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2026-08-08 - 12:18
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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 376 highest latencies:
System rack0slot2.osadl.org (updated Sat Aug 08, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2650102940,1sleep50-21swapper/521:13:475
2650102940,1sleep50-21swapper/521:13:475
7838995856,2cyclictest215453-21kworker/u16:1+events_unbound21:13:546
7838995856,2cyclictest215453-21kworker/u16:1+events_unbound21:13:546
7844995551,2cyclictest482955-21swap22:43:547
7826995250,2cyclictest483397-21kworker/u16:5+events_unbound23:28:534
7834994946,2cyclictest416802-21kworker/u16:0+flush-8:022:23:375
7838994845,2cyclictest60110-21kworker/u16:3+flush-8:020:08:386
7838994845,2cyclictest461890-21kworker/u16:3+flush-8:022:58:366
7834994844,3cyclictest546079-21kworker/u16:0+flush-8:023:13:475
7834994844,3cyclictest546079-21kworker/u16:0+flush-8:023:13:475
7826994846,2cyclictest702919-21kworker/u16:1+flush-8:000:18:494
7834994644,2cyclictest4182058-21kworker/u16:2+flush-8:019:13:385
7834994643,2cyclictest461906-21kworker/u16:4+events_unbound22:53:385
7834994643,2cyclictest461906-21kworker/u16:4+events_unbound22:43:385
7844994544,0cyclictest0-21swapper/700:33:577
7844994544,0cyclictest0-21swapper/700:33:577
7826994542,2cyclictest483397-21kworker/u16:5+flush-8:023:48:364
7844994442,1cyclictest0-21swapper/722:03:547
7834994441,2cyclictest60110-21kworker/u16:3+events_unbound19:43:375
7826994442,2cyclictest653950-21kworker/u16:2+flush-8:023:58:534
7838994339,2cyclictest147561-21kworker/u16:0+flush-8:020:43:396
7834994342,1cyclictest302643-21kworker/u16:0+flush-8:021:38:385
7838994240,2cyclictest727376-21kworker/u16:2+events_unbound00:28:456
7838994240,2cyclictest416802-21kworker/u16:0+events_unbound22:18:536
7838994239,2cyclictest215453-21kworker/u16:1+flush-8:022:08:366
7834994240,2cyclictest60110-21kworker/u16:3+events_unbound20:38:535
74242426,31sleep70-21swapper/719:06:507
7844994137,2cyclictest663958-21sed23:58:557
7844994135,5cyclictest205556-21latency_hist20:48:237
7838994139,2cyclictest483397-21kworker/u16:5+flush-8:023:53:486
7838994139,2cyclictest483397-21kworker/u16:5+events_unbound23:23:366
7834994139,2cyclictest98992-21kworker/u16:2+flush-8:020:23:395
727724131,7sleep50-21swapper/519:04:475
7838994038,2cyclictest60110-21kworker/u16:3+flush-8:019:58:386
7838994038,2cyclictest316805-21kworker/u16:3+events_unbound21:58:456
7834994037,2cyclictest416802-21kworker/u16:0+flush-8:022:18:505
7834994037,2cyclictest215453-21kworker/u16:1+events_unbound20:53:255
7826994038,2cyclictest215453-21kworker/u16:1+flush-8:021:38:484
7838993937,2cyclictest350889-21kworker/u16:4+events_unbound22:13:386
7838993937,2cyclictest302643-21kworker/u16:0+events_unbound21:48:416
7834993937,2cyclictest302643-21kworker/u16:0+events_unbound21:33:545
7826993937,2cyclictest302643-21kworker/u16:0+events_unbound21:33:504
7826993937,2cyclictest215453-21kworker/u16:1+flush-8:021:03:394
7826993936,2cyclictest256894-21kworker/u16:3+events_unbound21:23:374
