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2025-11-24 - 03:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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.

Total number of samples: 50 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 rack9slot8s.osadl.org (updated Mon Nov 24, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819509480,0irq/47-4a10000029803-1kworker/u3:319:05:160
312259912152,0cyclictest81850irq/46-4a10000000:09:590
312259911529,0cyclictest32070-21munin-node19:14:570
312259911430,0cyclictest15184-21lldpd19:25:070
312259911330,0cyclictest9628-21latency_hist20:19:550
312259911327,0cyclictest4195-21ssh21:50:370
312259911231,0cyclictest5560-21kworker/u2:200:15:000
312259911229,0cyclictest24305-21ssh21:24:500
312259911141,0cyclictest81850irq/46-4a10000021:19:570
312259911127,0cyclictest27064-21ssh22:38:520
312259911126,0cyclictest24814-21ssh22:34:120
312259911031,0cyclictest17899-21ssh22:19:390
312259911029,0cyclictest7848-21ssh23:07:050
312259911028,0cyclictest17202-21diskmemload23:26:130
312259911026,0cyclictest31891-21rm21:40:350
312259911026,0cyclictest22860-21ssh23:39:200
31225991098,0cyclictest11958-21ssh00:25:140
312259910929,0cyclictest30127-21sh22:45:150
312259910928,0cyclictest13294-21apt22:09:560
312259910828,0cyclictest30153-21ssh21:37:020
312259910828,0cyclictest28112-21ssh23:50:230
312259910727,0cyclictest26675-21ssh23:47:230
312259910727,0cyclictest12465-21ssh23:16:590
312259910725,0cyclictest5108-21ssh23:01:100
312259910724,0cyclictest15905-21sh00:33:500
312259910723,0cyclictest25171-21ssh23:44:150
312259910722,0cyclictest26244-21ssh21:28:530
312259910711,0cyclictest11064-21apt20:29:520
312259910629,0cyclictest19629-21ssh22:23:110
312259910612,0cyclictest17204-21apt21:09:550
312259910610,0cyclictest18759-21ssh23:30:210
312259910610,0cyclictest18148-21ssh21:11:460
31225991057,0cyclictest9470-21ssh23:10:310
312259910520,0cyclictest8305-21sh00:17:330
312259910510,0cyclictest14442-21ssh23:21:080
312259910430,0cyclictest5230-21latency_hist19:49:550
312259910429,0cyclictest9948-21ssh00:20:560
312259910423,0cyclictest17202-21diskmemload22:41:280
312259910421,0cyclictest32110-21ssh23:59:080
312259910418,0cyclictest15180-21lldpd19:14:520
31225991039,0cyclictest1872-21ssh22:54:250
312259910323,0cyclictest20527-21latency_hist22:25:000
312259910323,0cyclictest15184-21lldpd20:24:090
312259910321,0cyclictest6601-21apt19:59:520
312259910312,0cyclictest13252-21sshd20:43:080
312259910230,0cyclictest5131-21awk19:49:510
312259910224,0cyclictest81950irq/47-4a10000021:49:570
312259910220,0cyclictest4397-21ls19:44:510
312259910220,0cyclictest15709-21apt20:59:540
312259910214,0cyclictest18788-21apt-get00:40:030
312259910213,0cyclictest9957-21ssh22:02:500
312259910125,0cyclictest81950irq/47-4a10000020:34:540
312259910123,0cyclictest81950irq/47-4a10000022:14:590
31225991008,0cyclictest2394-21ssh22:55:210
312259910027,0cyclictest2599-21runrttasks19:32:310
312259910021,0cyclictest3034-21sshd19:35:040
312259910014,0cyclictest14965-21munin-run20:54:540
312259910012,0cyclictest27448-21ssh21:31:180
3122599998,0cyclictest7677-21ssh21:58:040
31225999923,0cyclictest26503-21kworker/u2:000:04:060
31225999913,0cyclictest16460-21apt21:04:540
31225999911,0cyclictest7364-21munin-run20:04:530
31225999826,0cyclictest15201-21runrttasks20:37:060
31225999717,0cyclictest81950irq/47-4a10000020:49:540
31225999616,0cyclictest8829-21munin-run20:14:540
3122599959,0cyclictest798-21seq19:19:550
31225999423,0cyclictest8049-21runrttasks20:09:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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