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2026-05-05 - 00:05
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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 Mon May 04, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7248782980,1sleep7724879-21expr11:33:557
138642996562,2cyclictest602232-21kworker/u16:1+events_unbound10:43:574
138642996562,2cyclictest588395-21kworker/u16:4+flush-8:010:38:574
138642995855,2cyclictest4067447-21kworker/u16:4+events_unbound07:38:574
138642995855,2cyclictest4067447-21kworker/u16:4+events_unbound07:38:574
13833525848,7sleep40-21swapper/407:08:354
138648995451,2cyclictest352279-21kworker/u16:1+events_unbound08:59:106
138642995250,2cyclictest772646-21kworker/u16:3+flush-8:012:03:574
138648995149,2cyclictest380990-21kworker/u16:2+events_unbound10:24:096
138648995148,2cyclictest362378-21kworker/u16:3+events_unbound09:24:096
138648995048,2cyclictest286315-21kworker/u16:0+events_unbound09:04:116
138648994947,2cyclictest380990-21kworker/u16:2+events_unbound10:04:136
138648994946,2cyclictest772646-21kworker/u16:3+events_unbound12:08:566
138648994846,2cyclictest90620-21kworker/u16:1+flush-8:007:33:576
138642994845,2cyclictest698776-21kworker/u16:4+flush-8:011:38:574
138642994845,2cyclictest602232-21kworker/u16:1+flush-8:010:48:574
138648994745,2cyclictest830419-21kworker/u16:1+events_unbound12:28:586
138648994745,2cyclictest830419-21kworker/u16:1+events_unbound12:28:586
138642994745,2cyclictest698776-21kworker/u16:4+events_unbound11:48:584
138642994745,2cyclictest698776-21kworker/u16:4+events_unbound11:48:584
138648994644,2cyclictest190396-21kworker/u16:2+flush-8:008:03:576
138648994543,2cyclictest684444-21kworker/u16:2+events_unbound11:34:176
138648994543,2cyclictest380990-21kworker/u16:2+events_unbound09:33:566
138648994441,2cyclictest380990-21kworker/u16:2+flush-8:010:19:126
138642994442,2cyclictest380990-21kworker/u16:2+events_unbound09:53:564
138652994337,5cyclictest372247-21latency_hist09:08:427
138648994240,2cyclictest698776-21kworker/u16:4+events_unbound11:43:106
138648994240,2cyclictest468622-21kworker/u16:1+events_unbound10:00:016
138648994139,2cyclictest772646-21kworker/u16:3+flush-8:012:14:156
138642994139,2cyclictest698776-21kworker/u16:4+events_unbound11:44:094
138648994038,2cyclictest602232-21kworker/u16:1+events_unbound11:13:596
138648994038,2cyclictest588395-21kworker/u16:4+events_unbound10:36:266
138648994038,2cyclictest521056-21kworker/u16:0+events_unbound12:20:576
138648994038,2cyclictest4067447-21kworker/u16:4+flush-8:007:39:116
138648994038,2cyclictest4067447-21kworker/u16:4+flush-8:007:39:116
138642994037,2cyclictest362378-21kworker/u16:3+flush-8:009:58:574
1381012403,31sleep70-21swapper/707:05:187
138648993936,2cyclictest380990-21kworker/u16:2+flush-8:009:53:586
138648993836,2cyclictest772645-21kworker/u16:2+events_unbound11:55:546
138648993836,2cyclictest698776-21kworker/u16:4+events_unbound11:26:536
138648993836,2cyclictest684444-21kworker/u16:2+events_unbound11:30:536
138648993836,2cyclictest602232-21kworker/u16:1+events_unbound10:58:136
138648993836,2cyclictest352279-21kworker/u16:1+events_unbound09:13:266
138648993836,2cyclictest257752-21kworker/u16:3+flush-8:008:19:076
138648993735,2cyclictest711969-21kworker/u16:1+events_unbound11:52:086
138648993735,2cyclictest711969-21kworker/u16:1+events_unbound11:52:086
