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2026-07-18 - 23:30
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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 Jul 18, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232830825520,30sleep70-21swapper/707:08:267
232818424636,7sleep50-21swapper/507:06:395
232830723221,8sleep60-21swapper/607:08:256
2328687993028,2cyclictest2920174-21kworker/u16:0+events_unbound12:05:106
2328693992913,14cyclictest3068283-21ssh12:30:057
2328683992924,4cyclictest2351775-21pool-gnome-soft07:18:335
2328681992925,3cyclictest2381516-21kworker/u16:4+events_unbound07:34:564
29699712280,1chrt2969941-21ssh11:50:077
2328683992826,2cyclictest2995604-21kworker/u16:2+events_unbound12:14:495
2328693992726,0cyclictest0-21swapper/708:15:117
2328693992625,0cyclictest0-21swapper/710:05:147
2328687992624,2cyclictest2751247-21kworker/u16:5+events_unbound12:29:556
2328683992624,2cyclictest2429468-21kworker/u16:2+flush-8:008:35:075
2328687992523,2cyclictest2488452-21kworker/u16:4+flush-8:009:15:106
2328687992523,2cyclictest2488452-21kworker/u16:4+flush-8:009:15:106
2328687992522,3cyclictest2785754-21kworker/u16:1+flush-8:011:19:586
2328687992522,3cyclictest2785754-21kworker/u16:1+flush-8:011:19:586
232821022513,8sleep40-21swapper/407:07:024
2328687992422,2cyclictest2429468-21kworker/u16:2+flush-8:009:19:486
2328687992420,3cyclictest2429468-21kworker/u16:2+events_unbound09:05:076
2328693992322,0cyclictest0-21swapper/709:55:247
2328693992321,1cyclictest0-21swapper/708:30:077
2328693992320,1cyclictest0-21swapper/710:40:067
232869399230,21cyclictest2351778-21packagekitd07:18:547
2328683992321,2cyclictest2995604-21kworker/u16:2+flush-8:012:10:125
2328683992321,2cyclictest2920174-21kworker/u16:0+events_unbound11:55:105
2328683992321,2cyclictest2574979-21kworker/u16:1+flush-8:010:14:525
2328683992321,2cyclictest2429468-21kworker/u16:2+flush-8:008:20:085
2328683992321,2cyclictest2429468-21kworker/u16:2+events_unbound08:30:125
2328693992221,0cyclictest0-21swapper/712:19:587
2328693992221,0cyclictest0-21swapper/711:09:487
2328687992220,2cyclictest2574979-21kworker/u16:1+flush-8:009:10:226
2328687992219,2cyclictest2625372-21kworker/u16:0+flush-8:009:44:426
2328683992220,2cyclictest2887194-21kworker/u16:2+flush-8:011:40:075
2328683992220,2cyclictest2488452-21kworker/u16:4+events_unbound11:10:175
2328681992219,2cyclictest2429468-21kworker/u16:2+flush-8:009:29:534
2328693992120,0cyclictest0-21swapper/709:15:247
2328693992120,0cyclictest0-21swapper/709:15:247
2328693992114,6cyclictest648-21systemd-journal11:49:417
2328683992119,2cyclictest2488452-21kworker/u16:4+events_unbound10:00:105
2328683992119,2cyclictest2429468-21kworker/u16:2+events_unbound09:15:195
2328683992119,2cyclictest2429468-21kworker/u16:2+events_unbound09:15:195
2328683992119,2cyclictest2400502-21kworker/u16:1+events_unbound07:44:385
2328693992019,0cyclictest0-21swapper/712:09:597
2328693992014,5cyclictest648-21systemd-journal09:09:417
2328687992018,2cyclictest3056475-21kworker/u16:0+events_unbound12:37:116
2328687992018,2cyclictest2625372-21kworker/u16:0+flush-8:010:25:156
2328683992018,2cyclictest2887194-21kworker/u16:2+flush-8:011:29:475
