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2026-08-23 - 01:09
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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 Sat Aug 22, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
250942899157148,5cyclictest2586956-21kworker/u8:2+flush-179:011:15:010
250942999143133,7cyclictest2545796-21kworker/u8:0+flush-179:009:05:251
250942999141131,7cyclictest2538359-21latency_hist08:40:011
250942999138121,14cyclictest2552725-21kworker/u8:3+flush-179:009:40:011
250942999137131,4cyclictest2565727-21kworker/u8:4+events_unbound10:15:011
250942999137127,8cyclictest2573886-21kworker/u8:0+events_unbound10:45:001
250942999137126,8cyclictest2522171-21latency_hist07:50:011
250942999137126,8cyclictest2522171-21latency_hist07:50:011
250942999129119,7cyclictest2585067-21apt-get11:04:591
250942999125116,6cyclictest2548145-21kworker/u8:1+events_unbound09:44:591
250942999125113,10cyclictest2506279-21kworker/u8:2+flush-179:007:20:211
250942999125113,10cyclictest2506279-21kworker/u8:2+flush-179:007:20:211
250942899124113,8cyclictest2590106-21latency_hist11:20:020
250942899124113,8cyclictest2590106-21latency_hist11:20:010
250942999122111,8cyclictest2537287-21kworker/u8:1+flush-179:008:45:191
250942899122114,5cyclictest2581662-21kworker/u8:3+events_unbound11:05:010
250942899121114,4cyclictest2560362-21kworker/u8:2+events_unbound09:55:010
250942899120111,6cyclictest2548145-21kworker/u8:1+flush-179:009:30:240
250942899120110,8cyclictest2514759-21kworker/u8:0+events_unbound07:35:000
250942999118111,5cyclictest2573886-21kworker/u8:0+events_unbound10:50:161
250942999117104,11cyclictest2603646-21kworker/u8:3+flush-179:012:35:241
250942899116106,8cyclictest2532234-21/usr/sbin/munin08:20:230
250942999115109,4cyclictest2586956-21kworker/u8:2+events_unbound11:15:151
250942999115109,4cyclictest2586956-21kworker/u8:2+events_unbound11:15:151
250942999114106,6cyclictest2514759-21kworker/u8:0+flush-179:007:45:001
250942899114108,4cyclictest2548145-21kworker/u8:1+events_unbound09:10:240
250942999113106,4cyclictest2560362-21kworker/u8:2+events_unbound09:50:011
250942999113103,7cyclictest2543126-21latency_hist08:55:011
250942899113107,4cyclictest2555858-21kworker/u8:0+events_unbound09:40:260
250942899113106,5cyclictest2591725-21kworker/u8:1+events_unbound11:30:010
250942899113106,5cyclictest2569100-21kworker/u8:1+events_unbound10:20:220
250942899113106,4cyclictest2506279-21kworker/u8:2+events_unbound07:15:010
250942899112102,8cyclictest2560362-21kworker/u8:2+flush-179:010:00:010
250942999111100,8cyclictest2549751-21apt-get09:15:121
250942999111100,8cyclictest2549751-21apt-get09:15:121
25094299911099,8cyclictest2530139-21apt-get08:15:001
250942999110104,4cyclictest2599890-21kworker/u8:0+events_unbound11:55:251
25094289911098,9cyclictest2609481-21latency_hist12:20:020
250942899110103,5cyclictest2506279-21kworker/u8:2+flush-179:007:35:230
25094299910998,7cyclictest2560362-21kworker/u8:2+flush-179:009:55:241
250942999109103,4cyclictest2555858-21kworker/u8:0+flush-179:010:00:211
250942999109100,7cyclictest2573886-21kworker/u8:0+flush-179:010:40:011
25094289910999,7cyclictest2581662-21kworker/u8:3+events_unbound11:00:000
250942899109101,5cyclictest2523758-21latency_hist07:55:010
250942999108100,6cyclictest2569100-21kworker/u8:1+events_unbound10:25:261
250942999108100,6cyclictest2569100-21kworker/u8:1+events_unbound10:25:251
250942899108102,4cyclictest2535148-21kworker/u8:0+events_unbound08:35:010
250942899108102,4cyclictest2535148-21kworker/u8:0+events_unbound08:35:010
