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2026-06-02 - 13:01
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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 Tue Jun 02, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156334325847,8sleep40-21swapper/419:04:404
1563791994846,2cyclictest1833041-21kworker/u16:0+events_unbound22:57:205
1563787994745,2cyclictest1625189-21kworker/u16:1+events_unbound19:46:484
156379799460,44cyclictest2291992-21latency_hist00:31:477
156333524636,7sleep50-21swapper/519:04:335
1563787994341,2cyclictest2120699-21kworker/u16:0+events_unbound00:36:474
1563791994240,2cyclictest1663310-21kworker/u16:3+events_unbound20:42:165
1563797994038,1cyclictest0-21swapper/721:06:517
1563791994038,2cyclictest1833041-21kworker/u16:0+events_unbound22:37:155
15632222403,31sleep70-21swapper/719:02:587
1563797993831,6cyclictest1740014-21latency_hist20:36:487
1563797993631,4cyclictest1653784-21latency_hist19:51:487
1563791993634,2cyclictest2207555-21kworker/u16:3+events_unbound00:04:305
1563791993634,2cyclictest2194251-21kworker/u16:1+events_unbound23:52:415
1563791993634,2cyclictest2194251-21kworker/u16:1+events_unbound23:52:415
1563791993634,2cyclictest2074864-21kworker/u16:4+events_unbound23:29:375
1563791993634,2cyclictest2026646-21kworker/u16:2+events_unbound22:56:105
1563791993634,2cyclictest1759587-21kworker/u16:1+events_unbound22:25:065
1563791993533,2cyclictest2217566-21kworker/u16:4+events_unbound00:00:105
1563791993533,2cyclictest2120699-21kworker/u16:0+events_unbound00:31:465
1563791993533,2cyclictest2074864-21kworker/u16:4+events_unbound23:47:305
1563791993533,2cyclictest2074864-21kworker/u16:4+events_unbound23:43:145
1563791993533,2cyclictest1833041-21kworker/u16:0+events_unbound21:42:535
1563791993533,2cyclictest1759587-21kworker/u16:1+events_unbound23:36:145
1563797993433,0cyclictest0-21swapper/722:57:267
1563797993432,1cyclictest0-21swapper/721:44:507
1563791993432,2cyclictest2062785-21kworker/u16:3+events_unbound23:05:545
1563791993432,2cyclictest1927768-21kworker/u16:2+events_unbound22:09:225
1563791993432,2cyclictest1833041-21kworker/u16:0+events_unbound22:45:025
1563791993432,2cyclictest1833041-21kworker/u16:0+events_unbound21:35:185
1563791993432,2cyclictest1772026-21kworker/u16:2+flush-8:021:22:335
1563791993432,2cyclictest1759588-21kworker/u16:4+events_unbound21:19:025
1563787993432,2cyclictest1833041-21kworker/u16:0+events_unbound21:26:344
1563797993332,0cyclictest0-21swapper/721:22:577
1563797993332,0cyclictest0-21swapper/700:19:587
1563797993331,1cyclictest2098235-21ssh23:10:257
1563797993331,1cyclictest1797618-21diskmemload23:56:457
1563797993331,1cyclictest1797618-21diskmemload23:56:457
1563791993331,2cyclictest2207555-21kworker/u16:3+events_unbound00:23:145
1563791993331,2cyclictest2207555-21kworker/u16:3+events_unbound00:13:335
1563791993331,2cyclictest2074864-21kworker/u16:4+events_unbound23:20:385
1563791993331,2cyclictest2062785-21kworker/u16:3+events_unbound23:08:095
1563797993229,2cyclictest1905813-21ssh21:51:147
1563791993230,2cyclictest2120699-21kworker/u16:0+events_unbound23:25:025
1563791993230,2cyclictest2074864-21kworker/u16:4+events_unbound23:37:385
1563791993230,2cyclictest2062785-21kworker/u16:3+events_unbound23:14:135
1563791993230,2cyclictest2062785-21kworker/u16:3+events_unbound23:14:135
1563791993230,2cyclictest1833041-21kworker/u16:0+events_unbound22:04:425
1563787993230,2cyclictest2074864-21kworker/u16:4+events_unbound23:46:454
1563797993130,0cyclictest0-21swapper/723:27:597
