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2026-04-15 - 08:16
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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 Wed Apr 15, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190641525139,8sleep50-21swapper/519:09:275
19061902415,31sleep70-21swapper/719:06:167
1906741993937,2cyclictest2173641-21kworker/u16:0+flush-8:021:40:005
190616023826,8sleep60-21swapper/619:05:516
1906741993633,2cyclictest1948873-21kworker/u16:1+flush-8:019:44:595
1906740993532,2cyclictest2015139-21kworker/u16:0+flush-8:020:29:594
1906740993532,2cyclictest2015139-21kworker/u16:0+flush-8:020:29:594
19793922340,1chrt0-21swapper/719:45:177
1906754993428,4cyclictest1929510-21latency_hist19:20:007
1906741993431,3cyclictest1967810-21kworker/u16:4+flush-8:020:19:595
1906741993331,2cyclictest2295919-21kworker/u16:1+flush-8:022:49:595
19063382339,8sleep40-21swapper/419:08:214
1906740993028,2cyclictest2572940-21kworker/u16:3+events_unbound00:39:564
1906740993028,2cyclictest2452324-21kworker/u16:2+events_unbound23:26:564
1906740993028,2cyclictest2332100-21kworker/u16:4+events_unbound22:58:444
1906740993028,2cyclictest2295919-21kworker/u16:1+events_unbound22:54:494
1906740993028,2cyclictest2173641-21kworker/u16:0+events_unbound21:38:154
1906740992927,2cyclictest2605545-21kworker/u16:2+events_unbound00:28:084
1906740992927,2cyclictest2332100-21kworker/u16:4+events_unbound23:14:554
1906740992927,2cyclictest2148304-21kworker/u16:3+events_unbound21:44:104
1906740992927,2cyclictest2024948-21kworker/u16:2+events_unbound22:21:534
1906740992926,2cyclictest2500535-21kworker/u16:4+events_unbound23:45:014
1906741992826,2cyclictest2572940-21kworker/u16:3+events_unbound00:25:285
1906741992824,3cyclictest2497411-21kworker/u16:1+flush-8:000:00:165
1906740992826,2cyclictest2525408-21kworker/u16:2+events_unbound00:09:564
1906740992826,2cyclictest2525408-21kworker/u16:2+events_unbound00:01:574
1906740992826,2cyclictest2332100-21kworker/u16:4+events_unbound23:18:094
1906740992826,2cyclictest2332100-21kworker/u16:4+events_unbound23:18:094
1906740992826,2cyclictest2332100-21kworker/u16:4+events_unbound23:03:294
1906740992826,2cyclictest2332100-21kworker/u16:4+events_unbound22:33:254
1906740992826,2cyclictest2308261-21kworker/u16:0+events_unbound23:06:054
1906740992826,2cyclictest2295919-21kworker/u16:1+flush-8:022:45:094
1906740992826,2cyclictest2148304-21kworker/u16:3+events_unbound21:17:574
1906740992826,2cyclictest2024948-21kworker/u16:2+flush-8:022:25:414
1906740992826,2cyclictest2024948-21kworker/u16:2+events_unbound21:51:264
1906740992826,2cyclictest2024948-21kworker/u16:2+events_unbound21:51:264
1906754992722,4cyclictest2608636-21latency_hist00:24:597
1906740992725,2cyclictest2308261-21kworker/u16:0+events_unbound22:39:334
1906740992725,2cyclictest2259728-21kworker/u16:3+events_unbound22:10:334
1906740992725,2cyclictest2259728-21kworker/u16:3+events_unbound22:09:094
1906740992725,2cyclictest2024948-21kworker/u16:2+events_unbound22:02:584
1906740992725,2cyclictest2024948-21kworker/u16:2+events_unbound21:27:454
1906740992725,2cyclictest1887916-21kworker/u16:0+flush-8:019:10:174
1906740992724,2cyclictest2245230-21kworker/u16:1+events_unbound21:56:454