138648993735,2cyclictest362378-21kworker/u16:3+flush-8:009:44:146
138648993735,2cyclictest362378-21kworker/u16:3+events_unbound10:08:566
138648993734,2cyclictest602232-21kworker/u16:1+flush-8:010:48:556
138642993734,2cyclictest380990-21kworker/u16:2+flush-8:009:53:414
138648993634,2cyclictest772646-21kworker/u16:3+events_unbound12:04:266
138648993634,2cyclictest521056-21kworker/u16:0+events_unbound10:30:386
138648993634,2cyclictest380990-21kworker/u16:2+flush-8:009:29:106
138648993633,2cyclictest602232-21kworker/u16:1+events_unbound11:03:446
138648993633,2cyclictest588395-21kworker/u16:4+flush-8:010:39:016
138648993633,2cyclictest362378-21kworker/u16:3+flush-8:009:13:576
138642993634,2cyclictest772645-21kworker/u16:2+flush-8:012:13:574
138648993533,2cyclictest830419-21kworker/u16:1+events_unbound12:24:526
138648993533,2cyclictest626550-21kworker/u16:2+events_unbound11:00:186
138648993533,2cyclictest521056-21kworker/u16:0+events_unbound12:00:536
138648993533,2cyclictest521056-21kworker/u16:0+events_unbound11:11:336
138648993533,2cyclictest521056-21kworker/u16:0+events_unbound11:11:336
138648993533,2cyclictest468622-21kworker/u16:1+events_unbound09:51:586
138648993533,2cyclictest380990-21kworker/u16:2+events_unbound09:41:136
138648993533,2cyclictest190396-21kworker/u16:2+flush-8:007:54:056
138648993532,2cyclictest90620-21kworker/u16:1+events_unbound07:48:556
138648993432,2cyclictest772646-21kworker/u16:3+events_unbound12:37:016
138648993432,2cyclictest602232-21kworker/u16:1+events_unbound10:48:296
138648993432,2cyclictest521056-21kworker/u16:0+events_unbound11:46:456
138648993432,2cyclictest286315-21kworker/u16:0+flush-8:008:34:096
138642993432,2cyclictest772645-21kworker/u16:2+events_unbound11:59:124
138642993432,2cyclictest362378-21kworker/u16:3+events_unbound09:23:564
138642993431,2cyclictest286315-21kworker/u16:0+events_unbound08:49:054
13827923424,7sleep50-21swapper/507:07:485
138648993330,2cyclictest319258-21kworker/u16:2+flush-8:008:43:576
138642993331,2cyclictest602232-21kworker/u16:1+events_unbound10:59:144
138642993331,2cyclictest4067447-21kworker/u16:4+flush-8:008:28:424
138642993330,3cyclictest362378-21kworker/u16:3+flush-8:009:33:594
138648993229,2cyclictest684444-21kworker/u16:2+events_unbound11:18:436
138648993229,2cyclictest257752-21kworker/u16:3+events_unbound08:08:556
138642993230,2cyclictest521056-21kworker/u16:0+flush-8:011:09:134
138642993230,2cyclictest521056-21kworker/u16:0+flush-8:011:09:134
138642993229,2cyclictest190396-21kworker/u16:2+flush-8:007:54:134
13818523222,7sleep60-21swapper/607:06:296
138648993129,2cyclictest4067447-21kworker/u16:4+flush-8:008:24:126
138648993129,2cyclictest137422-21kworker/u16:0+flush-8:007:14:136
138648993128,2cyclictest90620-21kworker/u16:1+flush-8:007:58:596
138642993129,2cyclictest286315-21kworker/u16:0+flush-8:008:34:064
138648993028,2cyclictest286315-21kworker/u16:0+events_unbound09:18:456
138648993028,2cyclictest137422-21kworker/u16:0+events_unbound07:18:556
138642993028,2cyclictest772646-21kworker/u16:3+events_unbound11:56:534
138652992924,4cyclictest493164-21latency_hist09:58:427
138648992927,2cyclictest521056-21kworker/u16:0+events_unbound10:14:116
138648992927,2cyclictest4067447-21kworker/u16:4+events_unbound08:32:266
138642992826,2cyclictest830419-21kworker/u16:1+events_unbound12:28:214
138642992826,2cyclictest711969-21kworker/u16:1+events_unbound11:38:214