1563797993130,0cyclictest0-21swapper/700:07:347
1563797993129,1cyclictest1964447-21ssh22:13:187
1563797993129,1cyclictest0-21swapper/700:01:467
1563797993128,2cyclictest2001332-21ssh22:29:457
1563791993129,2cyclictest1894414-21kworker/u16:3+events_unbound21:55:375
1563791993129,2cyclictest1833041-21kworker/u16:0+events_unbound21:51:075
1563791993129,2cyclictest1759587-21kworker/u16:1+events_unbound21:14:335
1563791993129,2cyclictest1759587-21kworker/u16:1+events_unbound21:14:335
1563791993129,2cyclictest1702119-21kworker/u16:0+events_unbound20:26:505
1563791993129,2cyclictest1702119-21kworker/u16:0+events_unbound20:26:505
1563791993127,3cyclictest2120699-21kworker/u16:0+flush-8:000:32:355
156334523121,7sleep60-21swapper/619:04:426
1563797993029,0cyclictest0-21swapper/721:18:587
1563797993028,1cyclictest1797618-21diskmemload23:35:507
1563797993028,1cyclictest1797618-21diskmemload21:34:547
1563791993028,2cyclictest2217566-21kworker/u16:4+flush-8:000:10:095
1563791993028,2cyclictest2000096-21kworker/u16:3+events_unbound22:32:535
1563791993028,2cyclictest2000096-21kworker/u16:3+events_unbound22:32:535
1563787993028,2cyclictest2120699-21kworker/u16:0+flush-8:023:25:064
1563797992928,0cyclictest0-21swapper/722:37:267
1563797992928,0cyclictest0-21swapper/721:37:587
1563797992927,1cyclictest2121531-21ssh23:18:547
1563797992927,1cyclictest1928031-21ssh21:57:507
1563791992927,2cyclictest2000096-21kworker/u16:3+events_unbound22:27:385
1563791992927,2cyclictest1772026-21kworker/u16:2+events_unbound21:09:025
1563791992927,2cyclictest1563557-21kworker/u16:4+flush-8:019:17:225
1563787992927,2cyclictest2074864-21kworker/u16:4+flush-8:023:48:454
1563787992926,2cyclictest2074864-21kworker/u16:4+events_unbound23:31:504
1563797992827,0cyclictest0-21swapper/721:13:057
1563797992827,0cyclictest0-21swapper/721:13:057
1563797992827,0cyclictest0-21swapper/700:23:067
1563797992827,0cyclictest0-21swapper/700:15:057
1563797992826,1cyclictest2132764-21ssh23:22:257
1563797992826,1cyclictest2084731-21ssh23:02:417
1563797992826,1cyclictest2036253-21ssh22:42:267
156379799280,26cyclictest0-21swapper/720:12:127
1563792992826,2cyclictest1772026-21kworker/u16:2+events_unbound21:12:186
1563792992826,2cyclictest1772026-21kworker/u16:2+events_unbound21:12:186
1563791992826,2cyclictest2026646-21kworker/u16:2+events_unbound22:51:135
1563791992826,2cyclictest1500648-21kworker/u16:2+events_unbound20:12:515
1563787992826,2cyclictest1833041-21kworker/u16:0+flush-8:021:36:444
1563787992826,2cyclictest1759587-21kworker/u16:1+events_unbound21:27:094
1563797992726,0cyclictest0-21swapper/723:38:427
1563797992726,0cyclictest0-21swapper/723:13:437
1563797992726,0cyclictest0-21swapper/723:13:437
1563797992726,0cyclictest0-21swapper/720:26:347
1563792992725,2cyclictest1663310-21kworker/u16:3+events_unbound20:37:176
1563792992725,2cyclictest1563557-21kworker/u16:4+flush-8:019:27:146
1563791992725,2cyclictest1772026-21kworker/u16:2+events_unbound21:41:055
1563791992725,2cyclictest1759587-21kworker/u16:1+events_unbound21:29:225
1563791992725,2cyclictest1515627-21kworker/u16:0+events_unbound19:40:155
1563791992725,2cyclictest1500648-21kworker/u16:2+events_unbound19:10:155
1563787992725,2cyclictest2120699-21kworker/u16:0+flush-8:000:24:494
1563787992725,2cyclictest1759587-21kworker/u16:1+events_unbound23:09:574
1563787992725,2cyclictest1625189-21kworker/u16:1+events_unbound19:37:054
1563787992724,2cyclictest1833041-21kworker/u16:0+events_unbound21:51:504
1563797992625,0cyclictest0-21swapper/722:24:547
1563797992625,0cyclictest0-21swapper/721:31:477
