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2022-08-09 - 07:31

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #5

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 i9-9900K @3600 MHz, Linux 5.19.0-rc3-rt4 (Profile)

Latency plot of shadow 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 100 highest latencies:
System rack0slot5s.osadl.org (updated Tue Aug 09, 2022 00:46:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2830042370349,14sleep00-21swapper/019:09:350
2800332345306,13sleep100-21swapper/1019:05:122
2827912340319,14sleep40-21swapper/419:06:2610
2829132339301,13sleep30-21swapper/319:08:189
2829402335314,14sleep110-21swapper/1119:08:423
2828772333312,14sleep10-21swapper/119:07:431
2800302333293,13sleep70-21swapper/719:05:0913
2828202332310,14sleep140-21swapper/1419:06:526
2829542331310,14sleep80-21swapper/819:08:5514
2830182328307,14sleep130-21swapper/1319:09:485
2829802328310,11sleep120-21swapper/1219:09:154
2829832326304,14sleep150-21swapper/1519:09:187
2827412326305,14sleep60-21swapper/619:05:4012
2830332325303,15sleep90-21swapper/919:10:0015
2827542322301,14sleep20-21swapper/219:05:528
28333299296295,1cyclictest0-21swapper/820:42:3814
28332499277276,1cyclictest130099-21kworker/0:1+pm00:35:290
28333299271269,1cyclictest456768-21ntpq23:00:2214
28333299266265,1cyclictest0-21swapper/819:56:5014
28333299264261,2cyclictest419794-21open_files22:10:2314
28333299262261,1cyclictest0-21swapper/820:12:0814
28333299262260,1cyclictest449357-21ntpq22:50:2014
28333299261260,1cyclictest0-21swapper/800:00:0914
28333299261260,1cyclictest0-21swapper/800:00:0914
28333299261259,1cyclictest0-21swapper/819:25:0014
28332499261260,1cyclictest130099-21kworker/0:1+pm20:42:380
28333299260260,0cyclictest0-21swapper/820:05:2414
28333299259259,0cyclictest0-21swapper/822:55:2114
28333299258257,1cyclictest0-21swapper/800:20:1614
28333299257256,1cyclictest0-21swapper/823:45:2314
28333299256256,0cyclictest0-21swapper/823:35:2014
28333299254252,1cyclictest0-21swapper/823:50:1514
28333299252252,0cyclictest0-21swapper/819:45:2114
28333299252251,1cyclictest0-21swapper/822:15:2014
28333299250250,0cyclictest0-21swapper/821:50:1614
28333299249249,0cyclictest0-21swapper/819:15:0214
28333299249249,0cyclictest0-21swapper/800:10:2414
28333299249248,1cyclictest0-21swapper/820:20:1814
28333299248248,0cyclictest0-21swapper/823:30:0214
28333299248248,0cyclictest0-21swapper/823:28:2814
28333299248246,1cyclictest426323-21diskstats22:20:1414
28333299247247,0cyclictest0-21swapper/823:40:2014
28333299247247,0cyclictest0-21swapper/822:40:2714
28333299247247,0cyclictest0-21swapper/821:20:1714
28333299247247,0cyclictest0-21swapper/820:50:1614
28333299247247,0cyclictest0-21swapper/820:50:1614
28333299247247,0cyclictest0-21swapper/819:35:1414
28333299246246,0cyclictest0-21swapper/823:20:2214
28333299246246,0cyclictest0-21swapper/822:45:1814
28333299246246,0cyclictest0-21swapper/822:39:2214
28333299246246,0cyclictest0-21swapper/821:15:1614
28333299246246,0cyclictest0-21swapper/800:15:1614
28333299246245,1cyclictest411510-21df22:00:1714
28333299246245,1cyclictest0-21swapper/821:30:2214
28333299245245,0cyclictest0-21swapper/822:30:2414
28333299245245,0cyclictest0-21swapper/821:45:2314
28333299244244,0cyclictest0-21swapper/821:44:3114
28333299244244,0cyclictest0-21swapper/800:05:2514
28333299244244,0cyclictest0-21swapper/800:05:2514
28333299244243,1cyclictest0-21swapper/823:55:1414
28333299243243,0cyclictest0-21swapper/820:46:3914
28333299243242,1cyclictest0-21swapper/820:35:3214
28333299242242,0cyclictest0-21swapper/823:12:3514
28333299242242,0cyclictest0-21swapper/823:05:1914
28333299242242,0cyclictest0-21swapper/822:25:2114
28333299242242,0cyclictest0-21swapper/821:25:2314
28333299242242,0cyclictest0-21swapper/820:04:2514
28333299242242,0cyclictest0-21swapper/819:40:1814
28333299242242,0cyclictest0-21swapper/819:25:2314
28333299242242,0cyclictest0-21swapper/800:30:4014
28333299242242,0cyclictest0-21swapper/800:30:0114
28333299242241,1cyclictest409338-21sed21:55:2614
28333299242241,1cyclictest0-21swapper/822:05:2214
28333299241241,0cyclictest0-21swapper/823:18:3414
28333299241241,0cyclictest0-21swapper/821:00:0214
28333299241240,1cyclictest0-21swapper/819:51:3014
28333299240239,1cyclictest0-21swapper/821:05:2114
28333299240238,1cyclictest0-21swapper/820:25:2314
28333299239239,0cyclictest0-21swapper/820:30:1314
28333299239239,0cyclictest0-21swapper/800:35:2314
28333299239238,1cyclictest0-21swapper/821:35:0314
28333299239238,1cyclictest0-21swapper/821:10:2214
28333299239238,1cyclictest0-21swapper/820:19:1714
28333299238238,0cyclictest0-21swapper/819:34:2114
28333299238237,1cyclictest0-21swapper/820:55:1814
28333299237237,0cyclictest0-21swapper/819:13:3914
28332499236234,1cyclictest130099-21kworker/0:1+pm23:00:220
28332499233231,1cyclictest130099-21kworker/0:1+pm19:56:500
28333799230226,2cyclictest0-21swapper/1319:10:455
28333399229226,0cyclictest0-21swapper/919:10:4415
28332499229227,1cyclictest130099-21kworker/0:1+pm22:10:230
28332499227226,1cyclictest130099-21kworker/0:1+pm22:50:200
28332499227226,1cyclictest130099-21kworker/0:1+pm20:12:080
28332499227225,2cyclictest130099-21kworker/0:1+pm00:00:090
28332499227225,2cyclictest130099-21kworker/0:1+pm00:00:090
28332499226225,1cyclictest130099-21kworker/0:1+pm20:05:240
28332499226224,1cyclictest130099-21kworker/0:1+pm19:25:010
28332499225224,1cyclictest130099-21kworker/0:1+pm22:55:210
28332499223222,1cyclictest130099-21kworker/0:1+pm00:20:160
28332499222221,1cyclictest130099-21kworker/0:1+pm23:45:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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