731623928,8sleep40-21swapper/419:05:184
7844993835,2cyclictest216347-21fschecks_time20:53:377
7844993834,2cyclictest214926-21users20:48:537
7838993836,2cyclictest678733-21kworker/u16:0+flush-8:000:08:246
7838993836,2cyclictest483397-21kworker/u16:5+events_unbound00:23:406
7834993835,2cyclictest8030-21kworker/u16:0+flush-8:019:38:355
7826993835,2cyclictest461890-21kworker/u16:3+events_unbound23:38:254
4029332380,1chrt0-21swapper/422:13:414
7838993735,2cyclictest594700-21kworker/u16:1+events_unbound23:37:336
7838993735,2cyclictest256894-21kworker/u16:3+events_unbound21:28:496
7834993735,2cyclictest702919-21kworker/u16:1+flush-8:000:23:505
7834993735,2cyclictest678733-21kworker/u16:0+events_unbound00:14:375
7834993735,2cyclictest642536-21kworker/u16:0+events_unbound23:56:575
7834993735,2cyclictest3487339-21kworker/u16:1+events_unbound19:58:465
7826993735,2cyclictest350889-21kworker/u16:4+events_unbound22:28:534
7826993735,2cyclictest316805-21kworker/u16:3+events_unbound21:58:574
7838993633,2cyclictest4182058-21kworker/u16:2+events_unbound19:23:376
7834993634,2cyclictest702919-21kworker/u16:1+events_unbound00:33:545
7834993634,2cyclictest702919-21kworker/u16:1+events_unbound00:33:545
7834993634,2cyclictest461906-21kworker/u16:4+events_unbound22:38:355
7834993633,2cyclictest98992-21kworker/u16:2+events_unbound20:43:255
7834993633,2cyclictest215453-21kworker/u16:1+flush-8:021:03:245
7826993634,2cyclictest483397-21kworker/u16:5+events_unbound23:18:494
7826993634,2cyclictest215453-21kworker/u16:1+events_unbound21:57:334
7826993634,2cyclictest215453-21kworker/u16:1+events_unbound21:57:334
7844993533,1cyclictest0-21swapper/722:11:247
7838993533,2cyclictest461890-21kworker/u16:3+events_unbound00:03:446
7834993533,2cyclictest8030-21kworker/u16:0+flush-8:019:28:465
7834993533,2cyclictest702919-21kworker/u16:1+events_unbound00:21:005
7834993533,2cyclictest483397-21kworker/u16:5+events_unbound23:48:085
7834993533,2cyclictest483397-21kworker/u16:5+events_unbound23:13:095
7834993533,2cyclictest461906-21kworker/u16:4+events_unbound23:01:045
7834993533,2cyclictest461890-21kworker/u16:3+events_unbound00:05:165
7834993533,2cyclictest235088-21kworker/u16:2+events_unbound21:47:125
7834993533,2cyclictest215453-21kworker/u16:1+flush-8:021:48:395
7834993532,2cyclictest350889-21kworker/u16:4+flush-8:021:53:255
7834993532,2cyclictest350889-21kworker/u16:4+flush-8:021:53:255
7826993533,2cyclictest483397-21kworker/u16:5+events_unbound00:23:524
7826993533,2cyclictest483397-21kworker/u16:5+events_unbound00:13:564
7826993533,2cyclictest461906-21kworker/u16:4+events_unbound22:43:484
7826993533,2cyclictest215453-21kworker/u16:1+events_unbound22:08:414
7844993432,1cyclictest0-21swapper/700:23:557
7838993432,2cyclictest60110-21kworker/u16:3+flush-8:020:18:526
7834993432,2cyclictest678733-21kworker/u16:0+events_unbound00:11:375
7834993432,2cyclictest483397-21kworker/u16:5+flush-8:022:52:485
7834993432,2cyclictest483397-21kworker/u16:5+events_unbound23:49:365
7834993432,2cyclictest483397-21kworker/u16:5+events_unbound00:31:215