1563791992624,2cyclictest1500648-21kworker/u16:2+events_unbound19:55:145
1563791992623,2cyclictest1833041-21kworker/u16:0+events_unbound22:16:535
1563787992624,2cyclictest1759587-21kworker/u16:1+flush-8:023:04:374
1563797992524,0cyclictest0-21swapper/722:09:497
1563791992523,2cyclictest2207555-21kworker/u16:3+events_unbound00:18:235
1563791992523,2cyclictest1563557-21kworker/u16:4+events_unbound19:30:585
1563791992522,2cyclictest1894414-21kworker/u16:3+events_unbound21:56:555
1563787992523,2cyclictest2074864-21kworker/u16:4+flush-8:023:17:214
1563787992523,2cyclictest1759587-21kworker/u16:1+flush-8:022:47:254
1563797992423,0cyclictest0-21swapper/723:49:377
1563797992423,0cyclictest0-21swapper/700:35:387
1563791992422,2cyclictest1759587-21kworker/u16:1+events_unbound22:14:155
1563791992422,2cyclictest1702119-21kworker/u16:0+events_unbound20:25:145
1563791992421,2cyclictest1500648-21kworker/u16:2+events_unbound19:41:495
1563787992422,2cyclictest2120699-21kworker/u16:0+flush-8:000:04:214
1563787992422,2cyclictest1772026-21kworker/u16:2+events_unbound21:01:474
1563787992422,2cyclictest1500648-21kworker/u16:2+events_unbound20:02:144
1563787992421,2cyclictest1833041-21kworker/u16:0+flush-8:022:31:474
1563787992421,2cyclictest1833041-21kworker/u16:0+events_unbound22:31:504
1563787992421,2cyclictest1833041-21kworker/u16:0+events_unbound22:31:504
1563797992320,2cyclictest1605663-21sshd-session19:25:147
1563797992319,2cyclictest1758075-21memory20:42:127
1563791992321,2cyclictest1563557-21kworker/u16:4+events_unbound19:15:025
1563787992321,2cyclictest1759587-21kworker/u16:1+flush-8:021:42:344
1563787992320,2cyclictest1759587-21kworker/u16:1+events_unbound23:37:014
1563797992220,1cyclictest1940564-21ssh22:03:467
1563791992220,2cyclictest1759588-21kworker/u16:4+events_unbound20:47:035
1563787992220,2cyclictest1759587-21kworker/u16:1+flush-8:021:47:144
1563787992220,2cyclictest1759587-21kworker/u16:1+events_unbound22:12:574
1563787992220,2cyclictest1759587-21kworker/u16:1+events_unbound21:14:584
1563787992220,2cyclictest1759587-21kworker/u16:1+events_unbound21:14:584
1563797992120,0cyclictest0-21swapper/722:48:257
1563797992119,1cyclictest2231642-21ssh00:06:417
1563791992119,2cyclictest1563557-21kworker/u16:4+flush-8:019:24:185
1563791992119,2cyclictest1563557-21kworker/u16:4+events_unbound19:34:195
1563791992118,2cyclictest1663310-21kworker/u16:3+events_unbound19:57:015
1563787992119,2cyclictest2217566-21kworker/u16:4+events_unbound00:14:594
1563787992119,2cyclictest2074864-21kworker/u16:4+flush-8:023:16:424
1563787992119,2cyclictest2074864-21kworker/u16:4+flush-8:023:16:424
1563787992119,2cyclictest2074864-21kworker/u16:4+events_unbound23:30:574
1563787992119,2cyclictest1759587-21kworker/u16:1+events_unbound23:00:594
1563797992019,0cyclictest0-21swapper/723:42:377
1563797992019,0cyclictest0-21swapper/722:33:547
1563797992019,0cyclictest0-21swapper/722:33:547
1563797992019,0cyclictest0-21swapper/721:52:317
1563797992019,0cyclictest0-21swapper/720:05:597
1563791992018,2cyclictest1772026-21kworker/u16:2+events_unbound20:55:225
1563787992018,2cyclictest2026646-21kworker/u16:2+events_unbound22:54:464
1563787992018,2cyclictest1833041-21kworker/u16:0+flush-8:022:42:034
1563787992018,2cyclictest1833041-21kworker/u16:0+events_unbound22:19:434
1563797991918,0cyclictest0-21swapper/719:52:027
1563797991917,1cyclictest1967658-21ssh22:17:057
1563791991917,2cyclictest1702119-21kworker/u16:0+events_unbound20:19:105
1563791991917,2cyclictest1663310-21kworker/u16:3+events_unbound20:09:105
