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2025-12-18 - 07:57
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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 Dec 18, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21522997735,5cyclictest33-21ksoftirqd/221:50:172
21522997713,62cyclictest0-21swapper/221:10:282
21518997512,61cyclictest28196-21kworker/1:121:11:481
21522997136,5cyclictest33-21ksoftirqd/200:40:002
21518997114,12cyclictest905-21taskset00:14:281
21522996833,6cyclictest33-21ksoftirqd/200:05:002
21518996814,11cyclictest1317-21runrttasks19:32:301
21518996712,10cyclictest574-21seq23:02:191
21518996711,11cyclictest122132sleep123:27:471
21522996632,6cyclictest33-21ksoftirqd/221:20:002
2152299662,35cyclictest0-21swapper/222:00:182
21518996612,16cyclictest7754-21/usr/sbin/munin19:50:241
21518996612,10cyclictest1317-21runrttasks21:28:121
21522996531,5cyclictest33-21ksoftirqd/219:40:172
21522996433,5cyclictest33-21ksoftirqd/220:45:162
21522996433,4cyclictest33-21ksoftirqd/223:40:102
21522996429,6cyclictest33-21ksoftirqd/221:40:172
21522996428,6cyclictest33-21ksoftirqd/220:35:242
21518996414,11cyclictest1317-21runrttasks22:58:501
21518996413,11cyclictest1317-21runrttasks21:55:441
21518996413,11cyclictest1317-21runrttasks20:32:221
21518996412,16cyclictest4764-21mailstats23:10:231
21518996412,11cyclictest1317-21runrttasks21:04:291
21518996411,15cyclictest28801-21cpuspeed_turbos21:45:121
2151799641,25cyclictest1317-21runrttasks20:39:210
21522996332,4cyclictest33-21ksoftirqd/223:25:162
21522996331,5cyclictest33-21ksoftirqd/219:30:272
21522996331,3cyclictest33-21ksoftirqd/220:20:142
21522996328,7cyclictest33-21ksoftirqd/222:05:162
2152299632,33cyclictest0-21swapper/221:20:182
2151899638,17cyclictest1266-21cat00:15:141
21518996313,10cyclictest1317-21runrttasks22:20:071
21518996312,10cyclictest1317-21runrttasks20:07:081
2151799630,23cyclictest14325-21seq21:11:510
21522996232,6cyclictest33-21ksoftirqd/223:15:302
21522996230,7cyclictest33-21ksoftirqd/219:35:202
21522996230,5cyclictest33-21ksoftirqd/219:15:172
21522996229,5cyclictest33-21ksoftirqd/223:25:012
21522996229,5cyclictest33-21ksoftirqd/223:25:012
21522996228,6cyclictest33-21ksoftirqd/220:25:252
21522996228,5cyclictest33-21ksoftirqd/221:55:252
21522996228,5cyclictest33-21ksoftirqd/219:20:142
21522996226,5cyclictest33-21ksoftirqd/223:00:232
21522996222,6cyclictest33-21ksoftirqd/222:30:182
21518996213,10cyclictest1317-21runrttasks20:14:371
21518996212,11cyclictest11827-21seq19:56:251
2151799622,23cyclictest0-21swapper/022:27:460
2151799622,21cyclictest0-21swapper/023:10:470
2151799620,27cyclictest945-21/usr/sbin/munin20:45:130
21522996128,6cyclictest33-21ksoftirqd/221:10:002
21522996128,5cyclictest33-21ksoftirqd/222:45:222
21522996128,5cyclictest33-21ksoftirqd/220:05:192
21522996127,5cyclictest33-21ksoftirqd/220:59:592
21522996122,5cyclictest33-21ksoftirqd/222:15:202
21518996115,16cyclictest2695-21chrt19:37:211
21518996115,11cyclictest5147-21chrt19:44:031
21518996114,17cyclictest1317-21runrttasks23:51:381
21518996113,11cyclictest1317-21runrttasks20:26:251
2151799612,24cyclictest0-21swapper/022:03:590
2151799612,23cyclictest0-21swapper/022:37:450
2151799612,22cyclictest0-21swapper/021:26:040
21522996031,3cyclictest33-21ksoftirqd/221:30:112
21522996030,5cyclictest33-21ksoftirqd/219:50:132
21522996025,6cyclictest33-21ksoftirqd/200:15:252
21522996024,5cyclictest33-21ksoftirqd/221:25:182
21518996012,10cyclictest1317-21runrttasks22:05:341
2151799602,24cyclictest0-21swapper/020:28:350
2151799602,23cyclictest0-21swapper/022:06:520
2151799602,23cyclictest0-21swapper/019:48:030
2151799602,21cyclictest0-21swapper/023:02:160
2152299594,2cyclictest121rcu_preempt00:07:062
21522995926,5cyclictest33-21ksoftirqd/222:25:142
21518995917,11cyclictest12264-21taskset21:09:501
21518995915,16cyclictest21361-21chrt23:47:061
21518995913,11cyclictest11857-21taskset22:15:341
21518995913,10cyclictest1317-21runrttasks00:35:431
21518995912,11cyclictest1317-21runrttasks22:11:121
21518995912,11cyclictest1317-21runrttasks20:03:351
2151799592,23cyclictest0-21swapper/019:30:580
2151799592,22cyclictest0-21swapper/022:21:120
2151799592,22cyclictest0-21swapper/022:19:390
2151799592,22cyclictest0-21swapper/020:40:030
2151799592,22cyclictest0-21swapper/019:11:280
134491590,12ptp4l0-21swapper/319:10:193
21522995826,6cyclictest33-21ksoftirqd/222:10:152
21522995824,4cyclictest33-21ksoftirqd/223:50:252
21522995823,7cyclictest33-21ksoftirqd/200:20:132
21522995823,6cyclictest33-21ksoftirqd/222:55:172
21522995819,5cyclictest33-21ksoftirqd/200:30:222
2151899589,12cyclictest6678-21awk00:25:191
21518995816,16cyclictest28000-21chrt19:20:561
21518995816,11cyclictest9845-21taskset23:21:511
21518995816,11cyclictest9845-21taskset23:21:511
21518995814,15cyclictest2818-21chrt20:49:331
21518995814,12cyclictest30538-21chrt19:28:341
21518995814,10cyclictest23453-21taskset22:41:101
21518995812,10cyclictest1317-21runrttasks00:05:371
2151799582,22cyclictest0-21swapper/019:39:440
2151799582,21cyclictest0-21swapper/021:52:110
2151799582,21cyclictest0-21swapper/000:05:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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