7834993432,2cyclictest483397-21kworker/u16:5+events_unbound00:03:015
7834993432,2cyclictest461890-21kworker/u16:3+flush-8:023:19:365
7834993432,2cyclictest447779-21kworker/u16:2+events_unbound22:37:215
7834993432,2cyclictest447779-21kworker/u16:2+events_unbound22:37:215
7834993432,2cyclictest350889-21kworker/u16:4+events_unbound21:59:175
7834993432,2cyclictest215453-21kworker/u16:1+events_unbound22:09:525
7834993432,2cyclictest147561-21kworker/u16:0+flush-8:021:19:015
7826993432,2cyclictest256894-21kworker/u16:3+events_unbound21:28:364
7826993431,2cyclictest483397-21kworker/u16:5+flush-8:023:18:224
7826993431,2cyclictest483397-21kworker/u16:5+flush-8:023:18:224
7844993332,0cyclictest0-21swapper/721:27:007
7844993331,1cyclictest556722-21ssh23:15:377
7844993331,1cyclictest556722-21ssh23:15:377
7838993331,2cyclictest546079-21kworker/u16:0+events_unbound23:28:376
7838993331,2cyclictest215453-21kworker/u16:1+flush-8:022:27:336
7838993331,2cyclictest215453-21kworker/u16:1+events_unbound21:41:336
7834993331,2cyclictest594700-21kworker/u16:1+events_unbound23:40:175
7834993331,2cyclictest483397-21kworker/u16:5+events_unbound23:31:215
7834993331,2cyclictest461890-21kworker/u16:3+events_unbound23:35:205
7834993331,2cyclictest461890-21kworker/u16:3+events_unbound23:27:095
7834993331,2cyclictest401360-21kworker/u16:2+events_unbound22:15:285
7834993331,2cyclictest302643-21kworker/u16:0+events_unbound21:30:215
7834993331,2cyclictest256894-21kworker/u16:3+events_unbound21:26:015
7834993331,2cyclictest235088-21kworker/u16:2+events_unbound21:10:135
7834993331,2cyclictest215453-21kworker/u16:1+events_unbound22:30:095
7834993331,2cyclictest147561-21kworker/u16:0+flush-8:020:18:445
7826993331,2cyclictest350889-21kworker/u16:4+events_unbound21:50:334
7826993330,2cyclictest461906-21kworker/u16:4+events_unbound23:08:334
7844993230,1cyclictest523790-21kthreadcore23:03:407
7844993229,2cyclictest30054-21ntpq19:13:497
7844993229,2cyclictest125-21kswapd022:33:227
7838993230,2cyclictest350889-21kworker/u16:4+flush-8:022:28:576
7838993230,2cyclictest235088-21kworker/u16:2+flush-8:021:43:556
7838993229,2cyclictest147561-21kworker/u16:0+flush-8:020:58:386
7834993230,2cyclictest483397-21kworker/u16:5+events_unbound23:07:415
7834993230,2cyclictest316805-21kworker/u16:3+flush-8:022:05:015
7834993229,2cyclictest60110-21kworker/u16:3+flush-8:020:28:405
7826993230,2cyclictest4182058-21kworker/u16:2+events_unbound19:13:454
7844993130,0cyclictest0-21swapper/722:54:087
7844993130,0cyclictest0-21swapper/700:06:577
7844993127,2cyclictest410347-21ntpq22:13:527
784499310,29cyclictest615406-21sshd-session23:38:497
7838993129,2cyclictest594700-21kworker/u16:1+flush-8:023:49:016
7838993129,2cyclictest461906-21kworker/u16:4+events_unbound22:47:336
7826993129,2cyclictest727376-21kworker/u16:2+events_unbound00:28:584
7826993129,2cyclictest594700-21kworker/u16:1+flush-8:023:33:524
7826993129,2cyclictest461890-21kworker/u16:3+flush-8:022:48:564
7826993129,2cyclictest4182058-21kworker/u16:2+events_unbound19:23:414