250942899108100,6cyclictest2514759-21kworker/u8:0+flush-179:007:55:150
250942899108100,5cyclictest2570435-21kworker/u8:2+flush-179:010:35:210
25094299910695,5cyclictest2591725-21kworker/u8:1+events_unbound11:25:261
250942899106100,4cyclictest2506279-21kworker/u8:2+events_unbound08:05:010
25094299910599,4cyclictest2591725-21kworker/u8:1+events_unbound11:30:261
25094289910599,4cyclictest2603646-21kworker/u8:3+flush-179:012:10:250
25094289910597,5cyclictest2506279-21kworker/u8:2+events_unbound08:15:130
25094299910496,5cyclictest2545796-21kworker/u8:0+events_unbound09:00:231
25094289910498,4cyclictest2506279-21kworker/u8:2+flush-179:008:55:170
25094289910497,5cyclictest2537287-21kworker/u8:1+flush-179:008:45:210
25094299910397,4cyclictest2594323-21kworker/u8:0+flush-179:011:35:171
25094299910394,7cyclictest2514759-21kworker/u8:0+flush-179:008:00:001
25094289910396,5cyclictest2603646-21kworker/u8:3+flush-179:012:25:190
25094289910396,5cyclictest2603646-21kworker/u8:3+flush-179:012:25:180
25094289910396,5cyclictest2603646-21kworker/u8:3+flush-179:012:00:210
25094299910293,6cyclictest2578687-21apt-get10:45:121
25094289910293,6cyclictest2599908-21latency_hist11:50:000
25094299910195,4cyclictest2506279-21kworker/u8:2+flush-179:008:34:561
25094299910195,4cyclictest2506279-21kworker/u8:2+flush-179:008:34:561
25094289910191,6cyclictest2537287-21kworker/u8:1+flush-179:008:40:200
25094299910092,5cyclictest2514759-21kworker/u8:0+flush-179:008:05:161
25094299910087,4cyclictest2569100-21kworker/u8:1+events_unbound10:20:001
25094289910093,5cyclictest2506279-21kworker/u8:2+flush-179:009:05:170
25094289910092,5cyclictest2565727-21kworker/u8:4+flush-179:010:15:230
25094289910091,7cyclictest2514759-21kworker/u8:0+events_unbound08:05:230
2509429999992,5cyclictest2606266-21kworker/u8:0+flush-179:012:15:011
2509428999993,5cyclictest2594851-21kworker/u8:3+flush-179:011:39:550
2509428999991,4cyclictest2503052-21kworker/u8:3+flush-179:007:15:160
2509429999891,5cyclictest2597666-21kworker/u8:1+flush-179:011:45:191
2509428999889,7cyclictest2506279-21kworker/u8:2+events_unbound07:25:130
2509429999791,5cyclictest2565727-21kworker/u8:4+flush-179:010:05:261
2509429999790,5cyclictest2514759-21kworker/u8:0+events_unbound07:25:241
2509429999788,6cyclictest2555858-21kworker/u8:0+flush-179:009:50:211
2509429999787,7cyclictest2606266-21kworker/u8:0+flush-179:012:20:251
2509429999781,5cyclictest2586956-21kworker/u8:2+events_unbound11:25:001
2509429999690,4cyclictest2503052-21kworker/u8:3+flush-179:007:20:011
2509429999488,4cyclictest2514759-21kworker/u8:0+flush-179:008:00:221
2509429999486,5cyclictest2548145-21kworker/u8:1+events_unbound09:20:151
2509428999485,6cyclictest2591725-21kworker/u8:1+events_unbound11:30:160
2509429999386,5cyclictest2597666-21kworker/u8:1+flush-179:011:45:001
2509428999386,5cyclictest2548145-21kworker/u8:1+flush-179:009:25:240
2509429999286,5cyclictest2606266-21kworker/u8:0+flush-179:012:15:251
2509429999285,5cyclictest2545796-21kworker/u8:0+flush-179:009:15:001
2509429999283,6cyclictest2573886-21kworker/u8:0+flush-179:010:30:191
2509428999285,5cyclictest2560362-21kworker/u8:2+flush-179:010:05:000
2509428999186,4cyclictest2597666-21kworker/u8:1+flush-179:011:54:550
2509428999185,4cyclictest2603646-21kworker/u8:3+flush-179:012:05:240
2509428999184,5cyclictest2573886-21kworker/u8:0+flush-179:010:45:170
2509428999180,8cyclictest2594851-21kworker/u8:3+events_unbound11:40:040
2509429999084,5cyclictest2609511-21kworker/u8:2+flush-179:012:30:261
