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2025-08-26 - 18:51
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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 792 highest latencies:
System rack1slot8.osadl.org (updated Tue Aug 26, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156429918261730,89cyclictest0-21swapper/008:05:210
156429918231749,66cyclictest0-21swapper/007:10:130
155692695676,12sleep10-21swapper/107:09:371
152452489465,17sleep00-21swapper/007:06:200
1564399428393,21cyclictest3956-21memory08:05:221
1564399320258,29cyclictest0-21swapper/107:10:121
2790421170,4sleep027905-21cat09:10:310
216899940,4rtkit-daemon2167-21rtkit-daemon10:28:021
216899890,4rtkit-daemon2167-21rtkit-daemon12:11:000
216899870,4rtkit-daemon2167-21rtkit-daemon12:30:061
216899840,4rtkit-daemon2167-21rtkit-daemon07:47:340
216899830,4rtkit-daemon2167-21rtkit-daemon10:15:471
15643998314,52cyclictest0-21swapper/111:36:581
216899820,4rtkit-daemon2167-21rtkit-daemon12:04:400
216899810,3rtkit-daemon2167-21rtkit-daemon09:04:210
216899800,4rtkit-daemon2167-21rtkit-daemon11:49:341
216899790,4rtkit-daemon2167-21rtkit-daemon11:41:351
216899790,4rtkit-daemon2167-21rtkit-daemon11:27:231
216899780,5rtkit-daemon2167-21rtkit-daemon09:35:221
216899780,4rtkit-daemon2167-21rtkit-daemon12:04:101
216899780,4rtkit-daemon2167-21rtkit-daemon10:45:271
1564299783,66cyclictest21058-21munin-node11:45:250
216899770,4rtkit-daemon2167-21rtkit-daemon11:22:441
216899770,4rtkit-daemon2167-21rtkit-daemon09:27:471
15643997713,46cyclictest0-21swapper/108:25:591
1564299772,60cyclictest32239-21latency_hist11:10:000
1564299772,59cyclictest28819-21latency_hist12:00:000
233112760,5sleep123310-21ssh09:58:281
216899750,4rtkit-daemon2167-21rtkit-daemon11:17:531
216899750,4rtkit-daemon2167-21rtkit-daemon07:25:551
15642997524,30cyclictest8250irq/14-pata_sch08:20:010
15643997414,36cyclictest0-21swapper/107:58:591
216899730,4rtkit-daemon2167-21rtkit-daemon10:06:220
216899730,3rtkit-daemon4534-21unixbench_singl10:20:281
15643997314,42cyclictest0-21swapper/110:54:591
15643997314,38cyclictest0-21swapper/107:49:591
1564299732,55cyclictest26652-21diskmemload11:27:110
290662720,4sleep129065-21ssh09:13:551
216899720,4rtkit-daemon2167-21rtkit-daemon10:12:230
216899720,4rtkit-daemon2167-21rtkit-daemon10:12:220
216899720,4rtkit-daemon11534-21ssh10:33:531
216899720,3rtkit-daemon2167-21rtkit-daemon08:12:401
15643997218,38cyclictest0-21swapper/108:43:581
15643997216,34cyclictest0-21swapper/108:55:591
1564299723,45cyclictest10179-21ssh12:22:570
1564299723,39cyclictest15252-21ksmtuned12:30:540
1564299722,6cyclictest8558-21latency_hist11:25:010
216899710,3rtkit-daemon2167-21rtkit-daemon07:30:541
1564299716,58cyclictest0-21swapper/010:15:200
1564299716,57cyclictest0-21swapper/008:10:300
1564299715,59cyclictest0-21swapper/007:43:420
1564299715,51cyclictest0-21swapper/010:40:010
1564299713,61cyclictest21986-21unixbench_singl10:50:280
1564299713,60cyclictest6072-21ssh10:25:010
1564299712,39cyclictest17986-21idleruntime-cro09:50:010
216899700,4rtkit-daemon2167-21rtkit-daemon09:55:170
216899700,3rtkit-daemon2167-21rtkit-daemon08:35:411
216899700,3rtkit-daemon2167-21rtkit-daemon08:20:501
216899700,3rtkit-daemon2167-21rtkit-daemon07:21:091
216899700,3rtkit-daemon0-21swapper/010:10:081
216899700,3rtkit-daemon0-21swapper/010:10:071
15643997013,37cyclictest0-21swapper/112:40:001
15643997013,37cyclictest0-21swapper/112:39:591
1564299705,58cyclictest0-21swapper/007:25:140
1564299704,36cyclictest2761-21idleruntime-cro11:15:000
1564299703,59cyclictest3872-21ssh09:25:180
