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2026-08-27 - 08:52
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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 Thu Aug 27, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25234392920,1sleep50-21swapper/523:50:195
188978925040,7sleep50-21swapper/519:07:025
18899882427,30sleep70-21swapper/719:09:527
188974024030,7sleep40-21swapper/419:06:214
1890247992927,2cyclictest2097942-21kworker/u16:2+events_unbound21:28:384
18896892274,8sleep60-21swapper/619:05:426
1890252992521,3cyclictest2468226-21cat23:29:586
1890247992321,2cyclictest2346427-21kworker/u16:5+events_unbound22:52:194
1890247992321,2cyclictest2077617-21kworker/u16:4+events_unbound21:36:534
189024799225,6cyclictest0-21swapper/423:25:314
1890247992220,2cyclictest2334198-21kworker/u16:3+flush-8:023:17:294
1890247992220,2cyclictest2334198-21kworker/u16:3+flush-8:023:17:294
1890252992119,2cyclictest1888285-21kworker/u16:2+flush-8:019:44:596
1890247992119,2cyclictest2504654-21kworker/u16:0+flush-8:000:25:194
1890247992119,2cyclictest2234061-21kworker/u16:0+events_unbound22:05:054
1890247992119,2cyclictest2077617-21kworker/u16:4+flush-8:021:20:344
1890247992119,2cyclictest2077617-21kworker/u16:4+flush-8:021:20:344
1890247992119,2cyclictest2077617-21kworker/u16:4+events_unbound22:30:554
1890247992119,2cyclictest2077617-21kworker/u16:4+events_unbound22:13:454
1890247992119,2cyclictest2077617-21kworker/u16:4+events_unbound21:16:354
1890247992119,2cyclictest2049682-21kworker/u16:1+events_unbound21:44:034
189025799207,6cyclictest6387-21gmain22:10:187
1890257992017,2cyclictest1981278-21turbostat19:54:597
1890252992016,3cyclictest2321700-21latency_hist22:29:586
1890247992018,2cyclictest2613979-21kworker/u16:2+events_unbound00:34:124
1890247992018,2cyclictest2456054-21kworker/u16:1+flush-8:000:20:074
1890247992018,2cyclictest2346427-21kworker/u16:5+flush-8:023:03:094
1890247992018,2cyclictest2097942-21kworker/u16:2+flush-8:021:04:584
1890247992018,2cyclictest2049682-21kworker/u16:1+events_unbound22:40:334
26380882190,1sleep72638087-21ssh00:39:577
189025799190,17cyclictest0-21swapper/723:05:217
1890247991917,2cyclictest2346427-21kworker/u16:5+flush-8:023:40:264
1890247991917,2cyclictest2234061-21kworker/u16:0+events_unbound22:25:314
1890247991917,2cyclictest2077617-21kworker/u16:4+flush-8:020:55:144
1890247991917,2cyclictest2065060-21kworker/u16:0+events_unbound20:36:244
1890247991917,2cyclictest2049682-21kworker/u16:1+events_unbound20:44:054
1890257991817,0cyclictest0-21swapper/719:24:597
1890247991816,2cyclictest2549654-21kworker/u16:4+events_unbound00:07:354
1890247991816,2cyclictest2504654-21kworker/u16:0+flush-8:023:55:274
1890247991816,2cyclictest2504654-21kworker/u16:0+flush-8:000:12:464
1890247991816,2cyclictest2456054-21kworker/u16:1+events_unbound23:35:134
1890247991816,2cyclictest2456054-21kworker/u16:1+events_unbound23:32:564
1890247991816,2cyclictest2428959-21kworker/u16:2+events_unbound23:11:364
1890247991816,2cyclictest2234061-21kworker/u16:0+events_unbound22:37:384
1890247991816,2cyclictest2187914-21kworker/u16:3+flush-8:021:45:224
