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2026-05-23 - 23:44
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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 rack1slot8.osadl.org (updated Sat May 23, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2182999924809,84cyclictest24290-21iostat07:15:171
215502792771,13sleep10-21swapper/107:07:311
2182899782723,49cyclictest0-21swapper/011:12:120
2182999752692,44cyclictest0-21swapper/111:12:131
21828991337,93cyclictest0-21swapper/007:15:170
228699860,13rtkit-daemon0-21swapper/011:18:251
21828998454,23cyclictest0-21swapper/011:16:500
149922810,11sleep00-21swapper/011:35:120
149922810,11sleep00-21swapper/011:35:120
2116627730,31sleep00-21swapper/007:05:230
228699760,13rtkit-daemon0-21swapper/012:08:410
228699740,4rtkit-daemon2285-21rtkit-daemon09:15:171
228699680,4rtkit-daemon2285-21rtkit-daemon10:02:280
2182999686,47cyclictest0-21swapper/107:42:591
2182999685,39cyclictest0-21swapper/107:54:591
21828996840,23cyclictest0-21swapper/010:54:350
21828996824,39cyclictest7401-21ssh09:23:180
2182999676,39cyclictest0-21swapper/110:08:001
21828996717,27cyclictest6071-21ssh12:15:320
289272660,3sleep128926-21df_abs11:00:141
119212660,3sleep111920-21ssh12:26:351
21828996539,21cyclictest0-21swapper/009:01:500
21828996532,7cyclictest18485-21ssh12:40:000
21828996532,27cyclictest0-21swapper/011:24:350
2182999646,37cyclictest0-21swapper/107:34:001
21828996441,17cyclictest0-21swapper/011:40:170
21828996437,23cyclictest0-21swapper/011:00:140
21828996426,32cyclictest10705-21ssh12:25:150
228699630,3rtkit-daemon31722-21diskmemload12:09:121
2182999635,51cyclictest0-21swapper/108:48:591
21828996343,16cyclictest0-21swapper/011:48:340
21828996333,23cyclictest0-21swapper/010:11:030
21828996331,26cyclictest0-21swapper/010:09:200
21828996326,15cyclictest11379-21ssh10:28:310
21828996324,34cyclictest20906-21ssh09:46:420
21828996323,16cyclictest30207-21ssh12:01:040
35922624,12sleep10-21swapper/110:15:021
2182899626,50cyclictest0-21swapper/010:45:300
21828996241,16cyclictest0-21swapper/011:25:420
21828996241,16cyclictest0-21swapper/011:25:420
21828996239,18cyclictest0-21swapper/010:39:070
21828996237,20cyclictest0-21swapper/008:22:230
21828996230,9cyclictest2832-21munin-run07:50:000
21828996230,27cyclictest0-21swapper/010:55:190
21828996227,17cyclictest2667-21ssh12:10:170
21828996224,16cyclictest8828-21ssh12:20:300
21828996217,39cyclictest0-21swapper/008:30:220
228699610,3rtkit-daemon24404-21ssh09:54:081
2182999618,36cyclictest0-21swapper/108:57:591
2182999616,33cyclictest0-21swapper/112:21:581
2182999615,38cyclictest0-21swapper/107:46:591
2182999615,37cyclictest0-21swapper/108:53:001
2182999615,35cyclictest0-21swapper/108:06:591
2182999614,36cyclictest0-21swapper/110:21:591
21828996133,23cyclictest0-21swapper/009:50:270
21828996129,28cyclictest6270-21kworker/0:111:05:260
21828996127,28cyclictest23737-21latency_hist07:15:020
21828996126,8cyclictest26912-21ssh11:55:240
21828996123,14cyclictest19027-21ssh10:41:190
287392604,12sleep10-21swapper/112:00:041
2182999604,33cyclictest0-21swapper/108:01:001
21828996036,18cyclictest13712-21ssh10:32:010
21828996036,18cyclictest13712-21ssh10:32:010
21828996030,11cyclictest15715-21munin-run12:35:000
21828996028,25cyclictest2941-21ssh09:15:180
21828996027,28cyclictest4158-21ssh10:15:180
21828996027,28cyclictest11561-21latency09:30:190
21828996026,10cyclictest25283-21ssh11:53:100
21828996021,16cyclictest28242-21processes07:25:240
