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2026-05-07 - 19:26
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Thu May 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60414621130,2sleep30-21swapper/312:00:213
64043721060,1sleep00-21swapper/012:22:540
39068421050,2sleep30-21swapper/309:40:233
190154992617,2cyclictest134050irq/121-eno109:40:021
190155992321,1cyclictest0-21swapper/212:35:032
190153992312,6cyclictest0-21swapper/010:25:020
383433398220,4rtkit-daemon3851704-21mta-sts-daemon12:15:511
190155992217,3cyclictest0-21swapper/207:10:012
383433398210,2rtkit-daemon3851704-21mta-sts-daemon09:11:501
190155992119,1cyclictest0-21swapper/212:30:002
190154992118,2cyclictest603122-21cron12:00:001
190154992116,3cyclictest580649-21/usr/sbin/munin11:45:221
190153992118,2cyclictest0-21swapper/008:40:000
190153992113,7cyclictest445145-21kthreadcore10:15:250
19015499209,3cyclictest0-21swapper/110:05:321
190154992017,2cyclictest236399-21latency_hist07:45:001
190154992017,2cyclictest1326-21systemd-logind08:20:021
190154992015,3cyclictest423729-21kthreadcore10:00:241
19015399209,7cyclictest519796-21apt-get11:05:180
190153992017,2cyclictest473646-21apt-key10:35:010
190153992017,2cyclictest196466-21fschecks_time07:15:010
2649091191,2phc2sys0-21swapper/311:55:243
2649091190,13phc2sys0-21swapper/310:13:013
19015599192,11cyclictest0-21swapper/209:15:172
190155991916,1cyclictest0-21swapper/207:15:012
190154991916,2cyclictest3827634-1atopacctd07:25:221
190154991915,2cyclictest134050irq/121-eno111:18:161
19015399199,9cyclictest363004-21kthreadcore09:20:260
19015399199,6cyclictest0-21swapper/010:25:250
19015399199,5cyclictest0-21swapper/012:35:320
19015399198,6cyclictest0-21swapper/011:50:300
19015399198,6cyclictest0-21swapper/009:25:320
190153991916,2cyclictest3841370-21avahi-daemon11:50:020
190153991916,2cyclictest324577-21latency_hist08:55:000
190153991913,1cyclictest134050irq/121-eno111:30:180
19015399190,12cyclictest535318-21expr11:15:200
2649091180,2phc2sys0-21swapper/308:50:013
190155991816,1cyclictest0-21swapper/212:15:242
190155991816,1cyclictest0-21swapper/211:25:212
190155991816,1cyclictest0-21swapper/211:00:012
190155991815,1cyclictest0-21swapper/210:55:002
190155991815,1cyclictest0-21swapper/210:20:242
190155991815,1cyclictest0-21swapper/210:20:012
190154991815,2cyclictest642738-21irqrtprio12:25:241
190154991815,2cyclictest619501-21grep12:10:231
190154991815,2cyclictest557922-21/usr/sbin/munin11:30:181
190154991815,2cyclictest496664-21systemd10:50:011
190154991815,2cyclictest467225-21tr10:30:241
190154991815,2cyclictest366183-21sh09:25:001
190154991815,2cyclictest241784-21processes07:45:271
190154991814,3cyclictest497612-21cut10:50:211
19015399189,5cyclictest624077-21python312:10:310
190153991815,2cyclictest345109-21kthreadcore09:10:260
190153991815,2cyclictest274055-21unixbench_multi08:10:320
190153991815,2cyclictest190151-21cyclictest12:15:310
190153991814,3cyclictest0-21swapper/010:15:000
190153991814,3cyclictest0-21swapper/009:40:010
190153991811,6cyclictest0-21swapper/010:10:000
2649091171,2phc2sys0-21swapper/309:10:273
2649091171,2phc2sys0-21swapper/307:10:203
2649091170,2phc2sys0-21swapper/312:28:483
2649091170,2phc2sys0-21swapper/311:36:473
2649091170,1phc2sys0-21swapper/310:22:113
19015599176,4cyclictest0-21swapper/210:30:212
190155991714,1cyclictest0-21swapper/211:40:012
