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2025-10-18 - 01:20
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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 Fri Oct 17, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1701821020995,18sleep10-21swapper/107:09:111
169872923900,16sleep00-21swapper/007:08:510
1713799868793,43cyclictest0-21swapper/107:10:061
1713699854777,47cyclictest0-21swapper/007:10:060
17136995224,13cyclictest0-21swapper/008:20:310
1713699765,9cyclictest0-21swapper/010:10:010
1713699765,64cyclictest0-21swapper/010:58:050
17137997511,17cyclictest0-21swapper/111:28:471
1713799737,16cyclictest0-21swapper/109:10:181
1713799735,17cyclictest0-21swapper/109:20:441
1713799725,26cyclictest0-21swapper/110:01:381
1713699724,9cyclictest0-21swapper/011:16:330
1713699722,62cyclictest0-21swapper/011:20:140
1713799717,19cyclictest0-21swapper/111:36:381
1713799716,17cyclictest0-21swapper/112:19:261
17137997117,13cyclictest0-21swapper/110:59:431
1713699712,9cyclictest14323-21ssh12:25:200
1713799707,20cyclictest0-21swapper/111:05:551
17137997021,11cyclictest1945-21Xorg10:54:581
17137997017,14cyclictest0-21swapper/111:42:091
17137997016,14cyclictest0-21swapper/110:19:531
17137997011,19cyclictest0-21swapper/112:20:231
1713699704,59cyclictest0-21swapper/011:27:570
1713699702,51cyclictest8817-21ssh10:25:220
1713799698,18cyclictest0-21swapper/109:30:131
1713799698,15cyclictest0-21swapper/109:40:151
1713799697,19cyclictest0-21swapper/110:35:021
1713799697,18cyclictest0-21swapper/110:10:551
1713799697,15cyclictest0-21swapper/110:20:161
1713799696,17cyclictest0-21swapper/109:28:491
1713799696,10cyclictest31814-21munin-node12:00:161
1713699695,9cyclictest0-21swapper/012:34:290
1713699695,9cyclictest0-21swapper/012:34:280
1713699692,49cyclictest47-21kswapd010:00:110
1713799688,17cyclictest0-21swapper/111:00:131
1713799686,19cyclictest0-21swapper/110:43:301
1713799686,18cyclictest0-21swapper/109:17:591
1713799686,17cyclictest0-21swapper/111:59:311
1713799686,16cyclictest0-21swapper/112:31:311
1713799686,16cyclictest0-21swapper/112:31:311
1713799686,16cyclictest0-21swapper/109:00:231
1713799685,17cyclictest0-21swapper/111:30:121
1713799685,14cyclictest0-21swapper/109:59:551
1713799685,12cyclictest23264-21irqstats11:45:191
17137996823,6cyclictest26562-21rm11:50:261
17137996815,13cyclictest0-21swapper/110:05:201
1713699687,5cyclictest0-21swapper/009:16:340
1713699686,5cyclictest0-21swapper/009:56:270
1713699685,9cyclictest0-21swapper/011:50:150
1713699685,57cyclictest0-21swapper/009:25:280
17136996829,26cyclictest8250irq/14-pata_sch11:05:010
17136996812,49cyclictest0-21swapper/010:35:250
1713799677,17cyclictest0-21swapper/108:30:021
1713799676,19cyclictest0-21swapper/112:35:211
1713799676,18cyclictest0-21swapper/112:06:091
1713799676,18cyclictest0-21swapper/111:21:071
1713799676,18cyclictest0-21swapper/109:45:141
1713799675,24cyclictest0-21swapper/110:26:021
1713799675,18cyclictest0-21swapper/110:32:091
1713799675,18cyclictest0-21swapper/107:40:021
1713799675,17cyclictest0-21swapper/107:50:181
1713799675,16cyclictest0-21swapper/112:29:261
17137996719,7cyclictest0-21swapper/108:35:141
17137996714,13cyclictest0-21swapper/109:51:281
1713699675,55cyclictest0-21swapper/008:35:010
1713699675,47cyclictest0-21swapper/012:15:170
1713699673,7cyclictest2724-21memory09:20:200
1713799665,17cyclictest0-21swapper/109:00:011
