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2026-03-18 - 20:54
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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 Wed Mar 18, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41740221920,2sleep30-21swapper/310:21:433
26320921150,3sleep30-21swapper/308:51:293
53233121050,2sleep30-21swapper/311:26:353
39896321020,2sleep30-21swapper/310:11:373
139061992815,8cyclictest590427-21/usr/sbin/munin12:01:350
139061992815,8cyclictest403156-21runrttasks10:16:320
13906199269,9cyclictest0-21swapper/011:41:270
13906199269,8cyclictest0-21swapper/010:31:350
13906199260,1cyclictest482003-21munin-run11:00:000
13906199259,7cyclictest0-21swapper/011:16:340
139061992514,7cyclictest617048-21/usr/sbin/munin12:16:370
139061992513,8cyclictest1296-21polkitd11:50:010
6040192240,2sleep30-21swapper/312:06:353
2649091240,2phc2sys0-21swapper/308:46:303
139062992418,2cyclictest134050irq/121-eno110:01:401
13906199248,8cyclictest0-21swapper/009:36:350
13906199248,7cyclictest0-21swapper/009:15:010
13906199247,8cyclictest0-21swapper/009:55:000
13906199247,7cyclictest0-21swapper/012:21:340
13906199246,8cyclictest0-21swapper/010:05:010
13906199245,8cyclictest0-21swapper/010:15:010
13906199238,8cyclictest0-21swapper/010:55:010
139061992318,4cyclictest348593-21wc09:45:000
139061992313,9cyclictest637691-21kthreadcore12:26:350
13906199231,15cyclictest241rcuc/010:36:410
139061992311,10cyclictest0-21swapper/011:40:010
2649091221,2phc2sys0-21swapper/308:06:273
13906299225,11cyclictest582462-21cat11:56:321
139062992219,2cyclictest160530-21gltestperf07:26:321
13906199229,8cyclictest0-21swapper/010:00:010
13906199226,6cyclictest580495-21munin-run11:55:010
13906199224,1cyclictest0-21swapper/011:26:270
13906199224,11cyclictest256897-21aten_repower_fr08:46:290
139061992216,5cyclictest1288-1atopacctd11:15:000
139061992211,10cyclictest0-21swapper/010:25:020
139063992118,1cyclictest0-21swapper/211:55:012
139062992117,2cyclictest0-21swapper/110:30:011
139062992116,1cyclictest134050irq/121-eno111:21:281
139062992115,2cyclictest134050irq/121-eno112:31:341
139062992115,2cyclictest134050irq/121-eno109:46:321
139062992111,4cyclictest0-21swapper/112:26:411
139062992111,3cyclictest555081-21cpuspeed_turbos11:41:291
139062992111,3cyclictest492157-21/usr/sbin/munin11:06:331
13906199219,7cyclictest4102087-21kworker/u16:2-nfsiod10:46:280
13906199219,7cyclictest0-21swapper/012:35:020
13906199217,5cyclictest189862-21munin-run07:50:020
13906199214,9cyclictest202049-21awk08:00:000
13906199214,8cyclictest0-21swapper/012:11:350
13906199214,5cyclictest267041-21kthreadcore08:51:360
13906199214,5cyclictest227144-21df08:21:290
13906199211,9cyclictest165864-21apt-get07:31:280
139061992116,4cyclictest0-21swapper/011:25:000
13906199211,5cyclictest421028-21basename10:26:270
13906199211,2cyclictest0-21swapper/012:38:570
13906199211,14cyclictest582106-21df11:56:300
13906199211,11cyclictest487186-21cut11:01:350
13906199211,10cyclictest331054-21cat09:35:000
13906199210,16cyclictest256094-21users08:41:400
13906199210,12cyclictest285849-21latency09:06:360
2649091200,2phc2sys0-21swapper/309:16:113
2649091200,2phc2sys0-21swapper/307:31:313
139063992017,1cyclictest0-21swapper/211:00:002
13906299209,3cyclictest621618-21kthreadcore12:16:371