1906740992724,2cyclictest2148304-21kworker/u16:3+events_unbound21:30:124
1906740992624,2cyclictest2605545-21kworker/u16:2+events_unbound00:24:414
1906740992624,2cyclictest2497411-21kworker/u16:1+events_unbound00:32:134
1906740992624,2cyclictest2452324-21kworker/u16:2+events_unbound23:36:504
1906740992624,2cyclictest2332100-21kworker/u16:4+events_unbound22:41:184
1906740992624,2cyclictest2308261-21kworker/u16:0+events_unbound23:42:174
1906740992624,2cyclictest2148304-21kworker/u16:3+events_unbound21:13:204
1906740992624,2cyclictest2015139-21kworker/u16:0+events_unbound20:02:084
1906740992623,2cyclictest1920310-21kworker/u16:3+flush-8:019:25:204
1906741992523,2cyclictest2295919-21kworker/u16:1+flush-8:022:30:145
1906741992523,2cyclictest2024948-21kworker/u16:2+events_unbound22:20:145
1906741992522,2cyclictest2173641-21kworker/u16:0+flush-8:021:49:595
1906740992523,2cyclictest2497411-21kworker/u16:1+events_unbound23:56:294
1906740992523,2cyclictest2497411-21kworker/u16:1+events_unbound23:52:404
1906740992523,2cyclictest2497411-21kworker/u16:1+events_unbound00:14:554
1906740992523,2cyclictest2308261-21kworker/u16:0+events_unbound23:20:214
1906740992523,2cyclictest2024948-21kworker/u16:2+events_unbound22:18:384
1906740992523,2cyclictest2024948-21kworker/u16:2+events_unbound21:46:084
1906740992523,2cyclictest2024948-21kworker/u16:2+events_unbound21:20:244
190675499240,22cyclictest2199550-21latency_hist21:35:007
1906740992422,2cyclictest2120691-21kworker/u16:0+events_unbound21:09:374
1906740992422,2cyclictest2024948-21kworker/u16:2+flush-8:021:00:244
1906740992421,2cyclictest1948873-21kworker/u16:1+events_unbound19:30:014
1906754992317,5cyclictest2235634-21latency_hist21:49:597
1906741992321,2cyclictest2295919-21kworker/u16:1+flush-8:022:55:255
1906740992321,2cyclictest2452324-21kworker/u16:2+events_unbound23:31:244
1906740992321,2cyclictest1948873-21kworker/u16:1+flush-8:019:35:294
1906754992216,5cyclictest2524431-21latency_hist23:49:597
1906741992220,2cyclictest2024948-21kworker/u16:2+events_unbound22:15:275
1906740992220,2cyclictest2572940-21kworker/u16:3+events_unbound00:16:384
1906740992220,2cyclictest2024948-21kworker/u16:2+flush-8:020:20:094
1906740992219,2cyclictest2015139-21kworker/u16:0+events_unbound20:30:024
1906754992111,9cyclictest0-21swapper/722:45:157
1906741992119,2cyclictest2308261-21kworker/u16:0+flush-8:000:15:265
1906741992119,2cyclictest2173641-21kworker/u16:0+events_unbound21:25:275
1906740992119,2cyclictest1967810-21kworker/u16:4+events_unbound20:56:084
1906740992119,2cyclictest1920310-21kworker/u16:3+events_unbound19:56:304
1906740992117,3cyclictest2015139-21kworker/u16:0+flush-8:020:05:164
1906754992014,5cyclictest1939111-21latency_hist19:24:597
1906740992018,2cyclictest1967810-21kworker/u16:4+events_unbound20:11:014
1906740992018,2cyclictest1906504-21kworker/u16:2+events_unbound19:19:104
1906754991915,3cyclictest1234-21snmpd21:20:317
1906754991913,5cyclictest635-21systemd-journal23:54:587
1906746991918,1cyclictest851ktimers/623:05:486
1906754991813,4cyclictest1234-21snmpd23:06:037
1906741991816,2cyclictest1920310-21kworker/u16:3+events_unbound20:00:145
1906741991815,2cyclictest2024948-21kworker/u16:2+flush-8:020:25:145
1906741991815,2cyclictest2024948-21kworker/u16:2+flush-8:020:25:145
