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2026-03-19 - 17:00
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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 all highest latencies:
System rackeslot2.osadl.org (updated Thu Mar 19, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232032821010,1sleep00-21swapper/009:20:010
24605692780,2sleep20-21swapper/210:38:392
2649091351,7phc2sys0-21swapper/311:00:013
2154192992615,10cyclictest2544410-21kthreadcore11:26:340
2154192992415,5cyclictest2341655-21kthreadcore09:31:330
2154192992414,5cyclictest2555953-21switchtime11:31:380
2154193992319,3cyclictest2180630-21idleruntime-cro07:30:001
2154192992313,5cyclictest2311287-21kworker/0:2+events09:36:320
2154192992311,8cyclictest2404270-21kthreadcore10:06:340
2154192992311,8cyclictest2364375-21apt-key09:45:010
2154192992310,9cyclictest2659642-21kthreadcore12:31:330
215419299229,8cyclictest0-21swapper/012:21:330
215419299227,12cyclictest1426-21gdbus08:30:010
2154192992216,5cyclictest0-21swapper/010:30:020
215419499216,9cyclictest0-21swapper/209:50:012
215419499215,10cyclictest0-21swapper/207:50:012
2154193992113,3cyclictest1286-21avahi-daemon11:10:021
2154193992111,3cyclictest2356534-21aten_repower_cu09:41:271
215419299218,8cyclictest0-21swapper/010:36:360
2154192992116,4cyclictest0-21swapper/008:20:010
2154192992115,5cyclictest2560850-21sort11:36:320
2154192992114,5cyclictest2576171-21systemd-run11:45:020
2154192992113,7cyclictest2507414-21grep11:06:290
215419299211,15cyclictest2205365-21munin-run07:50:010
2154193992017,2cyclictest2602401-21/usr/sbin/munin12:00:011
215419299209,7cyclictest2516260-21/usr/sbin/munin11:11:290
215419299204,7cyclictest2330002-21ssh09:26:270
215419299203,13cyclictest2637653-21munin-run12:20:010
2154192992014,5cyclictest2160850-21cpu07:15:020
2154192992013,5cyclictest2309130-21head09:11:390
2154192992013,5cyclictest2199306-21sh07:45:010
2154192992010,9cyclictest2390852-21kworker/u16:0+nfsiod11:04:330
2649091190,2phc2sys0-21swapper/312:19:333
2649091190,2phc2sys0-21swapper/312:02:503
215419499196,8cyclictest0-21swapper/208:50:012
215419499196,5cyclictest0-21swapper/208:30:012
215419499194,8cyclictest0-21swapper/210:00:012
215419499194,8cyclictest0-21swapper/210:00:012
215419499194,5cyclictest0-21swapper/209:40:012
2154193991916,2cyclictest2549858-21sh11:30:011
2154193991916,2cyclictest2390837-21/usr/sbin/munin10:00:001
2154193991916,2cyclictest2390837-21/usr/sbin/munin10:00:001
2154193991916,2cyclictest2382295-21latency_hist09:55:021
2154193991913,2cyclictest134050irq/121-eno110:05:011
215419299196,8cyclictest0-21swapper/010:00:010
215419299196,8cyclictest0-21swapper/010:00:010
2154192991913,5cyclictest2272128-21latency_hist08:45:010
2154192991912,6cyclictest2452914-21kworker/u16:3+nfsiod11:16:120
2154192991911,7cyclictest2567281-21kworker/u16:2+nfsiod12:09:190
215419299191,15cyclictest0-21swapper/010:32:310
215419299190,12cyclictest0-21swapper/010:01:280
2902298180,1rtkit-daemon0-21swapper/009:50:140
2649091180,2phc2sys0-21swapper/312:23:143
2649091180,2phc2sys0-21swapper/311:31:473
2649091180,2phc2sys0-21swapper/311:27:023
215419499186,8cyclictest0-21swapper/212:30:012
215419499181,7cyclictest0-21swapper/209:26:272
2154194991815,1cyclictest0-21swapper/208:20:012
2154193991815,2cyclictest2611032-21idleruntime-cro12:05:001
2154193991815,2cyclictest1326-21systemd-logind11:20:021
2154193991815,2cyclictest1290-21dbus-daemon10:50:021
