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2026-07-11 - 10:28
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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 11, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
342048725140,8sleep40-21swapper/419:08:134
342057224837,8sleep60-21swapper/619:09:286
342054224434,7sleep50-21swapper/519:09:035
3420895994240,2cyclictest3927870-21kworker/u16:2+events_unbound23:50:135
34194812403,31sleep70-21swapper/719:05:127
3420895993836,2cyclictest3670818-21kworker/u16:5+events_unbound21:41:225
3420895993836,2cyclictest3670818-21kworker/u16:5+events_unbound21:41:225
3420895993735,2cyclictest4013178-21kworker/u16:3+events_unbound00:16:145
3420895993735,2cyclictest3878640-21kworker/u16:6+events_unbound22:46:385
3420895993735,2cyclictest3670818-21kworker/u16:5+events_unbound22:04:235
3420895993533,2cyclictest4013178-21kworker/u16:3+events_unbound00:02:185
3420895993533,2cyclictest3878640-21kworker/u16:6+events_unbound22:42:185
3420895993533,2cyclictest3829560-21kworker/u16:1+flush-8:000:34:425
3420895993533,2cyclictest3719951-21kworker/u16:1+events_unbound21:51:395
3420895993533,2cyclictest3670818-21kworker/u16:5+events_unbound22:07:585
3420895993432,2cyclictest4013178-21kworker/u16:3+events_unbound00:26:145
3420895993432,2cyclictest3768524-21kworker/u16:3+events_unbound22:11:185
3420895993432,2cyclictest3639067-21kworker/u16:2+flush-8:021:35:185
3420895993431,2cyclictest3829560-21kworker/u16:1+events_unbound23:34:495
3420895993331,2cyclictest3997799-21kworker/u16:0+events_unbound23:29:055
3420895993331,2cyclictest3997799-21kworker/u16:0+events_unbound00:09:455
3420895993331,2cyclictest3829560-21kworker/u16:1+events_unbound23:11:335
3420895993331,2cyclictest3802078-21kworker/u16:0+events_unbound22:39:055
37510912320,1chrt3751092-21kthreadcore21:45:047
3420895993230,2cyclictest3927870-21kworker/u16:2+events_unbound23:40:345
3420895993230,2cyclictest3768524-21kworker/u16:3+events_unbound22:34:295
3420895993229,2cyclictest3829560-21kworker/u16:1+events_unbound00:19:555
3420895993129,2cyclictest3829560-21kworker/u16:1+events_unbound23:34:135
3420895993129,2cyclictest3802078-21kworker/u16:0+flush-8:022:25:455
3420895993129,2cyclictest3670818-21kworker/u16:5+flush-8:021:48:515
3420895993129,2cyclictest3639067-21kworker/u16:2+flush-8:021:10:225
3420895993129,2cyclictest3639067-21kworker/u16:2+events_unbound21:27:335
3420895993129,2cyclictest3570735-21kworker/u16:3+events_unbound21:31:025
3420895993028,2cyclictest3878640-21kworker/u16:6+events_unbound23:02:495
3420895993028,2cyclictest3768524-21kworker/u16:3+events_unbound22:23:135
3420895993028,2cyclictest3768524-21kworker/u16:3+events_unbound22:23:135
39175702290,1chrt3917571-21kthreadcore22:55:017
3420895992927,2cyclictest4144880-21kworker/u16:2+flush-8:000:35:175
3420895992927,2cyclictest3997799-21kworker/u16:0+flush-8:023:46:295
3420895992927,2cyclictest3878640-21kworker/u16:6+flush-8:023:19:215
3420895992927,2cyclictest3878640-21kworker/u16:6+flush-8:022:58:475
3420895992927,2cyclictest3365835-21kworker/u16:0+events_unbound19:34:475
3420895992926,2cyclictest3445223-21kworker/u16:3+flush-8:020:04:455