21828996020,16cyclictest29579-21gltestperf07:30:160
2182999594,32cyclictest0-21swapper/107:57:591
21828995936,18cyclictest0-21swapper/010:21:110
21828995924,9cyclictest21827-21cyclictest09:15:000
21828995919,34cyclictest26517-21rm09:56:530
21828995919,22cyclictest8409-21munin-node08:05:250
21828995918,36cyclictest21554-21irqstats08:40:190
2182999585,34cyclictest0-21swapper/110:49:591
2182999585,33cyclictest0-21swapper/107:27:591
21828995837,16cyclictest0-21swapper/009:26:030
21828995827,26cyclictest88850irq/46-eth0-tx-09:36:180
21828995818,34cyclictest13919-21ssh11:32:110
21828995818,34cyclictest13919-21ssh11:32:110
132272584,12sleep10-21swapper/109:33:511
2182999575,36cyclictest0-21swapper/110:59:001
2182999575,35cyclictest0-21swapper/109:55:591
2182999575,34cyclictest0-21swapper/108:39:001
21828995737,16cyclictest0-21swapper/008:45:170
21828995726,26cyclictest88850irq/46-eth0-tx-09:42:150
196102575,15sleep10-21swapper/111:42:431
153332574,12sleep10-21swapper/112:33:441
101782574,20sleep10-21swapper/109:28:031
2182999565,34cyclictest0-21swapper/111:26:591
2182999565,34cyclictest0-21swapper/111:26:591
2182999565,34cyclictest0-21swapper/108:41:591
2182999565,33cyclictest0-21swapper/108:31:591
2182999565,32cyclictest0-21swapper/109:20:591
2182999564,36cyclictest0-21swapper/107:22:591
2182999564,33cyclictest0-21swapper/107:38:591
21828995636,15cyclictest444-21runrttasks07:41:000
21828995618,19cyclictest0-21swapper/008:02:010
190812566,16sleep10-21swapper/110:41:311
140652564,11sleep10-21swapper/111:32:421
140652564,11sleep10-21swapper/111:32:421
128332565,14sleep10-21swapper/110:30:251
128332565,14sleep10-21swapper/110:30:251
10092564,12sleep10-21swapper/109:11:391
228699550,4rtkit-daemon2285-21rtkit-daemon07:51:570
2182999555,36cyclictest0-21swapper/111:23:001
2182999555,34cyclictest0-21swapper/109:07:001
2182999555,31cyclictest0-21swapper/111:08:591
21828995523,27cyclictest16011-21head08:25:160
21828995523,26cyclictest26446-21munin-node08:55:220
21828995523,25cyclictest1568-21runrttasks08:35:320
23302544,12sleep10-21swapper/110:11:081
223082544,12sleep10-21swapper/111:47:291
2182999545,30cyclictest0-21swapper/110:02:001
21828995437,10cyclictest26028-21ls07:20:180
21828995435,15cyclictest0-21swapper/007:55:550
21828995434,15cyclictest0-21swapper/008:50:220
21828995431,17cyclictest0-21swapper/008:15:260
21828995410,34cyclictest0-21swapper/007:35:550
159402544,11sleep10-21swapper/111:35:261
159402544,11sleep10-21swapper/111:35:261
69882534,12sleep10-21swapper/112:18:421
253932536,7sleep123347-21kworker/1:111:53:351
2182999537,32cyclictest0-21swapper/110:51:591
2182999534,32cyclictest0-21swapper/107:13:001
273282524,12sleep10-21swapper/111:55:461
2182999525,37cyclictest0-21swapper/112:36:591
2182999525,31cyclictest0-21swapper/108:23:591
2182999525,30cyclictest0-21swapper/108:27:001
2182999524,31cyclictest0-21swapper/112:12:591
21828995237,10cyclictest30066-21munin-node09:05:230
2182999515,32cyclictest0-21swapper/108:17:591
21828995123,22cyclictest10733-21iostat08:10:200
106542514,12sleep10-21swapper/110:26:041
2182999505,27cyclictest0-21swapper/109:05:001
2182999494,30cyclictest0-21swapper/108:11:591
164792494,12sleep10-21swapper/110:37:041
2182999485,31cyclictest0-21swapper/109:44:591
2182999484,29cyclictest0-21swapper/109:47:591
150212474,12sleep10-21swapper/109:35:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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