1906740991816,2cyclictest2015139-21kworker/u16:0+flush-8:020:44:544
190675499170,15cyclictest2488359-21latency_hist23:34:597
1906741991715,2cyclictest2332100-21kworker/u16:4+flush-8:023:15:335
1906741991715,2cyclictest2332100-21kworker/u16:4+flush-8:023:15:335
1906741991715,2cyclictest2308261-21kworker/u16:0+events_unbound23:25:225
1906741991715,2cyclictest2245230-21kworker/u16:1+events_unbound22:00:125
1906740991715,2cyclictest2024948-21kworker/u16:2+events_unbound20:15:094
1906740991715,2cyclictest1948873-21kworker/u16:1+events_unbound19:51:294
1906754991612,3cyclictest1234-21snmpd22:15:147
1906754991612,3cyclictest1234-21snmpd19:37:027
190675499160,14cyclictest1234-21snmpd22:00:207
1906746991616,0cyclictest0-21swapper/622:05:366
1906741991615,1cyclictest2148304-21kworker/u16:3+events_unbound21:41:205
1906741991614,2cyclictest2308261-21kworker/u16:0+events_unbound22:40:295
1906740991614,2cyclictest2015139-21kworker/u16:0+events_unbound20:45:174
190675499156,8cyclictest6514-21gmain21:38:517
1906754991514,0cyclictest0-21swapper/723:10:567
1906754991512,2cyclictest0-21swapper/721:14:597
1906754991511,3cyclictest1234-21snmpd20:56:317
190675499150,13cyclictest2319802-21latency_hist22:24:597
1906746991513,1cyclictest2586791-21kthreadcore00:15:166
1906746991512,3cyclictest2497411-21kworker/u16:1+flush-8:000:05:296
1906741991513,2cyclictest1920310-21kworker/u16:3+flush-8:019:50:225
1906740991513,2cyclictest1967810-21kworker/u16:4+flush-8:019:40:094
190675499146,7cyclictest5849-21gmain21:55:407
190675499140,1cyclictest0-21swapper/719:30:237
190675499140,12cyclictest2388962-21ssh22:50:237
1906746991413,1cyclictest2537972-21irqcore23:55:166
1906746991413,1cyclictest2019109-21kthreadcore20:05:176
1906746991413,1cyclictest0-21swapper/623:28:556
1906746991413,1cyclictest0-21swapper/621:57:386
1906746991413,1cyclictest0-21swapper/600:22:596
190674699140,1cyclictest0-21swapper/621:38:436
190674199140,1cyclictest0-21swapper/520:20:185
190674199140,14cyclictest0-21swapper/522:09:435
1906740991412,2cyclictest2054627-21kworker/u16:1+events_unbound20:35:584
190675499139,3cyclictest2139442-21idleruntime-cro21:09:597
190675499139,3cyclictest1234-21snmpd21:52:297
190675499139,3cyclictest1234-21snmpd21:52:297
190675499139,3cyclictest1234-21snmpd00:31:057
190675499136,6cyclictest6101-21gmain20:15:127
1906754991312,0cyclictest0-21swapper/722:10:207
1906754991310,2cyclictest1234-21snmpd19:42:507
190675499130,12cyclictest0-21swapper/719:25:267
190674699137,0cyclictest0-21swapper/623:00:226
1906746991312,1cyclictest2530967-21kthreadcore23:50:166
1906746991312,1cyclictest2289200-21kthreadcore22:10:166
1906746991312,1cyclictest2218273-21kthreadcore21:40:186
1906746991312,1cyclictest2108947-21kthreadcore20:50:206
1906746991312,1cyclictest2050205-21kthreadcore20:20:196
1906746991312,1cyclictest0-21swapper/622:33:346
1906746991312,1cyclictest0-21swapper/620:45:226
1906746991312,1cyclictest0-21swapper/620:00:176
1906746991312,1cyclictest0-21swapper/600:02:586
1906746991311,1cyclictest2383785-21kthreadcore22:50:176
1906746991310,2cyclictest86-21ksoftirqd/621:10:186
1906746991310,1cyclictest681rcuog/419:20:186
190674699130,1cyclictest0-21swapper/619:35:256
1906741991312,1cyclictest0-21swapper/500:14:065
