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2026-07-29 - 20:34
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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 Wed Jul 29, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286745125319,29sleep70-21swapper/707:05:277
2867998995044,5cyclictest3066351-21latency_hist08:48:597
2867998994642,3cyclictest125-21kswapd009:17:577
2867998994642,3cyclictest125-21kswapd009:17:577
2867988994440,4cyclictest2949735-21kworker/u16:1+flush-8:007:53:595
2867988994440,4cyclictest2949735-21kworker/u16:1+flush-8:007:53:595
286743024232,7sleep40-21swapper/407:05:074
2867998994138,2cyclictest3216059-21ssh09:53:597
286631624128,8sleep50-21swapper/507:04:285
2867988994037,2cyclictest3127827-21kworker/u16:1+events_unbound09:29:145
286743224027,9sleep60-21swapper/607:05:106
36072282390,0chrt0-21swapper/512:31:395
2867998993529,5cyclictest2998218-21latency_hist08:14:007
2867988993533,2cyclictest3066735-21kworker/u16:4+flush-8:009:04:005
2867998993332,0cyclictest0-21swapper/708:19:147
2867998993330,2cyclictest3316116-21ssh10:34:177
2867988993331,2cyclictest3127827-21kworker/u16:1+flush-8:009:34:125
2867988993230,2cyclictest2949735-21kworker/u16:1+events_unbound08:04:215
2867998993125,5cyclictest2910610-21latency_hist07:29:007
2867985993129,2cyclictest3251442-21kworker/u16:0+events_unbound10:24:264
286799899300,28cyclictest2879577-21grep07:14:037
2867988992927,2cyclictest3507859-21kworker/u16:2+events_unbound12:19:015
2867988992927,2cyclictest3251442-21kworker/u16:0+events_unbound10:13:105
2867988992927,1cyclictest3127827-21kworker/u16:1+events_unbound10:25:425
2867985992925,3cyclictest2900871-21kworker/u16:3+flush-8:008:49:174
32532012280,1chrt3253203-21sed10:08:597
29111602280,0sleep60-21swapper/607:29:136
2867998992822,5cyclictest2920360-21latency_hist07:34:007
2867988992826,2cyclictest3313610-21kworker/u16:1+flush-8:011:44:255
2867988992826,2cyclictest3209088-21kworker/u16:2+flush-8:009:54:295
2867988992826,2cyclictest3209088-21kworker/u16:2+flush-8:009:54:295
2867985992826,2cyclictest3129293-21kworker/u16:5+flush-8:009:34:174
31907222260,1chrt3190720-21ssh09:42:477
2867998992623,2cyclictest3532318-21ssh11:59:317
2867998992623,2cyclictest3532318-21ssh11:59:317
2867988992624,2cyclictest3127827-21kworker/u16:1+flush-8:010:03:545
2867988992624,2cyclictest3085539-21kworker/u16:0+events_unbound09:14:115
2867988992624,2cyclictest3085539-21kworker/u16:0+events_unbound09:14:115
2867988992624,2cyclictest2838574-21kworker/u16:1+flush-8:007:29:255
2867998992524,0cyclictest0-21swapper/712:04:187
2867998992520,4cyclictest3412170-21latency_hist11:13:597
2867988992523,2cyclictest3338854-21kworker/u16:4+events_unbound10:58:545
2867988992423,1cyclictest3323967-21kworker/u16:3+events_unbound10:34:575
2867988992421,2cyclictest3300470-21kworker/u16:2+flush-8:010:44:095
2867993992319,3cyclictest2891163-21kworker/u16:2+flush-8:008:29:176
2867988992321,2cyclictest2891163-21kworker/u16:2+flush-8:007:18:555
2867985992320,2cyclictest2891163-21kworker/u16:2+flush-8:007:44:254
286799899220,20cyclictest3363267-21systemd-run10:53:597
2867993992219,3cyclictest3018041-21kworker/u16:1+flush-8:008:54:256
2867988992220,2cyclictest3412557-21kworker/u16:4+events_unbound11:28:305
