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2025-10-21 - 14:52
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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 Tue Oct 21, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147222722696,18sleep00-21swapper/007:08:080
146112469450,13sleep10-21swapper/107:07:011
1494699405336,44cyclictest0-21swapper/007:10:190
1494799390320,37cyclictest0-21swapper/107:10:201
1494699370304,55cyclictest41ktimersoftd/009:14:270
216899880,4rtkit-daemon2167-21rtkit-daemon09:41:001
216899880,4rtkit-daemon2167-21rtkit-daemon09:41:001
14946998411,26cyclictest0-21swapper/011:00:580
1494699817,30cyclictest0-21swapper/009:33:380
14946998027,8cyclictest78950irq/46-eth0-tx-12:30:220
90212790,9sleep041ktimersoftd/009:35:150
14946997914,57cyclictest29507-21unixbench-2d12:00:290
1494799784,18cyclictest0-21swapper/109:50:001
14946997826,8cyclictest78950irq/46-eth0-tx-10:30:170
14946997727,43cyclictest78950irq/46-eth0-tx-10:50:140
14946997725,8cyclictest78950irq/46-eth0-tx-11:52:480
14946997725,8cyclictest78950irq/46-eth0-tx-11:52:470
14946997721,16cyclictest0-21swapper/012:08:400
14946997720,49cyclictest8250irq/14-pata_sch11:15:000
247752760,4sleep00-21swapper/010:00:290
1494699766,16cyclictest0-21swapper/009:40:250
1494699766,16cyclictest0-21swapper/009:40:240
1494699766,15cyclictest0-21swapper/010:47:260
1494699765,29cyclictest0-21swapper/010:09:040
1494699765,27cyclictest0-21swapper/011:27:570
14946997627,7cyclictest78950irq/46-eth0-tx-11:15:160
14946997622,15cyclictest0-21swapper/011:41:160
14946997620,15cyclictest0-21swapper/009:58:190
1494699755,29cyclictest0-21swapper/010:39:270
1494699755,16cyclictest0-21swapper/011:40:020
1494699753,64cyclictest16930-21munin-node12:35:260
14946997523,16cyclictest0-21swapper/008:33:460
14946997520,17cyclictest0-21swapper/010:15:350
1494699746,58cyclictest0-21swapper/010:55:100
1494699745,29cyclictest0-21swapper/012:22:050
14946997427,8cyclictest8250irq/14-pata_sch07:40:000
14946997427,8cyclictest78950irq/46-eth0-tx-11:30:240
14946997426,6cyclictest78950irq/46-eth0-tx-11:20:150
14946997419,16cyclictest0-21swapper/010:14:480
14946997419,16cyclictest0-21swapper/009:48:150
14946997410,25cyclictest0-21swapper/009:27:520
1494699735,29cyclictest0-21swapper/010:27:580
14946997324,11cyclictest18537-21ssh09:50:220
14946997315,17cyclictest0-21swapper/011:49:160
1494799725,16cyclictest0-21swapper/110:57:211
1494699726,60cyclictest0-21swapper/012:28:500
1494699726,31cyclictest0-21swapper/010:40:120
1494699726,25cyclictest0-21swapper/011:09:040
14946997222,13cyclictest0-21swapper/010:20:170
14946997219,16cyclictest0-21swapper/009:15:030
14946997218,16cyclictest0-21swapper/012:11:560
14946997217,16cyclictest0-21swapper/012:15:060
1494799715,16cyclictest0-21swapper/109:55:591
1494799715,15cyclictest0-21swapper/111:20:191
1494799715,15cyclictest0-21swapper/109:16:491
1494799715,14cyclictest0-21swapper/110:27:131
1494699715,28cyclictest0-21swapper/009:21:080
14946997123,16cyclictest0-21swapper/008:55:230
14946997121,10cyclictest26477-21ssh11:55:230
14946997120,17cyclictest0-21swapper/008:20:130
1494799705,27cyclictest0-21swapper/111:52:301
1494799705,27cyclictest0-21swapper/111:52:301
1494799705,16cyclictest0-21swapper/111:39:061
1494799705,15cyclictest0-21swapper/111:18:411
1494699707,28cyclictest0-21swapper/007:30:230
1494699706,24cyclictest0-21swapper/008:40:010
14946997024,14cyclictest0-21swapper/008:26:160
