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2026-08-23 - 12:18
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Sun Aug 23, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31895812990,0sleep60-21swapper/621:47:526
284585325823,30sleep70-21swapper/719:03:527
284585325823,30sleep70-21swapper/719:03:527
284585124535,7sleep50-21swapper/519:03:505
284585124535,7sleep50-21swapper/519:03:505
34078552440,0sleep73407856-21sh23:20:187
2846399994139,2cyclictest2782481-21kworker/u16:3+flush-8:019:37:254
2846399993836,2cyclictest2908646-21kworker/u16:1+flush-8:020:07:244
2846414993732,4cyclictest3553278-21latency_hist00:22:247
2846412993634,2cyclictest3469039-21kworker/u16:3+events_unbound23:52:586
2846412993532,2cyclictest3287286-21kworker/u16:1+flush-8:022:32:256
2846407993531,3cyclictest2986313-21kworker/u16:0+flush-8:020:32:515
2846407993429,4cyclictest2888836-21kworker/u16:4+flush-8:019:27:255
2846399993431,2cyclictest3430754-21kworker/u16:1+events_unbound00:07:384
284578823423,7sleep60-21swapper/619:03:026
284578823423,7sleep60-21swapper/619:03:026
2846412993129,2cyclictest3225493-21kworker/u16:3+events_unbound22:13:306
2846412993129,2cyclictest3225493-21kworker/u16:3+events_unbound22:13:306
2846407993128,2cyclictest3154591-21kworker/u16:1+events_unbound22:22:395
2846412993028,2cyclictest3142430-21kworker/u16:0+events_unbound21:37:056
2846412993028,2cyclictest3064889-21kworker/u16:3+events_unbound21:21:456
2846412993024,6cyclictest2781859-21kworker/u16:2+flush-8:019:50:236
2846407993028,2cyclictest3006319-21kworker/u16:4+events_unbound20:57:405
283682723019,8sleep40-21swapper/419:02:364
283682723019,8sleep40-21swapper/419:02:364
28607002290,1chrt0-21swapper/519:12:385
2846412992927,2cyclictest3565739-21kworker/u16:0+events_unbound00:36:166
2846412992927,2cyclictest3516020-21kworker/u16:0+events_unbound00:06:166
2846412992927,2cyclictest3108472-21kworker/u16:2+flush-8:021:24:046
2846412992927,2cyclictest3108472-21kworker/u16:2+events_unbound22:04:466
2846412992927,2cyclictest2782481-21kworker/u16:3+events_unbound20:00:156
2846412992926,2cyclictest3274325-21kworker/u16:2+events_unbound22:27:266
2846407992927,2cyclictest3430754-21kworker/u16:1+flush-8:023:47:505
2846414992823,4cyclictest3493081-21latency_hist23:57:257
2846412992827,1cyclictest3274325-21kworker/u16:2+events_unbound22:53:016
2846412992827,1cyclictest3274325-21kworker/u16:2+events_unbound22:53:016
2846412992826,2cyclictest3287286-21kworker/u16:1+events_unbound22:48:176
2846412992826,2cyclictest3287286-21kworker/u16:1+events_unbound22:39:336
2846412992826,2cyclictest2986313-21kworker/u16:0+events_unbound20:29:426
2846412992826,2cyclictest2957838-21kworker/u16:2+flush-8:020:02:596
2846412992826,2cyclictest2132081-21kworker/u16:1+flush-8:019:11:396
2846412992825,2cyclictest3166654-21kworker/u16:3+flush-8:021:42:256
2846407992825,2cyclictest2782481-21kworker/u16:3+events_unbound20:12:385
2846414992726,0cyclictest0-21swapper/721:27:547
2846412992725,2cyclictest3469039-21kworker/u16:3+flush-8:000:24:486
2846412992725,2cyclictest3430754-21kworker/u16:1+events_unbound23:29:496
2846412992725,2cyclictest3399490-21kworker/u16:2+events_unbound23:38:296
2846412992725,2cyclictest3348774-21kworker/u16:0+events_unbound23:34:036
2846412992725,2cyclictest3348774-21kworker/u16:0+events_unbound23:34:036
2846412992725,2cyclictest3312814-21kworker/u16:4+events_unbound23:13:366
2846412992725,2cyclictest3191476-21kworker/u16:0+events_unbound21:56:016
2846412992725,2cyclictest3154591-21kworker/u16:1+events_unbound22:07:406
