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2026-08-04 - 01:58
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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 all highest latencies:
System rack0slot2.osadl.org (updated Tue Aug 04, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3871962994843,4cyclictest192838-21latency_hist23:03:377
3871954994745,2cyclictest4193296-21kworker/u16:2+events_unbound22:01:245
38664732452,31sleep70-21swapper/719:04:017
387159024419,7sleep40-21swapper/419:07:434
3871949994341,2cyclictest4050749-21kworker/u16:2+flush-8:021:18:404
3871962994240,1cyclictest4108717-21diskmemload22:54:047
3871958994240,2cyclictest4050749-21kworker/u16:2+events_unbound21:24:126
3871958994239,2cyclictest3842432-21kworker/u16:1+events_unbound20:48:406
3871949994240,2cyclictest313468-21kworker/u16:2+events_unbound23:58:394
3871949994138,2cyclictest4108758-21kworker/u16:3+events_unbound21:33:404
387146624130,8sleep50-21swapper/519:06:005
3871949994037,2cyclictest4108758-21kworker/u16:3+events_unbound22:33:404
3871962993936,2cyclictest120296-21ssh22:33:237
3871954993937,2cyclictest4108758-21kworker/u16:3+flush-8:022:43:405
387160123929,7sleep60-21swapper/619:07:546
3871958993735,2cyclictest4108758-21kworker/u16:3+flush-8:022:18:406
3871954993734,2cyclictest3904434-21kworker/u16:3+flush-8:019:38:405
3871949993735,2cyclictest265616-21kworker/u16:5+flush-8:023:38:554
3871954993634,2cyclictest409924-21kworker/u16:1+events_unbound00:36:205
3871949993634,2cyclictest3842432-21kworker/u16:1+events_unbound21:26:404
3871962993534,0cyclictest0-21swapper/721:47:087
3871958993533,2cyclictest4108758-21kworker/u16:3+events_unbound22:28:006
3871954993533,2cyclictest325866-21kworker/u16:4+events_unbound00:25:475
3871949993532,2cyclictest265616-21kworker/u16:5+events_unbound23:57:074
3871958993432,2cyclictest4193296-21kworker/u16:2+events_unbound23:06:246
3871958993432,2cyclictest4108758-21kworker/u16:3+flush-8:021:50:566
3871958993432,2cyclictest4108758-21kworker/u16:3+flush-8:021:50:566
3871958993432,2cyclictest166859-21kworker/u16:3+events_unbound23:21:556
3871954993432,2cyclictest4108758-21kworker/u16:3+flush-8:021:43:355
3871962993332,0cyclictest0-21swapper/722:11:197
3871962993331,1cyclictest4108717-21diskmemload00:04:527
3871958993331,2cyclictest4193296-21kworker/u16:2+events_unbound23:32:006
3871958993331,2cyclictest4178909-21kworker/u16:0+flush-8:022:37:316
3871958993331,2cyclictest4050749-21kworker/u16:2+flush-8:021:33:216
3871958993331,2cyclictest313468-21kworker/u16:2+flush-8:023:59:166
3871954993331,2cyclictest4193296-21kworker/u16:2+flush-8:022:53:385
3871954993331,2cyclictest4178909-21kworker/u16:0+events_unbound22:26:245
3871954993331,2cyclictest4178909-21kworker/u16:0+events_unbound21:56:485
3871949993331,2cyclictest4193296-21kworker/u16:2+flush-8:022:53:594
3871949993331,2cyclictest4178909-21kworker/u16:0+events_unbound22:07:134
3871949993331,2cyclictest4050749-21kworker/u16:2+events_unbound21:12:404
