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2026-07-26 - 01:36
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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 rackeslot6.osadl.org (updated Sat Jul 25, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197657199141130,8cyclictest2024132-21latency_hist09:35:010
197657399137127,7cyclictest2066297-21latency_hist11:45:021
197657399133126,5cyclictest1984564-21apt-get07:31:571
197657399130106,21cyclictest2063085-21kworker/u8:0+events_unbound12:00:011
197657199130122,6cyclictest1991752-21kworker/u8:2+events_unbound08:00:000
197657399125117,5cyclictest2023939-21kworker/u8:3+flush-179:009:50:011
197657399124112,9cyclictest1988088-21latency_hist07:45:011
197657199123114,7cyclictest2015653-21latency_hist09:10:010
197657199122115,5cyclictest2033674-21kworker/u8:3+events_unbound10:05:020
197657399121111,7cyclictest1981389-21latency_hist07:25:011
197657199120113,5cyclictest2056991-21kworker/u8:1+events_unbound11:40:230
197657399119111,5cyclictest1963306-21kworker/u8:1+flush-179:007:40:001
197657199119110,3cyclictest2023939-21kworker/u8:3+events_unbound09:40:240
197657399116107,5cyclictest1963306-21kworker/u8:1+events_unbound07:10:021
197657199116111,4cyclictest2043233-21kworker/u8:1+flush-179:010:35:260
197657199116111,4cyclictest2033674-21kworker/u8:3+events_unbound10:25:260
197657199116111,4cyclictest1963306-21kworker/u8:1+flush-179:007:25:250
197657199114109,4cyclictest1981627-21kworker/u8:0+flush-179:007:50:240
197657199114109,4cyclictest1981627-21kworker/u8:0+flush-179:007:50:230
197657399113104,6cyclictest2084059-21latency_hist12:40:001
197657399113103,7cyclictest2033690-21latency_hist10:05:011
197657199113108,4cyclictest1981627-21kworker/u8:0+flush-179:008:00:240
197657199113104,7cyclictest2058307-21kworker/u8:3+flush-179:011:25:000
197657399112101,8cyclictest2022282-21latency_hist09:30:011
19765719911298,4cyclictest1991752-21kworker/u8:2+events_unbound08:10:270
197657199112108,3cyclictest2056991-21kworker/u8:1+events_unbound11:30:230
197657199112106,4cyclictest2063085-21kworker/u8:0+flush-179:011:50:240
197657399111104,4cyclictest2058307-21kworker/u8:3+flush-179:011:35:231
197657199111106,4cyclictest2012448-21kworker/u8:0+flush-179:009:10:270
197657199111101,4cyclictest2063085-21kworker/u8:0+events_unbound12:15:240
19765739910999,7cyclictest2008365-21kworker/u8:3+events_unbound08:45:241
197657199108103,4cyclictest2063085-21kworker/u8:0+events_unbound12:00:250
197657199108102,4cyclictest2012517-21kworker/u8:2+flush-179:009:25:250
19765739910797,7cyclictest2063085-21kworker/u8:0+events_unbound12:20:011
19765739910795,9cyclictest1213033-21systemd-journal08:55:001
197657399107101,4cyclictest2056991-21kworker/u8:1+flush-179:011:30:181
19765719910794,5cyclictest1991752-21kworker/u8:2+events_unbound08:30:180
197657199107101,5cyclictest1983010-21kworker/u8:2+flush-179:007:45:260
197657199107101,4cyclictest2066332-21kworker/u8:2+flush-179:012:10:220
197657199106102,3cyclictest2023939-21kworker/u8:3+flush-179:009:35:250
19765719910592,10cyclictest2039242-21apt-get10:20:130
197657199105100,4cyclictest1974805-21kworker/u8:3+events_unbound07:15:230
19765739910498,4cyclictest2077957-21apt-get12:20:141
19765739910490,6cyclictest2048511-21kworker/u8:2+events_unbound11:10:011
