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2026-04-26 - 06:32
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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 100 highest latencies:
System rack6slot0.osadl.org (updated Sun Apr 26, 2026 01:02:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1918499208136,61cyclictest2447-21CPU20
1918299196178,15cyclictest0-21swapper/2500:08:4418
1918299196178,15cyclictest0-21swapper/2500:08:4418
1918299196178,15cyclictest0-21swapper/2500:08:4418
1916799192163,23cyclictest2456-21CPU4
1916799192163,23cyclictest2456-21CPU4
1915799190181,7cyclictest0-21swapper/322:24:1323
1915799190181,7cyclictest0-21swapper/322:24:1223
1918499189169,18cyclictest0-21swapper/2722:14:0620
1918499189169,18cyclictest0-21swapper/2722:14:0620
1918499189169,18cyclictest0-21swapper/2722:14:0620
1916099185142,32cyclictest0-21swapper/622:43:4536
1916099185142,32cyclictest0-21swapper/622:43:4536
1916099185142,32cyclictest0-21swapper/622:43:4536
1915799183174,7cyclictest0-21swapper/321:55:4923
1915799183174,7cyclictest0-21swapper/321:55:4923
1918699182143,36cyclictest0-21swapper/2921:57:0822
1918699182143,36cyclictest0-21swapper/2921:57:0822
1918299182160,10cyclictest0-21swapper/2500:13:3818
1918299182160,10cyclictest0-21swapper/2500:13:3818
1918299182160,10cyclictest0-21swapper/2500:13:3818
19160991821,2cyclictest0-21swapper/620:30:1436
19160991821,2cyclictest0-21swapper/620:30:1436
1916799181175,3cyclictest0-21swapper/1221:29:434
1916799181175,3cyclictest0-21swapper/1221:29:434
1915699180166,12cyclictest0-21swapper/222:03:4612
1915699180166,12cyclictest0-21swapper/222:03:4612
1915699180145,14cyclictest0-21swapper/223:46:4412
1915699180145,14cyclictest0-21swapper/223:46:4312
1915699180145,14cyclictest0-21swapper/223:46:4312
1918499179147,11cyclictest0-21swapper/2721:10:4120
1918499179147,11cyclictest0-21swapper/2721:10:4120
191759917896,64cyclictest37270-21CPU10
191759917896,64cyclictest37270-21CPU10
1915799178172,3cyclictest0-21swapper/323:50:3023
1915799178172,3cyclictest0-21swapper/323:50:3023
1915799178172,3cyclictest0-21swapper/323:50:3023
1915699178169,6cyclictest0-21swapper/219:25:3012
1915699178169,6cyclictest0-21swapper/219:25:2912
1915699178157,12cyclictest171rcu_preempt21:14:2012
1915699178157,12cyclictest171rcu_preempt21:14:1912
1918399177172,3cyclictest0-21swapper/2619:50:1519
1918399177172,3cyclictest0-21swapper/2619:50:1519
1918099177168,2cyclictest0-21swapper/2320:00:2916
1918099177168,2cyclictest0-21swapper/2320:00:2916
1915699176146,28cyclictest0-21swapper/221:47:5612
1915699176146,28cyclictest0-21swapper/221:47:5612
1915699176129,27cyclictest0-21swapper/222:37:2012
1915699176129,27cyclictest0-21swapper/222:37:2012
19186991751,148cyclictest0-21swapper/2919:50:0122
1916799175156,8cyclictest171rcu_preempt21:36:024
1916799175156,8cyclictest171rcu_preempt21:36:024
1915899175171,2cyclictest0-21swapper/422:17:2734
1915899175171,2cyclictest0-21swapper/422:17:2734
1915699175125,20cyclictest0-21swapper/200:10:0912
1915699175125,20cyclictest0-21swapper/200:10:0912
1915699175125,20cyclictest0-21swapper/200:10:0912
1918699174134,38cyclictest0-21swapper/2921:15:2922
1918699174134,38cyclictest0-21swapper/2921:15:2922
1918699174130,40cyclictest0-21swapper/2921:28:2122
1918699174130,40cyclictest0-21swapper/2921:28:2122
1917599174140,23cyclictest0-21swapper/1823:44:0710
1917599174140,23cyclictest0-21swapper/1823:44:0710
1917599174140,23cyclictest0-21swapper/1823:44:0710
1915799174156,14cyclictest3609-21CPU23
1915799174156,14cyclictest3609-21CPU23
1915799174156,14cyclictest3609-21CPU23
1915699174162,10cyclictest0-21swapper/221:56:4512
1915699174162,10cyclictest0-21swapper/221:56:4512
1915699174139,12cyclictest0-21swapper/220:10:1712
1915699174139,12cyclictest0-21swapper/220:10:1712
1915699174123,30cyclictest0-21swapper/200:24:0412
1915699174123,30cyclictest0-21swapper/200:24:0412
1919999173162,8cyclictest2614-21kworker/u82:5+events_unbound21:37:0832
1919999173162,8cyclictest2614-21kworker/u82:5+events_unbound21:37:0832
1916799173160,11cyclictest0-21swapper/1222:12:254
1916799173160,11cyclictest0-21swapper/1222:12:254
1916799173160,11cyclictest0-21swapper/1222:12:254
1915699173168,4cyclictest0-21swapper/223:58:4212
1915699173168,4cyclictest0-21swapper/223:58:4212
1915699173168,4cyclictest0-21swapper/223:58:4212
1915699173149,16cyclictest171rcu_preempt23:24:1112
1915699173149,16cyclictest171rcu_preempt23:24:1112
1915699173149,16cyclictest171rcu_preempt23:24:1112
1915699173140,10cyclictest171rcu_preempt00:36:3212
1915699173140,10cyclictest171rcu_preempt00:36:3212
1915699173125,30cyclictest0-21swapper/200:29:1012
1915699173125,30cyclictest0-21swapper/200:29:1012
1915699173125,30cyclictest0-21swapper/200:29:1012
1919199172165,5cyclictest0-21swapper/3321:43:5327
1919199172165,5cyclictest0-21swapper/3321:43:5327
1918699172125,40cyclictest0-21swapper/2922:24:0222
1918699172125,40cyclictest0-21swapper/2922:24:0222
1918499172141,24cyclictest171rcu_preempt20:05:1920
1918499172141,24cyclictest171rcu_preempt20:05:1920
1916899172167,3cyclictest0-21swapper/1321:42:125
1916899172167,3cyclictest0-21swapper/1321:42:125
1915899172161,9cyclictest0-21swapper/421:28:5534
1915899172161,9cyclictest0-21swapper/421:28:5534
1915699172142,28cyclictest0-21swapper/223:35:3212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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