3871949993331,2cyclictest3842432-21kworker/u16:1+flush-8:021:32:404
3871949993331,2cyclictest362120-21kworker/u16:0+events_unbound00:27:194
3871949993331,2cyclictest166859-21kworker/u16:3+events_unbound23:44:274
3871949993331,2cyclictest166859-21kworker/u16:3+events_unbound23:14:564
3871962993231,0cyclictest0-21swapper/721:23:097
3871962993231,0cyclictest0-21swapper/700:27:237
3871958993230,2cyclictest4178909-21kworker/u16:0+events_unbound22:30:566
3871958993230,2cyclictest4108758-21kworker/u16:3+events_unbound22:12:446
3871958993230,2cyclictest265616-21kworker/u16:5+events_unbound00:20:486
3871958993230,2cyclictest154321-21kworker/u16:1+events_unbound22:46:156
3871958993229,2cyclictest166859-21kworker/u16:3+flush-8:023:34:396
3871954993230,2cyclictest4178909-21kworker/u16:0+events_unbound22:06:115
3871954993230,2cyclictest3842432-21kworker/u16:1+flush-8:021:10:295
3871954993230,2cyclictest313468-21kworker/u16:2+flush-8:023:59:365
3871949993230,2cyclictest4193296-21kworker/u16:2+events_unbound22:51:044
3871949993230,2cyclictest4193296-21kworker/u16:2+events_unbound22:00:444
3871949993230,2cyclictest4178909-21kworker/u16:0+flush-8:022:46:034
3871949993230,2cyclictest4178909-21kworker/u16:0+events_unbound22:26:404
3871949993230,2cyclictest4108758-21kworker/u16:3+flush-8:021:43:254
3871949993230,2cyclictest4108758-21kworker/u16:3+events_unbound22:21:004
3871949993230,2cyclictest4108758-21kworker/u16:3+events_unbound22:15:454
3871949993230,2cyclictest4108758-21kworker/u16:3+events_unbound22:13:364
3871949993230,2cyclictest409924-21kworker/u16:1+events_unbound00:37:524
3871949993230,2cyclictest3842432-21kworker/u16:1+events_unbound21:15:404
3871949993230,2cyclictest325866-21kworker/u16:4+flush-8:000:05:244
3871949993230,2cyclictest166859-21kworker/u16:3+events_unbound23:27:054
3871962993130,0cyclictest0-21swapper/700:20:247
3871962993130,0cyclictest0-21swapper/700:13:287
3871962993127,3cyclictest300504-21ssh23:47:117
3871958993129,2cyclictest3842432-21kworker/u16:1+flush-8:021:14:406
3871958993129,2cyclictest3842432-21kworker/u16:1+flush-8:020:26:486
3871958993129,2cyclictest3842432-21kworker/u16:1+events_unbound21:10:006
3871958993129,2cyclictest313468-21kworker/u16:2+flush-8:000:06:576
3871954993129,2cyclictest4178909-21kworker/u16:0+events_unbound21:46:485
3871954993129,2cyclictest4108758-21kworker/u16:3+flush-8:022:34:475
3871954993129,2cyclictest4108758-21kworker/u16:3+flush-8:022:13:275
3871949993129,2cyclictest4193296-21kworker/u16:2+flush-8:022:41:164
3871949993129,2cyclictest4193296-21kworker/u16:2+flush-8:021:47:514
3871949993129,2cyclictest4178909-21kworker/u16:0+flush-8:022:32:394
3871949993129,2cyclictest265616-21kworker/u16:5+events_unbound00:20:074
3871949993129,2cyclictest166859-21kworker/u16:3+flush-8:022:59:244
3871949993129,2cyclictest166859-21kworker/u16:3+events_unbound23:30:404
3871949993129,2cyclictest154321-21kworker/u16:1+events_unbound23:05:594
3871962993029,0cyclictest0-21swapper/722:18:007
3871962993029,0cyclictest0-21swapper/721:14:167