1890247991816,2cyclictest2077617-21kworker/u16:4+events_unbound22:21:154
1890247991816,2cyclictest2077617-21kworker/u16:4+events_unbound22:03:204
1890247991816,2cyclictest2077617-21kworker/u16:4+events_unbound21:31:054
1890247991816,2cyclictest2065060-21kworker/u16:0+events_unbound20:53:454
1890247991816,2cyclictest1899052-21kworker/u16:4+flush-8:019:16:254
1890247991816,2cyclictest1888285-21kworker/u16:2+flush-8:020:30:194
1890247991816,2cyclictest1888285-21kworker/u16:2+events_unbound20:08:334
189025799170,1cyclictest0-21swapper/720:15:217
1890247991715,2cyclictest2549654-21kworker/u16:4+events_unbound00:35:444
1890247991715,2cyclictest2428959-21kworker/u16:2+events_unbound23:48:074
1890247991715,2cyclictest2346427-21kworker/u16:5+events_unbound23:05:564
1890247991715,2cyclictest2334198-21kworker/u16:3+events_unbound22:48:034
1890247991715,2cyclictest1938253-21kworker/u16:3+events_unbound19:58:414
1890247991715,2cyclictest1938253-21kworker/u16:3+events_unbound19:31:414
1890247991715,2cyclictest1899052-21kworker/u16:4+flush-8:019:50:234
1890247991715,2cyclictest1888285-21kworker/u16:2+events_unbound19:46:554
1890247991715,2cyclictest1888285-21kworker/u16:2+events_unbound19:41:334
1890247991715,2cyclictest1836818-21kworker/u16:3+events_unbound19:13:574
1890247991715,2cyclictest1836818-21kworker/u16:3+events_unbound19:13:574
189025799166,9cyclictest6387-21gmain00:21:067
1890257991613,2cyclictest1277-21snmpd21:08:007
1890257991613,2cyclictest0-21swapper/719:15:217
1890257991612,3cyclictest1277-21snmpd20:07:477
189025799160,14cyclictest0-21swapper/720:10:227
189025799160,14cyclictest0-21swapper/720:00:217
189025299160,15cyclictest0-21swapper/621:09:596
1890247991614,2cyclictest2504654-21kworker/u16:0+flush-8:023:50:384
1890247991614,2cyclictest2065060-21kworker/u16:0+events_unbound20:47:304
1890247991614,2cyclictest1938253-21kworker/u16:3+flush-8:020:29:184
1890247991614,2cyclictest1938253-21kworker/u16:3+events_unbound19:39:574
21624462150,0sleep72162444-21ssh21:23:087
21624462150,0sleep72162444-21ssh21:23:087
189025799158,6cyclictest6387-21gmain22:20:227
189025799158,6cyclictest1277-21snmpd23:23:287
189025799158,6cyclictest1277-21snmpd23:23:287
1890257991514,0cyclictest0-21swapper/720:58:217
1890257991513,1cyclictest2492210-21turbostat23:39:587
1890257991513,1cyclictest0-21swapper/721:35:207
189025799150,13cyclictest2212229-21turbostat21:44:587
189025799150,13cyclictest0-21swapper/719:10:217
189025799150,13cyclictest0-21swapper/719:10:217
1890249991513,2cyclictest2234061-21kworker/u16:0+events_unbound22:25:095
1890249991511,3cyclictest1902797-21kthreadcore19:15:015
1890247991513,2cyclictest2097942-21kworker/u16:2+events_unbound21:11:384
1890247991513,2cyclictest2077617-21kworker/u16:4+flush-8:021:55:444
1890247991513,2cyclictest1990958-21kworker/u16:0+events_unbound20:12:574
1890247991513,2cyclictest1888285-21kworker/u16:2+flush-8:020:00:144
1890247991513,2cyclictest1816762-21kworker/u16:1+flush-8:019:22:214
189025799148,5cyclictest1277-21snmpd22:34:307
189025799148,5cyclictest1052-21lldpd20:45:487
189025799146,7cyclictest6387-21gmain22:35:147
