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2026-01-02 - 21:42
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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 Fri Jan 02, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16001821080,2sleep30-21swapper/307:28:203
3727622390,2sleep30-21swapper/310:00:013
134351992914,6cyclictest134349-21cyclictest09:08:090
134351992522,2cyclictest363527-21grep09:55:010
134351992517,7cyclictest421895-21kthreadcore10:28:150
134352992416,3cyclictest611838-21kthreadcore12:13:181
4789452230,2sleep1478949-21switchtime10:58:221
134352992314,2cyclictest134050irq/121-eno111:31:081
13435199237,14cyclictest1-21systemd11:20:010
134352992219,2cyclictest444653-21latency_hist10:40:021
134351992219,2cyclictest134349-21cyclictest07:23:160
134351992210,8cyclictest527973-21/usr/sbin/munin11:28:110
134351992113,4cyclictest342793-21kthreadcore09:43:180
134351992110,10cyclictest623523-21kworker/u16:1-xprtiod12:29:570
134351992110,10cyclictest623523-21kworker/u16:1-xprtiod12:29:570
134352992017,2cyclictest257-21systemd-journal10:15:021
134352992017,2cyclictest257-21systemd-journal09:50:011
134352992014,2cyclictest134050irq/121-eno111:08:111
134352992013,3cyclictest483247-21cpuspeed_turbos11:03:111
134352992012,3cyclictest0-21swapper/109:45:011
13435199209,8cyclictest480505-21kworker/u16:2-rpciod11:57:290
134351992015,4cyclictest270111-21/usr/sbin/munin09:00:010
134351992014,5cyclictest645010-21tr12:33:110
134351992011,7cyclictest1290-21dbus-daemon11:13:230
134351992010,9cyclictest0-21swapper/010:48:110
134351992010,7cyclictest609273-21cstates12:13:130
134351992010,6cyclictest470579-21runrttasks10:53:550
134351992010,6cyclictest134349-21cyclictest10:59:010
13435199200,15cyclictest0-21swapper/009:39:140
2649091190,2phc2sys0-21swapper/311:54:523
2649091190,13phc2sys0-21swapper/309:11:083
134352991912,3cyclictest361974-21/usr/sbin/munin09:53:221
13435199199,8cyclictest0-21swapper/009:15:020
13435199199,5cyclictest319252-21kworker/u16:1-events_unbound09:57:190
134351991916,2cyclictest444730-21/usr/sbin/munin10:40:020
134351991915,3cyclictest257-21systemd-journal11:35:010
134351991913,5cyclictest29021-21rtkit-daemon11:41:020
134351991913,5cyclictest29021-21rtkit-daemon11:41:020
134351991912,5cyclictest399673-21cut10:15:010
13435199191,17cyclictest617742-21/usr/sbin/munin12:18:230
134351991911,7cyclictest480505-21kworker/u16:2+nfsiod12:06:530
134351991911,7cyclictest246003-21kworker/u16:3+nfsiod11:36:570
134351991910,7cyclictest319252-21kworker/u16:1+nfsiod09:34:390
5254922180,1sleep20-21swapper/211:25:012
4045902180,2sleep20-21swapper/210:18:192
2902298180,2rtkit-daemon0-21swapper/107:48:391
2649191180,1ptp4l0-21swapper/312:05:003
2649091180,4phc2sys0-21swapper/311:12:043
134352991815,2cyclictest605071-21timerandwakeup12:08:231
134352991810,4cyclictest134349-21cyclictest12:31:551
134352991810,3cyclictest0-21swapper/110:03:151
13435199189,4cyclictest281963-21diskmemload11:05:020
13435199188,6cyclictest0-21swapper/009:48:260
13435199185,8cyclictest0-21swapper/011:48:200
134351991815,2cyclictest386251-21kthreadcore10:08:170
134351991815,2cyclictest209319-21systemd-run08:10:010
134351991815,2cyclictest209319-21systemd-run08:10:010
134351991812,5cyclictest658429-21needreboot12:38:180
2649091171,2phc2sys0-21swapper/311:20:023
2649091170,2phc2sys0-21swapper/311:00:263
2649091170,2phc2sys0-21swapper/310:52:523
2649091170,2phc2sys0-21swapper/307:52:103
2649091170,1phc2sys0-21swapper/312:22:383
13435299177,2cyclictest134050irq/121-eno109:58:091
