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2026-07-02 - 04:47
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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 rackeslot6.osadl.org (updated Thu Jul 02, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127774499140130,7cyclictest1370823-40logrotate00:00:000
127774599127114,10cyclictest1213033-21systemd-journal00:30:001
127774599123114,7cyclictest1383629-21latency_hist00:40:001
127774499120110,7cyclictest1335541-21latency_hist22:10:010
127774599118106,9cyclictest1288790-21latency_hist19:45:001
127774499118107,8cyclictest1301786-21latency_hist20:25:010
127774499116110,5cyclictest1330482-21kworker/u8:3+events_unbound22:35:230
127774499115101,12cyclictest1290375-21latency_hist19:50:010
127774499113106,5cyclictest1370889-21kworker/u8:3+flush-179:000:00:150
127774499112105,6cyclictest1308147-21kworker/u8:0+events_unbound21:10:240
12777449910899,4cyclictest1351772-21kworker/u8:3+events_unbound23:30:210
12777449910699,5cyclictest1277028-21kworker/u8:1+events_unbound19:15:170
12777449910696,4cyclictest1297037-21kworker/u8:1+events_unbound20:15:250
127774499105100,4cyclictest1345256-21kworker/u8:1+events_unbound22:55:240
12777459910292,7cyclictest1311331-21latency_hist20:55:011
12777459910195,4cyclictest1330482-21kworker/u8:3+events_unbound22:05:141
12777449910192,6cyclictest1304964-21latency_hist20:35:000
12777449910191,7cyclictest1285595-21latency_hist19:35:010
1277745999990,6cyclictest1298590-21latency_hist20:15:011
1277745999894,3cyclictest1330482-21kworker/u8:3+events_unbound22:40:211
1277745999889,7cyclictest1309746-21latency_hist20:50:011
1277744999791,4cyclictest1300158-21kworker/u8:3+events_unbound20:40:210
1277745999685,9cyclictest1356753-21apt-get23:15:091
1277744999688,6cyclictest1338702-21kworker/u8:1+flush-179:022:20:210
1277744999590,4cyclictest1301821-21kworker/u8:1+events_unbound20:25:180
1277744999586,3cyclictest1308147-21kworker/u8:0+events_unbound21:00:190
1277744999584,8cyclictest1213033-21systemd-journal21:40:010
1277745999490,3cyclictest2872936-21cups-browsed00:00:011
1277745999487,5cyclictest1297004-21latency_hist20:10:001
1277744999490,3cyclictest1325700-21kworker/u8:1+events_unbound21:40:260
1277744999385,6cyclictest1213033-21systemd-journal00:35:000
1277745999281,8cyclictest1338978-21/usr/sbin/munin22:20:231
1277745999185,4cyclictest1304958-21kworker/u8:2+events_unbound20:35:271
1277747999088,1cyclictest0-21swapper/319:40:593
1277746998885,2cyclictest0-21swapper/219:40:592
1277745998777,8cyclictest1350384-21apt-get22:55:111
1277744998783,3cyclictest1367685-21kworker/u8:1+events_unbound23:50:210
1277744998783,3cyclictest1347984-21kworker/u8:0+events_unbound23:25:130
1277744998782,4cyclictest1370889-21kworker/u8:3+events_unbound00:20:260
1277744998782,4cyclictest1330482-21kworker/u8:3+events_unbound22:25:230
1277744998682,3cyclictest1367685-21kworker/u8:1+events_unbound00:35:260
1277744998682,3cyclictest1304469-21kworker/u8:0+flush-179:020:35:220
1277744998681,4cyclictest1370889-21kworker/u8:3+events_unbound00:05:260
1277744998681,4cyclictest1330482-21kworker/u8:3+events_unbound21:59:570