3420895992826,2cyclictest3997799-21kworker/u16:0+flush-8:000:05:345
40611292270,0chrt4061130-21ssh23:53:357
39018402270,1chrt3901841-21ssh22:47:397
3420895992725,2cyclictest3768524-21kworker/u16:3+events_unbound22:17:515
3420895992725,2cyclictest3492842-21kworker/u16:4+events_unbound19:56:115
342090499260,24cyclictest3841730-21latency_hist22:24:437
342090499260,24cyclictest3841730-21latency_hist22:24:437
3420895992624,2cyclictest3997799-21kworker/u16:0+events_unbound23:55:085
3420895992624,2cyclictest3866438-21kworker/u16:4+events_unbound22:54:125
3420895992624,2cyclictest3551635-21kworker/u16:1+events_unbound20:21:425
3420895992624,2cyclictest3550252-21kworker/u16:0+events_unbound21:07:355
3420904992519,4cyclictest3817331-21latency_hist22:14:437
3420895992523,2cyclictest3878640-21kworker/u16:6+flush-8:023:05:225
3420895992523,2cyclictest3570735-21kworker/u16:3+events_unbound20:34:145
3420895992523,2cyclictest3492842-21kworker/u16:4+flush-8:019:52:585
3420895992523,2cyclictest3419355-21kworker/u16:1+events_unbound19:41:465
3420895992522,2cyclictest3878640-21kworker/u16:6+flush-8:023:19:515
3420895992422,2cyclictest3600198-21kworker/u16:1+events_unbound20:41:595
3420895992422,2cyclictest3570735-21kworker/u16:3+events_unbound21:22:565
3420895992422,2cyclictest3570735-21kworker/u16:3+events_unbound21:04:315
3420895992422,2cyclictest3570735-21kworker/u16:3+events_unbound21:04:315
3420895992422,2cyclictest3551635-21kworker/u16:1+events_unbound20:16:235
3420895992421,2cyclictest3492842-21kworker/u16:4+flush-8:019:44:465
3420892992421,3cyclictest3639067-21kworker/u16:2+flush-8:021:54:434
3420892992421,2cyclictest3829560-21kworker/u16:1+flush-8:000:24:524
3420904992317,5cyclictest648-21systemd-journal23:59:437
3420895992321,2cyclictest3719951-21kworker/u16:1+events_unbound21:59:075
3420895992321,2cyclictest3550252-21kworker/u16:0+flush-8:020:27:065
3420895992321,2cyclictest3365835-21kworker/u16:0+events_unbound19:34:265
3420895992220,2cyclictest3639067-21kworker/u16:2+events_unbound21:15:365
3420895992220,2cyclictest3570735-21kworker/u16:3+flush-8:020:39:035
3420895992220,2cyclictest3492842-21kworker/u16:4+events_unbound20:12:095
3420895992220,2cyclictest3445223-21kworker/u16:3+flush-8:020:00:445
3420895992220,2cyclictest3365835-21kworker/u16:0+events_unbound19:29:275
3420895992220,2cyclictest3365835-21kworker/u16:0+events_unbound19:29:275
3420895992119,2cyclictest3600198-21kworker/u16:1+events_unbound20:45:185
3420895992118,2cyclictest3419355-21kworker/u16:1+flush-8:019:09:595
3420892992118,2cyclictest4144880-21kworker/u16:2+flush-8:000:34:534
3420904992014,5cyclictest4124133-21cat00:19:587
3420895992018,2cyclictest2686190-21kworker/u16:2+events_unbound19:15:585
3420904991914,4cyclictest3792949-21latency_hist22:04:437
342090499190,2cyclictest3692033-21ssh21:20:067
3420895991917,2cyclictest3570735-21kworker/u16:3+flush-8:020:51:305
342090499180,16cyclictest3853999-21latency_hist22:29:437
3420904991714,2cyclictest1274-21snmpd19:18:177
3420904991714,1cyclictest3731810-21awk21:39:427
342090499170,1cyclictest0-21swapper/719:25:087
342090499170,1cyclictest0-21swapper/719:25:087
3420901991716,1cyclictest0-21swapper/622:00:176