14946997021,18cyclictest0-21swapper/007:45:250
14946997021,18cyclictest0-21swapper/007:45:250
1494799695,14cyclictest0-21swapper/112:24:391
1494699697,30cyclictest0-21swapper/007:41:390
14946996919,15cyclictest0-21swapper/008:15:240
1494799685,16cyclictest0-21swapper/109:11:311
1494799685,16cyclictest0-21swapper/107:55:161
1494799685,15cyclictest0-21swapper/111:12:491
1494799685,15cyclictest0-21swapper/109:25:311
1494799685,14cyclictest0-21swapper/111:42:401
1494699686,32cyclictest0-21swapper/007:20:180
1494699686,18cyclictest0-21swapper/008:50:190
14946996823,15cyclictest0-21swapper/008:10:270
1494799676,15cyclictest0-21swapper/111:30:451
1494799675,18cyclictest0-21swapper/109:20:221
1494799675,14cyclictest0-21swapper/111:05:431
1494799675,14cyclictest0-21swapper/110:36:381
1494799675,13cyclictest0-21swapper/112:34:201
1494799674,16cyclictest0-21swapper/111:00:041
1494699674,32cyclictest0-21swapper/008:00:130
14946996723,15cyclictest0-21swapper/008:05:100
14946996720,17cyclictest0-21swapper/008:40:140
14946996718,14cyclictest0-21swapper/008:45:120
14946996715,19cyclictest0-21swapper/007:15:170
1494799665,16cyclictest0-21swapper/111:47:271
1494799665,15cyclictest0-21swapper/108:15:241
1494799665,14cyclictest0-21swapper/108:30:211
1494799665,13cyclictest0-21swapper/111:29:431
1494799664,13cyclictest0-21swapper/110:00:131
1494699668,13cyclictest0-21swapper/007:26:450
1494699666,53cyclictest0-21swapper/009:05:140
14946996622,16cyclictest0-21swapper/009:00:270
136112660,3chrt13612-21hostname08:35:141
1494799655,54cyclictest0-21swapper/112:10:331
1494799655,16cyclictest0-21swapper/109:05:171
1494799655,15cyclictest0-21swapper/112:29:411
1494799655,15cyclictest0-21swapper/110:41:381
1494799655,15cyclictest0-21swapper/110:23:511
1494799655,15cyclictest0-21swapper/108:10:241
1494799655,14cyclictest0-21swapper/110:10:131
1494799655,14cyclictest0-21swapper/109:53:221
1494799655,13cyclictest0-21swapper/108:48:341
1494699656,25cyclictest0-21swapper/007:50:160
14946996534,24cyclictest0-21swapper/008:00:010
1494799646,16cyclictest0-21swapper/110:08:071
1494799646,15cyclictest0-21swapper/108:20:141
1494799645,15cyclictest0-21swapper/112:38:521
1494799645,15cyclictest0-21swapper/112:19:401
1494799645,15cyclictest0-21swapper/110:30:031
1494799645,15cyclictest0-21swapper/109:30:211
1494799645,15cyclictest0-21swapper/107:24:161
1494799645,14cyclictest0-21swapper/110:54:001
1494799645,13cyclictest0-21swapper/110:49:471
1494799635,17cyclictest0-21swapper/111:57:461
1494799635,15cyclictest0-21swapper/112:07:351
1494799635,15cyclictest0-21swapper/109:00:201
1494799635,15cyclictest0-21swapper/108:55:141
1494799635,14cyclictest0-21swapper/108:08:141
1494799635,14cyclictest0-21swapper/107:15:221
1494799635,12cyclictest0-21swapper/109:36:331
1494799625,17cyclictest0-21swapper/108:30:021
1494799625,15cyclictest0-21swapper/110:15:161
1494799625,15cyclictest0-21swapper/108:43:521
1494799625,15cyclictest0-21swapper/108:05:001
1494799625,15cyclictest0-21swapper/107:50:141
1494799625,15cyclictest0-21swapper/107:25:251
1494799625,14cyclictest0-21swapper/112:02:031
1494799615,14cyclictest0-21swapper/107:49:301
1494799615,14cyclictest0-21swapper/107:49:291
14947996110,11cyclictest0-21swapper/107:43:201
1494799605,16cyclictest0-21swapper/107:33:181
1494799605,15cyclictest0-21swapper/107:35:271
1494799605,14cyclictest0-21swapper/108:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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