2846412992725,2cyclictest3108472-21kworker/u16:2+events_unbound21:31:506
2846412992724,2cyclictest3553107-21kworker/u16:2+events_unbound00:27:286
2846412992724,2cyclictest2816833-21kworker/u16:0+flush-8:019:17:316
2846407992725,2cyclictest3576547-21kworker/u16:4+events_unbound00:32:545
2846407992725,2cyclictest3006319-21kworker/u16:4+events_unbound20:52:495
2846399992725,2cyclictest2908646-21kworker/u16:1+flush-8:020:07:454
2846412992624,2cyclictest3312814-21kworker/u16:4+events_unbound23:08:176
2846412992624,2cyclictest3064889-21kworker/u16:3+events_unbound21:05:476
2846412992624,2cyclictest2908646-21kworker/u16:1+events_unbound19:53:116
2846412992624,2cyclictest2908646-21kworker/u16:1+events_unbound19:45:046
2846407992624,2cyclictest3154591-21kworker/u16:1+flush-8:022:07:445
2846399992624,2cyclictest3312814-21kworker/u16:4+events_unbound23:12:554
2846414992520,4cyclictest3240436-21latency_hist22:12:247
2846412992523,2cyclictest3348774-21kworker/u16:0+events_unbound23:44:176
2846412992523,2cyclictest3348774-21kworker/u16:0+events_unbound23:04:116
2846412992523,2cyclictest3348774-21kworker/u16:0+events_unbound23:01:136
2846412992523,2cyclictest3312814-21kworker/u16:4+events_unbound23:20:406
2846412992523,2cyclictest3225493-21kworker/u16:3+events_unbound22:19:416
2846412992523,2cyclictest3191476-21kworker/u16:0+events_unbound22:44:096
2846412992523,2cyclictest3064889-21kworker/u16:3+events_unbound21:08:216
2846412992523,2cyclictest2782481-21kworker/u16:3+events_unbound19:38:006
2846412992523,2cyclictest2781859-21kworker/u16:2+events_unbound19:17:156
2846399992523,2cyclictest2816833-21kworker/u16:0+flush-8:019:12:544
2846412992422,2cyclictest3469039-21kworker/u16:3+events_unbound23:59:296
2846412992422,2cyclictest3399490-21kworker/u16:2+events_unbound23:25:296
2846412992422,2cyclictest2986313-21kworker/u16:0+events_unbound20:45:396
2846412992422,2cyclictest2782481-21kworker/u16:3+events_unbound19:27:236
2846407992421,2cyclictest3469039-21kworker/u16:3+flush-8:023:52:305
2846399992422,2cyclictest3516020-21kworker/u16:0+events_unbound00:17:464
2846412992321,2cyclictest3469039-21kworker/u16:3+events_unbound23:48:446
2846412992321,2cyclictest2986313-21kworker/u16:0+events_unbound21:14:296
2846412992321,2cyclictest2986313-21kworker/u16:0+events_unbound20:35:186
2846412992321,2cyclictest2957838-21kworker/u16:2+events_unbound20:19:596
2846412992321,2cyclictest2957838-21kworker/u16:2+events_unbound20:19:596
2846399992321,2cyclictest3225493-21kworker/u16:3+events_unbound22:33:384
2846414992219,2cyclictest3589432-21cat00:37:247
284641499220,20cyclictest3481040-21latency_hist23:52:257
2846412992220,2cyclictest3516020-21kworker/u16:0+flush-8:000:21:496
2846412992220,2cyclictest3469039-21kworker/u16:3+events_unbound00:10:576
2846412992220,2cyclictest3225493-21kworker/u16:3+flush-8:022:24:456
2846412992220,2cyclictest3191476-21kworker/u16:0+events_unbound22:01:096
2846412992220,2cyclictest3108472-21kworker/u16:2+flush-8:021:41:036
2846412992220,2cyclictest3006319-21kworker/u16:4+events_unbound20:54:276
2846412992220,2cyclictest3005996-21kworker/u16:1+events_unbound20:51:276
2846412992220,2cyclictest2986313-21kworker/u16:0+flush-8:021:02:046
2846412992219,2cyclictest3469039-21kworker/u16:3+flush-8:000:12:266
2846407992220,2cyclictest3348774-21kworker/u16:0+events_unbound23:37:485
2846399992219,2cyclictest3430754-21kworker/u16:1+flush-8:023:37:304
2846412992119,2cyclictest2888836-21kworker/u16:4+events_unbound19:29:266