1713799665,17cyclictest0-21swapper/108:45:231
17137996615,8cyclictest78850irq/45-eth0-rx-11:15:151
17137996611,13cyclictest0-21swapper/108:15:271
17137996610,13cyclictest0-21swapper/110:48:231
1713699665,9cyclictest0-21swapper/012:23:220
1713699665,51cyclictest0-21swapper/008:05:250
1713699662,7cyclictest22801-21latency_hist09:55:010
1713699662,58cyclictest12483-21ssh10:31:030
1713699662,57cyclictest16229-21ssh09:42:440
17136996615,45cyclictest78950irq/46-eth0-tx-11:30:230
1713799659,17cyclictest0-21swapper/107:55:141
1713799658,19cyclictest0-21swapper/111:10:241
1713799657,20cyclictest0-21swapper/109:35:191
1713799657,18cyclictest0-21swapper/112:10:171
1713799657,17cyclictest0-21swapper/108:50:201
1713799657,17cyclictest0-21swapper/107:45:211
1713799656,17cyclictest0-21swapper/108:05:011
17137996517,14cyclictest0-21swapper/108:40:161
17137996517,13cyclictest0-21swapper/108:24:051
17137996517,13cyclictest0-21swapper/108:05:271
17137996511,16cyclictest0-21swapper/107:15:131
1713699655,9cyclictest0-21swapper/012:10:210
1713699655,9cyclictest0-21swapper/011:40:210
1713699655,9cyclictest0-21swapper/010:10:210
1713699655,8cyclictest0-21swapper/008:40:210
1713699655,53cyclictest0-21swapper/010:45:550
17136996513,45cyclictest1430-21ssh12:03:270
1713799646,18cyclictest0-21swapper/109:05:181
1713799646,17cyclictest0-21swapper/107:44:211
17137996412,16cyclictest0-21swapper/107:30:011
17137996412,16cyclictest0-21swapper/107:30:001
1713699644,53cyclictest0-21swapper/009:10:260
17136996429,17cyclictest0-21swapper/009:05:010
17136996422,36cyclictest78950irq/46-eth0-tx-10:23:120
1713699642,6cyclictest32166-21irqstats11:05:210
17136996419,39cyclictest78950irq/46-eth0-tx-10:15:180
17136996417,28cyclictest0-21swapper/011:55:080
1713799637,19cyclictest0-21swapper/107:20:121
1713799636,16cyclictest0-21swapper/108:30:181
1713699635,9cyclictest0-21swapper/012:35:200
1713699635,9cyclictest0-21swapper/010:54:470
1713699635,9cyclictest0-21swapper/010:40:140
1713699635,10cyclictest0-21swapper/009:35:080
17136996331,26cyclictest0-21swapper/011:13:030
17136996320,37cyclictest78950irq/46-eth0-tx-09:30:150
17136996320,37cyclictest78950irq/46-eth0-tx-08:04:240
1713699632,7cyclictest22878-21munin-node08:55:200
17136996311,5cyclictest0-21swapper/012:08:040
17136996310,47cyclictest17385-21idleruntime11:35:200
1713799627,17cyclictest0-21swapper/108:10:141
1713799626,16cyclictest0-21swapper/107:30:201
1713699626,49cyclictest0-21swapper/011:50:020
1713699625,9cyclictest0-21swapper/007:46:390
1713699625,13cyclictest0-21swapper/007:35:130
1713699624,8cyclictest0-21swapper/008:45:110
17136996224,32cyclictest0-21swapper/007:15:270
1713699622,8cyclictest24800-21df_inode07:30:150
1713699622,5cyclictest17413-21df09:45:140
1713699605,9cyclictest0-21swapper/008:15:260
1713699597,6cyclictest0-21swapper/007:20:350
1713699595,47cyclictest0-21swapper/007:40:140
1713699594,14cyclictest0-21swapper/008:35:120
1713699588,44cyclictest6717-21aten_r1power_fr08:10:130
1713699585,47cyclictest21742-21strings08:50:220
1713699585,10cyclictest0-21swapper/007:55:230
1713699584,15cyclictest0-21swapper/009:05:120
1713699575,9cyclictest0-21swapper/007:25:170
1713699575,9cyclictest0-21swapper/007:25:160
1713699575,10cyclictest0-21swapper/007:50:180
1713699572,7cyclictest12050-21munin-node08:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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