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2026-07-18 - 07:33
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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 Jul 18, 2026 00:48:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62089929322,72cyclictest137-21ksoftirqd/2023:35:1513
61089927844,36cyclictest13-21ksoftirqd/022:58:500
61159925963,1cyclictest151rcu_preempt21:24:591
3273912080,200ptp4l0-21swapper/119:07:201
61669916555,74cyclictest0-21swapper/1000:28:582
62399916425,138cyclictest0-21swapper/2519:35:1818
62399916425,138cyclictest0-21swapper/2519:35:1818
62399916425,118cyclictest0-21swapper/2523:57:1018
62399916325,96cyclictest0-21swapper/2500:13:4518
62399916325,95cyclictest0-21swapper/2522:58:5518
62399916025,83cyclictest0-21swapper/2500:06:1618
62399915825,77cyclictest0-21swapper/2500:29:1518
62399915425,75cyclictest0-21swapper/2522:22:0218
62399915025,73cyclictest0-21swapper/2521:53:1018
62399914823,82cyclictest0-21swapper/2523:38:2818
62399914724,81cyclictest0-21swapper/2521:46:1318
62399914723,80cyclictest0-21swapper/2521:40:2118
6121991474,141cyclictest0-21swapper/223:48:1412
6121991474,123cyclictest0-21swapper/221:14:1812
6239991460,86cyclictest0-21swapper/2500:33:3118
6121991463,109cyclictest0-21swapper/222:31:1512
62399914528,20cyclictest167-21ksoftirqd/2523:17:3718
6145991451,85cyclictest0-21swapper/623:25:5128
61419914553,56cyclictest0-21swapper/519:30:0927
61419914553,56cyclictest0-21swapper/519:30:0927
62089914427,116cyclictest0-21swapper/2000:25:2013
62089914327,115cyclictest0-21swapper/2000:03:5013
62089914327,114cyclictest0-21swapper/2019:55:1913
62089914327,114cyclictest0-21swapper/2019:55:1913
62089914327,100cyclictest0-21swapper/2023:00:1513
62089914227,84cyclictest0-21swapper/2022:28:1013
61419914245,58cyclictest0-21swapper/522:25:2627
61949914128,83cyclictest0-21swapper/1722:18:109
61459914151,58cyclictest0-21swapper/620:25:1528
6145991410,82cyclictest0-21swapper/623:15:1028
6121991414,136cyclictest0-21swapper/223:29:0012
62089914024,112cyclictest0-21swapper/2021:51:4913
61419914054,55cyclictest0-21swapper/521:48:2127
62089913923,115cyclictest0-21swapper/2021:45:2413
62039913928,110cyclictest0-21swapper/1921:28:2911
62089913820,116cyclictest0-21swapper/2022:15:2413
61949913828,84cyclictest0-21swapper/1721:46:059
61459913829,63cyclictest0-21swapper/623:12:4828
62089913721,98cyclictest0-21swapper/2019:49:5813
62089913721,98cyclictest0-21swapper/2019:49:5813
61949913728,69cyclictest0-21swapper/1721:28:599
6145991370,83cyclictest0-21swapper/621:45:2128
61419913738,59cyclictest0-21swapper/522:42:3327
6121991374,76cyclictest0-21swapper/223:40:1312
62089913621,96cyclictest0-21swapper/2023:06:4313
61949913628,64cyclictest0-21swapper/1723:37:489
615299136134,1cyclictest151rcu_preempt21:40:2029
6145991360,82cyclictest0-21swapper/622:31:2028
6145991360,81cyclictest0-21swapper/623:08:4528
61949913525,101cyclictest0-21swapper/1722:39:009
61459913529,68cyclictest0-21swapper/622:48:0428
61459913526,65cyclictest0-21swapper/600:20:5428
6145991350,79cyclictest0-21swapper/619:28:3428
6145991350,79cyclictest0-21swapper/619:28:3428
61419913534,65cyclictest0-21swapper/500:16:0527
62299913423,108cyclictest0-21swapper/2400:29:0117
62089913419,83cyclictest0-21swapper/2021:29:5413
61949913425,70cyclictest0-21swapper/1700:00:159
61459913429,63cyclictest0-21swapper/620:10:1528
61459913428,64cyclictest0-21swapper/600:13:5728
61419913432,66cyclictest0-21swapper/519:20:1527
61419913432,66cyclictest0-21swapper/519:20:1527
61419913428,62cyclictest0-21swapper/500:09:0827
62299913323,108cyclictest0-21swapper/2423:28:0617
62299913323,108cyclictest0-21swapper/2423:00:1817
62039913326,65cyclictest0-21swapper/1900:14:1111
61949913327,26cyclictest0-21swapper/1723:52:469
61459913331,64cyclictest0-21swapper/623:49:5428
61419913347,51cyclictest0-21swapper/500:38:0027
6239991320,86cyclictest0-21swapper/2523:29:2318
62299913223,84cyclictest0-21swapper/2423:30:1417
62299913223,81cyclictest0-21swapper/2421:25:1417
62039913220,65cyclictest0-21swapper/1921:55:4511
61419913229,59cyclictest0-21swapper/520:15:3427
6121991320,88cyclictest0-21swapper/221:10:0112
62399913126,62cyclictest0-21swapper/2521:34:2818
62399913125,64cyclictest0-21swapper/2523:02:3918
62299913123,79cyclictest0-21swapper/2421:59:0217
62299913122,78cyclictest0-21swapper/2421:10:1517
62039913130,69cyclictest0-21swapper/1922:37:2611
62039913129,68cyclictest0-21swapper/1923:00:5711
62039913127,70cyclictest0-21swapper/1900:35:2211
62039913127,67cyclictest0-21swapper/1922:30:2611
61459913131,66cyclictest0-21swapper/623:44:1728
61459913130,66cyclictest0-21swapper/621:30:2428
61459913129,65cyclictest0-21swapper/621:35:1328
61459913128,58cyclictest0-21swapper/622:10:3028
62299913023,10cyclictest0-21swapper/2419:11:1717
62299913023,10cyclictest0-21swapper/2419:11:1717
62299913021,98cyclictest0-21swapper/2422:06:2317
62039913030,66cyclictest0-21swapper/1920:20:2211
62039913029,63cyclictest0-21swapper/1923:12:4011
62039913028,66cyclictest0-21swapper/1921:13:3111
62039913027,67cyclictest0-21swapper/1921:39:4311
61459913032,65cyclictest0-21swapper/600:19:5028
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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