2509428999081,7cyclictest2609511-21kworker/u8:2+events_unbound12:30:250
2509429998983,4cyclictest2548145-21kworker/u8:1+flush-179:009:34:551
2509428998982,4cyclictest2506279-21kworker/u8:2+flush-179:008:50:160
2509429998883,4cyclictest2530642-21kworker/u8:1+flush-179:008:25:271
2509428998881,4cyclictest2585043-21kworker/u8:0+flush-179:011:05:200
2509429998780,5cyclictest2581662-21kworker/u8:3+events_unbound11:10:011
2509428998781,4cyclictest2514759-21kworker/u8:0+events_unbound08:10:230
2509428998780,5cyclictest2567532-21apt-get10:10:110
2509428998579,4cyclictest2548145-21kworker/u8:1+events_unbound09:15:240
2509428998579,4cyclictest2548145-21kworker/u8:1+events_unbound09:15:240
2509429998478,5cyclictest2537287-21kworker/u8:1+flush-179:008:40:211
2509428998477,5cyclictest2506279-21kworker/u8:2+events_unbound08:30:010
2509429998374,7cyclictest2506279-21kworker/u8:2+events_unbound09:00:011
2509429998374,6cyclictest2506279-21kworker/u8:2+events_unbound08:15:191
2509429998372,8cyclictest2506279-21kworker/u8:2+events_unbound07:30:221
2509428998377,4cyclictest2506279-21kworker/u8:2+flush-179:009:04:560
2509428998375,6cyclictest2536995-21/usr/sbin/munin08:35:180
2509428998277,3cyclictest191rcuc/012:20:240
2509428998276,4cyclictest2555858-21kworker/u8:0+flush-179:010:05:160
2509428998275,4cyclictest2599890-21kworker/u8:0+flush-179:011:55:210
2509429998174,4cyclictest2581662-21kworker/u8:3+events_unbound11:10:131
2509429998172,6cyclictest2506279-21kworker/u8:2+flush-179:007:35:271
2509428998174,5cyclictest2506279-21kworker/u8:2+events_unbound07:45:140
2509428998174,5cyclictest2506279-21kworker/u8:2+events_unbound07:45:130
2509428998073,5cyclictest2551769-21kworker/u8:2+flush-179:009:25:010
2509429997872,4cyclictest2548145-21kworker/u8:1+flush-179:009:25:251
2509428997874,3cyclictest2586956-21kworker/u8:2+flush-179:011:20:250
2509429997770,4cyclictest2506279-21kworker/u8:2+flush-179:007:10:151
2509428997671,3cyclictest2570435-21kworker/u8:2+flush-179:010:30:260
2509428997670,4cyclictest2573886-21kworker/u8:0+events_unbound10:50:250
2509429997569,4cyclictest2599890-21kworker/u8:0+flush-179:011:50:161
2509428997568,4cyclictest2603646-21kworker/u8:3+events_unbound12:35:250
2509429997265,5cyclictest2530642-21kworker/u8:1+events_unbound08:20:141
2509429996963,4cyclictest2514759-21kworker/u8:0+flush-179:007:50:141
2509429996863,4cyclictest2603646-21kworker/u8:3+events_unbound12:05:251
2509428996657,7cyclictest2572603-21diskstats10:25:170
2509428996657,7cyclictest2572603-21diskstats10:25:170
2509429996458,5cyclictest2603646-21kworker/u8:3+events_unbound12:00:261
2509428996457,5cyclictest2555858-21kworker/u8:0+events_unbound09:35:180
2509428996457,5cyclictest2548145-21kworker/u8:1+events_unbound09:45:200
2509429996257,4cyclictest2609511-21kworker/u8:2+events_unbound12:26:581
2509429996257,4cyclictest2609511-21kworker/u8:2+events_unbound12:26:571
2509428996257,3cyclictest2506279-21kworker/u8:2+events_unbound07:20:220
2509428996257,3cyclictest2506279-21kworker/u8:2+events_unbound07:20:210
2509428996154,5cyclictest2570435-21kworker/u8:2+flush-179:010:40:210
2509429996053,4cyclictest2569100-21kworker/u8:1+flush-179:010:20:161
2509428996050,7cyclictest2509315-21latency_hist07:10:020
2509429995853,4cyclictest2573886-21kworker/u8:0+events_unbound10:55:201
2509435994947,1cyclictest0-21swapper/309:25:003
2509428994944,4cyclictest2506279-21kworker/u8:2+flush-179:007:40:150
2509435994741,5cyclictest2612660-21turbostat12:30:013
2509435994741,5cyclictest2612660-21turbostat12:30:003