2867988992220,2cyclictest3385554-21kworker/u16:2+flush-8:011:09:255
2867988992220,2cyclictest3018041-21kworker/u16:1+flush-8:009:04:255
2867988992219,2cyclictest3129293-21kworker/u16:5+events_unbound09:24:015
2867998992120,0cyclictest0-21swapper/707:54:287
2867988992119,2cyclictest3372964-21kworker/u16:0+events_unbound11:50:415
2867988992119,2cyclictest2877283-21kworker/u16:0+events_unbound07:24:255
2867988992119,2cyclictest2838574-21kworker/u16:1+events_unbound07:39:285
2867988992118,2cyclictest3178347-21kworker/u16:0+flush-8:009:44:045
2867985992119,2cyclictest3385554-21kworker/u16:2+events_unbound11:19:174
2867988992018,2cyclictest3412557-21kworker/u16:4+events_unbound11:18:265
32648242190,0chrt3264822-21ssh10:13:247
286799899190,17cyclictest1302-21snmpd09:27:237
2867988991917,2cyclictest3583409-21kworker/u16:0+events_unbound12:34:265
2867988991917,2cyclictest3372964-21kworker/u16:0+events_unbound12:04:265
2867988991917,2cyclictest3129293-21kworker/u16:5+events_unbound09:43:105
2867988991916,2cyclictest3129293-21kworker/u16:5+flush-8:010:19:055
2867985991916,2cyclictest3018041-21kworker/u16:1+flush-8:008:24:144
2867988991815,2cyclictest3453928-21kthreadcore11:29:195
2867985991816,2cyclictest3251442-21kworker/u16:0+events_unbound10:39:214
2867985991816,2cyclictest3251442-21kworker/u16:0+events_unbound10:39:214
2867985991816,2cyclictest3085539-21kworker/u16:0+events_unbound09:19:294
2867998991712,4cyclictest648-21systemd-journal12:33:597
2867998991712,4cyclictest3314151-21latency_hist10:33:597
2867993991714,2cyclictest3519482-21ntpq11:54:246
2867988991715,2cyclictest3583993-21kworker/u16:1+events_unbound12:25:095
2867988991715,2cyclictest3209088-21kworker/u16:2+events_unbound09:50:105
2867988991715,2cyclictest3018041-21kworker/u16:1+events_unbound08:54:195
2867988991714,2cyclictest3412557-21kworker/u16:4+flush-8:011:34:015
35804642160,0sleep73580467-21cut12:19:227
286799899160,14cyclictest0-21swapper/709:59:257
2867993991613,2cyclictest0-21swapper/610:39:126
2867993991613,2cyclictest0-21swapper/610:39:126
286799399160,15cyclictest3455248-21grep11:29:206
2867988991614,2cyclictest3526935-21kworker/u16:3+flush-8:012:14:245
2867988991614,2cyclictest3507859-21kworker/u16:2+flush-8:011:54:095
2867988991614,2cyclictest3228752-21kworker/u16:3+events_unbound10:06:315
2867988991614,2cyclictest2939628-21kworker/u16:0+flush-8:007:44:185
2867988991614,2cyclictest2891163-21kworker/u16:2+flush-8:008:24:275
2867988991614,2cyclictest2891163-21kworker/u16:2+flush-8:008:14:155
286798599160,15cyclictest3506823-21kthreadcore11:49:204
286798599160,15cyclictest3196100-21grep09:44:194
2867998991510,3cyclictest3435786-21ssh11:22:137
286799899150,13cyclictest0-21swapper/711:49:227
286799899150,13cyclictest0-21swapper/708:49:237
2867993991513,2cyclictest2949735-21kworker/u16:1+events_unbound07:59:146
2867988991513,2cyclictest3313610-21kworker/u16:1+events_unbound10:59:195
2867988991513,2cyclictest2794161-21kworker/u16:2+flush-8:007:09:175
2867988991512,2cyclictest3300470-21kworker/u16:2+events_unbound10:49:005
286799899149,4cyclictest1302-21snmpd11:04:237
286799899148,5cyclictest2877574-21latency_hist07:14:007
2867998991411,2cyclictest3495599-21ssh11:44:377
