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2026-03-25 - 22:38
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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 Wed Mar 25, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
332107499112100,9cyclictest3377492-21latency_hist10:05:000
33210809910797,7cyclictest3353343-21kworker/u8:1+flush-179:008:50:011
3321074999590,4cyclictest2672539-21kworker/u8:4+flush-179:007:10:240
3321074999486,6cyclictest3387528-21/usr/sbin/munin10:35:220
3321074999388,4cyclictest2672539-21kworker/u8:4+events_unbound07:55:230
3321074998983,5cyclictest3347029-21kworker/u8:0+events_unbound09:10:230
3321074998881,5cyclictest3414712-21kworker/u8:1+events_unbound12:10:250
3321074998879,4cyclictest3401984-21kworker/u8:3+events_unbound11:20:200
3321074998681,4cyclictest3419458-21kworker/u8:3+events_unbound12:20:230
3321074998580,4cyclictest3384161-21kworker/u8:1+events_unbound10:50:220
3321074998575,3cyclictest3361344-21kworker/u8:2+flush-179:009:25:210
3321074998480,3cyclictest3335902-21kworker/u8:2+flush-179:008:10:240
3321074998475,4cyclictest3375951-21kworker/u8:0+events_unbound10:25:250
3321074998436,46cyclictest3403501-21kworker/u8:4+events_unbound12:00:000
3321080998273,7cyclictest3424441-21/usr/sbin/munin12:30:231
3321074998272,4cyclictest3329186-21kworker/u8:0+events_unbound07:50:230
3321074998176,4cyclictest3303351-21kworker/u8:1+events_unbound07:25:190
3321074998176,4cyclictest3303351-21kworker/u8:1+events_unbound07:25:190
3321074998172,4cyclictest3403501-21kworker/u8:4+events_unbound12:00:240
3321074998172,4cyclictest3384161-21kworker/u8:1+events_unbound10:40:250
3321074998076,3cyclictest3361344-21kworker/u8:2+flush-179:009:30:280
3321074998069,9cyclictest266-21systemd-journal07:30:020
3321080997974,4cyclictest2672539-21kworker/u8:4+events_unbound07:49:571
3321074997975,3cyclictest3343861-21kworker/u8:3+events_unbound08:20:250
3321074997975,3cyclictest3343861-21kworker/u8:3+events_unbound08:20:250
3321074997772,4cyclictest3401984-21kworker/u8:3+events_unbound11:30:200
3321074997772,4cyclictest3347029-21kworker/u8:0+events_unbound08:55:220
3321074997772,4cyclictest3329186-21kworker/u8:0+events_unbound07:38:010
3321074997672,3cyclictest3393687-21kworker/u8:0+events_unbound10:55:190
3321074997671,4cyclictest3343782-21kworker/u8:2+events_unbound08:40:230
3321074997667,4cyclictest3414712-21kworker/u8:1+events_unbound12:05:240
3321074997571,3cyclictest3369244-21kworker/u8:1+flush-179:009:40:190
3321074997570,3cyclictest3380383-21kworker/u8:2+events_unbound10:10:220
3321074997469,4cyclictest3393687-21kworker/u8:0+flush-179:011:10:200
3321074997464,4cyclictest3343782-21kworker/u8:2+flush-179:008:35:210
3321080997368,4cyclictest3353395-21kworker/u8:3+events_unbound09:19:551
3321080997364,7cyclictest3421030-21latency_hist12:20:001
3321080997364,7cyclictest266-21systemd-journal08:40:001
3321080997362,8cyclictest266-21systemd-journal09:10:011
3321074997368,3cyclictest3321025-21kworker/u8:0+flush-179:007:15:220
3321080997268,3cyclictest3411509-21kworker/u8:2+events_unbound12:09:561
3321080997268,3cyclictest3393687-21kworker/u8:0+events_unbound11:00:151
3321080997268,3cyclictest3393687-21kworker/u8:0+events_unbound10:56:281
3321080997167,3cyclictest3369244-21kworker/u8:1+events_unbound10:09:551
