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2026-07-05 - 20:35
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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 Sun Jul 05, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235911199130123,5cyclictest2422005-21kworker/u8:2+events_unbound10:50:011
235910899123115,5cyclictest2452482-21latency_hist12:00:010
235911199115108,5cyclictest2433333-21kworker/u8:1+events_unbound11:15:011
235910899114107,4cyclictest2449289-21latency_hist11:50:010
235911199113107,4cyclictest2385001-21kworker/u8:1+events_unbound08:35:251
23591089911393,17cyclictest2462031-21latency_hist12:30:000
235910899113107,4cyclictest2370146-21kworker/u8:3+flush-179:007:55:240
235911199112105,4cyclictest2413198-21kworker/u8:0+events_unbound10:00:231
235911199112102,6cyclictest2404177-21kworker/u8:0+flush-179:009:40:261
235910899111101,7cyclictest1213033-21systemd-journal10:45:000
23591119911099,8cyclictest2393011-21kworker/u8:0+flush-179:009:05:211
23591119911097,10cyclictest2385305-21apt-get08:30:121
23591089911098,9cyclictest2372024-21latency_hist07:50:010
235910899110101,6cyclictest2441335-21latency_hist11:25:010
23591119910993,13cyclictest2385001-21kworker/u8:1+flush-179:008:50:191
235911199109102,5cyclictest2405812-21kworker/u8:1+flush-179:010:10:261
235911199109100,7cyclictest2370146-21kworker/u8:3+events_unbound07:50:171
235911199108102,4cyclictest2355939-21kworker/u8:3+flush-179:007:30:211
235911199108100,5cyclictest2439986-21kworker/u8:1+events_unbound11:20:151
235911199107100,5cyclictest2455285-21kworker/u8:0+events_unbound12:10:171
23591119910599,4cyclictest2355939-21kworker/u8:3+events_unbound07:15:191
23591119910595,7cyclictest2422005-21kworker/u8:2+events_unbound10:30:131
23591119910499,4cyclictest2399393-21kworker/u8:3+events_unbound09:20:231
23591119910492,8cyclictest2370146-21kworker/u8:3+events_unbound08:10:151
23591119910492,8cyclictest2370146-21kworker/u8:3+events_unbound08:10:141
23591119910389,11cyclictest2399393-21kworker/u8:3+flush-179:009:34:591
23591089910391,9cyclictest1213033-21systemd-journal12:10:000
23591119910295,4cyclictest2441319-21kworker/u8:2+flush-179:011:40:211
23591119910295,4cyclictest2441319-21kworker/u8:2+flush-179:011:40:201
23591119910293,6cyclictest2370146-21kworker/u8:3+flush-179:008:00:251
23591119910194,5cyclictest2365354-21kworker/u8:0+flush-179:008:15:231
23591119910192,6cyclictest2459898-21kworker/u8:1+flush-179:012:25:211
23591119910192,6cyclictest2441319-21kworker/u8:2+events_unbound11:45:151
23591089910192,6cyclictest2365354-21kworker/u8:0+flush-179:007:30:250
23591119910094,4cyclictest2449260-21kworker/u8:0+flush-179:011:55:241
23591119910094,4cyclictest2422005-21kworker/u8:2+flush-179:010:40:011
23591089910091,6cyclictest2401016-21latency_hist09:20:010
23591089910088,8cyclictest2397808-21kworker/u8:2+flush-179:009:15:000
2359111999990,5cyclictest2438172-21kworker/u8:3+events_unbound11:30:251
2359111999989,7cyclictest2413198-21kworker/u8:0+flush-179:009:55:261
2359111999987,7cyclictest2399393-21kworker/u8:3+flush-179:009:50:201
2359111999986,9cyclictest2459898-21kworker/u8:1+events_unbound12:30:211
2359108999989,7cyclictest2438172-21kworker/u8:3+flush-179:011:35:270
2359111999888,6cyclictest2366966-21kworker/u8:2+events_unbound07:35:241
