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2023-09-24 - 03:39

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 
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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 100 highest latencies:
System rack0slot6s.osadl.org (updated Fri Sep 15, 2023 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
659920960,73pipewire-pulse0-21swapper/1919:07:4811
659920810,59pipewire-pulse0-21swapper/919:08:0519
31672410800,54AudioIP~allback0-21swapper/1819:09:4610
4088162997618,34cyclictest0-21swapper/400:34:4914
31672410760,52AudioIP~allback0-21swapper/819:06:3818
4088177997513,61cyclictest1741930-21CPU19
408816099757,32cyclictest0-21swapper/321:19:5013
22516588730,71virt-manager0-21swapper/1619:06:168
22515888720,70virt-manager0-21swapper/1319:07:505
659920710,70pipewire-pulse0-21swapper/719:09:2617
22515888710,69virt-manager0-21swapper/319:09:3013
659920700,68pipewire-pulse0-21swapper/619:06:1216
391489210700,68AudioIP~allback0-21swapper/019:06:030
1304462700,0sleep140-21swapper/1423:31:136
391489210670,66AudioIP~allback0-21swapper/1019:07:462
391489210650,62AudioIP~allback0-21swapper/1119:08:503
4088177996235,26cyclictest0-21swapper/921:09:5519
391489210610,60AudioIP~allback0-21swapper/119:08:421
4088181995854,0cyclictest0-21swapper/1020:54:332
659920570,56pipewire-pulse0-21swapper/1719:06:599
4088177995651,3cyclictest1741930-21CPU19
4088177995539,15cyclictest0-21swapper/920:33:0219
4088192995326,26cyclictest0-21swapper/1423:00:276
658320510,50pipewire0-21swapper/1419:09:006
4088177995139,11cyclictest1741930-21CPU19
4088162995137,13cyclictest1741930-21CPU14
658320490,47pipewire0-21swapper/1219:05:114
4088177994840,8cyclictest0-21swapper/900:11:0619
4088192994714,32cyclictest0-21swapper/1422:10:036
4088192994712,2cyclictest3066513-21thunderbird23:50:556
4088171994718,0cyclictest0-21swapper/723:50:5517
4088168994544,1cyclictest0-21swapper/619:44:0316
408817799441,0cyclictest0-21swapper/919:23:5519
408817199447,36cyclictest811irq_work/722:04:5917
408816099440,33cyclictest0-21swapper/300:06:0513
4088181994337,5cyclictest112-21ksoftirqd/1021:09:392
659920420,40pipewire-pulse3534482-21Isolated17:34:349
658320420,23pipewire0-21swapper/621:49:5216
4088198994220,19cyclictest1360043-21CPU8
4088198994218,23cyclictest1661ktimers/1623:35:518
4088181994213,3cyclictest112-21ksoftirqd/1023:20:462
4088177994221,21cyclictest1741930-21CPU19
408817799420,0cyclictest0-21swapper/922:15:3119
4088174994242,0cyclictest2917-21snmpd20:29:1018
4088171994214,27cyclictest811irq_work/723:08:5817
4088162994240,1cyclictest73083-40tracker-miner-f22:30:0914
658320410,40pipewire0-21swapper/1519:08:427
4088198994113,27cyclictest0-21swapper/1621:34:478
408819599410,41cyclictest1561rcuc/1522:05:027
408819299410,34cyclictest3066651-21Compositor22:55:116
4088181994130,10cyclictest1741930-21CPU2
4088181994113,27cyclictest1101rcuc/1021:19:442
4088177994115,23cyclictest0-21swapper/919:39:0219
4088177994114,27cyclictest0-21swapper/921:19:4319
4088177994111,29cyclictest0-21swapper/920:54:3119
4088171994114,27cyclictest811irq_work/720:58:4617
4088171994114,27cyclictest811irq_work/700:31:1617
4088171994114,1cyclictest811irq_work/723:55:5717
408816899417,1cyclictest96102-21worker22:55:2516
4088162994113,28cyclictest0-21swapper/400:11:0714
4088195994036,3cyclictest0-21swapper/1520:07:497
4088192994032,8cyclictest0-21swapper/1423:55:596
408818799403,35cyclictest3489614-21CPU4
4088183994031,0cyclictest0-21swapper/1123:03:543
4088177994039,0cyclictest0-21swapper/922:10:0419
4088177994038,1cyclictest4092199-40tracker-miner-f19:13:5119
4088171994013,27cyclictest811irq_work/723:10:3917
4088171994013,27cyclictest811irq_work/720:29:2117
4088171994013,27cyclictest811irq_work/700:39:5917
408817199400,0cyclictest0-21swapper/720:54:3217
4088156994038,0cyclictest0-21swapper/223:10:3712
658320390,38pipewire0-21swapper/519:07:4915
4088198993926,9cyclictest0-21swapper/1619:54:078
4088198993926,9cyclictest0-21swapper/1619:54:078
4088195993936,2cyclictest1561rcuc/1519:54:087
4088195993936,2cyclictest1561rcuc/1519:54:087
4088195993934,4cyclictest0-21swapper/1521:04:367
4088195993916,22cyclictest1741930-21CPU7
4088192993932,7cyclictest0-21swapper/1400:01:026
408819299390,33cyclictest1741930-21CPU6
408818399390,32cyclictest0-21swapper/1119:23:403
408817799397,7cyclictest1741930-21CPU19
4088177993938,1cyclictest103-21ksoftirqd/921:55:4619
4088177993935,4cyclictest1741930-21CPU19
408817799391,0cyclictest0-21swapper/922:03:1219
4088171993932,7cyclictest0-21swapper/719:32:5917
4088171993912,27cyclictest811irq_work/722:54:5917
4088171993912,27cyclictest811irq_work/722:10:1117
4088171993912,27cyclictest811irq_work/720:39:2617
4088171993912,27cyclictest811irq_work/720:34:2217
408817199390,32cyclictest0-21swapper/719:28:5817
4088160993932,6cyclictest1741930-21CPU13
4088160993931,7cyclictest15229-40tracker-miner-f21:24:4413
22515888390,0virt-manager0-21swapper/1822:10:0210
408820899380,29cyclictest0-21swapper/1921:57:5911
408820299383,34cyclictest658320pipewire23:41:549
4088202993833,2cyclictest1741930-21CPU9
4088195993837,1cyclictest1561rcuc/1519:44:037
4088192993832,6cyclictest0-21swapper/1421:44:536
408819299380,36cyclictest0-21swapper/1419:49:076
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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