13906299207,3cyclictest419924-21kworker/u16:0+events_unbound10:35:011
13906299206,4cyclictest158859-21date07:21:411
139062992017,2cyclictest0-21swapper/109:15:011
13906199208,7cyclictest0-21swapper/009:15:220
13906199207,8cyclictest0-21swapper/009:45:160
13906199207,8cyclictest0-21swapper/009:25:510
13906199204,8cyclictest387309-21tr10:06:340
13906199202,13cyclictest0-21swapper/011:30:570
13906199202,13cyclictest0-21swapper/009:20:080
13906199202,10cyclictest0-21swapper/011:06:390
139061992014,5cyclictest179305-21kthreadcore07:41:340
13906199201,3cyclictest599886-21df_inode12:06:300
13906199200,3cyclictest451240-21cut10:41:350
13906199200,3cyclictest0-21swapper/007:20:210
13906199200,2cyclictest139381-21/usr/sbin/munin07:11:330
2649091190,2phc2sys0-21swapper/312:34:383
2649091190,2phc2sys0-21swapper/311:49:143
2649091190,2phc2sys0-21swapper/311:13:073
139063991915,2cyclictest0-21swapper/207:11:282
139063991915,1cyclictest0-21swapper/209:51:272
13906299199,3cyclictest387991-21kthreadcore10:06:351
13906299199,2cyclictest0-21swapper/110:20:011
139062991915,3cyclictest566507-21kthreadcore11:46:361
139062991915,3cyclictest542155-21switchtime11:31:401
139062991915,3cyclictest152666-21mailstats07:16:411
139062991915,3cyclictest0-21swapper/107:50:011
139062991913,2cyclictest134050irq/121-eno109:38:011
139062991912,2cyclictest313390-21latency_hist09:25:011
13906199195,5cyclictest16-21ksoftirqd/007:20:000
13906199193,9cyclictest177727-21kworker/u16:1+events_unbound08:16:290
13906199192,16cyclictest280829-21wc09:05:000
13906199191,10cyclictest219517-21python308:11:400
13906199191,10cyclictest159833-21http07:26:280
13906199190,3cyclictest0-21swapper/008:06:090
2649091180,2phc2sys0-21swapper/311:32:023
2649091180,2phc2sys0-21swapper/309:20:243
139063991815,1cyclictest0-21swapper/207:56:372
13906299187,4cyclictest474346-21diskmemload10:56:231
13906299186,7cyclictest348608-21turbostat09:45:001
139062991816,1cyclictest208059-21latency_hist08:05:001
139062991816,1cyclictest0-21swapper/112:10:011
139062991815,2cyclictest419545-21apt-key10:25:001
139062991815,2cyclictest394367-21aten_repower_en10:11:291
139062991815,2cyclictest326252-21kthreadcore09:31:351
139062991815,2cyclictest195970-21apt-key07:55:001
13906299181,4cyclictest322122-21latency_hist09:30:011
139062991814,2cyclictest0-21swapper/109:20:021
13906199181,9cyclictest243301-21memory08:31:380
13906199181,9cyclictest207435-21python308:01:400
139061991813,4cyclictest237560-21wc08:26:390
13906199181,10cyclictest274740-21latency_hist09:00:010
13906199181,10cyclictest190844-21hddtemp_smartct07:51:320
13906199180,9cyclictest244681-21/usr/sbin/munin08:36:320
13906199180,2cyclictest171925-21/usr/sbin/munin07:36:260
2649091170,4phc2sys0-21swapper/310:56:523
2649091170,2phc2sys0-21swapper/311:53:053
139063991714,1cyclictest0-21swapper/209:56:302
139063991712,2cyclictest0-21swapper/211:36:282
13906399170,14cyclictest446239-21chrt10:39:412
13906299177,2cyclictest286855-21diskmemload09:56:321
13906299176,4cyclictest625021-21diskmemload12:20:031
13906299175,5cyclictest514567-21tr11:16:361
13906299175,3cyclictest375545-21kworker/u16:1+rpciod10:52:471
13906299172,6cyclictest1288-1atopacctd11:38:131
139062991714,2cyclictest529416-21kthreadcore11:26:341
139062991714,2cyclictest490935-21dump-pmu-power11:05:001