2154193991815,2cyclictest0-21swapper/108:05:001
2154193991814,3cyclictest2169629-21gltestperf07:21:301
2154193991810,3cyclictest0-21swapper/111:40:011
215419299188,6cyclictest2432041-21grep10:21:360
215419299188,5cyclictest0-21swapper/009:25:010
215419299187,7cyclictest0-21swapper/012:11:320
215419299187,6cyclictest0-21swapper/011:51:330
215419299186,7cyclictest0-21swapper/010:46:320
215419299184,8cyclictest2665123-21aten2.4-expect12:36:260
215419299182,13cyclictest1-21systemd07:30:010
215419299181,9cyclictest0-21swapper/010:11:250
2154192991815,2cyclictest1286-21avahi-daemon09:05:010
2154192991814,3cyclictest1313-21gmain08:15:020
2154192991812,5cyclictest2597502-21kthreadcore11:56:350
2154192991812,5cyclictest2466388-21kthreadcore10:41:330
2154192991811,6cyclictest2452914-21kworker/u16:3+nfsiod10:55:240
215419299181,15cyclictest0-21swapper/009:10:010
215419299181,14cyclictest2655248-21munin-run12:30:010
2649091170,3phc2sys0-21swapper/310:17:443
2649091170,2phc2sys0-21swapper/309:13:413
26082792170,2sleep20-21swapper/212:01:352
215419499176,7cyclictest0-21swapper/212:20:012
215419499176,5cyclictest0-21swapper/207:40:012
215419499174,7cyclictest0-21swapper/207:20:012
215419499172,12cyclictest25528172sleep211:31:342
2154194991715,1cyclictest0-21swapper/210:30:022
2154194991715,1cyclictest0-21swapper/209:20:012
2154194991714,1cyclictest0-21swapper/211:36:322
215419499170,12cyclictest0-21swapper/211:00:012
215419399179,3cyclictest0-21swapper/111:00:001
2154193991714,2cyclictest2639013-21cpuspeed_turbos12:21:271
2154193991714,2cyclictest0-21swapper/110:30:011
2154193991713,3cyclictest2311461-21kworker/u16:0+nfsiod09:26:381
2154193991711,2cyclictest134050irq/121-eno111:35:011
215419399171,11cyclictest2278551-21tail08:51:271
2154193991710,3cyclictest2341803-21kthreadcore09:31:331
2154193991710,3cyclictest1996-21runrttasks11:01:291
215419299176,5cyclictest2337752-21kworker/u16:1-events_unbound09:45:290
2154192991711,5cyclictest2567281-21kworker/u16:2+nfsiod11:45:140
2154192991711,5cyclictest2421224-21kthreadcore10:16:340
2154192991711,5cyclictest2212389-21if_eno107:56:300
215419299171,12cyclictest2278219-21munin-run08:50:010
215419299171,11cyclictest2260306-21apt-get08:36:270
2154192991710,5cyclictest2536868-21kthreadcore11:21:340
2902298160,3rtkit-daemon0-21swapper/110:30:211
2649091160,3phc2sys0-21swapper/310:54:353
2649091160,1phc2sys0-21swapper/311:03:463
2154194991614,1cyclictest0-21swapper/211:26:342
215419499161,12cyclictest2585104-21chrt11:50:132
215419399168,3cyclictest0-21swapper/110:06:391
2154193991613,2cyclictest29021-21rtkit-daemon11:44:151
2154193991613,2cyclictest2434983-21munin-plugin-st10:25:011
2154193991613,2cyclictest2426135-21sh10:20:011
2154193991613,2cyclictest1326-21systemd-logind09:50:011
2154193991613,2cyclictest1290-21dbus-daemon08:00:011
2154193991613,2cyclictest0-21swapper/107:15:021
2154193991612,3cyclictest2567281-21kworker/u16:2+nfsiod11:54:381
2154193991612,3cyclictest2263446-21kthreadcore08:36:341
215419299169,6cyclictest2182480-21kthreadcore07:31:310
215419299169,6cyclictest171ktimers/008:51:260
215419299169,5cyclictest2166373-21kthreadcore07:16:350
215419299165,7cyclictest0-21swapper/012:01:330
215419299164,6cyclictest0-21swapper/008:06:270
215419299161,9cyclictest2169060-21aten2.4-expect07:21:270
2154192991613,2cyclictest2290426-21systemctl09:00:010
2154192991610,5cyclictest35255-21packagekitd07:37:410
215419299160,8cyclictest0-21swapper/008:01:270