189025799146,2cyclictest6387-21gmain19:32:587
189025799145,3cyclictest6387-21gmain19:57:107
1890257991412,1cyclictest0-21swapper/722:25:237
1890257991411,2cyclictest0-21swapper/720:35:247
1890252991413,1cyclictest0-21swapper/622:42:316
1890252991413,1cyclictest0-21swapper/622:09:256
189025299140,1cyclictest0-21swapper/621:10:466
189025299140,1cyclictest0-21swapper/600:36:396
189025299140,14cyclictest0-21swapper/622:48:026
1890249991413,1cyclictest0-21swapper/523:28:125
1890249991413,1cyclictest0-21swapper/522:45:575
1890249991411,2cyclictest2487512-21cut23:35:185
189024999140,1cyclictest0-21swapper/523:30:345
189024999140,14cyclictest0-21swapper/523:49:295
189024999140,14cyclictest0-21swapper/523:17:105
189024999140,14cyclictest0-21swapper/523:17:105
189024999140,14cyclictest0-21swapper/500:37:255
189024799149,4cyclictest2394868-21awk22:59:584
1890247991412,2cyclictest2456054-21kworker/u16:1+flush-8:000:04:534
1890247991412,2cyclictest2077617-21kworker/u16:4+events_unbound21:51:134
189025799139,3cyclictest1277-21snmpd23:04:547
189025799137,5cyclictest2175678-21turbostat21:29:587
189025799137,1cyclictest1236-21containerd00:33:227
189025799135,3cyclictest1323-21dockerd00:25:187
1890257991312,0cyclictest0-21swapper/722:06:477
189025799130,3cyclictest2443422-21ssh23:19:437
189025799130,3cyclictest2443422-21ssh23:19:437
1890252991312,1cyclictest0-21swapper/623:43:036
1890252991312,1cyclictest0-21swapper/600:13:386
1890249991312,1cyclictest0-21swapper/522:33:025
1890249991312,1cyclictest0-21swapper/521:57:055
1890249991312,1cyclictest0-21swapper/521:17:595
1890249991312,1cyclictest0-21swapper/500:17:145
1890249991311,2cyclictest2049682-21kworker/u16:1+events_unbound22:40:105
1890249991310,2cyclictest2603183-21irqcore00:25:155
1890249991310,2cyclictest2416055-21ntpq23:05:215
189024999130,1cyclictest0-21swapper/520:22:305
189024999130,13cyclictest0-21swapper/523:23:285
189024999130,13cyclictest0-21swapper/523:23:285
1890247991311,2cyclictest2456054-21kworker/u16:1+flush-8:000:15:054
1890247991311,2cyclictest1923279-21kworker/u16:0+flush-8:019:28:384
189025799129,2cyclictest2117203-21turbostat21:04:587
189025799129,2cyclictest1277-21snmpd23:54:027
189025799128,3cyclictest6387-21gmain23:31:547
189025799128,3cyclictest6275-21gmain23:11:467
189025799128,3cyclictest6275-21gmain22:40:147
189025799128,3cyclictest1277-21snmpd21:57:417
189025799128,3cyclictest1277-21snmpd20:44:487
189025799128,3cyclictest1277-21snmpd19:26:317
189025799127,4cyclictest1277-21snmpd19:35:047
189025799126,5cyclictest1277-21snmpd23:29:437
189025799126,5cyclictest1277-21snmpd00:00:117
189025799123,4cyclictest1017-21in:imjournal20:20:297
1890257991210,1cyclictest2565184-21ssh00:09:587
1890257991210,1cyclictest0-21swapper/723:47:037
189025799120,11cyclictest2236487-21turbostat21:54:597
1890252991211,1cyclictest0-21swapper/622:30:236
1890252991211,1cyclictest0-21swapper/621:23:516
1890252991211,1cyclictest0-21swapper/621:23:516
1890252991211,1cyclictest0-21swapper/620:52:576
1890252991211,1cyclictest0-21swapper/620:31:026
1890252991211,1cyclictest0-21swapper/619:51:096
1890252991211,1cyclictest0-21swapper/619:35:336
