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2026-07-23 - 01:12
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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 Thu Jul 23, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11942392970,1sleep71194240-21sh00:27:047
9282152750,1sleep7928214-21ssh22:25:557
49711426336,8sleep40-21swapper/419:09:224
49684125419,30sleep70-21swapper/719:05:327
49698124636,7sleep50-21swapper/519:07:305
497394994442,2cyclictest893951-21kworker/u16:0+events_unbound22:59:256
497391993935,3cyclictest807900-21latency_hist21:39:245
497394993836,2cyclictest1058282-21kworker/u16:0+flush-8:000:19:396
497387993735,2cyclictest1205379-21kworker/u16:0+flush-8:000:34:234
497394993633,2cyclictest433182-21kworker/u16:0+events_unbound21:19:386
497397993533,1cyclictest0-21swapper/722:16:517
497387993533,2cyclictest756680-21kworker/u16:2+flush-8:021:39:594
497387993532,3cyclictest959718-21kworker/u16:2+flush-8:000:34:304
49685823525,7sleep60-21swapper/619:05:476
497387993432,2cyclictest973245-21kworker/u16:4+events_unbound23:09:184
497387993230,2cyclictest893951-21kworker/u16:0+flush-8:022:19:594
497387993230,2cyclictest795965-21kworker/u16:1+events_unbound21:56:344
497387993229,2cyclictest936307-21kworker/u16:1+flush-8:023:19:344
497397993130,0cyclictest0-21swapper/723:57:347
497397993130,0cyclictest0-21swapper/721:12:357
497397993128,2cyclictest734580-21diskmemload22:48:357
497387993129,2cyclictest959718-21kworker/u16:2+events_unbound23:39:474
497387993129,2cyclictest959718-21kworker/u16:2+events_unbound22:49:354
497387993129,2cyclictest1058282-21kworker/u16:0+events_unbound23:59:454
497387993129,2cyclictest1058282-21kworker/u16:0+events_unbound23:54:304
497387993128,2cyclictest1095339-21kworker/u16:1+events_unbound00:14:264
497387993128,2cyclictest1058282-21kworker/u16:0+flush-8:023:34:464
497394993028,2cyclictest936307-21kworker/u16:1+events_unbound23:19:476
497394992927,2cyclictest893952-21kworker/u16:3+flush-8:022:14:496
497387992927,2cyclictest795965-21kworker/u16:1+flush-8:021:49:344
497387992927,2cyclictest433182-21kworker/u16:0+events_unbound19:59:424
497397992827,0cyclictest0-21swapper/721:53:347
497397992826,1cyclictest983038-21ssh22:55:457
497397992826,1cyclictest0-21swapper/723:39:347
497397992825,1cyclictest794281-21ssh21:31:487
497394992826,2cyclictest856991-21kworker/u16:5+flush-8:022:04:196
497394992826,2cyclictest433182-21kworker/u16:0+events_unbound21:04:586
497394992826,2cyclictest1095339-21kworker/u16:1+flush-8:000:24:466
497387992826,2cyclictest936307-21kworker/u16:1+flush-8:023:18:534
497387992826,2cyclictest844788-21kworker/u16:0+events_unbound22:04:344
497387992826,2cyclictest676581-21kworker/u16:4+flush-8:021:16:114
497397992726,0cyclictest0-21swapper/723:53:357
497394992725,2cyclictest973245-21kworker/u16:4+events_unbound23:54:386
497394992725,2cyclictest433182-21kworker/u16:0+events_unbound19:29:466
497387992725,2cyclictest1095339-21kworker/u16:1+flush-8:000:23:344
497387992725,2cyclictest1058282-21kworker/u16:0+events_unbound23:46:354
497397992625,0cyclictest0-21swapper/723:26:347
497397992625,0cyclictest0-21swapper/723:11:027
