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2026-06-19 - 01:21
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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 Fri Jun 19, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16825625848,7sleep40-21swapper/419:06:474
16838324510,30sleep70-21swapper/719:08:347
16823924333,7sleep50-21swapper/519:06:325
16832623929,7sleep60-21swapper/619:07:456
168746993836,2cyclictest467460-21kworker/u16:3+flush-8:023:09:485
168743993634,2cyclictest858640-21kworker/u16:2+events_unbound00:15:084
168752993431,2cyclictest723895-21ssh23:19:487
168746993432,2cyclictest3494724-21kworker/u16:0+events_unbound19:15:095
168752993230,1cyclictest0-21swapper/700:20:097
168748993230,2cyclictest467460-21kworker/u16:3+events_unbound22:05:076
168743993230,2cyclictest797524-21kworker/u16:1+flush-8:000:09:484
168752993130,0cyclictest0-21swapper/719:35:097
168743993128,2cyclictest465138-21kworker/u16:2+events_unbound21:40:174
7094722300,0sleep465-21ksoftirqd/423:10:454
168746993028,2cyclictest467460-21kworker/u16:3+flush-8:022:04:495
168746993028,2cyclictest467460-21kworker/u16:3+flush-8:022:04:495
168743993027,2cyclictest338494-21kworker/u16:3+flush-8:021:19:484
6429692280,1chrt0-21swapper/422:45:134
168752992827,0cyclictest0-21swapper/722:10:207
168743992826,2cyclictest868306-21kworker/u16:3+events_unbound00:30:214
168743992826,2cyclictest467460-21kworker/u16:3+flush-8:022:05:194
168752992725,1cyclictest468744-21ssh21:35:097
168743992724,2cyclictest338494-21kworker/u16:3+flush-8:021:10:164
168752992622,3cyclictest884485-21irqcore00:25:117
168746992623,3cyclictest467460-21kworker/u16:3+events_unbound21:55:225
168746992623,3cyclictest467460-21kworker/u16:3+events_unbound21:55:225
168752992523,1cyclictest0-21swapper/719:10:147
168752992522,2cyclictest919549-21ssh00:39:487
168752992423,0cyclictest0-21swapper/722:00:177
168752992423,0cyclictest0-21swapper/722:00:177
168746992422,2cyclictest465138-21kworker/u16:2+flush-8:022:15:175
168746992420,3cyclictest882951-21latency_hist00:24:535
168743992422,2cyclictest3661377-21kworker/u16:2+events_unbound19:20:164
168752992322,0cyclictest0-21swapper/720:55:177
168748992321,2cyclictest348513-21kworker/u16:4+events_unbound21:30:126
168743992321,2cyclictest406649-21kworker/u16:0+events_unbound21:25:224
168743992320,2cyclictest773116-21kworker/u16:3+events_unbound23:40:054
168752992221,0cyclictest0-21swapper/721:10:087
168748992220,2cyclictest279821-21kworker/u16:2+events_unbound20:10:086
168746992221,1cyclictest588130-21kworker/u16:2+events_unbound22:25:015
168743992220,2cyclictest588130-21kworker/u16:2+events_unbound22:25:534
168743992220,2cyclictest443412-21kworker/u16:1+events_unbound21:45:074
168752992119,1cyclictest0-21swapper/723:39:547
168748992118,2cyclictest868306-21kworker/u16:3+flush-8:000:29:596
168746992119,2cyclictest443412-21kworker/u16:1+events_unbound21:35:225
168746992119,2cyclictest178562-21kworker/u16:4+flush-8:019:35:175
168743992120,1cyclictest907532-21kworker/u16:0+events_unbound00:38:254
168748992018,2cyclictest699874-21kworker/u16:0+flush-8:023:39:486