3871958993028,2cyclictest4193296-21kworker/u16:2+events_unbound22:02:246
3871958993028,2cyclictest4178909-21kworker/u16:0+events_unbound22:06:526
3871958993028,2cyclictest4178909-21kworker/u16:0+events_unbound21:56:056
3871958993028,2cyclictest4178909-21kworker/u16:0+events_unbound21:40:096
3871958993028,2cyclictest4050749-21kworker/u16:2+flush-8:020:41:496
3871958993028,2cyclictest313468-21kworker/u16:2+flush-8:000:11:136
3871958993028,2cyclictest166859-21kworker/u16:3+flush-8:022:56:436
3871958993028,2cyclictest154321-21kworker/u16:1+flush-8:023:11:396
3871958993028,2cyclictest154321-21kworker/u16:1+flush-8:023:11:396
3871954993028,2cyclictest4193296-21kworker/u16:2+flush-8:023:23:365
3871954993028,2cyclictest265616-21kworker/u16:5+events_unbound00:20:285
3871954993027,2cyclictest265616-21kworker/u16:5+flush-8:023:53:485
3871949993028,2cyclictest4108758-21kworker/u16:3+events_unbound21:51:294
3871949993028,2cyclictest4108758-21kworker/u16:3+events_unbound21:51:294
3871949993028,2cyclictest265616-21kworker/u16:5+flush-8:023:34:524
3871962992928,0cyclictest0-21swapper/723:36:527
3871962992928,0cyclictest0-21swapper/723:31:277
3871962992928,0cyclictest0-21swapper/722:01:457
3871962992928,0cyclictest0-21swapper/721:27:287
3871962992927,1cyclictest95475-21ssh22:21:537
3871962992926,2cyclictest3908452-21cut19:23:567
3871962992926,2cyclictest34190-21ssh21:55:017
3871958992927,2cyclictest325866-21kworker/u16:4+flush-8:000:34:196
3871954992927,2cyclictest313468-21kworker/u16:2+events_unbound00:12:475
3871954992927,2cyclictest265616-21kworker/u16:5+events_unbound00:04:485
3871954992927,2cyclictest166859-21kworker/u16:3+flush-8:023:27:315
3871954992927,2cyclictest154321-21kworker/u16:1+flush-8:023:42:325
3871949992927,2cyclictest4193296-21kworker/u16:2+events_unbound21:55:404
3871949992927,2cyclictest313468-21kworker/u16:2+flush-8:000:31:004
3871962992827,0cyclictest0-21swapper/723:28:357
3871962992827,0cyclictest0-21swapper/723:08:087
3871962992827,0cyclictest0-21swapper/722:27:007
3871962992827,0cyclictest0-21swapper/720:43:397
3871958992826,2cyclictest4178909-21kworker/u16:0+flush-8:021:44:286
3871958992826,2cyclictest4108758-21kworker/u16:3+flush-8:022:14:596
3871958992826,2cyclictest325866-21kworker/u16:4+events_unbound00:15:006
3871958992826,2cyclictest301671-21kworker/u16:0+events_unbound23:55:436
3871958992826,2cyclictest265616-21kworker/u16:5+events_unbound23:40:286
3871954992826,2cyclictest4193296-21kworker/u16:2+flush-8:023:30:365
3871954992826,2cyclictest4193296-21kworker/u16:2+events_unbound22:39:485
3871954992826,2cyclictest4108758-21kworker/u16:3+flush-8:021:50:085
3871954992826,2cyclictest4108758-21kworker/u16:3+flush-8:021:50:085
3871954992826,2cyclictest3982157-21kworker/u16:0+flush-8:021:17:295
3871954992826,2cyclictest3842432-21kworker/u16:1+events_unbound21:22:405
3871954992826,2cyclictest154321-21kworker/u16:1+flush-8:023:05:005
3871954992825,2cyclictest3982157-21kworker/u16:0+flush-8:021:03:395
3871954992825,2cyclictest3842432-21kworker/u16:1+flush-8:020:13:395
