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2026-05-23 - 05:08
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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 May 23, 2026 00:49:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2979599310308,1cyclictest14484-21lspci21:46:4131
3273912850,277ptp4l0-21swapper/119:09:281
299009927564,207cyclictest0-21swapper/2823:16:2821
2990099181179,1cyclictest151rcu_preempt22:29:5821
299009917327,145cyclictest0-21swapper/2823:05:1921
299009917025,132cyclictest0-21swapper/2800:14:4321
299109916976,91cyclictest0-21swapper/3022:44:5624
299009916219,104cyclictest0-21swapper/2823:28:1421
298369916023,80cyclictest0-21swapper/1723:24:309
299009915567,87cyclictest185-21ksoftirqd/2823:00:5821
299009915427,78cyclictest0-21swapper/2823:51:1221
2976499152151,1cyclictest28-21ksoftirqd/221:16:3112
2976499152151,1cyclictest28-21ksoftirqd/221:16:3112
297869915121,130cyclictest0-21swapper/722:41:0329
297649914935,113cyclictest0-21swapper/221:20:1612
297649914935,113cyclictest0-21swapper/221:20:1512
297869914820,105cyclictest0-21swapper/721:52:3329
297649914835,112cyclictest0-21swapper/222:46:1812
299009914759,87cyclictest185-21ksoftirqd/2822:16:3621
29795991430,82cyclictest0-21swapper/921:10:1331
29795991430,82cyclictest0-21swapper/921:10:1331
297649914228,98cyclictest0-21swapper/221:41:3812
297869914120,71cyclictest0-21swapper/723:00:1629
29892991400,79cyclictest0-21swapper/2623:26:4719
297649914026,84cyclictest0-21swapper/222:23:1912
297649913825,81cyclictest0-21swapper/200:21:2812
299009913551,52cyclictest0-21swapper/2820:30:1621
299009913551,52cyclictest0-21swapper/2820:30:1521
298929913525,79cyclictest0-21swapper/2623:10:1319
297779913420,101cyclictest0-21swapper/523:12:3327
29795991330,82cyclictest0-21swapper/923:49:2931
297869913320,62cyclictest0-21swapper/700:21:4129
29777991320,82cyclictest0-21swapper/520:15:1327
29777991320,82cyclictest0-21swapper/520:15:1227
29768991320,96cyclictest34-21ksoftirqd/323:32:4923
29768991310,86cyclictest0-21swapper/320:15:0523
29768991310,86cyclictest0-21swapper/320:15:0523
297779913043,56cyclictest0-21swapper/523:20:2127
297649913016,92cyclictest0-21swapper/200:05:2412
299009912950,54cyclictest0-21swapper/2800:02:5821
297959912913,70cyclictest0-21swapper/921:32:1531
299009912847,52cyclictest0-21swapper/2800:15:1721
299009912840,60cyclictest0-21swapper/2821:45:1421
298799912814,111cyclictest161-21ksoftirqd/2422:43:5517
29812991283,74cyclictest0-21swapper/1121:15:223
29812991283,74cyclictest0-21swapper/1121:15:223
297869912820,66cyclictest0-21swapper/721:16:0429
297869912820,66cyclictest0-21swapper/721:16:0429
29786991280,70cyclictest0-21swapper/723:17:5529
297779912826,61cyclictest0-21swapper/523:51:0227
299009912754,62cyclictest0-21swapper/2823:58:1021
299009912734,60cyclictest0-21swapper/2823:35:4221
298369912749,77cyclictest0-21swapper/1722:16:049
297959912745,58cyclictest0-21swapper/920:10:2231
297779912726,61cyclictest0-21swapper/521:37:2427
297779912720,97cyclictest29809-21ssh23:25:1227
29777991270,82cyclictest0-21swapper/522:01:5927
297689912723,73cyclictest0-21swapper/322:06:5923
299009912650,53cyclictest0-21swapper/2821:57:5421
299009912637,58cyclictest0-21swapper/2823:48:3221
299009912626,68cyclictest0-21swapper/2820:41:2921
299009912626,68cyclictest0-21swapper/2820:41:2921
299009912626,66cyclictest0-21swapper/2822:39:5021
297959912648,57cyclictest0-21swapper/919:32:1031
297959912648,50cyclictest0-21swapper/900:03:2431
297959912631,62cyclictest0-21swapper/922:36:1731
297959912628,66cyclictest0-21swapper/923:20:3831
297959912628,66cyclictest0-21swapper/921:18:0331
297959912628,66cyclictest0-21swapper/921:18:0231
297959912628,64cyclictest0-21swapper/920:35:1631
297959912628,64cyclictest0-21swapper/920:35:1631
297869912620,65cyclictest0-21swapper/721:20:2029
297869912620,65cyclictest0-21swapper/721:20:2029
297779912654,59cyclictest0-21swapper/500:07:0427
297779912638,65cyclictest0-21swapper/521:59:2027
297779912626,68cyclictest0-21swapper/521:49:5427
297779912625,67cyclictest0-21swapper/521:52:5427
297779912620,103cyclictest24487-21runrttasks00:29:3127
297689912630,77cyclictest0-21swapper/322:12:0723
297649912617,74cyclictest0-21swapper/223:15:1112
299009912525,59cyclictest0-21swapper/2820:55:2321
299009912525,59cyclictest0-21swapper/2820:55:2221
297959912540,64cyclictest0-21swapper/922:20:1631
297959912529,94cyclictest0-21swapper/919:45:2231
297959912527,67cyclictest0-21swapper/921:41:2031
297959912527,66cyclictest0-21swapper/923:43:0531
297959912527,65cyclictest0-21swapper/923:26:3131
297959912526,70cyclictest0-21swapper/900:37:4531
297959912526,69cyclictest0-21swapper/922:29:2031
297959912526,65cyclictest0-21swapper/923:30:2031
297959912526,63cyclictest0-21swapper/922:02:0331
297959912525,60cyclictest0-21swapper/920:55:0231
297959912525,60cyclictest0-21swapper/920:55:0231
297959912524,61cyclictest0-21swapper/923:50:0231
297779912527,64cyclictest0-21swapper/521:24:3527
297779912527,64cyclictest0-21swapper/521:24:3527
297779912526,66cyclictest0-21swapper/500:33:1527
29768991250,81cyclictest0-21swapper/300:17:4423
299009912429,61cyclictest0-21swapper/2820:16:5121
299009912429,61cyclictest0-21swapper/2820:16:5121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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