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2026-04-29 - 16:48
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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 29, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22475782950,1sleep72247579-21grep07:24:247
29361642740,1sleep60-21swapper/612:29:246
28028452560,0sleep50-21swapper/511:34:255
2209743995048,2cyclictest2577441-21kworker/u16:5+events_unbound10:49:194
22043902502,40sleep70-21swapper/707:04:297
220936824838,7sleep40-21swapper/407:07:554
2209743994644,2cyclictest2687163-21kworker/u16:4+flush-8:010:59:194
2209743994644,2cyclictest2687163-21kworker/u16:4+events_unbound10:54:164
2209743994644,2cyclictest2687163-21kworker/u16:4+events_unbound10:54:164
220942624635,8sleep50-21swapper/507:08:445
2209743994543,2cyclictest2820760-21kworker/u16:3+flush-8:011:54:184
2209743994239,2cyclictest2601767-21kworker/u16:2+flush-8:012:14:224
2209743994139,2cyclictest2601767-21kworker/u16:2+events_unbound12:08:004
2209743994038,2cyclictest2601767-21kworker/u16:2+events_unbound10:24:354
2209743994038,2cyclictest2378082-21kworker/u16:0+events_unbound10:44:334
2209743994037,2cyclictest2723380-21kworker/u16:1+events_unbound11:29:194
2209756993938,0cyclictest0-21swapper/712:29:167
2209743993936,2cyclictest2820760-21kworker/u16:3+flush-8:012:09:174
2209743993936,2cyclictest2171679-21kworker/u16:4+events_unbound08:14:164
2209743993836,2cyclictest2538519-21kworker/u16:2+flush-8:009:54:234
2209743993836,2cyclictest2405546-21kworker/u16:4+events_unbound09:19:174
2209743993835,2cyclictest2908915-21kworker/u16:0+events_unbound12:32:124
2209743993835,2cyclictest2820760-21kworker/u16:3+events_unbound11:59:034
2209743993835,2cyclictest2577441-21kworker/u16:5+events_unbound10:19:114
2209743993835,2cyclictest2378082-21kworker/u16:0+flush-8:009:09:154
2209743993736,1cyclictest2443796-21kworker/u16:1+events_unbound09:18:364
2209743993734,2cyclictest2820761-21kworker/u16:4+events_unbound11:49:034
2209743993734,2cyclictest2711204-21kworker/u16:0+events_unbound11:19:194
2209743993734,2cyclictest2476736-21kworker/u16:2+flush-8:009:24:164
2209756993635,0cyclictest0-21swapper/712:34:557
2209743993634,2cyclictest2820761-21kworker/u16:4+events_unbound11:46:444
2209743993634,2cyclictest2723380-21kworker/u16:1+events_unbound11:15:124
2209743993534,1cyclictest2929420-21kworker/u16:3+events_unbound12:37:114
2209743993533,2cyclictest2723380-21kworker/u16:1+events_unbound11:27:434
29286602340,1chrt2928658-21sh12:27:327
2209756993431,2cyclictest2760237-21/usr/sbin/munin11:19:157
2209743993432,2cyclictest2711204-21kworker/u16:0+events_unbound11:39:244
2209743993432,2cyclictest2708011-21kworker/u16:6+events_unbound11:38:124
2209743993432,2cyclictest2577441-21kworker/u16:5+events_unbound10:14:354
2209743993432,2cyclictest2577441-21kworker/u16:5+events_unbound10:14:354
2209743993432,2cyclictest2550874-21kworker/u16:3+events_unbound09:52:484
2209743993432,2cyclictest2117756-21kworker/u16:1+events_unbound07:14:174
2209743993431,2cyclictest2443796-21kworker/u16:1+events_unbound09:35:444
2209743993431,2cyclictest2443796-21kworker/u16:1+events_unbound09:35:444
2209756993331,1cyclictest2793241-21ssh11:29:327
2209743993331,2cyclictest2708011-21kworker/u16:6+events_unbound11:06:444