19765719910498,4cyclictest1991752-21kworker/u8:2+flush-179:008:40:210
19765739910395,5cyclictest2040572-21latency_hist10:25:011
19765739910393,7cyclictest2012517-21kworker/u8:2+flush-179:009:45:011
19765719910397,4cyclictest1963306-21kworker/u8:1+events_unbound07:20:220
19765719910391,4cyclictest2063085-21kworker/u8:0+events_unbound11:55:120
19765739910296,4cyclictest2043233-21kworker/u8:1+flush-179:010:40:241
19765719910290,4cyclictest2002960-21kworker/u8:3+events_unbound08:35:230
19765739910195,4cyclictest2012517-21kworker/u8:2+flush-179:010:00:011
19765739910191,7cyclictest1981627-21kworker/u8:0+flush-179:007:30:001
19765739910191,6cyclictest1974805-21kworker/u8:3+flush-179:007:15:211
19765719910196,4cyclictest2048663-21kworker/u8:3+events_unbound11:05:240
19765739910094,4cyclictest2033674-21kworker/u8:3+flush-179:010:10:171
19765719910095,4cyclictest2048511-21kworker/u8:2+events_unbound11:10:270
1976573999983,5cyclictest2006152-21kworker/u8:1+events_unbound09:05:011
1976571999993,4cyclictest2012517-21kworker/u8:2+events_unbound09:55:190
1976571999792,4cyclictest2030529-21kworker/u8:1+events_unbound10:00:270
1976573999690,4cyclictest2066332-21kworker/u8:2+events_unbound12:30:261
1976573999690,4cyclictest2066332-21kworker/u8:2+events_unbound12:30:251
1976573999683,9cyclictest2036196-21kworker/u8:1+events_unbound10:15:031
1976571999691,4cyclictest2048511-21kworker/u8:2+flush-179:011:00:260
1976571999687,6cyclictest2028909-21latency_hist09:50:010
1976571999685,9cyclictest1213033-21systemd-journal09:25:010
1976573999589,4cyclictest2048511-21kworker/u8:2+flush-179:011:00:171
1976573999584,8cyclictest2056735-21latency_hist11:15:011
1976571999590,3cyclictest1983010-21kworker/u8:2+events_unbound07:35:210
1976573999488,4cyclictest1996278-21kworker/u8:0+flush-179:008:20:231
1976573999484,7cyclictest2058349-21latency_hist11:20:011
1976573999386,5cyclictest2006152-21kworker/u8:1+flush-179:009:05:231
1976573999382,9cyclictest2001592-21apt-get08:25:121
1976573999382,8cyclictest2048663-21kworker/u8:3+flush-179:010:55:011
1976571999387,4cyclictest2033665-21kworker/u8:0+events_unbound10:30:180
1976571999383,7cyclictest2067881-21latency_hist11:50:020
1976573999285,5cyclictest2017480-21kworker/u8:1+flush-179:009:20:221
1976573999284,5cyclictest2002960-21kworker/u8:3+flush-179:008:35:251
1976571999286,4cyclictest1963306-21kworker/u8:1+flush-179:007:30:210
1976571999283,3cyclictest2048663-21kworker/u8:3+events_unbound10:55:240
1976573999181,7cyclictest2058307-21kworker/u8:3+flush-179:011:25:201
1976571999184,5cyclictest2066332-21kworker/u8:2+flush-179:012:30:270
1976571999184,5cyclictest2066332-21kworker/u8:2+flush-179:012:30:260
1976571998983,4cyclictest2048511-21kworker/u8:2+events_unbound11:15:160
1976571998884,3cyclictest2023939-21kworker/u8:3+flush-179:009:50:280
1976571998883,4cyclictest2058307-21kworker/u8:3+events_unbound11:25:220
1976571998882,4cyclictest2033674-21kworker/u8:3+events_unbound10:10:220
1976573998780,4cyclictest2066332-21kworker/u8:2+events_unbound12:10:261
1976571998780,5cyclictest1213033-21systemd-journal08:25:230
1976573998679,5cyclictest2006152-21kworker/u8:1+flush-179:008:55:221
1976571998680,5cyclictest2066332-21kworker/u8:2+events_unbound12:25:220
