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2026-09-03 - 23:06
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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 rackdslot1.osadl.org (updated Thu Sep 03, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2574499820,79cyclictest11412-21cat10:05:262
2574499820,79cyclictest11412-21cat10:05:262
25744997713,62cyclictest0-21swapper/209:40:292
2574499707,61cyclictest0-21swapper/212:30:282
2574499706,61cyclictest0-21swapper/211:10:282
2574499690,22cyclictest5129-21latency_hist09:54:592
75542680,4sleep00-21swapper/011:10:000
2574499670,29cyclictest28246-21chrt10:44:192
2574499670,27cyclictest25090-21phc2sys10:35:242
2574499670,27cyclictest25090-21phc2sys10:35:242
2574499670,22cyclictest6027-21cut09:55:182
296632660,7sleep32574599cyclictest07:15:273
2574499665,25cyclictest32528-21taskset08:31:402
2574499660,28cyclictest28216-21taskset11:54:472
2574499660,24cyclictest19949-21cut10:25:182
2574499651,27cyclictest16492-21chrt11:27:402
2574499650,26cyclictest25499-21taskset09:25:402
92522640,5sleep22574499cyclictest08:50:302
2574499641,26cyclictest32234-21taskset07:22:362
2574499640,29cyclictest25526-21chrt08:18:152
2574499640,26cyclictest18848-21chrt11:33:302
2574499630,26cyclictest16399-21chrt09:07:502
2574499630,26cyclictest11944-21taskset12:26:242
2574499630,26cyclictest11696-21taskset07:48:402
2574499621,27cyclictest27756-21taskset08:22:042
2574499620,26cyclictest4943-21chrt11:02:032
2574499620,26cyclictest4482-21chrt07:32:312
2574499620,26cyclictest2388-21taskset09:46:052
2574499620,26cyclictest23399-21chrt10:34:082
2574499620,26cyclictest16453-21chrt10:19:242
2574499620,26cyclictest11811-21taskset08:58:122
2574499620,25cyclictest16658-21chrt08:00:112
134491620,3ptp4l27978-21cut07:15:011
2574499612,23cyclictest0-21swapper/211:07:122
2574499610,27cyclictest7135-21taskset08:47:082
2574499610,27cyclictest4866-21taskset08:42:302
2574499610,26cyclictest7246-21chrt12:18:022
2574499610,26cyclictest32554-21taskset12:01:142
2574499610,26cyclictest23088-21chrt08:11:292
134491610,4ptp4l0-21swapper/110:35:021
134491610,4ptp4l0-21swapper/110:35:021
2574499600,27cyclictest20802-21taskset08:06:362
2574499600,26cyclictest23522-21taskset09:24:522
2574499600,26cyclictest16658-21chrt12:38:002
134491600,4ptp4l0-21swapper/108:20:211
2574499590,25cyclictest9237-21taskset07:41:342
134491590,4ptp4l0-21swapper/208:36:122
134491590,4ptp4l0-21swapper/012:15:160
2574599588,9cyclictest41-21ksoftirqd/310:34:593
134491580,4ptp4l0-21swapper/109:37:221
134491580,4ptp4l0-21swapper/109:37:221
134491580,4ptp4l0-21swapper/011:45:240
134491580,3ptp4l0-21swapper/109:25:201
134491580,17ptp4l17622-21irqstats10:20:191
25744995712,23cyclictest15770-21sed07:55:242
2574499570,26cyclictest11859-21chrt11:17:252
134491570,4ptp4l0-21swapper/108:45:201
134491570,3ptp4l0-21swapper/111:37:561
25745995616,3cyclictest41-21ksoftirqd/308:55:273
2574499560,25cyclictest21059-21taskset11:36:392
2574499560,21cyclictest26097-21apt-get09:30:152
134491560,4ptp4l0-21swapper/109:13:041
134491560,3ptp4l2827-21chrt10:59:431
134491560,3ptp4l0-21swapper/311:55:163
134491560,3ptp4l0-21swapper/310:07:363
134491560,3ptp4l0-21swapper/310:07:363
134491560,3ptp4l0-21swapper/111:25:161
134491560,3ptp4l0-21swapper/109:09:391
2574499550,26cyclictest13885-21taskset10:10:522
134491550,4ptp4l0-21swapper/311:17:263
134491550,3ptp4l0-21swapper/111:00:251
134491550,3ptp4l0-21swapper/108:00:151
2574499540,18cyclictest12756-21perl11:20:152
134491540,4ptp4l0-21swapper/111:30:021
134491540,4ptp4l0-21swapper/012:31:570
134491540,4ptp4l0-21swapper/008:56:380
134491540,3ptp4l0-21swapper/312:18:413
134491530,4ptp4l0-21swapper/011:10:080
134491520,5ptp4l0-21swapper/312:21:193
134491520,4ptp4l0-21swapper/107:40:171
134491520,4ptp4l0-21swapper/011:44:390
134491520,3ptp4l0-21swapper/108:19:051
134491520,3ptp4l0-21swapper/107:59:041
134491520,3ptp4l0-21swapper/008:09:030
134491520,3ptp4l0-21swapper/007:24:230
124582520,1sleep212461-21cut07:50:162
2574499510,21cyclictest1317-21runrttasks07:14:082
134491510,4ptp4l0-21swapper/108:44:091
134491510,4ptp4l0-21swapper/007:40:040
134491510,3ptp4l0-21swapper/109:50:291
134491510,3ptp4l0-21swapper/010:53:010
134491510,3ptp4l0-21swapper/007:16:200
134491510,11ptp4l0-21swapper/009:20:030
2574499502,22cyclictest0-21swapper/209:13:572
134491500,5ptp4l0-21swapper/007:08:430
134491500,4ptp4l0-21swapper/311:37:413
134491500,4ptp4l0-21swapper/308:11:463
134491500,3ptp4l0-21swapper/112:22:461
134491500,3ptp4l0-21swapper/107:20:231
25745994918,3cyclictest41-21ksoftirqd/307:45:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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