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2026-09-08 - 06:34
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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 Tue Sep 08, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
263962567546,14sleep10-21swapper/119:07:101
2671799544456,76cyclictest0-21swapper/019:12:150
26718994764,13cyclictest0-21swapper/119:12:151
265792293270,16sleep00-21swapper/019:08:580
82332890,3chrt8236-21unixbench-2d19:45:250
2671899747,16cyclictest0-21swapper/123:41:101
2671799749,38cyclictest19937-21iostat21:35:190
2671799749,38cyclictest19937-21iostat21:35:190
2671799742,66cyclictest20150-21sshd22:35:170
2671899736,17cyclictest0-21swapper/122:15:131
2671899736,16cyclictest0-21swapper/122:36:011
2671799732,64cyclictest9198-21gltestperf22:15:150
228699730,4rtkit-daemon2285-21rtkit-daemon21:58:500
197542730,4sleep019755-21ssh00:34:210
2671899728,16cyclictest0-21swapper/123:02:371
2671899727,17cyclictest0-21swapper/119:52:031
2671899726,17cyclictest0-21swapper/100:31:391
2671899725,17cyclictest0-21swapper/121:24:091
2671899725,14cyclictest0-21swapper/122:54:211
2671899716,18cyclictest0-21swapper/122:47:471
2671899716,17cyclictest0-21swapper/121:32:361
2671899715,18cyclictest0-21swapper/122:23:531
2671899715,16cyclictest0-21swapper/122:56:591
2671899715,16cyclictest0-21swapper/121:50:301
2671899715,11cyclictest17164-21ssh22:30:141
2671799712,63cyclictest11412-21missed_timers19:55:200
26717997119,45cyclictest8250irq/14-pata_sch23:40:000
242232710,4sleep024224-21ssh23:41:550
2671899706,18cyclictest0-21swapper/121:26:051
2671899706,17cyclictest0-21swapper/123:26:401
2671899706,17cyclictest0-21swapper/123:05:531
2671899706,17cyclictest0-21swapper/121:36:111
2671899706,17cyclictest0-21swapper/121:36:101
2671899705,17cyclictest0-21swapper/123:11:041
2671899705,15cyclictest0-21swapper/122:25:221
2671799702,54cyclictest20723-21munin-node00:35:190
2671899696,28cyclictest0-21swapper/100:36:301
2671899696,18cyclictest0-21swapper/121:05:301
2671899696,17cyclictest0-21swapper/121:55:141
2671899696,17cyclictest0-21swapper/121:46:151
2671899696,16cyclictest0-21swapper/123:18:151
2671899695,28cyclictest0-21swapper/123:23:211
2671899695,19cyclictest0-21swapper/123:57:471
2671899695,18cyclictest0-21swapper/121:00:261
2671899695,16cyclictest0-21swapper/119:56:101
2671799693,36cyclictest16939-21df21:30:170
2671799692,60cyclictest26340-21unixbench_multi20:35:280
2671899686,19cyclictest0-21swapper/120:10:021
2671899686,17cyclictest0-21swapper/123:35:341
2671899686,17cyclictest0-21swapper/120:55:011
2671899686,17cyclictest0-21swapper/119:15:141
2671899686,16cyclictest0-21swapper/120:40:281
2671899686,15cyclictest0-21swapper/120:22:091
2671899685,17cyclictest0-21swapper/120:25:191
2671899685,16cyclictest0-21swapper/123:46:251
2671899685,16cyclictest0-21swapper/122:02:101
2671899683,12cyclictest4028-21missed_timers22:05:211
2671799682,60cyclictest30504-21latency_hist20:50:010
2671799682,48cyclictest0-21swapper/023:24:350
2671799682,39cyclictest3199-21munin-run22:05:000
2671899678,15cyclictest0-21swapper/119:20:141
2671899676,17cyclictest0-21swapper/123:54:191
2671899676,17cyclictest0-21swapper/123:34:051
2671899676,17cyclictest0-21swapper/121:40:051
2671899676,15cyclictest0-21swapper/121:13:311
2671899675,16cyclictest0-21swapper/100:25:181
2671899675,15cyclictest0-21swapper/120:15:131
2671899673,8cyclictest6722-21ls22:10:211
2671799675,45cyclictest0-21swapper/023:16:260
2671799674,56cyclictest0-21swapper/000:21:170
2671899666,15cyclictest0-21swapper/121:19:401
2671899665,16cyclictest0-21swapper/100:10:241
2671899665,15cyclictest0-21swapper/122:40:311
2671899665,14cyclictest0-21swapper/100:15:221
2671899663,9cyclictest8846-21munin-run19:50:001
26718996616,7cyclictest1568-21runrttasks20:01:381
26718996615,8cyclictest0-21swapper/100:20:151
26718996614,10cyclictest88750irq/45-eth0-rx-00:00:281
2671799662,59cyclictest27572-21latency_hist22:50:010
2671799662,58cyclictest835-21lldpad22:21:350
2671799662,58cyclictest14609-21ssh23:25:140
2671799662,57cyclictest4887-21ssh22:06:240
2671799662,57cyclictest25282-21munin-node23:45:280
2671799662,57cyclictest10020-21ssh21:17:070
2671799662,46cyclictest19450-21runrttasks22:35:000
2671799662,33cyclictest11812-21latency_hist00:20:010
2671899657,16cyclictest0-21swapper/119:30:151
2671899656,18cyclictest0-21swapper/120:35:131
2671899656,16cyclictest0-21swapper/120:55:171
2671899655,17cyclictest0-21swapper/119:25:371
2671899654,9cyclictest16542-21munin-node20:10:151
2671899654,10cyclictest5903-21munin-node19:40:151
2671899653,20cyclictest88750irq/45-eth0-rx-00:05:251
2671899652,10cyclictest29897-21unixbench-2d20:45:241
2671799655,45cyclictest0-21swapper/021:26:190
2671799652,58cyclictest32115-21latency_hist19:25:010
2671799652,57cyclictest27984-21sh23:50:060
2671799652,57cyclictest15423-21munin-node20:05:260
2671799652,42cyclictest6116-21ssh22:10:130
2671799652,35cyclictest27716-21ssh22:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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