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2026-05-22 - 10:08

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 Fri May 22, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17198993021,5cyclictest10156-21sh00:28:291
17204992625,1cyclictest34-21ksoftirqd/323:20:103
17204992625,1cyclictest34-21ksoftirqd/323:20:103
17204992625,1cyclictest34-21ksoftirqd/322:14:423
17198992622,4cyclictest10464-21diskmemload23:26:181
1719899260,1cyclictest0-21swapper/122:56:241
1719899260,1cyclictest0-21swapper/121:10:101
17204992524,1cyclictest34-21ksoftirqd/320:20:013
1720099250,24cyclictest10464-21diskmemload22:37:432
17198992522,3cyclictest27615-21ssh22:22:081
17198992521,4cyclictest10464-21diskmemload22:09:221
17198992520,4cyclictest0-21swapper/123:36:061
17198992520,4cyclictest0-21swapper/123:03:511
17198992520,4cyclictest0-21swapper/122:19:031
1719899250,24cyclictest10464-21diskmemload00:36:351
1719899250,24cyclictest0-21swapper/123:57:161
1719899250,24cyclictest0-21swapper/121:38:501
1719899250,24cyclictest0-21swapper/121:26:451
1719899250,24cyclictest0-21swapper/121:21:461
1719899250,22cyclictest22874-21sh22:45:521
1719899250,21cyclictest0-21swapper/123:42:051
1719899250,21cyclictest0-21swapper/122:39:081
1719899250,20cyclictest0-21swapper/121:32:451
1719899250,1cyclictest0-21swapper/122:12:521
1719899250,0cyclictest0-21swapper/123:20:181
1719899250,0cyclictest0-21swapper/123:20:181
1719499250,24cyclictest10464-21diskmemload21:30:170
1719499250,24cyclictest0-21swapper/023:40:160
1719499250,24cyclictest0-21swapper/022:00:310
1719499250,1cyclictest24412-21ssh21:22:440
17204992422,1cyclictest0-21swapper/323:38:553
1720499240,24cyclictest0-21swapper/323:26:233
1720499240,23cyclictest0-21swapper/300:20:193
1720099240,3cyclictest28478-21ssh22:50:512
1720099240,24cyclictest6099-21ssh23:57:332
1720099240,24cyclictest0-21swapper/223:07:082
1720099240,1cyclictest12487-21rm23:32:572
1720099240,1cyclictest0-21swapper/223:37:232
17198992423,1cyclictest10464-21diskmemload21:10:011
17198992422,1cyclictest0-21swapper/100:12:491
17198992421,3cyclictest0-21swapper/123:50:561
17198992421,2cyclictest0-21swapper/100:31:141
17198992420,3cyclictest0-21swapper/123:32:541
17198992420,0cyclictest0-21swapper/122:34:231
1719899240,24cyclictest0-21swapper/123:14:221
1719899240,23cyclictest0-21swapper/123:46:301
1719899240,23cyclictest0-21swapper/123:16:131
1719899240,23cyclictest0-21swapper/122:40:171
1719899240,21cyclictest10464-21diskmemload22:01:591
1719899240,21cyclictest0-21swapper/122:25:101
1719899240,0cyclictest0-21swapper/100:00:551
17194992424,0cyclictest0-21swapper/021:59:240
17194992422,1cyclictest0-21swapper/023:45:360
17194992422,1cyclictest0-21swapper/021:11:570
1719499240,23cyclictest62550irq/127-eno123:00:260
1719499240,23cyclictest10464-21diskmemload23:12:470
1719499240,23cyclictest0-21swapper/023:38:590
1719499240,23cyclictest0-21swapper/022:25:550
1719499240,23cyclictest0-21swapper/022:13:030
1719499240,23cyclictest0-21swapper/021:16:400
1719499240,23cyclictest0-21swapper/000:07:460
1719499240,0cyclictest0-21swapper/022:32:450
17204992323,0cyclictest0-21swapper/322:53:233
17204992321,2cyclictest4670-21ssh22:01:383
1720499230,2cyclictest9633-21rm22:05:493
1720499230,23cyclictest10464-21diskmemload22:26:003
1720499230,23cyclictest10464-21diskmemload21:33:063
1720499230,23cyclictest0-21swapper/323:43:313
1720499230,23cyclictest0-21swapper/323:03:533
1720499230,23cyclictest0-21swapper/321:53:203
1720499230,23cyclictest0-21swapper/321:36:333
1720499230,23cyclictest0-21swapper/300:01:533
1720499230,22cyclictest931-21diskmemload21:57:503
1720499230,22cyclictest5591-21ssh22:30:553
1720499230,22cyclictest23428-21apt-get23:15:013
1720499230,22cyclictest0-21swapper/321:28:493
1720499230,0cyclictest10464-21diskmemload23:53:113
1720499230,0cyclictest0-21swapper/323:46:203
1720499230,0cyclictest0-21swapper/300:34:223
1720499230,0cyclictest0-21swapper/300:16:013
1720499230,0cyclictest0-21swapper/300:12:363
17200992323,0cyclictest10464-21diskmemload23:40:102
17200992323,0cyclictest10464-21diskmemload22:30:542
17200992323,0cyclictest10464-21diskmemload21:16:042
17200992323,0cyclictest0-21swapper/223:13:442
17200992323,0cyclictest0-21swapper/222:26:172
17200992323,0cyclictest0-21swapper/222:21:172
17200992323,0cyclictest0-21swapper/221:37:572
17200992323,0cyclictest0-21swapper/200:06:032
17200992323,0cyclictest0-21swapper/200:04:442
17200992321,1cyclictest6774-21munin-run19:55:002
17200992321,1cyclictest0-21swapper/200:13:262
17200992320,2cyclictest32163-21ssh21:57:412
17200992319,0cyclictest0-21swapper/221:32:332
1720099230,23cyclictest0-21swapper/223:24:052
1720099230,23cyclictest0-21swapper/223:24:052
1720099230,23cyclictest0-21swapper/222:04:242
1720099230,23cyclictest0-21swapper/221:40:332
1720099230,23cyclictest0-21swapper/221:20:322
1720099230,23cyclictest0-21swapper/200:31:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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