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2026-04-30 - 19:57
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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 all highest latencies:
System rack0slot2.osadl.org (updated Thu Apr 30, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330352825023,8sleep40-21swapper/407:07:554
35510832460,0sleep73551084-21sh09:15:297
3303899994442,2cyclictest3291645-21kworker/u16:2+flush-8:007:54:275
33033682413,32sleep70-21swapper/707:05:417
3303895993935,3cyclictest3565241-21kworker/u16:4+events_unbound10:04:284
3303899993836,2cyclictest3855124-21kworker/u16:2+events_unbound11:57:595
3303899993836,2cyclictest3855124-21kworker/u16:2+events_unbound11:57:595
3303899993836,2cyclictest3855124-21kworker/u16:2+events_unbound11:49:475
330333023811,7sleep50-21swapper/507:05:075
3303899993735,2cyclictest3855124-21kworker/u16:2+events_unbound11:28:285
3303899993735,2cyclictest3565241-21kworker/u16:4+events_unbound12:33:515
3303899993735,2cyclictest3565241-21kworker/u16:4+events_unbound11:22:235
3303899993735,2cyclictest3500187-21kworker/u16:1+events_unbound10:59:555
3303899993735,2cyclictest3500187-21kworker/u16:1+events_unbound10:27:035
3303899993735,2cyclictest3432636-21kworker/u16:2+events_unbound09:12:475
3303905993631,4cyclictest635-21systemd-journal10:31:577
3303899993634,2cyclictest3953315-21kworker/u16:0+events_unbound12:34:555
3303899993634,2cyclictest3953315-21kworker/u16:0+events_unbound12:34:555
3303899993634,2cyclictest3855124-21kworker/u16:2+events_unbound12:07:045
3303899993634,2cyclictest3747447-21kworker/u16:0+events_unbound10:45:235
3303899993634,2cyclictest3565241-21kworker/u16:4+events_unbound10:08:115
3303899993634,2cyclictest3500187-21kworker/u16:1+events_unbound12:14:345
3303899993634,2cyclictest3500187-21kworker/u16:1+events_unbound12:03:185
3303899993634,2cyclictest3500187-21kworker/u16:1+events_unbound10:37:465
3303899993634,2cyclictest3500187-21kworker/u16:1+events_unbound09:41:445
3303899993634,2cyclictest3481738-21kworker/u16:3+flush-8:009:24:435
3303905993530,4cyclictest3500007-21latency_hist08:53:587
3303899993533,2cyclictest3747447-21kworker/u16:0+events_unbound11:18:565
3303899993533,2cyclictest3747447-21kworker/u16:0+events_unbound11:18:565
3303899993533,2cyclictest3565241-21kworker/u16:4+events_unbound12:24:595
3303899993533,2cyclictest3565241-21kworker/u16:4+events_unbound10:11:525
3303899993533,2cyclictest3500187-21kworker/u16:1+events_unbound11:32:195
3303899993533,2cyclictest3500187-21kworker/u16:1+events_unbound10:42:275
3303899993533,2cyclictest3500187-21kworker/u16:1+events_unbound09:32:005
3303899993533,2cyclictest3500187-21kworker/u16:1+events_unbound09:15:175
3303905993430,3cyclictest124-21kswapd010:58:257
3303901993431,2cyclictest3747447-21kworker/u16:0+flush-8:010:44:136
3303899993432,2cyclictest3855124-21kworker/u16:2+events_unbound11:45:155
3303899993432,2cyclictest3565241-21kworker/u16:4+events_unbound09:55:475
3303899993432,2cyclictest3565241-21kworker/u16:4+events_unbound09:55:475
3303899993432,2cyclictest3500187-21kworker/u16:1+events_unbound12:12:155
3303899993432,2cyclictest3500187-21kworker/u16:1+events_unbound11:36:555
3303899993432,2cyclictest3500187-21kworker/u16:1+events_unbound11:10:125
3303899993432,2cyclictest3500187-21kworker/u16:1+events_unbound09:59:395
3303899993432,2cyclictest3500187-21kworker/u16:1+events_unbound09:45:155
3303899993432,2cyclictest3481738-21kworker/u16:3+events_unbound10:53:515
3303899993432,2cyclictest3481738-21kworker/u16:3+events_unbound09:36:325