190155991714,1cyclictest0-21swapper/209:30:292
190155991714,1cyclictest0-21swapper/208:05:002
19015499178,1cyclictest17350irq/127-ahci[0000:00:17.0]08:55:211
19015499174,5cyclictest134050irq/121-eno112:00:231
190154991714,2cyclictest656436-21systemd-run12:35:001
190154991714,2cyclictest635277-21kthreadcore12:20:241
190154991714,2cyclictest589565-21kernelversion11:50:241
190154991714,2cyclictest549903-21cut11:25:011
190154991714,2cyclictest0-21swapper/107:20:021
190154991712,3cyclictest576012-21kthreadcore11:40:261
190154991712,3cyclictest0-21swapper/107:30:171
190154991712,2cyclictest481335-21systemd-run10:40:011
19015399177,4cyclictest0-21swapper/011:10:280
190153991714,2cyclictest644409-21kthreadcore12:25:260
190153991714,2cyclictest578273-21ptp4l11:40:290
190153991714,2cyclictest511891-21systemd-run11:00:000
190153991714,2cyclictest482992-21kthreadcore10:40:250
190153991714,2cyclictest405701-21gltestperf09:50:230
190153991714,2cyclictest398093-21gltestperf09:45:210
190153991714,2cyclictest205025-21cut07:20:000
190153991714,2cyclictest0-21swapper/011:30:010
190153991714,2cyclictest0-21swapper/011:05:010
19015399170,6cyclictest261689-21unin-run08:05:000
19015399170,4cyclictest211241-21wc07:25:000
2649091160,2phc2sys0-21swapper/312:35:143
2649091160,1phc2sys0-21swapper/312:20:503
19015599161,7cyclictest0-21swapper/208:25:182
190155991614,1cyclictest0-21swapper/209:20:212
190155991613,1cyclictest0-21swapper/212:15:012
190155991613,1cyclictest0-21swapper/211:50:232
190155991613,1cyclictest0-21swapper/211:19:482
190155991613,1cyclictest0-21swapper/210:15:012
190155991613,1cyclictest0-21swapper/210:05:212
190155991613,1cyclictest0-21swapper/209:45:262
190155991613,1cyclictest0-21swapper/209:38:342
190155991613,1cyclictest0-21swapper/209:28:152
190155991612,2cyclictest0-21swapper/211:59:182
190154991614,1cyclictest0-21swapper/110:25:011
190154991613,2cyclictest527130-21systemd11:10:011
190154991613,2cyclictest509550-21load10:55:281
190154991613,2cyclictest481831-21aten2.4-expect10:40:191
190154991613,2cyclictest402857-21timerwakeupswit09:45:321
190154991613,2cyclictest3827634-1atopacctd08:15:001
190154991612,3cyclictest392656-21kthreadcore09:40:271
190154991612,3cyclictest295611-21kthreadcore08:30:241
190154991611,3cyclictest659956-21kthreadcore12:35:271
190154991610,4cyclictest0-21swapper/109:55:261
19015499160,4cyclictest286993-21awk08:25:001
19015399168,4cyclictest0-21swapper/009:40:210
19015399168,2cyclictest0-21swapper/010:45:240
19015399167,5cyclictest0-21swapper/011:55:270
19015399167,5cyclictest0-21swapper/010:03:330
19015399167,4cyclictest3840882-21snmpd09:07:120
190153991613,2cyclictest611035-21latency_hist12:05:030
190153991613,2cyclictest286992-21sh08:25:000
190153991613,2cyclictest262106-21aten_repower_fr08:05:210
190153991613,2cyclictest236456-21latency_hist07:45:000
190153991612,3cyclictest475294-21kthreadcore10:35:250
190153991612,3cyclictest353890-21kthreadcore09:15:250
190153991611,4cyclictest314404-21kthreadcore08:45:240
190153991611,4cyclictest248861-21cron07:55:000
190153991611,4cyclictest248861-21cron07:55:000
190153991611,4cyclictest220977-21kthreadcore07:30:250
190153991610,4cyclictest1290-21dbus-daemon10:55:010
2649091150,2phc2sys0-21swapper/312:14:003
2649091150,2phc2sys0-21swapper/311:48:203
2649091150,2phc2sys0-21swapper/310:36:033
