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2026-07-27 - 05:30
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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 Jul 27, 2026 00:49:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891288280,6phc2sys0-21swapper/219:08:2712
256762283275,6sleep280-21swapper/2819:05:1621
3273912630,255ptp4l0-21swapper/119:07:111
29985991953,7cyclictest151rcu_preempt22:12:0712
29985991953,7cyclictest151rcu_preempt22:12:0712
30104991480,88cyclictest0-21swapper/1720:55:249
30104991480,87cyclictest0-21swapper/1700:15:189
30025991450,78cyclictest0-21swapper/721:50:1629
30104991430,86cyclictest0-21swapper/1723:02:059
30104991430,86cyclictest0-21swapper/1723:02:059
30008991430,88cyclictest0-21swapper/520:08:4327
268162141133,6sleep310-21swapper/3119:05:1925
30163991401,87cyclictest0-21swapper/2522:09:1818
30163991401,87cyclictest0-21swapper/2522:09:1818
30163991400,87cyclictest0-21swapper/2500:15:1318
301049914015,98cyclictest29770-21taskset19:31:479
300969914015,77cyclictest151rcu_preempt23:15:158
30008991400,83cyclictest0-21swapper/520:53:4627
299959914032,72cyclictest0-21swapper/323:01:5123
299959914032,72cyclictest0-21swapper/323:01:5123
30163991391,86cyclictest0-21swapper/2521:57:5518
30163991391,86cyclictest0-21swapper/2521:57:5518
300089913855,63cyclictest0-21swapper/521:07:3027
299959913823,57cyclictest0-21swapper/321:30:1123
300259913746,54cyclictest0-21swapper/700:22:0529
300259913651,56cyclictest0-21swapper/700:04:5929
300259913649,57cyclictest0-21swapper/721:24:3829
300089913641,62cyclictest0-21swapper/521:20:5127
300089913639,61cyclictest0-21swapper/521:18:4327
30008991360,84cyclictest0-21swapper/523:48:5527
30025991350,82cyclictest0-21swapper/721:29:2729
30025991350,79cyclictest0-21swapper/720:35:1329
300089913545,57cyclictest0-21swapper/521:33:5727
300089913526,67cyclictest0-21swapper/519:44:0827
299959913534,58cyclictest0-21swapper/321:50:1123
301049913447,62cyclictest0-21swapper/1722:42:189
301049913447,62cyclictest0-21swapper/1722:42:189
300089913428,67cyclictest0-21swapper/519:35:0327
299959913446,58cyclictest0-21swapper/300:39:0623
299959913445,60cyclictest0-21swapper/323:40:5223
299959913425,60cyclictest0-21swapper/322:11:0423
299959913425,60cyclictest0-21swapper/322:11:0423
301049913339,70cyclictest0-21swapper/1723:37:539
300259913351,61cyclictest0-21swapper/723:08:0329
300259913348,60cyclictest0-21swapper/722:13:4829
300259913348,60cyclictest0-21swapper/722:13:4829
300259913347,57cyclictest0-21swapper/722:36:0129
300259913347,57cyclictest0-21swapper/722:36:0129
300089913328,68cyclictest0-21swapper/523:44:3827
301049913246,56cyclictest0-21swapper/1700:09:579
301049913226,61cyclictest0-21swapper/1723:25:049
300259913229,65cyclictest0-21swapper/723:50:1529
300259913228,66cyclictest0-21swapper/722:46:4229
300259913228,66cyclictest0-21swapper/722:46:4229
300089913251,58cyclictest0-21swapper/522:21:1527
300089913251,58cyclictest0-21swapper/522:21:1527
300089913232,65cyclictest0-21swapper/523:23:3127
300089913229,66cyclictest0-21swapper/519:55:2127
299959913224,65cyclictest0-21swapper/322:24:1123
299959913224,65cyclictest0-21swapper/322:24:1123
301049913138,57cyclictest0-21swapper/1722:05:579
301049913138,57cyclictest0-21swapper/1722:05:579
300259913152,63cyclictest0-21swapper/723:40:2429
300259913129,69cyclictest0-21swapper/721:36:5629
300259913129,66cyclictest0-21swapper/723:55:5429
300259913128,66cyclictest0-21swapper/700:07:2229
300259913126,71cyclictest0-21swapper/722:41:2729
300259913126,71cyclictest0-21swapper/722:41:2729
300089913148,56cyclictest0-21swapper/500:17:4627
300089913131,76cyclictest0-21swapper/522:57:0427
300089913131,76cyclictest0-21swapper/522:57:0427
300089913131,72cyclictest0-21swapper/500:24:1127
300089913129,71cyclictest0-21swapper/521:50:4727
300089913126,64cyclictest0-21swapper/521:55:0427
300089913126,64cyclictest0-21swapper/521:55:0427
299959913155,56cyclictest0-21swapper/322:50:0523
299959913155,56cyclictest0-21swapper/322:50:0523
299959913149,60cyclictest0-21swapper/323:57:2623
299959913149,58cyclictest0-21swapper/322:31:5523
299959913149,58cyclictest0-21swapper/322:31:5523
299959913127,66cyclictest0-21swapper/322:04:0723
299959913127,66cyclictest0-21swapper/322:04:0723
299959913125,64cyclictest0-21swapper/322:07:1923
299959913125,64cyclictest0-21swapper/322:07:1923
299959913119,61cyclictest0-21swapper/300:30:3423
301049913033,61cyclictest0-21swapper/1700:29:129
300259913053,58cyclictest0-21swapper/721:44:5729
300259913032,75cyclictest0-21swapper/719:35:2129
300259913028,68cyclictest0-21swapper/720:45:4629
300259913028,65cyclictest0-21swapper/723:31:5029
300259913027,65cyclictest0-21swapper/722:05:1529
300259913027,65cyclictest0-21swapper/722:05:1529
300089913036,62cyclictest0-21swapper/521:29:4127
300089913027,66cyclictest0-21swapper/519:30:4727
300089913024,61cyclictest0-21swapper/522:35:4127
300089913024,61cyclictest0-21swapper/522:35:4127
300089913023,64cyclictest0-21swapper/523:50:3127
30008991300,80cyclictest0-21swapper/500:10:1727
299959913051,61cyclictest0-21swapper/323:39:1523
299959913050,58cyclictest0-21swapper/321:20:3823
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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