1563791991917,2cyclictest1500648-21kworker/u16:2+events_unbound20:34:585
1563787991917,2cyclictest2168901-21kworker/u16:2+events_unbound23:54:264
1563787991917,2cyclictest2168901-21kworker/u16:2+events_unbound23:54:264
1563787991917,2cyclictest1833041-21kworker/u16:0+events_unbound22:39:574
1563787991917,2cyclictest1759587-21kworker/u16:1+events_unbound22:09:434
1563787991917,2cyclictest1759587-21kworker/u16:1+events_unbound21:57:194
1563797991817,0cyclictest0-21swapper/722:55:217
1563791991816,2cyclictest1515627-21kworker/u16:0+events_unbound19:48:315
1563787991816,2cyclictest2217566-21kworker/u16:4+events_unbound00:08:094
1563792991713,3cyclictest1919429-21cat21:57:036
1563791991715,2cyclictest1772026-21kworker/u16:2+events_unbound21:00:175
1563791991715,2cyclictest1759587-21kworker/u16:1+events_unbound21:03:055
1563791991715,2cyclictest1500648-21kworker/u16:2+events_unbound20:05:185
1563787991715,2cyclictest2120699-21kworker/u16:0+events_unbound00:17:014
1563787991715,2cyclictest1759588-21kworker/u16:4+events_unbound21:19:594
1563787991715,2cyclictest1702119-21kworker/u16:0+events_unbound20:37:114
1563787991715,2cyclictest1500648-21kworker/u16:2+events_unbound20:22:124
1563791991614,2cyclictest1663310-21kworker/u16:3+events_unbound20:38:275
1563787991613,2cyclictest1927768-21kworker/u16:2+events_unbound22:21:504
156379799150,13cyclictest0-21swapper/720:52:157
1563792991511,3cyclictest2015817-21cat22:37:036
1563787991513,2cyclictest2207555-21kworker/u16:3+events_unbound00:00:224
1563787991513,2cyclictest1833041-21kworker/u16:0+events_unbound22:03:594
1563787991511,3cyclictest1500648-21kworker/u16:2+events_unbound19:07:064
156379799146,7cyclictest6514-21gmain19:57:137
156379799146,7cyclictest6514-21gmain19:32:177
156379299148,6cyclictest2007207-21kthreadcore22:32:086
156379299148,6cyclictest2007207-21kthreadcore22:32:086
1563792991413,1cyclictest0-21swapper/623:22:046
156379299140,1cyclictest86-21ksoftirqd/622:14:166
156379299140,1cyclictest0-21swapper/623:46:406
1563787991412,2cyclictest1759588-21kworker/u16:4+events_unbound20:52:184
1563787991412,2cyclictest1759587-21kworker/u16:1+events_unbound21:09:434
1563787991412,2cyclictest1663310-21kworker/u16:3+flush-8:019:57:144
1563787991412,2cyclictest1563557-21kworker/u16:4+flush-8:019:17:044
1563787991412,2cyclictest1515627-21kworker/u16:0+flush-8:019:12:094
156379799139,3cyclictest1234-21snmpd20:10:187
156379799139,3cyclictest1234-21snmpd19:27:537
156379799136,6cyclictest6895-21gmain20:31:457
156379799136,6cyclictest6895-21gmain20:31:457
156379799136,6cyclictest5975-21gmain20:38:537
156379299138,4cyclictest1991744-21cat22:27:046
1563792991312,1cyclictest0-21swapper/623:57:516
1563792991312,1cyclictest0-21swapper/623:10:336
156379299130,13cyclictest0-21swapper/621:32:016
156379299130,13cyclictest0-21swapper/600:11:486
1563787991312,1cyclictest0-21swapper/420:27:174
1563787991312,1cyclictest0-21swapper/420:27:174
1563787991311,2cyclictest1772026-21kworker/u16:2+events_unbound21:40:544
1563787991311,2cyclictest1702119-21kworker/u16:0+events_unbound20:42:044
1563787991310,2cyclictest2289406-21timerwakeupswit00:27:164
156379799129,2cyclictest1234-21snmpd19:11:567
156379799128,3cyclictest1234-21snmpd20:56:557
156379799128,3cyclictest1234-21snmpd19:10:597
156379799126,5cyclictest6895-21gmain19:37:177
156379799125,6cyclictest6032-21gmain19:42:497
1563797991211,0cyclictest0-21swapper/719:17:137
1563797991210,1cyclictest0-21swapper/721:02:197
156379299128,3cyclictest1979687-21cat22:22:046
156379299128,3cyclictest1907410-21cat21:52:036