1906741991311,2cyclictest2308261-21kworker/u16:0+flush-8:023:45:305
1906741991311,2cyclictest2024948-21kworker/u16:2+events_unbound21:05:155
1906740991312,1cyclictest0-21swapper/419:20:144
1906740991311,2cyclictest2024948-21kworker/u16:2+events_unbound20:54:384
190675499129,2cyclictest1234-21snmpd22:05:387
190675499129,2cyclictest0-21swapper/720:40:007
190675499128,3cyclictest6032-21gmain22:29:597
190675499128,3cyclictest1234-21snmpd23:43:227
190675499128,3cyclictest1234-21snmpd22:31:087
190675499128,3cyclictest1234-21snmpd19:13:317
190675499128,3cyclictest1234-21snmpd00:29:117
190675499128,3cyclictest1234-21snmpd00:03:167
190675499126,5cyclictest6382-21gvfs-afc-volume23:35:117
190675499126,5cyclictest6382-21gvfs-afc-volume23:01:377
190675499126,5cyclictest6382-21gvfs-afc-volume22:39:057
190675499120,11cyclictest1234-21snmpd21:43:497
190674699129,2cyclictest2493770-21kthreadcore23:35:176
190674699128,4cyclictest0-21swapper/622:42:286
190674699127,5cyclictest0-21swapper/623:40:176
190674699127,5cyclictest0-21swapper/623:20:126
190674699127,5cyclictest0-21swapper/600:10:176
190674699126,4cyclictest681rcuog/423:16:236
190674699126,4cyclictest681rcuog/423:16:236
190674699123,1cyclictest201rcu_preempt00:35:106
1906746991211,1cyclictest851ktimers/621:18:446
1906746991211,1cyclictest1922802-21kthreadcore19:15:186
1906746991211,1cyclictest0-21swapper/621:24:416
1906746991211,1cyclictest0-21swapper/621:05:206
1906746991211,1cyclictest0-21swapper/620:10:186
1906741991211,1cyclictest0-21swapper/519:49:145
1906740991210,2cyclictest1967810-21kworker/u16:4+events_unbound19:49:594
190675499118,2cyclictest1234-21snmpd23:21:007
190675499118,2cyclictest1234-21snmpd23:17:277
190675499118,2cyclictest1234-21snmpd23:17:277
190675499118,2cyclictest1234-21snmpd22:59:037
190675499118,2cyclictest1234-21snmpd21:27:527
190675499118,2cyclictest1234-21snmpd19:55:477
190675499118,2cyclictest1234-21snmpd19:51:297
190675499118,2cyclictest0-21swapper/722:40:237
190675499117,3cyclictest1234-21snmpd23:59:167
190675499117,3cyclictest1234-21snmpd21:12:557
190675499117,3cyclictest1234-21snmpd20:52:547
190675499117,3cyclictest1234-21snmpd20:34:577
190675499116,4cyclictest1234-21snmpd00:15:237
190675499115,5cyclictest6895-21gmain20:25:007
190675499115,5cyclictest6895-21gmain20:25:007
190675499115,4cyclictest2465283-21rm23:25:117
190675499110,9cyclictest1234-21snmpd00:35:207
190675499110,10cyclictest1234-21snmpd20:23:067
190674699118,1cyclictest201rcu_preempt19:25:136
190674699116,4cyclictest2345178-21cat22:35:136
190674699114,4cyclictest681rcuog/422:24:096
190674699114,4cyclictest2437741-21unixbench_singl23:10:276
190674699113,6cyclictest201rcu_preempt22:01:276
190674699112,7cyclictest0-21swapper/621:45:466
190674699112,7cyclictest0-21swapper/621:25:096
1906746991110,1cyclictest2609633-21expr00:25:126
1906746991110,1cyclictest1955079-21tr19:30:196
1906746991110,1cyclictest0-21swapper/622:55:176
1906746991110,1cyclictest0-21swapper/620:15:186
1906746991110,1cyclictest0-21swapper/619:50:106
1906746991110,1cyclictest0-21swapper/600:30:156
190674699110,3cyclictest2516541-21cut23:45:186
190674699110,2cyclictest2483049-21cut23:30:186
190674699110,10cyclictest0-21swapper/621:30:136
190674199119,2cyclictest2605545-21kworker/u16:2+events_unbound00:30:275