497397992625,0cyclictest0-21swapper/723:11:027
497397992625,0cyclictest0-21swapper/723:01:347
497397992625,0cyclictest0-21swapper/721:16:267
497387992624,2cyclictest893951-21kworker/u16:0+events_unbound22:45:354
497387992624,2cyclictest795965-21kworker/u16:1+events_unbound21:44:584
497387992624,2cyclictest756680-21kworker/u16:2+events_unbound21:29:344
497397992524,0cyclictest0-21swapper/722:50:347
497397992524,0cyclictest0-21swapper/722:41:337
497397992524,0cyclictest0-21swapper/719:09:397
497397992523,1cyclictest783390-21ssh21:29:147
497397992522,1cyclictest880568-21sh22:08:067
497394992523,2cyclictest973245-21kworker/u16:4+events_unbound23:29:576
497394992523,2cyclictest433182-21kworker/u16:0+events_unbound21:24:506
497387992523,2cyclictest893951-21kworker/u16:0+events_unbound22:55:354
497387992523,2cyclictest735904-21kworker/u16:1+events_unbound21:12:184
497387992522,2cyclictest626722-21kworker/u16:1+flush-8:020:34:404
497387992522,2cyclictest626722-21kworker/u16:1+events_unbound20:54:374
497394992422,2cyclictest959718-21kworker/u16:2+events_unbound23:24:446
497394992422,2cyclictest893952-21kworker/u16:3+events_unbound22:36:536
497394992422,2cyclictest676581-21kworker/u16:4+flush-8:020:44:476
497394992422,2cyclictest676581-21kworker/u16:4+events_unbound21:16:306
497387992422,2cyclictest985197-21kworker/u16:5+events_unbound23:03:304
497387992422,2cyclictest959718-21kworker/u16:2+events_unbound00:27:224
497387992422,2cyclictest856991-21kworker/u16:5+flush-8:022:01:354
497387992422,2cyclictest795965-21kworker/u16:1+events_unbound22:09:594
497387992422,2cyclictest1095339-21kworker/u16:1+flush-8:000:07:424
497387992421,2cyclictest477665-21kworker/u16:2+events_unbound19:19:264
497397992322,0cyclictest0-21swapper/700:02:547
49739799230,21cyclictest916419-21ssh22:21:427
497394992321,2cyclictest676581-21kworker/u16:4+events_unbound22:05:356
497394992319,3cyclictest372951-21kworker/u16:4+flush-8:020:04:466
497387992321,2cyclictest959718-21kworker/u16:2+flush-8:023:33:344
497387992321,2cyclictest936307-21kworker/u16:1+events_unbound23:26:594
497397992221,0cyclictest0-21swapper/719:54:357
497397992221,0cyclictest0-21swapper/700:34:427
497397992220,1cyclictest1182194-21ssh00:22:157
497394992221,1cyclictest676581-21kworker/u16:4+events_unbound21:46:536
497387992220,2cyclictest973245-21kworker/u16:4+events_unbound23:51:344
497387992220,2cyclictest930246-21kworker/u16:4+flush-8:022:36:344
497387992220,2cyclictest759278-21kworker/u16:3+events_unbound21:26:594
497387992220,2cyclictest433182-21kworker/u16:0+flush-8:021:35:184
497387992220,2cyclictest433182-21kworker/u16:0+events_unbound21:19:434
497387992220,2cyclictest1095339-21kworker/u16:1+events_unbound00:13:554
497397992120,0cyclictest0-21swapper/700:11:467
497397992119,1cyclictest930880-21ssh22:30:097
497397992119,1cyclictest734580-21diskmemload23:37:017
497397992119,1cyclictest0-21swapper/719:29:487
497397992118,2cyclictest1302-21snmpd22:09:447
497394992119,2cyclictest676581-21kworker/u16:4+events_unbound21:12:306
497394992119,2cyclictest653249-21kworker/u16:2+flush-8:020:29:406