1976573998578,5cyclictest1991752-21kworker/u8:2+flush-179:008:05:251
1976571998579,5cyclictest2008365-21kworker/u8:3+flush-179:008:45:260
1976571998572,11cyclictest2009828-21diskstats08:50:180
1976573998474,7cyclictest2012517-21kworker/u8:2+flush-179:009:20:001
1976571998479,4cyclictest1991752-21kworker/u8:2+flush-179:008:15:220
1976573998375,5cyclictest2056991-21kworker/u8:1+events_unbound11:20:261
1976573998374,6cyclictest2035532-21latency_hist10:10:011
1976573998371,8cyclictest2033665-21kworker/u8:0+flush-179:010:35:281
1976573998368,12cyclictest1213033-21systemd-journal08:30:211
1976573998274,5cyclictest2063085-21kworker/u8:0+flush-179:012:00:211
1976573998271,9cyclictest1213033-21systemd-journal10:35:011
1976573998270,9cyclictest2025729-21latency_hist09:40:011
1976571998277,3cyclictest2066332-21kworker/u8:2+flush-179:012:05:260
1976571998275,5cyclictest2017480-21kworker/u8:1+events_unbound09:15:180
1976573998175,4cyclictest2080861-21kworker/u8:1+events_unbound12:30:001
1976573998171,7cyclictest1991257-21latency_hist07:55:021
1976573998171,7cyclictest1991257-21latency_hist07:55:011
1976571998176,4cyclictest2012448-21kworker/u8:0+flush-179:009:00:260
1976573998074,4cyclictest1974805-21kworker/u8:3+flush-179:007:10:211
1976573998071,6cyclictest2012448-21kworker/u8:0+flush-179:009:10:231
1976573997974,4cyclictest1983010-21kworker/u8:2+events_unbound07:45:171
1976573997973,4cyclictest1981627-21kworker/u8:0+flush-179:008:00:221
1976571997874,3cyclictest1996278-21kworker/u8:0+events_unbound08:20:240
1976571997859,3cyclictest2043233-21kworker/u8:1+events_unbound10:45:190
1976573997770,5cyclictest2066332-21kworker/u8:2+flush-179:011:45:221
1976571997773,3cyclictest2033665-21kworker/u8:0+events_unbound10:17:010
1976571997772,4cyclictest2066332-21kworker/u8:2+flush-179:012:24:570
1976573997665,8cyclictest2048663-21kworker/u8:3+events_unbound10:55:201
1976571997672,3cyclictest2043233-21kworker/u8:1+events_unbound10:40:250
1976571997666,7cyclictest1213033-21systemd-journal11:35:220
1976573997568,4cyclictest2023939-21kworker/u8:3+flush-179:009:50:231
1976573997257,6cyclictest2066332-21kworker/u8:2+flush-179:012:05:241
1976571997267,4cyclictest1963306-21kworker/u8:1+events_unbound07:10:180
1976573997165,5cyclictest2020687-21kworker/u8:0+flush-179:009:30:181
1976573997160,8cyclictest1991752-21kworker/u8:2+flush-179:008:40:221
1976573997159,10cyclictest1996278-21kworker/u8:0+flush-179:008:15:011
1976573997063,4cyclictest1991752-21kworker/u8:2+events_unbound08:15:161
1976571997064,5cyclictest2048663-21kworker/u8:3+flush-179:010:53:240
1976571996560,3cyclictest1991752-21kworker/u8:2+flush-179:008:05:130
1976573996256,5cyclictest2033674-21kworker/u8:3+flush-179:010:25:181
4577091550,9ptp4l441ktimers/307:09:103
1976571995450,3cyclictest1983010-21kworker/u8:2+events_unbound07:44:550
1976573995340,10cyclictest2048526-21latency_hist10:50:001
1976571995142,7cyclictest2006152-21kworker/u8:1+flush-179:008:55:240
1976571995046,3cyclictest2082442-21kworker/u8:3+flush-179:012:36:230
1976583994941,6cyclictest2080890-21turbostat12:30:003
1976573994742,4cyclictest2063085-21kworker/u8:0+flush-179:011:50:241
1976577994642,2cyclictest0-21swapper/207:15:592
197657799460,43cyclictest0-21swapper/207:59:002
1976583994542,2cyclictest0-21swapper/307:15:593
