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2026-04-29 - 20:35
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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 Wed Apr 29, 2026 12:49:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913320,324ptp4l0-21swapper/107:05:281
1508299300102,1cyclictest151rcu_preempt10:33:2617
1508299300102,197cyclictest151rcu_preempt12:20:2017
122032239227,8sleep210-21swapper/2107:05:2714
150879922616,140cyclictest0-21swapper/2508:20:0218
151009917821,103cyclictest151rcu_preempt11:20:1621
15100991718,142cyclictest151rcu_preempt07:40:0821
15035991691,167cyclictest0-21swapper/1410:20:376
151009915422,107cyclictest0-21swapper/2807:30:1321
150879915217,92cyclictest0-21swapper/2511:51:4018
150879915216,126cyclictest0-21swapper/2511:26:5318
150309915064,45cyclictest0-21swapper/1310:49:295
1505299149148,1cyclictest35550irq/50-ahci[00012:37:0210
150879914717,77cyclictest0-21swapper/2507:20:1218
149559914423,71cyclictest0-21swapper/108:06:491
150879914116,105cyclictest0-21swapper/2509:57:5118
15087991400,87cyclictest0-21swapper/2510:22:1018
150309914047,58cyclictest0-21swapper/1307:11:595
15087991390,86cyclictest0-21swapper/2512:30:4118
14968991390,77cyclictest0-21swapper/312:30:2023
150309913847,60cyclictest0-21swapper/1309:28:475
150309913822,71cyclictest0-21swapper/1311:37:395
150309913728,71cyclictest0-21swapper/1309:05:015
150309913728,71cyclictest0-21swapper/1309:05:015
149689913729,71cyclictest0-21swapper/309:43:0323
150879913616,119cyclictest0-21swapper/2508:50:2218
150879913616,119cyclictest0-21swapper/2508:50:2218
150359913619,72cyclictest0-21swapper/1412:13:576
150309913649,58cyclictest0-21swapper/1308:26:155
150309913649,58cyclictest0-21swapper/1308:26:155
150309913645,59cyclictest0-21swapper/1312:19:525
150309913642,68cyclictest0-21swapper/1311:04:115
15030991360,84cyclictest0-21swapper/1311:56:505
150309913554,57cyclictest0-21swapper/1308:03:175
150309913527,70cyclictest0-21swapper/1307:56:525
15100991345,73cyclictest0-21swapper/2808:41:4521
15100991345,73cyclictest0-21swapper/2808:41:4521
150389913442,88cyclictest0-21swapper/1511:25:197
150359913424,33cyclictest0-21swapper/1411:05:006
150359913420,76cyclictest0-21swapper/1410:30:486
150309913430,71cyclictest0-21swapper/1309:14:205
150309913429,69cyclictest0-21swapper/1309:43:455
150309913421,25cyclictest0-21swapper/1312:13:435
14968991340,90cyclictest0-21swapper/308:31:2623
14968991340,90cyclictest0-21swapper/308:31:2623
14968991340,84cyclictest0-21swapper/307:51:5423
150309913346,66cyclictest0-21swapper/1311:17:495
150309913336,68cyclictest0-21swapper/1309:19:425
150309913336,68cyclictest0-21swapper/1309:19:425
150309913329,68cyclictest0-21swapper/1311:49:215
150309913327,68cyclictest0-21swapper/1312:20:565
151009913217,86cyclictest0-21swapper/2807:55:2221
150309913231,73cyclictest0-21swapper/1309:09:005
150309913231,73cyclictest0-21swapper/1309:09:005
150309913228,70cyclictest0-21swapper/1311:44:355
150309913228,67cyclictest0-21swapper/1311:29:345
150309913228,66cyclictest0-21swapper/1308:16:385
150309913228,66cyclictest0-21swapper/1308:16:375
150309913227,71cyclictest0-21swapper/1310:10:175
150309913227,69cyclictest0-21swapper/1308:09:425
14987991321,91cyclictest0-21swapper/611:23:3528
151009913115,110cyclictest5544-21dd12:35:2221
150879913117,70cyclictest0-21swapper/2508:30:3518
150879913117,70cyclictest0-21swapper/2508:30:3518
150309913156,67cyclictest0-21swapper/1312:35:065
150309913149,58cyclictest0-21swapper/1307:44:035
150309913132,74cyclictest0-21swapper/1310:54:185
150309913129,73cyclictest0-21swapper/1310:28:065
150309913129,71cyclictest0-21swapper/1311:13:005
150309913129,71cyclictest0-21swapper/1310:44:415
151009913068,45cyclictest5543-21ssh12:31:3821
151009913019,104cyclictest151rcu_preempt09:47:3221
150359913052,55cyclictest0-21swapper/1410:04:036
150359913047,51cyclictest0-21swapper/1408:28:256
150359913047,51cyclictest0-21swapper/1408:28:256
150309913048,75cyclictest0-21swapper/1308:23:035
150309913048,75cyclictest0-21swapper/1308:23:035
150309913034,74cyclictest0-21swapper/1311:07:405
150309913030,73cyclictest0-21swapper/1312:27:505
150309913030,71cyclictest0-21swapper/1312:00:195
150309913030,70cyclictest0-21swapper/1312:34:345
150309913029,74cyclictest0-21swapper/1310:02:595
150309913029,71cyclictest0-21swapper/1310:07:165
150309913029,69cyclictest0-21swapper/1310:55:545
150309913027,65cyclictest0-21swapper/1307:29:055
150309913025,71cyclictest0-21swapper/1312:07:165
149879913044,52cyclictest0-21swapper/611:02:4428
149879913029,60cyclictest0-21swapper/612:30:2328
151009912926,91cyclictest0-21swapper/2809:27:1421
150359912916,68cyclictest0-21swapper/1407:21:366
150309912940,62cyclictest0-21swapper/1308:30:325
150309912940,62cyclictest0-21swapper/1308:30:325
150309912931,72cyclictest0-21swapper/1309:57:065
150309912930,71cyclictest0-21swapper/1308:11:535
150309912930,71cyclictest0-21swapper/1308:11:535
150309912930,66cyclictest0-21swapper/1310:32:555
150309912929,72cyclictest0-21swapper/1310:16:215
150309912928,72cyclictest0-21swapper/1311:52:015
150309912928,67cyclictest0-21swapper/1309:49:055
149879912943,63cyclictest0-21swapper/608:57:5628
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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