2359111999884,6cyclictest2397808-21kworker/u8:2+events_unbound09:10:201
2359111999790,5cyclictest2399393-21kworker/u8:3+flush-179:009:45:151
2359111999789,6cyclictest2386694-21kworker/u8:3+events_unbound08:45:221
2359111999789,5cyclictest2452529-21kworker/u8:3+flush-179:012:00:211
2359108999786,7cyclictest2404177-21kworker/u8:0+flush-179:009:35:220
2359111999690,4cyclictest2399393-21kworker/u8:3+flush-179:009:25:221
2359111999687,6cyclictest2365354-21kworker/u8:0+events_unbound08:20:201
2359111999686,6cyclictest2422005-21kworker/u8:2+flush-179:010:50:021
2359108999685,7cyclictest2422005-21kworker/u8:2+flush-179:010:30:000
2359108999684,9cyclictest2365354-21kworker/u8:0+flush-179:008:35:000
2359111999591,3cyclictest2422005-21kworker/u8:2+flush-179:010:40:281
2359111999388,3cyclictest2413198-21kworker/u8:0+events_unbound10:15:181
2359111999386,5cyclictest2422005-21kworker/u8:2+events_unbound11:10:001
2359111999384,6cyclictest2433379-21latency_hist11:00:011
2359108999181,7cyclictest2449260-21kworker/u8:0+flush-179:011:55:000
235910899910,89cyclictest1-21systemd09:10:000
2359111999083,5cyclictest2355939-21kworker/u8:3+events_unbound07:10:231
2359111998983,4cyclictest2405812-21kworker/u8:1+events_unbound10:20:141
2359111998777,4cyclictest2365354-21kworker/u8:0+events_unbound08:10:011
2359108998776,7cyclictest2422005-21kworker/u8:2+flush-179:010:50:010
2359111998681,4cyclictest2385001-21kworker/u8:1+flush-179:008:55:251
2359111998579,4cyclictest2393011-21kworker/u8:0+flush-179:009:15:191
2359108998578,4cyclictest1-21systemd08:19:590
2359111998374,4cyclictest2441319-21kworker/u8:2+events_unbound12:15:131
2359111998276,4cyclictest2441319-21kworker/u8:2+flush-179:012:35:141
2359111998276,4cyclictest2405812-21kworker/u8:1+flush-179:010:25:221
2359111998275,5cyclictest2355939-21kworker/u8:3+events_unbound07:25:261
2359111998267,11cyclictest2416926-21latency_hist10:10:021
2359111998267,11cyclictest2416926-21latency_hist10:10:011
2359111998267,10cyclictest2370146-21kworker/u8:3+flush-179:007:55:141
2359108998272,6cyclictest2428316-21kworker/u8:0+flush-179:011:15:000
2359108998271,8cyclictest2421970-21latency_hist10:25:000
2359108998268,10cyclictest2370179-21latency_hist07:45:010
2359111998176,4cyclictest2459898-21kworker/u8:1+events_unbound12:20:241
2359111998173,5cyclictest2441319-21kworker/u8:2+events_unbound11:25:191
2359108998173,5cyclictest2434968-21latency_hist11:05:000
2359108998171,7cyclictest2365375-21latency_hist07:30:010
2359111997972,5cyclictest2355939-21kworker/u8:3+flush-179:007:20:211
2359108997769,6cyclictest2413796-21kworker/u8:2+flush-179:010:10:000
2359108997769,6cyclictest2413796-21kworker/u8:2+flush-179:010:10:000
2359111997570,4cyclictest2428316-21kworker/u8:0+events_unbound11:00:171
2359108997567,5cyclictest2405776-21latency_hist09:35:010
2359108997564,7cyclictest2422005-21kworker/u8:2+events_unbound10:50:170
2359108997562,9cyclictest2455285-21kworker/u8:0+events_unbound12:20:140
2359111997469,3cyclictest2365354-21kworker/u8:0+events_unbound08:25:231
2359108997464,7cyclictest2355939-21kworker/u8:3+events_unbound07:15:250
2359111997266,4cyclictest2386694-21kworker/u8:3+flush-179:008:40:221
2359111997263,6cyclictest2394604-21kworker/u8:3+events_unbound09:00:161