15642997021,34cyclictest0-21swapper/010:03:580
1564299702,53cyclictest7375-21swap09:30:320
1564299702,5cyclictest10739-21ssh10:31:260
1564299702,35cyclictest13939-21ksmtuned11:33:450
15642997017,38cyclictest0-21swapper/007:25:000
216899690,4rtkit-daemon2167-21rtkit-daemon09:21:320
216899690,3rtkit-daemon2167-21rtkit-daemon08:30:451
15643996915,33cyclictest0-21swapper/108:18:001
15643996910,38cyclictest0-21swapper/112:14:591
1564299693,60cyclictest2077-21kworker/0:111:35:200
1564299693,57cyclictest23642-21munin-node10:55:130
1564299692,60cyclictest16795-21ssh12:35:130
1564299692,60cyclictest16795-21ssh12:35:120
1564299692,51cyclictest2768-21crond08:01:010
15642996914,48cyclictest78950irq/46-eth0-tx-10:49:570
216899680,3rtkit-daemon2167-21rtkit-daemon08:53:301
216899680,3rtkit-daemon2167-21rtkit-daemon07:40:341
216899680,3rtkit-daemon2167-21rtkit-daemon07:37:201
1564299685,56cyclictest11402-21gltestperf12:25:150
1564299683,38cyclictest17699-21latency_hist10:45:010
1564299683,38cyclictest13662-21ssh09:40:310
1564299683,37cyclictest6169-21munin-node12:15:240
15642996827,35cyclictest0-21swapper/012:08:400
1564299682,6cyclictest4035-21munin-node11:15:280
1564299682,59cyclictest779-21runrttasks07:55:410
1564299682,59cyclictest19958-21taskset11:44:330
15643996717,31cyclictest0-21swapper/108:50:001
15643996715,32cyclictest0-21swapper/107:51:581
1564299675,49cyclictest0-21swapper/011:04:490
1564299672,57cyclictest26649-21idleruntime-cro09:10:000
1564299672,36cyclictest12201-21crond08:30:010
15642996718,41cyclictest20725-21unixbench_singl08:50:280
216899660,3rtkit-daemon2167-21rtkit-daemon09:01:201
15643996615,34cyclictest0-21swapper/112:21:591
15643996615,34cyclictest0-21swapper/109:31:591
1564299663,56cyclictest32463-21crond09:20:000
1564299662,58cyclictest8162-21ssh10:27:280
1564299662,57cyclictest24885-21ssh11:51:550
1564299662,57cyclictest24810-21munin-node07:35:150
1564299662,57cyclictest24092-21unixbench_multi07:30:260
15642996618,33cyclictest8250irq/14-pata_sch07:20:010
15642996612,40cyclictest0-21swapper/007:53:000
15643996518,31cyclictest0-21swapper/109:20:581
15643996512,35cyclictest0-21swapper/109:54:591
1564299659,50cyclictest26652-21diskmemload09:50:430
1564299653,55cyclictest9433-21ssh09:35:130
15643996415,33cyclictest0-21swapper/109:43:581
15643996413,36cyclictest0-21swapper/111:56:581
1564299646,50cyclictest0-21swapper/008:45:210
1564299642,6cyclictest17615-21latency_hist08:45:020
15643996318,30cyclictest0-21swapper/111:31:001
15643996313,35cyclictest0-21swapper/112:26:591
15643996313,31cyclictest0-21swapper/107:16:591
1564299635,51cyclictest0-21swapper/008:30:210
1564299632,6cyclictest14667-21munin-node08:35:180
15643996210,35cyclictest0-21swapper/111:05:581
216899600,4rtkit-daemon2167-21rtkit-daemon09:18:061
15643996016,27cyclictest0-21swapper/110:42:591
15643996014,31cyclictest0-21swapper/110:01:581
1564299602,31cyclictest9378-21sort08:20:190
216899590,11rtkit-daemon0-21swapper/011:52:201
15643995914,30cyclictest0-21swapper/110:56:581
15643995914,28cyclictest0-21swapper/111:03:591
15643995913,30cyclictest0-21swapper/108:00:581
216899580,4rtkit-daemon2167-21rtkit-daemon09:05:311
15643995814,30cyclictest0-21swapper/112:17:591
15643995813,31cyclictest0-21swapper/110:08:001
1564299582,6cyclictest22904-21runrttasks08:58:480
1564399577,33cyclictest0-21swapper/110:35:581
15643995514,29cyclictest0-21swapper/111:11:591
15643995512,31cyclictest0-21swapper/112:08:581
1564399525,35cyclictest0-21swapper/109:49:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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