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2026-04-15 - 00:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 rack5slot3s.osadl.org (updated Tue Apr 14, 2026 12:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59232243166,24sleep10-21swapper/107:06:551
59232243166,24sleep10-21swapper/107:06:541
60132202165,24sleep30-21swapper/307:08:043
60132202165,24sleep30-21swapper/307:08:043
59242202165,25sleep20-21swapper/207:06:552
59242202165,25sleep20-21swapper/207:06:552
58652201164,25sleep00-21swapper/007:06:090
58652201164,25sleep00-21swapper/007:06:080
10862720,4sleep341-21ksoftirqd/311:50:123
24952420,1sleep30-21swapper/310:40:133
6259993422,3cyclictest0-21swapper/310:04:553
6259993217,9cyclictest0-21swapper/308:35:393
625999311,16cyclictest0-21swapper/307:35:033
625999311,15cyclictest0-21swapper/307:10:393
625999311,14cyclictest0-21swapper/311:26:393
625999311,13cyclictest0-21swapper/311:06:003
625999311,11cyclictest0-21swapper/311:42:313
624099311,22cyclictest87350irq/126-enp1s0-10:12:230
624099311,14cyclictest29521-21munin-run09:15:010
625999301,19cyclictest0-21swapper/308:05:473
625999301,14cyclictest0-21swapper/310:59:563
625999301,14cyclictest0-21swapper/309:49:433
625999301,14cyclictest0-21swapper/308:15:273
625999301,14cyclictest0-21swapper/308:15:273
625999301,13cyclictest0-21swapper/311:30:273
625999301,12cyclictest0-21swapper/312:30:313
625999301,12cyclictest0-21swapper/310:19:593
625999301,11cyclictest27315-21diskmemload12:16:553
625999301,11cyclictest0-21swapper/308:44:043
625999300,14cyclictest0-21swapper/310:53:563
624099309,10cyclictest0-21swapper/008:45:010
6259992914,8cyclictest0-21swapper/307:54:353
625999291,20cyclictest0-21swapper/307:48:033
625999291,13cyclictest0-21swapper/309:51:393
625999291,13cyclictest0-21swapper/309:26:233
625999291,12cyclictest0-21swapper/311:03:483
625999291,12cyclictest0-21swapper/310:06:353
625999291,11cyclictest0-21swapper/309:32:193
625999291,11cyclictest0-21swapper/308:32:533
6259992910,4cyclictest0-21swapper/311:19:353
6259992815,8cyclictest0-21swapper/309:02:273
625999281,14cyclictest0-21swapper/311:39:553
625999281,13cyclictest0-21swapper/311:10:353
625999281,13cyclictest0-21swapper/310:23:113
625999281,12cyclictest0-21swapper/312:03:433
625999281,12cyclictest0-21swapper/310:28:113
625999280,20cyclictest0-21swapper/308:51:403
625999280,19cyclictest0-21swapper/311:48:553
625999280,19cyclictest0-21swapper/308:59:563
625999280,19cyclictest0-21swapper/308:26:113
625999280,15cyclictest0-21swapper/309:44:193
625999280,13cyclictest0-21swapper/312:37:313
624899280,20cyclictest0-21swapper/108:29:081
624099284,11cyclictest20732-21awk08:55:010
625999271,17cyclictest0-21swapper/312:13:553
625999271,12cyclictest0-21swapper/309:14:513
625999271,12cyclictest0-21swapper/308:13:353
625999271,11cyclictest0-21swapper/309:37:113
625999271,11cyclictest0-21swapper/309:21:553
625999270,19cyclictest0-21swapper/307:15:203
625999270,12cyclictest0-21swapper/308:20:153
624099271,5cyclictest0-21swapper/012:35:570
625999269,3cyclictest0-21swapper/307:34:513
625999268,3cyclictest0-21swapper/308:45:323
625999261,13cyclictest0-21swapper/310:33:193
6259992611,3cyclictest0-21swapper/307:44:393
625999261,12cyclictest0-21swapper/311:23:283
625999261,11cyclictest0-21swapper/312:27:313
625999260,13cyclictest0-21swapper/311:55:273
624099262,10cyclictest29262-21kworker/0:109:27:040
624099261,5cyclictest0-21swapper/010:45:220
625999251,12cyclictest0-21swapper/309:16:073
625999251,11cyclictest0-21swapper/309:06:113
625999250,19cyclictest0-21swapper/308:01:033
625999250,10cyclictest0-21swapper/310:46:283
624899255,8cyclictest8108-40dnf07:11:081
624899251,6cyclictest0-21swapper/112:20:201
624899250,5cyclictest0-21swapper/111:35:081
624099251,12cyclictest7207-21perf12:05:020
125062251,4sleep112528-21fschecks_count08:35:151
625999241,12cyclictest0-21swapper/312:05:313
625999241,12cyclictest0-21swapper/310:37:393
625999241,12cyclictest0-21swapper/307:21:043
625999241,11cyclictest0-21swapper/312:23:273
625999240,9cyclictest0-21swapper/310:11:553
625999240,12cyclictest0-21swapper/307:55:033
625399246,9cyclictest87350irq/126-enp1s0-07:20:262
624099241,11cyclictest23772-21/usr/sbin/munin10:15:160
624099241,11cyclictest17798-21/usr/sbin/munin11:15:190
625999231,13cyclictest0-21swapper/307:25:513
6253992316,4cyclictest25316-21grep07:50:152
6248992316,4cyclictest392-21memory09:20:201
624899231,4cyclictest20959-21users10:05:251
624099239,3cyclictest11818-21/usr/sbin/munin12:15:200
624099232,10cyclictest26585-21/usr/sbin/munin11:35:190
624099231,11cyclictest2401-21/usr/sbin/munin10:40:250
624099231,11cyclictest11604-21idleruntime-cro12:15:010
624099230,17cyclictest0-21swapper/010:50:240
625399226,8cyclictest87350irq/126-enp1s0-11:00:192
625399224,5cyclictest4381-21awk10:45:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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