2649091150,1phc2sys0-21swapper/311:22:183
2649091150,1phc2sys0-21swapper/308:19:053
19015599151,8cyclictest0-21swapper/212:05:182
190155991513,1cyclictest0-21swapper/212:00:232
190155991513,1cyclictest0-21swapper/211:45:022
190155991513,1cyclictest0-21swapper/207:15:222
190155991512,1cyclictest0-21swapper/211:33:402
190155991512,1cyclictest0-21swapper/211:15:002
190155991512,1cyclictest0-21swapper/211:08:242
190155991512,1cyclictest0-21swapper/210:44:072
190155991512,1cyclictest0-21swapper/210:25:252
190155991512,1cyclictest0-21swapper/209:50:262
190155991512,1cyclictest0-21swapper/208:40:012
190155991512,1cyclictest0-21swapper/208:05:212
190154991512,2cyclictest566015-21forks11:35:221
190154991512,2cyclictest3834332-21rtkit-daemon08:50:211
190154991512,2cyclictest338730-21kthreadcore09:05:271
190154991512,2cyclictest303010-21kthreadcore08:35:251
190154991512,2cyclictest227042-21kthreadcore07:35:281
190154991512,2cyclictest0-21swapper/107:20:211
190154991511,3cyclictest436555-21irqrtprio10:10:241
190154991511,3cyclictest3851702-21mta-sts-daemon07:55:001
190154991511,3cyclictest3851702-21mta-sts-daemon07:55:001
190154991511,3cyclictest377032-21kthreadcore09:30:251
190154991511,3cyclictest367922-21kthreadcore09:25:241
190154991511,3cyclictest308603-21kthreadcore08:40:251
190154991511,3cyclictest194994-21kthreadcore07:10:261
190154991510,3cyclictest0-21swapper/110:20:021
19015499150,14cyclictest412157-21idleruntime-cro09:55:001
19015399156,3cyclictest0-21swapper/009:55:190
19015399154,6cyclictest654807-21awk12:30:320
190153991512,2cyclictest280747-21wc08:20:000
190153991512,2cyclictest242094-21timerwakeupswit07:45:300
190153991512,2cyclictest224850-21gltestperf07:35:220
190153991512,2cyclictest216743-21mailstats07:25:300
190153991511,3cyclictest324653-21kworker/u16:3+nfsiod09:31:030
2649091141,4phc2sys0-21swapper/311:00:173
2649091140,2phc2sys0-21swapper/309:19:333
2649091140,1phc2sys0-21swapper/307:48:313
190155991412,1cyclictest0-21swapper/207:57:202
190155991411,2cyclictest0-21swapper/208:15:172
190155991411,1cyclictest0-21swapper/212:24:182
190155991411,1cyclictest0-21swapper/211:22:232
190155991411,1cyclictest0-21swapper/210:45:182
190155991411,1cyclictest0-21swapper/210:01:392
190155991411,1cyclictest0-21swapper/209:40:242
190155991411,1cyclictest0-21swapper/209:10:242
190155991411,1cyclictest0-21swapper/208:56:402
190155991411,1cyclictest0-21swapper/208:45:172
190155991411,1cyclictest0-21swapper/208:40:312
190155991411,1cyclictest0-21swapper/207:20:262
19015599140,9cyclictest0-21swapper/207:50:012
190154991411,2cyclictest611161-21/usr/sbin/munin12:05:191
190154991411,2cyclictest555828-21unixbench_multi11:25:311
190154991411,2cyclictest528458-21tr11:10:221
190154991411,2cyclictest515896-21kthreadcore11:00:261
190154991411,2cyclictest463766-21mailstats10:25:301
190154991411,2cyclictest3824567-21rs:main1
190154991411,2cyclictest352698-21kthreadcore09:15:241
190154991411,2cyclictest289508-21kthreadcore08:25:261
190154991411,2cyclictest252096-21kthreadcore07:55:271
190154991410,3cyclictest3851704-21mta-sts-daemon08:45:321
190154991410,3cyclictest257539-21kthreadcore08:00:241
19015399148,2cyclictest17350irq/127-ahci[0000:00:17.0]08:45:010
19015399143,6cyclictest16-21ksoftirqd/012:05:240
19015399142,7cyclictest0-21swapper/011:35:150
190153991411,2cyclictest334071-21kthreadcore09:00:250
