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2026-05-12 - 03:06
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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 May 11, 2026 12:49:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1304699374175,2cyclictest151rcu_preempt11:15:1528
1306099373176,2cyclictest151rcu_preempt11:01:1230
131369928390,1cyclictest151rcu_preempt11:13:5913
3273912200,209ptp4l0-21swapper/107:05:241
130539915732,124cyclictest0-21swapper/709:30:1529
131899915225,111cyclictest0-21swapper/2810:17:0521
13094991487,92cyclictest0-21swapper/1310:25:145
13046991470,88cyclictest0-21swapper/611:46:0128
13060991460,88cyclictest0-21swapper/810:44:0530
130539914621,86cyclictest0-21swapper/711:20:2229
130539914314,115cyclictest0-21swapper/712:15:5829
130469914215,39cyclictest0-21swapper/609:36:5528
131899914151,59cyclictest0-21swapper/2812:35:2121
131899914042,60cyclictest0-21swapper/2809:34:4521
13104991400,82cyclictest0-21swapper/1512:17:417
13053991400,83cyclictest0-21swapper/712:01:3229
13015991390,86cyclictest0-21swapper/107:15:141
131899913846,56cyclictest0-21swapper/2809:25:4221
131899913654,61cyclictest0-21swapper/2811:55:1821
131899913627,63cyclictest0-21swapper/2811:25:2021
131899913533,65cyclictest0-21swapper/2809:40:1221
130609913521,44cyclictest0-21swapper/807:29:5230
13060991340,74cyclictest0-21swapper/808:55:2130
13060991340,74cyclictest0-21swapper/808:55:2130
131899913329,60cyclictest0-21swapper/2809:20:1621
130609913321,48cyclictest0-21swapper/810:06:2630
130159913345,58cyclictest0-21swapper/110:56:131
131899913229,70cyclictest0-21swapper/2812:20:2121
130159913248,55cyclictest0-21swapper/108:47:401
130159913248,55cyclictest0-21swapper/108:47:401
330891131123,6phc2sys0-21swapper/207:09:1912
130469913148,54cyclictest0-21swapper/608:41:3828
130469913148,54cyclictest0-21swapper/608:41:3828
130159913149,60cyclictest0-21swapper/110:17:131
130159913146,63cyclictest0-21swapper/109:08:481
130159913146,63cyclictest0-21swapper/109:08:481
130159913145,60cyclictest0-21swapper/110:05:161
130159913129,67cyclictest0-21swapper/107:51:501
131439913021,35cyclictest0-21swapper/2110:55:1414
131439913016,87cyclictest0-21swapper/2112:14:3914
13060991300,83cyclictest1803-21diskmemload09:45:1730
130159913048,59cyclictest0-21swapper/111:19:131
130159913045,71cyclictest0-21swapper/107:12:011
130159913042,59cyclictest0-21swapper/112:19:221
130159913040,59cyclictest0-21swapper/111:54:291
130159913035,62cyclictest0-21swapper/112:38:341
130159913027,69cyclictest0-21swapper/108:05:131
130159913027,69cyclictest0-21swapper/108:05:131
130159913025,63cyclictest0-21swapper/112:21:451
130159913025,61cyclictest0-21swapper/109:00:021
130159913025,61cyclictest0-21swapper/109:00:021
131899912929,59cyclictest0-21swapper/2807:32:3621
130539912917,81cyclictest0-21swapper/711:50:1929
130159912955,63cyclictest0-21swapper/108:50:381
130159912955,63cyclictest0-21swapper/108:50:371
130159912945,60cyclictest0-21swapper/110:12:561
130159912942,55cyclictest0-21swapper/109:14:401
130159912929,66cyclictest0-21swapper/111:26:101
130159912929,66cyclictest0-21swapper/111:06:541
130159912929,66cyclictest0-21swapper/109:00:151
130159912929,66cyclictest0-21swapper/109:00:141
130159912928,64cyclictest0-21swapper/110:48:451
130159912925,67cyclictest0-21swapper/110:28:441
130609912816,83cyclictest0-21swapper/810:26:1430
130159912844,59cyclictest0-21swapper/109:33:541
130159912841,63cyclictest0-21swapper/110:43:431
130159912840,58cyclictest0-21swapper/108:03:351
130159912840,58cyclictest0-21swapper/108:03:351
130159912828,64cyclictest0-21swapper/111:22:251
130159912826,66cyclictest0-21swapper/112:30:361
131439912746,53cyclictest0-21swapper/2110:13:1614
131439912724,27cyclictest0-21swapper/2112:06:3414
130609912723,57cyclictest0-21swapper/809:50:2530
130609912722,68cyclictest0-21swapper/810:53:5930
130159912747,60cyclictest0-21swapper/107:34:321
130159912737,60cyclictest0-21swapper/109:17:211
130159912737,60cyclictest0-21swapper/109:17:211
130159912728,75cyclictest0-21swapper/110:04:541
130159912728,72cyclictest0-21swapper/109:44:031
130159912727,69cyclictest0-21swapper/109:37:391
130159912727,65cyclictest0-21swapper/111:49:071
130159912727,64cyclictest0-21swapper/111:13:201
130159912727,64cyclictest0-21swapper/111:04:471
131439912654,57cyclictest0-21swapper/2107:15:3514
130159912645,63cyclictest0-21swapper/111:43:481
130159912642,55cyclictest0-21swapper/109:52:531
130159912633,74cyclictest0-21swapper/107:41:421
130159912630,72cyclictest0-21swapper/112:01:571
130159912629,76cyclictest0-21swapper/110:23:351
130159912628,71cyclictest0-21swapper/108:20:421
130159912628,71cyclictest0-21swapper/108:20:421
130159912628,64cyclictest0-21swapper/111:33:371
130159912627,65cyclictest0-21swapper/108:34:041
130159912627,65cyclictest0-21swapper/108:34:041
130159912626,58cyclictest0-21swapper/107:48:381
130609912524,59cyclictest0-21swapper/812:03:1330
130609912520,73cyclictest0-21swapper/810:46:3230
130159912529,70cyclictest0-21swapper/112:28:091
130159912529,66cyclictest0-21swapper/111:35:021
130159912528,73cyclictest0-21swapper/109:55:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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