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2026-04-25 - 17:45
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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 Sat Apr 25, 2026 12:48:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913220,314ptp4l0-21swapper/107:06:541
3273913220,314ptp4l0-21swapper/107:06:531
24499928891,3cyclictest151rcu_preempt11:12:3926
246499235168,3cyclictest151rcu_preempt11:39:1030
11732187180,6sleep30-21swapper/307:08:5323
11732187180,6sleep30-21swapper/307:08:5323
25129916730,1cyclictest151rcu_preempt11:20:0311
24699914818,123cyclictest0-21swapper/911:15:2231
24309914811,80cyclictest0-21swapper/111:30:401
24699914719,127cyclictest0-21swapper/910:35:1731
24699914718,95cyclictest0-21swapper/909:54:5331
24699914718,109cyclictest0-21swapper/911:24:4131
24699914618,87cyclictest0-21swapper/909:39:2431
24699914618,101cyclictest0-21swapper/912:28:2431
24699914617,111cyclictest0-21swapper/908:03:1931
24309914618,110cyclictest151rcu_preempt10:56:351
24699914518,40cyclictest0-21swapper/908:10:1531
24699914517,102cyclictest0-21swapper/910:13:1031
2545991440,86cyclictest0-21swapper/2308:24:1616
24309914432,100cyclictest151rcu_preempt10:52:461
24649914316,36cyclictest0-21swapper/810:01:0430
2545991420,80cyclictest0-21swapper/2307:55:2616
24649914268,72cyclictest64-21ksoftirqd/810:14:5830
24409914112,76cyclictest0-21swapper/310:31:4123
24969913862,56cyclictest0-21swapper/1611:46:428
24699913719,58cyclictest0-21swapper/910:21:0431
2464991350,82cyclictest0-21swapper/811:34:3730
24699913318,70cyclictest0-21swapper/912:31:3031
24779913129,61cyclictest0-21swapper/1108:50:163
24779913027,62cyclictest0-21swapper/1111:43:573
24699913019,70cyclictest0-21swapper/910:07:4431
24589913023,65cyclictest0-21swapper/612:23:4028
2599991290,87cyclictest0-21swapper/3012:36:3924
2599991290,87cyclictest0-21swapper/3012:36:3824
24779912928,57cyclictest0-21swapper/1110:25:233
24589912916,85cyclictest31452-21swap12:30:2228
25459912846,56cyclictest0-21swapper/2310:06:2116
24779912726,56cyclictest0-21swapper/1112:15:283
246499127125,1cyclictest0-21swapper/812:35:0030
24589912727,60cyclictest0-21swapper/609:40:2528
24309912733,73cyclictest0-21swapper/109:46:441
25459912631,45cyclictest0-21swapper/2311:00:1916
24589912629,64cyclictest0-21swapper/611:05:3928
24409912644,49cyclictest0-21swapper/312:13:1323
24969912549,45cyclictest0-21swapper/1611:15:438
24779912526,61cyclictest0-21swapper/1107:40:153
24699912515,85cyclictest0-21swapper/909:11:0431
24589912538,58cyclictest0-21swapper/609:49:1628
24589912538,56cyclictest0-21swapper/611:34:1528
24589912524,69cyclictest0-21swapper/612:01:3128
24969912447,76cyclictest0-21swapper/1611:25:228
24969912447,76cyclictest0-21swapper/1611:25:228
24649912446,77cyclictest64-21ksoftirqd/809:10:5130
24649912416,104cyclictest151rcu_preempt10:20:2130
24589912429,64cyclictest0-21swapper/610:24:1428
24589912428,62cyclictest0-21swapper/612:17:4228
24589912423,58cyclictest0-21swapper/608:59:3228
24309912413,88cyclictest0-21swapper/112:02:121
25459912323,60cyclictest0-21swapper/2312:01:4716
24699912318,75cyclictest0-21swapper/910:59:0231
24699912318,56cyclictest0-21swapper/908:18:1631
24589912329,76cyclictest0-21swapper/610:08:4428
24589912328,66cyclictest0-21swapper/611:36:5528
24589912327,62cyclictest0-21swapper/610:51:3928
24589912326,66cyclictest0-21swapper/607:45:0128
24589912326,63cyclictest0-21swapper/611:55:4828
24589912324,73cyclictest0-21swapper/609:57:4328
24409912327,61cyclictest0-21swapper/311:44:2123
24309912346,49cyclictest0-21swapper/108:46:551
2582991220,81cyclictest0-21swapper/2807:25:2321
2582991220,81cyclictest0-21swapper/2807:25:2321
25459912234,57cyclictest0-21swapper/2309:34:1616
25459912227,65cyclictest0-21swapper/2311:57:3116
25459912223,59cyclictest0-21swapper/2311:36:4016
25459912222,61cyclictest0-21swapper/2311:40:2516
24589912250,61cyclictest0-21swapper/612:07:2428
24589912228,63cyclictest0-21swapper/610:57:2228
24409912246,28cyclictest25804-21taskset10:36:4423
2435991220,93cyclictest0-21swapper/207:10:1212
2435991220,93cyclictest0-21swapper/207:10:1112
24309912220,45cyclictest0-21swapper/111:45:231
24309912216,69cyclictest0-21swapper/107:47:491
25459912127,63cyclictest0-21swapper/2310:33:3716
25459912124,62cyclictest0-21swapper/2309:24:3916
24589912129,70cyclictest0-21swapper/611:17:5028
24589912128,62cyclictest0-21swapper/609:35:0328
24589912127,64cyclictest0-21swapper/609:30:4728
24589912126,67cyclictest0-21swapper/610:00:4328
24589912125,59cyclictest0-21swapper/608:26:4928
24589912124,62cyclictest0-21swapper/611:43:2028
24589912123,58cyclictest0-21swapper/612:27:4328
24589912119,67cyclictest0-21swapper/607:25:4528
24589912119,67cyclictest0-21swapper/607:25:4528
24409912127,61cyclictest0-21swapper/309:22:4323
24409912125,61cyclictest0-21swapper/311:17:0623
24309912147,52cyclictest0-21swapper/111:43:471
24309912110,110cyclictest0-21swapper/111:54:291
25459912026,64cyclictest0-21swapper/2311:46:1816
25459912026,62cyclictest0-21swapper/2311:12:0516
25459912025,62cyclictest0-21swapper/2312:07:5416
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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