2867998991411,2cyclictest0-21swapper/711:13:597
286799899140,1cyclictest0-21swapper/710:59:237
286799899140,1cyclictest0-21swapper/708:29:237
2867993991413,1cyclictest0-21swapper/610:44:336
286799399140,2cyclictest3531672-21ntpq11:59:266
286799399140,2cyclictest3531672-21ntpq11:59:266
286799399140,1cyclictest0-21swapper/611:35:106
286799399140,1cyclictest0-21swapper/611:09:006
286799399140,1cyclictest0-21swapper/610:59:236
286799399140,14cyclictest0-21swapper/612:13:196
286799399140,14cyclictest0-21swapper/611:43:316
286799399140,14cyclictest0-21swapper/610:12:526
2867988991413,1cyclictest0-21swapper/509:09:575
2867988991412,2cyclictest3300470-21kworker/u16:2+events_unbound10:39:235
2867988991412,2cyclictest3300470-21kworker/u16:2+events_unbound10:39:235
2867988991412,2cyclictest2949735-21kworker/u16:1+flush-8:008:03:595
2867988991411,2cyclictest3372964-21kworker/u16:0+flush-8:011:39:055
2867988991411,2cyclictest3075333-21smart_sda08:49:275
2867988991411,2cyclictest2997918-21kworker/u16:0+flush-8:008:34:135
2867988991411,2cyclictest2997918-21kworker/u16:0+flush-8:008:34:135
286798599140,1cyclictest0-21swapper/411:16:154
286798599140,13cyclictest0-21swapper/409:39:064
286799899139,3cyclictest1302-21snmpd09:01:417
286799899139,3cyclictest1302-21snmpd07:44:277
286799899137,5cyclictest3522595-21latency_hist11:58:597
286799899137,5cyclictest3105267-21latency_hist09:08:597
2867998991311,1cyclictest0-21swapper/708:39:187
2867998991310,2cyclictest1302-21snmpd10:55:107
286799399138,4cyclictest2960473-21cat07:54:166
286799399138,4cyclictest0-21swapper/612:14:126
286799399138,4cyclictest0-21swapper/609:19:176
2867993991312,1cyclictest0-21swapper/611:23:026
2867993991312,1cyclictest0-21swapper/610:49:276
2867993991312,1cyclictest0-21swapper/610:01:506
2867993991312,1cyclictest0-21swapper/609:44:246
2867993991312,1cyclictest0-21swapper/609:16:356
2867993991312,1cyclictest0-21swapper/609:16:356
286799399130,13cyclictest0-21swapper/610:23:266
286799399130,13cyclictest0-21swapper/610:07:216
286799399130,13cyclictest0-21swapper/609:31:526
2867988991312,1cyclictest0-21swapper/511:07:245
2867988991311,2cyclictest3507859-21kworker/u16:2+events_unbound12:13:085
2867988991311,2cyclictest3129293-21kworker/u16:5+events_unbound09:23:105
2867988991311,2cyclictest2900871-21kworker/u16:3+flush-8:008:44:165
286798899130,13cyclictest0-21swapper/511:23:585
286798899130,13cyclictest0-21swapper/510:30:025
2867985991312,1cyclictest0-21swapper/412:36:294
2867985991312,1cyclictest0-21swapper/411:44:184
2867985991312,1cyclictest0-21swapper/410:05:554
2867985991311,2cyclictest3127827-21kworker/u16:1+events_unbound09:54:134
2867985991311,2cyclictest3127827-21kworker/u16:1+events_unbound09:54:134
2867985991310,2cyclictest0-21swapper/407:14:194
286798599130,13cyclictest0-21swapper/411:34:284
286799899129,2cyclictest3608537-21ssh12:33:587
286799899129,2cyclictest1302-21snmpd11:38:127
286799899129,2cyclictest1302-21snmpd09:33:507
286799899129,2cyclictest0-21swapper/707:49:007
286799899129,2cyclictest0-21swapper/707:49:007
286799899128,3cyclictest1302-21snmpd11:28:297
286799899128,3cyclictest1302-21snmpd08:15:227
286799899128,3cyclictest1302-21snmpd07:37:427
286799899127,4cyclictest1302-21snmpd07:40:457