3871949992826,2cyclictest3842432-21kworker/u16:1+flush-8:020:49:074
3871949992826,2cyclictest325866-21kworker/u16:4+events_unbound00:17:234
3871949992826,2cyclictest166859-21kworker/u16:3+flush-8:023:22:394
3871949992826,2cyclictest154321-21kworker/u16:1+events_unbound23:49:204
3871949992825,3cyclictest154321-21kworker/u16:1+flush-8:023:09:574
3871949992825,3cyclictest154321-21kworker/u16:1+flush-8:023:09:574
41790722270,1chrt4179071-21ssh21:34:337
3871962992726,0cyclictest0-21swapper/723:21:157
3871962992726,0cyclictest0-21swapper/723:13:077
3871962992726,0cyclictest0-21swapper/723:13:077
3871962992726,0cyclictest0-21swapper/700:14:447
3871962992724,2cyclictest4108717-21diskmemload23:14:277
3871958992725,2cyclictest3992363-21kworker/u16:3+events_unbound20:09:486
3871958992725,2cyclictest362120-21kworker/u16:0+events_unbound00:25:256
3871958992725,2cyclictest313468-21kworker/u16:2+events_unbound00:30:326
3871954992725,2cyclictest4193296-21kworker/u16:2+events_unbound23:17:195
3871954992725,2cyclictest4193296-21kworker/u16:2+events_unbound23:09:445
3871954992725,2cyclictest4193296-21kworker/u16:2+events_unbound23:09:445
3871954992725,2cyclictest4178909-21kworker/u16:0+events_unbound21:35:285
3871954992725,2cyclictest154321-21kworker/u16:1+flush-8:023:47:095
3871949992725,2cyclictest4050749-21kworker/u16:2+flush-8:020:39:044
3871949992725,2cyclictest3982157-21kworker/u16:0+events_unbound20:16:484
3871949992725,2cyclictest3924392-21kworker/u16:0+events_unbound19:35:484
3871949992725,2cyclictest3842432-21kworker/u16:1+flush-8:019:29:044
3871962992625,0cyclictest0-21swapper/721:52:247
3871962992625,0cyclictest0-21swapper/721:52:247
3871962992624,1cyclictest420576-21ssh00:35:577
3871962992624,1cyclictest325007-21ssh23:57:547
3871962992624,1cyclictest132244-21ssh22:38:107
3871958992624,2cyclictest4193296-21kworker/u16:2+events_unbound23:28:006
3871958992624,2cyclictest4193296-21kworker/u16:2+events_unbound22:49:406
3871958992624,2cyclictest4178909-21kworker/u16:0+events_unbound21:35:126
3871958992624,2cyclictest4108758-21kworker/u16:3+events_unbound22:40:276
3871958992624,2cyclictest3982157-21kworker/u16:0+events_unbound20:47:496
3871958992624,2cyclictest3842432-21kworker/u16:1+events_unbound19:49:096
3871958992624,2cyclictest154321-21kworker/u16:1+events_unbound23:00:056
3871954992624,2cyclictest4178909-21kworker/u16:0+events_unbound22:29:165
3871954992624,2cyclictest3842432-21kworker/u16:1+events_unbound20:35:485
3871954992624,2cyclictest3842432-21kworker/u16:1+events_unbound20:06:485
3871954992620,5cyclictest3165494-21kworker/u16:2+flush-8:019:13:395
3871949992623,2cyclictest3982157-21kworker/u16:0+events_unbound20:18:404
3871962992524,0cyclictest0-21swapper/721:08:457
3871962992519,5cyclictest648-21systemd-journal22:08:387
3871958992523,2cyclictest3842432-21kworker/u16:1+flush-8:020:37:486
3871958992523,2cyclictest166859-21kworker/u16:3+events_unbound23:15:336
3871954992523,2cyclictest4178909-21kworker/u16:0+flush-8:022:18:535