1976577994540,2cyclictest0-21swapper/211:45:582
1976583994340,2cyclictest0-21swapper/311:45:593
1976573994335,5cyclictest321-21hwrng07:56:591
4577091420,5ptp4l431rcuc/311:40:003
1976583994239,2cyclictest0-21swapper/310:02:583
1976583994237,3cyclictest0-21swapper/309:13:593
197658399420,41cyclictest0-21swapper/307:58:593
1976577994138,2cyclictest0-21swapper/210:02:592
1976577994137,2cyclictest0-21swapper/209:13:592
197658399400,39cyclictest2053577-21turbostat11:05:003
1976583993936,2cyclictest0-21swapper/308:12:593
197658399390,1cyclictest0-21swapper/311:31:593
197657799390,37cyclictest0-21swapper/208:32:592
197657799390,36cyclictest0-21swapper/210:24:542
197658399380,37cyclictest0-21swapper/311:09:593
1976577993835,2cyclictest0-21swapper/208:13:002
197657799380,2cyclictest0-21swapper/209:07:592
197658399370,2cyclictest0-21swapper/307:14:593
1976577993733,2cyclictest0-21swapper/208:35:592
1976577993733,2cyclictest0-21swapper/207:33:582
197657799370,35cyclictest0-21swapper/211:10:002
197657799370,2cyclictest0-21swapper/211:31:582
1976583993633,2cyclictest0-21swapper/308:35:593
1976583993632,3cyclictest0-21swapper/309:29:553
197658399360,35cyclictest0-21swapper/310:24:553
197658399360,35cyclictest0-21swapper/308:32:593
1976577993632,2cyclictest0-21swapper/209:29:552
1976577993632,2cyclictest0-21swapper/209:24:552
197657799360,1cyclictest0-21swapper/211:05:002
1976583993533,1cyclictest0-21swapper/307:25:003
197658399350,1cyclictest0-21swapper/309:07:593
1976577993532,2cyclictest0-21swapper/208:55:592
1976577993531,2cyclictest0-21swapper/209:43:592
1976577993530,2cyclictest0-21swapper/207:20:582
1976583993432,1cyclictest0-21swapper/310:08:593
1976583993432,1cyclictest0-21swapper/309:34:563
1976583993432,1cyclictest0-21swapper/309:24:553
1976583993432,1cyclictest0-21swapper/308:55:593
1976583993432,1cyclictest0-21swapper/307:33:583
1976577993431,2cyclictest0-21swapper/210:30:592
1976577993431,2cyclictest0-21swapper/210:08:582
1976577993431,2cyclictest0-21swapper/209:54:562
1976577993431,2cyclictest0-21swapper/209:34:562
197657799340,31cyclictest0-21swapper/210:58:582
1976571993429,3cyclictest0-21swapper/007:10:030
1976583993331,1cyclictest0-21swapper/310:30:593
1976583993330,2cyclictest0-21swapper/309:43:593
1976577993330,2cyclictest0-21swapper/211:59:552
1976577993329,2cyclictest0-21swapper/212:26:002
1976577993328,2cyclictest0-21swapper/210:39:002
1976583993230,1cyclictest0-21swapper/311:59:543
1976583993230,1cyclictest0-21swapper/309:54:563
1976583993230,1cyclictest0-21swapper/308:04:583
1976583993229,2cyclictest0-21swapper/310:39:003
1976577993229,2cyclictest0-21swapper/208:04:582
1976577993228,2cyclictest0-21swapper/207:53:592
1976577993228,2cyclictest0-21swapper/207:53:592
197658399310,30cyclictest0-21swapper/310:58:593
1976577993127,2cyclictest0-21swapper/209:37:592
1976577993127,2cyclictest0-21swapper/209:04:592
1976583993028,1cyclictest0-21swapper/307:54:003
1976583993028,1cyclictest0-21swapper/307:53:593
1976583993027,2cyclictest0-21swapper/312:21:003
1976583993027,2cyclictest0-21swapper/309:37:593
197658399300,28cyclictest0-21swapper/312:15:033
1976577993026,2cyclictest0-21swapper/212:00:122
197657799300,2cyclictest0-21swapper/210:25:142
197657799300,28cyclictest0-21swapper/210:15:032
