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2026-06-26 - 22:34
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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 rackdslot0.osadl.org (updated Fri Jun 26, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32274993129,0cyclictest0-21swapper/111:01:111
32274993028,2cyclictest0-21swapper/110:07:451
32274992927,2cyclictest0-21swapper/110:11:441
32274992919,10cyclictest0-21swapper/110:44:271
32274992827,0cyclictest0-21swapper/110:18:331
32274992818,0cyclictest0-21swapper/109:14:111
32275992710,16cyclictest3987-21H222:10:212
32274992718,9cyclictest21-21ksoftirqd/109:05:551
32275992610,15cyclictest28-21ksoftirqd/209:12:542
32274992617,0cyclictest0-21swapper/108:50:551
32274992616,10cyclictest0-21swapper/111:15:451
32274992516,9cyclictest0-21swapper/108:12:271
3227499250,20cyclictest21545-21fschecks_time11:35:141
32274992415,9cyclictest21-21ksoftirqd/109:42:431
32274992415,9cyclictest0-21swapper/109:52:381
32274992415,0cyclictest0-21swapper/108:42:431
3227399242,21cyclictest532-21chrt07:10:130
32273992422,1cyclictest3660-21cut09:10:000
3227399240,5cyclictest29428-21uname08:00:170
3227599236,11cyclictest0-21swapper/211:08:532
32274992314,0cyclictest0-21swapper/109:26:471
32273992314,7cyclictest13871-21python312:20:000
32273992313,9cyclictest0-21swapper/008:52:370
32273992313,5cyclictest0-21swapper/008:14:240
3227399230,22cyclictest28306-21fschecks_count08:55:150
3227399230,22cyclictest22987-21idleruntime08:45:170
3227399230,21cyclictest0-21swapper/009:05:010
3227499227,15cyclictest0-21swapper/107:14:091
32274992210,11cyclictest0-21swapper/111:55:011
32273992214,7cyclictest30049-21nfsd409:55:180
32273992214,7cyclictest17190-21apache_volume07:40:120
32273992214,7cyclictest17190-21apache_volume07:40:120
32273992214,4cyclictest0-21swapper/009:51:120
32273992213,4cyclictest0-21swapper/012:10:210
32273992212,6cyclictest0-21swapper/010:35:540
32273992210,5cyclictest546-21ntpq10:00:190
3227399220,2cyclictest5672-21ntpq11:05:180
3227399220,2cyclictest22922-21sshd09:44:350
3227399220,2cyclictest10946-21grep09:20:170
3227399220,21cyclictest15634-21ntpq07:35:180
3227399220,21cyclictest0-21swapper/010:27:150
3227399220,21cyclictest0-21swapper/009:25:220
3227399220,1cyclictest32253-21ps10:55:190
3227399220,1cyclictest15822-21netstat12:20:180
3227399220,17cyclictest20041-21sessionclean09:39:000
3227399220,16cyclictest21303-21cat11:35:140
3227399220,16cyclictest19741-21sensors11:30:220
3227599212,18cyclictest0-21swapper/210:42:512
32273992114,6cyclictest5763-21expr12:05:140
32273992114,6cyclictest3831-21mailstats10:05:200
32273992114,6cyclictest0-21swapper/011:00:180
32273992114,6cyclictest0-21swapper/008:09:570
32273992113,7cyclictest13108-21expr11:20:130
3227399211,1cyclictest0-21swapper/011:45:180
3227399210,20cyclictest3991-21H222:10:210
3227399210,20cyclictest313132sleep011:52:390
3227399210,20cyclictest0-21swapper/011:55:140
3227399210,20cyclictest0-21swapper/010:44:290
3227399210,20cyclictest0-21swapper/009:30:310
3227399210,20cyclictest0-21swapper/008:37:490
3227399210,20cyclictest0-21swapper/008:30:220
3227399210,1cyclictest3699-21ls07:15:180
3227399210,1cyclictest0-21swapper/012:40:000
3227399210,1cyclictest0-21swapper/010:45:140
3227399210,1cyclictest0-21swapper/007:45:220
3227399210,1cyclictest0-21swapper/007:25:170
3227399210,17cyclictest3991-21H222:10:210
3227399210,16cyclictest10293-21perf10:20:000
3227399210,15cyclictest17961-21grep12:25:140
3227399210,15cyclictest16578-21apache_accesses10:30:090
32275992015,4cyclictest31589-21grep09:00:172
32274992014,5cyclictest870-21systemd-logind10:01:521
32274992014,3cyclictest0-21swapper/111:45:181
3227399202,17cyclictest3976-21H222:10:210
32273992014,5cyclictest0-21swapper/010:20:490
32273992013,6cyclictest0-21swapper/008:40:120
3227399200,2cyclictest5304-21grep10:10:130
3227399200,1cyclictest7624-21sendmail_mailqu07:20:210
3227399200,1cyclictest23341-21http_loadtime07:50:150
3227399200,19cyclictest0-21swapper/012:30:110
3227399200,19cyclictest0-21swapper/012:03:170
3227399200,19cyclictest0-21swapper/011:15:160
3227399200,19cyclictest0-21swapper/011:10:350
3227399200,19cyclictest0-21swapper/009:45:040
3227399200,19cyclictest0-21swapper/009:10:160
3227399200,14cyclictest0-21swapper/011:26:100
3227399200,14cyclictest0-21swapper/008:15:110
3227399200,14cyclictest0-21swapper/007:30:180
3227399200,0cyclictest0-21swapper/010:50:040
3227599192,16cyclictest20046-21cpuspeed_turbos07:45:152
32275991917,1cyclictest28-21ksoftirqd/207:11:122
32275991916,2cyclictest27937-21expr10:50:132
32275991914,2cyclictest3976-21H222:10:212
3227599190,18cyclictest0-21swapper/211:43:202
3227599190,16cyclictest4035-21H222:10:212
3227599190,16cyclictest3976-21H222:10:212
3227499194,1cyclictest0-21swapper/111:29:091
3227499193,15cyclictest21-21ksoftirqd/112:14:251
3227499192,2cyclictest3976-21H222:10:211
3227499192,2cyclictest15088-21nfsd408:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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