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2026-08-14 - 01:48
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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 Fri Aug 14, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
394721421000,1sleep73947215-21cut21:28:247
38953582970,1sleep73895357-21kthreadcore21:08:217
39099192950,0sleep50-21swapper/521:13:245
37023862550,1sleep60-21swapper/619:28:206
3654238995350,2cyclictest95917-21kworker/u16:1+flush-8:023:57:596
3654237995250,2cyclictest4066197-21kworker/u16:4+events_unbound22:28:265
3654237995048,2cyclictest4082868-21kworker/u16:0+flush-8:022:53:265
365380125040,7sleep40-21swapper/419:05:434
36493602431,31sleep70-21swapper/719:03:227
3654237994240,2cyclictest3784775-21kworker/u16:1+flush-8:022:08:155
3654237994239,2cyclictest4082868-21kworker/u16:0+events_unbound22:43:175
3654237994139,2cyclictest3961908-21kworker/u16:3+events_unbound21:38:285
3654243994036,3cyclictest3842883-21cat20:43:007
3654237994038,2cyclictest4066197-21kworker/u16:4+events_unbound22:23:315
3654237994038,2cyclictest3927118-21kworker/u16:2+events_unbound21:58:325
3654237994038,2cyclictest3813463-21kworker/u16:3+events_unbound20:28:305
3654237994038,2cyclictest3735800-21kworker/u16:2+events_unbound20:23:255
3654237994038,2cyclictest3687052-21kworker/u16:0+flush-8:019:53:245
3654237994038,2cyclictest3687052-21kworker/u16:0+events_unbound20:33:255
3654237994037,2cyclictest4154351-21kworker/u16:1+flush-8:022:58:175
3654237993937,2cyclictest4189803-21kworker/u16:1+events_unbound23:31:225
3654237993937,2cyclictest3882043-21kworker/u16:0+flush-8:021:03:255
3654237993937,2cyclictest3784775-21kworker/u16:1+events_unbound20:48:135
365390323929,7sleep50-21swapper/519:07:135
3654237993836,2cyclictest3813463-21kworker/u16:3+events_unbound21:23:295
3654243993735,1cyclictest3987796-21ssh21:47:597
3654237993735,2cyclictest3597852-21kworker/u16:4+flush-8:019:18:255
3654237993734,2cyclictest95917-21kworker/u16:1+events_unbound00:30:115
3654237993634,2cyclictest4189803-21kworker/u16:1+events_unbound23:35:385
3654237993634,2cyclictest4095189-21kworker/u16:1+events_unbound22:42:205
3654237993634,2cyclictest4025246-21kworker/u16:0+events_unbound22:04:265
3654237993533,2cyclictest82634-21kworker/u16:2+events_unbound00:05:145
3654237993533,2cyclictest4120832-21kworker/u16:2+flush-8:023:03:295
3654237993533,2cyclictest4082868-21kworker/u16:0+events_unbound23:45:425
3654237993533,2cyclictest4082868-21kworker/u16:0+events_unbound23:25:185
3654237993533,2cyclictest3986500-21kworker/u16:3+flush-8:022:18:275
3654237993533,2cyclictest3927118-21kworker/u16:2+events_unbound21:55:345
3654237993533,2cyclictest3784775-21kworker/u16:1+events_unbound21:44:145
3654237993533,2cyclictest3687052-21kworker/u16:0+events_unbound19:43:315
3654237993532,2cyclictest3735800-21kworker/u16:2+events_unbound20:13:145
3654243993433,0cyclictest0-21swapper/700:22:547
3654237993432,2cyclictest4082868-21kworker/u16:0+events_unbound22:49:075
3654237993432,2cyclictest4025246-21kworker/u16:0+events_unbound22:13:315
