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2026-07-28 - 10:54
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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 rackdslot3.osadl.org (updated Tue Jul 28, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241872246201,35sleep10-21swapper/119:08:591
139491212168,32phc2sys0-21swapper/319:08:043
241562203170,22sleep20-21swapper/219:08:352
240472203170,22sleep00-21swapper/019:07:080
1874021760,6sleep22456199cyclictest21:10:222
2426728363,11sleep30-21swapper/319:10:023
2455999674,11cyclictest29333-21sort19:20:000
2455999643,10cyclictest17106-21latency_hist23:25:000
24562996329,4cyclictest41-21ksoftirqd/322:35:293
24562996129,10cyclictest41-21ksoftirqd/320:20:003
24562996125,4cyclictest41-21ksoftirqd/300:10:253
2455999614,12cyclictest10352-21grep23:10:140
24562996027,4cyclictest41-21ksoftirqd/300:20:263
2455999603,12cyclictest18391-21cut21:10:190
2455999603,11cyclictest23189-21sed20:14:590
2455999601,17cyclictest0-21swapper/019:50:000
2455999593,12cyclictest207-21systemd-journal21:25:000
2455999593,11cyclictest14823-21sed22:10:180
24562995719,4cyclictest41-21ksoftirqd/322:30:143
2455999573,18cyclictest6705-21latency_hist21:55:000
2455999573,11cyclictest29164-21cut20:25:190
2455999572,18cyclictest4126-21cat19:35:010
2455999572,11cyclictest27555-21sed23:45:190
2455999572,10cyclictest30353-21irqrtprio19:20:180
24562995618,3cyclictest41-21ksoftirqd/321:40:223
24562995617,8cyclictest41-21ksoftirqd/300:05:223
2455999564,10cyclictest8997-21strings20:50:210
2455999562,11cyclictest24122-21cut20:15:190
2455999561,12cyclictest24344-21cut22:30:200
24562995521,3cyclictest41-21ksoftirqd/319:40:273
24562995519,4cyclictest41-21ksoftirqd/319:25:253
24562995517,8cyclictest41-21ksoftirqd/320:50:243
24562995517,7cyclictest41-21ksoftirqd/319:35:263
24562995515,8cyclictest41-21ksoftirqd/321:30:253
2455999553,17cyclictest12925-21cat19:50:250
2455999553,12cyclictest12639-21ls22:05:200
2455999552,12cyclictest28480-21cut22:40:140
2455999552,11cyclictest3030-21sed20:40:000
24562995433,2cyclictest41-21ksoftirqd/320:55:173
24562995421,8cyclictest41-21ksoftirqd/320:25:203
24562995419,3cyclictest41-21ksoftirqd/322:55:303
24562995417,9cyclictest41-21ksoftirqd/319:55:263
24562995417,8cyclictest41-21ksoftirqd/320:00:183
24562995416,9cyclictest41-21ksoftirqd/323:05:243
24562995416,7cyclictest41-21ksoftirqd/321:50:253
24562995415,8cyclictest41-21ksoftirqd/321:20:253
2455999542,10cyclictest7579-21cut19:40:190
2455999541,11cyclictest4596-21switchtime20:40:250
2455999541,10cyclictest6991-21cstates00:10:150
2455999540,9cyclictest0-21swapper/023:30:230
139391540,1ptp4l401ktimersoftd/320:44:283
24562995319,8cyclictest41-21ksoftirqd/300:35:253
24562995318,7cyclictest41-21ksoftirqd/322:05:263
24562995317,8cyclictest41-21ksoftirqd/323:10:293
24562995317,8cyclictest41-21ksoftirqd/320:10:253
24562995316,6cyclictest41-21ksoftirqd/322:10:173
24562995315,7cyclictest41-21ksoftirqd/323:35:293
24562995315,7cyclictest41-21ksoftirqd/322:15:203
2455999532,17cyclictest27018-21grep22:35:220
2455999532,16cyclictest17362-21awk23:25:140
2455999532,12cyclictest11469-21date00:20:010
2455999532,11cyclictest3005-21sed22:55:010
2455999532,11cyclictest26041-21sed23:40:270
2455999532,11cyclictest22866-21cut23:35:200
2455999532,10cyclictest32136-21sed22:45:260
2455999531,16cyclictest407-21latency_hist20:35:000
2456299523,9cyclictest41-21ksoftirqd/300:15:173
24562995219,7cyclictest41-21ksoftirqd/322:20:133
24562995217,8cyclictest41-21ksoftirqd/323:50:243
24562995216,10cyclictest41-21ksoftirqd/320:30:283
24562995214,8cyclictest41-21ksoftirqd/323:15:273
2455999522,12cyclictest19525-21irqrtprio22:20:170
2456299512,3cyclictest121rcu_preempt21:40:003
24562995119,7cyclictest41-21ksoftirqd/321:55:273
24562995117,8cyclictest41-21ksoftirqd/323:45:153
24562995117,8cyclictest41-21ksoftirqd/323:25:273
24562995116,8cyclictest41-21ksoftirqd/323:00:143
24562995113,7cyclictest41-21ksoftirqd/321:15:243
24560995133,9cyclictest25-21ksoftirqd/123:00:001
2455999516,11cyclictest3088-21ps00:00:240
2455999513,9cyclictest13698-21awk00:25:010
2456299506,7cyclictest41-21ksoftirqd/319:55:003
2456299506,2cyclictest41-21ksoftirqd/322:29:593
24562995038,2cyclictest41-21ksoftirqd/323:40:203
24562995022,6cyclictest41-21ksoftirqd/320:45:173
24562995018,8cyclictest41-21ksoftirqd/320:20:213
24562995017,4cyclictest41-21ksoftirqd/321:00:163
24562995017,4cyclictest41-21ksoftirqd/321:00:163
24562995014,7cyclictest41-21ksoftirqd/300:30:173
2455999502,11cyclictest3810-21irqrtprio22:55:210
2455999501,15cyclictest14450-21sshd23:17:190
24562994927,11cyclictest41-21ksoftirqd/322:40:223
24562994915,9cyclictest41-21ksoftirqd/300:00:173
2456299490,2cyclictest121rcu_preempt22:45:133
2456299484,7cyclictest29317-21systemctl19:19:593
2456299483,3cyclictest41-21ksoftirqd/319:35:013
24562994819,6cyclictest41-21ksoftirqd/319:50:003
24562994817,7cyclictest41-21ksoftirqd/321:05:263
24562994817,4cyclictest41-21ksoftirqd/320:05:273
2456099480,4cyclictest30446-21wc22:45:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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