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2025-12-15 - 12:00
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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 Mon Dec 15, 2025 00:59:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22409992031,185cyclictest0-21swapper/2200:10:1915
22409992031,185cyclictest0-21swapper/2200:10:1915
2240099200176,21cyclictest0-21swapper/1521:44:587
2240099200176,21cyclictest0-21swapper/1521:44:587
2240999197118,76cyclictest2462-21CPU15
2240999197118,76cyclictest2462-21CPU15
2240999197118,76cyclictest2462-21CPU15
2240599195142,41cyclictest3542-21CPU13
2240599195142,41cyclictest3542-21CPU13
2241199194187,5cyclictest0-21swapper/2323:15:1016
2241199194187,5cyclictest0-21swapper/2323:15:1016
2241199194187,5cyclictest0-21swapper/2323:15:1016
2240599194179,9cyclictest171rcu_preempt22:47:4013
2240599194179,9cyclictest171rcu_preempt22:47:4013
2241799188165,12cyclictest0-21swapper/2900:24:5522
2241799188165,12cyclictest0-21swapper/2900:24:5522
2240599188132,20cyclictest0-21swapper/2023:37:5413
2240599188132,20cyclictest0-21swapper/2023:37:5413
2240599188132,20cyclictest0-21swapper/2023:37:5413
2241799186181,4cyclictest0-21swapper/2923:15:4222
2241799186181,4cyclictest0-21swapper/2923:15:4222
2241799186181,4cyclictest0-21swapper/2923:15:4222
2241799186177,5cyclictest4408-21CPU22
2241799186177,5cyclictest4408-21CPU22
2240599186141,26cyclictest0-21swapper/2000:21:3813
2240599186141,26cyclictest0-21swapper/2000:21:3813
22409991851,173cyclictest0-21swapper/2221:50:1915
22409991851,173cyclictest0-21swapper/2221:50:1915
2241799184175,7cyclictest0-21swapper/2922:47:1522
2241799184175,7cyclictest0-21swapper/2922:47:1522
2240599184171,9cyclictest0-21swapper/2022:10:1013
2240599184171,9cyclictest0-21swapper/2022:10:1013
2242099183177,4cyclictest0-21swapper/3221:20:0926
2242099183177,4cyclictest0-21swapper/3221:20:0926
2241799183176,5cyclictest0-21swapper/2919:20:4322
2241799183176,5cyclictest0-21swapper/2919:20:4322
2241799182176,4cyclictest0-21swapper/2921:23:3122
2241799182176,4cyclictest0-21swapper/2921:23:3122
2240599182155,13cyclictest171rcu_preempt23:10:0013
2240599182155,13cyclictest171rcu_preempt23:10:0013
2240599182155,13cyclictest171rcu_preempt23:10:0013
2240099182121,55cyclictest3548-21CPU7
2240099182121,55cyclictest3548-21CPU7
2240099182121,55cyclictest3548-21CPU7
2241799181172,6cyclictest0-21swapper/2921:13:2422
2241799181172,6cyclictest0-21swapper/2921:13:2422
2241799181172,6cyclictest0-21swapper/2921:13:2422
2240999180124,43cyclictest0-21swapper/2200:24:2515
2240999180124,43cyclictest0-21swapper/2200:24:2515
2241799179171,5cyclictest0-21swapper/2922:50:1322
2241799179171,5cyclictest0-21swapper/2922:50:1322
2241799178173,4cyclictest0-21swapper/2900:31:0522
2241799178173,4cyclictest0-21swapper/2900:31:0522
2241799178171,5cyclictest0-21swapper/2923:05:1222
2241799178171,5cyclictest0-21swapper/2923:05:1222
2241799178171,5cyclictest0-21swapper/2923:05:1222
2241799178170,5cyclictest0-21swapper/2922:27:5922
2241799178170,5cyclictest0-21swapper/2922:27:5922
2241799178164,10cyclictest37358-21CPU22
2241799178164,10cyclictest37358-21CPU22
2241799178164,10cyclictest37358-21CPU22
22409991781,84cyclictest0-21swapper/2222:35:1615
22409991781,84cyclictest0-21swapper/2222:35:1615
2240599178147,12cyclictest0-21swapper/2023:57:2213
2240599178147,12cyclictest0-21swapper/2023:57:2213
2240599178147,12cyclictest0-21swapper/2023:57:2213
2240099178138,38cyclictest3298-21if_eno322:40:217
2240099178138,38cyclictest3298-21if_eno322:40:217
2239099178169,6cyclictest0-21swapper/623:12:1836
2239099178169,6cyclictest0-21swapper/623:12:1836
2239099178169,6cyclictest0-21swapper/623:12:1836
2241799177171,4cyclictest0-21swapper/2921:50:5122
2241799177171,4cyclictest0-21swapper/2921:50:5122
2241799177169,7cyclictest0-21swapper/2921:31:2622
2241799177169,7cyclictest0-21swapper/2921:31:2622
2241199177162,13cyclictest0-21swapper/2322:10:1916
2241199177162,13cyclictest0-21swapper/2322:10:1916
2240599177134,26cyclictest0-21swapper/2022:39:0813
2240599177134,26cyclictest0-21swapper/2022:39:0813
2240099177114,51cyclictest0-21swapper/1521:35:207
2240099177114,51cyclictest0-21swapper/1521:35:207
2240099177114,51cyclictest0-21swapper/1521:35:207
224099917692,80cyclictest37354-21CPU15
224099917692,80cyclictest37354-21CPU15
2240599176147,10cyclictest171rcu_preempt19:18:5613
2240599176147,10cyclictest171rcu_preempt19:18:5613
2240599176134,22cyclictest0-21swapper/2023:13:0813
2240599176134,22cyclictest0-21swapper/2023:13:0813
2240599176134,22cyclictest0-21swapper/2023:13:0813
2241799175167,6cyclictest0-21swapper/2922:05:4022
2241799175167,6cyclictest0-21swapper/2922:05:4022
2241199175168,5cyclictest0-21swapper/2322:01:2916
2241199175168,5cyclictest0-21swapper/2322:01:2916
2240599175140,23cyclictest0-21swapper/2000:11:5913
2240599175140,23cyclictest0-21swapper/2000:11:5913
2240599175131,25cyclictest0-21swapper/2021:44:4313
2240599175131,25cyclictest0-21swapper/2021:44:4313
224009917567,100cyclictest0-21swapper/1500:10:167
224009917567,100cyclictest0-21swapper/1500:10:167
2241799174170,3cyclictest0-21swapper/2922:41:4822
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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