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2026-09-05 - 05:57

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 Sat Sep 05, 2026 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14863332860,0sleep181861irq_work/1800:11:2110
28577420730,71data-loop.00-21swapper/719:05:4917
171825310730,65AudioIP~allback0-21swapper/119:05:241
28577420720,70data-loop.00-21swapper/619:06:3516
28577420720,69data-loop.00-21swapper/1719:05:509
149100710720,68AudioIP~allback0-21swapper/319:07:0313
28577420700,68data-loop.00-21swapper/519:09:4015
28577420690,67data-loop.00-21swapper/819:05:5818
149100710670,65AudioIP~allback0-21swapper/219:08:0712
647520660,59data-loop.00-21swapper/1319:05:495
1208049996622,44cyclictest0-21swapper/821:37:3518
1208029996621,44cyclictest0-21swapper/219:15:2012
1208029996619,46cyclictest0-21swapper/222:11:3912
28577420650,62data-loop.00-21swapper/019:08:490
1208075996427,36cyclictest0-21swapper/1621:36:028
28577420630,60data-loop.00-21swapper/1819:05:5610
171825310630,61AudioIP~allback0-21swapper/1119:05:523
28577420620,60data-loop.00-21swapper/1019:09:022
28577420610,59data-loop.00-21swapper/1619:05:068
1208029996121,40cyclictest0-21swapper/221:54:1412
28577420600,57data-loop.00-21swapper/1919:08:4611
1208049996021,38cyclictest0-21swapper/820:02:4718
1208049996019,40cyclictest0-21swapper/820:24:5018
120803699606,32cyclictest0-21swapper/420:04:2314
28577420590,57data-loop.00-21swapper/419:09:3814
28577420590,56data-loop.00-21swapper/1519:05:407
28577420590,56data-loop.00-21swapper/1419:05:396
149100710590,57AudioIP~allback0-21swapper/1219:09:014
28577420580,50data-loop.00-21swapper/919:08:4419
1208055995719,38cyclictest0-21swapper/1022:29:062
1208055995716,41cyclictest0-21swapper/1021:36:022
1208049995510,44cyclictest0-21swapper/822:11:3918
120804999529,42cyclictest1212277-40tracker-miner-f19:15:2018
1208075995010,39cyclictest0-21swapper/1620:24:508
1208080994746,1cyclictest1249355-40tracker-miner-f19:50:5110
120806599471,45cyclictest1486394-21ssh00:12:095
120805599479,37cyclictest284964-21Xorg00:09:002
1208055994746,1cyclictest1331366-40tracker-miner-f21:21:152
1208055994713,33cyclictest1286130-40tracker-miner-f20:34:082
120804999470,36cyclictest0-21swapper/820:08:4718
28577420460,1data-loop.01354119-40tracker-miner-f21:45:506
120807599464,41cyclictest0-21swapper/1621:13:048
120807599464,41cyclictest0-21swapper/1621:13:048
1208055994645,1cyclictest1217974-40tracker-miner-f19:19:472
120804999469,36cyclictest0-21swapper/821:54:1418
1208039994640,4cyclictest5467-21CPU15
1208039994640,4cyclictest5467-21CPU15
120803999460,45cyclictest0-21swapper/523:21:1415
120807599455,39cyclictest0-21swapper/1621:55:338
1208075994536,8cyclictest0-21swapper/1623:00:028
1208055994545,0cyclictest0-21swapper/1021:45:202
1208055994544,1cyclictest1431974-40tracker-miner-f23:14:372
1208055994544,1cyclictest1427144-40tracker-miner-f23:07:182
120805599452,42cyclictest0-21swapper/1020:24:502
1208049994527,17cyclictest1481640-40tracker-miner-f00:05:4718
120804999450,34cyclictest1418061-40tracker-miner-f22:58:3218
120802999450,44cyclictest0-21swapper/221:35:1512
120802499450,37cyclictest1491984-21thunderbird22:42:450
1208083994442,1cyclictest187050irq/149-eno122:45:3911
1208080994443,1cyclictest0-21swapper/1819:27:5610
120807599442,41cyclictest0-21swapper/1620:26:208
120807599442,41cyclictest0-21swapper/1600:30:258
120807599442,41cyclictest0-21swapper/1600:30:248
1208059994443,1cyclictest1327199-40tracker-miner-f21:19:253
1208059994443,1cyclictest1327199-40tracker-miner-f21:19:243
120805999440,43cyclictest0-21swapper/1120:54:193
1208055994444,0cyclictest0-21swapper/1021:09:282
1208055994444,0cyclictest0-21swapper/1021:09:282
1208055994444,0cyclictest0-21swapper/1019:36:302
120805199448,35cyclictest1491984-21thunderbird21:40:1319
120804999440,35cyclictest0-21swapper/822:00:1418
120804999440,1cyclictest1272555-40tracker-miner-f20:19:4018
120804499440,1cyclictest1491336-21Isolated08:49:0416
120802999440,1cyclictest1440706-40tracker-miner-f23:21:5112
120802999440,1cyclictest1272283-40tracker-miner-f20:17:0612
1208024994439,4cyclictest1490833-21Socket08:49:040
15098962430,0sleep50-21swapper/500:38:3115
120808099430,43cyclictest0-21swapper/1800:38:3010
120807599435,37cyclictest0-21swapper/1600:12:128
120807599434,38cyclictest0-21swapper/1622:27:388
1208075994342,1cyclictest0-21swapper/1621:53:488
1208075994341,1cyclictest0-21swapper/1620:55:358
1208075994340,3cyclictest0-21swapper/1623:06:188
1208075994337,6cyclictest0-21swapper/1623:45:488
1208075994337,5cyclictest0-21swapper/1622:02:138
1208075994336,7cyclictest0-21swapper/1600:07:398
120807599433,39cyclictest0-21swapper/1622:36:488
120807599431,41cyclictest0-21swapper/1622:18:028
120807599431,41cyclictest0-21swapper/1622:11:398
1208070994342,1cyclictest0-21swapper/1522:30:307
1208067994343,0cyclictest0-21swapper/1422:30:306
120806599430,1cyclictest1481640-40tracker-miner-f00:06:005
1208059994342,1cyclictest1525793-21Isolated08:49:043
1208055994343,0cyclictest0-21swapper/1023:38:582
1208055994343,0cyclictest0-21swapper/1021:59:252
1208055994343,0cyclictest0-21swapper/1019:57:042
1208055994343,0cyclictest0-21swapper/1019:49:242
1208055994342,1cyclictest1417822-40tracker-miner-f22:56:042
1208055994342,1cyclictest1226811-40tracker-miner-f19:27:112
1208049994343,0cyclictest0-21swapper/820:53:4018
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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