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2022-01-22 - 16:46

Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz, Linux 5.10.17-rt32 (Profile)

Latency plot of system in rack #0, slot #5
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 50 highest latencies:
System rack0slot5.osadl.org (updated Wed Jan 12, 2022 00:43:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27686819944718,429cyclictest0-21swapper/021:25:120
276873899420419,1cyclictest2954465-21kworker/u32:622:17:386
276872699420419,1cyclictest0-21swapper/1123:23:433
276872699419419,0cyclictest0-21swapper/1122:57:243
276872699419418,1cyclictest0-21swapper/1122:06:023
2768726994190,419cyclictest0-21swapper/1121:37:533
276872699418418,0cyclictest0-21swapper/1119:30:043
276872699418418,0cyclictest0-21swapper/1119:26:093
276871599418417,1cyclictest2817514-21kworker/u32:121:25:1215
276872699415414,1cyclictest2775579-21kworker/u32:819:45:463
276872699410409,1cyclictest2879401-21kworker/u32:221:19:523
276873899409409,0cyclictest0-21swapper/1423:27:406
276873899405405,0cyclictest0-21swapper/1423:08:326
276868899401400,1cyclictest2901596-21kworker/u32:922:39:148
276871099385384,1cyclictest2867823-21kworker/8:021:25:1214
276873099382382,0cyclictest0-21swapper/1221:25:124
276872399382382,0cyclictest0-21swapper/1022:39:142
276868199374374,0cyclictest0-21swapper/022:39:140
276871599370369,1cyclictest50050irq/164-i91523:11:1615
276868899360358,2cyclictest1694797-21Xorg19:11:048
276869699357357,0cyclictest20450irq/129-xhci_hc22:17:3810
276868899353352,1cyclictest2781444-21kworker/u32:919:36:348
276869699341341,0cyclictest20450irq/129-xhci_hc22:31:3010
276869699341341,0cyclictest20450irq/129-xhci_hc19:36:3410
276872399340340,0cyclictest0-21swapper/1019:11:042
276872399334334,0cyclictest0-21swapper/1019:36:342
27679112320301,11sleep50-21swapper/519:04:2711
276873399318318,0cyclictest0-21swapper/1322:31:305
276868899316315,1cyclictest0-21swapper/223:11:178
276871099311310,1cyclictest2961088-21kworker/8:122:39:1414
276870099308307,1cyclictest2901596-21kworker/u32:922:31:3011
276872399298298,0cyclictest1694797-21Xorg23:11:172
276869199298298,0cyclictest0-21swapper/319:09:059
276868699298298,0cyclictest0-21swapper/123:11:171
276873099294292,1cyclictest1724406-21Web10:06:594
276872699292291,1cyclictest1694797-21Xorg19:09:053
276868199292290,1cyclictest1072-21lldpd00:36:270
2768742992910,282cyclictest0-21swapper/1523:00:447
2768733992910,282cyclictest0-21swapper/1320:53:265
2768733992910,282cyclictest0-21swapper/1320:53:265
276871099291290,1cyclictest1694797-21Xorg19:09:0914
276869199290289,1cyclictest2990004-21kworker/u32:223:11:169
276873399289282,7cyclictest1694797-21Xorg19:17:255
2768733992880,282cyclictest0-21swapper/1321:54:105
276873399287281,1cyclictest1694797-21Xorg00:32:235
2768733992870,0cyclictest0-21swapper/1322:46:185
276869199287281,4cyclictest1694797-21Xorg23:55:339
276868899287284,3cyclictest1694797-21Xorg21:46:368
276873399286280,1cyclictest1694797-21Xorg19:30:395
276873099286283,3cyclictest1695093-21gnome-shell19:44:584
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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