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2026-06-21 - 01:56
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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 Sun Jun 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67282569545,16sleep00-21swapper/019:08:570
686999470415,28cyclictest0-21swapper/119:10:181
686899450392,18cyclictest7532-21irqstats19:10:180
686999397318,48cyclictest0-21swapper/120:14:421
686899371293,51cyclictest0-21swapper/020:14:420
64792336316,12sleep10-21swapper/119:06:251
686999822,8cyclictest7477-21timerandwakeup22:45:251
109102800,3chrt10908-21ls23:50:201
686999735,15cyclictest0-21swapper/123:12:011
686999734,9cyclictest8048-21latency_hist21:50:011
686999734,10cyclictest22112-21munin-node22:15:221
686899732,65cyclictest18957-21sendmail_mailqu21:10:240
686999725,9cyclictest0-21swapper/123:40:361
686999723,8cyclictest28246-21seq23:24:011
6868997220,46cyclictest0-21swapper/021:22:020
6868997220,46cyclictest0-21swapper/021:22:020
686999715,13cyclictest0-21swapper/121:21:521
686999715,13cyclictest0-21swapper/121:21:521
686999715,10cyclictest0-21swapper/122:33:011
686999713,7cyclictest30365-21munin-node00:25:181
6868997149,15cyclictest0-21swapper/000:18:550
6868997111,52cyclictest0-21swapper/022:11:170
686999707,55cyclictest0-21swapper/100:30:241
686999706,10cyclictest0-21swapper/121:18:531
686999705,15cyclictest0-21swapper/123:27:001
686999696,13cyclictest0-21swapper/121:28:041
686999696,10cyclictest0-21swapper/122:42:211
6869996921,42cyclictest88750irq/45-eth0-rx-19:20:171
6868996947,16cyclictest0-21swapper/023:08:400
6868996947,16cyclictest0-21swapper/000:00:210
6868996942,21cyclictest0-21swapper/021:36:340
686899693,60cyclictest18947-21grep00:05:140
686899692,42cyclictest8013-21ssh21:50:010
686999686,11cyclictest0-21swapper/121:30:021
686999685,15cyclictest0-21swapper/120:09:221
686999685,14cyclictest0-21swapper/122:51:471
686999684,14cyclictest0-21swapper/123:08:371
686999684,10cyclictest18685-21munin-node00:05:131
686999684,10cyclictest13098-21munin-node23:55:101
686999683,58cyclictest19919-21df_abs19:45:131
686999683,11cyclictest25158-21df_abs22:20:151
686999682,9cyclictest13711-21unixbench_multi20:55:251
6868996847,16cyclictest0-21swapper/023:59:410
6868996839,23cyclictest0-21swapper/023:10:140
228699680,5rtkit-daemon2285-21rtkit-daemon00:39:120
686999676,9cyclictest0-21swapper/121:53:541
686999675,13cyclictest2455-21munin-run21:40:001
686999675,13cyclictest0-21swapper/122:10:131
686999675,10cyclictest0-21swapper/123:32:231
686999673,7cyclictest238562sleep100:14:171
686999672,8cyclictest12557-21sh21:56:421
686999672,8cyclictest1191-21munin-node22:35:151
686999672,7cyclictest17891-21diskmemload00:00:211
6869996714,45cyclictest0-21swapper/122:58:011
6869996711,50cyclictest2211-21Xorg22:04:591
686999665,15cyclictest0-21swapper/123:16:251
686999665,14cyclictest0-21swapper/100:20:371
686999664,56cyclictest27802-21aten_r1power_po22:25:121
686999664,15cyclictest0-21swapper/123:46:241
686999664,13cyclictest0-21swapper/123:37:361
686999663,8cyclictest4009-21ssh00:35:241
686999663,10cyclictest22599-21unixbench_singl19:50:261
686999663,10cyclictest14752-21kernelversion19:30:181
6869996615,42cyclictest14068-21sh19:30:011
686899665,44cyclictest0-21swapper/020:03:000
6868996645,15cyclictest0-21swapper/022:47:080
686899662,46cyclictest27394-21ssh22:24:420
686999656,14cyclictest0-21swapper/121:40:171
686999656,14cyclictest0-21swapper/121:40:171