3420895991715,2cyclictest3600198-21kworker/u16:1+events_unbound20:56:295
3420895991715,2cyclictest3445223-21kworker/u16:3+flush-8:019:20:175
3420904991611,4cyclictest3805175-21latency_hist22:09:437
342090499160,14cyclictest1081-21ntpd00:11:487
3420901991616,0cyclictest0-21swapper/622:41:596
342090499159,5cyclictest3648751-21latency_hist21:04:437
342090499159,5cyclictest3648751-21latency_hist21:04:437
342090499159,5cyclictest3453761-21latency_hist19:24:437
3420901991511,4cyclictest0-21swapper/622:34:166
3420892991513,2cyclictest3570735-21kworker/u16:3+flush-8:020:29:574
342089299150,14cyclictest0-21swapper/422:19:524
342089299150,14cyclictest0-21swapper/422:19:524
342090499148,5cyclictest5792-21JS14:27:237
3420904991411,2cyclictest0-21swapper/700:24:437
342090499140,1cyclictest0-21swapper/721:10:067
342090199148,6cyclictest0-21swapper/619:55:086
3420901991414,0cyclictest0-21swapper/623:37:386
3420901991413,1cyclictest3443136-21ldconfig19:15:076
3420901991413,1cyclictest0-21swapper/622:26:046
3420901991413,1cyclictest0-21swapper/622:13:466
3420901991413,1cyclictest0-21swapper/621:36:346
3420901991413,1cyclictest0-21swapper/621:25:506
342090199140,14cyclictest0-21swapper/623:51:506
342090199140,14cyclictest0-21swapper/623:32:366
342090199140,14cyclictest0-21swapper/623:16:316
342090199140,14cyclictest0-21swapper/623:11:286
342090199140,14cyclictest0-21swapper/621:55:006
342090199140,14cyclictest0-21swapper/600:38:016
3420892991413,1cyclictest0-21swapper/423:54:554
3420892991413,1cyclictest0-21swapper/423:33:014
3420892991413,1cyclictest0-21swapper/422:31:134
3420892991413,1cyclictest0-21swapper/419:40:004
3420892991413,1cyclictest0-21swapper/400:11:384
3420892991413,1cyclictest0-21swapper/400:04:144
3420892991412,2cyclictest3551635-21kworker/u16:1+flush-8:020:20:304
342089299140,14cyclictest0-21swapper/422:04:254
342089299140,14cyclictest0-21swapper/421:35:054
342090499139,3cyclictest1274-21snmpd23:27:437
342090499139,3cyclictest1274-21snmpd21:52:087
342090499139,3cyclictest1274-21snmpd21:32:027
342090499138,4cyclictest1274-21snmpd19:40:087
342090499138,4cyclictest1274-21snmpd19:33:387
342090499137,5cyclictest648-21systemd-journal20:29:437
342090499136,6cyclictest6064-21gmain21:28:417
3420904991310,2cyclictest0-21swapper/723:44:427
3420904991310,2cyclictest0-21swapper/700:29:437
342090499130,4cyclictest4171749-21rm00:39:417
3420901991312,1cyclictest0-21swapper/623:27:046
3420901991312,1cyclictest0-21swapper/621:47:176
3420901991312,1cyclictest0-21swapper/621:15:076
3420901991312,1cyclictest0-21swapper/621:12:556
3420901991311,2cyclictest3670818-21kworker/u16:5+flush-8:021:44:436
3420901991311,2cyclictest3670818-21kworker/u16:5+flush-8:021:44:436
342090199130,1cyclictest0-21swapper/623:22:026
342090199130,13cyclictest0-21swapper/623:05:576
342090199130,13cyclictest0-21swapper/623:00:266
342090199130,13cyclictest0-21swapper/600:26:126
342089299139,3cyclictest3768524-21kworker/u16:3+flush-8:022:15:374
3420892991312,1cyclictest0-21swapper/423:28:264
3420892991312,1cyclictest0-21swapper/422:42:054
3420892991312,1cyclictest0-21swapper/422:27:354
3420892991312,1cyclictest0-21swapper/422:12:084
