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2025-12-10 - 16:34
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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 Wed Dec 10, 2025 00:49:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
118119928386,1cyclictest151rcu_preempt23:36:4726
118119928386,1cyclictest151rcu_preempt23:36:4726
2482912780,270ptp4l0-21swapper/119:06:141
119379919113,170cyclictest0-21swapper/3123:05:2325
119379918013,123cyclictest0-21swapper/3122:37:0425
119379917913,130cyclictest0-21swapper/3121:39:2125
119379917913,125cyclictest0-21swapper/3121:55:5525
119379916313,35cyclictest0-21swapper/3119:59:2525
119379916313,35cyclictest0-21swapper/3119:59:2525
119379916313,108cyclictest0-21swapper/3121:30:1525
11904991639,102cyclictest0-21swapper/2419:26:3517
11904991639,102cyclictest0-21swapper/2419:26:3517
119379915413,90cyclictest0-21swapper/3123:51:2025
119379915413,90cyclictest0-21swapper/3123:51:2025
118159915139,50cyclictest0-21swapper/521:10:2227
11843991502,128cyclictest0-21swapper/1223:47:364
11843991482,138cyclictest0-21swapper/1200:15:254
11843991482,138cyclictest0-21swapper/1200:15:254
11843991482,137cyclictest0-21swapper/1221:51:394
11843991482,112cyclictest0-21swapper/1223:31:044
11843991482,112cyclictest0-21swapper/1200:32:034
11843991482,112cyclictest0-21swapper/1200:32:034
119379914713,99cyclictest0-21swapper/3123:55:3825
11843991472,126cyclictest0-21swapper/1222:20:134
11843991472,113cyclictest0-21swapper/1220:35:134
11843991472,104cyclictest0-21swapper/1200:05:164
11843991472,104cyclictest0-21swapper/1200:05:164
11843991472,100cyclictest0-21swapper/1223:24:074
11843991462,117cyclictest0-21swapper/1222:15:394
11843991452,132cyclictest0-21swapper/1222:10:224
11843991452,105cyclictest0-21swapper/1223:54:014
11843991452,105cyclictest0-21swapper/1223:54:014
11843991452,105cyclictest0-21swapper/1222:41:544
11815991450,81cyclictest0-21swapper/520:55:2327
11843991432,140cyclictest0-21swapper/1222:45:064
11937991400,86cyclictest0-21swapper/3123:27:4925
118199913950,59cyclictest0-21swapper/620:10:1328
119379913813,43cyclictest0-21swapper/3122:42:5725
119149913834,76cyclictest0-21swapper/2623:36:4919
119149913834,76cyclictest0-21swapper/2623:36:4919
119149913834,69cyclictest0-21swapper/2622:18:1719
119149913833,104cyclictest0-21swapper/2622:50:2119
118199913827,66cyclictest0-21swapper/621:28:3028
119149913732,9cyclictest0-21swapper/2623:34:4219
118199913725,66cyclictest0-21swapper/620:20:2328
119149913633,67cyclictest0-21swapper/2623:20:1619
11843991362,95cyclictest0-21swapper/1222:00:124
118199913628,64cyclictest0-21swapper/622:30:1428
119149913431,102cyclictest0-21swapper/2621:41:2419
118199913451,60cyclictest0-21swapper/622:29:4228
118199913437,65cyclictest0-21swapper/623:12:5928
118199913426,64cyclictest0-21swapper/623:45:0528
118199913426,63cyclictest0-21swapper/623:30:0528
119149913336,55cyclictest0-21swapper/2621:50:1519
119149913330,90cyclictest0-21swapper/2623:45:2319
119149913227,79cyclictest0-21swapper/2622:10:4819
119109913213,64cyclictest25131-21taskset21:48:0418
118199913248,64cyclictest0-21swapper/622:01:2228
118199913242,60cyclictest0-21swapper/623:54:0828
118199913242,60cyclictest0-21swapper/623:54:0828
118199913231,63cyclictest0-21swapper/619:40:2828
118199913231,63cyclictest0-21swapper/619:40:2828
118199913230,64cyclictest0-21swapper/620:50:1828
119379913129,66cyclictest0-21swapper/3120:15:2725
118199913136,67cyclictest0-21swapper/621:35:4328
118199913127,63cyclictest0-21swapper/621:15:2528
11843991302,99cyclictest0-21swapper/1221:26:334
118199913046,57cyclictest0-21swapper/621:22:2228
118199913046,52cyclictest0-21swapper/621:40:3228
118199913031,68cyclictest0-21swapper/620:30:0028
119379912943,57cyclictest0-21swapper/3123:49:1325
119149912924,75cyclictest0-21swapper/2621:26:5819
118199912931,64cyclictest0-21swapper/623:40:1528
118199912928,67cyclictest0-21swapper/622:50:0028
118199912928,65cyclictest0-21swapper/620:45:1528
118199912925,60cyclictest0-21swapper/622:10:2828
656421280,3sleep213163-21kworker/2:219:05:1412
119379912845,52cyclictest0-21swapper/3123:36:5525
119379912845,52cyclictest0-21swapper/3123:36:5525
119379912828,65cyclictest0-21swapper/3100:15:2425
119379912828,65cyclictest0-21swapper/3100:15:2425
119379912813,70cyclictest0-21swapper/3122:10:2125
118199912844,54cyclictest0-21swapper/620:55:0728
118199912830,72cyclictest0-21swapper/623:15:4028
118199912829,68cyclictest0-21swapper/623:56:0028
118199912828,66cyclictest0-21swapper/600:05:2228
118199912828,66cyclictest0-21swapper/600:05:2228
119379912729,64cyclictest0-21swapper/3123:23:0225
119379912729,64cyclictest0-21swapper/3100:22:5325
119379912729,64cyclictest0-21swapper/3100:22:5325
119379912728,73cyclictest0-21swapper/3122:56:1725
119379912728,64cyclictest0-21swapper/3122:47:1325
119379912727,63cyclictest0-21swapper/3122:15:4125
119379912724,66cyclictest0-21swapper/3120:20:1625
118199912731,73cyclictest0-21swapper/623:05:1628
119379912629,68cyclictest0-21swapper/3119:12:5625
119379912629,68cyclictest0-21swapper/3119:12:5625
119379912629,62cyclictest0-21swapper/3123:41:3125
119379912628,74cyclictest0-21swapper/3121:53:4725
119379912628,64cyclictest0-21swapper/3123:04:5125
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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