3303901993331,2cyclictest3461042-21kworker/u16:0+events_unbound08:39:206
3303901993230,2cyclictest3953315-21kworker/u16:0+events_unbound12:19:276
3303899993230,2cyclictest3747447-21kworker/u16:0+events_unbound10:54:485
3303899993230,2cyclictest3565241-21kworker/u16:4+events_unbound11:41:405
3303899993230,2cyclictest3500187-21kworker/u16:1+events_unbound11:07:385
3303899993230,2cyclictest3481738-21kworker/u16:3+events_unbound10:30:385
3303899993229,2cyclictest3293701-21kworker/u16:1+events_unbound07:39:085
3303895993229,2cyclictest3500187-21kworker/u16:1+events_unbound10:24:114
3303895993228,3cyclictest3500187-21kworker/u16:1+flush-8:011:59:184
3303905993126,4cyclictest635-21systemd-journal08:23:527
3303905993126,4cyclictest3941111-21latency_hist11:58:577
3303905993126,4cyclictest3941111-21latency_hist11:58:577
3303905993125,5cyclictest3432245-21latency_hist08:13:587
3303901993129,2cyclictest3500187-21kworker/u16:1+flush-8:011:00:026
3303899993129,2cyclictest3565241-21kworker/u16:4+events_unbound10:23:395
3303899993129,2cyclictest3481738-21kworker/u16:3+events_unbound09:52:275
3303899993128,2cyclictest3461042-21kworker/u16:0+events_unbound08:52:475
3303899993128,2cyclictest3291645-21kworker/u16:2+events_unbound07:44:005
3303899993028,2cyclictest3481738-21kworker/u16:3+events_unbound09:23:475
3303895993027,2cyclictest3565241-21kworker/u16:4+events_unbound10:34:114
33033402308,7sleep60-21swapper/607:05:166
3303901992926,2cyclictest3500187-21kworker/u16:1+events_unbound11:09:006
3303899992927,2cyclictest3500187-21kworker/u16:1+events_unbound12:19:295
3303899992927,2cyclictest3422970-21kworker/u16:1+events_unbound08:18:515
3303895992926,2cyclictest3565241-21kworker/u16:4+flush-8:012:24:234
36484572280,1chrt3648455-21ssh09:56:167
36484572280,1chrt3648455-21ssh09:56:167
3303901992826,2cyclictest3565241-21kworker/u16:4+flush-8:011:14:236
3303901992826,2cyclictest3565241-21kworker/u16:4+flush-8:011:14:236
3303901992826,2cyclictest3500187-21kworker/u16:1+events_unbound10:19:276
3303899992826,2cyclictest3500187-21kworker/u16:1+events_unbound09:08:475
3303899992826,2cyclictest3432636-21kworker/u16:2+events_unbound08:48:585
3303895992826,2cyclictest3481738-21kworker/u16:3+events_unbound10:51:344
37212322270,1chrt3721231-21ssh10:26:297
3303905992726,0cyclictest0-21swapper/707:57:157
3303899992725,2cyclictest3500187-21kworker/u16:1+events_unbound10:17:365
3303899992725,2cyclictest3303662-21kworker/u16:0+events_unbound07:23:115
3303899992725,2cyclictest3291645-21kworker/u16:2+events_unbound07:52:475
3303905992625,0cyclictest0-21swapper/708:36:167
3303905992625,0cyclictest0-21swapper/708:36:167
3303901992624,2cyclictest3500187-21kworker/u16:1+events_unbound12:28:366
3303901992624,2cyclictest3481738-21kworker/u16:3+flush-8:010:29:186
3303901992624,2cyclictest3291645-21kworker/u16:2+flush-8:008:05:406
3303895992623,2cyclictest3481738-21kworker/u16:3+flush-8:010:39:124
3303905992524,0cyclictest0-21swapper/708:45:317
3303901992523,2cyclictest3953315-21kworker/u16:0+events_unbound12:18:366
3303901992523,2cyclictest3481738-21kworker/u16:3+flush-8:010:39:136
3303899992523,2cyclictest3500187-21kworker/u16:1+events_unbound08:56:475
3303899992523,2cyclictest3432636-21kworker/u16:2+events_unbound09:02:125
3303899992523,2cyclictest3432636-21kworker/u16:2+events_unbound08:22:475
3303899992523,2cyclictest3412698-21kworker/u16:0+events_unbound08:10:525
3303901992421,2cyclictest3481738-21kworker/u16:3+flush-8:009:24:036
3303899992422,2cyclictest3461042-21kworker/u16:0+events_unbound08:34:485