3420892991312,1cyclictest0-21swapper/421:24:504
3420892991312,1cyclictest0-21swapper/421:17:164
3420892991312,1cyclictest0-21swapper/420:53:094
3420892991312,1cyclictest0-21swapper/419:35:544
3420892991312,1cyclictest0-21swapper/400:19:314
3420892991311,1cyclictest3668119-21awk21:10:114
342089299130,13cyclictest0-21swapper/422:59:354
342090499129,2cyclictest1274-21snmpd23:49:107
342090499129,2cyclictest1274-21snmpd23:06:577
342090499129,2cyclictest1274-21snmpd21:41:027
342090499129,2cyclictest1274-21snmpd21:41:027
342090499129,2cyclictest1274-21snmpd21:05:437
342090499129,2cyclictest1274-21snmpd20:22:397
342090499128,3cyclictest1274-21snmpd23:24:407
342090499128,3cyclictest1274-21snmpd20:44:017
342090499128,3cyclictest1274-21snmpd20:37:047
342090499128,3cyclictest1274-21snmpd20:02:187
342090499128,3cyclictest1274-21snmpd00:08:507
342090499127,4cyclictest3421664-21tune2fs19:09:567
342090499127,4cyclictest1274-21snmpd21:19:047
342090499125,6cyclictest648-21systemd-journal20:54:437
342090499125,6cyclictest6064-21gmain19:49:577
342090499120,11cyclictest1274-21snmpd20:08:127
342090499120,11cyclictest0-21swapper/720:31:217
342090499120,10cyclictest1274-21snmpd23:10:007
342090499120,10cyclictest1274-21snmpd20:57:197
342090199128,3cyclictest3552387-21cat20:14:576
342090199127,5cyclictest3997799-21kworker/u16:0-xprtiod00:06:506
342090199122,8cyclictest0-21swapper/600:22:006
3420901991211,1cyclictest841rcuc/622:21:586
3420901991211,1cyclictest841rcuc/622:21:586
3420901991211,1cyclictest0-21swapper/623:42:136
3420901991211,1cyclictest0-21swapper/622:54:266
3420901991211,1cyclictest0-21swapper/622:17:526
3420901991211,1cyclictest0-21swapper/621:20:296
342090199120,4cyclictest3527877-21kthreadcore20:00:036
342090199120,3cyclictest3586762-21grep20:30:036
342090199120,1cyclictest0-21swapper/620:50:316
342090199120,12cyclictest0-21swapper/622:48:276
342090199120,12cyclictest0-21swapper/620:26:436
3420892991211,1cyclictest0-21swapper/423:41:414
3420892991211,1cyclictest0-21swapper/423:04:384
3420892991211,1cyclictest0-21swapper/422:53:364
3420892991211,1cyclictest0-21swapper/421:54:484
342089299120,1cyclictest0-21swapper/419:57:494
342089299120,12cyclictest0-21swapper/419:49:094
342089299120,0cyclictest0-21swapper/422:34:504
342090499118,2cyclictest1274-21snmpd22:39:127
342090499117,3cyclictest6449-21gmain22:49:577
342090499117,3cyclictest1274-21snmpd23:02:337
342090499117,3cyclictest1274-21snmpd22:32:157
342090499117,3cyclictest1274-21snmpd20:15:487
342090499117,3cyclictest1274-21snmpd00:01:287
342090499116,4cyclictest6064-21gmain19:55:017
342090499116,4cyclictest3879557-21tune2fs22:39:577
342090499115,5cyclictest6240-21gvfs-afc-volume00:15:277
342090199116,5cyclictest0-21swapper/623:57:376
342090199115,4cyclictest201rcu_preempt23:45:126
342090199114,6cyclictest3708400-21forks21:29:596
342090199114,5cyclictest201rcu_preempt00:14:596
342090199114,5cyclictest201rcu_preempt00:12:366
342090199114,5cyclictest201rcu_preempt00:02:246
342090199113,6cyclictest201rcu_preempt22:05:506
342090199112,7cyclictest0-21swapper/621:51:416
3420901991110,1cyclictest3570735-21kworker/u16:3-events_unbound20:35:096
3420901991110,1cyclictest0-21swapper/622:37:536