2328683992018,2cyclictest2887194-21kworker/u16:2+events_unbound11:37:515
2328683992018,2cyclictest2810424-21kworker/u16:2+flush-8:010:55:225
2328683992018,2cyclictest2785754-21kworker/u16:1+events_unbound10:50:235
2328683992018,2cyclictest2488452-21kworker/u16:4+flush-8:010:45:175
2328683992018,2cyclictest2488452-21kworker/u16:4+flush-8:010:44:365
2328683992018,2cyclictest2400502-21kworker/u16:1+events_unbound08:28:545
2328683992018,2cyclictest2371449-21kworker/u16:0+events_unbound07:51:115
2328693991918,0cyclictest0-21swapper/711:14:597
2328693991917,1cyclictest0-21swapper/707:44:427
2328687991917,2cyclictest2920174-21kworker/u16:0+events_unbound11:34:556
2328683991917,2cyclictest2751247-21kworker/u16:5+flush-8:012:28:555
2328683991917,2cyclictest2751247-21kworker/u16:5+flush-8:010:59:575
2328683991917,2cyclictest2625372-21kworker/u16:0+flush-8:009:40:065
2328683991917,2cyclictest2488452-21kworker/u16:4+flush-8:011:25:165
2328683991917,2cyclictest2488452-21kworker/u16:4+flush-8:009:55:075
2328683991917,2cyclictest2390157-21kworker/u16:5+events_unbound08:06:235
2328683991917,2cyclictest2351897-21kworker/u16:6+flush-8:007:20:075
2328681991915,3cyclictest2677173-21awk09:54:424
2328681991915,3cyclictest2488062-21latency_hist08:29:414
2328681991915,3cyclictest2429959-21cat07:59:424
2328693991817,0cyclictest0-21swapper/711:34:397
2328693991817,0cyclictest0-21swapper/709:27:307
2328693991817,0cyclictest0-21swapper/707:10:347
2328693991816,1cyclictest2985500-21ssh11:59:427
2328693991816,1cyclictest0-21swapper/710:45:127
2328687991816,2cyclictest2506431-21kworker/u16:5+flush-8:008:35:086
2328687991816,2cyclictest2264197-21kworker/u16:2+events_unbound07:34:596
2328683991816,2cyclictest2995604-21kworker/u16:2+events_unbound12:01:475
2328683991816,2cyclictest2309468-21kworker/u16:3+events_unbound07:46:205
2328683991816,2cyclictest2309279-21kworker/u16:1+events_unbound07:27:385
2328693991716,0cyclictest0-21swapper/707:50:117
2328693991715,1cyclictest0-21swapper/710:30:047
2328693991712,4cyclictest648-21systemd-journal09:44:367
232869399170,1cyclictest0-21swapper/708:45:067
2328687991714,2cyclictest0-21swapper/612:00:016
2328687991712,4cyclictest2813097-21cat10:49:416
2328687991712,4cyclictest2449307-21cat08:09:426
2328683991715,2cyclictest2920174-21kworker/u16:0+flush-8:012:09:185
2328683991715,2cyclictest2785754-21kworker/u16:1+flush-8:011:20:435
2328683991715,2cyclictest2785754-21kworker/u16:1+flush-8:011:20:435
2328683991715,2cyclictest2785754-21kworker/u16:1+flush-8:011:05:115
2328683991715,2cyclictest2785754-21kworker/u16:1+events_unbound11:15:125
2328683991715,2cyclictest2751247-21kworker/u16:5+flush-8:010:30:395
2328683991715,2cyclictest2574979-21kworker/u16:1+events_unbound10:08:015
2328683991715,2cyclictest2506431-21kworker/u16:5+flush-8:008:59:475
2328683991715,2cyclictest2446314-21kworker/u16:0+events_unbound08:43:125
2328683991715,2cyclictest2400502-21kworker/u16:1+events_unbound08:01:155
2328683991715,2cyclictest2309468-21kworker/u16:3+events_unbound07:11:565
25765592160,0sleep72576560-21sh09:11:407
2328693991614,1cyclictest2565953-21diskmemload12:35:557
2328693991614,1cyclictest0-21swapper/712:24:437