686999656,11cyclictest0-21swapper/121:05:011
686999655,14cyclictest0-21swapper/121:10:261
686999654,11cyclictest6137-21munin-node20:35:211
686999653,8cyclictest18139-21df_inode19:40:141
686899655,43cyclictest0-21swapper/019:54:000
6868996544,16cyclictest0-21swapper/019:32:230
6868996544,15cyclictest0-21swapper/022:43:330
6868996544,15cyclictest0-21swapper/021:52:060
6868996543,16cyclictest0-21swapper/022:29:000
6868996539,20cyclictest0-21swapper/022:05:070
6868996536,23cyclictest0-21swapper/021:56:530
686899653,55cyclictest25108-21ssh23:17:490
6868996511,47cyclictest0-21swapper/000:20:170
686999645,16cyclictest0-21swapper/120:30:111
686999645,16cyclictest0-21swapper/120:30:111
686999645,15cyclictest0-21swapper/123:00:151
686999644,10cyclictest25366-21ssh00:15:261
686999643,9cyclictest23546-21df_inode19:55:151
686999643,8cyclictest7236-21basename20:40:111
686999643,10cyclictest9713-21munin-node19:15:241
686999643,10cyclictest1568-21runrttasks22:05:221
686999642,9cyclictest9538-21munin-node20:45:191
6868996434,24cyclictest0-21swapper/021:41:160
6868996434,24cyclictest0-21swapper/021:41:160
6868996434,24cyclictest0-21swapper/000:10:240
686899643,55cyclictest23439-21ssh21:19:580
686899642,55cyclictest9138-21aten_r1power_vo20:45:140
6868996414,29cyclictest0-21swapper/023:25:170
686999636,9cyclictest801-21munin-node20:20:251
686999634,10cyclictest25541-21munin-node20:00:161
686999633,8cyclictest16313-21df_abs19:35:151
686999633,10cyclictest16551-21munin-node21:05:141
686899638,49cyclictest9357-21ssh23:47:250
686899635,52cyclictest0-21swapper/022:50:190
6868996343,15cyclictest0-21swapper/022:31:080
6868996342,16cyclictest0-21swapper/022:55:130
6868996342,15cyclictest0-21swapper/022:35:170
686899634,52cyclictest32581-21munin-node00:30:110
6868996337,20cyclictest0-21swapper/022:02:560
686899633,54cyclictest27238-21sh23:20:370
686899632,54cyclictest21280-21crond19:50:000
686999625,15cyclictest0-21swapper/120:15:131
686999625,10cyclictest2177-21munin-node20:25:161
686999623,52cyclictest11186-21gltestperf20:50:151
6868996240,16cyclictest0-21swapper/023:38:320
6868996237,19cyclictest0-21swapper/020:05:200
686899622,53cyclictest6052-21ssh23:40:370
686899622,38cyclictest1568-21runrttasks21:32:080
686899622,33cyclictest12840-21ssh23:54:470
6868996213,43cyclictest88850irq/46-eth0-tx-23:31:230
6868996141,15cyclictest0-21swapper/021:29:070
6868996139,16cyclictest0-21swapper/019:56:270
686899602,52cyclictest15362-21munin-node23:00:170
686899602,51cyclictest7513-21munin-node20:40:140
6868996017,28cyclictest14070-21latency_hist19:30:020
6868995937,16cyclictest0-21swapper/021:06:430
686899592,50cyclictest14413-21munin-node21:00:150
6868995915,38cyclictest22112-21munin-node22:15:150
686899583,31cyclictest7054-21munin-run20:40:000
686899582,50cyclictest11612-21ps20:50:220
686899582,32cyclictest17612-21ksmtuned19:39:230
6868995811,41cyclictest0-21swapper/020:30:010
6868995811,41cyclictest0-21swapper/020:30:010
686899573,34cyclictest30227-21ssh00:25:170
686899572,48cyclictest32277-21munin-node20:20:240
686899572,25cyclictest19481-21latency_hist19:45:010
6868995717,34cyclictest0-21swapper/019:20:240
6868995716,32cyclictest3446-21idleruntime-cro20:30:000
6868995633,18cyclictest0-21swapper/019:16:150
686899563,47cyclictest13862-21taskset20:56:060
686899532,46cyclictest30471-21munin-node20:15:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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