2359111997166,4cyclictest2455285-21kworker/u8:0+flush-179:012:05:241
2359108997163,5cyclictest2442922-21latency_hist11:30:010
2359108997162,7cyclictest2388529-21apt-get08:40:120
2359111996964,4cyclictest2361253-21kworker/u8:1+events_unbound07:40:251
2359108996959,7cyclictest2441319-21kworker/u8:2+events_unbound12:35:200
2359108996863,3cyclictest2404177-21kworker/u8:0+events_unbound09:40:130
2359108996855,9cyclictest2386694-21kworker/u8:3+flush-179:008:45:200
2359108996757,7cyclictest2399393-21kworker/u8:3+flush-179:009:45:240
2359111996660,4cyclictest2441319-21kworker/u8:2+flush-179:011:50:201
2359108996660,4cyclictest2405812-21kworker/u8:1+flush-179:010:35:260
2359108996658,6cyclictest2441319-21kworker/u8:2+flush-179:012:00:200
2359108996655,8cyclictest2428316-21kworker/u8:0+flush-179:010:55:210
2359111996559,5cyclictest2370146-21kworker/u8:3+flush-179:007:45:161
2359108996556,6cyclictest2422005-21kworker/u8:2+flush-179:010:35:010
2359108996453,8cyclictest2375763-21diskstats08:00:160
2359108996257,3cyclictest2399393-21kworker/u8:3+events_unbound09:20:140
2359108996256,4cyclictest2413198-21kworker/u8:0+flush-179:009:55:270
2359108996253,7cyclictest2438394-21apt-get11:15:110
2359108996252,8cyclictest2386922-21apt-get08:35:120
2359108996151,7cyclictest1213033-21systemd-journal09:05:000
2359108996054,4cyclictest2457503-21apt-get12:15:110
2359108996051,6cyclictest2428316-21kworker/u8:0+events_unbound11:05:200
2359108996049,8cyclictest2416984-21kworker/u8:3+events_unbound10:15:230
2359108996048,8cyclictest2383437-21latency_hist08:25:010
2359111995946,9cyclictest1213033-21systemd-journal11:20:021
2359108995952,5cyclictest2413198-21kworker/u8:0+flush-179:010:00:220
2359108995949,7cyclictest2399393-21kworker/u8:3+events_unbound09:50:240
2359108995949,6cyclictest2459898-21kworker/u8:1+flush-179:012:30:210
2359108995948,9cyclictest2402855-21apt-get09:25:120
2359111995854,3cyclictest2438172-21kworker/u8:3+flush-179:011:35:241
2359112995754,2cyclictest0-21swapper/207:33:002
2359108995651,4cyclictest2365354-21kworker/u8:0+events_unbound08:05:120
2359108995550,4cyclictest2370146-21kworker/u8:3+flush-179:008:10:250
2359108995550,4cyclictest2370146-21kworker/u8:3+flush-179:008:10:250
2359108995447,4cyclictest2413198-21kworker/u8:0+events_unbound10:10:140
2359108995348,3cyclictest2355939-21kworker/u8:3+events_unbound07:15:010
2359108995347,5cyclictest2385001-21kworker/u8:1+events_unbound08:50:230
2359108995248,3cyclictest2370146-21kworker/u8:3+events_unbound07:50:190
2359108995244,4cyclictest2441319-21kworker/u8:2+events_unbound11:40:150
2359108995244,4cyclictest2441319-21kworker/u8:2+events_unbound11:40:150
2359108995243,6cyclictest2355939-21kworker/u8:3+flush-179:007:20:220
4577091490,14ptp4l441ktimers/307:10:013
2359111994944,3cyclictest2404177-21kworker/u8:0+events_unbound09:35:161
2359108994941,6cyclictest2385001-21kworker/u8:1+flush-179:008:55:140
2359108994738,7cyclictest2455285-21kworker/u8:0+flush-179:012:10:220
2359108994434,7cyclictest2361253-21kworker/u8:1+events_unbound07:40:000
235911499430,42cyclictest0-21swapper/311:00:583
2359114994139,1cyclictest0-21swapper/309:42:583
2359112994037,2cyclictest0-21swapper/209:37:002
2359112993936,2cyclictest0-21swapper/211:11:592
235911299390,36cyclictest0-21swapper/208:10:592