138642992826,2cyclictest362378-21kworker/u16:3+events_unbound09:14:114
5884952270,1chrt588494-21ssh10:36:007
2376432270,1sleep50-21swapper/507:54:115
138648992725,2cyclictest90620-21kworker/u16:1+events_unbound07:48:066
138648992725,2cyclictest137422-21kworker/u16:0+flush-8:007:09:046
138642992725,2cyclictest576480-21kworker/u16:3+flush-8:010:35:404
138642992725,2cyclictest286315-21kworker/u16:0+events_unbound09:39:144
138642992725,2cyclictest137422-21kworker/u16:0+events_unbound07:14:104
6679012260,1chrt667903-21kthreadcore11:09:027
6679012260,1chrt667903-21kthreadcore11:09:027
138648992624,2cyclictest137422-21kworker/u16:0+flush-8:007:29:016
138642992624,2cyclictest90620-21kworker/u16:1+flush-8:007:44:094
138652992519,5cyclictest868747-21latency_hist12:33:417
138652992519,5cyclictest868747-21latency_hist12:33:417
138645992519,5cyclictest286315-21kworker/u16:0+flush-8:009:23:425
138642992523,2cyclictest521056-21kworker/u16:0+flush-8:011:04:134
138642992523,2cyclictest521056-21kworker/u16:0+events_unbound10:54:094
138642992523,2cyclictest468622-21kworker/u16:1+events_unbound09:48:214
138642992523,2cyclictest362378-21kworker/u16:3+flush-8:009:29:384
138652992417,5cyclictest635-21systemd-journal07:38:427
138642992422,2cyclictest286315-21kworker/u16:0+flush-8:009:19:014
138642992422,2cyclictest286315-21kworker/u16:0+events_unbound08:54:024
138642992421,2cyclictest698776-21kworker/u16:4+events_unbound11:26:574
138652992318,4cyclictest456901-21latency_hist09:43:417
13865299230,21cyclictest5997-21gnome-software11:22:227
138648992321,2cyclictest90620-21kworker/u16:1+events_unbound07:28:066
138642992321,2cyclictest830419-21kworker/u16:1+flush-8:012:29:124
138642992321,2cyclictest830419-21kworker/u16:1+flush-8:012:29:124
138642992321,2cyclictest649314-21kworker/u16:3+flush-8:011:14:534
138642992319,3cyclictest257752-21kworker/u16:3+flush-8:008:09:134
138652992216,5cyclictest638703-21latency_hist10:58:427
138648992220,2cyclictest286315-21kworker/u16:0+flush-8:008:55:056
138642992220,2cyclictest684444-21kworker/u16:2+events_unbound11:29:374
138648992119,2cyclictest319258-21kworker/u16:2+events_unbound08:40:036
138648992119,2cyclictest257752-21kworker/u16:3+events_unbound08:17:526
138642992119,2cyclictest830419-21kworker/u16:1+events_unbound12:38:384
138642992119,2cyclictest772645-21kworker/u16:2+events_unbound12:08:544
138642992119,2cyclictest521056-21kworker/u16:0+events_unbound10:26:574
138642992119,2cyclictest319258-21kworker/u16:2+flush-8:008:44:024
138642992119,2cyclictest286315-21kworker/u16:0+flush-8:008:29:074
7920192200,1chrt792020-21kthreadcore11:59:037
138652992017,2cyclictest256411-21ntpq08:04:087
138642992018,2cyclictest521056-21kworker/u16:0+events_unbound12:21:134
138652991915,3cyclictest1234-21snmpd11:48:527
138652991915,3cyclictest1234-21snmpd11:48:527
138645991915,3cyclictest362378-21kworker/u16:3+flush-8:009:28:105
138642991917,2cyclictest649314-21kworker/u16:3+flush-8:011:18:524
138642991917,2cyclictest362378-21kworker/u16:3+flush-8:009:03:564
138642991917,2cyclictest286315-21kworker/u16:0+flush-8:008:39:134
138642991916,2cyclictest4067447-21kworker/u16:4+flush-8:007:08:584
13865299180,16cyclictest635-21systemd-journal10:43:427
138642991817,1cyclictest521056-21kworker/u16:0+events_unbound10:23:184
138642991817,1cyclictest380990-21kworker/u16:2+events_unbound10:05:274
138642991816,2cyclictest521056-21kworker/u16:0+events_unbound10:12:064