7826993129,2cyclictest416802-21kworker/u16:0+events_unbound22:18:574
7844993029,0cyclictest0-21swapper/723:20:057
7844993029,0cyclictest0-21swapper/721:59:017
7844993028,1cyclictest0-21swapper/721:30:257
7838993029,1cyclictest483397-21kworker/u16:5+events_unbound00:15:296
7838993028,2cyclictest546079-21kworker/u16:0+events_unbound23:15:496
7838993028,2cyclictest546079-21kworker/u16:0+events_unbound23:15:496
7838993028,2cyclictest483397-21kworker/u16:5+flush-8:023:18:326
7834993028,2cyclictest98992-21kworker/u16:2+flush-8:019:53:435
7834993028,2cyclictest4182058-21kworker/u16:2+events_unbound19:18:465
7834993028,2cyclictest3487339-21kworker/u16:1+flush-8:019:33:475
7834993028,2cyclictest3487339-21kworker/u16:1+events_unbound19:26:585
7826993028,2cyclictest653950-21kworker/u16:2+events_unbound00:04:334
7826993028,2cyclictest483397-21kworker/u16:5+events_unbound23:53:524
7826993028,2cyclictest461906-21kworker/u16:4+flush-8:022:38:574
7826993028,2cyclictest416802-21kworker/u16:0+events_unbound22:23:254
7826993028,2cyclictest147561-21kworker/u16:0+events_unbound20:18:484
735523019,8sleep60-21swapper/619:05:526
7844992928,0cyclictest0-21swapper/721:43:587
7844992928,0cyclictest0-21swapper/721:12:407
7844992928,0cyclictest0-21swapper/700:09:287
7844992924,4cyclictest714946-21latency_hist00:23:237
7838992927,2cyclictest678733-21kworker/u16:0+events_unbound00:20:136
7838992927,2cyclictest653950-21kworker/u16:2+flush-8:023:58:386
7838992927,2cyclictest302643-21kworker/u16:0+events_unbound21:33:336
7834992927,2cyclictest3487339-21kworker/u16:1+flush-8:020:08:485
7826992927,2cyclictest461890-21kworker/u16:3+events_unbound22:57:334
7826992927,2cyclictest447779-21kworker/u16:2+events_unbound22:33:444
7826992927,2cyclictest447779-21kworker/u16:2+events_unbound22:33:444
7826992927,2cyclictest3487339-21kworker/u16:1+events_unbound20:13:374
7826992927,2cyclictest302643-21kworker/u16:0+flush-8:021:44:324
7826992926,2cyclictest483397-21kworker/u16:5+events_unbound23:03:324
4338652290,1chrt433866-21kthreadcore22:23:457
7844992827,0cyclictest0-21swapper/721:51:527
7844992827,0cyclictest0-21swapper/700:32:487
7844992826,1cyclictest0-21swapper/722:36:017
7844992826,1cyclictest0-21swapper/722:36:017
7844992825,2cyclictest60657-21grep19:33:357
7838992826,2cyclictest702919-21kworker/u16:1+events_unbound00:36:086
7838992826,2cyclictest702919-21kworker/u16:1+events_unbound00:36:086
7838992826,2cyclictest594700-21kworker/u16:1+events_unbound23:43:406
7838992826,2cyclictest235088-21kworker/u16:2+events_unbound21:20:336
7838992825,2cyclictest3487339-21kworker/u16:1+flush-8:019:33:386
7826992826,2cyclictest461890-21kworker/u16:3+events_unbound22:59:524
7826992826,2cyclictest215453-21kworker/u16:1+events_unbound21:18:494
7826992825,2cyclictest3487339-21kworker/u16:1+flush-8:019:58:334
7826992825,2cyclictest147561-21kworker/u16:0+flush-8:020:43:454
7844992726,0cyclictest0-21swapper/723:11:457
7844992725,1cyclictest0-21swapper/721:41:537
7844992724,2cyclictest597905-21kthreadcore23:33:427