1277744998673,10cyclictest1323712-21apt-get21:30:240
1277745998581,3cyclictest1284042-21kworker/u8:3+events_unbound19:37:091
1277744998576,6cyclictest1319310-21latency_hist21:20:020
1277744998575,4cyclictest1330482-21kworker/u8:3+events_unbound22:40:190
1277745998479,3cyclictest1367685-21kworker/u8:1+events_unbound00:15:171
1277745998376,5cyclictest1313197-21apt-get21:00:111
1277745998372,9cyclictest1353344-21awk23:05:001
1277744998270,9cyclictest1213033-21systemd-journal00:30:000
1277745998176,4cyclictest1287166-21kworker/u8:2+events_unbound20:21:101
1277745998075,4cyclictest1277662-21kworker/u8:3+events_unbound19:20:011
1277745998071,6cyclictest1327324-21latency_hist21:45:001
1277744998075,4cyclictest1347984-21kworker/u8:0+events_unbound23:35:260
1277744998072,3cyclictest1308147-21kworker/u8:0+events_unbound20:45:090
1277744997974,4cyclictest1330482-21kworker/u8:3+events_unbound22:00:200
1277744997969,4cyclictest1347984-21kworker/u8:0+events_unbound23:21:030
1277745997868,7cyclictest1366064-21latency_hist23:45:011
1277744997873,3cyclictest1367650-21latency_hist23:50:010
1277745997773,3cyclictest1342612-21kworker/u8:0+events_unbound22:30:171
1277744997772,4cyclictest1330482-21kworker/u8:3+events_unbound22:14:100
1277744997769,3cyclictest1370889-21kworker/u8:3+events_unbound00:10:270
1277744997672,3cyclictest1308147-21kworker/u8:0+events_unbound21:20:160
1277744997671,4cyclictest1309992-21kworker/u8:1+events_unbound20:59:560
1277744997671,4cyclictest1295348-21kworker/u8:3+flush-179:020:05:270
1277745997565,9cyclictest1277028-21kworker/u8:1+flush-179:019:30:151
1277745997563,10cyclictest1213033-21systemd-journal19:50:201
1277744997567,6cyclictest1284006-21latency_hist19:30:010
1277744997566,3cyclictest1308147-21kworker/u8:0+events_unbound20:54:100
1277744997565,4cyclictest1345256-21kworker/u8:1+events_unbound23:00:300
1277745997470,3cyclictest1370889-21kworker/u8:3+events_unbound00:13:251
1277745997470,3cyclictest1314517-21kworker/u8:3+events_unbound21:12:101
1277745997464,7cyclictest1314517-21kworker/u8:3+flush-179:021:30:241
1277744997469,4cyclictest1295348-21kworker/u8:3+events_unbound20:04:560
1277744997465,3cyclictest1345256-21kworker/u8:1+events_unbound23:05:140
1277745997369,3cyclictest1361263-21kworker/u8:2+flush-179:023:45:121
1277745997368,4cyclictest1320887-21kworker/u8:2+events_unbound21:39:561
1277745997268,3cyclictest1347984-21kworker/u8:0+events_unbound22:50:171
1277745997268,3cyclictest1314517-21kworker/u8:3+events_unbound21:19:101
1277745997167,3cyclictest1277028-21kworker/u8:1+events_unbound19:29:111
1277744997167,3cyclictest1370889-21kworker/u8:3+events_unbound00:18:220
1277744997162,3cyclictest1325700-21kworker/u8:1+events_unbound21:50:450
1277744997065,4cyclictest1288777-21kworker/u8:0+events_unbound20:14:110
1277745996964,4cyclictest1338702-21kworker/u8:1+events_unbound22:29:111
1277745996961,5cyclictest1361280-21latency_hist23:30:011
1277744996965,3cyclictest1347984-21kworker/u8:0+events_unbound23:18:110
1277744996962,5cyclictest1288777-21kworker/u8:0+events_unbound19:55:240
1277744996864,3cyclictest1277028-21kworker/u8:1+events_unbound19:42:090
1277744996860,3cyclictest1345256-21kworker/u8:1+events_unbound22:54:100
