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2025-11-20 - 20:55

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 792 highest latencies:
System rack9slot8s.osadl.org (updated Thu Nov 20, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819501590,0irq/47-4a10000015854-21seq07:05:570
16382997537,0cyclictest30632-21rm12:28:210
16382997537,0cyclictest28976-21apt12:25:000
16382997343,0cyclictest27611-21ssh10:03:270
16382997233,0cyclictest3964-21ssh11:31:400
16382997151,0cyclictest5826-21ssh10:26:100
16382997149,0cyclictest16762-21ssh09:40:120
16382997143,0cyclictest25274-21runrttasks12:17:020
16382997141,0cyclictest11207-21sh10:37:480
16382997133,0cyclictest17255-21sendmail-msp12:00:010
16382997129,0cyclictest19204-21munin-run10:54:590
16382997046,0cyclictest11119-21kworker/u2:511:50:000
16382997043,0cyclictest9473-21ssh10:34:090
16382997032,0cyclictest1602-21ssh12:35:260
16382996957,0cyclictest81850irq/46-4a10000011:42:290
16382996955,0cyclictest81850irq/46-4a10000009:52:270
16382996952,0cyclictest24058-21apt-get09:55:450
16382996951,0cyclictest5629-21ssh09:16:430
16382996951,0cyclictest433-21ssh11:24:140
16382996950,0cyclictest7664-21ssh09:20:460
16382996943,0cyclictest21202-21ssh09:49:560
16382996943,0cyclictest15180-21lldpd08:59:430
16382996941,0cyclictest2148-21sshd09:08:340
16382996938,0cyclictest19157-21ssh12:04:040
16382996856,0cyclictest81850irq/46-4a10000007:59:540
16382996846,0cyclictest6103-21ssh11:36:140
16382996843,0cyclictest32097-21runrttasks08:51:260
16382996843,0cyclictest24388-21sendmail07:59:520
16382996831,0cyclictest19544-21kworker/u2:007:39:510
16382996831,0cyclictest0-21swapper11:14:360
16382996830,0cyclictest30547-21ssh11:19:160
16382996748,0cyclictest29296-21ssh10:07:000
16382996741,0cyclictest32575-21ssh10:14:100
16382996734,0cyclictest15800-21ssh10:47:360
16382996645,0cyclictest21409-21ssh12:08:510
16382996641,0cyclictest3226-21ssh10:20:330
16382996640,0cyclictest2465-21ssh09:09:590
16382996639,0cyclictest16553-21sendmail-msp09:39:560
16382996636,0cyclictest2524-21ssh11:28:390
16382996635,0cyclictest19972-21ssh10:56:310
16382996632,0cyclictest31069-21apt08:44:540
16382996629,0cyclictest10318-21kworker/u2:009:29:550
16382996548,0cyclictest24165-21ssh11:05:240
16382996547,0cyclictest13295-21runrttasks09:32:590
16382996544,0cyclictest882-21ssh10:15:380
16382996540,0cyclictest23275-21ssh11:03:380
16382996533,0cyclictest1412-21sshd09:03:340
16382996531,0cyclictest14284-21ssh11:53:440
16382996448,0cyclictest12830-21sh10:41:100
16382996442,0cyclictest31912-21ssh12:30:570
16382996432,0cyclictest24165-21ssh12:14:490
16382996431,0cyclictest25879-21apt08:09:530
16382996347,0cyclictest17984-21runrttasks07:17:410
16382996339,0cyclictest22732-21sshd07:48:330
16382996243,0cyclictest18270-21apt-get07:20:220
16382996239,0cyclictest30012-21sshd08:37:330
16382996147,0cyclictest16645-21kworker/u2:307:14:260
16382996146,0cyclictest81850irq/46-4a10000008:48:220
16382996143,0cyclictest20397-21seq07:32:370
16382996143,0cyclictest19958-21munin-run07:29:500
16382996128,0cyclictest23465-21sshd07:53:330
16382996043,0cyclictest22186-21munin-run07:44:510
16382995937,0cyclictest27369-21munin-run08:19:540
16382995838,0cyclictest28843-21idleruntime-cro08:29:530
16382995741,0cyclictest28911-21cat08:29:550
16382995738,0cyclictest26618-21munin-run08:14:530
16382995735,0cyclictest28117-21munin-run08:24:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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