3321074997167,3cyclictest3403501-21kworker/u8:4+events_unbound11:25:210
3321074997167,3cyclictest3403501-21kworker/u8:4+events_unbound11:25:210
3321080997066,3cyclictest3343861-21kworker/u8:3+events_unbound08:29:561
3321080997059,9cyclictest3327380-21apt-get07:30:031
3321074997065,4cyclictest3393687-21kworker/u8:0+flush-179:011:45:260
3321074997065,4cyclictest3347029-21kworker/u8:0+events_unbound09:05:220
3321074996965,3cyclictest3369447-21kworker/u8:3+flush-179:009:59:550
3321074996962,5cyclictest3347251-21apt-get08:30:110
3321080996864,3cyclictest3329186-21kworker/u8:0+flush-179:007:50:261
3321074996863,4cyclictest3343782-21kworker/u8:2+events_unbound08:25:180
3321074996862,4cyclictest3329186-21kworker/u8:0+flush-179:008:00:180
3321080996760,5cyclictest3416254-21latency_hist12:05:021
3321080996757,8cyclictest3364762-21apt-get09:25:111
3321080996757,7cyclictest3408292-21latency_hist11:40:011
3321074996763,3cyclictest3384161-21kworker/u8:1+events_unbound10:45:190
3321074996757,3cyclictest3361344-21kworker/u8:2+flush-179:009:20:250
3321074996757,3cyclictest3343782-21kworker/u8:2+events_unbound08:45:220
3321074996661,4cyclictest3369447-21kworker/u8:3+events_unbound09:49:560
3321074996658,4cyclictest3403501-21kworker/u8:4+events_unbound11:50:160
3321074996560,4cyclictest3422652-21kworker/u8:1+events_unbound12:35:250
3321074996560,4cyclictest3340415-21kworker/u8:1+flush-179:008:05:270
3321080996460,3cyclictest3321025-21kworker/u8:0+events_unbound07:16:291
3321074996459,4cyclictest3393687-21kworker/u8:0+events_unbound11:40:240
3321074996456,6cyclictest3332434-21apt-get07:45:000
3321074996359,3cyclictest3380972-21kworker/u8:3+events_unbound10:20:230
3321074996355,6cyclictest3354947-21latency_hist08:55:010
3321080996257,4cyclictest3343782-21kworker/u8:2+events_unbound08:42:271
3321074996257,4cyclictest3364742-21kworker/u8:0+events_unbound09:35:150
3321074996254,7cyclictest3342197-21kworker/u8:1+flush-179:008:15:220
3321074996252,8cyclictest3400584-21apt-get11:15:110
3321080996157,3cyclictest3393687-21kworker/u8:0+events_unbound11:23:281
3321080996157,3cyclictest3353395-21kworker/u8:3+events_unbound09:14:291
3321080996157,3cyclictest3303351-21kworker/u8:1+events_unbound07:23:401
3321080996156,4cyclictest3369244-21kworker/u8:1+events_unbound09:38:281
3321074996157,3cyclictest3393687-21kworker/u8:0+flush-179:011:00:220
3321074996152,7cyclictest3329186-21kworker/u8:0+events_unbound07:45:020
3321080996056,3cyclictest3400305-21kworker/u8:2+events_unbound11:18:281
3321080996055,4cyclictest3324222-21kworker/u8:2+events_unbound07:29:291
3321080996055,4cyclictest3324222-21kworker/u8:2+events_unbound07:29:291
3321080996051,7cyclictest510-21rs:main1
3321074996056,3cyclictest3380972-21kworker/u8:3+events_unbound10:30:190
3321074995954,4cyclictest3369244-21kworker/u8:1+flush-179:009:50:270
3321074995952,5cyclictest3393687-21kworker/u8:0+flush-179:011:40:000
3321080995854,3cyclictest3419458-21kworker/u8:3+events_unbound12:20:131
3321080995854,3cyclictest3387325-21kworker/u8:2+events_unbound10:39:121
3321080995851,5cyclictest3372715-21latency_hist09:50:021
3321074995853,4cyclictest3419458-21kworker/u8:3+events_unbound12:35:000
3321074995853,4cyclictest3411509-21kworker/u8:2+events_unbound12:15:130
3321074995853,4cyclictest3393687-21kworker/u8:0+flush-179:011:09:540
3321080995752,4cyclictest3395777-21kworker/u8:1+events_unbound11:11:291