168748992017,2cyclictest178562-21kworker/u16:4+flush-8:019:40:206
168746992018,2cyclictest3494724-21kworker/u16:0+flush-8:020:55:235
168746992018,2cyclictest3494724-21kworker/u16:0+events_unbound20:05:175
168746992018,2cyclictest279821-21kworker/u16:2+flush-8:020:10:195
168746992018,2cyclictest178562-21kworker/u16:4+flush-8:019:30:225
168746992017,2cyclictest465138-21kworker/u16:2+flush-8:021:50:035
168743992019,1cyclictest465138-21kworker/u16:2+events_unbound21:53:004
168743992018,2cyclictest338494-21kworker/u16:3+events_unbound21:20:214
168743992017,2cyclictest3494724-21kworker/u16:0+flush-8:019:55:164
168752991917,1cyclictest699496-21turbostat23:09:537
168748991917,2cyclictest467460-21kworker/u16:3+flush-8:023:10:246
168748991915,3cyclictest269997-21awk19:59:546
168746991917,2cyclictest406649-21kworker/u16:0+flush-8:021:14:195
168743991917,2cyclictest178562-21kworker/u16:4+flush-8:019:25:204
168752991817,0cyclictest0-21swapper/720:30:167
168752991816,1cyclictest858857-21ssh00:14:567
168752991813,3cyclictest1278-21snmpd20:10:167
16875299180,17cyclictest501576-21sh21:45:237
168748991816,2cyclictest858640-21kworker/u16:2+events_unbound00:15:246
168748991816,2cyclictest672680-21kworker/u16:1+flush-8:022:59:496
168748991816,2cyclictest465138-21kworker/u16:2+flush-8:022:15:256
168748991813,4cyclictest613934-21latency_hist22:34:546
168743991816,2cyclictest338494-21kworker/u16:3+events_unbound20:55:264
168743991816,2cyclictest279821-21kworker/u16:2+events_unbound20:25:194
168743991815,2cyclictest760892-21kworker/u16:2+events_unbound23:49:554
168752991716,0cyclictest0-21swapper/721:55:237
168752991716,0cyclictest0-21swapper/721:55:237
168752991715,1cyclictest0-21swapper/720:54:537
16875299170,4cyclictest439803-21sh21:20:177
168748991715,2cyclictest443412-21kworker/u16:1+flush-8:021:45:216
168748991715,2cyclictest338494-21kworker/u16:3+flush-8:020:55:246
168752991615,0cyclictest0-21swapper/721:16:057
168752991615,0cyclictest0-21swapper/720:15:217
168752991614,1cyclictest0-21swapper/722:05:127
168752991613,2cyclictest5934-21gnome-shell22:24:037
16875299160,14cyclictest802958-21kthreadcore23:50:157
16875299160,14cyclictest0-21swapper/719:55:167
168748991612,3cyclictest723952-21awk23:19:536
168746991613,2cyclictest868306-21kworker/u16:3+events_unbound00:25:065
168743991614,2cyclictest467460-21kworker/u16:3+events_unbound22:35:284
168743991613,2cyclictest348513-21kworker/u16:4+flush-8:021:04:534
168752991513,1cyclictest0-21swapper/721:32:227
16875299150,1cyclictest0-21swapper/722:56:477
16875299150,1cyclictest0-21swapper/700:07:447
16875299150,14cyclictest0-21swapper/722:15:187
168748991513,2cyclictest406649-21kworker/u16:0+events_unbound21:15:116
168748991513,2cyclictest3494724-21kworker/u16:0+events_unbound19:10:086
168748991513,2cyclictest348513-21kworker/u16:4+events_unbound21:10:006
168748991513,2cyclictest231221-21kworker/u16:1+flush-8:020:00:246
16874899150,15cyclictest0-21swapper/623:45:556
168746991513,2cyclictest822165-21kworker/u16:4+flush-8:000:30:245
168746991513,2cyclictest465138-21kworker/u16:2+flush-8:021:45:245