2846407992119,2cyclictest3469039-21kworker/u16:3+events_unbound00:27:385
2846407992119,2cyclictest3348774-21kworker/u16:0+events_unbound23:02:495
2846407992119,2cyclictest3154591-21kworker/u16:1+flush-8:021:47:385
2846399992119,2cyclictest3373050-21kworker/u16:1+flush-8:023:17:394
2846399992119,2cyclictest3154591-21kworker/u16:1+flush-8:021:42:464
2846399992118,2cyclictest2816833-21kworker/u16:0+events_unbound19:07:454
2846414992018,1cyclictest0-21swapper/720:57:437
2846412992018,2cyclictest2986313-21kworker/u16:0+flush-8:020:39:226
2846407992018,2cyclictest3191476-21kworker/u16:0+events_unbound21:52:375
2846407992017,2cyclictest3108472-21kworker/u16:2+flush-8:021:42:375
2846407992017,2cyclictest2781859-21kworker/u16:2+events_unbound19:42:385
2846399992018,2cyclictest3154591-21kworker/u16:1+flush-8:021:57:474
284641499190,17cyclictest3252577-21cat22:17:247
284641499190,17cyclictest3252577-21cat22:17:247
284641499190,17cyclictest2869668-21latency_hist19:17:257
2846412991917,2cyclictest2986313-21kworker/u16:0+events_unbound20:25:556
2846412991917,2cyclictest2957838-21kworker/u16:2+events_unbound20:09:596
2846412991917,2cyclictest2908646-21kworker/u16:1+events_unbound20:14:566
2846407991917,2cyclictest2816833-21kworker/u16:0+flush-8:019:07:535
2846407991916,2cyclictest3516020-21kworker/u16:0+flush-8:000:12:425
2846399991917,2cyclictest3312814-21kworker/u16:4+flush-8:023:02:484
2846399991916,3cyclictest3348774-21kworker/u16:0+flush-8:023:01:314
284641499189,8cyclictest6124-21gmain19:17:467
284641499182,14cyclictest0-21swapper/723:42:487
2846414991812,5cyclictest3035417-21latency_hist20:42:257
284641499180,17cyclictest0-21swapper/722:37:517
2846412991816,2cyclictest2781859-21kworker/u16:2+events_unbound19:35:516
2846407991817,1cyclictest3348774-21kworker/u16:0+events_unbound23:31:195
2846407991816,2cyclictest2781859-21kworker/u16:2+flush-8:019:48:035
2846399991816,2cyclictest3430754-21kworker/u16:1+flush-8:023:32:144
2846399991816,2cyclictest3108472-21kworker/u16:2+flush-8:021:47:584
2846399991815,2cyclictest3006319-21kworker/u16:4+flush-8:020:32:424
284639999180,17cyclictest0-21swapper/423:32:494
284639999180,17cyclictest0-21swapper/423:32:494
284641499171,15cyclictest2846393-21cyclictest00:30:497
284641499170,1cyclictest0-21swapper/720:27:507
284641499170,15cyclictest648-21systemd-journal23:32:247
2846407991715,2cyclictest3064889-21kworker/u16:3+events_unbound21:17:505
2846399991715,2cyclictest3469039-21kworker/u16:3+events_unbound00:22:584
2846399991715,2cyclictest3312814-21kworker/u16:4+events_unbound23:07:344
2846399991715,2cyclictest3064889-21kworker/u16:3+flush-8:021:10:364
2846399991715,2cyclictest2986313-21kworker/u16:0+flush-8:020:47:404
2846399991715,2cyclictest2908646-21kworker/u16:1+events_unbound19:52:554
2846399991714,2cyclictest3430754-21kworker/u16:1+flush-8:023:47:244
2846399991714,2cyclictest3166654-21kworker/u16:3+events_unbound21:52:264
2846414991613,2cyclictest3261630-21ssh22:17:507
284641499160,1cyclictest3502270-21ssh23:57:517
284641499160,14cyclictest0-21swapper/719:37:477
2846407991614,2cyclictest3348774-21kworker/u16:0+flush-8:022:57:415
2846407991614,2cyclictest2908646-21kworker/u16:1+events_unbound20:07:505
2846407991614,2cyclictest2132081-21kworker/u16:1+events_unbound19:17:435
2846407991613,2cyclictest3373050-21kworker/u16:1+flush-8:023:12:315
2846399991615,1cyclictest0-21swapper/421:26:174
2846399991614,2cyclictest3312814-21kworker/u16:4+flush-8:022:52:494
2846399991614,2cyclictest3312814-21kworker/u16:4+flush-8:022:52:494