3654237993431,2cyclictest3813463-21kworker/u16:3+events_unbound20:58:135
3654237993331,2cyclictest83842-21kworker/u16:4+events_unbound23:50:195
3654237993331,2cyclictest4193048-21kworker/u16:3+events_unbound00:11:235
3654237993331,2cyclictest4082868-21kworker/u16:0+events_unbound23:17:025
3654237993331,2cyclictest4082868-21kworker/u16:0+events_unbound00:24:535
3654237993331,2cyclictest3986500-21kworker/u16:3+events_unbound22:37:335
3654237993331,2cyclictest3927118-21kworker/u16:2+events_unbound21:22:325
3654237993331,2cyclictest3735800-21kworker/u16:2+events_unbound20:22:035
3654237993330,3cyclictest4082868-21kworker/u16:0+flush-8:023:59:295
3654237993330,2cyclictest4193048-21kworker/u16:3+events_unbound00:13:155
467462320,1chrt46747-21sh23:31:517
365424399320,30cyclictest203881-21latency_hist00:37:597
3654237993230,2cyclictest95917-21kworker/u16:1+events_unbound00:37:315
3654237993230,2cyclictest4189803-21kworker/u16:1+events_unbound23:19:345
3654237993230,2cyclictest4189803-21kworker/u16:1+events_unbound23:12:505
3654237993230,2cyclictest3813463-21kworker/u16:3+flush-8:021:28:225
36537342328,7sleep60-21swapper/619:04:496
365424399310,29cyclictest4120344-21latency_hist22:42:597
3654237993129,2cyclictest4193048-21kworker/u16:3+flush-8:023:38:275
3654237993028,2cyclictest3711611-21kworker/u16:1+flush-8:019:33:285
3654237993028,2cyclictest3654460-21kworker/u16:3+flush-8:019:38:255
3654243992923,5cyclictest648-21systemd-journal19:47:597
3654237992927,2cyclictest3927118-21kworker/u16:2+events_unbound21:35:155
3654237992927,2cyclictest3813463-21kworker/u16:3+flush-8:020:43:145
3654237992927,2cyclictest3774594-21kworker/u16:3+flush-8:020:08:205
3654238992826,2cyclictest3986500-21kworker/u16:3+flush-8:021:52:356
3654238992826,2cyclictest3986500-21kworker/u16:3+flush-8:021:52:356
3654237992826,2cyclictest4082868-21kworker/u16:0+events_unbound00:21:065
3654237992826,2cyclictest3813463-21kworker/u16:3+events_unbound21:11:515
39967932270,1chrt3996792-21missed_timers21:48:287
39967932270,1chrt3996792-21missed_timers21:48:287
3654243992722,4cyclictest83423-21latency_hist23:47:597
3654237992725,2cyclictest95917-21kworker/u16:1+events_unbound23:55:205
3654243992625,0cyclictest0-21swapper/720:08:317
3654243992621,4cyclictest143682-21latency_hist00:12:597
3654237992624,2cyclictest3597852-21kworker/u16:4+flush-8:019:23:195
3654237992522,2cyclictest3687052-21kworker/u16:0+events_unbound19:58:035
3654237992422,2cyclictest3852841-21kworker/u16:4+events_unbound20:54:045
3654237992422,2cyclictest3784775-21kworker/u16:1+events_unbound20:42:115
3654237992422,2cyclictest3711611-21kworker/u16:1+flush-8:020:03:205
3654233992422,2cyclictest4189803-21kworker/u16:1+flush-8:023:38:254
3654233992321,2cyclictest3986500-21kworker/u16:3+flush-8:022:29:114
3654237992220,2cyclictest3654460-21kworker/u16:3+events_unbound19:09:145
3654243992118,2cyclictest155738-21latency_hist00:17:597
3654243992116,4cyclictest3927514-21latency_hist21:23:007
365424399210,19cyclictest180989-21ssh00:28:147