3321080995752,4cyclictest3393687-21kworker/u8:0+events_unbound11:43:281
3321080995652,3cyclictest3343782-21kworker/u8:2+events_unbound08:52:291
3321080995652,3cyclictest3343782-21kworker/u8:2+events_unbound08:22:281
3321080995652,3cyclictest3343782-21kworker/u8:2+events_unbound08:22:281
3321080995648,6cyclictest3411712-21/usr/sbin/munin11:50:231
3321074995645,9cyclictest266-21systemd-journal10:05:020
3321080995551,3cyclictest3369447-21kworker/u8:3+events_unbound09:58:271
3321080995450,3cyclictest3403501-21kworker/u8:4+events_unbound11:59:231
3321080995344,7cyclictest510-21rs:main1
3321080995335,7cyclictest3405349-21/usr/sbin/munin11:30:221
3321074995344,7cyclictest266-21systemd-journal12:30:010
3321080995248,3cyclictest3419404-21kworker/u8:0+flush-179:012:14:281
3321080995248,3cyclictest3393687-21kworker/u8:0+events_unbound11:25:041
3321080995248,3cyclictest3393687-21kworker/u8:0+events_unbound11:25:031
3321080995248,3cyclictest3390721-21kworker/u8:3+events_unbound10:47:291
3321080995248,3cyclictest3380972-21kworker/u8:3+events_unbound10:27:271
3321080995248,3cyclictest3343782-21kworker/u8:2+events_unbound08:34:281
3321080995247,4cyclictest3321025-21kworker/u8:0+events_unbound07:14:281
3321080994944,4cyclictest3387325-21kworker/u8:2+events_unbound10:44:281
3321074994945,3cyclictest3347029-21kworker/u8:0+flush-179:009:00:270
3321080994844,3cyclictest3384161-21kworker/u8:1+events_unbound10:30:031
3321080994843,3cyclictest3329186-21kworker/u8:0+events_unbound08:15:091
4577091470,13ptp4l61490irq/134-eno1-TxRx-007:10:013
3321080994743,3cyclictest3347029-21kworker/u8:0+events_unbound08:58:301
3321074994742,4cyclictest3375951-21kworker/u8:0+events_unbound10:19:070
3321074994742,4cyclictest3361286-21kworker/u8:1+flush-179:009:15:270
3321080994642,3cyclictest3393687-21kworker/u8:0+events_unbound11:49:011
3321074994637,3cyclictest3324222-21kworker/u8:2+events_unbound07:20:170
3321080994439,4cyclictest3375951-21kworker/u8:0+events_unbound10:15:101
332108299430,41cyclictest0-21swapper/210:25:592
3321080994339,3cyclictest3361344-21kworker/u8:2+events_unbound09:20:081
3321080994338,4cyclictest3356810-21apt-get09:00:111
3321080994337,5cyclictest3380972-21kworker/u8:3+flush-179:010:20:241
332108499410,40cyclictest0-21swapper/310:29:563
3321080994137,3cyclictest3369244-21kworker/u8:1+events_unbound09:51:561
3321080994135,4cyclictest3329186-21kworker/u8:0+events_unbound08:15:001
3321084994038,1cyclictest0-21swapper/311:42:593
3321082994037,2cyclictest0-21swapper/208:08:582
3321080994036,3cyclictest3387325-21kworker/u8:2+events_unbound10:51:031
3321080994036,3cyclictest3335902-21kworker/u8:2+events_unbound08:06:571
3321080994036,3cyclictest3329186-21kworker/u8:0+events_unbound07:57:281
3321080994036,3cyclictest2672539-21kworker/u8:4+events_unbound07:43:421
3321084993932,5cyclictest3340651-21turbostat08:10:003
332108499390,4cyclictest3400336-21turbostat11:19:553
3321080993935,3cyclictest3375951-21kworker/u8:0+events_unbound10:10:411
3321080993935,3cyclictest2672539-21kworker/u8:4+flush-179:008:00:211
3321080993933,5cyclictest3361344-21kworker/u8:2+flush-179:009:30:231
332108099390,38cyclictest0-21swapper/112:36:591
332108499380,4cyclictest3335870-21turbostat07:55:013
3321082993835,2cyclictest0-21swapper/211:30:002
3321082993835,2cyclictest0-21swapper/211:29:592