1890252991211,1cyclictest0-21swapper/600:04:306
1890252991210,2cyclictest86-21ksoftirqd/623:30:256
189025299120,1cyclictest0-21swapper/619:34:456
189024999126,5cyclictest2126915-21cat21:09:535
1890249991211,1cyclictest0-21swapper/523:11:395
1890249991211,1cyclictest0-21swapper/521:04:165
1890249991211,1cyclictest0-21swapper/519:28:545
1890249991211,1cyclictest0-21swapper/500:04:565
189024999120,1cyclictest0-21swapper/519:41:215
1890247991210,2cyclictest1990958-21kworker/u16:0+flush-8:020:24:534
189024799120,0cyclictest0-21swapper/420:15:424
189025799118,2cyclictest1277-21snmpd20:31:207
189025799118,2cyclictest1277-21snmpd19:40:377
189025799118,2cyclictest1277-21snmpd00:17:057
189025799118,2cyclictest0-21swapper/722:15:177
189025799118,2cyclictest0-21swapper/722:00:237
189025799117,3cyclictest5994-21gmain20:25:117
189025799117,3cyclictest5988-21gmain23:55:177
189025799117,3cyclictest1277-21snmpd22:45:337
189025799117,3cyclictest1277-21snmpd21:48:407
189025799117,3cyclictest1277-21snmpd20:52:397
189025799115,5cyclictest6175-21gvfs-afc-volume23:43:067
189025799110,10cyclictest1277-21snmpd22:56:277
189025799110,10cyclictest1277-21snmpd21:11:277
189025799110,10cyclictest0-21swapper/700:10:217
189025299118,2cyclictest2273595-21tr22:10:106
189025299118,2cyclictest2196924-21ntpq21:35:216
189025299117,3cyclictest86-21ksoftirqd/600:30:136
189025299117,3cyclictest2504654-21kworker/u16:0+flush-8:023:50:166
189025299116,4cyclictest2005395-21tr20:05:196
189025299114,6cyclictest0-21swapper/621:45:106
1890252991110,1cyclictest0-21swapper/621:54:176
1890252991110,1cyclictest0-21swapper/620:58:006
1890252991110,1cyclictest0-21swapper/620:47:076
1890252991110,1cyclictest0-21swapper/619:27:496
189025299110,11cyclictest0-21swapper/620:37:216
189025299110,10cyclictest1907162-21cat19:15:166
189025299110,0cyclictest0-21swapper/619:56:126
189024999118,2cyclictest1933985-21irqcore19:30:165
1890249991110,1cyclictest0-21swapper/519:53:205
1890249991110,1cyclictest0-21swapper/519:36:375
189024799119,2cyclictest2334198-21kworker/u16:3+events_unbound23:21:464
189024799119,2cyclictest2334198-21kworker/u16:3+events_unbound23:21:464
189024799119,2cyclictest2234061-21kworker/u16:0+events_unbound22:15:314
189025799107,3cyclictest6387-21gmain19:48:187
189025799103,3cyclictest1017-21in:imjournal21:33:187
1890257991010,0cyclictest0-21swapper/721:15:427
189025299109,1cyclictest0-21swapper/623:11:506
189025299109,1cyclictest0-21swapper/621:02:156
189025299109,1cyclictest0-21swapper/600:24:216
189025299108,2cyclictest86-21ksoftirqd/623:55:136
189025299108,2cyclictest86-21ksoftirqd/622:20:156
189025299106,3cyclictest2286507-21cat22:15:146
189025299106,3cyclictest1963063-21cat19:45:146
189025299105,4cyclictest2578691-21cat00:15:126
189025299105,4cyclictest2239667-21kthreadcore21:55:166
189025299102,7cyclictest2343320-21timerandwakeup22:35:266
189025299101,3cyclictest2257955-21cat22:00:276
189025299100,4cyclictest2396615-21kthreadcore23:00:156
189025299100,4cyclictest2140368-21sh21:15:136
189025299100,3cyclictest2377785-21cut22:50:206
189025299100,3cyclictest2202400-21cut21:40:156
189024999109,1cyclictest0-21swapper/523:40:025
