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2026-04-03 - 00:06
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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
Characteristics of the 20 highest latencies:
System rack6slot5.osadl.org (updated Thu Apr 02, 2026 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
479999109265499,5423cyclictest19342-21kworker/0:111:59:280
479999105195512,4965cyclictest13602-21kworker/0:010:10:490
479999100685054,5003cyclictest13602-21kworker/0:009:49:400
479999100525218,4783cyclictest13602-21kworker/0:009:44:070
47999999055279,4614cyclictest23203-21kworker/0:107:53:330
47999998215220,4589cyclictest23203-21kworker/0:107:57:220
47999997285081,4636cyclictest13602-21kworker/0:009:18:190
47999996345142,4480cyclictest23203-21kworker/0:107:38:420
47999993914836,4544cyclictest23203-21kworker/0:108:28:160
47999993874835,4541cyclictest20186-21kworker/0:010:32:260
47999993805032,4345cyclictest23203-21kworker/0:107:13:380
47999993794827,4547cyclictest8982-21kworker/0:209:10:180
47999993024786,4505cyclictest13602-21kworker/0:009:37:570
47999991704778,4340cyclictest10996-21kworker/0:212:26:040
47999991204706,4410cyclictest23203-21kworker/0:108:12:350
47999991184700,4408cyclictest23203-21kworker/0:108:59:090
47999990914671,4408cyclictest12743-21kworker/0:211:18:360
47999990204554,4454cyclictest23203-21kworker/0:107:46:070
47999989654520,4434cyclictest10996-21kworker/0:212:19:320
47999989464617,4324cyclictest10063-21kworker/0:111:07:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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