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2026-01-08 - 21:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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 rack0slot6s.osadl.org (updated Thu Jan 08, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211153399777,28cyclictest0-21swapper/1223:52:404
211099426448,10sleep40-21swapper/419:09:2414
444220510,49data-loop.00-21swapper/119:07:441
211090324742,3sleep170-21swapper/1719:08:369
175698470,44rtkit-daemon0-21swapper/019:06:030
211155399444,40cyclictest0-21swapper/1923:44:1311
211082524439,3sleep120-21swapper/1219:07:524
211150699430,33cyclictest0-21swapper/321:35:4713
211092924340,2sleep80-21swapper/819:08:4718
211155399422,39cyclictest0-21swapper/1920:11:0911
211102124139,1sleep140-21swapper/1419:09:346
2111553994038,1cyclictest2228521-21StreamT~11
211154499400,39cyclictest0-21swapper/1623:05:148
211153599400,0cyclictest0-21swapper/1321:35:475
211070324035,3sleep30-21swapper/319:06:4313
211068024035,1sleep60-21swapper/619:06:2616
211155399395,34cyclictest0-21swapper/1921:39:3711
2111553993938,1cyclictest0-21swapper/1900:10:3311
211155399390,38cyclictest0-21swapper/1922:17:2011
211094023934,3sleep160-21swapper/1619:08:568
211087323934,3sleep180-21swapper/1819:08:1810
2111553993835,2cyclictest0-21swapper/1919:10:1911
211154499380,33cyclictest0-21swapper/1619:45:178
2111506993828,9cyclictest0-21swapper/320:36:1513
211056123834,2sleep130-21swapper/1319:05:335
2111553993737,0cyclictest0-21swapper/1922:27:1311
2111553993736,1cyclictest0-21swapper/1921:18:0511
2111553993736,1cyclictest0-21swapper/1921:18:0411
211155099370,36cyclictest0-21swapper/1823:07:3010
2111544993732,5cyclictest0-21swapper/1619:10:198
2111544993732,4cyclictest2163878-21dnfdaemon-syste20:06:458
211154499370,33cyclictest0-21swapper/1621:02:118
2111535993729,8cyclictest0-21swapper/1319:41:525
2111535993728,8cyclictest2189619-40tracker-miner-f20:36:165
2111533993733,3cyclictest2347157-21expr23:40:134
211152399371,35cyclictest326418-21CPU19
211152399370,36cyclictest0-21swapper/922:23:0719
211155399360,35cyclictest0-21swapper/1923:06:5011
211155099360,34cyclictest2293882-40tracker-miner-f22:39:3610
211154699360,35cyclictest2367350-40tracker-miner-f00:02:149
211154699360,35cyclictest2115416-21StreamT~9
211154499360,0cyclictest0-21swapper/1623:50:188
2111535993632,3cyclictest0-21swapper/1319:10:195
2111523993634,1cyclictest2331492-21ntpq23:20:1519
211152399360,0cyclictest0-21swapper/923:45:1719
2111520993634,1cyclictest0-21swapper/823:50:1318
211151899360,35cyclictest2143430-21StreamT~17
211150699360,35cyclictest0-21swapper/300:06:4013
211061923632,2sleep20-21swapper/219:06:0212
211055423632,2sleep70-21swapper/719:05:2617
210958223632,2sleep190-21swapper/1919:05:1911
444220350,33data-loop.00-21swapper/1119:07:453
2111553993535,0cyclictest0-21swapper/1920:56:0411
2111553993535,0cyclictest0-21swapper/1919:50:0011
2111553993534,1cyclictest0-21swapper/1923:39:0911
211155399350,34cyclictest2207217-21StreamT~11
211155399350,34cyclictest0-21swapper/1920:39:1011
2111550993533,1cyclictest2198298-40tracker-miner-f20:46:4110
211155099350,35cyclictest2163920-21StreamT~10
211155099350,35cyclictest0-21swapper/1819:10:2810
211155099350,33cyclictest2220085-21kworker/18:2+events21:25:1810
211154199350,34cyclictest2112080-40tracker-miner-f19:10:297
211153999350,35cyclictest2289507-21StreamT~6
211153999350,34cyclictest2130487-21StreamT~ns6
211153999350,34cyclictest0-21swapper/1420:35:036
2111535993527,6cyclictest0-21swapper/1323:53:525
211153599350,0cyclictest0-21swapper/1300:06:405
211153399350,34cyclictest2208238-40tracker-miner-f21:00:184
211153399350,34cyclictest1366487-21thunderbird00:38:484
211153399350,32cyclictest0-21swapper/1219:10:224
211152699352,1cyclictest5473-21CPU2
211152699350,2cyclictest2306493-21StreamT~2
2111523993533,1cyclictest326420-21CPU19
2111523993533,1cyclictest2120540-40tracker-miner-f19:16:2519
2111523993533,1cyclictest0-21swapper/923:40:1319
2111523993532,2cyclictest326418-21CPU19
2111523993531,3cyclictest2198363-21StreamT~19
211152399350,34cyclictest2112080-40tracker-miner-f19:10:3519
211152399350,34cyclictest1366487-21thunderbird22:11:2019
2111520993535,0cyclictest0-21swapper/819:10:1518
2111520993533,2cyclictest2306914-40tracker-miner-f22:55:1018
2111520993533,1cyclictest0-21swapper/821:44:0918
211152099350,34cyclictest0-21swapper/823:30:1218
211152099350,34cyclictest0-21swapper/819:50:0818
211152099350,34cyclictest0-21swapper/800:35:1718
211152099350,1cyclictest0-21swapper/800:30:1518
211152099350,1cyclictest0-21swapper/800:30:1418
211151899350,34cyclictest0-21swapper/721:15:0517
211151899350,34cyclictest0-21swapper/721:15:0517
211151899350,34cyclictest0-21swapper/700:27:1817
211151899350,34cyclictest0-21swapper/700:27:1817
2111514993533,1cyclictest326418-21CPU16
211151499350,34cyclictest2112080-40tracker-miner-f19:10:2316
211151499350,34cyclictest1366487-21thunderbird23:28:4616
2111506993532,2cyclictest0-21swapper/319:50:1613
2111506993529,6cyclictest0-21swapper/319:41:5213
2111502993533,1cyclictest326420-21CPU12
211055723531,2sleep90-21swapper/919:05:2919
194899350,29ntpd0-21swapper/1019:05:182
2111553993434,0cyclictest0-21swapper/1922:31:1611
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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