2328693991614,1cyclictest0-21swapper/712:17:197
232869399160,14cyclictest2858908-21ssh11:05:067
2328687991614,2cyclictest2726952-21kworker/u16:2+events_unbound10:30:066
2328687991614,2cyclictest2488452-21kworker/u16:4+flush-8:009:49:426
2328687991614,2cyclictest2488452-21kworker/u16:4+events_unbound11:30:076
2328687991614,2cyclictest2309468-21kworker/u16:3+events_unbound07:25:076
2328683991614,2cyclictest2785754-21kworker/u16:1+events_unbound10:37:065
2328683991614,2cyclictest2488452-21kworker/u16:4+flush-8:008:55:075
2328683991614,2cyclictest2466694-21kworker/u16:3+events_unbound09:34:005
2328683991614,2cyclictest2446314-21kworker/u16:0+events_unbound08:50:265
2328683991614,2cyclictest2400502-21kworker/u16:1+flush-8:007:54:595
2328683991614,2cyclictest2390157-21kworker/u16:5+events_unbound07:37:325
2328681991612,3cyclictest2985314-21cat11:59:364
2328681991612,3cyclictest2652469-21awk09:44:424
2328693991515,0cyclictest0-21swapper/712:00:077
2328693991514,0cyclictest0-21swapper/710:52:507
2328693991514,0cyclictest0-21swapper/709:47:597
2328693991514,0cyclictest0-21swapper/709:21:427
2328693991513,1cyclictest0-21swapper/711:41:597
232869399150,14cyclictest0-21swapper/707:25:057
2328687991513,2cyclictest2488452-21kworker/u16:4+flush-8:011:10:046
2328687991513,2cyclictest2488452-21kworker/u16:4+events_unbound10:10:066
2328687991512,2cyclictest2887194-21kworker/u16:2+flush-8:011:49:426
2328687991511,3cyclictest2546604-21cat08:59:416
2328683991513,2cyclictest2625372-21kworker/u16:0+events_unbound10:19:585
2328683991513,2cyclictest2488452-21kworker/u16:4+events_unbound10:10:195
2328683991513,2cyclictest2466694-21kworker/u16:3+events_unbound08:15:175
2328683991513,2cyclictest2446314-21kworker/u16:0+events_unbound08:10:355
2328683991513,2cyclictest2429468-21kworker/u16:2+events_unbound09:08:225
2328681991514,1cyclictest0-21swapper/412:39:314
2328681991513,2cyclictest2466694-21kworker/u16:3+flush-8:008:54:414
232868199150,1cyclictest2431373-21irqcore07:59:594
232868199150,1cyclictest0-21swapper/411:30:094
232868199150,1cyclictest0-21swapper/410:25:024
2328693991412,1cyclictest2701852-21turbostat10:04:427
2328693991412,1cyclictest0-21swapper/708:10:137
232869399140,1cyclictest0-21swapper/707:30:087
2328687991413,1cyclictest0-21swapper/611:06:166
2328687991413,1cyclictest0-21swapper/610:02:436
2328687991412,2cyclictest2625372-21kworker/u16:0+flush-8:009:59:376
232868799140,14cyclictest0-21swapper/612:11:236
232868799140,14cyclictest0-21swapper/611:55:566
2328683991412,2cyclictest3033428-21kworker/u16:1+flush-8:012:35:345
2328683991412,2cyclictest2625372-21kworker/u16:0+flush-8:010:25:105
2328683991412,2cyclictest2466694-21kworker/u16:3+flush-8:009:34:575
232868399140,14cyclictest0-21swapper/512:20:195
2328681991413,1cyclictest0-21swapper/412:31:194
2328681991413,1cyclictest0-21swapper/411:37:524
2328681991413,1cyclictest0-21swapper/409:48:274
2328681991413,1cyclictest0-21swapper/409:13:084
2328681991410,3cyclictest2351836-21pool-/usr/libex07:18:394
232868199140,1cyclictest0-21swapper/412:05:374
232868199140,1cyclictest0-21swapper/411:47:394
232868199140,1cyclictest0-21swapper/411:39:554
