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2026-04-17 - 15:17
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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 Fri Apr 17, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314075225645,8sleep40-21swapper/407:06:334
313189824914,29sleep70-21swapper/707:04:597
314098223928,8sleep50-21swapper/507:09:475
3141286993329,2cyclictest3287868-21runrttasks08:20:167
3141286993226,5cyclictest635-21systemd-journal08:19:497
3141286993126,4cyclictest3534249-21latency_hist10:14:497
314098323120,8sleep60-21swapper/607:09:486
3141276993028,2cyclictest3411978-21kworker/u16:4+flush-8:009:59:494
36314312280,1chrt3631432-21sh10:53:527
3141286992625,0cyclictest0-21swapper/712:05:057
3141286992423,0cyclictest0-21swapper/709:50:087
3141286992418,5cyclictest3164024-21latency_hist07:19:507
3141279992420,3cyclictest3619946-21kworker/u16:1+flush-8:011:24:495
3141279992420,3cyclictest3619946-21kworker/u16:1+flush-8:011:24:495
3141286992216,5cyclictest3729697-21latency_hist11:34:497
3141286992120,0cyclictest0-21swapper/710:35:357
3141286992115,5cyclictest3583172-21latency_hist10:34:497
3141279991912,7cyclictest0-21swapper/511:59:295
3141286991814,2cyclictest3754198-21latency_hist11:44:497
314128699180,16cyclictest3888773-21grep12:39:487
3141276991815,3cyclictest3619946-21kworker/u16:1+flush-8:012:15:454
314128699170,1cyclictest0-21swapper/708:10:137
314128699168,7cyclictest6895-21gmain07:50:117
3141286991613,2cyclictest1234-21snmpd10:49:177
3141286991610,5cyclictest635-21systemd-journal09:06:227
314128699160,2cyclictest3653111-21ssh11:00:127
3141280991613,3cyclictest3619946-21kworker/u16:1+flush-8:011:40:046
3141286991514,0cyclictest0-21swapper/710:55:207
3141286991512,2cyclictest0-21swapper/707:55:147
3141286991510,3cyclictest3221595-21latency_hist07:49:497
314128699150,14cyclictest0-21swapper/711:10:117
314128699150,14cyclictest0-21swapper/709:00:127
314128699150,13cyclictest0-21swapper/711:20:137
314128699150,13cyclictest0-21swapper/711:20:137
3141279991512,2cyclictest3552332-21cut10:20:075
3141279991512,2cyclictest0-21swapper/512:35:145
3141276991514,1cyclictest3269212-21kworker/u16:0+flush-8:008:24:494
3141276991514,1cyclictest0-21swapper/409:11:174
314128699148,5cyclictest3790895-21latency_hist11:59:497
314128699148,5cyclictest3317405-21latency_hist08:39:497
314128699148,5cyclictest3317405-21latency_hist08:39:497
3141286991413,0cyclictest0-21swapper/709:26:567
3141286991412,1cyclictest0-21swapper/708:55:137
3141286991411,2cyclictest635-21systemd-journal08:49:447
3141286991411,2cyclictest0-21swapper/708:24:497
3141286991411,1cyclictest3691807-21ssh11:17:377
314128699140,12cyclictest1234-21snmpd10:42:177
314128699140,12cyclictest1234-21snmpd10:42:177
3141280991413,1cyclictest0-21swapper/611:13:186
3141280991413,1cyclictest0-21swapper/609:45:486
3141280991413,1cyclictest0-21swapper/607:30:036
314128099140,14cyclictest0-21swapper/612:03:356
314128099140,14cyclictest0-21swapper/612:03:356
314128099140,14cyclictest0-21swapper/610:46:396
314128099140,13cyclictest3785495-21cut11:55:076
3141279991413,1cyclictest0-21swapper/512:24:125
3141279991413,1cyclictest0-21swapper/511:14:035
3141279991413,1cyclictest0-21swapper/510:06:535
3141279991413,1cyclictest0-21swapper/509:40:435
314127999140,1cyclictest0-21swapper/507:20:145
314127999140,14cyclictest0-21swapper/511:35:205
3141276991413,1cyclictest0-21swapper/411:34:454
3141276991413,1cyclictest0-21swapper/410:35:004
3141276991413,1cyclictest0-21swapper/409:35:054
3141276991413,1cyclictest0-21swapper/409:23:354
314127699140,1cyclictest0-21swapper/410:48:154