138642991816,2cyclictest190396-21kworker/u16:2+flush-8:007:59:094
138652991713,3cyclictest1234-21snmpd08:48:427
138648991715,2cyclictest286315-21kworker/u16:0+events_unbound08:50:526
138642991715,2cyclictest380990-21kworker/u16:2+events_unbound10:29:374
138642991715,2cyclictest352279-21kworker/u16:1+events_unbound09:12:064
138652991614,1cyclictest0-21swapper/711:14:077
138652991612,3cyclictest1234-21snmpd07:40:197
138652991612,3cyclictest1234-21snmpd07:40:197
138642991614,2cyclictest90620-21kworker/u16:1+events_unbound07:28:224
13865299159,5cyclictest635-21systemd-journal10:08:427
138652991513,1cyclictest0-21swapper/711:04:137
138652991511,3cyclictest1234-21snmpd11:57:347
138645991513,2cyclictest468622-21kworker/u16:1+flush-8:009:59:115
138645991513,2cyclictest286315-21kworker/u16:0+flush-8:008:54:055
138645991512,2cyclictest772646-21kworker/u16:3+flush-8:011:53:585
138642991513,2cyclictest468622-21kworker/u16:1+flush-8:010:13:584
138652991413,0cyclictest0-21swapper/710:29:257
138652991412,1cyclictest0-21swapper/708:49:027
138652991410,3cyclictest1234-21snmpd11:24:397
13865299140,12cyclictest171044-21turbostat07:23:427
138645991413,1cyclictest0-21swapper/512:19:195
13864599140,1cyclictest0-21swapper/509:10:265
138642991413,1cyclictest0-21swapper/408:04:024
138642991412,2cyclictest90620-21kworker/u16:1+events_unbound07:29:134
4944572130,0sleep7494458-21/usr/sbin/munin09:58:577
13865299139,3cyclictest1234-21snmpd12:20:027
13865299139,3cyclictest1234-21snmpd08:29:057
13865299139,3cyclictest1234-21snmpd07:31:317
13865299138,4cyclictest210322-21tune2fs07:43:567
13865299138,4cyclictest1234-21snmpd09:09:547
13865299137,5cyclictest820526-21latency_hist12:13:427
138652991311,1cyclictest0-21swapper/712:04:087
138652991311,1cyclictest0-21swapper/709:34:107
138652991310,2cyclictest0-21swapper/711:28:577
138652991310,2cyclictest0-21swapper/707:13:437
138645991312,1cyclictest0-21swapper/509:38:395
138642991311,2cyclictest190396-21kworker/u16:2+flush-8:007:34:244
13865299129,2cyclictest1234-21snmpd09:23:547
13865299129,2cyclictest1234-21snmpd08:37:487
13865299128,3cyclictest1234-21snmpd12:18:057
13865299128,3cyclictest1234-21snmpd09:21:007
13865299128,3cyclictest1234-21snmpd08:12:087
13865299128,3cyclictest1234-21snmpd07:28:167
13865299126,5cyclictest6514-21gmain10:24:327
138652991211,0cyclictest0-21swapper/708:24:057
138652991210,1cyclictest372249-21diskmemload10:53:427
138652991210,1cyclictest0-21swapper/711:39:137
13865299120,11cyclictest1234-21snmpd08:42:097
13865299119,1cyclictest0-21swapper/710:39:117
13865299119,1cyclictest0-21swapper/709:28:547
13865299118,2cyclictest0-21swapper/710:58:577
13865299118,2cyclictest0-21swapper/710:03:557
13865299118,2cyclictest0-21swapper/709:48:557
13865299117,3cyclictest239336-21cat07:58:577
13865299117,3cyclictest1234-21snmpd10:14:587
13865299117,3cyclictest1234-21snmpd09:17:037
13865299117,3cyclictest1234-21snmpd08:54:037
13865299117,3cyclictest1234-21snmpd07:57:477
13865299116,4cyclictest757096-21ntpq11:44:107
13865299116,4cyclictest6382-21gvfs-afc-volume08:19:077
13865299116,4cyclictest1234-21snmpd08:58:457
13865299110,9cyclictest870038-21cat12:33:577
13865299110,9cyclictest458185-21cat09:43:587
138645991110,1cyclictest521056-21kworker/u16:0+flush-8:011:48:595
138645991110,1cyclictest521056-21kworker/u16:0+flush-8:011:48:595
138645991110,1cyclictest0-21swapper/508:21:435
