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2026-05-04 - 15:39
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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 Mon May 04, 2026 12:49:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1358499341141,3cyclictest191-21ksoftirqd/2912:30:0122
3273912760,269ptp4l0-21swapper/107:08:131
135029926518,242cyclictest151rcu_preempt10:05:352
135269926435,32cyclictest151rcu_preempt12:23:346
74482224216,6sleep60-21swapper/607:05:1228
135269919226,94cyclictest0-21swapper/1412:35:206
13534991797,138cyclictest0-21swapper/1609:11:318
13534991637,113cyclictest0-21swapper/1610:54:178
134579916144,93cyclictest0-21swapper/311:56:0823
13534991557,117cyclictest0-21swapper/1609:00:178
13534991517,117cyclictest0-21swapper/1610:42:058
134579915148,89cyclictest0-21swapper/308:59:2523
134579915132,118cyclictest0-21swapper/311:18:2523
13534991477,98cyclictest0-21swapper/1612:01:338
134579914630,67cyclictest0-21swapper/310:38:1923
134639914516,115cyclictest7876-21sed10:40:0126
134639914422,95cyclictest28136-21cpuspeed10:10:1226
13554991430,82cyclictest0-21swapper/2110:00:2214
134579914327,75cyclictest0-21swapper/311:23:0023
135349914257,60cyclictest0-21swapper/1612:21:288
135349914249,55cyclictest0-21swapper/1610:45:058
135349914130,64cyclictest0-21swapper/1611:05:218
134639914148,57cyclictest0-21swapper/409:20:2526
134579914123,89cyclictest28037-21kworker/u64:211:00:0123
13579991404,19cyclictest151rcu_preempt10:11:3421
135349914053,57cyclictest0-21swapper/1611:32:378
135349914052,56cyclictest0-21swapper/1611:02:108
135349914051,62cyclictest0-21swapper/1609:16:228
13584991390,83cyclictest0-21swapper/2911:20:1322
135349913954,58cyclictest0-21swapper/1610:13:118
135349913930,67cyclictest0-21swapper/1607:10:158
135349913930,67cyclictest0-21swapper/1607:10:158
135109913932,72cyclictest0-21swapper/1109:44:523
134639913947,66cyclictest0-21swapper/409:41:4726
134639913928,66cyclictest0-21swapper/408:03:5226
134639913928,66cyclictest0-21swapper/408:03:5226
13584991380,77cyclictest0-21swapper/2910:05:5422
135349913860,61cyclictest0-21swapper/1610:26:538
135109913833,73cyclictest0-21swapper/1111:12:573
135109913832,76cyclictest0-21swapper/1108:27:223
135109913832,76cyclictest0-21swapper/1108:27:223
13510991380,81cyclictest0-21swapper/1111:37:313
134639913826,45cyclictest0-21swapper/410:55:0126
135349913744,62cyclictest0-21swapper/1611:49:568
135349913742,60cyclictest0-21swapper/1609:41:558
135349913728,68cyclictest0-21swapper/1612:15:238
134639913728,67cyclictest0-21swapper/410:47:4626
13584991360,83cyclictest0-21swapper/2909:31:4322
135349913631,64cyclictest0-21swapper/1611:18:448
135349913627,65cyclictest0-21swapper/1608:05:168
135349913627,65cyclictest0-21swapper/1608:05:168
134579913621,113cyclictest151rcu_preempt11:30:2923
135719913535,59cyclictest0-21swapper/2607:15:2419
135719913535,59cyclictest0-21swapper/2607:15:2419
13534991357,105cyclictest0-21swapper/1609:30:588
135349913561,64cyclictest0-21swapper/1608:15:258
135349913561,64cyclictest0-21swapper/1608:15:258
135349913531,69cyclictest0-21swapper/1612:08:068
135349913531,67cyclictest0-21swapper/1607:46:348
135349913531,67cyclictest0-21swapper/1607:46:348
135349913530,64cyclictest0-21swapper/1609:59:388
134579913543,60cyclictest0-21swapper/311:53:4123
135349913430,63cyclictest0-21swapper/1609:28:188
135349913430,63cyclictest0-21swapper/1608:20:148
135349913430,63cyclictest0-21swapper/1608:20:148
135349913429,62cyclictest0-21swapper/1607:50:198
135349913429,62cyclictest0-21swapper/1607:50:198
135349913428,63cyclictest0-21swapper/1607:20:238
135349913428,63cyclictest0-21swapper/1607:20:238
135109913444,60cyclictest0-21swapper/1109:45:513
134639913451,63cyclictest0-21swapper/407:40:1326
134639913451,63cyclictest0-21swapper/407:40:1326
134639913430,65cyclictest0-21swapper/412:24:3226
134639913429,66cyclictest0-21swapper/412:34:1826
134639913428,62cyclictest0-21swapper/411:04:0626
135549913327,61cyclictest0-21swapper/2110:10:3114
13554991330,84cyclictest0-21swapper/2110:39:2814
135349913332,69cyclictest0-21swapper/1607:25:118
135349913332,69cyclictest0-21swapper/1607:25:118
135349913329,62cyclictest0-21swapper/1608:45:218
135109913344,56cyclictest0-21swapper/1111:50:233
134639913331,66cyclictest0-21swapper/411:40:1326
134639913329,65cyclictest0-21swapper/407:15:2226
134639913329,65cyclictest0-21swapper/407:15:2226
135549913226,63cyclictest0-21swapper/2107:53:4814
135549913226,63cyclictest0-21swapper/2107:53:4714
135349913232,65cyclictest0-21swapper/1612:25:338
135349913230,61cyclictest0-21swapper/1610:07:208
135349913228,61cyclictest0-21swapper/1607:56:238
135349913228,61cyclictest0-21swapper/1607:56:238
134639913231,69cyclictest0-21swapper/408:11:2926
134639913231,69cyclictest0-21swapper/408:11:2926
134639913230,70cyclictest0-21swapper/410:00:1226
134639913229,63cyclictest0-21swapper/412:12:4726
134639913227,62cyclictest0-21swapper/411:21:4426
135549913147,57cyclictest0-21swapper/2112:07:0714
135549913143,65cyclictest0-21swapper/2109:13:5714
135549913143,57cyclictest0-21swapper/2111:50:0114
135549913141,65cyclictest0-21swapper/2112:23:2514
135349913156,62cyclictest0-21swapper/1608:10:028
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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