314127699140,14cyclictest0-21swapper/412:12:544
314127699140,14cyclictest0-21swapper/412:04:334
314127699140,14cyclictest0-21swapper/412:04:334
314127699140,14cyclictest0-21swapper/410:24:364
314127699140,14cyclictest0-21swapper/409:47:524
314127699140,0cyclictest0-21swapper/412:21:354
314128699139,3cyclictest5975-21gmain07:25:157
314128699139,3cyclictest1234-21snmpd12:12:027
314128699139,3cyclictest1234-21snmpd08:03:107
314128699136,6cyclictest6382-21gvfs-afc-volume11:07:467
314128699134,7cyclictest6101-21gmain10:15:077
3141286991312,1cyclictest3375117-21diskmemload10:21:577
3141286991310,2cyclictest1234-21snmpd09:17:597
3141286991310,2cyclictest1234-21snmpd09:17:597
314128699130,11cyclictest3842789-21ssh12:20:057
3141280991312,1cyclictest0-21swapper/612:21:156
3141280991312,1cyclictest0-21swapper/611:33:106
3141280991312,1cyclictest0-21swapper/610:23:386
3141280991312,1cyclictest0-21swapper/609:21:226
3141280991312,1cyclictest0-21swapper/608:20:116
314128099130,13cyclictest0-21swapper/611:00:236
314128099130,0cyclictest0-21swapper/612:12:256
3141279991312,1cyclictest0-21swapper/511:47:005
3141279991312,1cyclictest0-21swapper/510:44:535
3141279991312,1cyclictest0-21swapper/509:54:165
3141279991312,1cyclictest0-21swapper/509:28:065
314127999130,1cyclictest0-21swapper/508:46:195
314127999130,13cyclictest0-21swapper/512:06:045
3141276991312,1cyclictest0-21swapper/411:24:404
3141276991312,1cyclictest0-21swapper/411:24:404
3141276991312,1cyclictest0-21swapper/411:01:294
314127699130,13cyclictest0-21swapper/411:55:534
314128699129,2cyclictest1234-21snmpd12:01:137
314128699129,2cyclictest1234-21snmpd12:01:137
314128699129,2cyclictest1234-21snmpd07:40:337
314128699128,3cyclictest1234-21snmpd12:32:177
314128699128,3cyclictest1234-21snmpd12:25:087
314128699128,3cyclictest1234-21snmpd09:49:247
314128699128,3cyclictest1234-21snmpd08:29:587
314128699125,6cyclictest6382-21gvfs-afc-volume11:35:127
314128099129,3cyclictest3354809-21kworker/u16:4+flush-8:009:00:566
314128099127,4cyclictest3596699-21cat10:40:036
314128099127,4cyclictest3596699-21cat10:40:036
3141280991211,1cyclictest0-21swapper/612:31:116
3141280991211,1cyclictest0-21swapper/611:44:596
3141280991211,1cyclictest0-21swapper/610:59:256
3141280991211,1cyclictest0-21swapper/609:57:096
3141280991210,2cyclictest86-21ksoftirqd/607:40:116
314127999128,3cyclictest3347316-21cat08:55:055
3141279991211,1cyclictest0-21swapper/510:32:165
3141279991211,1cyclictest0-21swapper/508:19:125
314127999120,1cyclictest0-21swapper/507:19:085
314127699129,2cyclictest0-21swapper/411:35:064
314127699128,3cyclictest3203603-21cat07:40:054
3141276991211,1cyclictest0-21swapper/412:31:314
3141276991211,1cyclictest0-21swapper/411:45:194
3141276991211,1cyclictest0-21swapper/410:11:504
314128699119,1cyclictest0-21swapper/712:18:157
314128699118,2cyclictest1234-21snmpd10:02:467
314128699118,2cyclictest1234-21snmpd08:07:467
314128699118,2cyclictest1234-21snmpd07:21:307
314128699117,3cyclictest1234-21snmpd09:36:247
314128699117,3cyclictest1234-21snmpd09:33:277
314128699117,3cyclictest1234-21snmpd09:23:337
314128699117,3cyclictest1234-21snmpd08:52:327
314128699116,5cyclictest6382-21gvfs-afc-volume09:43:077
314128699116,4cyclictest6382-21gvfs-afc-volume11:49:017
314128699114,6cyclictest6895-21gmain10:09:357
314128099117,3cyclictest3226885-21kthreadcore07:50:086
314128099112,8cyclictest3688021-21kthreadcore11:15:086
3141280991110,1cyclictest0-21swapper/611:24:206
3141280991110,1cyclictest0-21swapper/611:24:206
3141280991110,1cyclictest0-21swapper/609:33:586
314128099110,4cyclictest3151147-21cpuspeed07:14:516
314128099110,11cyclictest0-21swapper/607:28:576
