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2026-07-18 - 09:45
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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 Sat Jul 18, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
341306225040,7sleep50-21swapper/519:05:485
35691082460,0sleep73569111-21cut20:25:057
341305424510,30sleep70-21swapper/719:05:417
341311023726,8sleep40-21swapper/419:06:274
341311223626,7sleep60-21swapper/619:06:296
38525972290,1chrt3852598-21kthreadcore22:30:067
3413612992623,2cyclictest4063042-21kworker/u16:1+flush-8:000:29:445
3413610992624,2cyclictest3659361-21kworker/u16:0+events_unbound21:30:324
3413615992523,2cyclictest3625216-21kworker/u16:2+events_unbound21:45:236
3413612992523,2cyclictest3625216-21kworker/u16:2+flush-8:023:20:145
3413612992523,2cyclictest3625216-21kworker/u16:2+flush-8:021:09:595
3413610992523,2cyclictest3773172-21kworker/u16:0+events_unbound22:13:144
3413618992422,1cyclictest4011871-21ssh23:35:147
3413618992422,1cyclictest4011871-21ssh23:35:147
3413610992422,2cyclictest3625216-21kworker/u16:2+flush-8:021:49:384
3413610992420,3cyclictest4099937-21cat00:14:434
36669002230,0chrt0-21swapper/621:15:046
3413618992322,0cyclictest0-21swapper/720:20:177
3413612992321,2cyclictest3808419-21kworker/u16:3+flush-8:023:09:495
3413610992321,2cyclictest3611170-21kworker/u16:1+events_unbound21:25:544
3413610992321,2cyclictest3611170-21kworker/u16:1+events_unbound21:25:544
3413618992221,0cyclictest0-21swapper/719:55:187
3413612992217,4cyclictest3878788-21kworker/u16:0+flush-8:022:54:435
3413618992116,4cyclictest4039282-21ssh23:49:437
3413618992115,5cyclictest648-21systemd-journal21:39:437
3413615992119,2cyclictest4063042-21kworker/u16:1+events_unbound00:23:546
3413615992119,2cyclictest3941880-21kworker/u16:4+events_unbound23:29:376
3413615992119,2cyclictest3659361-21kworker/u16:0+events_unbound21:26:066
3413615992119,2cyclictest3659361-21kworker/u16:0+events_unbound21:26:066
3413615992117,3cyclictest3723332-21cat21:39:436
3413612992119,2cyclictest4039411-21kworker/u16:0+flush-8:023:49:495
3413610992119,2cyclictest3773172-21kworker/u16:0+events_unbound22:08:544
3413610992119,2cyclictest3625216-21kworker/u16:2+flush-8:021:14:544
3413610992119,2cyclictest3611170-21kworker/u16:1+events_unbound21:57:554
3413610992119,2cyclictest3534115-21kworker/u16:0+flush-8:020:59:384
3413615992018,2cyclictest3625216-21kworker/u16:2+events_unbound22:53:496
3413612992018,2cyclictest3808419-21kworker/u16:3+flush-8:022:44:385
3413610992018,2cyclictest3941880-21kworker/u16:4+events_unbound23:19:374
3413610992018,2cyclictest3808419-21kworker/u16:3+events_unbound23:10:494
3413610992018,2cyclictest3808419-21kworker/u16:3+events_unbound22:51:594
3413610992018,2cyclictest3808419-21kworker/u16:3+events_unbound00:06:254
3413610992018,2cyclictest3659361-21kworker/u16:0+events_unbound21:35:584
3413610992018,2cyclictest3611170-21kworker/u16:1+events_unbound22:21:594
3413610992018,2cyclictest3443623-21kworker/u16:3+events_unbound19:25:144
3413618991915,3cyclictest3437980-21iostat_ios19:19:597
3413618991915,3cyclictest3437980-21iostat_ios19:19:597
3413618991915,3cyclictest1302-21snmpd19:29:267
3413615991917,2cyclictest3941880-21kworker/u16:4+events_unbound23:20:496
3413615991917,2cyclictest3917558-21kworker/u16:1+events_unbound23:04:476
3413615991917,2cyclictest3611170-21kworker/u16:1+events_unbound22:32:296
3413615991917,2cyclictest3611170-21kworker/u16:1+events_unbound22:12:506