3303899992422,2cyclictest3461042-21kworker/u16:0+events_unbound08:34:485
3303899992420,3cyclictest3412644-21pool-/usr/libex08:00:025
3303895992422,2cyclictest3500187-21kworker/u16:1+events_unbound12:29:114
3303895992422,2cyclictest3293701-21kworker/u16:1+events_unbound07:49:124
3303895992418,5cyclictest3412628-21pool-gnome-soft08:00:004
3303905992322,0cyclictest0-21swapper/708:01:357
3303905992322,0cyclictest0-21swapper/707:17:407
3303901992321,2cyclictest3855124-21kworker/u16:2+events_unbound11:44:106
3303901992320,3cyclictest3412741-21kworker/u16:4+events_unbound08:09:206
3303899992321,2cyclictest3432636-21kworker/u16:2+events_unbound08:30:525
3303899992321,2cyclictest3303662-21kworker/u16:0+events_unbound07:38:215
3303899992321,2cyclictest3303662-21kworker/u16:0+events_unbound07:24:485
3303899992321,2cyclictest3291645-21kworker/u16:2+events_unbound07:17:565
3303905992221,0cyclictest0-21swapper/708:54:447
3303905992221,0cyclictest0-21swapper/708:26:407
3303901992220,2cyclictest3855124-21kworker/u16:2+flush-8:011:24:126
3303901992220,2cyclictest3565241-21kworker/u16:4+flush-8:011:29:246
3303905992120,0cyclictest0-21swapper/711:34:037
3303905992120,0cyclictest0-21swapper/707:42:377
3303901992119,2cyclictest3500187-21kworker/u16:1+flush-8:010:09:046
3303899992119,2cyclictest3432636-21kworker/u16:2+events_unbound08:41:115
3303899992119,2cyclictest3412741-21kworker/u16:4+events_unbound08:05:165
3303895992119,2cyclictest3565241-21kworker/u16:4+events_unbound11:29:134
3303895992119,2cyclictest3432636-21kworker/u16:2+flush-8:009:19:364
3303905992018,1cyclictest0-21swapper/707:19:247
3303901992018,2cyclictest3500187-21kworker/u16:1+events_unbound11:59:236
3303901992017,2cyclictest3747447-21kworker/u16:0+flush-8:010:54:176
3303899992018,2cyclictest3422970-21kworker/u16:1+events_unbound08:28:235
3303895992017,2cyclictest3565241-21kworker/u16:4+flush-8:011:44:034
3303895992016,3cyclictest3500187-21kworker/u16:1+flush-8:009:49:094
3303905991917,1cyclictest0-21swapper/709:08:587
3303905991914,4cyclictest3807868-21latency_hist11:03:587
3303901991917,2cyclictest3747447-21kworker/u16:0+events_unbound11:19:196
3303901991917,2cyclictest3565241-21kworker/u16:4+events_unbound12:30:066
3303901991916,2cyclictest3412741-21kworker/u16:4+events_unbound08:14:156
3303899991917,2cyclictest3293701-21kworker/u16:1+events_unbound07:12:575
3303905991817,0cyclictest0-21swapper/707:53:137
3303905991817,0cyclictest0-21swapper/707:30:507
330390599180,17cyclictest0-21swapper/708:14:207
3303901991816,2cyclictest3953315-21kworker/u16:0+flush-8:012:34:216
3303901991816,2cyclictest3953315-21kworker/u16:0+flush-8:012:34:216
3303901991816,2cyclictest3565241-21kworker/u16:4+flush-8:009:44:196
3303901991816,2cyclictest3481738-21kworker/u16:3+flush-8:010:14:276
3303901991816,2cyclictest3461042-21kworker/u16:0+events_unbound08:34:196
3303901991816,2cyclictest3461042-21kworker/u16:0+events_unbound08:34:196
3303901991816,2cyclictest3432636-21kworker/u16:2+flush-8:008:33:576
3303901991815,2cyclictest3500187-21kworker/u16:1+events_unbound11:33:596
3303901991815,2cyclictest3481738-21kworker/u16:3+events_unbound09:49:146
3303899991816,2cyclictest3293701-21kworker/u16:1+events_unbound07:33:565
3303895991816,2cyclictest3500187-21kworker/u16:1+flush-8:011:34:314
3303895991815,2cyclictest3481738-21kworker/u16:3+flush-8:009:24:154
3303905991716,0cyclictest0-21swapper/708:05:537
3303905991716,0cyclictest0-21swapper/707:34:167
3303901991715,2cyclictest3481738-21kworker/u16:3+events_unbound10:53:556
3303901991715,2cyclictest3293701-21kworker/u16:1+events_unbound07:09:226