314128099110,10cyclictest3736511-21grep11:35:096
314128099110,10cyclictest3196556-21kthreadcore07:35:076
314128099110,10cyclictest3141838-21expr07:10:016
314127999117,3cyclictest3318592-21cat08:40:045
314127999116,4cyclictest3356889-21cat09:00:045
314127999116,4cyclictest3289830-21cat08:25:045
3141279991110,1cyclictest0-21swapper/510:59:425
314127699118,2cyclictest3604034-21latency10:40:104
314127699118,2cyclictest3604034-21latency10:40:104
314127699118,2cyclictest3345518-21timerandwakeup08:50:154
314127699110,11cyclictest0-21swapper/407:36:134
314128699107,2cyclictest1234-21snmpd11:29:097
314128699107,2cyclictest1234-21snmpd07:32:247
314128699106,3cyclictest1234-21snmpd11:51:347
314128699106,3cyclictest1234-21snmpd10:25:257
314128699104,5cyclictest6382-21gvfs-afc-volume08:40:137
314128699100,9cyclictest0-21swapper/709:10:187
314128699100,8cyclictest1234-21snmpd09:55:067
314128699100,8cyclictest1234-21snmpd07:10:157
314128099108,2cyclictest86-21ksoftirqd/612:05:046
314128099108,2cyclictest86-21ksoftirqd/608:05:056
314128099108,2cyclictest3346316-21kworker/u16:0+flush-8:009:25:106
314128099105,5cyclictest0-21swapper/610:30:126
314128099105,4cyclictest3767723-21cat11:50:036
314128099105,4cyclictest3584463-21cat10:35:016
314128099105,4cyclictest3526455-21grep10:10:066
314128099103,6cyclictest0-21swapper/609:50:076
314128099102,7cyclictest3710573-21kthreadcore11:25:086
314128099100,9cyclictest3852591-21grep12:25:016
314128099100,9cyclictest0-21swapper/609:40:086
314128099100,3cyclictest3310689-21kthreadcore08:35:076
314128099100,3cyclictest3310689-21kthreadcore08:35:076
314127999106,3cyclictest3203587-21cat07:40:045
314127699107,2cyclictest3560442-21kthreadcore10:25:064
31412869994,3cyclictest3197357-21kthreadcore07:35:087
31412809998,1cyclictest0-21swapper/608:59:466
31412809997,2cyclictest86-21ksoftirqd/607:55:126
31412809997,2cyclictest3411978-21kworker/u16:4+flush-8:010:00:006
31412809996,2cyclictest3289178-21grep08:25:016
31412809996,2cyclictest3164412-21/usr/sbin/munin07:20:166
31412809994,5cyclictest0-21swapper/612:14:596
31412809994,4cyclictest3559419-21grep10:25:006
31412809994,1cyclictest0-21swapper/609:10:076
31412809993,5cyclictest0-21swapper/610:05:076
31412809990,8cyclictest3627439-21kthreadcore10:50:106
31412809990,8cyclictest3534846-21grep10:15:016
31412809990,8cyclictest3437446-21tune2fs09:35:026
31412809990,8cyclictest3388321-21cstates09:15:026
31412809990,8cyclictest3388321-21cstates09:15:026
31412809990,8cyclictest3365839-21/usr/sbin/munin09:05:036
31412809990,8cyclictest3260642-21cstates08:10:026
31412809990,8cyclictest0-21swapper/608:50:016
31412809990,3cyclictest3877530-21fschecks_count12:35:036
31412809990,2cyclictest0-21swapper/608:00:066
31412799998,1cyclictest0-21swapper/509:14:425
31412799994,4cyclictest3833650-21kthreadcore12:15:075
31412799994,4cyclictest3714369-21open_inodes11:25:155
31412769997,1cyclictest0-21swapper/411:40:054
31412769997,1cyclictest0-21swapper/411:15:014
31412769997,1cyclictest0-21swapper/410:55:054
31412769997,1cyclictest0-21swapper/410:15:064
31412769997,1cyclictest0-21swapper/410:00:044
31412769997,1cyclictest0-21swapper/409:15:084
31412769997,1cyclictest0-21swapper/409:15:084
31412769997,1cyclictest0-21swapper/408:05:004
31412769997,1cyclictest0-21swapper/407:55:074
31412769997,1cyclictest0-21swapper/407:25:114
31412769997,1cyclictest0-21swapper/407:14:544
31412769996,2cyclictest0-21swapper/412:05:094
31412769996,2cyclictest0-21swapper/411:50:084
31412769995,3cyclictest3163182-21kworker/u16:4+flush-8:007:20:524
31412769994,4cyclictest3853265-21grep12:25:044
31412769994,4cyclictest3450101-21tr09:40:044
