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2026-06-21 - 13:03
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack0slot2.osadl.org (updated Sun Jun 21, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2557012690,1sleep40-21swapper/422:03:254
407768624736,8sleep50-21swapper/519:07:235
407768824611,30sleep70-21swapper/719:07:257
407784324332,8sleep40-21swapper/419:09:384
4078128993735,2cyclictest561881-21kworker/u16:0+events_unbound00:39:146
4078128993634,2cyclictest244278-21kworker/u16:1+events_unbound22:41:236
4078128993630,6cyclictest4014666-21kworker/u16:1+events_unbound21:32:466
4078128993533,2cyclictest93004-21kworker/u16:3+flush-8:021:17:236
4078128993533,2cyclictest63916-21kworker/u16:0+flush-8:021:13:486
4078128993533,2cyclictest256501-21kworker/u16:5+events_unbound23:08:236
407773223525,7sleep60-21swapper/619:08:046
4078128993432,2cyclictest486428-21kworker/u16:3+events_unbound23:44:276
4078128993432,2cyclictest4169978-21kworker/u16:4+events_unbound21:47:276
4078128993432,2cyclictest244278-21kworker/u16:1+events_unbound22:27:356
4078122993432,2cyclictest502208-21kworker/u16:2+flush-8:023:45:104
4078128993331,2cyclictest426697-21kworker/u16:2+events_unbound23:31:396
4078128993331,2cyclictest388537-21kworker/u16:1+events_unbound23:19:186
4078128993331,2cyclictest339608-21kworker/u16:3+flush-8:022:35:226
4078122993331,2cyclictest561881-21kworker/u16:0+flush-8:000:35:144
4078122993331,2cyclictest388537-21kworker/u16:1+flush-8:023:00:114
4078122993330,2cyclictest4058351-21kworker/u16:2+flush-8:019:55:114
4078128993230,2cyclictest93004-21kworker/u16:3+events_unbound21:58:596
4078128993230,2cyclictest93004-21kworker/u16:3+events_unbound21:53:116
4078128993230,2cyclictest486428-21kworker/u16:3+events_unbound23:36:106
4078128993230,2cyclictest476401-21kworker/u16:0+events_unbound23:48:396
4078128993230,2cyclictest4169978-21kworker/u16:4+events_unbound21:23:036
4078122993229,2cyclictest256501-21kworker/u16:5+flush-8:023:14:584
4078128993129,2cyclictest426697-21kworker/u16:2+events_unbound23:14:196
4078128993129,2cyclictest244278-21kworker/u16:1+events_unbound22:32:106
4078128993129,2cyclictest244278-21kworker/u16:1+events_unbound22:14:066
4078128993129,2cyclictest244278-21kworker/u16:1+events_unbound22:14:066
4078122993129,2cyclictest4169978-21kworker/u16:4+events_unbound22:19:594
4078122993129,2cyclictest4058351-21kworker/u16:2+events_unbound19:20:104
4078130993028,1cyclictest16750irq/16-ehci_hcd:usb421:54:457
4078128993028,2cyclictest93004-21kworker/u16:3+events_unbound21:26:076
4078128993028,2cyclictest584176-21kworker/u16:1+events_unbound00:24:296
4078128993028,2cyclictest584176-21kworker/u16:1+events_unbound00:24:296
4078128993028,2cyclictest561881-21kworker/u16:0+events_unbound00:28:356
4078128993028,2cyclictest561881-21kworker/u16:0+events_unbound00:28:356
4078128993028,2cyclictest537897-21kworker/u16:4+events_unbound00:13:226
4078128993028,2cyclictest486428-21kworker/u16:3+events_unbound00:02:186
4078128993028,2cyclictest4169978-21kworker/u16:4+flush-8:020:35:096
4078128993028,2cyclictest4169978-21kworker/u16:4+events_unbound22:16:596
4078128993028,2cyclictest4169978-21kworker/u16:4+events_unbound21:36:346
4078128993028,2cyclictest388537-21kworker/u16:1+events_unbound00:07:466
4078128993028,2cyclictest256501-21kworker/u16:5+events_unbound22:56:466