2209743993331,2cyclictest2601767-21kworker/u16:2+events_unbound12:23:114
2209743993331,2cyclictest2378082-21kworker/u16:0+flush-8:010:34:194
2209743993331,2cyclictest2378082-21kworker/u16:0+events_unbound10:33:474
2209743993331,2cyclictest2378082-21kworker/u16:0+events_unbound10:04:164
2209743993331,2cyclictest2290285-21kworker/u16:2+flush-8:007:49:204
2209743993330,2cyclictest2290285-21kworker/u16:2+events_unbound08:39:154
220941523323,7sleep60-21swapper/607:08:376
2209756993228,3cyclictest2608763-21cut10:14:247
2209756993228,3cyclictest2608763-21cut10:14:247
2209743993230,2cyclictest2601767-21kworker/u16:2+events_unbound11:11:204
2209743993230,2cyclictest2405546-21kworker/u16:4+events_unbound08:49:274
2209756993129,1cyclictest0-21swapper/711:01:127
2209756993128,2cyclictest2882256-21perl12:09:157
2209743993129,2cyclictest2723380-21kworker/u16:1+events_unbound12:28:474
2209743993129,2cyclictest2538519-21kworker/u16:2+flush-8:009:59:514
2209743993128,2cyclictest2171679-21kworker/u16:4+flush-8:008:19:124
2209756993029,0cyclictest0-21swapper/709:49:037
220975699300,28cyclictest2583508-21taskset10:04:247
2209752993027,3cyclictest2723380-21kworker/u16:1+flush-8:012:19:316
2209756992928,0cyclictest0-21swapper/711:50:237
2209756992928,0cyclictest0-21swapper/707:59:177
2209756992927,1cyclictest0-21swapper/711:09:327
2209756992926,1cyclictest2910659-21ssh12:19:247
2209743992927,2cyclictest2577441-21kworker/u16:5+events_unbound10:39:344
2209743992927,2cyclictest2443796-21kworker/u16:1+events_unbound09:29:114
2209743992927,2cyclictest2290285-21kworker/u16:2+events_unbound08:33:574
2209756992826,1cyclictest0-21swapper/712:04:317
2209743992826,2cyclictest2538519-21kworker/u16:2+events_unbound09:47:084
2209743992826,2cyclictest2117756-21kworker/u16:1+events_unbound08:04:244
220975699270,25cyclictest2556542-21cut09:54:227
2209743992725,2cyclictest2443796-21kworker/u16:1+events_unbound09:39:524
2209743992725,2cyclictest2117756-21kworker/u16:1+flush-8:007:39:124
2209756992622,3cyclictest2398388-21cut08:44:197
220975699260,24cyclictest635-21systemd-journal08:29:027
2209752992624,2cyclictest2443796-21kworker/u16:1+flush-8:009:49:166
2209743992624,2cyclictest2378082-21kworker/u16:0+events_unbound10:11:244
2209752992523,2cyclictest2601767-21kworker/u16:2+flush-8:010:54:246
2209752992523,2cyclictest2601767-21kworker/u16:2+flush-8:010:54:246
2209756992423,0cyclictest0-21swapper/709:33:437
2209756992423,0cyclictest0-21swapper/709:25:117
2209756992421,2cyclictest2901212-21cut12:14:257
220975699240,22cyclictest2659818-21timerwakeupswit10:34:337
2209756992322,0cyclictest0-21swapper/711:27:107
2209756992321,1cyclictest0-21swapper/710:27:127
2209752992321,2cyclictest2577441-21kworker/u16:5+flush-8:010:29:296
2209756992216,5cyclictest2395723-21latency_hist08:44:017
2209743992219,2cyclictest2405546-21kworker/u16:4+events_unbound08:54:204
2209743992219,2cyclictest2405546-21kworker/u16:4+events_unbound08:54:204
2209756992120,0cyclictest0-21swapper/710:19:037
2209756992116,4cyclictest2468097-21latency_hist09:19:027
2209752992119,2cyclictest2290285-21kworker/u16:2+flush-8:008:44:286
2209743992119,2cyclictest2290285-21kworker/u16:2+flush-8:007:54:274