3413612991915,3cyclictest3592257-21cat20:39:435
3413610991917,2cyclictest4063726-21kworker/u16:2+events_unbound00:38:044
3413610991917,2cyclictest4039411-21kworker/u16:0+events_unbound23:53:254
3413610991917,2cyclictest3941880-21kworker/u16:4+events_unbound23:59:214
3413610991917,2cyclictest3808419-21kworker/u16:3+events_unbound22:41:504
3413610991917,2cyclictest3773172-21kworker/u16:0+events_unbound22:15:214
3413610991917,2cyclictest3635573-21kworker/u16:3+events_unbound21:09:454
3413610991917,2cyclictest3625216-21kworker/u16:2+events_unbound23:32:344
3413610991917,2cyclictest3625216-21kworker/u16:2+events_unbound23:27:334
3413610991917,2cyclictest3611170-21kworker/u16:1+events_unbound22:30:574
3413610991915,3cyclictest3686973-21cat21:24:434
3413610991915,3cyclictest3686973-21cat21:24:434
3413618991815,2cyclictest1302-21snmpd00:16:197
3413618991813,4cyclictest648-21systemd-journal00:34:427
3413618991811,5cyclictest648-21systemd-journal00:04:437
3413615991816,2cyclictest3808419-21kworker/u16:3+events_unbound23:36:136
3413615991816,2cyclictest3808419-21kworker/u16:3+events_unbound23:36:136
3413615991816,2cyclictest3808419-21kworker/u16:3+events_unbound00:11:266
3413615991816,2cyclictest3625216-21kworker/u16:2+events_unbound22:18:506
3413615991816,2cyclictest3611170-21kworker/u16:1+events_unbound22:27:346
3413615991816,2cyclictest3534115-21kworker/u16:0+events_unbound20:09:576
3413615991816,2cyclictest3443623-21kworker/u16:3+events_unbound20:21:546
3413615991815,2cyclictest3660749-21sh21:11:326
3413612991816,2cyclictest3374830-21kworker/u16:4+flush-8:019:14:495
3413610991816,2cyclictest4137916-21kworker/u16:0+events_unbound00:33:334
3413610991816,2cyclictest4063042-21kworker/u16:1+events_unbound00:18:534
3413610991816,2cyclictest3941880-21kworker/u16:4+events_unbound23:47:454
3413610991816,2cyclictest3941880-21kworker/u16:4+events_unbound23:21:384
3413610991816,2cyclictest3808419-21kworker/u16:3+events_unbound22:27:434
3413610991816,2cyclictest3611170-21kworker/u16:1+events_unbound22:34:494
3413610991816,2cyclictest3611170-21kworker/u16:1+events_unbound21:51:134
3413618991716,0cyclictest0-21swapper/721:10:137
3413618991714,2cyclictest1302-21snmpd22:16:197
3413618991713,3cyclictest1302-21snmpd20:05:577
3413615991715,2cyclictest3941880-21kworker/u16:4+events_unbound00:31:106
3413615991715,2cyclictest3878788-21kworker/u16:0+events_unbound22:40:436
3413615991715,2cyclictest3625216-21kworker/u16:2+events_unbound21:57:226
3413615991715,2cyclictest3625216-21kworker/u16:2+events_unbound21:41:346
3413615991715,2cyclictest3611170-21kworker/u16:1+events_unbound22:38:056
3413615991715,2cyclictest3583367-21kworker/u16:4+events_unbound20:49:536
3413615991715,2cyclictest3443623-21kworker/u16:3+events_unbound20:16:436
3413615991715,2cyclictest1603462-21kworker/u16:0+events_unbound19:11:076
3413615991714,3cyclictest3625216-21kworker/u16:2+flush-8:023:10:386
3413612991714,2cyclictest3625216-21kworker/u16:2+flush-8:022:14:445
3413612991713,3cyclictest3625216-21kworker/u16:2+flush-8:022:14:445
3413610991715,2cyclictest4063042-21kworker/u16:1+events_unbound00:26:294
3413610991715,2cyclictest4063042-21kworker/u16:1+events_unbound00:03:374
3413610991715,2cyclictest3878788-21kworker/u16:0+events_unbound22:45:054
3413610991715,2cyclictest3808419-21kworker/u16:3+events_unbound23:01:344
3413610991715,2cyclictest3808419-21kworker/u16:3+events_unbound00:20:004
3413610991715,2cyclictest3625216-21kworker/u16:2+events_unbound23:37:124
