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2026-08-21 - 08:25
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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 100 highest latencies:
System rack1slot8.osadl.org (updated Fri Aug 21, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39212944921,16sleep00-21swapper/019:06:560
426599899821,48cyclictest0-21swapper/119:12:171
426499867791,54cyclictest0-21swapper/019:12:180
426499965,71cyclictest0-21swapper/023:26:590
426599836,18cyclictest0-21swapper/122:20:021
426599827,19cyclictest0-21swapper/121:20:011
228699820,8rtkit-daemon0-21swapper/100:05:070
426599806,17cyclictest0-21swapper/122:10:241
228699800,3rtkit-daemon2285-21rtkit-daemon23:43:350
426599776,17cyclictest0-21swapper/123:49:551
426599776,17cyclictest0-21swapper/123:17:301
426599766,18cyclictest0-21swapper/123:30:291
426599766,18cyclictest0-21swapper/123:00:571
426599766,17cyclictest0-21swapper/100:22:491
426599765,17cyclictest0-21swapper/122:08:371
426599757,17cyclictest0-21swapper/122:58:461
426599749,14cyclictest0-21swapper/121:20:191
426599746,18cyclictest0-21swapper/100:32:331
426599746,17cyclictest0-21swapper/123:35:211
426599745,17cyclictest0-21swapper/122:48:241
4265997410,17cyclictest0-21swapper/121:45:121
4264997413,44cyclictest0-21swapper/022:15:210
426599739,18cyclictest0-21swapper/123:28:451
426599738,19cyclictest0-21swapper/123:10:211
426599737,18cyclictest0-21swapper/100:04:361
426599737,16cyclictest0-21swapper/123:55:421
426599736,18cyclictest0-21swapper/121:54:231
426599735,18cyclictest0-21swapper/100:19:141
426599735,17cyclictest0-21swapper/122:32:161
426599734,10cyclictest32570-21ssh21:40:171
4265997311,17cyclictest0-21swapper/123:52:141
407827333,28sleep10-21swapper/119:08:351
426599728,21cyclictest0-21swapper/121:25:311
426599726,20cyclictest0-21swapper/122:25:081
426599726,18cyclictest0-21swapper/120:30:021
426599725,17cyclictest0-21swapper/119:15:071
426499726,59cyclictest0-21swapper/020:35:120
426499722,42cyclictest15451-21munin-node21:10:210
426599718,19cyclictest0-21swapper/122:50:251
426599718,17cyclictest0-21swapper/119:26:341
426599717,18cyclictest0-21swapper/121:31:441
426599717,18cyclictest0-21swapper/100:40:011
426599716,26cyclictest0-21swapper/121:57:441
426599716,18cyclictest0-21swapper/120:20:011
426599716,18cyclictest0-21swapper/100:11:151
426599715,26cyclictest0-21swapper/122:22:011
426599715,18cyclictest0-21swapper/100:05:561
426599712,61cyclictest4841-21df20:40:141
4264997126,37cyclictest8250irq/14-pata_sch19:30:010
426499712,40cyclictest13447-21ssh00:05:000
4264997112,53cyclictest27512-21pgrep23:30:170
426599708,19cyclictest0-21swapper/122:35:121
426599708,18cyclictest0-21swapper/122:00:231
426599706,18cyclictest0-21swapper/123:20:181
426599706,17cyclictest0-21swapper/121:35:021
426599706,17cyclictest0-21swapper/121:12:571
426599706,17cyclictest0-21swapper/120:00:021
426599706,17cyclictest0-21swapper/119:30:131
426599706,13cyclictest27873-21munin-node20:15:111
4265997022,41cyclictest23044-21munin-node20:00:191
4265997011,16cyclictest0-21swapper/100:25:141
4265997011,13cyclictest0-21swapper/123:42:481
4264997043,21cyclictest0-21swapper/019:35:250
4264997043,17cyclictest0-21swapper/023:51:230
426499702,53cyclictest20481-21crond19:55:000
426599697,20cyclictest0-21swapper/120:40:011
426599697,18cyclictest0-21swapper/120:05:131
426599697,17cyclictest0-21swapper/122:40:071
426599696,19cyclictest0-21swapper/120:55:001
426599696,18cyclictest0-21swapper/119:55:011
426599696,18cyclictest0-21swapper/119:46:351
426599696,18cyclictest0-21swapper/119:41:311
426599696,17cyclictest0-21swapper/123:05:211
426599696,17cyclictest0-21swapper/120:30:231
426599696,17cyclictest0-21swapper/119:20:201
426599696,16cyclictest0-21swapper/121:04:341
426599695,20cyclictest0-21swapper/119:36:071
426599695,19cyclictest0-21swapper/120:55:241
426499693,60cyclictest29789-21aten_r1power_po23:35:150
426499693,59cyclictest32246-21runrttasks00:39:330
426599687,17cyclictest0-21swapper/120:10:171
426599685,19cyclictest0-21swapper/121:10:011
426499685,48cyclictest0-21swapper/021:36:070
426499682,36cyclictest27710-21latency_hist20:15:020
426599676,17cyclictest0-21swapper/120:45:141
4264996741,20cyclictest0-21swapper/023:46:350
426499673,47cyclictest1320-21nscd22:20:160
228699670,14rtkit-daemon2285-21rtkit-daemon20:44:220
4264996644,16cyclictest0-21swapper/021:30:180
426499664,56cyclictest0-21swapper/022:35:020
426499662,57cyclictest1568-21runrttasks21:40:190
426499662,57cyclictest11609-21sendmail_mailqu23:00:250
4264996614,46cyclictest24569-21df_inode20:05:150
4264996533,26cyclictest0-21swapper/020:48:590
426499653,56cyclictest26547-21sh22:29:530
426499652,57cyclictest7291-21ssh21:53:400
426499652,56cyclictest11025-21sort22:00:170
426499652,37cyclictest10716-21ssh00:00:010
4264996516,43cyclictest88850irq/46-eth0-tx-00:18:300
426499643,32cyclictest29520-21munin-run20:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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