139062991714,2cyclictest281355-21aten_repower_po09:06:281
139062991714,2cyclictest199152-21kthreadcore07:56:341
139062991714,2cyclictest168640-21kthreadcore07:31:361
139062991714,2cyclictest142847-21kthreadcore07:11:361
139062991714,2cyclictest0-21swapper/108:50:011
13906299171,2cyclictest506238-21python311:11:401
139061991710,5cyclictest139166-21latency_hist07:10:010
2649091160,2phc2sys0-21swapper/309:11:513
2649091160,2phc2sys0-21swapper/307:45:023
139063991614,1cyclictest0-21swapper/208:45:012
139063991613,1cyclictest0-21swapper/212:26:172
139063991613,1cyclictest0-21swapper/211:29:572
139063991613,1cyclictest0-21swapper/210:46:272
139063991613,1cyclictest0-21swapper/210:20:002
139063991613,1cyclictest0-21swapper/207:31:292
139063991613,1cyclictest0-21swapper/207:20:212
139063991612,2cyclictest0-21swapper/210:01:282
139063991611,2cyclictest0-21swapper/208:01:282
13906299168,4cyclictest0-21swapper/110:41:351
13906299165,4cyclictest358470-21diskmemload09:51:131
13906299164,5cyclictest653021-21expr12:36:301
13906299163,5cyclictest572064-21diskmemload11:50:341
13906299162,5cyclictest4114978-21snmpd08:20:561
139062991613,2cyclictest457364-21gltestperf10:46:311
139062991613,2cyclictest211245-21kthreadcore08:06:341
139062991613,2cyclictest173252-21kthreadcore07:36:331
139062991613,2cyclictest1288-1atopacctd10:39:501
139062991613,2cyclictest0-21swapper/112:01:401
139062991612,3cyclictest264384-21kthreadcore08:51:351
139062991612,3cyclictest223317-21kthreadcore08:16:361
139062991611,4cyclictest238392-21systemd-run08:30:011
2649091150,2phc2sys0-21swapper/312:17:563
2649091150,2phc2sys0-21swapper/309:27:003
2649091150,1phc2sys0-21swapper/312:35:363
2649091150,1phc2sys0-21swapper/310:06:243
139063991513,1cyclictest0-21swapper/212:15:002
139063991513,1cyclictest0-21swapper/209:31:352
139063991512,1cyclictest0-21swapper/212:32:552
139063991512,1cyclictest0-21swapper/212:20:002
139063991512,1cyclictest0-21swapper/212:01:122
139063991512,1cyclictest0-21swapper/211:58:432
139063991512,1cyclictest0-21swapper/211:45:402
139063991512,1cyclictest0-21swapper/211:31:272
139063991512,1cyclictest0-21swapper/211:19:252
139063991512,1cyclictest0-21swapper/211:11:292
139063991512,1cyclictest0-21swapper/211:05:152
139063991512,1cyclictest0-21swapper/210:44:332
139063991512,1cyclictest0-21swapper/210:30:142
139063991512,1cyclictest0-21swapper/210:26:352
139063991512,1cyclictest0-21swapper/210:06:292
139063991512,1cyclictest0-21swapper/209:46:362
139063991512,1cyclictest0-21swapper/209:43:102
139063991512,1cyclictest0-21swapper/209:24:542
139063991512,1cyclictest0-21swapper/209:15:272
139063991512,1cyclictest0-21swapper/209:10:262
139063991512,1cyclictest0-21swapper/209:01:292
139063991511,2cyclictest0-21swapper/209:35:572
139062991512,2cyclictest607732-21sshd12:10:491
139062991512,2cyclictest272665-21kthreadcore08:56:371
139062991512,2cyclictest255993-21unixbench-2d08:41:391
139062991512,2cyclictest238703-21aten_repower_cu08:31:271
139062991511,3cyclictest276145-21irqcore09:01:331
139062991511,3cyclictest247461-21kthreadcore08:36:351
139062991511,3cyclictest181611-21kthreadcore07:41:351
13906299150,12cyclictest208091-21kworker/1:0+events08:11:341
2649091141,3phc2sys0-21swapper/311:44:203
2649091140,2phc2sys0-21swapper/312:00:483