2846399991612,3cyclictest3399490-21kworker/u16:2+flush-8:023:22:464
2846414991511,3cyclictest1302-21snmpd22:46:007
284641499150,14cyclictest0-21swapper/720:42:507
284641499150,13cyclictest3084216-21diskmemload00:02:517
284641499150,13cyclictest1302-21snmpd22:29:567
2846407991513,2cyclictest3399490-21kworker/u16:2+flush-8:023:42:495
2846399991513,2cyclictest3108472-21kworker/u16:2+flush-8:021:38:354
2846399991513,2cyclictest3064889-21kworker/u16:3+flush-8:021:32:364
2846399991513,2cyclictest2986313-21kworker/u16:0+events_unbound20:22:554
284639999150,1cyclictest0-21swapper/400:31:044
2846414991411,2cyclictest3529238-21munin-run00:12:247
2846414991411,2cyclictest0-21swapper/722:47:427
284641499140,1cyclictest0-21swapper/719:07:497
284641499140,13cyclictest3084216-21diskmemload21:47:487
2846407991413,1cyclictest0-21swapper/500:05:515
2846407991412,2cyclictest3154591-21kworker/u16:1+events_unbound21:57:385
2846407991412,2cyclictest2957838-21kworker/u16:2+events_unbound20:02:425
2846399991413,1cyclictest0-21swapper/422:30:564
2846399991412,2cyclictest3225493-21kworker/u16:3+events_unbound22:41:274
2846399991412,2cyclictest3191476-21kworker/u16:0+flush-8:022:02:404
2846399991412,2cyclictest2816833-21kworker/u16:0+flush-8:019:17:514
2846399991412,2cyclictest2782481-21kworker/u16:3+flush-8:020:12:544
2846399991412,2cyclictest2782481-21kworker/u16:3+events_unbound19:37:434
2846399991411,2cyclictest3469039-21kworker/u16:3+events_unbound23:57:264
284639999140,1cyclictest0-21swapper/422:09:584
284639999140,14cyclictest0-21swapper/423:57:204
284641499138,4cyclictest3457001-21latency_hist23:42:247
284641499136,6cyclictest5965-21gmain22:53:347
284641499136,6cyclictest5965-21gmain22:53:347
2846414991310,2cyclictest0-21swapper/720:37:257
2846407991313,0cyclictest0-21swapper/522:37:155
2846407991312,1cyclictest0-21swapper/521:40:015
284640799130,1cyclictest0-21swapper/523:19:305
284640799130,13cyclictest0-21swapper/523:26:075
284640799130,13cyclictest0-21swapper/522:54:265
284640799130,13cyclictest0-21swapper/522:54:265
284640799130,13cyclictest0-21swapper/522:39:465
284640799130,13cyclictest0-21swapper/522:03:215
284640799130,13cyclictest0-21swapper/500:21:565
284640799130,0cyclictest0-21swapper/521:07:515
2846399991312,1cyclictest0-21swapper/423:49:464
2846399991312,1cyclictest0-21swapper/422:21:574
2846399991312,1cyclictest0-21swapper/400:15:374
2846399991311,2cyclictest3084686-21kworker/u16:1+flush-8:021:27:314
284639999130,13cyclictest0-21swapper/421:19:124
284639999130,0cyclictest0-21swapper/422:45:264
284641499129,2cyclictest1302-21snmpd22:59:367
284641499129,2cyclictest1302-21snmpd19:25:327
284641499129,2cyclictest0-21swapper/720:07:257
284641499128,3cyclictest1302-21snmpd21:08:017
284641499128,3cyclictest1302-21snmpd19:58:057
284641499128,3cyclictest1302-21snmpd19:52:567
284641499128,3cyclictest1302-21snmpd19:32:297
284641499127,4cyclictest6233-21gvfs-afc-volume19:27:407
284641499126,5cyclictest6233-21gvfs-afc-volume23:02:417
2846414991211,0cyclictest0-21swapper/721:02:407
284641499120,2cyclictest3529705-21ssh00:12:367
284641499120,11cyclictest1302-21snmpd23:34:347
284641499120,11cyclictest1302-21snmpd23:34:347
284641499120,11cyclictest1302-21snmpd21:14:527
284641499120,10cyclictest1302-21snmpd21:37:347
2846407991210,2cyclictest3225493-21kworker/u16:3+flush-8:022:12:495
2846407991210,2cyclictest3225493-21kworker/u16:3+flush-8:022:12:495
2846399991211,1cyclictest0-21swapper/422:51:264
2846399991210,2cyclictest3493512-21kworker/u16:2+events_unbound00:02:544
