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2023-01-29 - 15:51

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system 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 50 highest latencies:
System rack0slot6.osadl.org (updated Sun Jan 29, 2023 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77646199403403,0cyclictest0-21swapper/1423:28:596
77646199402402,0cyclictest0-21swapper/1422:30:596
77646199402402,0cyclictest0-21swapper/1421:33:596
7760032385365,14sleep40-21swapper/419:08:5710
7756502364322,14sleep140-21swapper/1419:05:546
7760972362345,11sleep00-21swapper/019:09:410
7758772354335,13sleep10-21swapper/119:07:501
7757142346310,13sleep50-21swapper/519:06:1811
7756492346326,13sleep130-21swapper/1319:05:535
7759812345324,14sleep30-21swapper/319:08:409
7757492345327,12sleep120-21swapper/1219:06:404
7759712343322,14sleep100-21swapper/1019:08:312
7759182343322,14sleep20-21swapper/219:08:078
7758862343322,14sleep70-21swapper/719:07:5613
7756082340318,15sleep60-21swapper/619:05:3012
7760882336316,13sleep80-21swapper/819:09:3314
7757462336316,13sleep90-21swapper/919:06:3715
7727962336315,14sleep150-21swapper/1519:05:077
776461993120,1cyclictest0-21swapper/1421:03:596
77643399307304,3cyclictest3567995-21Xorg23:23:5913
776458993060,306cyclictest0-21swapper/1323:56:595
776458993060,1cyclictest0-21swapper/1320:32:005
776414993060,304cyclictest0-21swapper/200:20:598
77641099306304,2cyclictest3568073-21gnome-shell23:04:581
77641099306304,2cyclictest3568073-21gnome-shell23:04:581
776458993050,305cyclictest0-21swapper/1320:57:595
77643399305302,3cyclictest3567995-21Xorg22:04:5913
776425993050,305cyclictest0-21swapper/520:27:5811
776425993050,1cyclictest0-21swapper/520:31:5811
776421993050,305cyclictest0-21swapper/422:47:5810
77641099305303,2cyclictest3568073-21gnome-shell23:06:581
77641099305303,2cyclictest3568073-21gnome-shell23:06:581
77641099305303,2cyclictest3568073-21gnome-shell22:09:581
776410993050,305cyclictest0-21swapper/122:48:581
77646699304302,2cyclictest3568073-21gnome-shell23:46:587
77642599304302,2cyclictest3568073-21gnome-shell19:52:5811
77642599304302,2cyclictest3568073-21gnome-shell19:52:5811
77642199304301,3cyclictest3568073-21gnome-shell23:13:5910
776421993040,304cyclictest0-21swapper/419:42:5810
77641099304302,2cyclictest3568073-21gnome-shell22:27:581
77642599303299,4cyclictest3567995-21Xorg22:56:5911
77642199303301,2cyclictest3567995-21Xorg20:46:5910
77640699303301,2cyclictest0-21swapper/023:54:590
77640699303301,2cyclictest0-21swapper/023:49:590
77645899302301,1cyclictest0-21swapper/1320:45:595
77645899302300,2cyclictest0-21swapper/1321:32:595
77642599302300,2cyclictest3568073-21gnome-shell20:04:5811
77642599302300,2cyclictest3568073-21gnome-shell19:33:5811
77641099302301,1cyclictest0-21swapper/121:06:581
77641099302300,2cyclictest3568073-21gnome-shell23:16:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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