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2026-03-15 - 22:49
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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 Sun Mar 15, 2026 12:49:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62219926467,1cyclictest151rcu_preempt11:41:390
330891215206,6phc2sys0-21swapper/207:05:2212
63979919027,92cyclictest0-21swapper/2809:25:2321
63979919027,92cyclictest0-21swapper/2809:25:2221
3273911670,158ptp4l0-21swapper/107:06:231
64019915213,138cyclictest0-21swapper/2910:40:2422
64019915113,137cyclictest0-21swapper/2910:35:2222
64019915113,126cyclictest0-21swapper/2909:00:1422
64019915113,126cyclictest0-21swapper/2909:00:1422
64019915013,101cyclictest0-21swapper/2911:11:5622
64019914913,84cyclictest0-21swapper/2910:33:2722
64019914913,109cyclictest0-21swapper/2911:55:1322
64019914113,94cyclictest0-21swapper/2912:07:1822
6401991390,89cyclictest0-21swapper/2908:35:2022
63239913853,58cyclictest0-21swapper/1710:35:559
63239913850,59cyclictest0-21swapper/1710:20:259
63239913840,66cyclictest0-21swapper/1709:24:029
63239913840,66cyclictest0-21swapper/1709:24:029
63239913652,60cyclictest0-21swapper/1709:10:159
63239913652,60cyclictest0-21swapper/1709:10:149
64019913513,88cyclictest0-21swapper/2910:21:4122
63779913555,41cyclictest12603-21taskset12:18:5718
6377991350,85cyclictest0-21swapper/2509:24:5818
6377991350,85cyclictest0-21swapper/2509:24:5818
63379913530,70cyclictest0-21swapper/1911:30:1311
63239913549,61cyclictest0-21swapper/1711:25:569
63239913526,63cyclictest0-21swapper/1712:22:059
63239913455,55cyclictest0-21swapper/1711:13:529
64149913327,64cyclictest0-21swapper/3108:25:1325
63239913334,68cyclictest0-21swapper/1710:16:289
63239913328,67cyclictest0-21swapper/1709:55:189
63239913328,67cyclictest0-21swapper/1709:55:189
63239913328,66cyclictest0-21swapper/1709:15:139
63239913328,66cyclictest0-21swapper/1709:15:139
63239913327,69cyclictest0-21swapper/1709:51:019
63239913327,69cyclictest0-21swapper/1709:51:019
63239913240,58cyclictest0-21swapper/1708:14:509
63239913230,67cyclictest0-21swapper/1707:27:179
63239913228,67cyclictest0-21swapper/1710:31:399
63239913228,63cyclictest0-21swapper/1707:15:159
63239913227,71cyclictest0-21swapper/1707:56:409
63239913161,46cyclictest0-21swapper/1709:48:529
63239913161,46cyclictest0-21swapper/1709:48:529
63239913144,58cyclictest0-21swapper/1712:26:329
63239913131,74cyclictest0-21swapper/1710:46:209
63239913131,68cyclictest0-21swapper/1711:47:329
63239913130,73cyclictest0-21swapper/1708:15:229
63239913129,72cyclictest0-21swapper/1711:18:089
63239913128,69cyclictest0-21swapper/1711:06:559
6363991300,79cyclictest0-21swapper/2311:45:2316
63239913048,59cyclictest0-21swapper/1712:15:209
63239913045,64cyclictest0-21swapper/1707:20:209
63239913038,66cyclictest0-21swapper/1708:39:259
63239913029,71cyclictest0-21swapper/1712:04:079
63239913029,71cyclictest0-21swapper/1710:41:499
63239913029,68cyclictest0-21swapper/1710:01:119
63239913029,68cyclictest0-21swapper/1710:01:119
63239913028,72cyclictest0-21swapper/1711:38:599
63239913028,68cyclictest0-21swapper/1709:06:409
63239913028,68cyclictest0-21swapper/1709:06:409
63239913028,66cyclictest0-21swapper/1708:31:249
63239913027,69cyclictest0-21swapper/1712:05:429
63239913026,70cyclictest0-21swapper/1712:33:309
63239912954,61cyclictest0-21swapper/1711:51:179
63239912930,69cyclictest0-21swapper/1710:26:509
63239912928,71cyclictest0-21swapper/1711:40:039
63239912927,68cyclictest0-21swapper/1711:58:139
63239912927,67cyclictest0-21swapper/1712:39:239
63239912849,67cyclictest0-21swapper/1707:48:399
63239912846,66cyclictest0-21swapper/1707:41:419
63239912827,67cyclictest0-21swapper/1712:10:319
63239912827,67cyclictest0-21swapper/1709:25:549
63239912827,67cyclictest0-21swapper/1709:25:549
63239912827,65cyclictest0-21swapper/1708:05:149
63239912825,66cyclictest0-21swapper/1708:42:369
63239912824,60cyclictest0-21swapper/1707:10:439
63239912822,68cyclictest0-21swapper/1710:13:179
63239912822,68cyclictest0-21swapper/1710:13:169
64019912713,79cyclictest0-21swapper/2907:15:1322
63239912731,76cyclictest0-21swapper/1709:34:599
63239912731,76cyclictest0-21swapper/1709:34:599
63239912730,74cyclictest0-21swapper/1709:41:579
63239912730,74cyclictest0-21swapper/1709:41:579
63239912729,73cyclictest0-21swapper/1708:50:269
63239912728,66cyclictest0-21swapper/1708:00:259
63239912727,65cyclictest0-21swapper/1710:57:509
64149912630,56cyclictest0-21swapper/3109:03:0925
64149912630,56cyclictest0-21swapper/3109:03:0925
64019912613,21cyclictest0-21swapper/2909:57:0722
64019912613,21cyclictest0-21swapper/2909:57:0722
63239912632,69cyclictest0-21swapper/1708:58:389
63239912627,64cyclictest0-21swapper/1711:20:499
63239912528,69cyclictest0-21swapper/1709:38:139
63239912528,69cyclictest0-21swapper/1709:38:129
63239912526,65cyclictest0-21swapper/1710:54:059
6329991240,78cyclictest0-21swapper/1809:20:2010
6329991240,78cyclictest0-21swapper/1809:20:1910
63239912428,72cyclictest0-21swapper/1708:27:399
63239912427,64cyclictest0-21swapper/1707:31:019
6317991246,42cyclictest0-21swapper/1607:40:578
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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