3654243992019,0cyclictest0-21swapper/700:07:397
3654243992016,3cyclictest4025111-21/usr/sbin/munin22:03:147
365424399200,18cyclictest12425-21cut23:18:147
3654237992018,2cyclictest3927118-21kworker/u16:2+events_unbound21:48:145
3654237992018,2cyclictest3927118-21kworker/u16:2+events_unbound21:48:145
3654237992018,2cyclictest3735800-21kworker/u16:2+flush-8:019:48:335
3654237992018,2cyclictest3654460-21kworker/u16:3+events_unbound19:28:195
3654237991917,2cyclictest3654460-21kworker/u16:3+events_unbound19:17:125
39799542170,0sleep60-21swapper/621:43:226
3654243991712,4cyclictest4023923-21latency_hist22:03:007
3654243991711,5cyclictest3963736-21latency_hist21:38:007
3654233991716,1cyclictest3927118-21kworker/u16:2+events_unbound21:45:544
3654233991714,2cyclictest3813463-21kworker/u16:3+flush-8:021:12:594
3654243991513,1cyclictest3937411-21ssh21:23:437
3654243991513,1cyclictest0-21swapper/723:53:187
3654243991512,2cyclictest0-21swapper/722:27:597
365424399150,13cyclictest4060048-21turbostat22:17:597
365424399150,13cyclictest3825193-21cat20:33:177
365423399150,1cyclictest0-21swapper/400:15:004
365423399150,15cyclictest0-21swapper/400:23:024
3654243991411,2cyclictest4096342-21sed22:32:597
3654233991413,1cyclictest0-21swapper/423:43:184
3654233991413,1cyclictest0-21swapper/422:48:364
365423399140,1cyclictest0-21swapper/420:38:034
365423399140,1cyclictest0-21swapper/419:20:014
365423399140,14cyclictest0-21swapper/423:49:274
365423399140,14cyclictest0-21swapper/420:03:224
365424399139,3cyclictest1302-21snmpd23:48:487
365424399139,3cyclictest1302-21snmpd23:26:267
365424399139,3cyclictest1302-21snmpd19:58:067
365424399138,4cyclictest4097491-21cat22:33:157
365424399138,4cyclictest3863372-21cat20:53:147
365424399138,4cyclictest3804806-21tune2fs20:23:137
365424399130,11cyclictest4037222-21cat22:08:167
365424399130,11cyclictest3664224-21munin-node19:13:047
365424399130,11cyclictest1302-21snmpd22:48:137
3654238991312,1cyclictest0-21swapper/623:08:186
3654238991312,1cyclictest0-21swapper/622:08:246
365423899130,1cyclictest0-21swapper/621:20:006
365423899130,13cyclictest0-21swapper/623:28:206
365423899130,13cyclictest0-21swapper/621:58:096
365423899130,13cyclictest0-21swapper/621:54:036
365423899130,10cyclictest0-21swapper/620:15:046
3654233991312,1cyclictest0-21swapper/423:23:454
3654233991312,1cyclictest0-21swapper/419:34:024
3654233991312,1cyclictest0-21swapper/400:33:364
3654233991310,2cyclictest3986500-21kworker/u16:3+flush-8:022:37:594
365423399130,13cyclictest0-21swapper/423:04:034
365423399130,13cyclictest0-21swapper/420:37:544
365423399130,0cyclictest0-21swapper/422:54:164
365423399130,0cyclictest0-21swapper/422:26:414
365423399130,0cyclictest0-21swapper/420:18:114
365424399129,2cyclictest1302-21snmpd22:46:317
365424399129,2cyclictest1302-21snmpd00:23:347
365424399128,3cyclictest6124-21gmain21:03:187
365424399128,3cyclictest1302-21snmpd23:40:087
365424399128,3cyclictest1302-21snmpd23:17:567
365424399128,3cyclictest1302-21snmpd23:08:027