1563792991211,1cyclictest0-21swapper/622:50:136
156379299120,12cyclictest0-21swapper/622:06:046
156379299120,12cyclictest0-21swapper/621:41:386
156379299120,12cyclictest0-21swapper/619:40:146
156379299120,11cyclictest2268532-21cpuspeed_turbos00:22:016
156379799117,3cyclictest1234-21snmpd20:51:017
156379799114,6cyclictest6382-21gvfs-afc-volume20:17:127
156379299119,1cyclictest0-21swapper/600:27:036
1563792991110,1cyclictest0-21swapper/623:34:126
1563792991110,1cyclictest0-21swapper/621:22:346
1563792991110,1cyclictest0-21swapper/621:05:516
1563792991110,1cyclictest0-21swapper/620:45:216
1563792991110,1cyclictest0-21swapper/620:18:246
1563792991110,1cyclictest0-21swapper/619:19:356
156379299110,1cyclictest0-21swapper/620:33:416
156379299110,11cyclictest0-21swapper/620:01:126
156378799116,4cyclictest1789189-21cat21:02:054
1563787991110,1cyclictest0-21swapper/419:51:494
156378799110,11cyclictest0-21swapper/419:29:544
156379299109,1cyclictest2244487-21cpuspeed_turbos00:12:016
156379299109,1cyclictest0-21swapper/623:00:196
156379299108,2cyclictest86-21ksoftirqd/623:51:516
156379299108,2cyclictest86-21ksoftirqd/623:51:516
156379299108,2cyclictest86-21ksoftirqd/622:44:016
156379299108,2cyclictest86-21ksoftirqd/621:44:406
156379299108,1cyclictest0-21swapper/619:47:106
156379299107,2cyclictest1577441-21/usr/sbin/munin19:12:086
156379299106,3cyclictest1898529-21kthreadcore21:47:076
156379299106,3cyclictest1677708-21kthreadcore20:02:066
156379299106,3cyclictest1642432-21kthreadcore19:42:106
156379299104,5cyclictest0-21swapper/621:17:086
156379299102,3cyclictest1942892-21expr22:06:596
156379299100,9cyclictest2116495-21kthreadcore23:17:066
156379299100,9cyclictest2102107-21kthreadcore23:12:076
156379299100,9cyclictest2102107-21kthreadcore23:12:076
156379299100,9cyclictest1852520-21kthreadcore21:27:066
156379299100,9cyclictest1769467-21cpuspeed_turbos20:52:036
156379299100,9cyclictest1721787-21diskstats20:27:026
156379299100,9cyclictest1721787-21diskstats20:27:026
156379299100,9cyclictest1685641-21kthreadcore20:07:066
156379299100,9cyclictest0-21swapper/623:02:046
156379299100,4cyclictest2295940-21kthreadcore00:32:056
156379299100,4cyclictest1800048-21cut21:07:066
156379299100,2cyclictest1615770-21/usr/sbin/munin19:32:136
156378799109,1cyclictest0-21swapper/420:11:414
15637929996,2cyclictest2184701-21sed23:47:036
15637929996,2cyclictest0-21swapper/623:27:006
15637929995,3cyclictest2167577-21kthreadcore23:37:086
15637929995,3cyclictest1967644-21cat22:17:046
15637929995,3cyclictest1719962-21ntpq20:22:116
15637929991,1cyclictest0-21swapper/622:52:066
15637929990,3cyclictest1596781-21expr19:22:006
15637929990,2cyclictest2220135-21/usr/sbin/munin00:02:036
15637929990,2cyclictest1764433-21kthreadcore20:47:066
15637929990,2cyclictest1692649-21cat20:12:016
15637879997,2cyclictest1759587-21kworker/u16:1+flush-8:020:47:164
15637879997,2cyclictest1563557-21kworker/u16:4+events_unbound19:32:064
15637879997,2cyclictest1500648-21kworker/u16:2+events_unbound20:32:044
15637879997,2cyclictest1500648-21kworker/u16:2+events_unbound20:12:064
15637879994,4cyclictest1648086-21cut19:47:074
15637929983,4cyclictest1787549-21unixbench-2d20:57:166
15637929983,4cyclictest1662340-21cat19:52:106
15637929980,7cyclictest2257059-21perl00:17:026
15637879984,3cyclictest1702121-21/usr/sbin/munin20:17:044
15637879984,3cyclictest1597103-21diskstats19:22:014
15637929970,6cyclictest1563999-21/usr/sbin/munin19:07:016
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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