2209743992119,2cyclictest2250791-21kworker/u16:0+flush-8:007:28:574
2209756992019,0cyclictest0-21swapper/711:57:397
2209756992019,0cyclictest0-21swapper/710:39:367
2209756992019,0cyclictest0-21swapper/709:43:287
2209756992018,1cyclictest2821342-21ssh11:44:147
2209756992014,5cyclictest2328591-21latency_hist08:09:027
2209752992018,2cyclictest2601767-21kworker/u16:2+flush-8:010:19:376
2209752992018,2cyclictest2443796-21kworker/u16:1+flush-8:009:34:186
2209752992018,2cyclictest2443796-21kworker/u16:1+flush-8:009:34:186
2209752992017,2cyclictest2577441-21kworker/u16:5+flush-8:010:49:076
2209756991914,4cyclictest2868943-21latency_hist12:04:027
2209750991917,2cyclictest2601767-21kworker/u16:2+flush-8:012:29:555
2209743991917,2cyclictest1503585-21kworker/u16:2+events_unbound07:11:404
2209743991916,2cyclictest2171679-21kworker/u16:4+events_unbound08:24:124
2209756991816,1cyclictest0-21swapper/710:52:527
2209756991813,4cyclictest2759762-21latency_hist11:19:027
2209756991812,5cyclictest2445059-21cat09:09:177
220975299180,1cyclictest0-21swapper/611:02:456
2209743991816,2cyclictest2117756-21kworker/u16:1+flush-8:008:00:234
2209756991716,0cyclictest0-21swapper/710:32:037
2209756991715,1cyclictest2443763-21diskmemload09:48:247
2209756991715,1cyclictest0-21swapper/709:35:247
2209756991715,1cyclictest0-21swapper/709:35:247
220975699170,15cyclictest2724807-21irqcore11:04:187
22566742160,1sleep60-21swapper/607:29:206
2209756991613,2cyclictest2279584-21ntpq07:39:277
2209743991614,2cyclictest2378082-21kworker/u16:0+events_unbound09:04:284
2209743991614,2cyclictest2219554-21kworker/u16:3+flush-8:007:23:574
2209743991614,2cyclictest2219554-21kworker/u16:3+flush-8:007:23:574
2209743991614,2cyclictest2117756-21kworker/u16:1+flush-8:007:34:314
220975699156,7cyclictest6382-21gvfs-afc-volume11:34:297
2209756991514,0cyclictest0-21swapper/711:39:107
2209756991513,1cyclictest2479572-21ssh09:22:527
220975699150,13cyclictest2226251-21cut07:14:217
2209743991513,2cyclictest2219554-21kworker/u16:3+flush-8:007:44:254
2209756991411,2cyclictest0-21swapper/707:24:027
2209756991411,2cyclictest0-21swapper/707:24:027
220975699140,12cyclictest2699957-21expr10:54:147
220975699140,12cyclictest2699957-21expr10:54:147
220975699140,12cyclictest2385136-21ldconfig08:34:257
2209752991413,1cyclictest0-21swapper/609:13:206
220975299140,1cyclictest0-21swapper/610:48:336
2209750991413,1cyclictest0-21swapper/509:50:165
2209750991413,1cyclictest0-21swapper/509:17:105
2209750991413,1cyclictest0-21swapper/507:59:175
220975699139,3cyclictest1234-21snmpd10:09:277
220975699139,3cyclictest1234-21snmpd08:17:427
220975699138,4cyclictest2300938-21cat07:54:187
2209752991312,1cyclictest0-21swapper/610:38:186
2209752991312,1cyclictest0-21swapper/610:03:566
2209752991312,1cyclictest0-21swapper/607:44:346
2209752991311,2cyclictest2663819-21kworker/u16:1+flush-8:010:39:386
2209750991312,1cyclictest0-21swapper/511:49:185
220975099130,13cyclictest0-21swapper/511:46:375
2209743991311,2cyclictest2405546-21kworker/u16:4+events_unbound08:59:174
220975699128,3cyclictest1234-21snmpd10:03:577
220975699128,3cyclictest1234-21snmpd08:32:427
220975699128,3cyclictest1234-21snmpd08:12:457
220975699128,3cyclictest1234-21snmpd07:53:237
220975699128,3cyclictest1234-21snmpd07:33:537