3413610991715,2cyclictest3625216-21kworker/u16:2+events_unbound23:37:124
3413610991715,2cyclictest3625216-21kworker/u16:2+events_unbound22:58:264
3413610991715,2cyclictest3534115-21kworker/u16:0+flush-8:020:19:394
3413610991715,2cyclictest3534115-21kworker/u16:0+events_unbound20:20:594
3413615991615,1cyclictest3611170-21kworker/u16:1+events_unbound21:22:336
3413615991615,1cyclictest3611170-21kworker/u16:1+events_unbound21:22:336
3413615991614,2cyclictest3808419-21kworker/u16:3+events_unbound00:01:456
3413615991614,2cyclictest3625216-21kworker/u16:2+events_unbound22:57:346
3413615991614,2cyclictest3625216-21kworker/u16:2+events_unbound22:47:306
3413615991614,2cyclictest3625216-21kworker/u16:2+events_unbound22:22:466
3413615991614,2cyclictest3534115-21kworker/u16:0+events_unbound20:26:436
3413615991614,2cyclictest3443623-21kworker/u16:3+events_unbound19:56:146
3413615991614,2cyclictest3443623-21kworker/u16:3+events_unbound19:21:156
3413615991614,2cyclictest3443623-21kworker/u16:3+events_unbound19:21:156
3413615991614,2cyclictest1603462-21kworker/u16:0+events_unbound19:17:546
3413612991614,2cyclictest4063042-21kworker/u16:1+events_unbound00:25:425
3413612991614,2cyclictest3505110-21kworker/u16:1+flush-8:020:25:095
3413610991614,2cyclictest3808419-21kworker/u16:3+events_unbound23:43:294
3413610991614,2cyclictest3808419-21kworker/u16:3+events_unbound23:06:584
3413610991614,2cyclictest3773172-21kworker/u16:0+events_unbound22:02:504
3413610991613,2cyclictest3733199-21kworker/u16:3+flush-8:021:44:444
3413618991513,1cyclictest0-21swapper/720:55:077
3413618991513,1cyclictest0-21swapper/719:30:037
3413618991512,2cyclictest1302-21snmpd20:03:547
3413618991511,3cyclictest1302-21snmpd00:22:447
3413615991514,1cyclictest3808419-21kworker/u16:3+events_unbound23:02:506
3413615991513,2cyclictest5955-21gsd-housekeepin21:30:376
3413615991513,2cyclictest4063042-21kworker/u16:1+events_unbound00:25:386
3413615991513,2cyclictest3941880-21kworker/u16:4+events_unbound23:46:006
3413615991513,2cyclictest3808419-21kworker/u16:3+events_unbound23:32:016
3413615991513,2cyclictest3773172-21kworker/u16:0+events_unbound22:00:306
3413615991513,2cyclictest3635573-21kworker/u16:3+events_unbound21:07:556
3413615991513,2cyclictest3625216-21kworker/u16:2+events_unbound22:07:186
3413615991513,2cyclictest3534115-21kworker/u16:0+events_unbound20:30:556
3413615991512,2cyclictest5955-21gsd-housekeepin20:43:376
3413615991511,4cyclictest86-21ksoftirqd/600:38:366
3413612991512,2cyclictest3611170-21kworker/u16:1+flush-8:021:19:445
3413612991512,2cyclictest3611170-21kworker/u16:1+flush-8:021:19:445
3413610991513,2cyclictest3611170-21kworker/u16:1+events_unbound20:46:434
3413610991513,2cyclictest1603462-21kworker/u16:0+events_unbound19:11:194
3413610991513,1cyclictest3621225-21sh20:54:434
3413618991412,1cyclictest0-21swapper/723:49:437
3413618991412,1cyclictest0-21swapper/723:15:097
3413618991411,2cyclictest1302-21snmpd22:53:147
3413618991411,2cyclictest0-21swapper/719:40:037
341361899140,13cyclictest0-21swapper/723:31:057
3413615991412,2cyclictest3808419-21kworker/u16:3+events_unbound23:51:576
3413615991412,2cyclictest3808419-21kworker/u16:3+events_unbound00:17:416
3413615991412,2cyclictest3534115-21kworker/u16:0+events_unbound20:57:556
3413615991412,2cyclictest3505110-21kworker/u16:1+events_unbound20:06:596
3413615991412,2cyclictest3475865-21kworker/u16:2+events_unbound19:41:546
3413615991412,2cyclictest3443623-21kworker/u16:3+events_unbound20:38:156