3420901991110,1cyclictest0-21swapper/619:31:236
3420901991110,1cyclictest0-21swapper/619:25:026
3420901991110,1cyclictest0-21swapper/619:25:026
3420901991110,1cyclictest0-21swapper/619:22:146
342090199110,4cyclictest3497794-21kthreadcore19:45:056
342090199110,2cyclictest0-21swapper/621:00:096
342090199110,2cyclictest0-21swapper/621:00:096
342090199110,11cyclictest0-21swapper/620:05:366
342090199110,11cyclictest0-21swapper/619:44:386
342090199110,11cyclictest0-21swapper/619:13:066
342090199110,10cyclictest3478663-21kthreadcore19:35:036
342090199110,0cyclictest0-21swapper/619:53:186
342089299118,2cyclictest3527612-21kthreadcore20:00:034
3420892991110,1cyclictest0-21swapper/423:37:074
3420892991110,1cyclictest0-21swapper/421:39:584
3420892991110,1cyclictest0-21swapper/421:39:584
3420892991110,1cyclictest0-21swapper/420:41:574
3420892991110,1cyclictest0-21swapper/419:53:144
3420892991110,1cyclictest0-21swapper/419:23:084
342089299110,1cyclictest0-21swapper/419:30:114
342089299110,11cyclictest0-21swapper/421:01:404
342089299110,11cyclictest0-21swapper/421:01:404
342090499107,2cyclictest1274-21snmpd21:56:387
342090499107,2cyclictest0-21swapper/723:14:597
342090499106,3cyclictest935-21NetworkManager22:15:177
342090499106,3cyclictest1274-21snmpd20:46:107
342090499106,3cyclictest1274-21snmpd20:11:487
342090499104,4cyclictest3480184-21grep19:35:037
342090499100,9cyclictest1274-21snmpd23:37:587
342090199109,1cyclictest0-21swapper/620:20:256
342090199108,1cyclictest0-21swapper/620:10:076
342090199105,1cyclictest0-21swapper/620:54:546
342090199101,4cyclictest86-21ksoftirqd/621:04:596
342090199100,4cyclictest86-21ksoftirqd/622:55:076
342090199100,4cyclictest3601028-21tune2fs20:39:576
342090199100,2cyclictest86-21ksoftirqd/600:30:386
342089299109,1cyclictest0-21swapper/423:45:474
342089299109,1cyclictest0-21swapper/423:14:154
342089299109,1cyclictest0-21swapper/422:47:364
342089299109,1cyclictest0-21swapper/421:07:304
342089299109,1cyclictest0-21swapper/420:08:414
342089299100,0cyclictest0-21swapper/420:55:504
34209049995,3cyclictest1274-21snmpd19:47:097
34209019990,8cyclictest3612583-21cut20:45:016
34208929998,1cyclictest0-21swapper/423:23:244
34208929998,1cyclictest0-21swapper/423:18:494
34208929998,1cyclictest0-21swapper/422:08:024
34208929998,1cyclictest0-21swapper/420:47:194
34208929998,1cyclictest0-21swapper/419:27:424
34208929998,1cyclictest0-21swapper/419:27:424
34208929994,4cyclictest3436918-21cut19:15:014
34208929987,1cyclictest0-21swapper/423:49:534
34208929987,1cyclictest0-21swapper/423:09:124
34208929987,1cyclictest0-21swapper/419:13:594
34208929983,4cyclictest3551701-21grep20:14:544
34208929983,4cyclictest3546979-21tr20:10:084
34208929975,1cyclictest0-21swapper/421:29:574
34208929974,2cyclictest3683380-21cpu21:19:544
34208929973,3cyclictest3571186-21cat20:24:544
34208929972,4cyclictest3595474-21kthreadcore20:35:024
34208929965,1cyclictest0-21swapper/421:44:524
34208929964,1cyclictest0-21swapper/400:05:424
34208929950,1cyclictest0-21swapper/400:29:484
34208929950,1cyclictest0-21swapper/400:19:474
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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