2649091150,2phc2sys0-21swapper/309:36:053
2649091150,2phc2sys0-21swapper/309:25:133
215419499155,6cyclictest0-21swapper/210:50:012
215419499154,6cyclictest0-21swapper/210:20:012
215419499154,4cyclictest0-21swapper/208:06:262
215419499151,8cyclictest0-21swapper/210:51:282
2154194991513,1cyclictest0-21swapper/211:45:022
2154194991513,1cyclictest0-21swapper/207:15:022
2154194991512,2cyclictest0-21swapper/208:45:012
2154194991512,1cyclictest0-21swapper/211:06:292
2154194991512,1cyclictest0-21swapper/209:11:392
215419399158,3cyclictest0-21swapper/112:35:011
215419399157,4cyclictest2200113-21fschecks_time07:46:311
215419399155,3cyclictest0-21swapper/108:31:341
2154193991512,2cyclictest2539888-21rm11:23:401
2154193991512,2cyclictest2308425-21ssh09:11:351
2154193991512,2cyclictest2235677-21perf08:15:001
2154193991512,2cyclictest2224626-21fschecks_time08:06:301
2154193991512,2cyclictest2154187-21cyclictest11:11:321
2154193991512,2cyclictest1348-21wpa_supplicant12:10:431
2154193991512,2cyclictest0-21swapper/109:36:391
2154193991512,2cyclictest0-21swapper/109:00:011
2154193991511,3cyclictest2452914-21kworker/u16:3+nfsiod10:43:311
215419299159,5cyclictest2245423-21kthreadcore08:21:330
215419299158,6cyclictest2050527-21kworker/u16:2+nfsiod10:50:470
215419299158,5cyclictest0-21swapper/007:10:010
215419299151,9cyclictest2211157-21latency_hist07:55:010
2649091145,2phc2sys0-21swapper/311:36:323
2649091140,2phc2sys0-21swapper/310:49:113
2649091140,2phc2sys0-21swapper/310:20:283
2649091140,2phc2sys0-21swapper/307:56:263
2649091140,1phc2sys0-21swapper/311:54:083
2649091140,1phc2sys0-21swapper/309:09:243
215419499144,6cyclictest0-21swapper/212:11:262
2154194991412,1cyclictest0-21swapper/207:45:012
2154194991411,1cyclictest0-21swapper/211:16:122
215419499140,11cyclictest2356281-21chrt09:41:072
215419399148,2cyclictest134050irq/121-eno109:21:291
215419399147,5cyclictest257-21systemd-journal09:03:001
215419399146,2cyclictest0-21swapper/107:51:261
2154193991411,2cyclictest2630479-21uniq12:16:291
2154193991411,2cyclictest2616031-21kthreadcore12:06:321
2154193991411,2cyclictest2456995-21kthreadcore10:36:341
2154193991411,2cyclictest2411377-21kthreadcore10:11:311
2154193991411,2cyclictest2320365-21latency_hist09:20:021
2154193991411,2cyclictest2236146-21aten2.4-expect08:16:271
2154193991411,2cyclictest2193485-21cpuspeed_turbos07:41:281
2154193991410,3cyclictest2655266-21kworker/u16:0+nfsiod12:35:211
2154193991410,3cyclictest2273103-21gltestperf08:46:311
2154193991410,3cyclictest2167102-21kthreadcore07:16:351
2649091134,2phc2sys0-21swapper/311:14:043
2649091131,5phc2sys0-21swapper/311:43:563
2649091131,5phc2sys0-21swapper/310:06:263
2649091131,1phc2sys0-21swapper/312:08:193
2649091130,3phc2sys0-21swapper/309:31:133
2649091130,2phc2sys0-21swapper/312:27:263
2649091130,2phc2sys0-21swapper/309:57:133
2649091130,2phc2sys0-21swapper/309:57:133
215419499139,2cyclictest0-21swapper/212:10:012
215419499139,2cyclictest0-21swapper/209:51:322
215419499135,3cyclictest0-21swapper/208:11:272
215419499134,6cyclictest0-21swapper/212:31:252
215419499134,4cyclictest0-21swapper/211:01:262
215419499133,6cyclictest0-21swapper/207:31:252
215419499132,2cyclictest0-21swapper/212:40:012
2154194991310,1cyclictest0-21swapper/211:56:352
2154194991310,1cyclictest0-21swapper/211:25:002
2154194991310,1cyclictest0-21swapper/211:14:342
2154194991310,1cyclictest0-21swapper/209:35:002
215419499130,4cyclictest0-21swapper/209:21:272