13435299176,5cyclictest264529-21aten2.4-expect08:58:131
134352991714,2cyclictest596012-21mailstats12:03:221
134352991714,2cyclictest588583-21sh12:00:001
134352991714,2cyclictest1290-21dbus-daemon09:30:021
134352991713,3cyclictest154817-21kworker/u16:0+nfsiod09:17:321
134352991711,2cyclictest191rcu_preempt10:08:211
134352991711,2cyclictest0-21swapper/112:30:001
134352991711,2cyclictest0-21swapper/112:30:001
134352991710,3cyclictest544170-21runrttasks11:35:271
134352991710,3cyclictest512022-21kthreadcore11:18:191
13435199178,5cyclictest405368-21kthreadcore10:18:200
13435199177,6cyclictest316325-21kthreadcore09:28:200
13435199177,5cyclictest0-21swapper/010:43:170
13435199173,8cyclictest381727-21cron10:05:010
13435199173,12cyclictest520168-21irqrtprio11:23:160
13435199171,8cyclictest574089-21cut11:53:160
13435199171,4cyclictest417404-21idleruntime-cro10:25:000
134351991714,2cyclictest629230-21kthreadcore12:23:170
134351991714,2cyclictest257-21systemd-journal07:10:000
134351991714,2cyclictest1326-21systemd-logind08:20:020
134351991713,3cyclictest0-21swapper/008:25:020
134351991712,3cyclictest1326-21systemd-logind12:05:020
134351991711,5cyclictest29021-21rtkit-daemon07:13:070
134351991711,5cyclictest230808-21kthreadcore08:28:170
134351991711,5cyclictest197770-21aten_repower_vo08:03:100
134351991711,5cyclictest134349-21cyclictest11:10:000
13435199170,7cyclictest432518-21cut10:33:190
2649091160,2phc2sys0-21swapper/311:44:103
2649091160,2phc2sys0-21swapper/311:44:103
2649091160,2phc2sys0-21swapper/311:28:483
2649091160,1phc2sys0-21swapper/309:53:073
134353991614,1cyclictest0-21swapper/209:00:012
134353991613,1cyclictest0-21swapper/212:33:112
134353991613,1cyclictest0-21swapper/211:17:072
134353991613,1cyclictest0-21swapper/209:08:092
13435299167,3cyclictest134050irq/121-eno110:48:531
13435299166,4cyclictest319252-21kworker/u16:1-xprtiod10:51:011
134352991613,2cyclictest633383-21awk12:25:001
134352991613,2cyclictest234368-21cpuspeed_turbos08:33:111
134352991613,2cyclictest141496-21kthreadcore07:15:021
134352991613,2cyclictest141496-21kthreadcore07:15:021
134352991613,2cyclictest1326-21systemd-logind11:50:011
134352991613,2cyclictest1326-21systemd-logind08:50:011
134352991613,2cyclictest1288-1atopacctd07:23:221
134352991613,2cyclictest1190-17auditd09:30:331
13435199169,6cyclictest160563-21unixbench_singl07:28:240
13435199162,9cyclictest234121-21aten2.4-expect08:33:090
134351991613,2cyclictest166912-21cut07:35:010
13435199161,13cyclictest1-21systemd07:20:010
13435199161,13cyclictest1-21systemd07:20:010
134351991610,5cyclictest168199-21if_enp1s007:38:150
134351991610,5cyclictest1288-1atopacctd08:35:410
2649091151,2phc2sys0-21swapper/310:39:323
2649091150,2phc2sys0-21swapper/312:15:303
2649091150,2phc2sys0-21swapper/310:56:043
2649091150,2phc2sys0-21swapper/309:30:253
13435399159,4cyclictest223071-21chrt08:23:172
134353991512,1cyclictest0-21swapper/211:41:022
134353991512,1cyclictest0-21swapper/211:41:022
134353991512,1cyclictest0-21swapper/210:28:192
13435399151,11cyclictest6153612sleep212:14:592
13435299157,6cyclictest261560-21tr08:53:191
134352991512,2cyclictest579581-21cron11:55:001
134352991512,2cyclictest304963-21kthreadcore09:23:171
134352991512,2cyclictest274340-21kthreadcore09:03:181
134352991512,2cyclictest257-21systemd-journal07:55:021
134352991512,2cyclictest222767-21gltestperf08:23:151
134352991512,2cyclictest0-21swapper/110:25:021
134352991511,3cyclictest504397-21kthreadcore11:13:191
134352991511,3cyclictest134349-21cyclictest12:38:091