31412769994,4cyclictest3425190-21tune2fs09:30:034
31412769994,4cyclictest3335660-21ntp_states08:45:134
31412809986,2cyclictest86-21ksoftirqd/611:04:576
31412809985,2cyclictest3271569-21cut08:15:066
31412809984,3cyclictest3329459-21kthreadcore08:45:066
31412809984,3cyclictest3212963-21tune2fs07:45:016
31412809983,4cyclictest3321584-21kthreadcore08:40:076
31412809983,4cyclictest3303062-21grep08:30:086
31412799986,1cyclictest0-21swapper/511:05:025
31412799986,1cyclictest0-21swapper/511:00:085
31412799986,1cyclictest0-21swapper/510:25:065
31412799986,1cyclictest0-21swapper/509:15:025
31412799986,1cyclictest0-21swapper/509:15:025
31412799986,1cyclictest0-21swapper/509:05:065
31412799984,3cyclictest3408690-21wc09:20:155
31412799984,3cyclictest3280271-21cat08:20:045
31412799983,4cyclictest3792093-21cut12:00:015
31412799983,4cyclictest3792093-21cut12:00:015
31412799983,4cyclictest3470316-21sed09:45:175
31412799983,4cyclictest3440823-21grep09:35:075
31412799983,4cyclictest3257245-21cut08:05:085
31412799983,4cyclictest3224855-21grep07:50:075
31412799983,4cyclictest3213618-21cut07:45:045
31412799983,4cyclictest3178343-21cut07:25:105
31412799980,4cyclictest3529339-21kthreadcore10:10:085
31412769986,1cyclictest0-21swapper/412:35:074
31412769986,1cyclictest0-21swapper/410:05:084
31412769986,1cyclictest0-21swapper/409:50:054
31412769986,1cyclictest0-21swapper/408:55:024
31412769986,1cyclictest0-21swapper/408:40:014
31412769986,1cyclictest0-21swapper/408:00:014
31412769986,1cyclictest0-21swapper/407:30:024
31412769986,1cyclictest0-21swapper/407:10:064
31412769985,2cyclictest0-21swapper/408:30:074
31412769985,2cyclictest0-21swapper/408:25:044
31412769984,3cyclictest3625917-21kthreadcore10:50:104
31412769983,4cyclictest3710318-21kthreadcore11:25:084
31412769983,4cyclictest3677951-21sed11:10:164
31412769983,4cyclictest3580313-21sed10:30:174
31412769983,4cyclictest3413361-21sed09:25:064
31412769983,4cyclictest3366390-21fschecks_count09:05:034
31412769983,4cyclictest3262777-21grep08:10:074
31412769983,4cyclictest3212674-21cat07:45:004
31412769980,7cyclictest0-21swapper/407:50:084
31412799975,1cyclictest0-21swapper/512:25:045
31412799975,1cyclictest0-21swapper/510:50:045
31412799975,1cyclictest0-21swapper/510:40:015
31412799975,1cyclictest0-21swapper/510:40:015
31412799975,1cyclictest0-21swapper/509:55:115
31412799975,1cyclictest0-21swapper/508:50:055
31412799975,1cyclictest0-21swapper/508:30:015
31412799974,2cyclictest3817121-21kthreadcore12:10:045
31412799974,2cyclictest3767070-21cpuspeed_turbos11:50:015
31412799974,2cyclictest3742634-21cpuspeed_turbos11:40:015
31412799973,3cyclictest3865607-21irqcore12:30:065
31412799973,3cyclictest3590817-21cut10:35:075
31412799973,3cyclictest3309924-21cut08:35:075
31412799973,3cyclictest3309924-21cut08:35:075
31412799973,3cyclictest3262272-21grep08:10:075
31412799973,3cyclictest3195726-21cut07:35:065
31412799973,3cyclictest3184175-21tune2fs07:30:025
31412799972,4cyclictest3685233-21cut11:15:065
31412799972,4cyclictest3498564-21diskstats10:00:005
31412799972,4cyclictest3428565-21cut09:30:085
31412799972,4cyclictest3241420-21expr08:00:015
31412799972,4cyclictest3231812-21grep07:55:035
31412799972,4cyclictest3142363-21sed07:10:055
31412799970,7cyclictest3535330-21grep10:15:035
31412769974,2cyclictest3309371-21irqcore08:35:064
31412769974,2cyclictest3309371-21irqcore08:35:064
31412769974,2cyclictest3270300-21cat08:15:024
31412769973,3cyclictest3656973-21cat11:05:004
31412769973,3cyclictest3356140-21cpu09:00:014
31412799963,2cyclictest3718901-21irqcore11:30:055
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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