168746991510,4cyclictest772819-21latency_hist23:39:535
168746991510,4cyclictest396504-21cat21:04:485
16874399150,1cyclictest0-21swapper/422:56:474
168752991413,0cyclictest0-21swapper/719:45:197
168752991412,1cyclictest0-21swapper/700:00:237
16875299140,1cyclictest0-21swapper/723:01:127
16875299140,0cyclictest0-21swapper/723:48:117
168748991413,1cyclictest0-21swapper/621:35:326
168748991413,1cyclictest0-21swapper/621:21:596
168748991412,2cyclictest3494724-21kworker/u16:0+events_unbound19:35:216
16874899140,1cyclictest0-21swapper/600:11:286
16874899140,14cyclictest0-21swapper/622:11:206
16874899140,14cyclictest0-21swapper/600:27:426
168746991412,2cyclictest760892-21kworker/u16:2+events_unbound23:50:055
168746991412,2cyclictest348513-21kworker/u16:4+flush-8:021:20:245
168746991412,2cyclictest232241-21kworker/u16:3+events_unbound19:45:075
168743991413,1cyclictest0-21swapper/422:53:574
168743991413,1cyclictest0-21swapper/422:16:254
168743991413,1cyclictest0-21swapper/421:34:014
168743991413,1cyclictest0-21swapper/400:23:584
168743991412,2cyclictest574966-21kworker/u16:1+events_unbound22:21:044
168743991411,2cyclictest259179-21kworker/u16:2+events_unbound19:50:164
168743991411,2cyclictest259179-21kworker/u16:2+events_unbound19:50:164
16874399140,1cyclictest0-21swapper/423:48:114
16874399140,1cyclictest0-21swapper/423:01:124
16874399140,1cyclictest0-21swapper/420:08:054
16874399140,1cyclictest0-21swapper/400:12:084
16874399140,14cyclictest0-21swapper/423:58:444
16874399140,14cyclictest0-21swapper/423:58:444
16874399140,14cyclictest0-21swapper/422:02:424
16874399140,14cyclictest0-21swapper/422:02:424
16875299137,5cyclictest6527-21gmain20:20:157
16875299137,5cyclictest6341-21gvfs-afc-volume20:35:187
16875299136,6cyclictest6527-21gmain19:15:197
16875299136,6cyclictest6160-21gmain00:30:187
16875299135,8cyclictest1198-21tuned22:32:157
16875299135,7cyclictest6247-21gmain20:00:087
168752991313,0cyclictest0-21swapper/723:24:467
168752991312,0cyclictest0-21swapper/721:26:227
168752991310,2cyclictest1278-21snmpd20:42:387
16875299130,11cyclictest1278-21snmpd00:11:557
168748991312,1cyclictest0-21swapper/623:41:306
168748991312,1cyclictest0-21swapper/622:48:516
168748991312,1cyclictest0-21swapper/600:04:036
168748991311,2cyclictest465138-21kworker/u16:2+flush-8:021:50:186
168748991311,2cyclictest3494724-21kworker/u16:0+flush-8:019:45:166
168748991311,2cyclictest348513-21kworker/u16:4+flush-8:020:40:096
16874899130,1cyclictest0-21swapper/623:31:166
16874899130,13cyclictest0-21swapper/623:26:516
16874899130,13cyclictest0-21swapper/620:35:196
16874899130,13cyclictest0-21swapper/620:15:086
16874899130,13cyclictest0-21swapper/619:51:016
16874899130,13cyclictest0-21swapper/619:51:016
16874699138,2cyclictest699874-21kworker/u16:0+flush-8:023:34:535
168746991312,1cyclictest0-21swapper/523:46:015
168746991312,1cyclictest0-21swapper/523:20:105
168746991312,1cyclictest0-21swapper/520:50:245
168746991312,1cyclictest0-21swapper/520:15:055
168746991311,2cyclictest467460-21kworker/u16:3+flush-8:022:50:105
168746991310,2cyclictest0-21swapper/523:04:535