3871954992523,2cyclictest4108758-21kworker/u16:3+events_unbound22:16:405
3871954992523,2cyclictest3842432-21kworker/u16:1+flush-8:021:27:125
3871954992523,2cyclictest265616-21kworker/u16:5+flush-8:000:15:295
3871954992523,2cyclictest154321-21kworker/u16:1+events_unbound22:54:435
3871954992522,2cyclictest3842432-21kworker/u16:1+flush-8:020:38:485
3871949992523,2cyclictest3982157-21kworker/u16:0+flush-8:021:05:474
3871962992423,0cyclictest0-21swapper/722:44:547
3871962992423,0cyclictest0-21swapper/720:03:407
3871962992423,0cyclictest0-21swapper/719:11:407
3871962992422,1cyclictest312437-21ssh23:51:547
3871962992418,5cyclictest4099001-21latency_hist21:03:387
3871958992422,2cyclictest3165532-21kworker/u16:3+events_unbound19:10:496
3871958992422,2cyclictest154321-21kworker/u16:1+flush-8:023:49:326
3871954992422,2cyclictest3842432-21kworker/u16:1+events_unbound20:49:035
3871954992422,2cyclictest313468-21kworker/u16:2+flush-8:000:30:195
3871954992422,2cyclictest154321-21kworker/u16:1+events_unbound23:00:275
3871954992421,2cyclictest3871658-21kworker/u16:0+flush-8:019:08:485
3871949992422,2cyclictest3982157-21kworker/u16:0+flush-8:020:26:124
3871949992422,2cyclictest3165532-21kworker/u16:3+events_unbound19:12:484
3871949992422,2cyclictest313468-21kworker/u16:2+events_unbound00:10:404
3871962992322,0cyclictest0-21swapper/719:54:417
3871962992320,2cyclictest4192100-21ssh21:41:227
3871958992321,2cyclictest4050749-21kworker/u16:2+events_unbound20:54:006
3871958992321,2cyclictest3982157-21kworker/u16:0+events_unbound21:04:496
3871958992321,2cyclictest3842432-21kworker/u16:1+flush-8:019:54:126
3871958992321,2cyclictest3165494-21kworker/u16:2+events_unbound19:14:496
3871954992321,2cyclictest265616-21kworker/u16:5+events_unbound23:49:245
3871954992320,2cyclictest3165494-21kworker/u16:2+flush-8:019:23:545
3871949992321,2cyclictest3982157-21kworker/u16:0+flush-8:020:53:594
3871949992321,2cyclictest3934293-21kworker/u16:2+flush-8:019:48:334
3871962992220,1cyclictest4108717-21diskmemload00:02:187
3871962992220,1cyclictest0-21swapper/700:31:467
3871958992220,2cyclictest3842432-21kworker/u16:1+events_unbound20:04:496
3871958992220,2cyclictest154321-21kworker/u16:1+events_unbound23:46:576
3871954992220,2cyclictest4050749-21kworker/u16:2+flush-8:021:29:565
3871954992220,2cyclictest3982157-21kworker/u16:0+events_unbound20:25:485
3871954992220,2cyclictest3944008-21kworker/u16:5+events_unbound19:56:135
3871954992220,2cyclictest265616-21kworker/u16:5+events_unbound23:36:575
3871949992220,2cyclictest3842432-21kworker/u16:1+events_unbound20:00:494
3871962992120,0cyclictest0-21swapper/723:40:097
3871962992120,0cyclictest0-21swapper/721:07:407
3871962992120,0cyclictest0-21swapper/720:55:527
3871962992120,0cyclictest0-21swapper/720:49:447
3871962992120,0cyclictest0-21swapper/720:37:417
3871949992119,2cyclictest3904434-21kworker/u16:3+events_unbound19:42:484
3871949992118,2cyclictest3982157-21kworker/u16:0+events_unbound20:58:404
3871962992019,0cyclictest0-21swapper/719:32:527
3871962992018,1cyclictest142806-21ssh22:40:157