215419399139,3cyclictest2242410-21cpuspeed_turbos08:21:271
215419399138,1cyclictest134050irq/121-eno107:36:261
215419399137,2cyclictest2302422-21diskmemload11:45:451
215419399136,3cyclictest2181132-21tail07:31:261
2154193991311,1cyclictest2269126-21kthreadcore08:41:341
2154193991310,2cyclictest2647689-21cpuspeed12:26:271
2154193991310,2cyclictest2485695-21timerandwakeup10:51:401
2154193991310,2cyclictest2297542-21gltestperf09:06:321
215419299131,8cyclictest0-21swapper/008:31:270
2649091122,2phc2sys0-21swapper/309:41:303
2649091121,2phc2sys0-21swapper/311:59:013
2649091120,2phc2sys0-21swapper/308:45:193
2649091120,2phc2sys0-21swapper/307:36:493
2649091120,2phc2sys0-21swapper/307:09:553
2649091120,1phc2sys0-21swapper/311:07:243
2649091120,1phc2sys0-21swapper/310:00:263
2649091120,1phc2sys0-21swapper/308:30:483
215419499129,1cyclictest0-21swapper/210:11:362
215419499129,1cyclictest0-21swapper/210:06:342
215419499123,6cyclictest0-21swapper/208:51:262
215419499122,4cyclictest0-21swapper/207:56:262
2154194991210,1cyclictest0-21swapper/211:45:142
2154194991210,1cyclictest0-21swapper/210:41:332
2154194991210,1cyclictest0-21swapper/210:01:362
215419499120,6cyclictest0-21swapper/207:30:012
2154193991210,1cyclictest2248624-21cstates08:26:281
2649091111,4phc2sys0-21swapper/312:11:263
2649091111,3phc2sys0-21swapper/308:26:353
2649091110,3phc2sys0-21swapper/307:51:333
2649091110,2phc2sys0-21swapper/310:11:043
2649091110,2phc2sys0-21swapper/309:22:553
2649091110,2phc2sys0-21swapper/308:55:093
2649091110,1phc2sys0-21swapper/308:05:523
2649091110,1phc2sys0-21swapper/308:02:353
215419499119,1cyclictest0-21swapper/212:20:212
215419499119,1cyclictest0-21swapper/210:31:372
215419499118,1cyclictest0-21swapper/210:21:382
215419499118,1cyclictest0-21swapper/208:35:172
215419499116,3cyclictest22550032chrt08:31:302
215419499114,4cyclictest0-21swapper/209:10:012
215419499111,7cyclictest2242012-21taskset08:20:042
215419499111,7cyclictest2174828-21taskset07:25:022
215419499110,8cyclictest22957222sleep209:01:412
2649091101,2phc2sys0-21swapper/312:31:473
2649091101,2phc2sys0-21swapper/311:20:533
2649091101,2phc2sys0-21swapper/311:18:533
2649091101,2phc2sys0-21swapper/310:41:253
2649091101,2phc2sys0-21swapper/307:21:403
2649091100,2phc2sys0-21swapper/312:38:573
2649091100,2phc2sys0-21swapper/311:47:513
2649091100,2phc2sys0-21swapper/310:31:323
2649091100,2phc2sys0-21swapper/310:26:313
2649091100,2phc2sys0-21swapper/309:54:453
2649091100,2phc2sys0-21swapper/309:45:033
2649091100,2phc2sys0-21swapper/309:16:133
2649091100,2phc2sys0-21swapper/308:41:263
2649091100,2phc2sys0-21swapper/308:36:293
2649091100,2phc2sys0-21swapper/308:11:293
2649091100,2phc2sys0-21swapper/307:50:013
2649091100,2phc2sys0-21swapper/307:15:033
2649091100,1phc2sys0-21swapper/309:03:513
2649091100,1phc2sys0-21swapper/308:21:263
215419499108,1cyclictest0-21swapper/207:50:142
215419499101,6cyclictest2217598-21chrt08:01:012
215419499100,5cyclictest0-21swapper/209:00:022
215419399107,2cyclictest0-21swapper/107:10:021
264909191,2phc2sys0-21swapper/307:10:023
264909190,2phc2sys0-21swapper/310:35:403
264909190,2phc2sys0-21swapper/308:50:163
264909190,2phc2sys0-21swapper/308:16:303
264909190,2phc2sys0-21swapper/307:40:113
264909190,2phc2sys0-21swapper/307:34:213
264909190,1phc2sys0-21swapper/307:25:083
21541949997,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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