2846399991210,2cyclictest3249700-21kworker/u16:2+flush-8:022:15:064
2846399991210,2cyclictest3249700-21kworker/u16:2+flush-8:022:15:064
2846399991210,2cyclictest2816833-21kworker/u16:0+flush-8:019:22:444
284639999120,1cyclictest0-21swapper/420:46:154
284639999120,12cyclictest0-21swapper/419:46:204
284641499119,1cyclictest0-21swapper/722:02:427
284641499119,1cyclictest0-21swapper/720:52:427
284641499118,2cyclictest1302-21snmpd19:46:297
284641499118,2cyclictest0-21swapper/721:17:467
284641499117,3cyclictest5965-21gmain20:12:387
284641499117,3cyclictest1302-21snmpd20:48:247
284641499117,3cyclictest1302-21snmpd20:20:187
284641499117,3cyclictest1302-21snmpd20:20:187
284641499117,3cyclictest1302-21snmpd19:49:447
284641499117,3cyclictest1302-21snmpd00:26:367
284641499115,4cyclictest3376581-21grep23:07:427
2846414991111,0cyclictest0-21swapper/721:43:037
284641499110,2cyclictest3202052-21ssh21:52:547
284641499110,1cyclictest0-21swapper/723:22:487
284641499110,10cyclictest1302-21snmpd21:32:287
284640799116,4cyclictest3554553-21cat00:22:395
2846407991110,1cyclictest0-21swapper/522:51:555
2846407991110,1cyclictest0-21swapper/522:44:495
2846407991110,1cyclictest0-21swapper/522:30:095
2846407991110,1cyclictest0-21swapper/522:18:015
2846407991110,1cyclictest0-21swapper/521:05:485
284640799110,11cyclictest0-21swapper/520:48:565
284640799110,11cyclictest0-21swapper/519:55:485
284639999118,2cyclictest3006319-21kworker/u16:4+events_unbound21:02:264
2846399991110,1cyclictest0-21swapper/422:22:254
284639999110,11cyclictest0-21swapper/420:32:034
284641499108,1cyclictest0-21swapper/722:32:427
284641499107,2cyclictest0-21swapper/722:22:447
284641499106,3cyclictest1302-21snmpd21:59:177
284641499104,5cyclictest6233-21gvfs-afc-volume20:04:137
284641499100,9cyclictest3129356-21sh21:22:487
284641499100,2cyclictest3084216-21diskmemload23:12:367
284640799109,1cyclictest0-21swapper/500:09:575
284640799107,2cyclictest2782481-21kworker/u16:3+events_unbound19:27:395
284639999109,1cyclictest0-21swapper/420:41:404
284639999108,2cyclictest2782481-21kworker/u16:3+flush-8:019:57:444
284639999107,2cyclictest2908381-21kworker/u16:0+flush-8:019:47:514
28464149994,4cyclictest934-21dbus-daemon20:27:257
28464079998,1cyclictest0-21swapper/521:33:245
28464079998,1cyclictest0-21swapper/519:58:485
28464079996,2cyclictest0-21swapper/521:12:435
28464079990,8cyclictest0-21swapper/523:57:415
28463999998,1cyclictest0-21swapper/420:58:234
28463999998,1cyclictest0-21swapper/420:55:524
28463999997,2cyclictest3553107-21kworker/u16:2+events_unbound00:32:314
28463999997,2cyclictest3006319-21kworker/u16:4+flush-8:021:12:404
28463999997,2cyclictest2888836-21kworker/u16:4+flush-8:019:32:204
28463999995,3cyclictest2987711-21tune2fs20:17:394
28463999995,3cyclictest2987711-21tune2fs20:17:394
28464079987,1cyclictest0-21swapper/519:34:025
28464079986,2cyclictest3025715-21kworker/u16:2+events_unbound20:42:555
28464079986,2cyclictest2782481-21kworker/u16:3+flush-8:019:37:415
28464079984,1cyclictest201rcu_preempt23:32:355
28464079984,1cyclictest201rcu_preempt23:32:355
28464079983,4cyclictest2993508-21grep20:17:455
28464079983,4cyclictest2993508-21grep20:17:455
28464079982,2cyclictest681rcuog/423:07:485
28464079980,7cyclictest3129047-21cut21:22:455
28464079974,2cyclictest3008067-21kthreadcore20:27:425
28464079973,3cyclictest3133235-21expr21:27:385
28464079973,3cyclictest2998215-21cut20:22:435
28464079972,4cyclictest3028763-21kthreadcore20:37:445
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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