2649091140,2phc2sys0-21swapper/311:57:473
2649091140,2phc2sys0-21swapper/311:25:013
2649091140,2phc2sys0-21swapper/311:05:293
2649091140,2phc2sys0-21swapper/311:04:293
2649091140,2phc2sys0-21swapper/307:09:233
139063991412,1cyclictest0-21swapper/212:40:012
139063991412,1cyclictest0-21swapper/211:45:002
139063991412,1cyclictest0-21swapper/208:35:022
139063991412,1cyclictest0-21swapper/208:21:292
139063991411,1cyclictest0-21swapper/212:21:192
139063991411,1cyclictest0-21swapper/212:06:172
139063991411,1cyclictest0-21swapper/211:21:302
139063991411,1cyclictest0-21swapper/211:00:082
139063991411,1cyclictest0-21swapper/210:23:282
139063991411,1cyclictest0-21swapper/210:14:392
139063991411,1cyclictest0-21swapper/209:26:132
139063991411,1cyclictest0-21swapper/208:55:002
139063991411,1cyclictest0-21swapper/208:26:302
139063991410,2cyclictest0-21swapper/207:50:022
6275072130,5sleep30-21swapper/312:21:353
2649091131,3phc2sys0-21swapper/308:56:283
2649091130,2phc2sys0-21swapper/310:53:363
2649091130,2phc2sys0-21swapper/309:01:333
2649091130,2phc2sys0-21swapper/308:30:513
2649091130,1phc2sys0-21swapper/311:37:553
139063991311,1cyclictest0-21swapper/210:51:292
139063991311,1cyclictest0-21swapper/209:09:112
139063991311,1cyclictest0-21swapper/208:50:002
139063991311,1cyclictest0-21swapper/208:35:012
139063991311,1cyclictest0-21swapper/207:40:012
139063991311,1cyclictest0-21swapper/207:20:012
139063991310,1cyclictest0-21swapper/208:56:072
139063991310,1cyclictest0-21swapper/208:15:012
139063991310,1cyclictest0-21swapper/207:41:282
2649091122,2phc2sys0-21swapper/309:45:533
2649091121,3phc2sys0-21swapper/308:40:013
2649091121,3phc2sys0-21swapper/308:11:293
2649091120,3phc2sys0-21swapper/307:42:133
2649091120,2phc2sys0-21swapper/310:43:493
2649091120,2phc2sys0-21swapper/310:16:273
139063991210,1cyclictest0-21swapper/208:15:282
139063991210,1cyclictest0-21swapper/208:06:302
139063991210,1cyclictest0-21swapper/207:50:522
139063991210,1cyclictest0-21swapper/207:30:012
139063991210,1cyclictest0-21swapper/207:10:002
13906299128,3cyclictest0-21swapper/107:10:021
2649091117,2phc2sys0-21swapper/307:36:373
2649091115,2phc2sys0-21swapper/311:16:303
2649091111,6phc2sys374502-21chrt09:59:023
2649091110,2phc2sys0-21swapper/312:26:413
2649091110,2phc2sys0-21swapper/309:31:183
2649091110,1phc2sys0-21swapper/307:52:563
2649091110,1phc2sys0-21swapper/307:12:003
2649091103,3phc2sys0-21swapper/310:02:193
2649091101,2phc2sys0-21swapper/310:46:343
2649091101,2phc2sys0-21swapper/310:36:073
2649091101,2phc2sys0-21swapper/309:08:023
2649091101,2phc2sys0-21swapper/308:18:533
2649091101,1phc2sys0-21swapper/309:44:493
2649091100,3phc2sys0-21swapper/308:01:303
2649091100,2phc2sys0-21swapper/310:31:263
2649091100,2phc2sys0-21swapper/310:29:013
2649091100,2phc2sys0-21swapper/309:35:593
2649091100,2phc2sys0-21swapper/308:00:023
264909191,2phc2sys0-21swapper/309:50:023
264909191,2phc2sys0-21swapper/307:25:383
264909191,2phc2sys0-21swapper/307:21:383
264909191,2phc2sys0-21swapper/307:15:123
264909190,2phc2sys0-21swapper/312:11:143
264909190,2phc2sys0-21swapper/308:41:493
264909190,2phc2sys0-21swapper/308:26:343
264909190,2phc2sys0-21swapper/308:21:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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