1277745996763,3cyclictest1364433-21kworker/u8:1+events_unbound23:38:091
1277745996757,8cyclictest1213033-21systemd-journal23:55:001
1277744996762,4cyclictest1320886-21kworker/u8:1+events_unbound21:25:110
1277745996662,3cyclictest1300158-21kworker/u8:3+events_unbound20:44:111
1277745996655,8cyclictest1213033-21systemd-journal22:20:011
1277744996560,4cyclictest1277662-21kworker/u8:3+events_unbound19:14:100
1277747996462,1cyclictest0-21swapper/321:43:593
1277745996459,4cyclictest1290406-21kworker/u8:1+flush-179:020:00:161
1277745996457,5cyclictest1367685-21kworker/u8:1+flush-179:000:30:241
1277745996352,8cyclictest1213033-21systemd-journal23:10:011
1277744996353,8cyclictest1327581-21apt-get21:45:110
1277746996259,2cyclictest0-21swapper/221:43:592
1277744996252,7cyclictest1-21systemd22:20:000
1277745996153,7cyclictest1351772-21kworker/u8:3+flush-179:023:20:171
1277745996056,3cyclictest1277028-21kworker/u8:1+events_unbound19:13:101
1277745996052,6cyclictest1314517-21kworker/u8:3+events_unbound21:30:011
1277744996055,4cyclictest1347984-21kworker/u8:0+events_unbound22:48:100
1277745995852,5cyclictest1330482-21kworker/u8:3+events_unbound22:00:231
1277744995854,3cyclictest1287166-21kworker/u8:2+events_unbound19:50:170
1277745995753,3cyclictest1367685-21kworker/u8:1+events_unbound00:23:211
1277745995747,8cyclictest1277607-21latency_hist19:10:011
1277745995652,3cyclictest1370889-21kworker/u8:3+events_unbound00:01:161
1277745995652,3cyclictest1330482-21kworker/u8:3+events_unbound22:13:091
1277745995648,6cyclictest1320887-21kworker/u8:2+events_unbound21:50:001
1277745995553,1cyclictest1330479-21kworker/u8:0+flush-179:021:55:041
1277745995449,4cyclictest1280868-21kworker/u8:2+events_unbound19:21:091
1277744995450,2cyclictest714-21Xorg23:42:590
1277747995345,6cyclictest1304977-21turbostat20:35:003
1277745995349,3cyclictest1308147-21kworker/u8:0+events_unbound20:55:361
1277745995349,3cyclictest1288777-21kworker/u8:0+events_unbound20:17:001
1277745995347,5cyclictest1330482-21kworker/u8:3+events_unbound22:40:001
1277745995347,4cyclictest1293822-21latency_hist20:00:011
1277744995349,3cyclictest1308147-21kworker/u8:0+events_unbound21:09:110
1277747995250,1cyclictest0-21swapper/320:52:593
1277745995248,3cyclictest1354945-21kworker/u8:2+events_unbound23:10:031
1277745995143,6cyclictest1330512-21apt-get21:55:001
4577091500,13ptp4l441ktimers/319:10:003
1277745995046,3cyclictest1345256-21kworker/u8:1+events_unbound22:47:511
1277745995046,3cyclictest1300158-21kworker/u8:3+events_unbound20:29:001
1277745995045,4cyclictest1304469-21kworker/u8:0+events_unbound20:32:091
1277746994946,2cyclictest0-21swapper/220:52:592
1277745994943,4cyclictest1362868-21latency_hist23:35:011
1277744994743,3cyclictest1330482-21kworker/u8:3+events_unbound22:30:080
1277745994638,7cyclictest1314517-21kworker/u8:3+flush-179:021:20:201
1277744994642,3cyclictest1354945-21kworker/u8:2+events_unbound23:14:110
127774799430,40cyclictest1377280-21turbostat00:20:003
1277745994338,4cyclictest1287166-21kworker/u8:2+events_unbound19:45:411
1277744994238,3cyclictest1277028-21kworker/u8:1+events_unbound19:35:020