134352991510,4cyclictest221549-21systemd-run08:20:011
13435199159,5cyclictest261168-21kthreadcore08:53:180
13435199159,5cyclictest255906-21kthreadcore08:48:190
13435199159,5cyclictest1288-1atopacctd08:13:160
13435199158,5cyclictest134050irq/121-eno109:20:120
13435199154,4cyclictest0-21swapper/009:18:470
134351991512,2cyclictest191101-21systemd-run07:55:010
3017932140,1sleep20-21swapper/209:21:452
2649091140,4phc2sys0-21swapper/312:28:263
2649091140,4phc2sys0-21swapper/312:28:263
2649091140,3phc2sys0-21swapper/310:25:033
2649091140,2phc2sys0-21swapper/311:36:493
2649091140,2phc2sys0-21swapper/310:15:533
2649091140,1phc2sys0-21swapper/310:22:333
13435399147,2cyclictest0-21swapper/209:10:582
13435399141,6cyclictest0-21swapper/212:35:422
134353991411,1cyclictest0-21swapper/211:10:002
134353991411,1cyclictest0-21swapper/210:15:012
134353991411,1cyclictest0-21swapper/210:08:182
134353991411,1cyclictest0-21swapper/209:43:372
134353991411,1cyclictest0-21swapper/209:39:432
134353991410,1cyclictest0-21swapper/211:30:122
13435399140,9cyclictest0-21swapper/209:30:012
13435399140,1cyclictest0-21swapper/207:18:112
13435399140,1cyclictest0-21swapper/207:18:112
13435399140,11cyclictest580920-21chrt11:56:342
13435399140,11cyclictest544997-21chrt11:36:422
13435399140,11cyclictest178807-21chrt07:43:262
13435399140,11cyclictest167204-21chrt07:36:092
13435399140,11cyclictest0-21swapper/210:57:282
13435299145,4cyclictest0-21swapper/111:28:171
13435299141,6cyclictest555142-21/usr/sbin/munin11:43:221
13435299141,6cyclictest555142-21/usr/sbin/munin11:43:221
134352991412,1cyclictest197260-21systemd-run08:00:011
134352991411,2cyclictest520099-21irqcore11:23:161
134352991411,2cyclictest251733-21cut08:45:011
134352991411,2cyclictest215274-21apt-key08:15:001
134352991411,2cyclictest204229-21fschecks_count08:08:131
134352991411,2cyclictest204229-21fschecks_count08:08:131
134352991411,2cyclictest1290-21dbus-daemon07:45:011
134352991411,2cyclictest0-21swapper/108:40:011
134352991410,3cyclictest363767-21kworker/u16:2+nfsiod10:10:421
134352991410,3cyclictest319252-21kworker/u16:1+nfsiod09:35:191
134352991410,3cyclictest233250-21unixbench-2d08:28:231
13435299140,3cyclictest0-21swapper/109:07:271
13435199145,7cyclictest1426-21gdbus07:43:220
13435199142,8cyclictest0-21swapper/009:03:110
13435199141,6cyclictest179407-21sshd07:47:090
13435199141,2cyclictest251731-21munin-run08:45:010
2649091132,2phc2sys0-21swapper/310:48:123
2649091131,3phc2sys0-21swapper/309:15:053
2649091130,4phc2sys0-21swapper/312:36:563
2649091130,3phc2sys0-21swapper/309:42:253
2649091130,2phc2sys0-21swapper/311:58:053
2649091130,2phc2sys0-21swapper/310:33:423
134353991311,1cyclictest0-21swapper/212:06:532
134353991310,1cyclictest0-21swapper/212:29:572
134353991310,1cyclictest0-21swapper/212:29:572
134353991310,1cyclictest0-21swapper/211:48:132
134353991310,1cyclictest0-21swapper/211:28:172
134353991310,1cyclictest0-21swapper/211:13:232
134353991310,1cyclictest0-21swapper/211:03:212
134353991310,1cyclictest0-21swapper/210:33:222
134353991310,1cyclictest0-21swapper/209:57:312
134353991310,1cyclictest0-21swapper/209:47:212
134353991310,1cyclictest0-21swapper/209:34:392
134353991310,1cyclictest0-21swapper/208:35:412
134353991310,1cyclictest0-21swapper/208:08:162
134353991310,1cyclictest0-21swapper/208:08:162
134353991310,1cyclictest0-21swapper/208:03:102
13435299139,3cyclictest136478-21kthreadcore07:13:181
13435299132,7cyclictest1288-1atopacctd09:10:191
13435299132,6cyclictest418429-21diskmemload10:25:431
