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2026-07-09 - 16:11

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 Jul 09, 2026 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21201642710,0sleep180-21swapper/1823:29:3810
188968025946,3sleep110-21swapper/1119:06:283
1890608995819,35cyclictest0-21swapper/122:21:401
189063199527,38cyclictest0-21swapper/922:38:1719
188969925241,7sleep30-21swapper/319:06:4013
1890613995122,28cyclictest0-21swapper/320:01:1713
1890651995050,0cyclictest0-21swapper/1621:16:208
1890608995012,37cyclictest0-21swapper/123:31:271
189062999491,1cyclictest113155-21CPU18
1890608994919,29cyclictest0-21swapper/123:04:281
1890661994847,1cyclictest1948315-40tracker-miner-f20:14:1911
1890613994821,26cyclictest0-21swapper/322:02:4113
1890613994812,3cyclictest0-21swapper/323:31:2713
189065199470,0cyclictest0-21swapper/1600:35:258
1890645994747,0cyclictest185550irq/155-eno123:01:166
1890645994746,1cyclictest185550irq/155-eno122:22:306
1890617994732,13cyclictest113155-21CPU14
1890608994723,0cyclictest331rcuc/120:01:171
1890661994621,25cyclictest0-21swapper/1900:33:3711
1890661994621,25cyclictest0-21swapper/1900:33:3611
1890645994645,1cyclictest185550irq/155-eno120:59:416
1890645994644,1cyclictest185550irq/155-eno122:02:136
1890642994644,1cyclictest2150729-21ssh00:03:405
1890642994643,2cyclictest2133-21usb-storage23:37:255
189064299460,45cyclictest2511699-21StyleThread#422:30:555
189064299460,1cyclictest2510193-21thunderbird22:55:555
189063199468,38cyclictest0-21swapper/919:23:1719
1890613994645,1cyclictest2062500-40tracker-miner-f22:21:3813
1890613994618,27cyclictest2511476-21firefox23:04:2913
1890661994544,1cyclictest2159422-40tracker-miner-f00:12:2311
1890661994537,7cyclictest113155-21CPU11
1890651994543,1cyclictest2511509-21Socket18:22:528
1890651994543,1cyclictest113155-21CPU8
1890651994543,1cyclictest0-21swapper/1600:04:558
1890645994544,1cyclictest185550irq/155-eno121:40:076
1890645994544,1cyclictest185550irq/155-eno121:40:076
189064599450,1cyclictest2511821-21Isolated18:22:526
1890642994544,1cyclictest0-21swapper/1300:15:535
1890642994543,1cyclictest2511476-21firefox20:18:585
1890642994543,1cyclictest0-21swapper/1319:29:355
1890629994543,1cyclictest0-21swapper/823:43:3818
1890617994532,12cyclictest0-21swapper/422:27:3514
1890613994545,0cyclictest0-21swapper/319:40:5113
1890613994543,1cyclictest2009878-40tracker-miner-f21:22:1113
1890613994543,1cyclictest1934726-40tracker-miner-f19:57:1113
1890608994544,1cyclictest1943973-40tracker-miner-f20:09:371
189066199445,0cyclictest0-21swapper/1900:03:2511
1890661994444,0cyclictest0-21swapper/1922:25:1711
1890661994443,1cyclictest2067342-40tracker-miner-f22:30:0711
1890651994442,1cyclictest2511688-21Isolated18:22:528
1890651994442,1cyclictest2511688-21Isolated18:22:528
1890651994441,1cyclictest0-21swapper/1622:37:468
189065199440,0cyclictest0-21swapper/1600:14:108
1890613994444,0cyclictest0-21swapper/321:58:4413
1890613994444,0cyclictest0-21swapper/300:24:5713
1890613994444,0cyclictest0-21swapper/300:24:5713
1890613994443,1cyclictest2005503-40tracker-miner-f21:17:1413
1890613994443,1cyclictest1900024-40tracker-miner-f19:20:1213
1890613994442,2cyclictest2023372-40tracker-miner-f21:39:1413
1890608994443,1cyclictest2137742-40tracker-miner-f23:49:391
1890608994443,1cyclictest1921534-40tracker-miner-f19:41:411
1890608994440,3cyclictest113155-21CPU1
178198440,41rtkit-daemon0-21swapper/719:05:5417
1890661994316,27cyclictest0-21swapper/1922:02:4111
1890657994338,5cyclictest0-21swapper/1800:36:3710
1890651994341,1cyclictest0-21swapper/1623:21:288
1890645994343,0cyclictest185550irq/155-eno122:37:466
1890645994343,0cyclictest185550irq/155-eno120:20:356
1890645994342,1cyclictest185550irq/155-eno122:17:256
1890645994342,1cyclictest185550irq/155-eno119:45:026
1890645994342,0cyclictest185550irq/155-eno119:45:006
1890645994341,1cyclictest185550irq/155-eno121:46:566
1890645994341,1cyclictest185550irq/155-eno121:46:566
1890642994342,1cyclictest0-21swapper/1320:48:325
189064299430,42cyclictest2511688-21Isolated18:22:525
189064299430,42cyclictest0-21swapper/1323:56:025
1890631994341,1cyclictest113156-21CPU19
189062099430,0cyclictest0-21swapper/500:36:0915
1890617994341,1cyclictest0-21swapper/419:50:0614
1890617994332,1cyclictest0-21swapper/420:13:5614
189061399439,33cyclictest0-21swapper/321:26:4013
1890613994343,0cyclictest0-21swapper/322:26:5713
1890613994343,0cyclictest0-21swapper/322:14:4413
1890613994343,0cyclictest0-21swapper/322:05:3113
1890613994342,1cyclictest2172554-40tracker-miner-f00:27:1313
1890613994342,1cyclictest2172554-40tracker-miner-f00:27:1313
189060899437,4cyclictest0-21swapper/121:24:481
1890608994343,0cyclictest0-21swapper/122:14:441
1890608994343,0cyclictest0-21swapper/121:13:201
1890608994343,0cyclictest0-21swapper/100:10:541
1890661994242,0cyclictest0-21swapper/1922:07:3011
1890661994242,0cyclictest0-21swapper/1900:28:5111
1890661994242,0cyclictest0-21swapper/1900:28:5111
1890661994241,1cyclictest2181186-40tracker-miner-f00:35:4911
1890661994238,3cyclictest113155-21CPU11
1890661994216,26cyclictest1971rcuc/1920:01:1611
1890651994242,0cyclictest0-21swapper/1622:40:588
1890651994242,0cyclictest0-21swapper/1600:34:388
1890651994242,0cyclictest0-21swapper/1600:34:388
1890651994240,1cyclictest0-21swapper/1622:55:558
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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