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2025-05-02 - 12:53

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 50 highest latencies:
System rack9slot8s.osadl.org (updated Fri May 02, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121639912131,0cyclictest8155-21ssh00:10:030
121639911730,0cyclictest8953-21kworker/u2:200:15:560
121639911429,0cyclictest16678-21kworker/u2:419:45:010
121639911330,0cyclictest7847-21ssh22:51:070
121639911223,0cyclictest980-21ssh21:17:090
121639911121,0cyclictest18950-21ssh22:00:010
121639911028,0cyclictest28633-21ssh23:40:450
121639911012,0cyclictest8682-21sh00:10:540
121639910929,0cyclictest19708-21sh22:01:390
121639910927,0cyclictest26580-21ssh22:18:180
121639910926,0cyclictest12003-21sshd21:43:100
121639910926,0cyclictest10039-21ssh21:38:290
121639910925,0cyclictest30991-21ssh22:28:570
121639910924,0cyclictest3986-21runrttasks00:00:010
121639910924,0cyclictest2433-21ssh22:38:100
121639910921,0cyclictest24027-21latency_hist23:30:040
121639910831,0cyclictest3387-21rm22:40:150
121639910831,0cyclictest31608-21ssh21:12:490
121639910831,0cyclictest22739-21ssh23:27:040
121639910831,0cyclictest18102-21ssh00:35:320
121639910830,0cyclictest29288-21ssh22:24:540
121639910828,0cyclictest15711-21munin-run19:30:010
121639910828,0cyclictest11637-21ssh23:00:110
121639910827,0cyclictest4789-21ssh21:25:430
121639910826,0cyclictest4012-21ssh21:24:220
121639910824,0cyclictest9-21ksoftirqd/023:09:480
121639910823,0cyclictest26742-21ssh23:36:340
121639910732,0cyclictest16100-21sh00:30:120
121639910731,0cyclictest14131-21munin-run00:25:020
121639910730,0cyclictest21873-21ssh22:06:550
121639910729,0cyclictest25058-21rm22:14:420
121639910725,0cyclictest11177-21kworker/u2:721:48:160
121639910723,0cyclictest23436-21sshd20:22:110
121639910722,0cyclictest81950irq/47-4a10000019:25:010
121639910721,0cyclictest22289-21cron20:15:000
121639910713,0cyclictest903-21ssh22:34:410
121639910712,0cyclictest28950-21sendmail-msp21:00:030
121639910711,0cyclictest16856-21ssh23:12:570
121639910630,0cyclictest14635-21sh00:26:110
121639910628,0cyclictest650-21ssh23:51:530
121639910624,0cyclictest28904-21kworker/u2:321:05:300
121639910621,0cyclictest20014-21seq19:59:280
121639910620,0cyclictest8563-21ssh21:35:040
121639910612,0cyclictest30389-21sshd23:45:100
121639910532,0cyclictest2018-21in:imuxsock20:35:030
121639910527,0cyclictest6233-21ssh22:47:150
121639910520,0cyclictest11218-21ssh22:59:290
121639910516,0cyclictest23055-21munin-run20:20:030
121639910429,0cyclictest21242-21ssh23:23:350
121639910425,0cyclictest2491-21kworker/u2:200:05:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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