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2026-05-21 - 04:40
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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 Thu May 21, 2026 00:49:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913240,317ptp4l0-21swapper/119:06:411
45609923236,1cyclictest151rcu_preempt00:30:5618
4587991814,137cyclictest151rcu_preempt19:54:1022
4587991671,162cyclictest151rcu_preempt23:52:3122
44559916456,107cyclictest0-21swapper/921:25:1231
44559916456,107cyclictest0-21swapper/921:25:1131
44019916119,89cyclictest0-21swapper/122:45:011
45879915852,58cyclictest151rcu_preempt22:47:4922
4488991539,143cyclictest0-21swapper/1422:58:086
45459915253,63cyclictest0-21swapper/2320:55:2316
4488991528,131cyclictest0-21swapper/1423:20:446
4488991519,98cyclictest0-21swapper/1421:28:306
4488991519,98cyclictest0-21swapper/1421:28:306
45459915042,86cyclictest0-21swapper/2322:26:2216
4488991508,141cyclictest29018-21taskset00:06:576
444799150148,1cyclictest151rcu_preempt22:34:2730
444799150148,1cyclictest151rcu_preempt22:34:2730
4407991490,87cyclictest0-21swapper/223:22:0712
45459914857,46cyclictest0-21swapper/2322:45:2816
44019914819,14cyclictest0-21swapper/121:20:481
44019914819,14cyclictest0-21swapper/121:20:471
44019914719,76cyclictest0-21swapper/123:40:161
44559914646,62cyclictest0-21swapper/923:07:1631
4545991430,83cyclictest0-21swapper/2322:10:2016
4545991430,83cyclictest0-21swapper/2322:10:1916
44559914331,110cyclictest0-21swapper/900:27:5831
44999914250,60cyclictest0-21swapper/1619:45:128
4488991428,132cyclictest0-21swapper/1422:35:176
4455991410,84cyclictest949-21cat23:25:1831
44999913929,108cyclictest0-21swapper/1621:20:028
44999913929,108cyclictest0-21swapper/1621:20:018
44019913919,80cyclictest0-21swapper/122:06:281
44019913919,80cyclictest0-21swapper/122:06:271
45459913727,109cyclictest0-21swapper/2321:55:2016
45459913727,109cyclictest0-21swapper/2321:55:1916
44019913719,80cyclictest0-21swapper/122:51:061
45789913520,101cyclictest0-21swapper/2819:40:1921
44559913522,25cyclictest0-21swapper/922:39:2831
4447991340,79cyclictest0-21swapper/800:17:0430
45459913325,83cyclictest0-21swapper/2323:08:2816
44999913347,51cyclictest0-21swapper/1621:05:228
44999913347,51cyclictest0-21swapper/1621:05:228
44479913346,52cyclictest0-21swapper/800:03:4230
44309913315,113cyclictest0-21swapper/523:50:5027
45459913224,72cyclictest0-21swapper/2323:39:3516
4488991328,108cyclictest0-21swapper/1420:34:006
44479913233,98cyclictest0-21swapper/820:00:0130
44309913215,94cyclictest0-21swapper/521:30:2927
44309913215,94cyclictest0-21swapper/521:30:2927
44309913215,76cyclictest0-21swapper/500:07:3627
44019913217,88cyclictest0-21swapper/121:45:491
44019913217,88cyclictest0-21swapper/121:45:481
44999913123,66cyclictest0-21swapper/1622:47:048
4488991319,75cyclictest0-21swapper/1423:53:506
44559913137,50cyclictest0-21swapper/923:39:2031
44559913131,47cyclictest0-21swapper/919:30:1831
44309913115,105cyclictest0-21swapper/522:25:1827
44019913118,87cyclictest0-21swapper/100:15:011
45789913055,60cyclictest0-21swapper/2800:24:4121
44479913031,83cyclictest0-21swapper/823:40:1430
44019913044,57cyclictest0-21swapper/100:00:211
45879912947,54cyclictest0-21swapper/2921:12:1122
45879912947,54cyclictest0-21swapper/2921:12:1022
45789912942,51cyclictest0-21swapper/2820:54:5221
45789912927,65cyclictest0-21swapper/2823:42:2621
45459912922,89cyclictest0-21swapper/2322:58:5716
4488991298,103cyclictest12709-21taskset20:55:376
44479912929,99cyclictest0-21swapper/820:40:2430
44309912916,112cyclictest0-21swapper/521:50:1727
44309912916,112cyclictest0-21swapper/521:50:1627
4430991290,85cyclictest0-21swapper/523:07:1227
45789912827,66cyclictest0-21swapper/2821:44:0221
44999912846,50cyclictest0-21swapper/1619:12:358
44479912829,98cyclictest0-21swapper/822:10:2430
44479912829,98cyclictest0-21swapper/822:10:2430
44479912829,81cyclictest0-21swapper/820:10:1230
44019912841,62cyclictest0-21swapper/122:21:301
44019912841,62cyclictest0-21swapper/122:21:291
44019912826,67cyclictest0-21swapper/100:15:191
45789912753,56cyclictest0-21swapper/2823:04:1921
45789912750,67cyclictest0-21swapper/2800:02:4121
45789912743,54cyclictest0-21swapper/2823:26:2021
4488991272,71cyclictest0-21swapper/1419:28:196
44479912729,97cyclictest0-21swapper/823:50:1730
44019912774,52cyclictest22-21ksoftirqd/100:38:331
44019912751,60cyclictest0-21swapper/123:38:431
44019912738,57cyclictest0-21swapper/100:09:091
45879912645,58cyclictest0-21swapper/2900:04:1522
45789912636,59cyclictest0-21swapper/2800:30:1421
4488991268,116cyclictest0-21swapper/1423:14:506
44559912646,54cyclictest0-21swapper/922:58:3131
44019912653,61cyclictest0-21swapper/119:33:391
44019912642,58cyclictest0-21swapper/122:11:021
44019912642,58cyclictest0-21swapper/122:11:011
44019912634,63cyclictest0-21swapper/123:13:491
44019912623,63cyclictest0-21swapper/121:43:131
45879912541,59cyclictest0-21swapper/2919:45:2222
45789912526,67cyclictest0-21swapper/2823:21:1721
45459912541,60cyclictest0-21swapper/2319:55:0716
44999912526,58cyclictest0-21swapper/1623:27:308
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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