190153991411,2cyclictest325440-21sh08:55:200
190153991411,2cyclictest296667-21kthreadcore08:30:250
190153991411,2cyclictest289004-21kthreadcore08:25:250
2649091131,3phc2sys0-21swapper/309:20:173
2649091131,3phc2sys0-21swapper/308:20:173
2649091130,6phc2sys0-21swapper/307:05:183
2649091130,3phc2sys0-21swapper/309:50:193
2649091130,2phc2sys0-21swapper/312:06:563
2649091130,2phc2sys0-21swapper/311:53:253
2649091130,2phc2sys0-21swapper/311:41:313
19015599139,2cyclictest0-21swapper/209:05:282
19015599131,8cyclictest0-21swapper/211:00:172
19015599131,7cyclictest0-21swapper/209:55:182
190155991311,1cyclictest0-21swapper/212:39:262
190155991311,1cyclictest0-21swapper/211:45:272
190155991311,1cyclictest0-21swapper/210:35:252
190155991311,1cyclictest0-21swapper/208:10:252
190155991311,1cyclictest0-21swapper/207:25:202
190155991310,1cyclictest0-21swapper/209:00:222
190155991310,1cyclictest0-21swapper/208:55:002
190155991310,1cyclictest0-21swapper/208:30:242
190155991310,1cyclictest0-21swapper/208:20:212
190155991310,1cyclictest0-21swapper/207:50:272
190155991310,1cyclictest0-21swapper/207:50:272
190155991310,1cyclictest0-21swapper/207:40:262
190155991310,1cyclictest0-21swapper/207:35:202
190155991310,1cyclictest0-21swapper/207:30:292
190154991310,2cyclictest3851705-21mta-sts-daemon09:01:531
19015399139,2cyclictest190342-21latency_hist07:10:020
19015399134,5cyclictest0-21swapper/011:20:260
19015399132,6cyclictest0-21swapper/007:55:060
2649091121,5phc2sys0-21swapper/311:15:173
2649091120,2phc2sys0-21swapper/311:27:083
2649091120,2phc2sys0-21swapper/310:55:003
2649091120,2phc2sys0-21swapper/309:39:303
2649091120,2phc2sys0-21swapper/307:15:173
2649091120,1phc2sys0-21swapper/310:08:353
2649091120,1phc2sys0-21swapper/308:11:033
19015499129,2cyclictest190320-21systemd-run07:10:021
2649091112,2phc2sys0-21swapper/308:40:253
2649091111,2phc2sys0-21swapper/310:45:223
2649091110,4phc2sys0-21swapper/308:50:183
2649091110,3phc2sys0-21swapper/310:04:323
2649091110,2phc2sys0-21swapper/311:05:183
2649091110,2phc2sys0-21swapper/309:27:433
2649091110,1phc2sys0-21swapper/308:37:363
6263122101,6sleep30-21swapper/312:15:173
4889382100,2sleep30-21swapper/310:45:013
2649091101,2phc2sys0-21swapper/311:15:003
2649091101,2phc2sys0-21swapper/310:55:483
2649091101,2phc2sys0-21swapper/309:30:273
2649091101,2phc2sys0-21swapper/307:55:243
2649091101,2phc2sys0-21swapper/307:40:303
2649091101,2phc2sys0-21swapper/307:25:273
2649091100,2phc2sys0-21swapper/311:31:283
2649091100,2phc2sys0-21swapper/310:34:493
2649091100,2phc2sys0-21swapper/310:18:493
2649091100,2phc2sys0-21swapper/309:59:173
2649091100,2phc2sys0-21swapper/308:00:173
2649091100,1phc2sys0-21swapper/307:39:293
2649091100,1phc2sys0-21swapper/307:34:163
264909191,3phc2sys0-21swapper/307:20:193
264909191,2phc2sys0-21swapper/310:25:263
264909190,2phc2sys0-21swapper/312:30:243
264909190,2phc2sys0-21swapper/309:45:063
264909190,2phc2sys0-21swapper/309:05:263
264909190,2phc2sys0-21swapper/309:04:563
264909190,2phc2sys0-21swapper/308:56:083
264909190,2phc2sys0-21swapper/308:30:313
264909190,2phc2sys0-21swapper/308:25:223
264909190,2phc2sys0-21swapper/308:05:343
264909190,2phc2sys0-21swapper/307:50:353
264909190,2phc2sys0-21swapper/307:50:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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