7844992721,5cyclictest79486-21latency_hist19:43:237
7838992725,2cyclictest447779-21kworker/u16:2+flush-8:022:34:326
7838992725,2cyclictest447779-21kworker/u16:2+flush-8:022:34:326
7826992725,1cyclictest483397-21kworker/u16:5+events_unbound23:43:244
7844992625,0cyclictest0-21swapper/723:02:367
7844992625,0cyclictest0-21swapper/721:22:267
7838992624,2cyclictest8030-21kworker/u16:0+events_unbound19:28:486
7838992624,2cyclictest461906-21kworker/u16:4+flush-8:023:10:336
7838992624,2cyclictest461906-21kworker/u16:4+flush-8:023:04:006
7838992624,2cyclictest461890-21kworker/u16:3+events_unbound22:54:336
7834992624,2cyclictest98992-21kworker/u16:2+events_unbound20:33:495
7826992624,2cyclictest483397-21kworker/u16:5+flush-8:000:08:444
7826992624,2cyclictest4182058-21kworker/u16:2+flush-8:019:18:504
7826992624,2cyclictest235088-21kworker/u16:2+flush-8:021:09:004
7844992524,0cyclictest0-21swapper/723:27:377
7844992524,0cyclictest0-21swapper/721:53:577
7844992524,0cyclictest0-21swapper/721:53:577
7844992523,1cyclictest594015-21ssh23:32:537
7844992523,1cyclictest240876-21tr21:03:437
7838992523,2cyclictest215453-21kworker/u16:1+flush-8:022:07:246
7834992523,2cyclictest3487339-21kworker/u16:1+flush-8:020:13:555
7826992522,2cyclictest60110-21kworker/u16:3+flush-8:019:48:334
7826992522,2cyclictest60110-21kworker/u16:3+flush-8:019:48:334
7844992423,0cyclictest0-21swapper/723:56:147
7844992423,0cyclictest0-21swapper/722:51:417
7844992423,0cyclictest0-21swapper/700:18:047
7844992422,1cyclictest639605-21ssh23:48:517
7844992421,2cyclictest233682-21needreboot20:58:477
7838992422,2cyclictest60110-21kworker/u16:3+flush-8:020:28:176
7834992422,2cyclictest147561-21kworker/u16:0+flush-8:020:48:435
7826992422,2cyclictest98992-21kworker/u16:2+events_unbound20:38:364
7826992422,2cyclictest483397-21kworker/u16:5+events_unbound00:33:364
7826992422,2cyclictest483397-21kworker/u16:5+events_unbound00:33:364
7844992321,1cyclictest472362-21ssh22:41:007
7844992319,2cyclictest100085-21iostat_ios19:53:387
7838992321,2cyclictest461890-21kworker/u16:3+flush-8:022:40:006
7838992321,2cyclictest461890-21kworker/u16:3+events_unbound22:51:046
7844992221,0cyclictest0-21swapper/723:46:367
7838992220,2cyclictest60110-21kworker/u16:3+flush-8:020:28:566
7838992220,2cyclictest3487339-21kworker/u16:1+events_unbound20:03:456
7838992220,2cyclictest316805-21kworker/u16:3+events_unbound21:54:256
7838992220,2cyclictest316805-21kworker/u16:3+events_unbound21:54:256
7838992220,2cyclictest215453-21kworker/u16:1+events_unbound21:25:486
7834992220,2cyclictest215453-21kworker/u16:1+flush-8:021:03:185
7826992220,2cyclictest483397-21kworker/u16:5+flush-8:023:24:334
7826992220,2cyclictest350889-21kworker/u16:4+events_unbound22:07:334
7838992119,2cyclictest461890-21kworker/u16:3+flush-8:023:39:126
7838992119,2cyclictest3487339-21kworker/u16:1+events_unbound19:43:556
7838992119,2cyclictest147561-21kworker/u16:0+events_unbound21:11:416
7826992119,2cyclictest8030-21kworker/u16:0+flush-8:019:43:434
7826992119,2cyclictest215453-21kworker/u16:1+events_unbound21:17:334
