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2025-05-13 - 12:16

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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 50 highest latencies:
System rack0slot6s.osadl.org (updated Tue May 13, 2025 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2150811996823,2cyclictest312199-21CPU1
2150811996823,2cyclictest312199-21CPU1
2150830995655,1cyclictest2175196-40tracker-miner-f19:31:5917
2150830995655,0cyclictest0-21swapper/720:32:0117
2150830995653,1cyclictest0-21swapper/720:39:3417
2150811995526,1cyclictest1527634-21Isolated13:43:551
2150818995452,1cyclictest2252430-40tracker-miner-f20:54:5913
2150818995452,1cyclictest2252430-40tracker-miner-f20:54:5813
2150814995412,1cyclictest1526854-21WebExtensions20:49:5812
2150814995412,1cyclictest1526854-21WebExtensions20:49:5812
2150866995341,12cyclictest0-21swapper/1922:57:1711
2150847995321,31cyclictest0-21swapper/1319:29:595
215083099521,2cyclictest312198-21CPU17
2150866995150,0cyclictest0-21swapper/1920:32:0211
2150866995148,1cyclictest0-21swapper/1920:39:3411
2150811995039,10cyclictest1527307-21firefox20:33:311
2150811995020,29cyclictest0-21swapper/121:29:041
215028225047,2sleep50-21swapper/519:09:5615
214990125045,3sleep60-21swapper/619:07:1716
215086699490,48cyclictest0-21swapper/1919:12:4711
2150833994943,4cyclictest2573300-21CPU18
215086699480,47cyclictest0-21swapper/1922:34:4011
215086599481,45cyclictest312199-21CPU10
2150830994846,1cyclictest0-21swapper/719:52:5917
2150818994845,2cyclictest1527660-21StyleThread#319:12:4713
215084299479,1cyclictest0-21swapper/1119:31:073
215083599470,1cyclictest2348823-40tracker-miner-f22:33:5619
2150827994745,1cyclictest2324670-40tracker-miner-f22:09:2616
215082199470,36cyclictest312198-21CPU14
215082199470,36cyclictest312198-21CPU14
2150861994644,1cyclictest185050irq/149-eno100:14:589
2150833994645,0cyclictest0-21swapper/820:54:5918
2150833994645,0cyclictest0-21swapper/820:54:5918
215083399462,42cyclictest2573300-21CPU18
2150830994645,1cyclictest2208918-40tracker-miner-f20:07:3417
215083099460,46cyclictest0-21swapper/700:10:3417
2150811994615,31cyclictest0-21swapper/119:32:571
2150866994515,30cyclictest0-21swapper/1923:20:0811
215084799451,3cyclictest1525859-21thunderbird20:41:375
2150842994518,26cyclictest1251rcuc/1120:24:593
2150842994510,35cyclictest0-21swapper/1123:13:103
215083599450,44cyclictest2382659-40tracker-miner-f23:09:3219
215083599450,44cyclictest0-21swapper/921:02:5419
215083599450,44cyclictest0-21swapper/920:47:3719
215083599450,44cyclictest0-21swapper/920:47:3619
2150833994543,1cyclictest0-21swapper/820:39:3418
215083399450,44cyclictest1527337-21Socket13:43:5518
215083399450,44cyclictest1527337-21Socket13:43:5518
2150830994516,1cyclictest312198-21CPU17
214974424540,3sleep180-21swapper/1819:06:2910
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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