497394992119,2cyclictest653249-21kworker/u16:2+flush-8:020:29:406
497394992119,2cyclictest1058282-21kworker/u16:0+flush-8:023:47:346
497387992119,2cyclictest893952-21kworker/u16:3+flush-8:022:27:114
497387992118,2cyclictest486771-21kworker/u16:3+events_unbound19:09:284
497397992018,1cyclictest819114-21ssh21:42:357
497394992018,2cyclictest959718-21kworker/u16:2+events_unbound23:14:346
497394992018,2cyclictest372951-21kworker/u16:4+events_unbound19:59:386
497394992018,2cyclictest1095339-21kworker/u16:1+events_unbound00:12:076
497394992018,2cyclictest1058282-21kworker/u16:0+events_unbound00:01:306
497387992018,2cyclictest936307-21kworker/u16:1+flush-8:023:09:464
497387992018,2cyclictest936307-21kworker/u16:1+flush-8:023:09:464
497397991918,0cyclictest0-21swapper/721:46:427
497397991917,1cyclictest868704-21sh22:03:517
497397991913,4cyclictest648-21systemd-journal19:29:197
497394991917,2cyclictest973245-21kworker/u16:4+events_unbound23:09:376
497394991917,2cyclictest973245-21kworker/u16:4+events_unbound23:09:376
497394991917,2cyclictest893951-21kworker/u16:0+flush-8:022:44:506
497394991917,2cyclictest1095339-21kworker/u16:1+events_unbound00:07:066
497394991914,4cyclictest933126-21cat22:34:196
497387991917,2cyclictest893952-21kworker/u16:3+flush-8:022:29:404
497387991917,2cyclictest893952-21kworker/u16:3+events_unbound22:15:064
49739799188,8cyclictest6050-21gmain19:59:507
497397991817,0cyclictest0-21swapper/720:14:377
497397991816,1cyclictest770130-21ssh21:22:227
497397991816,1cyclictest1033089-21ssh23:17:507
497397991813,3cyclictest801528-21cut21:34:457
497394991816,2cyclictest973245-21kworker/u16:4+flush-8:022:59:476
497394991816,2cyclictest756680-21kworker/u16:2+events_unbound21:51:356
497387991816,2cyclictest893952-21kworker/u16:3+flush-8:022:44:144
497387991815,2cyclictest433182-21kworker/u16:0+events_unbound19:29:424
497387991815,2cyclictest372951-21kworker/u16:4+flush-8:019:54:534
497397991716,0cyclictest0-21swapper/723:08:037
497397991716,0cyclictest0-21swapper/700:30:547
497397991716,0cyclictest0-21swapper/700:15:297
497394991715,2cyclictest959718-21kworker/u16:2+events_unbound22:54:216
497394991715,2cyclictest756680-21kworker/u16:2+flush-8:021:39:406
497394991715,2cyclictest433182-21kworker/u16:0+events_unbound19:19:526
9992782160,1sleep60-21swapper/623:04:416
497397991615,0cyclictest0-21swapper/721:55:147
497397991615,0cyclictest0-21swapper/700:08:427
497394991614,2cyclictest1205379-21kworker/u16:0+flush-8:000:37:346
497394991614,2cyclictest1058282-21kworker/u16:0+events_unbound00:18:346
497387991614,2cyclictest626722-21kworker/u16:1+flush-8:020:59:484
49739799157,7cyclictest5834-21gmain19:34:467
497397991514,0cyclictest0-21swapper/723:30:147
497397991514,0cyclictest0-21swapper/723:21:427
497397991514,0cyclictest0-21swapper/722:35:107
497397991513,1cyclictest0-21swapper/720:34:417
497397991513,1cyclictest0-21swapper/720:25:357
497394991513,2cyclictest973245-21kworker/u16:4+flush-8:023:37:506
497394991513,2cyclictest433182-21kworker/u16:0+flush-8:019:09:536
497394991513,2cyclictest1095339-21kworker/u16:1+flush-8:000:33:386
497391991514,1cyclictest0-21swapper/500:09:445