232868199140,14cyclictest0-21swapper/412:16:584
232868199140,14cyclictest0-21swapper/410:56:344
232868199140,14cyclictest0-21swapper/409:38:504
232868199140,14cyclictest0-21swapper/409:26:424
232868199140,14cyclictest0-21swapper/408:35:084
232868199140,13cyclictest0-21swapper/412:19:594
232869399138,4cyclictest1302-21snmpd11:00:167
2328693991312,0cyclictest0-21swapper/710:36:117
2328693991312,0cyclictest0-21swapper/710:20:007
2328693991312,0cyclictest0-21swapper/709:30:357
2328693991312,0cyclictest0-21swapper/708:04:447
2328693991311,1cyclictest1085-21runrttasks07:45:017
2328687991312,1cyclictest0-21swapper/612:17:036
2328687991312,1cyclictest0-21swapper/610:53:016
2328687991312,1cyclictest0-21swapper/609:40:206
2328687991312,1cyclictest0-21swapper/609:25:406
2328687991312,1cyclictest0-21swapper/608:50:126
2328687991311,2cyclictest2446314-21kworker/u16:0+events_unbound08:14:556
2328687991311,2cyclictest2429468-21kworker/u16:2+flush-8:008:30:136
2328687991311,1cyclictest2487251-21ps08:25:086
232868799130,13cyclictest0-21swapper/611:28:116
2328683991311,2cyclictest2887194-21kworker/u16:2+events_unbound11:50:055
2328683991311,2cyclictest2751247-21kworker/u16:5+flush-8:012:30:275
2328683991311,2cyclictest2466694-21kworker/u16:3+events_unbound09:24:185
2328683991311,2cyclictest2429468-21kworker/u16:2+flush-8:009:10:275
232868199139,3cyclictest2547684-21cat08:59:584
232868199139,3cyclictest2468635-21latency_hist08:19:414
2328681991312,1cyclictest0-21swapper/410:13:224
2328681991312,1cyclictest0-21swapper/410:04:134
2328681991312,1cyclictest0-21swapper/409:59:394
2328681991312,1cyclictest0-21swapper/409:16:084
2328681991312,1cyclictest0-21swapper/409:16:084
2328681991312,1cyclictest0-21swapper/407:46:534
232868199130,12cyclictest0-21swapper/411:49:554
232868199130,0cyclictest0-21swapper/408:44:174
232869399129,2cyclictest1302-21snmpd10:17:217
232869399128,3cyclictest1302-21snmpd09:00:117
232869399128,3cyclictest1302-21snmpd08:56:077
232869399128,3cyclictest1302-21snmpd08:39:557
232869399128,3cyclictest1302-21snmpd07:37:007
232869399125,6cyclictest6233-21gvfs-afc-volume10:13:137
232869399122,9cyclictest1256-21tuned-ppd08:34:427
2328693991211,0cyclictest0-21swapper/708:25:057
2328693991210,1cyclictest2933647-21ssh11:35:267
2328693991210,1cyclictest2636998-21ssh09:35:067
232869399120,10cyclictest2435764-21sshd08:00:027
2328687991211,1cyclictest0-21swapper/611:53:536
2328687991211,1cyclictest0-21swapper/611:40:286
2328687991211,1cyclictest0-21swapper/610:23:326
232868399128,3cyclictest2666074-21cat09:49:565
2328683991210,2cyclictest2466694-21kworker/u16:3+flush-8:009:29:275
2328683991210,2cyclictest2429468-21kworker/u16:2+events_unbound08:45:485
232868399120,12cyclictest0-21swapper/511:46:255
2328681991211,1cyclictest0-21swapper/411:03:114
2328681991211,1cyclictest0-21swapper/410:36:424
2328681991211,1cyclictest0-21swapper/410:15:534
2328681991211,1cyclictest0-21swapper/408:44:454
2328681991211,1cyclictest0-21swapper/408:31:024
232868199120,1cyclictest0-21swapper/408:06:364
232869399118,2cyclictest1302-21snmpd09:53:337
232869399117,3cyclictest1302-21snmpd11:22:357
232869399117,3cyclictest1302-21snmpd11:22:357