4078122993028,2cyclictest4058351-21kworker/u16:2+events_unbound20:04:594
4078122993028,2cyclictest4058351-21kworker/u16:2+events_unbound20:04:594
4078122993027,3cyclictest4014666-21kworker/u16:1+flush-8:021:05:114
4078128992927,2cyclictest561881-21kworker/u16:0+events_unbound00:30:466
4078122992927,2cyclictest388537-21kworker/u16:1+flush-8:023:58:394
4078122992927,2cyclictest256501-21kworker/u16:5+flush-8:022:49:504
4078122992927,2cyclictest183604-21kworker/u16:2+events_unbound21:35:144
4078122992926,2cyclictest63916-21kworker/u16:0+flush-8:021:10:024
4078128992826,2cyclictest93004-21kworker/u16:3+events_unbound22:02:596
4078128992826,2cyclictest388537-21kworker/u16:1+flush-8:023:57:076
4078128992826,2cyclictest388537-21kworker/u16:1+events_unbound23:53:146
4078128992821,6cyclictest244278-21kworker/u16:1+events_unbound22:44:506
4078122992826,2cyclictest4169978-21kworker/u16:4+flush-8:021:19:404
4078122992825,2cyclictest586641-21kworker/u16:2+events_unbound00:29:474
4078130992726,0cyclictest0-21swapper/721:55:007
4078130992722,4cyclictest650-21systemd-journal22:49:457
4078128992725,2cyclictest4169978-21kworker/u16:4+flush-8:022:08:506
4078122992725,2cyclictest561881-21kworker/u16:0+flush-8:000:10:264
4078122992725,2cyclictest4014666-21kworker/u16:1+events_unbound19:30:104
4078122992724,2cyclictest183604-21kworker/u16:2+events_unbound22:09:594
4078122992724,2cyclictest183604-21kworker/u16:2+events_unbound22:09:594
4078130992625,0cyclictest0-21swapper/719:45:117
4078128992624,2cyclictest426697-21kworker/u16:2+events_unbound23:26:106
4078128992624,2cyclictest4014666-21kworker/u16:1+events_unbound21:44:156
4078128992624,2cyclictest339608-21kworker/u16:3+flush-8:022:51:506
4078122992624,2cyclictest4014666-21kworker/u16:1+events_unbound21:39:594
4078122992624,2cyclictest256501-21kworker/u16:5+flush-8:022:45:264
4078122992624,2cyclictest256501-21kworker/u16:5+events_unbound22:36:424
4078122992623,2cyclictest318071-21kworker/u16:0+flush-8:022:30:154
4078122992623,2cyclictest256501-21kworker/u16:5+flush-8:023:09:404
3535082260,1chrt353506-21ssh22:43:197
4078128992523,2cyclictest486428-21kworker/u16:3+events_unbound00:14:466
4078128992523,2cyclictest256501-21kworker/u16:5+events_unbound22:22:576
4078124992521,3cyclictest219874-21awk21:49:455
4078122992523,2cyclictest476401-21kworker/u16:0+flush-8:023:38:514
4078122992523,2cyclictest244278-21kworker/u16:1+flush-8:022:15:434
4078122992523,2cyclictest242023-21kworker/u16:0+flush-8:021:59:424
4078122992522,2cyclictest63916-21kworker/u16:0+events_unbound20:49:584
4078122992423,1cyclictest4169978-21kworker/u16:4+events_unbound22:07:564
4078122992422,2cyclictest561881-21kworker/u16:0+flush-8:000:15:304
4078122992422,2cyclictest4169978-21kworker/u16:4+events_unbound21:50:034
4078122992421,2cyclictest93004-21kworker/u16:3+flush-8:021:24:514
4078122992321,2cyclictest537897-21kworker/u16:4+events_unbound00:04:404
4078122992321,2cyclictest486428-21kworker/u16:3+flush-8:023:50:584
4078122992321,2cyclictest256501-21kworker/u16:5+flush-8:023:28:064
4078122992321,2cyclictest256501-21kworker/u16:5+flush-8:023:14:274
4078128992220,2cyclictest4058351-21kworker/u16:2+flush-8:020:00:036
4078128992220,2cyclictest4058351-21kworker/u16:2+flush-8:020:00:036
4078128992220,2cyclictest388537-21kworker/u16:1+events_unbound23:00:346
4078122992220,2cyclictest4137364-21kworker/u16:0+flush-8:019:35:144