2867998991211,0cyclictest0-21swapper/709:45:067
286799899120,2cyclictest3167294-21ssh09:34:077
286799899120,10cyclictest0-21swapper/708:02:597
286799399128,3cyclictest2979975-21cat08:04:166
286799399126,5cyclictest0-21swapper/612:04:156
2867993991211,1cyclictest0-21swapper/611:44:006
2867993991211,1cyclictest0-21swapper/611:09:286
2867993991211,1cyclictest0-21swapper/610:54:206
2867993991211,1cyclictest0-21swapper/610:38:436
2867993991211,1cyclictest0-21swapper/610:15:526
2867993991211,1cyclictest0-21swapper/609:58:506
2867993991211,1cyclictest0-21swapper/609:58:506
2867993991211,1cyclictest0-21swapper/609:38:306
286799399120,1cyclictest0-21swapper/607:51:556
286799399120,1cyclictest0-21swapper/607:51:556
286799399120,12cyclictest0-21swapper/612:38:526
286799399120,0cyclictest0-21swapper/611:53:566
286799399120,0cyclictest0-21swapper/611:28:526
2867988991211,1cyclictest0-21swapper/507:34:435
2867988991210,2cyclictest3251442-21kworker/u16:0+events_unbound10:14:135
286798899120,1cyclictest0-21swapper/508:39:595
286798599129,2cyclictest3372964-21kworker/u16:0+events_unbound10:59:174
2867985991211,1cyclictest0-21swapper/412:30:484
2867985991211,1cyclictest0-21swapper/411:24:264
2867985991211,1cyclictest0-21swapper/410:58:154
2867985991211,1cyclictest0-21swapper/409:14:124
2867985991211,1cyclictest0-21swapper/409:14:124
2867985991211,1cyclictest0-21swapper/408:19:294
2867985991210,1cyclictest0-21swapper/411:09:214
286798599120,1cyclictest0-21swapper/412:09:034
286798599120,1cyclictest0-21swapper/412:06:314
286798599120,1cyclictest0-21swapper/410:14:354
286798599120,1cyclictest0-21swapper/407:41:484
286798599120,12cyclictest0-21swapper/412:16:084
286798599120,12cyclictest0-21swapper/409:31:514
286799899118,2cyclictest1302-21snmpd12:10:137
286799899118,2cyclictest1302-21snmpd11:30:057
286799899118,2cyclictest1302-21snmpd10:20:227
286799899118,2cyclictest1302-21snmpd09:12:207
286799899118,2cyclictest1302-21snmpd08:56:417
286799899117,3cyclictest6124-21gmain08:34:177
286799899117,3cyclictest6124-21gmain08:34:177
286799899117,3cyclictest5841-21JS17:17:147
286799899117,3cyclictest1302-21snmpd08:28:137
286799899116,4cyclictest6233-21gvfs-afc-volume10:14:267
286799899110,2cyclictest0-21swapper/710:26:577
286799899110,1cyclictest3338579-21ssh10:43:487
286799899110,1cyclictest3338579-21ssh10:43:487
286799399119,1cyclictest0-21swapper/612:24:176
286799399119,1cyclictest0-21swapper/607:14:206
286799399116,4cyclictest3413467-21cat11:14:146
286799399116,4cyclictest3303218-21cat10:29:156
2867993991110,1cyclictest0-21swapper/608:15:436
2867993991110,1cyclictest0-21swapper/607:12:026
286799399110,11cyclictest0-21swapper/607:25:456
286799399110,11cyclictest0-21swapper/607:22:356
286798599119,1cyclictest0-21swapper/411:04:154
286798599119,1cyclictest0-21swapper/407:59:214
286798599119,1cyclictest0-21swapper/407:49:184
286798599119,1cyclictest0-21swapper/407:49:184
286798599118,2cyclictest2922105-21kthreadcore07:34:174
2867985991110,1cyclictest0-21swapper/410:49:164
2867985991110,1cyclictest0-21swapper/410:38:524
2867985991110,1cyclictest0-21swapper/410:22:474
2867985991110,1cyclictest0-21swapper/408:39:314
2867985991110,1cyclictest0-21swapper/408:34:474