330390599167,8cyclictest6895-21gmain11:24:227
3303905991615,0cyclictest0-21swapper/710:14:307
3303905991613,2cyclictest124-21kswapd011:14:217
3303905991613,2cyclictest124-21kswapd011:14:217
3303905991613,2cyclictest1234-21snmpd12:00:437
3303901991614,2cyclictest3500187-21kworker/u16:1+flush-8:009:53:586
3303901991614,2cyclictest3500187-21kworker/u16:1+flush-8:009:53:586
3303895991615,1cyclictest3500187-21kworker/u16:1+events_unbound09:38:334
330390599159,4cyclictest3519223-21latency_hist09:03:587
3303905991514,0cyclictest0-21swapper/712:34:457
3303905991514,0cyclictest0-21swapper/712:34:457
3303905991514,0cyclictest0-21swapper/708:40:507
3303905991514,0cyclictest0-21swapper/707:47:337
3303905991512,2cyclictest124-21kswapd012:04:227
3303905991512,2cyclictest1234-21snmpd12:13:497
3303905991512,2cyclictest0-21swapper/709:33:587
3303905991510,4cyclictest3819983-21latency_hist11:08:577
330390599150,14cyclictest0-21swapper/709:24:227
3303901991513,2cyclictest3855124-21kworker/u16:2+events_unbound12:07:516
3303901991513,2cyclictest3500187-21kworker/u16:1+events_unbound12:09:316
3303901991513,2cyclictest3481738-21kworker/u16:3+events_unbound10:28:076
3303901991513,2cyclictest3293701-21kworker/u16:1+flush-8:007:24:146
3303901991513,2cyclictest3291645-21kworker/u16:2+flush-8:007:54:146
3303901991512,3cyclictest3500187-21kworker/u16:1+flush-8:009:59:076
330389599150,14cyclictest0-21swapper/408:09:084
330390599149,4cyclictest3674085-21latency_hist10:08:587
330390599149,4cyclictest3662060-21latency_hist10:03:587
330390599147,6cyclictest6382-21gvfs-afc-volume11:39:097
3303901991413,1cyclictest0-21swapper/609:20:596
3303901991412,2cyclictest3855124-21kworker/u16:2+events_unbound11:49:256
3303901991412,2cyclictest3481738-21kworker/u16:3+events_unbound10:06:476
3303901991411,2cyclictest3432636-21kworker/u16:2+events_unbound08:59:006
3303895991412,2cyclictest3565241-21kworker/u16:4+flush-8:012:04:194
3303895991412,2cyclictest3500187-21kworker/u16:1+flush-8:011:49:294
330389599140,1cyclictest0-21swapper/411:26:414
330389599140,1cyclictest0-21swapper/410:01:434
330389599140,1cyclictest0-21swapper/409:17:244
330389599140,1cyclictest0-21swapper/407:39:304
330389599140,14cyclictest0-21swapper/412:19:214
330389599140,14cyclictest0-21swapper/412:18:244
330389599140,14cyclictest0-21swapper/409:48:564
330390599139,3cyclictest1234-21snmpd10:52:027
3303905991310,2cyclictest3628034-21ssh09:49:157
3303905991310,2cyclictest0-21swapper/711:44:227
3303901991311,2cyclictest3365035-21kworker/u16:3+events_unbound07:44:136
3303901991311,2cyclictest3291645-21kworker/u16:2+events_unbound07:14:136
3303901991310,3cyclictest3565241-21kworker/u16:4+events_unbound11:04:146
3303901991310,3cyclictest3432636-21kworker/u16:2+flush-8:009:04:146
3303901991310,2cyclictest3422970-21kworker/u16:1+flush-8:008:18:586
3303901991310,2cyclictest3293701-21kworker/u16:1+flush-8:007:34:246
330390199130,13cyclictest0-21swapper/609:39:036
3303895991312,1cyclictest0-21swapper/410:18:444
3303895991312,1cyclictest0-21swapper/408:08:404
3303895991310,2cyclictest3303662-21kworker/u16:0+events_unbound07:14:174
330390599129,2cyclictest3528793-21awk09:08:577
330390599129,2cyclictest1234-21snmpd11:49:187
330390599129,2cyclictest1234-21snmpd11:23:067
330390599129,2cyclictest0-21swapper/711:29:167
330390599128,3cyclictest1234-21snmpd12:29:017
330390599128,3cyclictest1234-21snmpd12:27:167
330390599128,3cyclictest1234-21snmpd11:11:277
330390599128,3cyclictest1234-21snmpd09:31:247
330390599128,3cyclictest1234-21snmpd09:21:087