127774799410,38cyclictest1282424-21turbostat19:25:003
127774799400,38cyclictest1362871-21turbostat23:35:013
1277744994034,5cyclictest1280798-21kworker/u8:0+events_unbound19:20:190
1277746993936,2cyclictest0-21swapper/221:20:012
127774699390,36cyclictest0-21swapper/221:48:592
127774799380,2cyclictest0-21swapper/320:36:593
1277746993835,2cyclictest0-21swapper/220:32:592
127774699380,36cyclictest0-21swapper/223:24:552
127774699380,35cyclictest0-21swapper/221:59:592
1277745993832,5cyclictest1308147-21kworker/u8:0+flush-179:021:05:231
1277747993734,2cyclictest0-21swapper/320:04:593
1277747993734,2cyclictest0-21swapper/319:14:553
127774799370,35cyclictest0-21swapper/300:30:593
127774799370,1cyclictest0-21swapper/320:19:593
1277746993734,2cyclictest0-21swapper/200:30:592
1277746993734,2cyclictest0-21swapper/200:06:592
127774699370,35cyclictest0-21swapper/219:52:592
127774699370,2cyclictest0-21swapper/220:36:592
127774799360,35cyclictest0-21swapper/300:29:553
127774799360,1cyclictest0-21swapper/323:24:543
127774799360,1cyclictest0-21swapper/321:33:593
1277746993633,2cyclictest0-21swapper/200:40:002
127774699360,34cyclictest0-21swapper/223:07:592
127774699360,1cyclictest0-21swapper/223:35:002
127774699360,1cyclictest0-21swapper/222:15:592
127774699360,1cyclictest0-21swapper/200:20:002
1277747993533,1cyclictest0-21swapper/319:48:593
1277747993533,1cyclictest0-21swapper/319:33:593
1277747993532,2cyclictest0-21swapper/323:04:593
1277747993532,2cyclictest0-21swapper/321:05:593
1277746993532,2cyclictest0-21swapper/220:41:592
1277746993532,2cyclictest0-21swapper/200:01:592
127774699350,1cyclictest0-21swapper/219:25:002
127774699350,1cyclictest0-21swapper/200:27:592
1277745993530,3cyclictest321-21hwrng00:05:261
1277746993432,1cyclictest0-21swapper/220:04:592
1277746993431,2cyclictest0-21swapper/219:14:552
1277747993331,1cyclictest0-21swapper/322:20:583
1277747993329,2cyclictest0-21swapper/321:50:593
1277746993330,2cyclictest0-21swapper/219:33:592
1277747993229,2cyclictest0-21swapper/322:39:593
1277747993228,2cyclictest1320905-21turbostat21:25:003
1277746993229,2cyclictest0-21swapper/219:48:592
1277746993228,2cyclictest0-21swapper/222:20:592
1277747993129,1cyclictest0-21swapper/323:54:593
1277747993128,2cyclictest0-21swapper/323:29:593
1277746993129,1cyclictest0-21swapper/223:04:592
1277746993128,2cyclictest0-21swapper/221:05:592
1277747993028,1cyclictest0-21swapper/321:29:593
1277747993023,6cyclictest1284020-21turbostat19:30:003
127774799300,3cyclictest1337141-21turbostat22:19:543
127774799300,28cyclictest0-21swapper/322:05:123
127774799300,28cyclictest0-21swapper/319:50:143
1277746993027,2cyclictest0-21swapper/222:05:112
1277746993027,2cyclictest0-21swapper/200:00:012
127774699300,28cyclictest0-21swapper/219:35:132
1277747992927,1cyclictest0-21swapper/323:35:133
1277747992927,1cyclictest0-21swapper/323:15:003
1277747992927,1cyclictest0-21swapper/322:50:583
1277747992927,1cyclictest0-21swapper/322:28:003
1277747992927,1cyclictest0-21swapper/320:05:123
1277747992927,1cyclictest0-21swapper/319:35:133
1277747992927,1cyclictest0-21swapper/300:05:173
1277747992926,2cyclictest0-21swapper/322:00:113
127774799290,2cyclictest0-21swapper/321:15:143