4078130992120,0cyclictest0-21swapper/720:10:007
4078130992116,4cyclictest650-21systemd-journal23:19:407
4078128992119,2cyclictest426697-21kworker/u16:2+events_unbound23:21:506
4078128992118,2cyclictest4088091-21kworker/u16:4+flush-8:019:15:026
4078122992119,2cyclictest584176-21kworker/u16:1+flush-8:000:25:434
4078122992119,2cyclictest584176-21kworker/u16:1+flush-8:000:25:434
4078122992119,2cyclictest4169978-21kworker/u16:4+events_unbound22:28:554
4078122992119,2cyclictest364346-21kworker/u16:0+flush-8:022:57:034
4078124992015,4cyclictest4981-21latency_hist20:09:465
4078124992015,4cyclictest4981-21latency_hist20:09:465
4078122992018,2cyclictest4014666-21kworker/u16:1+flush-8:019:50:104
4078122992017,2cyclictest4058351-21kworker/u16:2+flush-8:020:20:104
4078128991917,2cyclictest4058351-21kworker/u16:2+events_unbound19:35:056
4078122991917,2cyclictest537897-21kworker/u16:4+flush-8:000:04:504
4078122991917,2cyclictest4169978-21kworker/u16:4+flush-8:021:32:034
4078122991917,2cyclictest4014666-21kworker/u16:1+flush-8:021:20:114
4078130991817,0cyclictest0-21swapper/723:54:357
407813099180,16cyclictest122078-21diskmemload21:30:087
4078128991813,4cyclictest44282-21latency_hist20:29:466
4078122991816,2cyclictest426697-21kworker/u16:2+events_unbound23:32:104
4078122991816,2cyclictest4014666-21kworker/u16:1+events_unbound21:44:564
4078124991712,4cyclictest4120818-21awk19:29:455
4078122991715,2cyclictest4014666-21kworker/u16:1+flush-8:019:45:014
4078128991614,2cyclictest74600-21kworker/u16:2+events_unbound20:56:566
4078128991614,2cyclictest4014666-21kworker/u16:1+events_unbound20:17:556
407812899160,16cyclictest0-21swapper/619:22:466
407812899160,16cyclictest0-21swapper/619:14:346
4078122991614,2cyclictest63916-21kworker/u16:0+flush-8:021:04:404
4078122991614,2cyclictest584176-21kworker/u16:1+events_unbound00:24:034
4078122991614,2cyclictest584176-21kworker/u16:1+events_unbound00:24:034
4078122991614,2cyclictest486428-21kworker/u16:3+flush-8:023:40:384
4078122991614,2cyclictest426697-21kworker/u16:2+flush-8:023:21:474
4078122991614,2cyclictest256501-21kworker/u16:5+flush-8:022:40:504
4078122991612,3cyclictest4101557-21cat19:19:454
4078130991513,1cyclictest0-21swapper/720:59:457
4078130991511,3cyclictest1278-21snmpd20:33:047
407813099150,13cyclictest1278-21snmpd23:33:457
407813099150,13cyclictest0-21swapper/723:25:097
407813099150,13cyclictest0-21swapper/719:25:097
4078128991513,2cyclictest4014666-21kworker/u16:1+events_unbound19:42:116
4078124991514,1cyclictest0-21swapper/521:01:245
4078122991513,2cyclictest4087549-21kworker/u16:3+flush-8:019:25:164
4078122991513,2cyclictest4058351-21kworker/u16:2+flush-8:020:25:044
4078122991511,3cyclictest102755-21cat20:59:454
407813099148,5cyclictest650-21systemd-journal21:49:407
407813099146,7cyclictest6083-21gmain20:15:067
4078130991412,1cyclictest197466-21ssh21:40:027
4078130991411,2cyclictest0-21swapper/722:39:457
407812899142,11cyclictest4155899-21cut19:45:046
4078128991412,2cyclictest4014666-21kworker/u16:1+flush-8:020:08:576
4078128991412,2cyclictest4014666-21kworker/u16:1+flush-8:020:08:576
4078128991412,2cyclictest4014666-21kworker/u16:1+flush-8:019:32:566
407812499149,4cyclictest330325-21munin-node22:34:565
4078124991413,1cyclictest0-21swapper/523:25:405
407812499140,1cyclictest0-21swapper/523:47:065
407812499140,1cyclictest0-21swapper/523:34:205