2867985991110,1cyclictest0-21swapper/408:34:474
2867985991110,1cyclictest0-21swapper/407:21:004
286798599110,11cyclictest0-21swapper/409:28:144
286798599110,0cyclictest0-21swapper/409:04:164
286799899107,2cyclictest1302-21snmpd09:55:517
286799899107,2cyclictest1302-21snmpd09:55:517
286799899107,2cyclictest0-21swapper/710:44:237
286799899106,3cyclictest1302-21snmpd12:17:407
286799899104,5cyclictest6233-21gvfs-afc-volume09:19:227
286799899100,9cyclictest1302-21snmpd11:43:547
286799899100,9cyclictest1302-21snmpd07:22:037
286799899100,1cyclictest3595183-21ssh12:27:037
286799399109,1cyclictest0-21swapper/612:20:166
286799399108,1cyclictest0-21swapper/609:39:176
286799399108,1cyclictest0-21swapper/609:24:116
286799399108,1cyclictest0-21swapper/607:39:196
286799399108,1cyclictest0-21swapper/607:34:216
286799399107,2cyclictest3110217-21cut09:09:206
286799399107,2cyclictest3086439-21expr08:59:126
286799399107,2cyclictest3056992-21/usr/sbin/munin08:44:146
286799399107,2cyclictest0-21swapper/610:24:156
286799399105,4cyclictest3067197-21cat08:49:136
286799399100,3cyclictest3602788-21kthreadcore12:29:216
286799399100,3cyclictest3050294-21kthreadcore08:39:196
286799399100,3cyclictest2944419-21kthreadcore07:44:196
286799399100,2cyclictest3019464-21grep08:24:176
286799399100,2cyclictest2992626-21kthreadcore08:09:186
286798899109,1cyclictest0-21swapper/508:32:065
286798899109,1cyclictest0-21swapper/508:09:535
286798899108,2cyclictest3494916-21kworker/u16:4+flush-8:012:02:205
286798899108,2cyclictest3494916-21kworker/u16:4+flush-8:012:02:205
286798899108,2cyclictest2891163-21kworker/u16:2+events_unbound08:19:205
286798899108,1cyclictest0-21swapper/507:54:205
286798899100,0cyclictest0-21swapper/507:23:035
286798599109,1cyclictest0-21swapper/412:28:174
286798599109,1cyclictest0-21swapper/408:30:034
286798599108,1cyclictest0-21swapper/411:54:194
286798599108,1cyclictest0-21swapper/411:39:154
286798599108,1cyclictest0-21swapper/410:09:184
286798599108,1cyclictest0-21swapper/409:49:204
286798599108,1cyclictest0-21swapper/409:09:194
286798599108,1cyclictest0-21swapper/408:59:174
286798599108,1cyclictest0-21swapper/408:54:174
286798599108,1cyclictest0-21swapper/408:14:174
286798599108,1cyclictest0-21swapper/408:04:204
286798599107,3cyclictest3385554-21kworker/u16:2+flush-8:011:29:184
28679939997,2cyclictest86-21ksoftirqd/608:34:166
28679939997,2cyclictest86-21ksoftirqd/608:34:166
28679939993,5cyclictest0-21swapper/609:49:176
28679859998,1cyclictest0-21swapper/412:21:114
28679859998,1cyclictest0-21swapper/408:09:244
28679859998,1cyclictest0-21swapper/407:29:594
28679859998,1cyclictest0-21swapper/407:12:004
28679859997,2cyclictest3300470-21kworker/u16:2+events_unbound10:44:144
28679859997,1cyclictest0-21swapper/411:59:164
28679859997,1cyclictest0-21swapper/411:59:164
28679859997,1cyclictest0-21swapper/410:29:214
28679859997,1cyclictest0-21swapper/408:44:174
28679859997,1cyclictest0-21swapper/407:54:194
28679859997,1cyclictest0-21swapper/407:24:194
28679939986,1cyclictest0-21swapper/608:19:116
28679859986,1cyclictest0-21swapper/409:59:184
28679939974,2cyclictest3095930-21cpu09:04:126
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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