7826992119,2cyclictest215453-21kworker/u16:1+events_unbound21:17:334
7844992019,0cyclictest0-21swapper/720:32:567
7838992018,2cyclictest215453-21kworker/u16:1+flush-8:021:08:186
7834992018,2cyclictest3487339-21kworker/u16:1+events_unbound19:12:545
7826992017,2cyclictest4146973-21kworker/u16:3+events_unbound19:08:264
7844991918,0cyclictest0-21swapper/719:28:387
7844991917,1cyclictest263250-21grep21:13:457
7844991917,1cyclictest263250-21grep21:13:457
784499190,17cyclictest33018-21cut19:18:407
7838991917,2cyclictest3487339-21kworker/u16:1+events_unbound19:19:336
7838991917,2cyclictest147561-21kworker/u16:0+events_unbound20:48:516
7834991917,2cyclictest60110-21kworker/u16:3+events_unbound20:04:575
7826991917,2cyclictest60110-21kworker/u16:3+flush-8:020:03:394
7844991714,2cyclictest5955-21gsd-housekeepin20:24:577
7838991715,2cyclictest60110-21kworker/u16:3+flush-8:020:38:516
7838991715,2cyclictest147561-21kworker/u16:0+flush-8:020:33:386
7826991715,2cyclictest3487339-21kworker/u16:1+flush-8:019:38:484
7826991714,2cyclictest147561-21kworker/u16:0+flush-8:020:33:334
7844991615,0cyclictest0-21swapper/720:09:337
7844991613,2cyclictest1302-21snmpd19:11:057
784499160,14cyclictest150834-21cut20:18:427
7838991614,2cyclictest3487339-21kworker/u16:1+flush-8:020:13:526
7838991614,2cyclictest3487339-21kworker/u16:1+flush-8:019:38:446
7838991614,2cyclictest3487339-21kworker/u16:1+events_unbound19:55:346
7834991614,2cyclictest3487339-21kworker/u16:1+events_unbound19:48:595
7834991614,2cyclictest3487339-21kworker/u16:1+events_unbound19:48:595
7826991614,2cyclictest3487339-21kworker/u16:1+flush-8:020:08:514
7844991513,1cyclictest97868-21strings19:48:477
7844991513,1cyclictest97868-21strings19:48:477
7838991513,2cyclictest60110-21kworker/u16:3+flush-8:019:53:186
7838991513,2cyclictest60110-21kworker/u16:3+flush-8:019:53:186
7844991413,0cyclictest0-21swapper/722:22:177
7844991412,1cyclictest317019-21latency_hist21:38:237
7838991412,2cyclictest215453-21kworker/u16:1+flush-8:020:53:406
7826991412,2cyclictest98992-21kworker/u16:2+flush-8:019:53:464
7826991412,2cyclictest8030-21kworker/u16:0+flush-8:019:28:514
784499139,3cyclictest1302-21snmpd20:34:227
7844991312,0cyclictest0-21swapper/719:43:487
7826991311,2cyclictest3487339-21kworker/u16:1+flush-8:019:33:394
7826991311,2cyclictest215453-21kworker/u16:1+flush-8:020:53:524
784499128,3cyclictest1302-21snmpd20:41:467
784499120,10cyclictest112437-21cut19:58:407
7838991210,2cyclictest8030-21kworker/u16:0+events_unbound19:16:586
784499118,2cyclictest1302-21snmpd20:06:157
784499116,4cyclictest50050-21/usr/sbin/munin19:23:537
784499116,4cyclictest138822-21cat20:13:397
782699119,2cyclictest60110-21kworker/u16:3+flush-8:020:23:444
782699119,2cyclictest60110-21kworker/u16:3+events_unbound20:28:554
782699110,11cyclictest0-21swapper/420:51:274
783899108,2cyclictest8030-21kworker/u16:0+flush-8:019:10:576
78269997,2cyclictest215453-21kworker/u16:1+events_unbound20:58:514
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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