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2025-06-28 - 21:50

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 highest latencies:
System rack9slot8s.osadl.org (updated Sat Jun 28, 2025 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501920,0irq/46-4a10000017754-21kworker/0:307:09:490
18900998964,0cyclictest25914-21ssh10:04:560
18900998563,0cyclictest14992-21ssh12:24:220
18900998550,0cyclictest29553-21sshd10:14:350
18900998360,0cyclictest20357-21ssh12:36:440
18900998356,0cyclictest18275-21ssh11:11:580
18900998346,0cyclictest792-21ssh11:51:310
18900998344,0cyclictest11463-21ssh10:53:560
18900998257,0cyclictest16878-21ssh12:28:440
18900998257,0cyclictest12654-21ssh12:18:570
18900998256,0cyclictest6973-21ssh09:15:260
18900998164,0cyclictest21668-21ssh11:20:400
18900998156,0cyclictest5816-21ssh12:03:150
18900998150,0cyclictest16665-21rm09:40:180
18900998142,0cyclictest1161-21ssh10:25:350
18900998062,0cyclictest14119-21ssh09:33:590
18900998060,0cyclictest26727-21apt-get07:59:520
18900998057,0cyclictest11062-21ssh09:25:490
18900998054,0cyclictest25992-21munin-run07:54:510
18900998049,0cyclictest29493-21rm11:41:110
18900997962,0cyclictest27122-21runrttasks11:35:030
18900997958,0cyclictest21950-21seq07:27:150
18900997953,0cyclictest4713-21ssh10:35:190
18900997950,0cyclictest21302-21awk11:19:590
18900997949,0cyclictest10120-21chrt09:23:520
18900997948,0cyclictest21546-21idleruntime-cro07:24:500
18900997948,0cyclictest11986-21rm10:55:090
18900997947,0cyclictest26028-21seq11:32:120
18900997859,0cyclictest5624-21ssh09:11:330
18900997859,0cyclictest2812-21sh11:56:180
18900997856,0cyclictest4322-21ssh10:34:130
18900997855,0cyclictest30107-21ssh10:15:510
18900997853,0cyclictest15875-21ssh11:05:320
18900997763,0cyclictest31825-21ssh11:47:330
18900997760,0cyclictest6796-21ssh10:40:380
18900997760,0cyclictest17601-21rm12:30:150
18900997759,0cyclictest24070-21rm11:26:590
18900997756,0cyclictest7106-21apt-get12:05:560
18900997754,0cyclictest15366-21ssh09:37:070
18900997752,0cyclictest342-21ssh10:23:400
18900997661,0cyclictest30254-21kworker/u2:508:39:350
18900997649,0cyclictest29155-21modprobe08:14:500
18900997638,0cyclictest9492-21ssh12:11:290
18900997560,0cyclictest18897-21cyclictest07:39:310
18900997559,0cyclictest29896-21sendmail08:19:510
18900997558,0cyclictest25069-21runrttasks07:48:260
18900997557,0cyclictest28416-21pluginstate08:09:530
18900997556,0cyclictest19805-21munin-node07:14:530
18900997555,0cyclictest26220-21ssh10:05:310
18900997555,0cyclictest22600-21ssh09:55:560
18900997554,0cyclictest13877-21ssh11:00:140
18900997553,0cyclictest18925-21ssh09:46:160
18900997549,0cyclictest26870-21runrttasks07:59:560
18900997549,0cyclictest19623-21munin-run07:14:500
18900997547,0cyclictest8330-21ssh10:45:170
18900997546,0cyclictest1712-21snmpd08:54:590
18900997454,0cyclictest20619-21ssh09:50:430
18900997358,0cyclictest22357-21grep07:29:530
18900997356,0cyclictest1649-21seq08:47:510
18900997350,0cyclictest4435-21seq09:06:240
18900997256,0cyclictest968-21seq08:43:200
18900997255,0cyclictest18897-21cyclictest08:34:220
18900997157,0cyclictest9-21ksoftirqd/008:24:310
18900997153,0cyclictest24291-21runrttasks07:43:030
18900997143,0cyclictest2654-21munin-plugin-st08:54:530
18900997055,0cyclictest30733-21sort08:24:550
18900997053,0cyclictest3685-21sshd09:01:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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