220975699128,3cyclictest1234-21snmpd07:10:087
2209756991210,1cyclictest2407408-21kthreadcore08:49:197
2209752991210,2cyclictest86-21ksoftirqd/607:52:366
2209752991210,2cyclictest2708011-21kworker/u16:6+flush-8:011:34:246
2209752991210,2cyclictest2443796-21kworker/u16:1+flush-8:010:09:436
220975299120,1cyclictest0-21swapper/607:38:346
220975299120,12cyclictest0-21swapper/608:41:576
2209750991211,1cyclictest0-21swapper/507:54:335
220975099120,11cyclictest0-21swapper/507:39:065
220974399120,12cyclictest0-21swapper/407:31:134
220975699118,2cyclictest1234-21snmpd10:45:377
220975699116,4cyclictest2348907-21cat08:19:167
220975699116,4cyclictest2281742-21cat07:44:177
220975699112,8cyclictest0-21swapper/708:58:507
220975699112,8cyclictest0-21swapper/708:58:507
2209756991111,0cyclictest0-21swapper/709:05:507
220975299110,11cyclictest0-21swapper/607:40:476
220975099110,11cyclictest0-21swapper/507:38:095
220974399119,2cyclictest2117756-21kworker/u16:1+flush-8:008:34:274
26448052100,1sleep5741rcuc/510:29:255
220975699106,3cyclictest1234-21snmpd09:01:137
220975699104,5cyclictest2263789-21cut07:34:177
220975299109,1cyclictest0-21swapper/609:14:536
220975299108,2cyclictest86-21ksoftirqd/612:35:046
220975299108,2cyclictest86-21ksoftirqd/611:55:496
220975299108,2cyclictest86-21ksoftirqd/611:15:276
220975299108,2cyclictest86-21ksoftirqd/609:41:116
220975299108,2cyclictest86-21ksoftirqd/608:59:306
220975299108,2cyclictest86-21ksoftirqd/607:09:166
220975299108,2cyclictest2405546-21kworker/u16:4+flush-8:009:19:126
220975299100,9cyclictest0-21swapper/611:29:296
220975299100,9cyclictest0-21swapper/610:14:396
220975299100,9cyclictest0-21swapper/610:14:396
220975299100,9cyclictest0-21swapper/607:14:046
220974399108,2cyclictest2290285-21kworker/u16:2+flush-8:008:44:234
22097529997,2cyclictest86-21ksoftirqd/612:24:486
22097529997,2cyclictest86-21ksoftirqd/612:10:496
22097529997,2cyclictest86-21ksoftirqd/611:59:086
22097529997,2cyclictest86-21ksoftirqd/611:53:166
22097529997,2cyclictest86-21ksoftirqd/611:42:396
22097529997,2cyclictest86-21ksoftirqd/611:19:506
22097529997,2cyclictest86-21ksoftirqd/610:27:556
22097529997,2cyclictest86-21ksoftirqd/609:55:096
22097529997,2cyclictest86-21ksoftirqd/609:29:106
22097529997,2cyclictest86-21ksoftirqd/609:25:446
22097529991,8cyclictest0-21swapper/611:14:016
22097529990,8cyclictest0-21swapper/612:15:476
22097509996,2cyclictest14150irq/27-ahci[0000:00:1f.2]08:39:155
2250891280,0sleep60-21swapper/607:24:316
22097529986,2cyclictest86-21ksoftirqd/611:45:096
22097529986,2cyclictest86-21ksoftirqd/611:25:056
22097529986,2cyclictest86-21ksoftirqd/611:04:276
22097529986,2cyclictest86-21ksoftirqd/610:06:066
22097529986,2cyclictest86-21ksoftirqd/609:44:416
22097529985,2cyclictest2117756-21kworker/u16:1+flush-8:008:00:096
22097529984,4cyclictest0-21swapper/612:04:236
22097529980,1cyclictest0-21swapper/608:29:026
22097529975,2cyclictest2171679-21kworker/u16:4+flush-8:008:14:276
22097529971,6cyclictest0-21swapper/608:49:216
22097529970,2cyclictest2242083-21pool-NetworkMan07:22:446
22097529970,2cyclictest2242083-21pool-NetworkMan07:22:446
22097529970,1cyclictest0-21swapper/608:54:286
22097529970,1cyclictest0-21swapper/608:54:286
22097529970,1cyclictest0-21swapper/608:19:186