16874699130,1cyclictest0-21swapper/523:15:015
16874699130,13cyclictest0-21swapper/522:32:435
16874699130,13cyclictest0-21swapper/500:18:395
16874699130,13cyclictest0-21swapper/500:06:225
16874699130,0cyclictest0-21swapper/521:30:075
168743991312,1cyclictest0-21swapper/420:45:274
168743991312,1cyclictest0-21swapper/400:01:444
16874399130,13cyclictest0-21swapper/423:37:564
16874399130,0cyclictest0-21swapper/421:58:364
16874399130,0cyclictest0-21swapper/421:58:364
16875299129,2cyclictest1278-21snmpd22:41:327
16875299129,2cyclictest1278-21snmpd22:25:057
16875299129,2cyclictest0-21swapper/723:10:267
16875299128,3cyclictest1278-21snmpd20:28:567
16875299128,3cyclictest1278-21snmpd19:30:337
16875299127,4cyclictest749528-21tune2fs23:30:077
168752991211,0cyclictest0-21swapper/719:40:087
168752991210,1cyclictest0-21swapper/722:35:247
16875299120,11cyclictest1278-21snmpd21:04:297
16874899128,3cyclictest358751-21cat20:45:106
168748991211,1cyclictest0-21swapper/623:51:556
168748991211,1cyclictest0-21swapper/622:37:396
168748991211,1cyclictest0-21swapper/622:23:476
168748991211,1cyclictest0-21swapper/620:25:136
168748991211,1cyclictest0-21swapper/600:39:316
16874899121,10cyclictest525380-21grep21:55:186
16874899121,10cyclictest525380-21grep21:55:186
16874899120,3cyclictest315447-21kthreadcore20:20:136
16874899120,12cyclictest0-21swapper/619:28:006
16874899120,11cyclictest282836-21grep20:05:126
168746991211,1cyclictest0-21swapper/522:47:045
168746991211,1cyclictest0-21swapper/522:05:265
168746991211,1cyclictest0-21swapper/519:10:455
168746991211,1cyclictest0-21swapper/500:36:575
16874699120,12cyclictest0-21swapper/500:14:055
168743991211,1cyclictest0-21swapper/420:35:224
168743991211,1cyclictest0-21swapper/420:31:064
168743991211,1cyclictest0-21swapper/419:17:384
168743991210,2cyclictest232241-21kworker/u16:3+flush-8:019:45:104
16875299118,2cyclictest1278-21snmpd23:25:577
16875299118,2cyclictest1228-21tuned-ppd20:45:197
16875299117,4cyclictest6341-21gvfs-afc-volume21:42:507
16875299117,3cyclictest1278-21snmpd23:58:077
16875299117,3cyclictest1278-21snmpd23:58:077
16875299110,1cyclictest659893-21ssh22:50:247
16875299110,10cyclictest515652-21ssh21:53:497
16875299110,10cyclictest1278-21snmpd19:20:397
16874899119,2cyclictest338494-21kworker/u16:3+events_unbound21:05:176
16874899119,1cyclictest0-21swapper/620:30:106
16874899117,3cyclictest529779-21cat22:00:086
16874899117,3cyclictest529779-21cat22:00:086
168748991110,1cyclictest0-21swapper/623:54:546
168748991110,1cyclictest0-21swapper/623:54:546
168748991110,1cyclictest0-21swapper/623:00:126
168748991110,1cyclictest0-21swapper/620:52:496
168748991110,1cyclictest0-21swapper/619:30:596
168748991110,1cyclictest0-21swapper/619:18:236
16874899110,11cyclictest0-21swapper/621:02:456
16874699119,2cyclictest588130-21kworker/u16:2+flush-8:022:40:355
16874699119,2cyclictest3494724-21kworker/u16:0+events_unbound19:20:185
16874699119,2cyclictest348513-21kworker/u16:4+flush-8:020:45:135
16874699119,1cyclictest0-21swapper/521:05:135
16874699119,1cyclictest0-21swapper/520:25:175