127774799290,28cyclictest0-21swapper/322:40:033
127774799290,28cyclictest0-21swapper/320:45:133
127774799290,28cyclictest0-21swapper/300:00:013
127774799290,27cyclictest0-21swapper/320:25:133
127774799290,27cyclictest0-21swapper/300:20:143
1277746992926,2cyclictest0-21swapper/220:25:132
127774699290,2cyclictest0-21swapper/221:51:582
127774699290,27cyclictest0-21swapper/222:57:592
127774699290,27cyclictest0-21swapper/222:40:012
127774699290,27cyclictest0-21swapper/222:35:132
127774699290,27cyclictest0-21swapper/222:30:592
127774699290,27cyclictest0-21swapper/220:45:132
127774699290,27cyclictest0-21swapper/220:05:122
127774699290,1cyclictest0-21swapper/223:35:142
4577091280,6ptp4l441ktimers/322:15:003
4577091280,5ptp4l61490irq/134-eno1-TxRx-019:59:553
1277747992826,1cyclictest0-21swapper/322:58:003
1277747992826,1cyclictest0-21swapper/320:40:143
1277747992826,1cyclictest0-21swapper/320:20:593
1277747992824,2cyclictest0-21swapper/321:35:593
127774799280,2cyclictest0-21swapper/321:55:023
127774799280,2cyclictest0-21swapper/300:00:023
127774799280,21cyclictest1328927-21turbostat21:49:593
127774799280,1cyclictest0-21swapper/319:19:593
1277746992826,1cyclictest0-21swapper/223:55:002
1277746992825,2cyclictest0-21swapper/222:00:112
1277746992825,2cyclictest0-21swapper/200:12:592
1277746992824,2cyclictest0-21swapper/222:27:592
1277746992824,2cyclictest0-21swapper/221:29:552
127774699280,2cyclictest0-21swapper/222:13:002
127774699280,2cyclictest0-21swapper/221:30:252
127774699280,27cyclictest0-21swapper/223:10:122
127774699280,26cyclictest0-21swapper/223:18:582
127774699280,26cyclictest0-21swapper/220:20:592
127774699280,21cyclictest0-21swapper/200:20:132
4577091270,6ptp4l61490irq/134-eno1-TxRx-021:15:013
4577091270,6ptp4l441ktimers/300:15:003
1277747992725,1cyclictest0-21swapper/300:38:003
1277747992724,2cyclictest0-21swapper/320:58:583
127774799270,26cyclictest0-21swapper/323:18:593
127774799270,26cyclictest0-21swapper/322:30:593
1277746992725,1cyclictest0-21swapper/221:25:002
1277746992724,2cyclictest0-21swapper/223:29:592
1277746992724,2cyclictest0-21swapper/219:18:592
1277746992723,3cyclictest0-21swapper/222:50:592
127774699270,25cyclictest0-21swapper/220:15:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-023:45:003
4577091260,5ptp4l441ktimers/322:49:563
127774799260,1cyclictest0-21swapper/320:14:593
1277746992623,2cyclictest0-21swapper/223:41:592
1277746992623,2cyclictest0-21swapper/219:28:592
1277747992521,2cyclictest0-21swapper/321:03:593
1277746992422,1cyclictest0-21swapper/220:59:562
1277746992420,2cyclictest0-21swapper/221:35:592
4577091220,3ptp4l61490irq/134-eno1-TxRx-023:49:553
1277746992219,2cyclictest0-21swapper/221:11:592
127774499224,7cyclictest151ktimers/019:10:010
1277746992118,2cyclictest0-21swapper/219:58:002
1277746992017,2cyclictest0-21swapper/221:03:592
1277746991918,1cyclictest0-21swapper/220:14:592
1277746991715,1cyclictest0-21swapper/222:50:012
127774799155,8cyclictest67-21kworker/3:1+events23:05:183
1277746991411,2cyclictest0-21swapper/223:47:582
12777469920,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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