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2026-10-07 - 12:43

OSADL QA Farm on Real-time of Mainline Linux

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

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 rackeslot5s.osadl.org (updated Wed Oct 07, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12267992725,0cyclictest0-21swapper/021:19:170
1227899250,24cyclictest17870-21expr22:19:083
1227899250,24cyclictest0-21swapper/323:25:003
12273992523,2cyclictest10320-21ssh00:37:542
1227399250,1cyclictest0-21swapper/221:55:002
12268992523,1cyclictest9566-21ssh23:39:091
1226899250,24cyclictest5510-21diskmemload21:25:201
1226899250,24cyclictest0-21swapper/123:57:371
1226899250,1cyclictest0-21swapper/122:35:021
1226799251,24cyclictest62550irq/127-eno122:37:110
12278992424,0cyclictest0-21swapper/300:37:543
1227899240,23cyclictest5575-21sh22:36:433
1227899240,23cyclictest5510-21diskmemload23:16:023
1227899240,23cyclictest21914-21df00:19:143
1227899240,23cyclictest0-21swapper/322:11:413
1227899240,23cyclictest0-21swapper/300:25:233
1227899240,23cyclictest0-21swapper/300:08:163
12273992422,1cyclictest0-21swapper/223:50:502
1227399240,23cyclictest5510-21diskmemload23:08:152
1227399240,23cyclictest0-21swapper/222:15:002
1227399240,0cyclictest0-21swapper/222:39:152
12268992424,0cyclictest0-21swapper/100:21:421
12268992423,1cyclictest0-21swapper/123:44:191
12268992422,1cyclictest0-21swapper/122:19:071
1226899240,2cyclictest1450-21idleruntime-cro19:55:011
1226899240,24cyclictest5510-21diskmemload22:53:361
1226899240,24cyclictest0-21swapper/121:39:351
1226899240,24cyclictest0-21swapper/100:08:511
1226899240,23cyclictest8359-21ssh21:13:121
1226899240,23cyclictest8359-21ssh21:13:121
1226899240,23cyclictest23455-21sh21:24:411
1226899240,0cyclictest0-21swapper/100:18:311
12267992423,1cyclictest5269-21sh23:34:160
1226799242,1cyclictest62550irq/127-eno121:23:020
12278992323,0cyclictest0-21swapper/323:56:223
12278992323,0cyclictest0-21swapper/323:50:503
12278992322,1cyclictest5510-21diskmemload23:41:343
12278992321,1cyclictest2350-21munin-run21:35:003
12278992321,1cyclictest10811-21ssh21:43:173
12278992321,1cyclictest0-21swapper/322:23:103
12278992320,2cyclictest7130-21sh23:35:433
12278992320,2cyclictest6268-21sh00:34:133
1227899230,2cyclictest5510-21diskmemload21:26:163
1227899230,2cyclictest3706-21ssh21:36:373
1227899230,2cyclictest10338-21rm21:14:173
1227899230,2cyclictest10338-21rm21:14:173
1227899230,23cyclictest0-21swapper/323:11:203
1227899230,23cyclictest0-21swapper/322:08:273
1227899230,22cyclictest5717-21sh23:05:193
1227899230,22cyclictest2159-21ssh23:31:283
1227899230,22cyclictest19322-21turbostat21:50:003
1227899230,22cyclictest14884-21ssh00:12:383
1227899230,1cyclictest4280-21cat22:35:003
1227899230,0cyclictest0-21swapper/323:02:533
12273992323,0cyclictest0-21swapper/223:11:202
12273992323,0cyclictest0-21swapper/221:27:002
1227399230,23cyclictest0-21swapper/222:41:432
1227399230,23cyclictest0-21swapper/222:15:532
1227399230,22cyclictest7895-21apt-get21:40:002
1227399230,22cyclictest5510-21diskmemload23:00:282
1227399230,22cyclictest5510-21diskmemload00:30:102
1227399230,22cyclictest26091-21ssh21:56:222
1227399230,22cyclictest25035-21/usr/sbin/munin22:54:122
1227399230,22cyclictest24372-21ssh00:20:312
1227399230,22cyclictest1634-21ssh21:34:182
1227399230,22cyclictest0-21swapper/223:25:262
1227399230,22cyclictest0-21swapper/223:15:132
1227399230,22cyclictest0-21swapper/222:05:222
1227399230,22cyclictest0-21swapper/221:23:082
1227399230,22cyclictest0-21swapper/200:01:302
1227399230,1cyclictest5510-21diskmemload22:35:002
1227399230,0cyclictest0-21swapper/223:20:392
1227399230,0cyclictest0-21swapper/222:02:252
1227399230,0cyclictest0-21swapper/200:29:542
1227399230,0cyclictest0-21swapper/200:17:012
12268992323,0cyclictest1606-1kworker/u9:222:01:491
12268992323,0cyclictest0-21swapper/123:16:591
12268992321,1cyclictest0-21swapper/122:42:221
12268992321,1cyclictest0-21swapper/100:37:311
12268992320,2cyclictest18759-21rm23:46:311
1226899230,2cyclictest9303-21ssh22:10:071
1226899230,23cyclictest0-21swapper/123:10:541
1226899230,22cyclictest5510-21diskmemload00:30:111
1226899230,22cyclictest4277-21sh22:05:461
1226899230,22cyclictest17260-21sh22:47:081
1226899230,22cyclictest10450-21sh21:42:491
1226899230,22cyclictest0-21swapper/123:01:111
1226899230,22cyclictest0-21swapper/121:33:481
12267992323,0cyclictest5510-21diskmemload00:39:570
12267992323,0cyclictest0-21swapper/023:42:350
12267992323,0cyclictest0-21swapper/022:30:110
12267992323,0cyclictest0-21swapper/021:52:140
12267992323,0cyclictest0-21swapper/021:46:450
12267992323,0cyclictest0-21swapper/000:33:520
12267992323,0cyclictest0-21swapper/000:13:280
12267992323,0cyclictest0-21swapper/000:01:140
1226799232,21cyclictest62550irq/127-eno123:36:430
12267992321,2cyclictest0-21swapper/023:45:010
12267992320,2cyclictest0-21swapper/023:06:420
1226799231,1cyclictest5510-21diskmemload23:01:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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