332108299380,36cyclictest0-21swapper/210:36:582
3321080993826,10cyclictest3422855-21/usr/sbin/munin12:25:171
3321084993731,5cyclictest3413074-21turbostat11:55:003
332108499370,36cyclictest0-21swapper/308:17:593
3321082993734,2cyclictest0-21swapper/210:33:592
3321082993734,2cyclictest0-21swapper/209:10:582
3321082993733,2cyclictest0-21swapper/207:16:592
332108299370,35cyclictest0-21swapper/209:20:002
332108299370,35cyclictest0-21swapper/208:33:002
3321080993732,4cyclictest3395777-21kworker/u8:1+events_unbound11:05:341
332108099370,1cyclictest0-21swapper/110:02:001
3321084993634,1cyclictest0-21swapper/311:38:593
3321084993634,1cyclictest0-21swapper/311:13:593
3321084993634,1cyclictest0-21swapper/311:09:593
3321084993634,1cyclictest0-21swapper/309:55:583
3321082993633,2cyclictest0-21swapper/209:39:592
3321082993633,2cyclictest0-21swapper/207:49:592
3321082993628,7cyclictest0-21swapper/208:50:002
332108299360,1cyclictest0-21swapper/211:09:002
332108299360,1cyclictest0-21swapper/208:04:552
332108499350,1cyclictest0-21swapper/311:30:593
3321082993532,2cyclictest0-21swapper/212:10:002
3321082993532,2cyclictest0-21swapper/208:29:592
332108299350,1cyclictest0-21swapper/210:46:002
3321084993428,5cyclictest3377501-21turbostat10:05:003
3321082993432,1cyclictest0-21swapper/211:04:582
3321082993431,2cyclictest0-21swapper/212:17:592
3321082993431,2cyclictest0-21swapper/211:34:592
3321082993431,2cyclictest0-21swapper/211:12:592
3321082993431,2cyclictest0-21swapper/210:05:582
3321082993431,2cyclictest0-21swapper/209:24:552
3321082993431,2cyclictest0-21swapper/208:14:592
3321082993431,2cyclictest0-21swapper/207:23:592
3321084993331,1cyclictest0-21swapper/310:24:593
3321084993331,1cyclictest0-21swapper/309:12:593
3321084993329,3cyclictest3397112-21turbostat11:05:003
3321084993328,4cyclictest3427394-21turbostat12:40:003
3321084993327,5cyclictest3411489-21turbostat11:50:003
3321082993330,2cyclictest0-21swapper/209:59:002
3321082993326,6cyclictest0-21swapper/209:40:032
3321082993230,1cyclictest0-21swapper/211:24:592
3321082993229,2cyclictest0-21swapper/211:41:592
3321082993226,5cyclictest0-21swapper/212:10:132
3321082993226,5cyclictest0-21swapper/212:00:122
3321084993129,1cyclictest0-21swapper/310:32:583
3321084993126,4cyclictest3393660-21turbostat10:55:003
3321084993126,4cyclictest3339062-21turbostat08:05:003
332108499310,30cyclictest0-21swapper/307:39:593
332108499310,1cyclictest0-21swapper/310:37:593
3321082993129,1cyclictest0-21swapper/208:20:002
3321082993125,5cyclictest0-21swapper/212:20:132
3321084993025,4cyclictest3372728-21turbostat09:50:013
332108499300,28cyclictest0-21swapper/309:00:133
332108499300,28cyclictest0-21swapper/308:45:133
3321082993027,2cyclictest0-21swapper/211:59:552
3321082993027,2cyclictest0-21swapper/208:39:542
332108299300,29cyclictest0-21swapper/209:45:122
332108299300,28cyclictest0-21swapper/208:55:112
332108299300,1cyclictest0-21swapper/211:54:592
3321084992927,1cyclictest0-21swapper/310:44:003
3321084992927,1cyclictest0-21swapper/308:30:123
3321084992927,1cyclictest0-21swapper/307:30:033
3321084992926,2cyclictest0-21swapper/311:20:123
3321084992923,5cyclictest3322585-21turbostat07:15:013
332108499290,28cyclictest3425807-21turbostat12:35:003
332108499290,27cyclictest0-21swapper/312:25:143
332108499290,27cyclictest0-21swapper/309:40:013
