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2025-11-21 - 06:21
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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 Fri Nov 21, 2025 00:49:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482913070,299ptp4l0-21swapper/119:07:291
2997599299101,1cyclictest151rcu_preempt22:35:490
284852244237,6sleep220-21swapper/2219:06:2515
329891187177,7phc2sys0-21swapper/219:05:2012
300119915413,87cyclictest0-21swapper/623:32:0928
301509915011,97cyclictest0-21swapper/3023:39:4524
300119915012,100cyclictest0-21swapper/623:40:0028
30105991491,109cyclictest0-21swapper/2321:45:2316
301059914826,122cyclictest0-21swapper/2321:32:3516
300119914812,116cyclictest0-21swapper/623:02:1528
301109914721,28cyclictest0-21swapper/2423:45:4317
30124991460,87cyclictest0-21swapper/2600:12:2419
30105991441,107cyclictest0-21swapper/2323:45:3916
30093991440,84cyclictest0-21swapper/2120:00:0514
30150991435,82cyclictest0-21swapper/3023:55:2224
30124991430,82cyclictest0-21swapper/2600:28:2819
30110991430,86cyclictest0-21swapper/2421:45:1317
30110991430,85cyclictest0-21swapper/2422:25:5017
300479914223,108cyclictest0-21swapper/1220:10:234
300479914223,108cyclictest0-21swapper/1220:10:224
30146991410,83cyclictest0-21swapper/2921:17:1122
30146991410,83cyclictest0-21swapper/2921:17:1022
30124991410,80cyclictest0-21swapper/2622:37:4819
30110991410,85cyclictest0-21swapper/2422:55:1517
300479914128,41cyclictest0-21swapper/1200:02:244
30150991400,86cyclictest0-21swapper/3023:42:3424
30124991400,87cyclictest0-21swapper/2623:19:3019
30124991400,86cyclictest0-21swapper/2600:39:0919
30124991400,82cyclictest0-21swapper/2620:27:5819
30124991400,82cyclictest0-21swapper/2620:27:5719
300479914024,43cyclictest0-21swapper/1221:38:324
30110991390,84cyclictest0-21swapper/2419:10:1217
30110991390,81cyclictest0-21swapper/2422:47:4217
300309913962,1cyclictest0-21swapper/922:24:4231
301249913831,65cyclictest0-21swapper/2622:05:1319
301249913827,67cyclictest0-21swapper/2623:35:0019
301109913845,62cyclictest0-21swapper/2421:50:1617
30110991380,79cyclictest0-21swapper/2400:16:5717
30074991380,137cyclictest905-21diskstats19:10:169
30124991370,81cyclictest0-21swapper/2620:16:4419
30124991370,81cyclictest0-21swapper/2620:16:4419
301109913750,59cyclictest0-21swapper/2421:26:3117
301109913750,59cyclictest0-21swapper/2421:26:3017
301109913728,68cyclictest0-21swapper/2423:02:1217
30093991370,85cyclictest0-21swapper/2121:35:4414
301249913632,69cyclictest0-21swapper/2620:10:2019
301249913632,69cyclictest0-21swapper/2620:10:1919
301249913631,69cyclictest0-21swapper/2621:06:5819
301249913631,69cyclictest0-21swapper/2621:06:5719
30124991360,81cyclictest0-21swapper/2621:16:3619
30124991360,81cyclictest0-21swapper/2621:16:3519
30124991360,78cyclictest0-21swapper/2622:45:1819
301059913645,54cyclictest0-21swapper/2319:25:5616
300479913621,82cyclictest0-21swapper/1220:40:044
300479913621,82cyclictest0-21swapper/1220:40:044
300479913619,92cyclictest18707-21diskmemload23:05:594
300119913645,51cyclictest0-21swapper/621:02:2228
300119913645,51cyclictest0-21swapper/621:02:2128
30011991360,82cyclictest0-21swapper/623:09:0128
30124991350,78cyclictest0-21swapper/2622:20:4219
30124991350,78cyclictest0-21swapper/2620:50:2519
30124991350,78cyclictest0-21swapper/2620:50:2419
301109913546,57cyclictest0-21swapper/2419:20:2517
301109913529,70cyclictest0-21swapper/2421:42:0117
301109913529,64cyclictest0-21swapper/2400:25:0117
301109913528,70cyclictest0-21swapper/2420:25:2017
301109913528,70cyclictest0-21swapper/2420:25:2017
301109913526,65cyclictest0-21swapper/2422:10:0217
301109913523,72cyclictest0-21swapper/2422:18:3417
30110991350,80cyclictest0-21swapper/2421:14:1617
300119913558,56cyclictest0-21swapper/619:25:0628
301249913428,62cyclictest0-21swapper/2622:18:0219
30124991340,78cyclictest0-21swapper/2622:11:0519
30124991340,77cyclictest0-21swapper/2622:58:0719
301109913429,69cyclictest0-21swapper/2419:40:1317
301109913429,68cyclictest0-21swapper/2423:12:1917
301109913426,63cyclictest0-21swapper/2421:56:4117
30110991340,82cyclictest0-21swapper/2400:25:1417
300479913425,37cyclictest0-21swapper/1222:45:254
300479913418,43cyclictest0-21swapper/1221:07:364
300479913418,43cyclictest0-21swapper/1221:07:354
300119913434,64cyclictest0-21swapper/600:16:2128
300119913433,67cyclictest0-21swapper/623:10:2328
300119913430,70cyclictest0-21swapper/600:12:1528
30124991330,81cyclictest0-21swapper/2623:26:2819
30124991330,77cyclictest0-21swapper/2621:35:1619
301109913330,102cyclictest0-21swapper/2421:15:1717
301109913330,102cyclictest0-21swapper/2421:15:1717
301109913328,73cyclictest0-21swapper/2419:35:2517
301109913328,64cyclictest0-21swapper/2400:39:5917
30074991333,128cyclictest0-21swapper/1721:11:059
30074991333,128cyclictest0-21swapper/1700:06:559
30074991333,118cyclictest0-21swapper/1723:50:239
300479913349,54cyclictest0-21swapper/1222:11:274
300479913348,55cyclictest0-21swapper/1200:09:504
300479913326,64cyclictest0-21swapper/1222:35:154
300119913330,66cyclictest0-21swapper/622:05:5728
301249913224,64cyclictest0-21swapper/2622:30:2119
30124991320,78cyclictest0-21swapper/2600:31:0719
301109913233,75cyclictest0-21swapper/2423:50:1717
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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