330390599126,5cyclictest6382-21gvfs-afc-volume09:42:567
3303905991211,0cyclictest0-21swapper/709:44:447
3303905991211,0cyclictest0-21swapper/707:09:167
330390599120,11cyclictest3708480-21ssh10:20:217
330390199126,6cyclictest3432636-21kworker/u16:2+flush-8:008:24:276
330390199126,6cyclictest3432636-21kworker/u16:2+events_unbound09:10:326
3303901991210,2cyclictest3500187-21kworker/u16:1+events_unbound09:35:436
330390199120,12cyclictest0-21swapper/607:52:476
330390199120,12cyclictest0-21swapper/607:40:486
330389599128,3cyclictest3639129-21cat09:54:134
330389599128,3cyclictest3639129-21cat09:54:134
330389599127,4cyclictest3530046-21cat09:09:114
3303895991211,1cyclictest0-21swapper/411:08:154
3303895991211,1cyclictest0-21swapper/408:42:344
3303895991211,1cyclictest0-21swapper/407:10:114
3303895991210,2cyclictest3500187-21kworker/u16:1+flush-8:009:29:284
330389599120,12cyclictest0-21swapper/407:38:434
330389599120,12cyclictest0-21swapper/407:21:324
330390599118,2cyclictest1234-21snmpd10:47:087
330390599117,3cyclictest1234-21snmpd12:17:257
330390599117,3cyclictest1234-21snmpd10:38:117
330390599116,4cyclictest6101-21gmain08:29:157
330390599116,4cyclictest3990851-21cat12:19:117
330390199119,2cyclictest3500187-21kworker/u16:1+events_unbound11:39:216
330390199110,11cyclictest0-21swapper/608:47:116
330390199110,10cyclictest3549820-21ntpq09:14:206
330390599108,1cyclictest3675443-21ssh10:09:157
330390599107,2cyclictest0-21swapper/710:39:147
330390599106,3cyclictest1234-21snmpd07:25:097
330390199108,2cyclictest86-21ksoftirqd/608:54:166
330390199106,3cyclictest3935667-21cut11:54:176
330390199106,3cyclictest3935667-21cut11:54:176
330390199100,9cyclictest3410931-21kthreadcore07:59:196
330389599105,4cyclictest1211-21gdbus10:31:594
330389599100,1cyclictest0-21swapper/407:44:224
33039019996,2cyclictest3743915-21ldconfig10:34:216
33039019996,2cyclictest3350131-21cut07:29:176
33039019990,8cyclictest3577857-21cpuspeed09:29:086
33039019990,8cyclictest0-21swapper/607:19:106
33038959998,1cyclictest0-21swapper/408:43:594
33038959998,1cyclictest0-21swapper/407:55:254
33038959996,2cyclictest0-21swapper/410:19:144
33038959994,4cyclictest3433250-21tune2fs08:14:114
33038959986,1cyclictest0-21swapper/411:14:094
33038959986,1cyclictest0-21swapper/411:14:094
33038959985,2cyclictest0-21swapper/408:54:124
33038959984,3cyclictest4027077-21fschecks_time12:34:114
33038959984,3cyclictest4027077-21fschecks_time12:34:114
33038959984,3cyclictest3604585-21grep09:39:164
33038959984,3cyclictest3471799-21ps08:34:144
33038959984,3cyclictest3471799-21ps08:34:144
33038959983,4cyclictest3974047-21wc12:09:194
33038959983,4cyclictest3936097-21cut11:54:174
33038959983,4cyclictest3936097-21cut11:54:174
33038959983,4cyclictest3896222-21cut11:39:144
33038959983,4cyclictest3849989-21cut11:19:154
33038959983,4cyclictest3829238-21cat11:09:254
33038959983,4cyclictest3802351-21cut10:59:184
33038959983,4cyclictest3677266-21cat10:09:174
33038959983,4cyclictest3511086-21cut08:59:144
33038959983,4cyclictest3462769-21kthreadcore08:29:144
33038959980,5cyclictest3524588-21cut09:04:174
33038959975,1cyclictest0-21swapper/408:19:124
33038959974,2cyclictest3759644-21cpu10:44:094
33038959973,3cyclictest3786721-21cut10:54:164
33038959973,3cyclictest3452210-21expr08:24:104
33038959973,3cyclictest3347138-21sed07:29:144
33038959973,3cyclictest3337074-21cat07:24:104
33039019960,6cyclictest0-21swapper/608:52:166
33038959950,4cyclictest3499662-21chrt08:49:134
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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