332108499290,1cyclictest0-21swapper/310:10:133
3321082992921,7cyclictest0-21swapper/208:53:592
332108299290,28cyclictest0-21swapper/207:30:122
332108299290,27cyclictest0-21swapper/211:45:132
332108299290,27cyclictest0-21swapper/210:00:122
332108299290,27cyclictest0-21swapper/209:30:132
332108299290,21cyclictest0-21swapper/207:25:122
332108299290,21cyclictest0-21swapper/207:25:122
4577091280,7ptp4l441ktimers/309:35:013
3321084992825,2cyclictest0-21swapper/310:45:123
3321084992825,2cyclictest0-21swapper/310:15:133
3321084992823,4cyclictest3342224-21turbostat08:15:003
332108499280,4cyclictest3379344-21turbostat10:10:013
332108499280,2cyclictest0-21swapper/309:40:003
332108499280,26cyclictest0-21swapper/311:55:123
332108499280,26cyclictest0-21swapper/309:15:133
332108499280,26cyclictest0-21swapper/307:45:023
332108499280,1cyclictest0-21swapper/307:40:123
3321082992825,2cyclictest0-21swapper/212:25:592
3321082992825,2cyclictest0-21swapper/209:53:592
3321082992820,6cyclictest0-21swapper/207:52:592
332108299280,2cyclictest0-21swapper/210:40:122
332108299280,26cyclictest0-21swapper/209:05:132
231999280,9rtkit-daemon908065-21snmpd07:09:360
4577091270,6ptp4l61490irq/134-eno1-TxRx-011:00:003
4577091270,6ptp4l441ktimers/309:10:003
4577091270,6ptp4l441ktimers/308:45:013
3321084992725,1cyclictest0-21swapper/312:18:593
3321084992725,1cyclictest0-21swapper/308:20:143
3321084992725,1cyclictest0-21swapper/308:20:143
332108499270,26cyclictest0-21swapper/307:20:143
4577091260,6ptp4l61490irq/134-eno1-TxRx-008:55:003
4577091260,6ptp4l61490irq/134-eno1-TxRx-008:40:013
4577091260,6ptp4l441ktimers/312:05:003
4577091260,5ptp4l441ktimers/307:20:003
3321084992624,1cyclictest0-21swapper/309:51:593
332108499260,24cyclictest0-21swapper/312:10:133
3321082992624,1cyclictest0-21swapper/210:59:592
3321082992620,5cyclictest0-21swapper/212:39:592
332108299260,2cyclictest0-21swapper/211:18:582
332108299260,24cyclictest0-21swapper/209:02:002
4577091250,6ptp4l441ktimers/308:00:003
3321084992523,1cyclictest3347006-21turbostat08:30:003
332108499250,24cyclictest0-21swapper/312:05:593
3321082992522,2cyclictest0-21swapper/207:14:552
332108099255,5cyclictest281ktimers/107:10:021
4577091240,5ptp4l61490irq/134-eno1-TxRx-009:29:553
3321084992422,1cyclictest0-21swapper/308:55:593
3321082992421,2cyclictest0-21swapper/210:11:002
4577091230,5ptp4l61490irq/134-eno1-TxRx-009:25:003
4577091230,4ptp4l61490irq/134-eno1-TxRx-012:24:553
3321082992320,2cyclictest0-21swapper/208:21:002
3321082992320,2cyclictest0-21swapper/208:21:002
3321082992315,7cyclictest0-21swapper/212:31:592
4577091220,4ptp4l61490irq/134-eno1-TxRx-011:29:553
4577091220,4ptp4l61490irq/134-eno1-TxRx-011:29:553
3321082992220,1cyclictest0-21swapper/208:40:132
3321082992219,2cyclictest0-21swapper/207:42:592
3321082992017,2cyclictest0-21swapper/209:25:592
3321082992017,1cyclictest0-21swapper/211:36:592
3321082991715,1cyclictest0-21swapper/210:50:132
3321082991715,1cyclictest0-21swapper/207:35:592
4577091160,3ptp4l441ktimers/307:25:233
4577091160,3ptp4l441ktimers/307:25:233
3321082991610,5cyclictest0-21swapper/210:18:592
332108299120,2cyclictest3337460-21turbostat08:00:002
332108299119,1cyclictest0-21swapper/210:24:552
33210829980,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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