3413615991412,2cyclictest3443623-21kworker/u16:3+events_unbound19:29:066
3413615991412,2cyclictest1603462-21kworker/u16:0+events_unbound19:46:556
341361599141,13cyclictest0-21swapper/623:55:156
3413612991413,1cyclictest3611170-21kworker/u16:1+flush-8:022:04:445
3413612991413,1cyclictest0-21swapper/522:59:425
3413612991412,2cyclictest3625216-21kworker/u16:2+flush-8:020:55:075
3413612991412,2cyclictest3611170-21kworker/u16:1+flush-8:021:55:275
3413612991412,2cyclictest3443623-21kworker/u16:3+flush-8:020:45:155
3413612991411,2cyclictest3505110-21kworker/u16:1+flush-8:019:55:105
341361299140,1cyclictest0-21swapper/500:38:055
341361299140,14cyclictest0-21swapper/522:33:415
341361299140,14cyclictest0-21swapper/522:24:145
341361299140,14cyclictest0-21swapper/521:53:005
3413610991412,2cyclictest3611170-21kworker/u16:1+events_unbound21:03:534
3413610991412,2cyclictest3505110-21kworker/u16:1+flush-8:020:25:234
341361899139,3cyclictest1302-21snmpd19:14:387
341361899137,5cyclictest5965-21gmain00:35:087
341361899136,6cyclictest6466-21gmain22:21:217
3413618991311,1cyclictest0-21swapper/720:45:047
341361899130,3cyclictest3734014-21ssh21:42:107
341361899130,12cyclictest0-21swapper/720:32:367
341361599139,2cyclictest86-21ksoftirqd/621:50:376
3413615991311,2cyclictest3808419-21kworker/u16:3+events_unbound23:40:216
3413615991311,2cyclictest3635573-21kworker/u16:3+events_unbound21:03:396
3413615991311,2cyclictest3374830-21kworker/u16:4+events_unbound20:01:196
3413615991311,2cyclictest3374830-21kworker/u16:4+events_unbound19:50:546
3413615991311,2cyclictest1603462-21kworker/u16:0+events_unbound19:37:136
3413612991312,1cyclictest0-21swapper/523:47:385
3413612991312,1cyclictest0-21swapper/523:39:075
3413612991312,1cyclictest0-21swapper/523:39:075
3413612991312,1cyclictest0-21swapper/523:28:335
3413612991312,1cyclictest0-21swapper/523:15:565
3413612991312,1cyclictest0-21swapper/523:04:165
3413612991312,1cyclictest0-21swapper/521:45:265
3413612991312,1cyclictest0-21swapper/521:42:275
3413612991312,1cyclictest0-21swapper/521:19:265
3413612991312,1cyclictest0-21swapper/500:06:145
341361299130,13cyclictest0-21swapper/522:48:405
341361299130,13cyclictest0-21swapper/519:31:165
341361299130,13cyclictest0-21swapper/500:13:485
341361299130,0cyclictest0-21swapper/523:55:405
341361299130,0cyclictest0-21swapper/523:44:385
3413610991312,1cyclictest0-21swapper/421:04:584
3413610991311,2cyclictest3443623-21kworker/u16:3+events_unbound19:59:534
3413610991311,2cyclictest3443623-21kworker/u16:3+events_unbound19:49:184
3413610991311,2cyclictest3374830-21kworker/u16:4+events_unbound19:33:554
3413610991311,2cyclictest1603462-21kworker/u16:0+events_unbound19:22:434
3413610991311,2cyclictest1603462-21kworker/u16:0+events_unbound19:22:434
3413610991310,2cyclictest5955-21gsd-housekeepin19:42:374
39225862120,0sleep73922588-21cut23:00:047
341361899129,2cyclictest1302-21snmpd22:05:497
341361899129,2cyclictest1302-21snmpd21:04:567
341361899129,2cyclictest1302-21snmpd19:48:307
341361899129,2cyclictest0-21swapper/723:20:107
341361899128,3cyclictest1302-21snmpd23:40:247
341361899128,3cyclictest1302-21snmpd21:03:237
341361899128,3cyclictest1302-21snmpd20:50:317
341361899128,3cyclictest1302-21snmpd00:07:377
341361899127,4cyclictest934-21dbus-daemon22:47:117
341361899127,4cyclictest3748850-21cat21:50:017
341361899127,4cyclictest3535005-21cat20:09:577
341361899120,3cyclictest3591447-21/usr/sbin/munin20:35:147
341361899120,2cyclictest3940842-21ssh23:07:537
341361899120,11cyclictest1302-21snmpd22:25:557
