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2026-09-02 - 06:24

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 Wed Sep 02, 2026 00:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41520599836,34cyclictest0-21swapper/1323:49:235
41520299755,31cyclictest0-21swapper/1220:34:244
41441325743,9sleep150-21swapper/1519:05:337
41522499560,0cyclictest0-21swapper/1919:46:4411
415183994817,30cyclictest0-21swapper/619:20:2216
415173994815,31cyclictest0-21swapper/323:19:0013
41471224843,3sleep130-21swapper/1319:09:125
41463724834,3sleep170-21swapper/1719:08:169
415183994719,6cyclictest0-21swapper/622:06:5916
41471324640,3sleep140-21swapper/1419:09:126
41471124439,3sleep120-21swapper/1219:09:114
197399440,37ntpd0-21swapper/1819:05:1810
41440424338,3sleep60-21swapper/619:05:2516
41464624236,3sleep40-21swapper/419:08:2214
41458624236,3sleep10-21swapper/119:07:401
41448924239,2sleep50-21swapper/519:06:2415
197399420,38ntpd0-21swapper/819:05:1818
41477624135,3sleep110-21swapper/1119:09:503
41440524136,3sleep70-21swapper/719:05:2617
41467724037,2sleep20-21swapper/219:08:4112
41453324035,3sleep30-21swapper/319:07:0213
415166993913,25cyclictest311irq_work/121:40:581
41518399380,37cyclictest0-21swapper/621:45:1716
41478623832,3sleep190-21swapper/1919:09:5811
41133323832,3sleep100-21swapper/1019:05:092
415188993734,2cyclictest607425-40tracker-miner-f22:45:5818
41518899370,36cyclictest542078-40tracker-miner-f21:30:5918
41522499361,32cyclictest0-21swapper/1922:50:1911
41518899360,35cyclictest0-21swapper/823:59:5918
41133223631,3sleep90-21swapper/919:05:0819
415217993534,1cyclictest502927-40tracker-miner-f20:46:289
415196993535,0cyclictest0-21swapper/1020:37:332
41518899357,28cyclictest0-21swapper/800:37:0218
41518899357,28cyclictest0-21swapper/800:37:0218
415188993534,1cyclictest616492-40tracker-miner-f22:59:5918
41517999356,28cyclictest0-21swapper/519:20:2215
41446923530,3sleep160-21swapper/1619:06:158
415224993434,0cyclictest0-21swapper/1921:08:5811
415224993432,1cyclictest187050irq/149-eno119:20:2811
415224993429,4cyclictest0-21swapper/1922:23:5811
41522499340,23cyclictest495118-21kworker/u80:6+i91521:16:5911
41522499340,23cyclictest495118-21kworker/u80:6+i91521:16:5811
41520799340,33cyclictest428827-40tracker-miner-f19:20:596
41520799340,1cyclictest433469-40tracker-miner-f19:29:486
41520599340,33cyclictest0-21swapper/1321:33:595
41520299340,33cyclictest0-21swapper/1222:23:594
41520299340,33cyclictest0-21swapper/1222:04:594
41519899340,33cyclictest0-21swapper/1122:23:513
415188993434,0cyclictest0-21swapper/822:28:5918
415188993434,0cyclictest0-21swapper/820:51:5918
41518399340,33cyclictest0-21swapper/623:58:5916
41518399340,33cyclictest0-21swapper/620:20:1816
41517999340,34cyclictest520332-40tracker-miner-f21:05:5915
41472123429,3sleep00-21swapper/019:09:190
415217993333,0cyclictest0-21swapper/1721:42:429
415217993328,5cyclictest0-21swapper/1723:28:599
415217993311,0cyclictest0-21swapper/1719:20:239
415212993333,0cyclictest0-21swapper/1520:37:597
41521299330,33cyclictest0-21swapper/1523:22:587
41521299330,33cyclictest0-21swapper/1519:46:587
41521299330,33cyclictest0-21swapper/1519:34:597
415207993332,1cyclictest593415-40tracker-miner-f22:30:596
41520799330,33cyclictest0-21swapper/1421:49:596
41520799330,33cyclictest0-21swapper/1419:58:026
415205993333,0cyclictest0-21swapper/1320:13:065
41520599330,0cyclictest0-21swapper/1321:45:585
41520299330,32cyclictest0-21swapper/1221:36:594
415196993331,2cyclictest2980553-21usb-storage22:12:432
41519299330,33cyclictest0-21swapper/920:01:2419
41519299330,32cyclictest0-21swapper/920:40:3219
415188993333,0cyclictest0-21swapper/820:47:5918
415188993333,0cyclictest0-21swapper/820:10:5818
41518899330,33cyclictest0-21swapper/821:11:5918
41518899330,32cyclictest0-21swapper/823:07:0118
41518899330,0cyclictest0-21swapper/820:55:5918
415186993333,0cyclictest0-21swapper/723:19:5917
415186993333,0cyclictest0-21swapper/722:40:5917
415183993332,1cyclictest0-21swapper/621:50:5916
415183993328,5cyclictest0-21swapper/622:41:5916
41518399330,32cyclictest0-21swapper/623:45:1516
41518399330,32cyclictest0-21swapper/619:26:5916
41518399330,1cyclictest503109-40tracker-miner-f20:48:5116
415179993333,0cyclictest0-21swapper/522:44:0115
415179993332,1cyclictest633826-40tracker-miner-f23:18:1115
41517699330,33cyclictest0-21swapper/421:52:5914
41517199330,33cyclictest0-21swapper/219:11:5912
41517199330,33cyclictest0-21swapper/200:38:5912
41517199330,33cyclictest0-21swapper/200:38:5912
415166993332,1cyclictest187050irq/149-eno122:39:421
415166993332,1cyclictest187050irq/149-eno122:23:521
415224993231,1cyclictest187050irq/149-eno121:04:1311
415224993231,1cyclictest187050irq/149-eno119:32:5011
415224993229,2cyclictest187050irq/149-eno119:13:3211
415220993231,1cyclictest187050irq/149-eno123:45:5510
415220993231,1cyclictest187050irq/149-eno123:23:1110
415220993231,1cyclictest187050irq/149-eno123:04:2010
415220993231,1cyclictest187050irq/149-eno100:00:2210
415217993232,0cyclictest0-21swapper/1721:20:409
415217993232,0cyclictest0-21swapper/1721:20:399
415217993229,2cyclictest0-21swapper/1719:46:449
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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