235911299390,36cyclictest0-21swapper/208:10:582
2359114993833,4cyclictest2438141-21turbostat11:15:003
235911499380,37cyclictest0-21swapper/307:45:593
235911299380,36cyclictest0-21swapper/207:47:592
2359114993735,1cyclictest0-21swapper/308:45:593
235911499370,35cyclictest0-21swapper/311:50:593
2359112993734,2cyclictest0-21swapper/208:44:552
235911299370,35cyclictest0-21swapper/210:29:582
2359108993730,5cyclictest2438172-21kworker/u8:3+flush-179:011:30:210
235911499360,35cyclictest0-21swapper/310:59:553
235911499360,35cyclictest0-21swapper/310:50:593
235911499360,35cyclictest0-21swapper/310:48:003
235911499360,35cyclictest0-21swapper/309:01:593
235911499360,35cyclictest0-21swapper/308:09:543
235911499360,1cyclictest0-21swapper/307:43:593
2359112993633,2cyclictest0-21swapper/211:02:592
2359112993633,2cyclictest0-21swapper/210:30:582
2359112993633,2cyclictest0-21swapper/210:09:002
2359112993633,2cyclictest0-21swapper/210:08:592
2359112993633,2cyclictest0-21swapper/208:06:002
235911299360,1cyclictest0-21swapper/211:19:592
2359114993533,1cyclictest0-21swapper/311:39:563
2359114993533,1cyclictest0-21swapper/307:15:593
235911499350,1cyclictest0-21swapper/309:12:593
2359112993532,2cyclictest0-21swapper/210:45:582
235911299350,1cyclictest0-21swapper/212:15:592
2359108993525,8cyclictest2370146-21kworker/u8:3+flush-179:008:25:170
2359114993432,1cyclictest0-21swapper/308:19:593
2359112993431,2cyclictest0-21swapper/212:06:592
2359114993331,1cyclictest0-21swapper/311:27:593
2359112993331,1cyclictest0-21swapper/210:59:582
2359112993330,2cyclictest0-21swapper/211:55:592
2359112993330,2cyclictest0-21swapper/210:52:002
2359112993330,2cyclictest0-21swapper/210:13:582
235911299330,2cyclictest0-21swapper/212:10:592
2359114993230,1cyclictest0-21swapper/307:38:593
2359114993230,1cyclictest0-21swapper/307:27:593
2359112993230,1cyclictest0-21swapper/212:04:592
2359114993130,1cyclictest0-21swapper/309:20:593
2359114993129,1cyclictest0-21swapper/312:24:553
2359114993129,1cyclictest0-21swapper/311:34:593
2359114993129,1cyclictest0-21swapper/307:31:593
235911499310,29cyclictest0-21swapper/307:20:143
2359114993028,1cyclictest0-21swapper/307:59:553
2359114993027,2cyclictest0-21swapper/310:30:123
235911499300,29cyclictest0-21swapper/308:30:583
2359112993027,2cyclictest0-21swapper/211:30:582
2359112993027,2cyclictest0-21swapper/209:05:152
2359112993027,2cyclictest0-21swapper/208:20:112
2359112993026,2cyclictest71-21kworker/2:1+events12:39:552
235911299300,29cyclictest0-21swapper/212:30:132
235911299300,28cyclictest0-21swapper/209:30:142
235911299300,28cyclictest0-21swapper/208:30:132
4577091290,7ptp4l441ktimers/312:30:003
2359114992928,1cyclictest0-21swapper/309:35:593
2359114992927,1cyclictest0-21swapper/310:25:133
2359114992926,2cyclictest0-21swapper/310:15:123
2359114992926,2cyclictest0-21swapper/308:22:003
235911499290,28cyclictest0-21swapper/310:35:133
235911499290,1cyclictest0-21swapper/310:10:023
235911499290,1cyclictest0-21swapper/308:35:143
235911499290,1cyclictest0-21swapper/308:10:133
235911499290,1cyclictest0-21swapper/308:10:133
2359112992927,1cyclictest0-21swapper/209:16:592
2359112992926,2cyclictest0-21swapper/211:45:132
2359112992926,2cyclictest0-21swapper/211:06:592
2359112992926,2cyclictest0-21swapper/209:51:002
2359112992926,2cyclictest0-21swapper/209:25:132
