501,107cyclictest0-21swapper/111:03:271
29743991493,103cyclictest0-21swapper/1011:55:122
29743991493,103cyclictest0-21swapper/1011:55:122
29667991491,107cyclictest0-21swapper/112:19:371
29667991491,107cyclictest0-21swapper/112:19:371
298219914841,72cyclictest0-21swapper/2210:43:4615
29667991471,120cyclictest0-21swapper/107:45:141
29812991440,86cyclictest0-21swapper/2009:20:1113
297299914413,100cyclictest151rcu_preempt12:36:2230
297299914413,100cyclictest151rcu_preempt12:36:2230
29667991441,103cyclictest0-21swapper/110:22:031
29857991420,86cyclictest0-21swapper/2908:25:1422
297299914229,76cyclictest0-21swapper/809:14:3730
297299914228,81cyclictest0-21swapper/811:30:2330
2968199142135,3cyclictest151rcu_preempt09:40:2123
29673991427,84cyclictest0-21swapper/209:20:3412
298349914134,88cyclictest0-21swapper/2512:01:2018
298349914134,88cyclictest0-21swapper/2512:01:1918
297299914124,32cyclictest0-21swapper/811:37:0130
297789914052,56cyclictest0-21swapper/1608:36:298
297299914059,42cyclictest0-21swapper/811:00:2530
29667991401,90cyclictest0-21swapper/110:49:511
2985199139138,0cyclictest185-21ksoftirqd/2810:37:1621
298349913923,85cyclictest0-21swapper/2509:40:1318
297439913923,77cyclictest0-21swapper/1010:54:152
29857991380,85cyclictest0-21swapper/2911:27:4322
29834991380,87cyclictest0-21swapper/2510:09:5318
298219913831,73cyclictest0-21swapper/2209:53:0015
29667991380,86cyclictest0-21swapper/109:21:071
298349913725,71cyclictest0-21swapper/2512:37:0818
298349913725,71cyclictest0-21swapper/2512:37:0818
29834991370,83cyclictest0-21swapper/2511:19:0618
298219913730,98cyclictest0-21swapper/2210:09:3415
298129913765,21cyclictest0-21swapper/2008:35:1613
29778991373,51cyclictest0-21swapper/1608:48:508
298349913632,103cyclictest0-21swapper/2510:49:4218
296739913650,57cyclictest0-21swapper/210:32:1212
297439913523,61cyclictest0-21swapper/1009:53:522
296739913563,46cyclictest0-21swapper/211:26:5712
296739913554,61cyclictest0-21swapper/211:35:4912
298699913431,74cyclictest0-21swapper/3111:34:4125
298579913431,53cyclictest0-21swapper/2910:47:0522
298349913430,76cyclictest0-21swapper/2508:34:1418
298349913429,69cyclictest0-21swapper/2508:51:3418
298349913428,69cyclictest0-21swapper/2509:26:1918
298269913425,43cyclictest0-21swapper/2311:14:4716
297789913435,68cyclictest0-21swapper/1609:11:338
296739913426,70cyclictest0-21swapper/210:48:4712
298349913331,72cyclictest0-21swapper/2511:41:3218
298349913327,73cyclictest0-21swapper/2509:54:0718
298349913327,66cyclictest0-21swapper/2512:16:0818
298349913327,66cyclictest0-21swapper/2512:16:0818
298349913325,64cyclictest0-21swapper/2511:27:0618
297439913348,57cyclictest0-21swapper/1012:35:172
297439913348,57cyclictest0-21swapper/1012:35:162
296739913352,57cyclictest0-21swapper/210:25:4712
296739913324,64cyclictest0-21swapper/209:36:3712
298699913247,54cyclictest0-21swapper/3112:38:5025
298699913247,54cyclictest0-21swapper/3112:38:4925
298699913238,63cyclictest0-21swapper/3109:43:3225
298699913231,75cyclictest0-21swapper/3110:56:1225
298349913231,73cyclictest0-21swapper/2510:14:2518
298349913229,68cyclictest0-21swapper/2509:34:5318
298349913228,69cyclictest0-21swapper/2511:20:4218
298349913228,68cyclictest0-21swapper/2510:37:5618
298349913227,59cyclictest0-21swapper/2511:56:3118
298349913227,59cyclictest0-21swapper/2511:56:3118
297439913243,63cyclictest0-21swapper/1009:22:352
296739913227,62cyclictest0-21swapper/211:50:4712
29673991320,76cyclictest0-21swapper/211:24:3512
298699913141,58cyclictest0-21swapper/3109:10:2325
298699913136,57cyclictest0-21swapper/3112:11:0225
298699913136,57cyclictest0-21swapper/3112:11:0225
298699913127,61cyclictest0-21swapper/3110:12:2325
298349913132,73cyclictest0-21swapper/2509:46:0518
298349913131,72cyclictest0-21swapper/2511:03:5118
298349913130,73cyclictest0-21swapper/2509:20:5918
298349913130,71cyclictest0-21swapper/2512:14:4118
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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