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2026-07-08 - 21:56
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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 Jul 08, 2026 12:49:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913040,295ptp4l0-21swapper/107:09:471
266459921928,156cyclictest0-21swapper/2112:09:5914
266459920022,156cyclictest0-21swapper/2109:21:0514
266709918210,154cyclictest0-21swapper/2509:38:1618
266709918110,170cyclictest0-21swapper/2507:10:0118
266879918033,103cyclictest0-21swapper/2708:53:1320
266459918028,133cyclictest0-21swapper/2111:10:0714
266879917728,143cyclictest0-21swapper/2710:38:4220
266879917728,143cyclictest0-21swapper/2710:38:4120
266709917610,156cyclictest0-21swapper/2509:30:1418
266459917634,101cyclictest151rcu_preempt11:54:1514
266879917426,104cyclictest0-21swapper/2709:30:1620
266879917127,98cyclictest0-21swapper/2710:42:2620
2664599168166,1cyclictest143-21ksoftirqd/2109:17:2114
266459916528,84cyclictest0-21swapper/2110:40:4414
266459916326,92cyclictest0-21swapper/2111:20:1814
266459916127,82cyclictest0-21swapper/2111:37:2314
266709915610,88cyclictest0-21swapper/2511:09:2518
2664599150149,0cyclictest143-21ksoftirqd/2110:54:3714
2664599150149,0cyclictest143-21ksoftirqd/2110:54:3714
266879914927,81cyclictest0-21swapper/2712:35:2720
266709914810,101cyclictest0-21swapper/2508:30:1018
26628991460,86cyclictest0-21swapper/1710:16:379
26628991460,86cyclictest0-21swapper/1710:16:379
26584991460,104cyclictest0-21swapper/610:53:5128
26584991460,104cyclictest0-21swapper/610:53:5028
266709914510,86cyclictest0-21swapper/2510:52:3418
266709914510,86cyclictest0-21swapper/2510:52:3418
265539914412,79cyclictest0-21swapper/011:58:120
266459914328,15cyclictest0-21swapper/2109:54:1314
265849914228,70cyclictest0-21swapper/610:34:0528
265849914228,70cyclictest0-21swapper/610:34:0428
266459914129,57cyclictest0-21swapper/2108:05:1214
265849914131,69cyclictest0-21swapper/611:30:1328
266879914018,74cyclictest0-21swapper/2711:35:5420
265849914041,64cyclictest0-21swapper/608:25:1828
26584991401,83cyclictest0-21swapper/611:35:3228
26584991400,88cyclictest0-21swapper/611:03:2928
26584991400,83cyclictest0-21swapper/609:40:3728
26584991400,81cyclictest0-21swapper/610:15:2228
26584991400,81cyclictest0-21swapper/610:15:2128
26628991390,87cyclictest0-21swapper/1712:34:319
26584991393,79cyclictest0-21swapper/611:51:0328
265849913931,66cyclictest0-21swapper/608:35:2528
265849913930,65cyclictest0-21swapper/609:20:1828
265849913929,65cyclictest0-21swapper/612:25:1428
265849913929,64cyclictest0-21swapper/610:56:1028
265849913929,64cyclictest0-21swapper/610:56:0928
265849913928,64cyclictest0-21swapper/611:20:0328
26584991390,82cyclictest0-21swapper/609:34:4528
26584991390,82cyclictest0-21swapper/609:18:4228
266459913820,114cyclictest151rcu_preempt10:18:5014
266459913820,114cyclictest151rcu_preempt10:18:5014
265849913855,61cyclictest0-21swapper/612:09:1228
265849913851,60cyclictest0-21swapper/608:20:2728
265849913831,67cyclictest0-21swapper/611:11:2928
26553991388,68cyclictest0-21swapper/008:55:240
265849913749,61cyclictest0-21swapper/610:25:1728
265849913749,61cyclictest0-21swapper/610:25:1628
265849913730,63cyclictest0-21swapper/610:35:4028
265849913730,63cyclictest0-21swapper/610:35:4028
265849913729,67cyclictest0-21swapper/610:45:1828
265849913729,67cyclictest0-21swapper/610:45:1828
26584991371,81cyclictest0-21swapper/611:55:1828
26584991370,82cyclictest0-21swapper/612:04:5728
265849913654,65cyclictest0-21swapper/608:10:1928
265849913629,67cyclictest0-21swapper/607:55:2128
265849913628,64cyclictest0-21swapper/609:13:2128
265849913628,63cyclictest0-21swapper/608:40:1328
266879913527,72cyclictest0-21swapper/2712:01:0120
266339913545,89cyclictest0-21swapper/1809:22:3810
265849913554,64cyclictest0-21swapper/612:35:2428
265849913534,63cyclictest0-21swapper/607:15:4728
265849913533,69cyclictest0-21swapper/611:19:3028
265849913528,63cyclictest0-21swapper/609:50:1528
26584991350,82cyclictest0-21swapper/611:49:2628
267139913420,61cyclictest0-21swapper/3108:50:1425
267139913417,67cyclictest151rcu_preempt07:56:4925
266709913410,68cyclictest0-21swapper/2512:06:2018
265939913450,27cyclictest0-21swapper/809:50:1030
265849913443,64cyclictest0-21swapper/611:44:2028
265849913429,56cyclictest0-21swapper/612:30:4528
267139913310,121cyclictest0-21swapper/3112:00:1825
266709913349,59cyclictest0-21swapper/2510:17:3518
266709913349,59cyclictest0-21swapper/2510:17:3518
266709913339,63cyclictest0-21swapper/2508:40:2518
266709913326,69cyclictest0-21swapper/2510:13:1718
266339913345,87cyclictest0-21swapper/1810:52:2410
266339913345,87cyclictest0-21swapper/1810:52:2410
265849913326,64cyclictest0-21swapper/610:42:3728
26584991330,77cyclictest0-21swapper/609:26:2128
266709913252,51cyclictest0-21swapper/2512:16:4918
266709913210,77cyclictest0-21swapper/2509:58:5318
266459913254,56cyclictest0-21swapper/2107:26:2814
266459913247,57cyclictest0-21swapper/2107:30:2814
265849913229,66cyclictest0-21swapper/607:50:3128
265849913225,63cyclictest0-21swapper/609:35:4728
266709913130,63cyclictest0-21swapper/2508:27:0418
266459913140,57cyclictest0-21swapper/2111:41:0914
265849913128,64cyclictest0-21swapper/609:47:3428
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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