13864599110,1cyclictest0-21swapper/507:33:105
13864599110,11cyclictest0-21swapper/507:34:255
13864299118,2cyclictest90620-21kworker/u16:1+flush-8:008:13:544
13865299107,2cyclictest1234-21snmpd08:14:057
13865299107,2cyclictest0-21swapper/710:20:297
13865299104,4cyclictest219356-21cpu07:48:537
13865299104,4cyclictest143287-21grep07:09:017
13865299103,6cyclictest6382-21gvfs-afc-volume12:24:077
1386459996,2cyclictest6930-21gnome-software10:35:505
1386459990,9cyclictest0-21swapper/510:28:335
1386459986,2cyclictest684444-21kworker/u16:2+flush-8:011:18:415
1386459985,3cyclictest362378-21kworker/u16:3+flush-8:009:58:375
1386459985,2cyclictest6930-21gnome-software11:22:225
1386459983,4cyclictest142052-21grep07:09:005
1386459982,2cyclictest0-21swapper/511:29:165
1386459980,1cyclictest0-21swapper/508:38:335
1386459980,1cyclictest0-21swapper/507:28:335
1386459974,2cyclictest3534702sleep508:58:545
1386459973,3cyclictest151028-21cut07:13:455
1386459973,3cyclictest1-21systemd10:48:425
1386459970,3cyclictest0-21swapper/510:30:405
1386459970,1cyclictest0-21swapper/512:14:175
1386459970,1cyclictest0-21swapper/511:04:295
1386429975,2cyclictest286315-21kworker/u16:0+flush-8:008:59:134
1386429974,2cyclictest171044-21turbostat07:23:424
1386459965,1cyclictest626550-21kworker/u16:2+nfsiod10:55:565
1386459964,2cyclictest468622-21kworker/u16:1+nfsiod10:15:575
1386459964,1cyclictest0-21swapper/511:41:305
1386459963,1cyclictest681rcuog/411:26:035
1386459962,1cyclictest991rcuop/711:48:165
1386459962,1cyclictest681rcuog/412:11:545
1386459961,1cyclictest201rcu_preempt11:01:015
1386459960,5cyclictest0-21swapper/512:01:545
1386459960,5cyclictest0-21swapper/508:30:285
1386459960,4cyclictest0-21swapper/508:43:425
1386459960,3cyclictest991rcuop/710:49:455
1386459960,1cyclictest0-21swapper/512:36:045
1386459960,1cyclictest0-21swapper/512:31:085
1386459960,1cyclictest0-21swapper/512:31:085
1386459960,1cyclictest0-21swapper/509:16:235
1386459960,1cyclictest0-21swapper/508:14:235
1386429964,2cyclictest190396-21kworker/u16:2+events_unbound07:49:184
1386459954,1cyclictest14150irq/27-ahci[0000:00:1f.2]07:49:055
1386459951,1cyclictest681rcuog/409:48:515
1386459951,1cyclictest681rcuog/409:43:525
1386459951,1cyclictest681rcuog/409:03:585
1386459951,1cyclictest201rcu_preempt11:09:045
1386459951,1cyclictest201rcu_preempt11:09:045
1386459951,1cyclictest201rcu_preempt08:23:535
1386459950,4cyclictest845058-21chrt12:23:465
1386459950,4cyclictest726158-21chrt11:34:015
1386459950,4cyclictest599164-21chrt10:39:115
1386459950,4cyclictest541931-21taskset10:18:435
1386459950,4cyclictest517838-21chrt10:08:495
1386459950,4cyclictest515057-21chrt10:04:245
1386459950,4cyclictest445273-21taskset09:38:525
1386459950,4cyclictest430399-21taskset09:29:225
1386459950,4cyclictest342736-21chrt08:49:075
1386459950,4cyclictest333774-21chrt08:46:035
1386459950,4cyclictest266816-21chrt08:11:575
1386459950,4cyclictest255349-21chrt08:04:045
1386459950,4cyclictest238537-21taskset07:58:515
1386459950,4cyclictest212602-21taskset07:44:015
1386459950,4cyclictest209052-21chrt07:39:285
1386459950,4cyclictest209052-21chrt07:39:285
1386459950,4cyclictest161844-21chrt07:18:535
1386459950,3cyclictest0-21swapper/512:04:025
1386429953,2cyclictest90620-21kworker/u16:1+events_unbound08:19:054
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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