22097509974,2cyclictest22817552chrt07:44:175
22097509973,4cyclictest0-21swapper/509:11:005
22097509973,3cyclictest2220795-21tr07:14:055
22097509973,3cyclictest2211715-21grep07:09:185
22097509972,4cyclictest6331-21gdbus11:24:015
22097509972,3cyclictest0-21swapper/512:03:055
22097509970,4cyclictest0-21swapper/509:20:205
22097509970,3cyclictest0-21swapper/511:54:505
22097509970,1cyclictest0-21swapper/510:40:515
22097439975,2cyclictest2171679-21kworker/u16:4+events_unbound08:10:324
22097529960,6cyclictest0-21swapper/608:09:146
22097529960,6cyclictest0-21swapper/607:54:176
22097529960,5cyclictest0-21swapper/609:04:046
22097529960,1cyclictest0-21swapper/608:34:226
22097529960,1cyclictest0-21swapper/608:29:156
22097529960,0cyclictest0-21swapper/608:04:206
22097509964,2cyclictest2708011-21kworker/u16:6+nfsiod11:04:165
22097509964,1cyclictest681rcuog/412:16:495
22097509964,1cyclictest0-21swapper/510:47:125
22097509964,1cyclictest0-21swapper/507:34:025
22097509963,2cyclictest27939402sleep511:30:015
22097509963,2cyclictest27817682sleep511:24:565
22097509963,2cyclictest26976432sleep510:51:385
22097509963,2cyclictest26606562chrt10:35:425
22097509963,2cyclictest25041182sleep509:33:165
22097509963,2cyclictest1-21systemd07:54:015
22097509962,4cyclictest0-21swapper/510:19:535
22097509962,1cyclictest681rcuog/409:40:285
22097509961,1cyclictest681rcuog/412:10:455
22097509961,1cyclictest201rcu_preempt11:01:015
22097509961,1cyclictest201rcu_preempt10:09:135
22097509961,1cyclictest0-21swapper/510:18:555
22097509961,1cyclictest0-21swapper/510:18:555
22097509960,3cyclictest0-21swapper/511:11:125
22097509960,3cyclictest0-21swapper/510:25:575
22097509960,3cyclictest0-21swapper/508:51:195
22097509960,3cyclictest0-21swapper/508:09:495
22097509960,2cyclictest0-21swapper/512:38:385
22097509960,2cyclictest0-21swapper/511:15:535
22097509960,1cyclictest0-21swapper/510:03:455
22097509960,1cyclictest0-21swapper/509:54:295
22097509960,1cyclictest0-21swapper/509:44:125
22097509952,1cyclictest0-21swapper/508:24:235
22097509950,5cyclictest0-21swapper/512:24:245
22097509950,4cyclictest2905760-21taskset12:19:135
22097509950,4cyclictest2878856-21chrt12:05:025
22097509950,4cyclictest2708787-21chrt10:54:415
22097509950,4cyclictest2708787-21chrt10:54:415
22097509950,4cyclictest2489477-21taskset09:24:335
22097509950,4cyclictest2424956-21chrt08:59:095
22097509950,4cyclictest2424320-21taskset08:55:405
22097509950,4cyclictest2424320-21taskset08:55:405
22097509950,4cyclictest2376909-21chrt08:34:095
22097509950,4cyclictest2376210-21taskset08:29:445
22097509950,4cyclictest2348116-21chrt08:19:025
22097509950,4cyclictest2338554-21chrt08:14:065
22097509950,4cyclictest2319365-21taskset08:04:045
22097509950,4cyclictest2242564-21chrt07:24:065
22097509950,4cyclictest2241892-21taskset07:20:055
22097509950,4cyclictest2241892-21taskset07:20:055
22097509950,3cyclictest0-21swapper/509:04:465
22097509950,1cyclictest201rcu_preempt09:34:185
22097509950,1cyclictest201rcu_preempt09:34:185
22097509950,1cyclictest0-21swapper/511:39:175
22097509950,1cyclictest0-21swapper/510:04:245
22097509950,1cyclictest0-21swapper/508:44:435
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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