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2025-10-21 - 18:11
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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 Tue Oct 21, 2025 12:49:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913020,293ptp4l0-21swapper/107:07:101
31959921462,50cyclictest161-21ksoftirqd/2411:00:5217
31019917616,134cyclictest0-21swapper/612:19:5028
31099917546,128cyclictest64-21ksoftirqd/812:19:5630
31019916716,111cyclictest0-21swapper/610:17:3728
31019916516,121cyclictest0-21swapper/610:20:3928
31249916229,132cyclictest0-21swapper/1212:17:514
31249916041,73cyclictest0-21swapper/1210:06:084
31389915933,92cyclictest0-21swapper/1409:59:566
31389915529,112cyclictest0-21swapper/1411:43:386
316099154109,28cyclictest0-21swapper/1807:10:0710
31019915416,90cyclictest0-21swapper/607:15:1528
31549915317,101cyclictest0-21swapper/1711:41:329
31019915317,113cyclictest151rcu_preempt10:05:1028
31249915133,54cyclictest0-21swapper/1208:40:124
31249915133,54cyclictest0-21swapper/1208:40:114
31019915045,21cyclictest52-21ksoftirqd/609:49:0628
31019914916,75cyclictest0-21swapper/609:51:4828
31549914817,92cyclictest0-21swapper/1712:24:189
3154991480,83cyclictest0-21swapper/1709:12:589
3154991480,83cyclictest0-21swapper/1709:12:589
31549914517,95cyclictest0-21swapper/1711:10:019
31469914420,45cyclictest0-21swapper/1611:21:058
31959914012,100cyclictest151rcu_preempt11:05:4117
31549914017,82cyclictest0-21swapper/1711:24:599
31469914025,114cyclictest0-21swapper/1612:33:108
2482911400,21ptp4l0-21swapper/109:35:091
2482911400,21ptp4l0-21swapper/109:35:081
3146991390,86cyclictest0-21swapper/1610:15:178
31449913949,56cyclictest0-21swapper/1510:09:367
31389913986,50cyclictest0-21swapper/1407:30:216
31019913816,74cyclictest0-21swapper/611:45:0528
3085991380,83cyclictest0-21swapper/210:10:2612
31959913732,104cyclictest0-21swapper/2410:08:4417
31469913718,91cyclictest0-21swapper/1609:22:538
31469913718,91cyclictest0-21swapper/1609:22:528
31249913726,74cyclictest0-21swapper/1212:06:554
32209913631,62cyclictest0-21swapper/2708:05:1220
31959913631,74cyclictest0-21swapper/2411:33:2717
31959913630,105cyclictest0-21swapper/2410:37:2017
31469913626,92cyclictest0-21swapper/1610:30:278
31249913650,58cyclictest0-21swapper/1209:35:084
31249913650,58cyclictest0-21swapper/1209:35:074
31449913548,54cyclictest0-21swapper/1509:50:217
31449913542,58cyclictest0-21swapper/1509:55:107
31449913446,57cyclictest0-21swapper/1510:20:497
31249913430,69cyclictest0-21swapper/1212:24:144
31249913429,68cyclictest0-21swapper/1210:46:264
31249913427,64cyclictest0-21swapper/1212:11:104
3211991330,83cyclictest0-21swapper/2610:38:3819
31549913317,84cyclictest0-21swapper/1712:16:489
31469913352,55cyclictest0-21swapper/1610:46:498
31449913329,63cyclictest0-21swapper/1509:37:327
31449913329,63cyclictest0-21swapper/1509:37:317
31389913345,56cyclictest0-21swapper/1410:04:136
31249913354,61cyclictest0-21swapper/1209:21:294
31249913354,61cyclictest0-21swapper/1209:21:284
31249913330,69cyclictest0-21swapper/1210:57:274
31249913328,65cyclictest0-21swapper/1209:57:344
31469913246,58cyclictest0-21swapper/1610:23:228
31469913226,105cyclictest0-21swapper/1611:01:478
31469913223,62cyclictest0-21swapper/1612:06:248
31449913250,62cyclictest0-21swapper/1509:03:527
31449913250,62cyclictest0-21swapper/1509:03:527
31449913228,67cyclictest0-21swapper/1511:37:457
31449913227,64cyclictest0-21swapper/1510:26:427
31449913225,62cyclictest0-21swapper/1508:36:217
31449913225,62cyclictest0-21swapper/1508:36:207
31389913227,68cyclictest0-21swapper/1408:55:176
31389913227,68cyclictest0-21swapper/1408:55:176
31249913243,58cyclictest0-21swapper/1208:21:084
31249913230,71cyclictest0-21swapper/1209:15:354
31249913230,71cyclictest0-21swapper/1209:15:354
31249913229,68cyclictest0-21swapper/1207:40:154
31249913227,63cyclictest0-21swapper/1211:06:474
3211991310,87cyclictest0-21swapper/2607:10:1319
31469913148,52cyclictest0-21swapper/1611:53:498
31449913130,73cyclictest0-21swapper/1511:19:517
31449913128,67cyclictest0-21swapper/1510:37:237
31449913127,65cyclictest0-21swapper/1508:55:197
31449913127,65cyclictest0-21swapper/1508:55:197
31389913125,62cyclictest0-21swapper/1412:25:196
31249913130,71cyclictest0-21swapper/1211:02:124
31249913129,63cyclictest0-21swapper/1212:35:144
31249913128,68cyclictest0-21swapper/1207:52:334
31249913126,69cyclictest0-21swapper/1211:48:144
31959913025,104cyclictest12009-21cpuspeed09:45:1517
31959913023,20cyclictest0-21swapper/2412:19:2417
31549913044,55cyclictest0-21swapper/1710:03:139
31469913029,68cyclictest0-21swapper/1608:15:188
31469913027,100cyclictest0-21swapper/1608:33:588
31469913027,100cyclictest0-21swapper/1608:33:588
31449913028,70cyclictest0-21swapper/1512:13:337
31249913031,74cyclictest0-21swapper/1211:44:594
31249913030,70cyclictest0-21swapper/1209:45:174
31249913030,63cyclictest0-21swapper/1210:23:284
31249913029,73cyclictest0-21swapper/1207:31:584
31249913024,59cyclictest0-21swapper/1210:50:334
31549912917,82cyclictest0-21swapper/1710:47:349
31469912954,59cyclictest0-21swapper/1608:04:228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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