189024999109,1cyclictest0-21swapper/522:35:235
189024999109,1cyclictest0-21swapper/519:49:525
189024999107,2cyclictest2078796-21/usr/sbin/munin20:45:255
189024999106,3cyclictest2456054-21kworker/u16:1+flush-8:000:29:585
18902579995,3cyclictest1277-21snmpd22:50:517
18902529998,1cyclictest0-21swapper/620:40:306
18902529998,1cyclictest0-21swapper/620:23:286
18902529996,2cyclictest0-21swapper/619:10:166
18902529996,2cyclictest0-21swapper/619:10:166
18902529995,3cyclictest2486425-21kthreadcore23:35:176
18902529995,3cyclictest2022984-21kthreadcore20:15:166
18902529993,5cyclictest0-21swapper/623:20:106
18902529993,5cyclictest0-21swapper/623:20:106
18902529993,5cyclictest0-21swapper/621:30:196
18902529992,6cyclictest0-21swapper/623:15:196
18902529992,6cyclictest0-21swapper/623:15:196
18902529990,8cyclictest2553951-21cstates00:05:146
18902529990,8cyclictest2505239-21ls23:45:116
18902529990,8cyclictest2165981-21kthreadcore21:25:176
18902529990,4cyclictest1913760-21/usr/sbin/munin19:20:256
18902529990,3cyclictest2602987-21iostat_ios00:25:146
18902529990,3cyclictest2410215-21cut23:05:166
18902529990,3cyclictest2388614-21cut22:55:186
18902529990,2cyclictest2011337-21cat20:10:116
18902529990,1cyclictest0-21swapper/620:00:156
18902499998,1cyclictest0-21swapper/520:42:595
18902499998,1cyclictest0-21swapper/520:02:475
18902499996,2cyclictest0-21swapper/522:15:135
18902499995,3cyclictest2566472-21cat00:10:125
18902499995,3cyclictest2089281-21cat20:50:145
18902499995,1cyclictest0-21swapper/521:54:595
18902499994,4cyclictest2055259-21cut20:30:185
18902499990,9cyclictest0-21swapper/523:55:535
18902499990,8cyclictest0-21swapper/500:20:155
18902479997,2cyclictest2077617-21kworker/u16:4+events_unbound21:05:154
18902499987,1cyclictest2252265-21kthreadcore22:00:165
18902499986,1cyclictest0-21swapper/522:55:125
18902499986,1cyclictest0-21swapper/521:40:105
18902499986,1cyclictest0-21swapper/521:10:165
18902499986,1cyclictest0-21swapper/520:35:115
18902499985,2cyclictest0-21swapper/522:20:165
18902499985,2cyclictest0-21swapper/522:14:585
18902499985,2cyclictest0-21swapper/521:45:105
18902499985,2cyclictest0-21swapper/521:20:265
18902499985,2cyclictest0-21swapper/521:20:265
18902499983,4cyclictest2262117-21if_p4p122:05:135
18902499983,4cyclictest2194605-21kthreadcore21:35:175
18902499983,4cyclictest2101579-21tr20:55:185
18902499983,4cyclictest2024250-21grep20:15:165
18902499983,4cyclictest2018978-21expr20:10:205
18902499983,4cyclictest2005252-21grep20:05:195
18902499983,4cyclictest1914761-21sed19:20:135
18902499980,5cyclictest2181736-21grep21:30:215
18902499980,5cyclictest2041885-21cut20:25:165
18902499980,4cyclictest2401102-21grep23:00:175
18902529974,2cyclictest2040762-21hwlatdetect20:25:136
18902499975,2cyclictest0-21swapper/500:05:145
18902499975,1cyclictest0-21swapper/521:25:115
18902499973,3cyclictest2371720-21tr22:50:145
18902499972,4cyclictest1984286-21grep19:55:175
18902499972,4cyclictest1890606-21cat19:10:105
18902499972,4cyclictest1890606-21cat19:10:105
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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