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2026-07-12 - 16:50

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 Sun Jul 12, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19443052229213,10sleep140-21swapper/1419:06:096
194561099787,34cyclictest0-21swapper/122:08:171
1945612995119,30cyclictest0-21swapper/220:10:4212
1945612995119,30cyclictest0-21swapper/220:10:4112
1945663995050,0cyclictest0-21swapper/1921:37:5711
21442842490,1sleep90-21swapper/922:54:2319
21442842490,1sleep90-21swapper/922:54:2319
22367362480,0sleep10-21swapper/100:37:051
1945648994735,7cyclictest2511085-21WebExtensions23:03:356
1945654994621,24cyclictest0-21swapper/1623:53:538
1945648994622,3cyclictest2509492-21Xorg20:31:596
1945648994533,1cyclictest113156-21CPU6
1945648994532,1cyclictest2214692-40tracker-miner-f00:13:186
1945646994544,1cyclictest2057282-40tracker-miner-f21:15:255
1945622994544,1cyclictest185550irq/155-eno119:19:5015
1945622994543,2cyclictest185550irq/155-eno120:56:4615
1945615994544,1cyclictest0-21swapper/300:00:3313
178198450,43rtkit-daemon0-21swapper/219:05:3712
1945654994444,0cyclictest0-21swapper/1621:31:468
1945634994444,0cyclictest0-21swapper/921:17:1019
1945615994444,0cyclictest0-21swapper/300:28:0713
1945612994417,5cyclictest0-21swapper/219:53:1012
194561299441,2cyclictest113156-21CPU12
194467924441,2sleep80-21swapper/819:07:4318
1945652994331,0cyclictest0-21swapper/1520:51:507
1945648994333,1cyclictest2154053-40tracker-miner-f23:05:436
194564899431,35cyclictest113155-21CPU6
194564899431,34cyclictest113156-21CPU6
194564699437,35cyclictest113155-21CPU5
1945636994343,0cyclictest0-21swapper/1022:58:442
1945631994320,1cyclictest2511476-21firefox21:44:0218
1945625994332,11cyclictest0-21swapper/600:10:3016
1945622994341,1cyclictest185550irq/155-eno120:05:3915
1945622994341,1cyclictest185550irq/155-eno120:05:3915
194561599430,42cyclictest2073734-40tracker-miner-f21:32:3413
1945612994331,11cyclictest0-21swapper/222:52:5712
1945612994331,11cyclictest0-21swapper/222:52:5712
194561299430,33cyclictest2511476-21firefox19:36:2012
1945663994242,0cyclictest0-21swapper/1922:59:3811
1945654994242,0cyclictest0-21swapper/1623:30:178
1945654994242,0cyclictest0-21swapper/1623:07:158
1945654994241,1cyclictest2223618-40tracker-miner-f00:24:258
1945654994241,1cyclictest185550irq/155-eno100:26:008
1945652994241,0cyclictest0-21swapper/1500:09:077
1945648994215,27cyclictest1501irq_work/1419:53:106
1945648994215,27cyclictest1501irq_work/1419:35:546
1945648994214,27cyclictest1501irq_work/1421:39:596
194564899420,33cyclictest0-21swapper/1419:48:366
1945646994242,0cyclictest0-21swapper/1321:12:105
1945646994241,1cyclictest2100130-40tracker-miner-f22:02:125
194563699421,40cyclictest2218-21snmpd20:55:212
1945634994242,0cyclictest0-21swapper/919:36:5719
194563499423,38cyclictest2511509-21Socket18:22:5219
194563499423,38cyclictest2511509-21Socket18:22:5219
1945625994241,1cyclictest2511476-21firefox23:19:5516
194562299429,0cyclictest185550irq/155-eno122:44:1515
194562299429,0cyclictest185550irq/155-eno122:44:1415
1945615994242,0cyclictest0-21swapper/322:13:0013
1945615994242,0cyclictest0-21swapper/319:25:0013
194561599420,1cyclictest2511688-21Isolated18:22:5213
1945612994232,9cyclictest113155-21CPU12
1945612994232,9cyclictest0-21swapper/222:23:5212
1945612994231,10cyclictest0-21swapper/222:56:0212
194561299420,40cyclictest2166270-40tracker-miner-f23:19:3712
194561299420,39cyclictest0-21swapper/219:27:1712
194561299420,34cyclictest2236550-40tracker-miner-f00:36:1112
194561299420,33cyclictest0-21swapper/222:05:5912
194561299420,33cyclictest0-21swapper/200:33:3712
194561299420,33cyclictest0-21swapper/200:17:1112
194561299420,0cyclictest0-21swapper/223:32:2712
194561299420,0cyclictest0-21swapper/221:20:2612
194497624231,3sleep110-21swapper/1119:09:063
194471424239,2sleep120-21swapper/1219:07:474
194424424238,2sleep190-21swapper/1919:05:3411
1945659994141,0cyclictest0-21swapper/1820:00:3510
1945657994141,0cyclictest0-21swapper/1719:40:559
194565799410,0cyclictest0-21swapper/1700:06:289
1945654994140,1cyclictest0-21swapper/1619:24:198
1945654994139,2cyclictest0-21swapper/1620:16:018
1945654994138,2cyclictest0-21swapper/1621:01:338
1945654994135,5cyclictest0-21swapper/1621:06:108
194565499410,41cyclictest0-21swapper/1619:37:098
1945648994132,1cyclictest0-21swapper/1423:40:176
1945648994114,27cyclictest1501irq_work/1421:32:336
194564899410,33cyclictest2086852-40tracker-miner-f21:47:046
1945646994141,0cyclictest0-21swapper/1319:20:445
1945646994141,0cyclictest0-21swapper/1300:00:335
194563699410,40cyclictest2511833-21StyleThread#400:25:592
1945625994141,0cyclictest0-21swapper/600:09:0716
1945622994141,0cyclictest185550irq/155-eno119:50:2615
1945620994141,0cyclictest0-21swapper/420:56:4614
1945615994141,0cyclictest0-21swapper/323:40:1913
1945615994141,0cyclictest0-21swapper/323:35:1213
1945615994141,0cyclictest0-21swapper/320:46:4513
1945615994141,0cyclictest0-21swapper/319:40:1613
1945612994133,8cyclictest0-21swapper/219:15:0712
1945612994133,7cyclictest0-21swapper/222:40:3412
1945612994133,7cyclictest0-21swapper/222:40:3412
1945612994132,8cyclictest0-21swapper/220:30:4312
1945612994132,8cyclictest0-21swapper/219:25:0012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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