365424399128,3cyclictest1302-21snmpd21:13:327
365424399128,3cyclictest1302-21snmpd21:01:227
365424399128,3cyclictest1302-21snmpd20:51:317
365424399128,3cyclictest1302-21snmpd20:04:157
365424399128,3cyclictest1302-21snmpd19:53:537
365424399120,2cyclictest3725158-21ntp_states19:38:267
365424399120,2cyclictest3678643-21iostat_ios19:18:167
365424399120,11cyclictest4011498-21ssh21:57:117
365424399120,11cyclictest1302-21snmpd23:03:297
3654238991211,1cyclictest0-21swapper/623:06:446
3654238991211,1cyclictest0-21swapper/622:50:586
3654238991210,2cyclictest3711611-21kworker/u16:1+events_unbound19:42:456
365423899120,12cyclictest0-21swapper/623:43:006
365423899120,12cyclictest0-21swapper/623:02:006
365423899120,12cyclictest0-21swapper/622:04:186
365423899120,12cyclictest0-21swapper/621:11:486
3654233991211,1cyclictest0-21swapper/423:58:084
3654233991211,1cyclictest0-21swapper/423:29:264
3654233991211,1cyclictest0-21swapper/421:34:014
3654233991211,1cyclictest0-21swapper/400:08:514
365423399120,1cyclictest0-21swapper/420:59:584
365423399120,12cyclictest0-21swapper/419:16:234
365424399119,1cyclictest0-21swapper/722:18:297
365424399118,2cyclictest1302-21snmpd23:36:267
365424399118,2cyclictest1302-21snmpd20:19:307
365424399118,2cyclictest0-21swapper/723:58:167
365424399117,3cyclictest1302-21snmpd22:53:017
365424399117,3cyclictest1302-21snmpd19:33:567
365424399117,3cyclictest1302-21snmpd19:24:357
365424399110,10cyclictest1302-21snmpd20:46:287
365424399110,10cyclictest1302-21snmpd20:28:427
365423899118,3cyclictest4082868-21kworker/u16:0+flush-8:023:23:096
365423899118,2cyclictest5860-21xdg-desktop-por19:19:336
365423899118,2cyclictest1074-21lldpd23:35:496
365423899116,4cyclictest3655240-21cat19:08:156
3654238991110,1cyclictest0-21swapper/622:57:166
3654238991110,1cyclictest0-21swapper/622:38:596
3654238991110,1cyclictest0-21swapper/621:17:576
3654238991110,1cyclictest0-21swapper/621:07:426
3654238991110,1cyclictest0-21swapper/620:59:586
3654238991110,1cyclictest0-21swapper/619:53:176
3654238991110,1cyclictest0-21swapper/619:51:146
3654238991110,1cyclictest0-21swapper/600:16:166
365423899110,11cyclictest0-21swapper/620:24:396
3654233991110,1cyclictest0-21swapper/422:58:224
3654233991110,1cyclictest0-21swapper/422:39:564
3654233991110,1cyclictest0-21swapper/422:18:294
3654233991110,1cyclictest0-21swapper/422:09:204
3654233991110,1cyclictest0-21swapper/421:59:154
3654233991110,1cyclictest0-21swapper/421:27:244
3654233991110,1cyclictest0-21swapper/419:55:384
3654233991110,1cyclictest0-21swapper/419:45:524
365423399110,11cyclictest0-21swapper/420:31:264
365423399110,11cyclictest0-21swapper/420:11:054
365423399110,11cyclictest0-21swapper/419:28:504
40833652100,1sleep6841rcuc/622:26:266
365424399108,1cyclictest0-21swapper/721:38:297
365424399107,2cyclictest1302-21snmpd19:11:527
365424399106,3cyclictest3785570-21cat20:13:167
365424399105,4cyclictest3736204-21grep19:48:127
365424399100,9cyclictest1302-21snmpd19:28:177
365424399100,8cyclictest4157228-21expr22:58:107
365423899109,1cyclictest0-21swapper/623:17:186