134352991312,1cyclictest0-21swapper/112:17:451
134352991310,2cyclictest430181-21irqrtprio10:33:171
134352991310,2cyclictest200522-21kthreadcore08:03:171
134352991310,2cyclictest170579-21kthreadcore07:38:181
134352991310,2cyclictest156536-21kthreadcore07:28:171
13435199130,9cyclictest193197-21grep07:58:160
2649091121,2phc2sys0-21swapper/309:27:313
2649091120,2phc2sys0-21swapper/309:49:123
2649091120,2phc2sys0-21swapper/308:33:093
2649091120,2phc2sys0-21swapper/307:40:163
2649091120,2phc2sys0-21swapper/307:13:113
2649091120,1phc2sys0-21swapper/309:20:303
13435399129,1cyclictest0-21swapper/212:23:102
13435399129,1cyclictest0-21swapper/212:03:182
13435399129,1cyclictest0-21swapper/210:43:172
13435399129,1cyclictest0-21swapper/208:48:192
13435399128,2cyclictest0-21swapper/210:47:402
13435399121,7cyclictest0-21swapper/212:20:012
13435399121,7cyclictest0-21swapper/207:48:132
134353991210,1cyclictest0-21swapper/208:28:172
134353991210,1cyclictest0-21swapper/207:13:072
13435399120,9cyclictest4379222sleep210:38:122
13435399120,5cyclictest4090772sleep210:20:252
13435299129,2cyclictest446968-21aten_repower_fr10:43:101
13435299128,3cyclictest164164-21kthreadcore07:33:201
2649091112,2phc2sys0-21swapper/312:07:353
2649091111,2phc2sys0-21swapper/311:48:113
2649091110,3phc2sys0-21swapper/310:44:543
2649091110,3phc2sys0-21swapper/307:35:013
2649091110,2phc2sys0-21swapper/312:10:353
2649091110,2phc2sys0-21swapper/310:10:043
2649091110,2phc2sys0-21swapper/310:06:003
2649091110,2phc2sys0-21swapper/310:00:473
2649091110,2phc2sys0-21swapper/309:08:083
2649091110,1phc2sys0-21swapper/311:30:113
2649091110,1phc2sys0-21swapper/308:04:523
2649091110,1phc2sys0-21swapper/307:46:093
13435399119,1cyclictest0-21swapper/208:33:172
13435399118,1cyclictest0-21swapper/211:53:022
13435399118,1cyclictest0-21swapper/210:51:292
13435399118,1cyclictest0-21swapper/209:50:032
13435399118,1cyclictest0-21swapper/208:53:182
13435399118,1cyclictest0-21swapper/208:16:512
13435399118,1cyclictest0-21swapper/208:10:432
13435399118,1cyclictest0-21swapper/207:59:272
13435399118,1cyclictest0-21swapper/207:28:242
13435399111,5cyclictest0-21swapper/210:03:082
13435399110,9cyclictest0-21swapper/207:53:112
2649091106,1phc2sys0-21swapper/308:56:173
2649091101,2phc2sys0-21swapper/311:20:103
2649091101,2phc2sys0-21swapper/308:43:113
2649091101,2phc2sys0-21swapper/308:23:243
2649091101,2phc2sys0-21swapper/307:23:173
2649091100,2phc2sys0-21swapper/312:30:043
2649091100,2phc2sys0-21swapper/311:05:553
2649091100,2phc2sys0-21swapper/309:36:213
2649091100,2phc2sys0-21swapper/308:29:563
13435399108,1cyclictest0-21swapper/209:01:552
13435399108,1cyclictest0-21swapper/208:44:302
13435399108,1cyclictest0-21swapper/207:32:502
13435299104,4cyclictest1-21systemd07:10:011
264909191,2phc2sys0-21swapper/309:00:103
264909191,2phc2sys0-21swapper/308:18:233
264909190,2phc2sys0-21swapper/308:50:323
264909190,2phc2sys0-21swapper/308:50:003
264909190,2phc2sys0-21swapper/308:37:463
264909190,2phc2sys0-21swapper/308:13:143
264909190,2phc2sys0-21swapper/308:08:133
264909190,2phc2sys0-21swapper/308:08:133
264909190,2phc2sys0-21swapper/307:55:033
264909190,2phc2sys0-21swapper/307:38:123
264909190,2phc2sys0-21swapper/307:15:033
264909190,2phc2sys0-21swapper/307:15:033
264909190,2phc2sys0-21swapper/307:08:143
1343539997,1cyclictest0-21swapper/209:15:142
1343539997,1cyclictest0-21swapper/207:20:322
1343539970,3cyclictest0-21swapper/207:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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