2359112992926,2cyclictest0-21swapper/207:35:152
235911299290,28cyclictest0-21swapper/207:26:592
235911299290,27cyclictest0-21swapper/209:55:132
235911299290,27cyclictest0-21swapper/209:45:122
235911299290,27cyclictest0-21swapper/208:55:122
235911299290,1cyclictest0-21swapper/208:00:132
4577091280,7ptp4l441ktimers/310:45:003
4577091280,7ptp4l441ktimers/307:54:553
4577091280,6ptp4l441ktimers/309:30:003
4577091280,6ptp4l441ktimers/308:45:003
2359114992826,1cyclictest0-21swapper/312:00:123
2359114992826,1cyclictest0-21swapper/309:48:003
2359114992825,2cyclictest2449297-21turbostat11:50:003
2359114992825,2cyclictest0-21swapper/311:15:133
235911499280,2cyclictest0-21swapper/309:50:133
235911499280,27cyclictest0-21swapper/311:05:593
235911499280,26cyclictest0-21swapper/312:35:123
2359112992826,1cyclictest0-21swapper/211:26:002
2359112992825,2cyclictest0-21swapper/211:40:122
2359112992825,2cyclictest0-21swapper/211:40:112
2359112992825,2cyclictest0-21swapper/211:20:132
2359112992825,2cyclictest0-21swapper/210:40:142
2359112992825,2cyclictest0-21swapper/210:00:122
2359112992825,2cyclictest0-21swapper/207:40:142
235911299280,27cyclictest0-21swapper/211:35:142
235911299280,27cyclictest0-21swapper/207:10:592
4577091270,6ptp4l441ktimers/309:19:553
4577091270,5ptp4l441ktimers/309:00:013
2359114992725,1cyclictest0-21swapper/309:56:583
2359114992725,1cyclictest0-21swapper/309:30:143
235911499270,1cyclictest0-21swapper/310:22:593
2359112992724,2cyclictest0-21swapper/212:25:002
2359112992724,2cyclictest0-21swapper/209:13:582
2359112992724,2cyclictest0-21swapper/209:00:592
2359112992724,2cyclictest0-21swapper/208:45:132
2359112992724,2cyclictest0-21swapper/207:55:592
235911299270,25cyclictest0-21swapper/207:52:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-007:15:003
4577091260,6ptp4l441ktimers/308:04:563
4577091260,5ptp4l441ktimers/312:20:013
4577091260,5ptp4l441ktimers/311:25:013
2359114992624,1cyclictest0-21swapper/312:10:593
235911499260,24cyclictest0-21swapper/308:25:593
2359112992624,1cyclictest0-21swapper/208:54:592
2359112992624,1cyclictest0-21swapper/207:23:592
2359112992623,2cyclictest0-21swapper/208:25:592
235911299260,2cyclictest0-21swapper/211:50:592
235911299260,24cyclictest0-21swapper/210:39:002
235911299260,24cyclictest0-21swapper/209:22:002
235911299260,24cyclictest0-21swapper/208:37:582
235911299260,24cyclictest0-21swapper/207:16:592
4577091250,5ptp4l441ktimers/312:34:553
4577091250,5ptp4l441ktimers/311:44:553
4577091250,5ptp4l441ktimers/311:44:553
4577091250,5ptp4l441ktimers/309:09:543
4577091250,5ptp4l441ktimers/308:54:553
4577091250,4ptp4l441ktimers/310:04:563
2359112992522,2cyclictest0-21swapper/210:19:002
235911299250,2cyclictest0-21swapper/209:40:582
4577091240,4ptp4l441ktimers/312:10:003
4577091240,4ptp4l441ktimers/311:59:563
2359114992422,1cyclictest0-21swapper/310:05:123
2359114992422,1cyclictest0-21swapper/310:05:123
2359112992220,1cyclictest0-21swapper/210:22:002
231999220,13rtkit-daemon23940-21sendmail-mta07:08:221
235910899201,15cyclictest2359113-21cat07:10:010
2359112991916,2cyclictest0-21swapper/208:18:002
235911299107,2cyclictest0-21swapper/212:30:002
23591129930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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