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2026-07-10 - 16:02
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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 rack0slot5.osadl.org (updated Fri Jul 10, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
2346272995211,519cyclictest0-21swapper/1320:40:285
234623999516514,2cyclictest2422463-21kworker/5:1+i915-unordered20:40:2811
234628099508507,1cyclictest2618056-21kworker/15:0+i915-unordered00:14:287
234622499491490,1cyclictest2455655-21kworker/1:1+i915-unordered21:32:281
234622499491490,1cyclictest2455655-21kworker/1:1+i915-unordered21:32:281
23462629948912,476cyclictest0-21swapper/1120:40:283
234627299486456,30cyclictest0-21swapper/1320:59:285
234623999482481,1cyclictest2444351-21kworker/5:2+i915-unordered20:59:2811
234624799478448,30cyclictest0-21swapper/700:14:2813
23462579947425,30cyclictest0-21swapper/1023:30:482
234627299472472,0cyclictest0-21swapper/1321:22:285
234627299472472,0cyclictest0-21swapper/1321:22:285
23462369947223,29cyclictest0-21swapper/423:07:1210
23462369947122,29cyclictest0-21swapper/422:39:5010
234623399471469,2cyclictest69750irq/159-i91520:40:289
23462579947021,447cyclictest0-21swapper/1021:18:492
23462529947024,30cyclictest0-21swapper/821:36:1314
23462529947024,30cyclictest0-21swapper/821:36:1314
2346262994698,460cyclictest0-21swapper/1121:22:283
2346262994698,460cyclictest0-21swapper/1121:22:283
23462579946921,29cyclictest0-21swapper/1020:47:502
234625499469439,30cyclictest0-21swapper/921:32:2815
234625499469439,30cyclictest0-21swapper/921:32:2815
23462529946824,29cyclictest0-21swapper/823:44:1114
234623999468467,0cyclictest2462113-21kworker/5:0+i915-unordered21:22:2811
234623999468467,0cyclictest2462113-21kworker/5:0+i915-unordered21:22:2811
23462529946720,30cyclictest0-21swapper/819:36:1214
23462579946622,30cyclictest0-21swapper/1020:27:282
23462579946523,29cyclictest0-21swapper/1000:22:272
23462579946523,29cyclictest0-21swapper/1000:22:272
23462369946518,30cyclictest0-21swapper/422:22:1110
23462579946420,29cyclictest0-21swapper/1020:45:282
23462579946312,29cyclictest0-21swapper/1000:05:492
23462529946216,30cyclictest0-21swapper/800:29:1114
23462529946216,30cyclictest0-21swapper/800:29:1114
23462369946214,30cyclictest0-21swapper/423:33:1210
23462369946213,30cyclictest0-21swapper/420:14:1210
23462369946116,29cyclictest0-21swapper/421:44:5010
23462549946021,30cyclictest0-21swapper/922:09:2815
234626299459456,2cyclictest2384862-21kworker/11:0+i915-unordered20:43:283
234623399459459,0cyclictest69750irq/159-i91522:33:289
234628099457456,1cyclictest2413171-21kworker/15:1+i915-unordered20:25:287
234628099456455,0cyclictest2390747-21kworker/15:0+i915-unordered19:53:287
234626299454453,1cyclictest0-21swapper/1121:32:283
234626299454453,1cyclictest0-21swapper/1121:32:283
234626299454453,1cyclictest0-21swapper/1120:59:283
234623399451451,0cyclictest69750irq/159-i91521:22:289
234623399451451,0cyclictest69750irq/159-i91521:22:289
234625799449446,2cyclictest2546537-21kworker/u64:7+events_unbound22:58:132
23462769944828,419cyclictest0-21swapper/1422:17:116
234625799448445,2cyclictest2395311-21kworker/u64:6+events_unbound20:19:502
23462439944724,420cyclictest0-21swapper/622:06:5112
234626299446444,1cyclictest2279712-21kworker/11:1+i915-unordered19:29:503
2346257994460,445cyclictest0-21swapper/1022:30:142
234623699446445,1cyclictest2600576-21kworker/4:0+pm00:07:0210
2346276994450,29cyclictest0-21swapper/1421:08:286
23462439944528,415cyclictest0-21swapper/619:41:5112
23462439944523,421cyclictest0-21swapper/621:22:1212
23462439944523,421cyclictest0-21swapper/621:22:1212
23462439944323,419cyclictest0-21swapper/621:43:1112
23462439944222,419cyclictest0-21swapper/620:56:5012
23462769944124,29cyclictest0-21swapper/1419:22:286
23462579944121,418cyclictest0-21swapper/1023:37:502
23462579944121,0cyclictest0-21swapper/1022:37:122
234625299441441,0cyclictest0-21swapper/822:41:4914
23462439944022,417cyclictest0-21swapper/620:24:1312
23462439944021,418cyclictest0-21swapper/623:04:5012
234623399440439,1cyclictest69750irq/159-i91520:43:289
23462579943921,416cyclictest0-21swapper/1021:01:112
23462579943920,417cyclictest0-21swapper/1022:34:132
23462579943920,417cyclictest0-21swapper/1019:45:102
23462579943920,417cyclictest0-21swapper/1000:34:502
23462579943920,0cyclictest0-21swapper/1019:54:122
23462439943920,418cyclictest0-21swapper/619:50:1112
2346236994390,26cyclictest0-21swapper/422:34:2810
23462629943816,421cyclictest0-21swapper/1119:55:513
23462439943819,418cyclictest0-21swapper/621:39:1312
234623399438437,1cyclictest69750irq/159-i91519:59:289
23462809943719,417cyclictest0-21swapper/1523:19:117
234627699437436,1cyclictest0-21swapper/1421:15:286
23462629943716,420cyclictest0-21swapper/1120:21:113
23462629943715,421cyclictest0-21swapper/1120:26:123
23462629943715,421cyclictest0-21swapper/1119:38:503
23462439943717,419cyclictest0-21swapper/620:38:1012
23462439943717,419cyclictest0-21swapper/600:25:1212
23462439943717,419cyclictest0-21swapper/600:25:1212
23462439943716,420cyclictest0-21swapper/620:17:1112
234623399437436,1cyclictest69750irq/159-i91521:32:289
234623399437436,1cyclictest69750irq/159-i91521:32:289
234623399437436,1cyclictest69750irq/159-i91520:59:289
234623399437436,1cyclictest0-21swapper/319:36:519
23462769943623,412cyclictest0-21swapper/1400:10:276
23462629943615,420cyclictest0-21swapper/1119:18:123
23462629943614,421cyclictest0-21swapper/1122:35:513
23462579943617,417cyclictest0-21swapper/1021:24:122
23462579943617,417cyclictest0-21swapper/1021:24:122
23462529943622,414cyclictest0-21swapper/821:45:2814
23462439943617,418cyclictest0-21swapper/623:15:1112
23462439943616,419cyclictest0-21swapper/621:10:1112
23462439943616,419cyclictest0-21swapper/600:15:5012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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