190674199119,2cyclictest2497411-21kworker/u16:1+events_unbound00:09:385
190674199119,2cyclictest2295919-21kworker/u16:1+events_unbound23:05:225
190674199119,2cyclictest2024948-21kworker/u16:2+flush-8:021:34:555
190674199116,4cyclictest2537769-21cat23:55:155
1906741991110,1cyclictest0-21swapper/521:01:275
190674199110,11cyclictest0-21swapper/519:27:385
190675499107,2cyclictest1234-21snmpd20:11:367
190675499106,3cyclictest1234-21snmpd21:02:497
190675499106,3cyclictest1234-21snmpd20:45:037
190675499106,3cyclictest1234-21snmpd20:00:357
190674699109,1cyclictest0-21swapper/622:45:196
190674699109,1cyclictest0-21swapper/622:15:186
190674699109,1cyclictest0-21swapper/620:55:126
190674699109,1cyclictest0-21swapper/620:25:176
190674699109,1cyclictest0-21swapper/620:25:176
190674699109,1cyclictest0-21swapper/619:40:166
190674699108,2cyclictest86-21ksoftirqd/620:30:116
190674699100,9cyclictest0-21swapper/619:10:136
190674699100,6cyclictest2320406-21grep22:25:116
190674699100,5cyclictest2073221-21cat20:35:136
190674699100,4cyclictest2236790-21perl21:50:136
190674699100,4cyclictest2236790-21perl21:50:136
190674699100,2cyclictest2125157-21grep21:00:196
190674199109,1cyclictest0-21swapper/519:17:045
190674199108,2cyclictest2497411-21kworker/u16:1+flush-8:000:20:145
190674199108,2cyclictest2024948-21kworker/u16:2+events_unbound21:10:285
190674199108,1cyclictest0-21swapper/500:35:105
190674199106,3cyclictest2289114-21kthreadcore22:10:165
190674199106,3cyclictest2245230-21kworker/u16:1+flush-8:021:55:165
19067549996,3cyclictest6514-21gmain20:35:317
19067549996,2cyclictest1234-21snmpd00:10:587
19067549994,4cyclictest1023-21tuned20:05:267
19067549990,2cyclictest0-21swapper/700:05:207
19067469998,1cyclictest0-21swapper/620:40:136
19067469998,1cyclictest0-21swapper/619:55:116
19067469998,1cyclictest0-21swapper/619:45:146
19067419998,1cyclictest0-21swapper/521:19:445
19067419997,2cyclictest2295919-21kworker/u16:1+flush-8:022:50:245
19067419987,1cyclictest0-21swapper/520:40:225
19067419986,1cyclictest0-21swapper/519:10:125
19067419985,2cyclictest0-21swapper/520:05:185
19067419984,3cyclictest2477638-21cat23:30:145
19067419984,3cyclictest1957720-21unixbench-2d19:30:275
19067419984,1cyclictest681rcuog/423:10:175
19067419983,4cyclictest2100210-21ldconfig20:45:245
19067419983,4cyclictest2067007-21grep20:30:165
19067419980,5cyclictest2108084-21grep20:50:205
19067419980,5cyclictest1962724-21kthreadcore19:35:195
19067419980,4cyclictest2164635-21fw_packets21:20:135
19067419975,2cyclictest2024948-21kworker/u16:2+flush-8:022:25:005
19067419975,1cyclictest0-21swapper/523:50:095
19067419975,1cyclictest0-21swapper/523:40:105
19067419975,1cyclictest0-21swapper/523:20:175
19067419975,1cyclictest0-21swapper/520:55:125
19067419974,2cyclictest2344924-21fschecks_count22:35:125
19067419973,3cyclictest2240436-21grep21:50:185
19067419973,3cyclictest2240436-21grep21:50:185
19067419973,3cyclictest2073372-21expr20:35:135
19067419973,3cyclictest2026476-21cut20:10:155
19067419973,3cyclictest1997138-21cat19:55:115
19067419972,4cyclictest2488881-21awk23:35:105
19067419972,4cyclictest2406207-21cut23:00:165
19067419972,4cyclictest1930659-21sed19:20:155
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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