4577091460,11ptp4l441ktimers/307:09:573
2509435994440,2cyclictest0-21swapper/311:30:003
250943599440,2cyclictest0-21swapper/307:19:593
250943499430,41cyclictest0-21swapper/207:55:592
250943599420,40cyclictest2535186-21turbostat08:30:003
250943599420,39cyclictest0-21swapper/307:55:593
250943599410,39cyclictest2578437-21turbostat10:45:013
2509434994139,1cyclictest0-21swapper/211:29:592
250943499410,2cyclictest0-21swapper/207:19:592
250943599400,38cyclictest2614241-21turbostat12:35:003
2509434994036,2cyclictest0-21swapper/209:47:592
250943499400,36cyclictest0-21swapper/208:17:592
2509435993936,2cyclictest0-21swapper/309:47:583
250943599390,38cyclictest0-21swapper/308:31:593
250943599390,38cyclictest0-21swapper/308:31:593
250943599390,37cyclictest0-21swapper/308:08:593
250943599390,37cyclictest0-21swapper/307:23:593
250943599390,37cyclictest0-21swapper/307:23:583
250943499390,36cyclictest0-21swapper/208:38:582
250943499390,36cyclictest0-21swapper/208:31:592
250943499390,36cyclictest0-21swapper/208:31:592
250943499390,36cyclictest0-21swapper/208:08:592
250943499390,35cyclictest0-21swapper/211:10:002
2509435993832,5cyclictest2598335-21turbostat11:45:013
250943599380,37cyclictest0-21swapper/310:04:593
250943599380,37cyclictest0-21swapper/308:38:593
250943599380,1cyclictest0-21swapper/309:05:593
2509434993835,2cyclictest0-21swapper/210:54:592
2509434993835,2cyclictest0-21swapper/208:27:592
2509434993834,2cyclictest0-21swapper/212:05:592
250943499380,30cyclictest0-21swapper/207:23:582
250943499380,30cyclictest0-21swapper/207:23:582
250943499380,2cyclictest0-21swapper/212:03:582
2509435993735,1cyclictest0-21swapper/312:05:583
2509435993734,2cyclictest0-21swapper/310:54:593
250943599370,2cyclictest0-21swapper/308:17:593
2509434993734,2cyclictest0-21swapper/208:52:592
2509434993733,2cyclictest0-21swapper/210:24:562
2509434993733,2cyclictest0-21swapper/210:13:592
250943499370,35cyclictest0-21swapper/210:04:592
2509435993634,1cyclictest0-21swapper/310:24:553
2509435993634,1cyclictest0-21swapper/308:52:593
2509435993633,2cyclictest0-21swapper/310:14:003
2509435993629,5cyclictest2549510-21turbostat09:15:003
250943599360,1cyclictest0-21swapper/311:09:593
2509434993633,2cyclictest0-21swapper/207:35:592
250943499360,2cyclictest0-21swapper/209:05:592
2509435993533,1cyclictest0-21swapper/310:07:583
2509435993533,1cyclictest0-21swapper/307:35:593
250943599350,1cyclictest0-21swapper/312:03:593
2509434993532,2cyclictest0-21swapper/212:10:592
2509434993532,2cyclictest0-21swapper/211:47:592
2509434993532,2cyclictest0-21swapper/210:07:592
2509434993531,3cyclictest0-21swapper/208:00:592
2509435993432,1cyclictest0-21swapper/311:47:583
2509435993432,1cyclictest0-21swapper/308:00:593
2509434993432,1cyclictest0-21swapper/211:45:002
2509434993430,2cyclictest0-21swapper/211:21:582
250943499340,31cyclictest0-21swapper/208:56:002
2509435993331,1cyclictest0-21swapper/312:10:593
2509434993329,2cyclictest0-21swapper/209:15:002
4577091320,5ptp4l61490irq/134-eno1-TxRx-010:34:593
2509435993230,1cyclictest0-21swapper/311:21:583
2509435993228,3cyclictest0-21swapper/307:48:003
2509435993228,3cyclictest0-21swapper/307:47:593
250943599320,2cyclictest0-21swapper/310:59:003
2509435993128,2cyclictest0-21swapper/309:39:003
2509435993125,5cyclictest2576838-21turbostat10:39:593
250943599310,30cyclictest0-21swapper/308:56:003
2509434993128,2cyclictest0-21swapper/212:28:592
2509434993128,2cyclictest0-21swapper/212:28:592
2509434993128,2cyclictest0-21swapper/210:49:592
2509434993128,2cyclictest0-21swapper/210:39:542
