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2022-07-05 - 12:43

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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x86 Intel Core i9-10900K @3700 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of shadow in rack #0, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 Tue Jul 05, 2022 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134092699427427,0cyclictest64950irq/154-i91519:39:2413
134096499426425,1cyclictest1542875-21kworker/u40:223:09:236
1340964994260,0cyclictest0-21swapper/1400:09:176
1340964994260,0cyclictest0-21swapper/1400:02:536
134098399423423,0cyclictest1456401-21turbostat21:19:5611
134098399422422,0cyclictest1383116-21turbostat19:59:5511
134098399421421,0cyclictest1534160-21turbostat22:44:5511
134094799421420,1cyclictest1552432-21turbostat23:00:0019
134094799420417,3cyclictest1506737-21turbostat22:10:0019
134096899419419,0cyclictest0-21swapper/1523:25:537
134096899419419,0cyclictest0-21swapper/1523:25:537
134096099419417,2cyclictest0-21swapper/1322:59:555
134094799419419,0cyclictest1428891-21turbostat20:45:0019
134094799419419,0cyclictest1428891-21turbostat20:45:0019
134094799419418,1cyclictest0-21swapper/922:29:5519
134096499418418,0cyclictest0-21swapper/1423:13:236
134096099418418,0cyclictest0-21swapper/1319:39:245
134094799418417,1cyclictest1396881-21turbostat20:10:0019
134096899417417,0cyclictest0-21swapper/1523:31:537
134096899417417,0cyclictest0-21swapper/1523:31:537
134098399416416,0cyclictest1442621-21turbostat21:04:5511
134094799415415,0cyclictest0-21swapper/923:19:5519
134094799413412,1cyclictest0-21swapper/923:59:5519
134093999413413,0cyclictest0-21swapper/722:56:2717
134098399412411,1cyclictest0-21swapper/1920:05:0011
134093699411410,1cyclictest1542875-21kworker/u40:223:46:2316
134093699408408,0cyclictest0-21swapper/623:58:5316
134092999408408,0cyclictest0-21swapper/422:00:2114
134094799407407,0cyclictest1424341-21turbostat20:40:0019
134094799407407,0cyclictest1424341-21turbostat20:40:0019
134094799407406,1cyclictest0-21swapper/920:49:5519
134098399406404,2cyclictest0-21swapper/1921:50:0011
134094799406406,0cyclictest0-21swapper/900:34:5519
134094799405405,0cyclictest1515886-21turbostat22:20:0019
134093699405404,1cyclictest1330779-21kworker/u40:319:18:0116
134094799402401,1cyclictest1383116-21turbostat19:55:0019
134094799402399,3cyclictest1350943-21turbostat19:20:0019
134094799401401,0cyclictest1479248-21turbostat21:40:0119
134094799401401,0cyclictest0-21swapper/922:24:5519
134092999401400,1cyclictest1598228-21kworker/u40:300:19:5114
134092999401400,1cyclictest1542875-21kworker/u40:223:23:5314
134098399400400,0cyclictest1561633-21turbostat23:14:5511
134092999400399,1cyclictest1598228-21kworker/u40:300:09:1714
134092999400399,1cyclictest1419307-21kworker/u40:322:49:4114
134092999399398,1cyclictest1598228-21kworker/u40:300:02:5314
134098399398394,3cyclictest1626255-21perf00:20:0011
134093499398397,1cyclictest1524546-21kworker/u40:022:51:1715
134098399397396,1cyclictest1488381-21turbostat21:54:5511
134098399397395,2cyclictest1626246-21turbostat00:24:5511
134092999396396,0cyclictest0-21swapper/423:09:2314
134098399394392,2cyclictest1340500-21turbostat19:14:5511
134094799394394,0cyclictest0-21swapper/919:24:5519
134098399393393,0cyclictest1492960-21turbostat21:59:5511
134094799393392,1cyclictest1557063-21turbostat23:05:0119
134094499393393,0cyclictest0-21swapper/822:51:1718
134094799392392,0cyclictest1589030-21turbostat23:40:0019
134094799392392,0cyclictest0-21swapper/922:14:5519
134094799391390,1cyclictest764900-40tracker-miner-f22:54:5519
134096899390389,1cyclictest1330779-21kworker/u40:319:19:307
134098399389387,2cyclictest1451827-21turbostat21:14:5611
134092999389388,1cyclictest1542875-21kworker/u40:223:13:2314
134094799388388,0cyclictest0-21swapper/921:24:5619
134094499388388,0cyclictest0-21swapper/822:00:2118
134093499388387,1cyclictest1570839-21kworker/u40:123:25:5315
134093499388387,1cyclictest1570839-21kworker/u40:123:25:5315
134097199387387,0cyclictest0-21swapper/1623:46:238
134094799387386,1cyclictest1401457-21turbostat20:15:0019
134098399386386,0cyclictest1538710-21turbostat22:49:5511
134098399386385,1cyclictest0-21swapper/1919:45:0011
134098399386385,1cyclictest0-21swapper/1900:05:0011
134097199386385,1cyclictest1570839-21kworker/u40:123:58:538
134094799386386,0cyclictest0-21swapper/920:59:5519
134094499386386,0cyclictest0-21swapper/821:35:5118
134093499386385,1cyclictest1542875-21kworker/u40:223:31:5415
134093499386385,1cyclictest1542875-21kworker/u40:223:31:5315
134094799385385,0cyclictest0-21swapper/920:29:5519
134098399384384,0cyclictest0-21swapper/1923:10:0011
134094499383383,0cyclictest0-21swapper/823:25:5318
134094499383383,0cyclictest0-21swapper/823:25:5318
134094499383383,0cyclictest0-21swapper/819:59:0918
134097199382382,0cyclictest0-21swapper/1619:18:018
134098399381380,1cyclictest1433467-21turbostat20:54:5511
134098399381379,2cyclictest1479248-21turbostat21:44:5611
134098399381379,1cyclictest1465550-21munin-run21:25:0111
134094799381380,1cyclictest1612247-21turbostat00:09:5519
134094499381381,0cyclictest0-21swapper/823:46:2318
134094499381381,0cyclictest0-21swapper/823:31:5318
134094499381381,0cyclictest0-21swapper/823:31:5318
134094499381381,0cyclictest0-21swapper/823:23:5318
134094499381381,0cyclictest0-21swapper/820:45:5518
134094499381381,0cyclictest0-21swapper/800:19:5118
134094499380380,0cyclictest0-21swapper/823:11:2318
134094499380380,0cyclictest0-21swapper/800:09:1718
134094499380380,0cyclictest0-21swapper/800:04:5318
134094799379377,2cyclictest1630818-21turbostat00:25:0019
134094499379379,0cyclictest764900-40tracker-miner-f23:58:5318
134094499379379,0cyclictest0-21swapper/822:56:2718
134094499379379,0cyclictest0-21swapper/822:49:4118
134094499379379,0cyclictest0-21swapper/820:07:1718
134094499379378,1cyclictest1497203-21kworker/u40:221:58:5118
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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