497391991513,1cyclictest0-21swapper/520:54:425
497391991511,3cyclictest905765-21cat22:19:245
497387991513,2cyclictest666309-21kworker/u16:3+events_unbound20:33:344
497387991513,2cyclictest666309-21kworker/u16:3+events_unbound20:33:344
497387991513,2cyclictest626722-21kworker/u16:1+flush-8:020:39:404
497387991513,2cyclictest477665-21kworker/u16:2+flush-8:019:24:554
497397991413,0cyclictest0-21swapper/720:14:247
497397991413,0cyclictest0-21swapper/719:49:387
497394991413,1cyclictest0-21swapper/622:09:476
497394991412,2cyclictest893952-21kworker/u16:3+events_unbound22:42:146
497394991412,2cyclictest433182-21kworker/u16:0+events_unbound19:24:376
497394991411,2cyclictest676581-21kworker/u16:4+events_unbound21:34:406
49739499140,1cyclictest0-21swapper/623:53:236
49739499140,1cyclictest0-21swapper/621:55:366
49739499140,14cyclictest0-21swapper/622:22:056
497391991413,1cyclictest0-21swapper/500:36:515
497391991412,2cyclictest893952-21kworker/u16:3+events_unbound22:39:375
497391991412,1cyclictest6469432chrt20:22:135
497391991410,3cyclictest579044-21cat19:49:245
49739199140,2cyclictest0-21swapper/523:39:085
49739199140,1cyclictest0-21swapper/523:32:035
49739199140,1cyclictest0-21swapper/523:10:275
49739199140,1cyclictest0-21swapper/523:10:275
49739199140,14cyclictest0-21swapper/522:13:515
49739199140,14cyclictest0-21swapper/521:52:435
49739199140,14cyclictest0-21swapper/521:48:185
49739199140,14cyclictest0-21swapper/521:17:525
49739199140,14cyclictest0-21swapper/500:00:445
49739199140,0cyclictest0-21swapper/523:00:595
497387991411,2cyclictest433182-21kworker/u16:0+flush-8:020:24:424
49739799139,3cyclictest1302-21snmpd20:05:267
49739799139,3cyclictest1302-21snmpd19:45:027
497397991312,0cyclictest0-21swapper/720:49:497
497397991312,0cyclictest0-21swapper/719:19:457
497397991311,1cyclictest0-21swapper/721:09:247
497397991310,2cyclictest1302-21snmpd19:39:507
49739799130,3cyclictest1106008-21sh23:47:267
497394991312,1cyclictest0-21swapper/619:18:346
497394991311,2cyclictest433182-21kworker/u16:0+events_unbound19:54:416
49739499130,0cyclictest0-21swapper/620:39:556
49739199139,3cyclictest1083943-21cat23:39:405
497391991312,1cyclictest0-21swapper/521:24:545
497391991312,1cyclictest0-21swapper/500:26:455
497391991311,1cyclictest695707-21munin-plugin-st20:49:245
497391991311,1cyclictest0-21swapper/521:09:385
49739199130,13cyclictest0-21swapper/523:57:455
49739199130,13cyclictest0-21swapper/523:46:425
49739199130,13cyclictest0-21swapper/523:24:005
49739199130,13cyclictest0-21swapper/522:51:325
49738799130,13cyclictest0-21swapper/419:45:524
49739799128,3cyclictest1302-21snmpd20:33:367
49739799128,3cyclictest1302-21snmpd20:33:367
49739799127,4cyclictest5965-21gmain20:19:467
497397991211,0cyclictest0-21swapper/721:00:047
497394991211,1cyclictest0-21swapper/623:40:176
497394991211,1cyclictest0-21swapper/622:26:026
497394991210,2cyclictest433182-21kworker/u16:0+events_unbound21:30:546
49739499120,0cyclictest0-21swapper/620:13:546
49739199128,3cyclictest870300-21cat22:04:395
49739199127,4cyclictest559471-21cat19:39:195
497391991211,1cyclictest0-21swapper/523:16:265
497391991211,1cyclictest0-21swapper/523:04:275