232869399117,3cyclictest1302-21snmpd08:50:167
232869399117,3cyclictest1302-21snmpd07:55:367
2328693991111,0cyclictest0-21swapper/712:09:327
2328693991110,0cyclictest0-21swapper/707:20:037
232869399110,10cyclictest1302-21snmpd08:20:527
232868799119,2cyclictest2664824-21kworker/u16:5+events_unbound10:07:106
232868799119,2cyclictest2390157-21kworker/u16:5+flush-8:008:00:136
2328687991110,1cyclictest0-21swapper/609:30:436
2328687991110,1cyclictest0-21swapper/608:21:026
2328687991110,1cyclictest0-21swapper/607:51:046
2328687991110,1cyclictest0-21swapper/607:16:526
232868799110,10cyclictest2404533-21grep07:45:026
232868399119,2cyclictest2574979-21kworker/u16:1+events_unbound09:44:515
232868399119,2cyclictest2309468-21kworker/u16:3+flush-8:007:29:455
232868199118,2cyclictest2599722-21needreboot09:20:044
2328681991110,1cyclictest0-21swapper/412:03:344
2328681991110,1cyclictest0-21swapper/410:43:194
2328681991110,1cyclictest0-21swapper/410:34:104
2328681991110,1cyclictest0-21swapper/410:06:444
2328681991110,1cyclictest0-21swapper/408:56:254
2328681991110,1cyclictest0-21swapper/408:20:194
232869399105,5cyclictest6233-21gvfs-afc-volume10:26:087
232869399105,4cyclictest2829982-21grep10:55:027
232869399100,9cyclictest1302-21snmpd11:27:387
232868799109,1cyclictest0-21swapper/610:18:586
232868799109,1cyclictest0-21swapper/609:37:496
232868799109,1cyclictest0-21swapper/607:13:426
232868799108,2cyclictest86-21ksoftirqd/607:29:596
232868799108,2cyclictest2446314-21kworker/u16:0+events_unbound08:10:006
232868799106,4cyclictest0-21swapper/610:57:356
232868799105,4cyclictest2849844-21latency_hist11:04:416
232868799104,5cyclictest0-21swapper/610:40:106
232868199109,1cyclictest0-21swapper/412:25:104
232868199102,7cyclictest0-21swapper/412:09:584
23286879997,2cyclictest86-21ksoftirqd/607:55:126
23286879996,2cyclictest2354760-21grep07:19:596
23286879996,2cyclictest0-21swapper/612:20:116
23286879993,5cyclictest0-21swapper/610:34:586
23286879990,8cyclictest3047788-21expr12:24:546
23286879990,3cyclictest2881760-21cut11:15:036
23286879990,2cyclictest2391366-21/usr/sbin/munin07:39:596
23286879990,1cyclictest0-21swapper/608:40:036
23286819998,1cyclictest0-21swapper/411:14:234
23286819998,1cyclictest0-21swapper/411:07:454
23286819998,1cyclictest0-21swapper/407:27:024
23286819996,2cyclictest6127-21pool-spawner11:18:334
23286879985,2cyclictest0-21swapper/608:44:556
23286879983,4cyclictest2550410-21cut09:00:026
23286819986,1cyclictest0-21swapper/410:19:584
23286819986,1cyclictest0-21swapper/407:50:024
23286819984,3cyclictest2803592-21grep10:45:004
23286819984,3cyclictest2561183-21cut09:05:014
23286819983,4cyclictest2888427-21irqcore11:19:584
23286819983,4cyclictest2888427-21irqcore11:19:584
23286819983,4cyclictest2394062-21cut07:40:004
23286819983,4cyclictest2355135-21cut07:19:594
23286819980,4cyclictest2911419-21munin-run11:29:414
23286819980,1cyclictest0-21swapper/407:30:014
23286819974,2cyclictest2813935-21fschecks_count10:49:564
23286819972,4cyclictest2449834-21cpuspeed_turbos08:09:564
23286819972,4cyclictest2329584-21tune2fs07:09:584
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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