365423899109,1cyclictest0-21swapper/622:35:216
365423899109,1cyclictest0-21swapper/620:53:496
365423899109,1cyclictest0-21swapper/620:00:326
365423899109,1cyclictest0-21swapper/600:35:116
365423899100,10cyclictest0-21swapper/623:20:096
365423899100,0cyclictest0-21swapper/619:45:336
365423399109,1cyclictest0-21swapper/422:04:184
365423399109,1cyclictest0-21swapper/421:54:124
365423399109,1cyclictest0-21swapper/421:38:364
365423399109,1cyclictest0-21swapper/421:18:444
365423399109,1cyclictest0-21swapper/421:13:414
365423399109,1cyclictest0-21swapper/419:41:464
36542389998,1cyclictest0-21swapper/620:43:346
36542389998,1cyclictest0-21swapper/619:17:296
36542389998,1cyclictest0-21swapper/600:31:056
36542389997,2cyclictest86-21ksoftirqd/622:22:556
36542389997,2cyclictest86-21ksoftirqd/621:34:166
36542389997,2cyclictest86-21ksoftirqd/600:11:426
36542389997,2cyclictest3774594-21kworker/u16:3+flush-8:020:08:066
36542389996,2cyclictest86-21ksoftirqd/622:43:476
36542389995,3cyclictest69261-21taskset23:38:476
36542389990,9cyclictest0-21swapper/622:28:596
36542389990,9cyclictest0-21swapper/621:39:406
36542339998,1cyclictest0-21swapper/419:49:584
36542339998,1cyclictest0-21swapper/400:28:334
36542389987,1cyclictest0-21swapper/620:33:196
36542389986,2cyclictest86-21ksoftirqd/622:15:006
36542389986,2cyclictest86-21ksoftirqd/600:26:416
36542389986,2cyclictest86-21ksoftirqd/600:05:046
36542389980,8cyclictest0-21swapper/621:28:066
36542389980,5cyclictest0-21swapper/623:49:556
36542389980,1cyclictest681rcuog/423:58:006
36542339987,1cyclictest0-21swapper/423:37:104
36542339987,1cyclictest0-21swapper/420:51:184
36542339987,1cyclictest0-21swapper/419:12:454
36542389976,1cyclictest0-21swapper/620:18:306
36542389975,2cyclictest86-21ksoftirqd/620:38:246
36542389971,1cyclictest0-21swapper/621:23:076
36542389971,1cyclictest0-21swapper/600:18:236
36542389970,7cyclictest0-21swapper/620:03:226
36542389970,1cyclictest0-21swapper/619:23:266
36542339976,1cyclictest0-21swapper/423:54:024
36542339976,1cyclictest0-21swapper/423:20:084
36542339976,1cyclictest0-21swapper/423:12:534
36542339976,1cyclictest0-21swapper/400:20:314
36542339975,2cyclictest5840-21JS17:17:144
36542339975,2cyclictest5840-21JS17:17:144
36542339974,2cyclictest3950117-21taskset21:29:584
36542339974,2cyclictest1311072sleep400:06:504
4130928260,1sleep40-21swapper/422:45:084
36542389960,6cyclictest0-21swapper/619:33:276
36542389960,5cyclictest0-21swapper/620:48:066
36542389960,1cyclictest0-21swapper/620:28:266
36542339965,1cyclictest0-21swapper/423:16:304
36542339963,2cyclictest38050482sleep420:23:164
36542339963,2cyclictest1074-21lldpd20:55:494
36542339960,1cyclictest0-21swapper/420:47:454
36542339951,1cyclictest681rcuog/422:13:504
36542339950,5cyclictest0-21swapper/419:58:064
36542339950,4cyclictest3886412-21chrt21:03:214
36542339950,4cyclictest3785300-21chrt20:13:134
36542339950,1cyclictest0-21swapper/419:23:084
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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