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2026-04-14 - 18:14
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 Tue Apr 14, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
40647399543542,1cyclictest609104-21kworker/7:0+i915-unordered23:37:1013
40647399543542,1cyclictest609104-21kworker/7:0+i915-unordered23:37:1013
40649699519518,1cyclictest620207-21kworker/12:2+i915-unordered23:38:104
40649699519518,1cyclictest620207-21kworker/12:2+i915-unordered23:38:104
406484995020,501cyclictest0-21swapper/1020:08:102
40647999497497,0cyclictest0-21swapper/900:38:1015
406506994932,491cyclictest0-21swapper/1522:57:107
4064799949226,465cyclictest0-21swapper/923:31:1015
40649199481480,0cyclictest519679-21kworker/11:1+i915-unordered21:43:103
4064469947823,454cyclictest0-21swapper/023:38:100
4064469947823,454cyclictest0-21swapper/023:38:100
40645499473471,2cyclictest423343-21kworker/2:1+i915-unordered20:08:108
40649699472471,1cyclictest519723-21kworker/12:1+i915-unordered21:28:104
4064919947022,447cyclictest124-21ksoftirqd/1100:11:103
406458994700,469cyclictest0-21swapper/321:35:109
40647999469469,0cyclictest419321-21kworker/9:2+i915-unordered19:56:1015
4064469946425,438cyclictest0-21swapper/022:43:100
40645899462460,2cyclictest0-21swapper/320:20:109
40649899459458,1cyclictest467455-21kworker/13:0+i915-unordered20:55:105
40649899459458,1cyclictest467455-21kworker/13:0+i915-unordered20:55:105
406465994589,29cyclictest0-21swapper/521:51:3211
40644999458458,0cyclictest632468-21kworker/1:1+i915-unordered00:38:101
40644999456456,0cyclictest0-21swapper/100:21:101
406506994555,58cyclictest0-21swapper/1522:08:107
40646599455426,28cyclictest1818-21snmpd23:37:0511
40646599455426,28cyclictest1818-21snmpd23:37:0511
40644999454454,0cyclictest572074-21kworker/1:0+i915-unordered23:31:101
40650699450449,1cyclictest656752-21kworker/15:0+i915-unordered00:26:107
406473994503,29cyclictest0-21swapper/722:34:3113
40647799444444,0cyclictest69750irq/159-i91519:56:1014
4064629944219,420cyclictest0-21swapper/420:48:3110
4064629944219,420cyclictest0-21swapper/420:48:3110
40649899441440,1cyclictest0-21swapper/1320:38:105
40644699441441,0cyclictest0-21swapper/022:08:100
40650299439439,0cyclictest0-21swapper/1422:43:106
4064499943818,30cyclictest0-21swapper/123:22:101
40649899436434,2cyclictest1818-21snmpd22:45:045
406446994350,0cyclictest0-21swapper/020:55:100
406446994350,0cyclictest0-21swapper/020:55:100
40645899434431,2cyclictest499489-21kworker/u64:10+events_unbound21:32:109
40644999434432,1cyclictest34-21ksoftirqd/119:56:101
406506994339,423cyclictest0-21swapper/1521:23:567
4065069943218,413cyclictest0-21swapper/1500:20:107
4064739943214,417cyclictest0-21swapper/720:54:5313
4064739943214,417cyclictest0-21swapper/720:54:5313
406465994326,30cyclictest0-21swapper/520:55:3411
406465994326,30cyclictest0-21swapper/520:55:3411
4064549943212,29cyclictest0-21swapper/200:00:108
40647799431431,0cyclictest69750irq/159-i91522:35:1014
4064739943112,418cyclictest0-21swapper/723:40:5213
4064739943112,418cyclictest0-21swapper/723:40:5213
4064629943110,418cyclictest0-21swapper/421:33:5310
40644699431430,1cyclictest0-21swapper/021:28:100
406465994306,30cyclictest0-21swapper/523:15:3311
406465994304,30cyclictest0-21swapper/523:58:5411
4064989942934,394cyclictest0-21swapper/1323:18:105
406484994291,425cyclictest571096-21pmu-power22:29:322
40646899429429,0cyclictest0-21swapper/623:34:4412
40646899429429,0cyclictest0-21swapper/623:34:4412
406465994291,29cyclictest0-21swapper/522:49:5611
40644699429429,0cyclictest0-21swapper/023:23:100
4064989942811,29cyclictest0-21swapper/1320:46:105
4064989942811,29cyclictest0-21swapper/1320:46:105
406458994282,29cyclictest0-21swapper/322:16:319
406458994280,30cyclictest0-21swapper/321:48:339
406498994272,424cyclictest142-21ksoftirqd/1319:35:105
406465994270,29cyclictest0-21swapper/520:15:3111
4064499942710,30cyclictest0-21swapper/122:07:101
40647799426426,0cyclictest69750irq/159-i91520:00:1014
406465994260,29cyclictest0-21swapper/521:45:3111
4064589942626,397cyclictest0-21swapper/300:03:529
40644699426426,0cyclictest0-21swapper/000:38:100
40650699425422,2cyclictest600149-21kworker/15:1+events23:46:327
40650699425422,2cyclictest600149-21kworker/15:1+events23:46:327
406458994253,29cyclictest0-21swapper/323:24:529
406458994250,30cyclictest0-21swapper/321:09:529
406502994245,30cyclictest0-21swapper/1419:52:106
406479994242,421cyclictest0-21swapper/920:14:3115
4065069942310,413cyclictest0-21swapper/1523:35:107
4065069942310,413cyclictest0-21swapper/1523:35:107
4064989942328,394cyclictest0-21swapper/1319:11:105
40647399423422,1cyclictest584208-21kworker/7:0+i915-unordered22:57:1013
40644699423423,0cyclictest0-21swapper/000:21:100
40644699423422,1cyclictest0-21swapper/023:31:100
406498994220,27cyclictest0-21swapper/1319:33:105
4064739942226,395cyclictest0-21swapper/700:26:3113
40646299422420,2cyclictest0-21swapper/423:35:4410
40646299422420,2cyclictest0-21swapper/423:35:4410
40649699421419,1cyclictest419146-21kworker/12:2+i915-unordered19:25:564
4064799942119,400cyclictest0-21swapper/900:34:0515
4064629942022,397cyclictest0-21swapper/423:59:3310
4064629942021,398cyclictest0-21swapper/419:36:3310
4064629942021,398cyclictest0-21swapper/419:21:3210
4064629942020,399cyclictest0-21swapper/422:11:3210
4064629942020,399cyclictest0-21swapper/420:50:3310
4064629942020,399cyclictest0-21swapper/420:50:3310
4064589942022,396cyclictest0-21swapper/323:32:539
40644699420419,1cyclictest0-21swapper/022:44:110
4065069941925,393cyclictest0-21swapper/1519:57:107
4065029941923,395cyclictest0-21swapper/1420:39:056
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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