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2023-12-10 - 17:03
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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 rack0slot6.osadl.org (updated Sun Dec 10, 2023 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24796399390390,0cyclictest0-21swapper/621:15:5912
24796399390390,0cyclictest0-21swapper/620:21:5912
24796399390390,0cyclictest0-21swapper/620:21:5912
2475832374368,4sleep70-21swapper/719:09:0413
2474052367330,13sleep30-21swapper/319:06:519
2474852366328,13sleep120-21swapper/1219:07:484
2444952362321,14sleep50-21swapper/519:05:1711
2473452360354,4sleep90-21swapper/919:06:0915
2476382353332,14sleep110-21swapper/1119:09:403
2474812349329,13sleep80-21swapper/819:07:4414
2474062349329,13sleep40-21swapper/419:06:5210
2473982349328,14sleep130-21swapper/1319:06:455
2474452348328,13sleep150-21swapper/1519:07:197
2473402346325,14sleep60-21swapper/619:06:0612
2475982345324,14sleep10-21swapper/119:09:141
2473782345324,14sleep140-21swapper/1419:06:306
2474022343323,14sleep00-21swapper/019:06:480
2473742343323,13sleep100-21swapper/1019:06:262
2474242341321,13sleep20-21swapper/219:07:068
24795699328328,0cyclictest0-21swapper/421:44:5910
247967993090,1cyclictest0-21swapper/723:35:5813
247967993090,1cyclictest0-21swapper/723:35:5813
24794299308304,3cyclictest2557161-21Xorg20:11:590
24797399307304,3cyclictest2557161-21Xorg23:36:5915
24797399307304,3cyclictest2557161-21Xorg23:36:5915
24797399307304,3cyclictest2557161-21Xorg22:48:0015
24799799306304,2cyclictest2557238-21gnome-shell23:39:587
24799799306304,2cyclictest2557238-21gnome-shell23:39:587
24799799306304,2cyclictest2557238-21gnome-shell23:13:587
24799799306304,2cyclictest2557238-21gnome-shell23:05:587
24797099306304,2cyclictest2557238-21gnome-shell23:40:5814
24794299306304,2cyclictest2557238-21gnome-shell19:51:580
24799799305303,2cyclictest2557238-21gnome-shell23:17:587
24797399305302,3cyclictest2557161-21Xorg23:20:5915
247970993050,305cyclictest0-21swapper/823:20:5814
247970993050,305cyclictest0-21swapper/823:14:5814
247970993050,305cyclictest0-21swapper/823:02:5814
247970993050,1cyclictest0-21swapper/823:36:5814
247970993050,1cyclictest0-21swapper/823:36:5814
24796799305304,1cyclictest0-21swapper/723:11:5813
247967993050,305cyclictest0-21swapper/723:29:5813
24794299305303,2cyclictest2557238-21gnome-shell20:05:580
24794299305303,2cyclictest2557238-21gnome-shell20:01:580
247970993040,304cyclictest0-21swapper/823:34:5814
247970993040,304cyclictest0-21swapper/823:34:5814
247967993040,304cyclictest0-21swapper/723:07:5813
24794299304302,2cyclictest2557238-21gnome-shell21:05:580
24794299304302,2cyclictest2557238-21gnome-shell19:41:580
24797399303297,3cyclictest2557161-21Xorg23:15:5915
24794299303301,2cyclictest2557238-21gnome-shell19:59:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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