2509434993128,2cyclictest0-21swapper/209:54:592
2509434993127,2cyclictest0-21swapper/209:38:592
2509435993028,1cyclictest0-21swapper/310:49:583
2509435993026,3cyclictest0-21swapper/309:02:593
250943599300,28cyclictest0-21swapper/309:50:123
250943599300,27cyclictest0-21swapper/311:55:133
2509434993027,2cyclictest0-21swapper/210:55:132
2509434993027,2cyclictest0-21swapper/209:02:592
2509434993026,2cyclictest0-21swapper/209:15:142
2509434993026,2cyclictest0-21swapper/209:15:142
250943499300,2cyclictest0-21swapper/209:55:142
250943499300,28cyclictest0-21swapper/211:55:132
250943499300,27cyclictest0-21swapper/208:44:592
250943499300,21cyclictest0-21swapper/212:35:132
250943499300,21cyclictest0-21swapper/207:40:142
4577091290,3ptp4l431rcuc/311:19:563
4577091290,3ptp4l431rcuc/311:19:553
2509435992926,2cyclictest0-21swapper/312:20:133
250943599290,28cyclictest0-21swapper/311:10:123
250943599290,27cyclictest0-21swapper/309:55:143
250943599290,27cyclictest0-21swapper/307:50:133
2509434992927,1cyclictest0-21swapper/207:47:592
2509434992927,1cyclictest0-21swapper/207:47:592
2509434992926,2cyclictest0-21swapper/210:41:592
2509434992926,2cyclictest0-21swapper/210:30:152
250943499290,28cyclictest0-21swapper/207:50:142
250943499290,27cyclictest0-21swapper/212:15:592
250943499290,27cyclictest0-21swapper/211:35:132
250943499290,27cyclictest0-21swapper/211:10:112
2509435992825,2cyclictest0-21swapper/308:22:593
2509435992825,2cyclictest0-21swapper/307:40:143
250943599280,26cyclictest0-21swapper/311:35:133
2509434992824,2cyclictest0-21swapper/212:20:142
250943499280,27cyclictest0-21swapper/209:20:592
250943499280,26cyclictest0-21swapper/211:54:592
250943499280,26cyclictest0-21swapper/210:30:002
250943499280,26cyclictest0-21swapper/210:29:592
4577091270,6ptp4l441ktimers/311:05:013
4577091270,5ptp4l441ktimers/307:30:003
2509435992725,1cyclictest0-21swapper/309:15:143
2509435992725,1cyclictest0-21swapper/309:15:143
2509435992724,2cyclictest0-21swapper/312:16:003
2509435992723,2cyclictest0-21swapper/310:16:593
250943599270,26cyclictest0-21swapper/308:44:593
250943599270,26cyclictest0-21swapper/307:32:593
250943599270,1cyclictest0-21swapper/312:35:133
2509434992724,2cyclictest0-21swapper/208:22:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-009:35:003
4577091260,5ptp4l61490irq/134-eno1-TxRx-009:30:003
4577091260,5ptp4l441ktimers/311:55:003
4577091260,5ptp4l441ktimers/309:45:003
4577091260,4ptp4l441ktimers/311:34:553
4577091260,4ptp4l441ktimers/307:15:013
2509435992623,2cyclictest0-21swapper/308:13:593
2509434992623,2cyclictest0-21swapper/208:13:592
2509434992622,2cyclictest0-21swapper/210:16:592
2509434992622,2cyclictest0-21swapper/209:33:592
250943499260,24cyclictest0-21swapper/207:32:592
4577091250,6ptp4l61490irq/134-eno1-TxRx-008:49:563
2509435992523,1cyclictest0-21swapper/310:30:003
2509435992523,1cyclictest0-21swapper/310:30:003
2509434992521,2cyclictest0-21swapper/211:01:592
2509434992421,2cyclictest0-21swapper/211:32:592
2509434992219,2cyclictest0-21swapper/209:27:002
2509434992219,2cyclictest0-21swapper/208:45:592
2509429992215,5cyclictest2509574-21cut07:10:011
2509434992017,2cyclictest0-21swapper/207:25:592
2509434991815,2cyclictest0-21swapper/211:15:152
2509434991815,2cyclictest0-21swapper/211:15:142
2509434991713,2cyclictest0-21swapper/207:12:002
2509434991612,2cyclictest0-21swapper/209:42:002
2509434991310,2cyclictest0-21swapper/212:31:002
25094349940,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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