407812499140,1cyclictest0-21swapper/521:13:335
407812499140,13cyclictest0-21swapper/521:14:485
4078122991411,2cyclictest4048484-21kworker/u16:0+flush-8:019:10:064
407813099139,3cyclictest1278-21snmpd23:10:357
407813099139,3cyclictest1278-21snmpd23:09:447
407813099139,3cyclictest1278-21snmpd22:32:227
407813099139,3cyclictest1278-21snmpd22:16:407
407813099139,3cyclictest1278-21snmpd22:03:337
407813099139,3cyclictest1278-21snmpd21:08:267
407813099139,3cyclictest1278-21snmpd19:44:177
407813099139,3cyclictest1278-21snmpd19:10:527
4078130991311,1cyclictest0-21swapper/720:44:467
4078130991311,1cyclictest0-21swapper/719:15:017
4078130991310,2cyclictest1278-21snmpd20:07:577
4078130991310,2cyclictest1278-21snmpd20:07:577
407813099130,3cyclictest268103-21ssh22:08:437
407813099130,2cyclictest389745-21ssh22:57:377
4078128991312,1cyclictest0-21swapper/620:11:116
4078128991312,1cyclictest0-21swapper/619:55:156
4078128991311,2cyclictest63916-21kworker/u16:0+flush-8:021:04:456
407812899130,1cyclictest0-21swapper/621:01:286
4078124991312,1cyclictest0-21swapper/523:22:595
4078124991312,1cyclictest0-21swapper/522:16:085
4078124991312,1cyclictest0-21swapper/522:13:375
4078124991312,1cyclictest0-21swapper/522:13:375
4078124991312,1cyclictest0-21swapper/500:15:195
407812499130,1cyclictest0-21swapper/522:51:085
407812499130,13cyclictest0-21swapper/522:44:405
407812499130,13cyclictest0-21swapper/519:15:565
407812499130,13cyclictest0-21swapper/500:37:335
407812499130,0cyclictest0-21swapper/521:27:355
4078122991310,2cyclictest63916-21kworker/u16:0+events_unbound20:44:554
407813099129,2cyclictest1278-21snmpd23:37:247
407813099129,2cyclictest1278-21snmpd21:36:177
407813099129,2cyclictest1278-21snmpd20:01:007
407813099129,2cyclictest1278-21snmpd20:01:007
407813099129,2cyclictest1278-21snmpd00:12:587
407813099129,2cyclictest0-21swapper/700:19:457
407813099128,3cyclictest6341-21gvfs-afc-volume19:55:017
407813099128,3cyclictest1278-21snmpd23:04:117
407813099128,3cyclictest1278-21snmpd21:25:237
407813099128,3cyclictest1278-21snmpd21:19:177
407813099128,3cyclictest1278-21snmpd21:10:087
407813099128,3cyclictest1278-21snmpd20:49:257
407813099128,3cyclictest1278-21snmpd20:35:347
407813099128,3cyclictest1278-21snmpd19:23:177
407813099128,3cyclictest1278-21snmpd00:38:467
407813099127,4cyclictest1278-21snmpd20:25:107
407813099126,5cyclictest6341-21gvfs-afc-volume22:10:107
407813099126,5cyclictest6341-21gvfs-afc-volume22:10:107
407813099120,2cyclictest508442-21cut23:45:067
407813099120,2cyclictest443592-21ssh23:20:037
407813099120,2cyclictest316178-21ssh22:27:027
407813099120,1cyclictest0-21swapper/720:20:107
407813099120,11cyclictest1278-21snmpd00:09:257
407813099120,10cyclictest586740-21ssh00:19:577
407813099120,10cyclictest586740-21ssh00:19:577
407812899129,2cyclictest48965-21kthreadcore20:30:026
4078124991211,1cyclictest0-21swapper/523:08:105
4078124991211,1cyclictest0-21swapper/522:56:205
4078124991211,1cyclictest0-21swapper/522:25:075
4078124991211,1cyclictest0-21swapper/521:29:565
407812499120,1cyclictest0-21swapper/519:42:065
407812499120,12cyclictest0-21swapper/520:45:195
4078122991211,1cyclictest0-21swapper/420:34:464
407813099118,2cyclictest375618-21ssh22:50:107
407813099118,2cyclictest1278-21snmpd00:26:437
407813099118,2cyclictest1278-21snmpd00:26:437
407813099118,2cyclictest0-21swapper/721:20:147
