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2026-04-26 - 10:58
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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 Sun Apr 26, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2143499829,70cyclictest0-21swapper/323:55:243
134491770,5ptp4l22307-21irqstats19:10:201
134491770,5ptp4l22307-21irqstats19:10:201
21434997214,11cyclictest28161-21sshd19:22:073
21434997113,11cyclictest21861-21seq22:36:563
21434996913,13cyclictest5991-21taskset22:04:533
21434996814,11cyclictest5554-21seq20:54:103
21434996814,10cyclictest26500-21seq22:46:353
21434996814,10cyclictest23805-21seq21:31:213
21434996715,10cyclictest26252-21runrttasks21:38:113
21434996714,12cyclictest1169-21seq23:03:483
21434996714,11cyclictest536-21seq20:42:433
21434996714,11cyclictest28533-21seq20:34:543
21434996713,10cyclictest12758-21seq22:18:193
21434996710,11cyclictest23759-21runrttasks20:22:343
21434996614,11cyclictest1639-21seq00:14:533
21434996614,10cyclictest8503-21seq00:28:333
21434996614,10cyclictest16861-21seq20:08:343
21434996613,13cyclictest24272-21taskset23:53:113
21434996613,11cyclictest3011-21seq20:46:043
21434996613,10cyclictest19368-21runrttasks21:24:033
21434996612,12cyclictest7339-21taskset19:47:163
21434996612,12cyclictest7339-21taskset19:47:163
21433996632,7cyclictest33-21ksoftirqd/222:50:162
21431996631,5cyclictest9-21ksoftirqd/022:00:000
2143499656,6cyclictest134491ptp4l19:40:443
21434996514,10cyclictest12185-21taskset21:05:393
21434996513,12cyclictest29040-21taskset00:02:313
21434996513,12cyclictest15439-21taskset22:25:063
21434996513,11cyclictest21222-21taskset20:15:383
21434996511,10cyclictest21586-21runrttasks21:27:563
21434996510,10cyclictest6126-21runrttasks00:22:353
21434996315,10cyclictest18923-21seq20:10:383
21434996313,11cyclictest14613-21taskset20:04:113
21434996213,12cyclictest26122-21seq20:28:243
21434996213,11cyclictest31088-21taskset21:48:203
21434996213,11cyclictest13249-21taskset00:37:543
21434996213,11cyclictest1005-21seq21:53:523
21434996212,11cyclictest7591-21taskset20:55:563
21434996114,12cyclictest2589-21taskset19:35:363
21434996113,11cyclictest19767-21taskset22:34:323
21434996113,11cyclictest16768-21taskset21:15:333
21434996113,10cyclictest14473-21seq21:10:353
2143499609,16cyclictest28764-21taskset22:51:093
21434996014,11cyclictest21861-21taskset23:47:313
21434996014,11cyclictest10466-21seq23:23:553
21434996013,12cyclictest3382-21taskset23:06:463
21434996012,12cyclictest5781-21taskset23:13:013
21431996028,5cyclictest9-21ksoftirqd/022:55:010
134491600,6ptp4l0-21swapper/219:05:192
2143499597,10cyclictest32763-21sshd19:32:103
21434995914,10cyclictest3778-21seq00:17:103
21434995914,10cyclictest31321-21seq22:59:273
21431995911,5cyclictest9-21ksoftirqd/021:10:200
21434995814,11cyclictest30585-21seq20:36:503
21434995814,11cyclictest17416-21seq23:39:433
21434995812,11cyclictest14829-21runrttasks23:31:053
21434995811,11cyclictest26000-21runrttasks19:19:033
21431995831,3cyclictest9-21ksoftirqd/022:55:280
21431995826,7cyclictest9-21ksoftirqd/020:56:110
21431995826,3cyclictest9-21ksoftirqd/023:57:070
21431995826,3cyclictest9-21ksoftirqd/021:04:320
21431995825,3cyclictest9-21ksoftirqd/000:35:100
21431995822,6cyclictest9-21ksoftirqd/022:30:250
134491580,5ptp4l0-21swapper/000:00:050
134491580,4ptp4l0-21swapper/122:35:191
2143499574,16cyclictest13613-21cut22:20:173
21434995710,10cyclictest0-21swapper/300:06:533
2143399573,10cyclictest0-21swapper/200:07:572
21431995724,6cyclictest9-21ksoftirqd/022:04:380
21431995722,5cyclictest9-21ksoftirqd/000:30:150
134491570,4ptp4l0-21swapper/121:10:271
134491570,3ptp4l0-21swapper/219:50:182
134491570,3ptp4l0-21swapper/000:15:260
21434995614,10cyclictest12541-21seq23:26:123
2143399562,6cyclictest33-21ksoftirqd/200:15:012
21431995629,6cyclictest9-21ksoftirqd/000:05:260
134491560,3ptp4l0-21swapper/121:45:151
21433995528,9cyclictest33-21ksoftirqd/200:25:162
2143399552,7cyclictest33-21ksoftirqd/222:10:142
21431995525,2cyclictest9-21ksoftirqd/023:16:020
21431995525,2cyclictest9-21ksoftirqd/022:41:080
21431995521,3cyclictest9-21ksoftirqd/000:20:070
134491550,3ptp4l0-21swapper/221:50:282
134491550,3ptp4l0-21swapper/119:55:251
21434995412,12cyclictest22361-21chrt22:40:083
21434995412,11cyclictest9534-21runrttasks19:51:053
2143399543,6cyclictest27248-21sed21:40:192
2143399540,6cyclictest28566-21idleruntime-cro20:35:012
21431995426,3cyclictest9-21ksoftirqd/019:30:450
21431995421,5cyclictest9-21ksoftirqd/019:20:010
21431995420,3cyclictest9-21ksoftirqd/022:09:200
134491540,4ptp4l0-21swapper/100:25:271
21434995311,11cyclictest11934-21runrttasks19:57:193
21433995323,4cyclictest33-21ksoftirqd/200:15:142
21431995325,3cyclictest9-21ksoftirqd/023:09:210
2143499526,8cyclictest7368-21ntp_states22:05:243
2143399525,9cyclictest33-21ksoftirqd/221:45:262
2143399525,8cyclictest33-21ksoftirqd/222:30:272
2143399524,8cyclictest33-21ksoftirqd/222:25:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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