3871958992018,2cyclictest3934293-21kworker/u16:2+flush-8:019:47:486
3871958992018,2cyclictest3842432-21kworker/u16:1+events_unbound20:31:496
3871954992018,2cyclictest3842432-21kworker/u16:1+events_unbound20:45:485
3871949992018,2cyclictest3944008-21kworker/u16:5+flush-8:019:52:404
387196299190,17cyclictest3982140-21sshd-session19:59:397
3871958991917,2cyclictest3904434-21kworker/u16:3+flush-8:019:39:066
3871958991917,2cyclictest3842432-21kworker/u16:1+flush-8:019:23:496
3871954991917,2cyclictest3934293-21kworker/u16:2+flush-8:019:44:485
3871962991817,0cyclictest0-21swapper/721:28:437
3871958991816,2cyclictest4050749-21kworker/u16:2+events_unbound21:21:006
3871954991816,2cyclictest3165494-21kworker/u16:2+flush-8:019:28:515
3871954991815,2cyclictest3842432-21kworker/u16:1+events_unbound20:08:485
3871962991716,0cyclictest0-21swapper/722:51:357
3871962991716,0cyclictest0-21swapper/720:39:447
3871962991716,0cyclictest0-21swapper/720:11:577
3871962991713,3cyclictest3953390-21cat19:48:387
387196299170,16cyclictest0-21swapper/720:29:027
3871958991715,2cyclictest3165494-21kworker/u16:2+events_unbound19:32:486
3871949991715,2cyclictest3992363-21kworker/u16:3+events_unbound20:13:004
3871949991714,2cyclictest3982157-21kworker/u16:0+flush-8:020:28:504
3871962991514,0cyclictest0-21swapper/720:16:257
3871958991513,2cyclictest3904434-21kworker/u16:3+events_unbound19:34:126
3871954991513,2cyclictest3982157-21kworker/u16:0+flush-8:020:19:095
3871954991512,2cyclictest3934293-21kworker/u16:2+flush-8:019:48:445
387195499150,14cyclictest0-21swapper/519:33:515
3871949991513,2cyclictest3165494-21kworker/u16:2+flush-8:019:23:384
3871949991512,2cyclictest3842432-21kworker/u16:1+flush-8:020:33:574
387194999150,1cyclictest3905285-21cpuspeed_turbos19:23:504
3871962991413,0cyclictest0-21swapper/720:28:127
387196299140,1cyclictest0-21swapper/719:49:017
387196299140,13cyclictest1302-21snmpd20:20:537
387195899140,1cyclictest0-21swapper/620:13:576
3871954991412,2cyclictest3842432-21kworker/u16:1+flush-8:020:58:595
387196299139,3cyclictest1302-21snmpd19:19:497
3871962991312,0cyclictest0-21swapper/719:36:457
3871962991212,0cyclictest0-21swapper/719:41:247
3871954991210,2cyclictest3165494-21kworker/u16:2+events_unbound19:20:495
387194999129,2cyclictest3842432-21kworker/u16:1+events_unbound20:03:514
387196299118,2cyclictest6523-21wpa_supplicant19:13:557
387195899119,2cyclictest3934293-21kworker/u16:2+flush-8:019:58:566
3871958991110,1cyclictest0-21swapper/619:18:526
3871954991110,1cyclictest0-21swapper/520:32:305
387194999119,2cyclictest3871658-21kworker/u16:0+flush-8:019:14:094
387194999110,11cyclictest0-21swapper/420:45:304
387195899100,3cyclictest4017387-21kthreadcore20:18:596
387195499109,1cyclictest0-21swapper/519:58:555
387194999109,1cyclictest0-21swapper/419:58:124
38719589990,4cyclictest4089672-21/usr/sbin/munin20:59:066
38719549987,1cyclictest0-21swapper/520:56:565
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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