16874699118,3cyclictest467460-21kworker/u16:3+flush-8:022:39:535
16874699117,3cyclictest419731-21cat21:15:095
168746991110,1cyclictest0-21swapper/519:27:095
16874699110,1cyclictest0-21swapper/519:44:205
16874699110,11cyclictest0-21swapper/520:35:345
16874399119,2cyclictest588130-21kworker/u16:2+events_unbound22:41:494
16874399119,2cyclictest348513-21kworker/u16:4+flush-8:021:05:244
16874399118,2cyclictest467460-21kworker/u16:3+flush-8:023:15:034
16874399118,2cyclictest308262-21sed20:15:204
168743991110,1cyclictest0-21swapper/423:33:314
168743991110,1cyclictest0-21swapper/420:21:104
168743991110,1cyclictest0-21swapper/419:31:404
16874399110,11cyclictest0-21swapper/420:42:374
16875299107,2cyclictest0-21swapper/723:35:217
16875299107,2cyclictest0-21swapper/722:45:077
16875299106,3cyclictest1278-21snmpd19:50:287
16875299106,3cyclictest1278-21snmpd19:50:287
16875299106,3cyclictest0-21swapper/721:05:137
16875299106,3cyclictest0-21swapper/719:25:037
16874899109,1cyclictest0-21swapper/600:05:286
16874899108,2cyclictest86-21ksoftirqd/622:26:046
16874899108,1cyclictest0-21swapper/621:40:116
16874899101,8cyclictest452052-21ntpq21:25:186
16874699109,1cyclictest0-21swapper/520:34:095
16874699109,1cyclictest0-21swapper/520:22:295
16874699108,1cyclictest0-21swapper/522:10:115
16874699108,1cyclictest0-21swapper/519:55:135
16874699108,1cyclictest0-21swapper/519:50:115
16874699108,1cyclictest0-21swapper/519:50:115
16874399109,1cyclictest0-21swapper/423:23:164
16874399109,1cyclictest0-21swapper/423:07:024
1687529995,3cyclictest1278-21snmpd20:05:107
1687489998,1cyclictest0-21swapper/623:07:376
1687489997,2cyclictest86-21ksoftirqd/623:20:226
1687489997,2cyclictest86-21ksoftirqd/622:43:436
1687489997,2cyclictest86-21ksoftirqd/619:20:056
1687489994,5cyclictest0-21swapper/600:22:026
1687469998,1cyclictest0-21swapper/520:39:595
1687469997,2cyclictest467460-21kworker/u16:3+flush-8:023:10:495
1687469997,2cyclictest467460-21kworker/u16:3+flush-8:022:55:255
1687469997,1cyclictest0-21swapper/521:40:075
1687469997,1cyclictest0-21swapper/521:25:145
1687469997,1cyclictest0-21swapper/520:00:125
1687439998,1cyclictest0-21swapper/419:14:294
1687439997,2cyclictest822165-21kworker/u16:4+flush-8:000:25:034
1687439997,2cyclictest231221-21kworker/u16:1+flush-8:020:10:204
1687439994,4cyclictest603831-21cut22:30:114
1687439994,4cyclictest470841-21grep21:35:114
1687489986,2cyclictest86-21ksoftirqd/622:52:466
1687469987,1cyclictest0-21swapper/500:01:385
1687469986,1cyclictest0-21swapper/523:44:535
1687469985,2cyclictest0-21swapper/523:29:535
1687439987,1cyclictest0-21swapper/420:03:404
1687439984,3cyclictest369525-21cut20:50:124
1687439983,4cyclictest554041-21fschecks_count22:10:084
1687439983,4cyclictest228045-21kthreadcore19:35:134
1687469973,3cyclictest589527-21perf22:24:535
1687469973,1cyclictest821922-21latency_hist23:59:535
1687469973,1cyclictest821922-21latency_hist23:59:535
1687439975,2cyclictest724304-21kworker/u16:4+events_unbound23:25:494
1687439973,3cyclictest231828-21expr19:40:064
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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