341361899120,11cyclictest1302-21snmpd22:00:287
3413615991211,1cyclictest0-21swapper/623:16:046
3413615991210,2cyclictest3611170-21kworker/u16:1+events_unbound20:46:396
3413615991210,2cyclictest3374830-21kworker/u16:4+events_unbound19:33:596
3413612991211,1cyclictest0-21swapper/522:27:425
3413612991211,1cyclictest0-21swapper/521:39:275
3413612991211,1cyclictest0-21swapper/520:34:395
3413612991211,1cyclictest0-21swapper/520:08:575
3413612991211,1cyclictest0-21swapper/519:20:235
3413612991211,1cyclictest0-21swapper/519:20:235
341361299120,1cyclictest0-21swapper/520:20:465
341361299120,1cyclictest0-21swapper/519:44:125
3413610991210,2cyclictest3583367-21kworker/u16:4+events_unbound20:42:534
3413610991210,2cyclictest3534115-21kworker/u16:0+events_unbound20:12:144
3413610991210,2cyclictest3374830-21kworker/u16:4+events_unbound19:36:554
341361099120,1cyclictest0-21swapper/420:35:484
341361099120,12cyclictest0-21swapper/419:53:044
34666462110,0sleep50-21swapper/519:34:555
341361899119,1cyclictest0-21swapper/720:15:127
341361899119,1cyclictest0-21swapper/700:09:577
341361899118,2cyclictest0-21swapper/722:39:587
341361899117,3cyclictest3700256-21cat21:29:597
341361899117,3cyclictest1302-21snmpd21:47:067
341361899116,4cyclictest3979649-21cat23:25:007
341361899116,4cyclictest3943156-21cat23:10:007
341361899116,4cyclictest1302-21snmpd21:19:507
341361899116,4cyclictest1302-21snmpd21:19:507
341361899115,5cyclictest6124-21gmain22:35:017
341361899113,7cyclictest3435869-21ntpq19:15:137
341361899112,7cyclictest3495387-21/usr/sbin/munin19:49:587
341361899110,3cyclictest3907384-21kthreadcore22:55:037
341361899110,10cyclictest4060974-21ssh23:55:217
341361899110,10cyclictest1302-21snmpd21:28:187
341361899110,10cyclictest1302-21snmpd21:28:187
3413615991110,1cyclictest841rcuc/600:04:476
341361299117,3cyclictest3456147-21cat19:29:395
3413612991110,1cyclictest0-21swapper/521:33:565
3413612991110,1cyclictest0-21swapper/521:02:145
341361299110,11cyclictest0-21swapper/521:06:205
341361299110,11cyclictest0-21swapper/520:41:165
341361299110,11cyclictest0-21swapper/520:16:415
341361299110,11cyclictest0-21swapper/519:11:055
341361099119,2cyclictest3505110-21kworker/u16:1+events_unbound20:30:034
341361099119,2cyclictest3443623-21kworker/u16:3+flush-8:019:55:344
341361099119,2cyclictest3443623-21kworker/u16:3+events_unbound20:06:434
341361099119,2cyclictest3374830-21kworker/u16:4+events_unbound19:14:484
341361899106,3cyclictest6124-21gmain21:54:457
341361899106,3cyclictest1302-21snmpd00:27:027
341361899105,4cyclictest3797477-21iostat_ios22:10:007
341361899105,4cyclictest3595455-21cut20:40:037
341361899100,9cyclictest1302-21snmpd19:37:207
341361299109,1cyclictest0-21swapper/523:08:515
341361299109,1cyclictest0-21swapper/522:06:065
341361299109,1cyclictest0-21swapper/520:49:575
341361299109,1cyclictest0-21swapper/520:14:385
341361299109,1cyclictest0-21swapper/519:50:215
341361299109,1cyclictest0-21swapper/500:16:485
341361299100,10cyclictest0-21swapper/500:22:445
34136189996,2cyclictest1302-21snmpd21:14:477
34136129998,1cyclictest0-21swapper/520:01:425
34136129987,1cyclictest0-21swapper/519:48:185
34136129987,1cyclictest0-21swapper/500:01:115
34136129976,1cyclictest0-21swapper/522:37:095
34136129976,1cyclictest0-21swapper/521:28:255
34136129976,1cyclictest0-21swapper/521:28:255
34136129960,4cyclictest0-21swapper/523:34:405
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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