407813099117,3cyclictest1278-21snmpd23:40:547
407813099117,3cyclictest1278-21snmpd19:33:567
407813099115,5cyclictest6341-21gvfs-afc-volume00:30:427
407813099115,4cyclictest294392-21rm22:20:007
407813099110,9cyclictest1278-21snmpd21:00:497
407813099110,10cyclictest547930-21ssh00:01:257
407812899119,1cyclictest25966-21smartctl20:20:006
4078128991110,1cyclictest0-21swapper/620:52:106
407812899110,10cyclictest4164538-21kthreadcore19:50:056
407812499118,2cyclictest101718-21pmu-power20:55:115
4078124991110,1cyclictest0-21swapper/522:31:355
4078124991110,1cyclictest0-21swapper/522:23:525
4078124991110,1cyclictest0-21swapper/521:09:365
4078124991110,1cyclictest0-21swapper/519:34:235
4078124991110,1cyclictest0-21swapper/500:05:335
407812499110,1cyclictest0-21swapper/520:16:385
407812499110,1cyclictest0-21swapper/520:10:385
407812299119,2cyclictest4014666-21kworker/u16:1+events_unbound20:39:584
407813099106,3cyclictest1278-21snmpd19:50:067
407813099106,3cyclictest1278-21snmpd19:36:477
407813099104,5cyclictest6980-21gmain20:49:587
407813099100,9cyclictest1278-21snmpd23:55:337
407812899109,1cyclictest0-21swapper/619:27:496
407812899107,2cyclictest64121-21/usr/sbin/munin20:40:126
407812899100,9cyclictest0-21swapper/620:45:036
407812499109,1cyclictest0-21swapper/521:23:575
407812499109,1cyclictest0-21swapper/500:23:415
407812499109,1cyclictest0-21swapper/500:23:415
407812499106,3cyclictest549717-21latency_hist00:04:455
407812499100,9cyclictest432102-21cut23:15:055
407812299109,1cyclictest0-21swapper/420:18:424
407812299109,1cyclictest0-21swapper/420:12:424
407812299108,2cyclictest4087549-21kworker/u16:3+flush-8:020:00:554
407812299108,2cyclictest4087549-21kworker/u16:3+flush-8:020:00:554
40781249998,1cyclictest0-21swapper/523:51:215
40781249998,1cyclictest0-21swapper/523:04:135
40781249998,1cyclictest0-21swapper/522:47:125
40781249998,1cyclictest0-21swapper/522:00:505
40781249998,1cyclictest0-21swapper/520:22:375
40781249998,1cyclictest0-21swapper/519:20:305
40781249995,3cyclictest489944-21cat23:40:005
40781249995,3cyclictest221173-21cat21:50:015
40781249987,1cyclictest0-21swapper/521:39:435
40781249987,1cyclictest0-21swapper/520:40:035
40781249987,1cyclictest0-21swapper/519:51:245
40781249986,1cyclictest0-21swapper/522:05:145
40781249986,1cyclictest0-21swapper/500:25:045
40781249986,1cyclictest0-21swapper/500:25:045
40781249985,2cyclictest0-21swapper/523:55:055
40781249984,3cyclictest4131179-21tr19:34:585
40781249983,4cyclictest569684-21cut00:10:065
40781249983,4cyclictest478928-21cat23:35:015
40781249983,4cyclictest418958-21cut23:10:015
40781249983,4cyclictest4151961-21tr19:45:015
40781249983,4cyclictest35226-21cat20:24:585
40781249983,4cyclictest232573-21awk21:54:585
40781249983,4cyclictest204149-21cut21:40:065
40781249980,1cyclictest0-21swapper/500:32:435
40781229984,3cyclictest51194-21cut20:30:034
40781229984,3cyclictest4142162-21kthreadcore19:40:014
40781249975,1cyclictest0-21swapper/520:00:015
40781249975,1cyclictest0-21swapper/520:00:015
40781249975,1cyclictest0-21swapper/519:55:035
40781249974,2cyclictest83655-21cpuspeed_turbos20:49:575
40781249972,4cyclictest58710-21grep20:35:045
40781249972,4cyclictest46656-21grep20:30:005
40781249972,4cyclictest4086632-21cat19:10:075
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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