497391991211,1cyclictest0-21swapper/522:55:005
497391991211,1cyclictest0-21swapper/522:02:015
497391991211,1cyclictest0-21swapper/500:31:485
497391991211,1cyclictest0-21swapper/500:06:445
49739199120,0cyclictest0-21swapper/521:40:255
49738799129,2cyclictest626722-21kworker/u16:1+flush-8:020:19:504
497387991211,1cyclictest0-21swapper/420:48:374
497387991210,2cyclictest372951-21kworker/u16:4+events_unbound19:49:364
49738799120,1cyclictest0-21swapper/420:12:594
49739799118,2cyclictest1302-21snmpd19:17:497
49739799113,7cyclictest6530-21gmain20:44:467
49739499117,3cyclictest583345-21kthreadcore19:49:426
497394991110,1cyclictest0-21swapper/620:36:276
497394991110,1cyclictest0-21swapper/620:24:576
497394991110,1cyclictest0-21swapper/619:36:046
49739499110,3cyclictest708789-21kthreadcore20:54:426
49739499110,11cyclictest0-21swapper/620:52:236
497391991110,1cyclictest0-21swapper/522:38:365
497391991110,1cyclictest0-21swapper/522:25:405
497391991110,1cyclictest0-21swapper/521:57:365
497391991110,1cyclictest0-21swapper/521:32:045
497391991110,1cyclictest0-21swapper/521:08:065
497391991110,1cyclictest0-21swapper/520:54:135
497391991110,1cyclictest0-21swapper/520:06:555
497391991110,1cyclictest0-21swapper/519:24:505
497391991110,1cyclictest0-21swapper/519:15:325
497391991110,1cyclictest0-21swapper/519:13:295
49739199110,11cyclictest0-21swapper/520:42:145
49739199110,11cyclictest0-21swapper/520:25:135
49739199110,11cyclictest0-21swapper/519:32:055
497387991110,1cyclictest0-21swapper/421:08:574
49739799106,3cyclictest5965-21gmain20:54:467
49739799100,8cyclictest6050-21gmain20:39:387
49739499109,1cyclictest0-21swapper/620:18:296
49739499106,3cyclictest560660-21cat19:39:406
49739199109,1cyclictest0-21swapper/523:24:295
49739199109,1cyclictest0-21swapper/522:32:085
49739199109,1cyclictest0-21swapper/522:22:125
49739199109,1cyclictest0-21swapper/520:30:445
49739199109,1cyclictest0-21swapper/520:30:445
49739199109,1cyclictest0-21swapper/520:19:135
49739199109,1cyclictest0-21swapper/520:00:475
49739199109,1cyclictest0-21swapper/519:54:385
49739199109,1cyclictest0-21swapper/519:39:485
49739199109,1cyclictest0-21swapper/519:22:475
49739199109,1cyclictest0-21swapper/500:21:145
49738799108,2cyclictest626722-21kworker/u16:1+events_unbound20:53:344
49738799106,3cyclictest628745-21tune2fs20:14:394
4973919998,1cyclictest0-21swapper/520:36:155
4973919998,1cyclictest0-21swapper/500:18:145
4973879998,1cyclictest0-21swapper/419:36:054
4973879994,4cyclictest612825-21kthreadcore20:04:454
4973949986,1cyclictest0-21swapper/620:19:466
4973949986,1cyclictest0-21swapper/619:44:426
4973949983,4cyclictest720487-21kthreadcore20:59:436
4973919984,3cyclictest957626-21open_inodes22:44:515
4973919984,3cyclictest1110546-21cut23:49:425
4973919983,4cyclictest760568-21sed21:19:415
4973919983,4cyclictest580180-21ip_192.168.115.19:49:405
4973879986,1cyclictest0-21swapper/419:14:444
4973879983,4cyclictest560447-21cut19:39:394
4973919972,4cyclictest715671-21cut20:59:365
4973919970,2cyclictest6186252cat20:09:375
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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