197657799300,28cyclictest0-21swapper/207:25:152
4577091290,7ptp4l441ktimers/310:15:013
1976583992927,1cyclictest0-21swapper/309:04:593
197658399290,2cyclictest0-21swapper/312:00:133
197658399290,2cyclictest0-21swapper/308:15:143
197658399290,27cyclictest0-21swapper/311:50:163
197658399290,27cyclictest0-21swapper/310:50:013
197658399290,1cyclictest0-21swapper/310:25:143
1976577992926,2cyclictest0-21swapper/212:20:592
1976577992926,2cyclictest0-21swapper/208:15:142
1976577992925,2cyclictest0-21swapper/207:38:592
197657799290,2cyclictest0-21swapper/208:45:122
197657799290,28cyclictest0-21swapper/210:50:022
197657799290,27cyclictest0-21swapper/212:15:032
197657799290,27cyclictest0-21swapper/211:50:162
197657799290,27cyclictest0-21swapper/208:50:592
4577091280,5ptp4l441ktimers/308:10:013
1976583992822,4cyclictest2074262-21turbostat12:10:013
197658399280,27cyclictest0-21swapper/308:45:123
197658399280,27cyclictest0-21swapper/308:20:023
197658399280,26cyclictest0-21swapper/310:15:023
197658399280,26cyclictest0-21swapper/307:25:143
197658399280,1cyclictest0-21swapper/312:34:563
197658399280,1cyclictest0-21swapper/312:34:553
1976577992825,2cyclictest0-21swapper/211:40:152
1976577992825,2cyclictest0-21swapper/209:17:592
1976577992825,2cyclictest0-21swapper/208:20:022
1976577992824,2cyclictest0-21swapper/208:40:592
4577091270,6ptp4l441ktimers/312:15:003
1976583992725,1cyclictest0-21swapper/311:40:153
1976583992725,1cyclictest0-21swapper/309:17:593
1976583992725,1cyclictest0-21swapper/307:44:593
1976583992725,1cyclictest0-21swapper/307:39:003
1976583992723,2cyclictest0-21swapper/308:25:593
197658399270,26cyclictest0-21swapper/311:13:593
197658399270,26cyclictest0-21swapper/310:43:593
197658399270,26cyclictest0-21swapper/308:50:593
1976577992723,2cyclictest0-21swapper/208:25:592
197657799270,24cyclictest0-21swapper/211:13:582
197657799270,24cyclictest0-21swapper/210:43:582
4577091260,6ptp4l441ktimers/307:49:553
4577091260,5ptp4l441ktimers/311:29:563
4577091260,5ptp4l441ktimers/311:24:553
1976583992624,1cyclictest0-21swapper/308:40:593
1976577992624,1cyclictest0-21swapper/207:44:592
1976577992623,2cyclictest0-21swapper/211:21:002
1976577992622,2cyclictest0-21swapper/212:09:002
197657799260,2cyclictest0-21swapper/212:34:552
197657799260,2cyclictest0-21swapper/212:34:552
197657799260,2cyclictest0-21swapper/211:36:002
197657799260,24cyclictest0-21swapper/211:16:592
4577091250,5ptp4l441ktimers/310:49:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-011:20:013
197658399250,24cyclictest0-21swapper/312:38:593
4577091240,5ptp4l61490irq/134-eno1-TxRx-009:49:553
1976577992421,2cyclictest0-21swapper/212:40:002
1976577992219,2cyclictest0-21swapper/208:05:162
1976577992218,2cyclictest0-21swapper/210:11:592
1976577992118,2cyclictest0-21swapper/209:48:592
1976577992017,2cyclictest0-21swapper/211:27:582
1976577991915,2cyclictest0-21swapper/207:14:002
1976577991612,2cyclictest0-21swapper/212:11:002
197658399159,5cyclictest2032117-21turbostat10:00:003
1976577991512,2cyclictest0-21swapper/207:49:002
1976577991411,2cyclictest0-21swapper/209:55:592
197657799118,2cyclictest0-21swapper/210:46:592
19765779940,1cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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