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2023-12-11 - 23:03

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #7

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 highest latencies:
System rack4slot7s.osadl.org (updated Mon Dec 11, 2023 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139972506438,46sleep00-21swapper/007:05:550
143152484407,60sleep10-21swapper/107:09:261
296482730,6chrt29652-21unixbench_multi07:45:161
162632620,1sleep00-21swapper/008:35:130
166302560,4sleep128875-21diskmemload11:25:041
131522480,3sleep013146-21needreboot09:51:240
1451399422,11cyclictest0-21swapper/108:10:071
183422310,1sleep10-21swapper/110:05:021
1451399305,16cyclictest28875-21diskmemload12:10:031
1451399294,8cyclictest0-21swapper/112:34:571
38402270,2chrt0-21swapper/112:15:131
1451399272,17cyclictest28875-21diskmemload10:29:571
1451299279,7cyclictest12-21ksoftirqd/010:55:080
285622260,1sleep00-21swapper/010:30:120
1451299267,8cyclictest12-21ksoftirqd/011:15:100
1451299266,7cyclictest12-21ksoftirqd/012:15:030
1451299262,19cyclictest188-21systemd-journal08:55:020
1451299257,7cyclictest12-21ksoftirqd/007:50:080
1451299257,6cyclictest12-21ksoftirqd/010:25:020
1451299256,8cyclictest12-21ksoftirqd/011:05:090
1451299256,8cyclictest12-21ksoftirqd/007:24:120
1451299256,7cyclictest12-21ksoftirqd/011:20:040
1451299256,7cyclictest12-21ksoftirqd/008:45:130
1451299253,8cyclictest12-21ksoftirqd/009:10:130
1451299253,8cyclictest12-21ksoftirqd/008:20:130
1451299252,10cyclictest12-21ksoftirqd/012:20:130
1451299252,10cyclictest12-21ksoftirqd/012:20:130
1451299246,7cyclictest12-21ksoftirqd/012:25:140
1451299246,7cyclictest12-21ksoftirqd/011:00:090
1451299246,7cyclictest12-21ksoftirqd/010:40:110
1451299246,7cyclictest12-21ksoftirqd/009:35:000
1451299246,7cyclictest12-21ksoftirqd/008:15:200
1451299246,7cyclictest12-21ksoftirqd/007:15:060
1451299246,6cyclictest12-21ksoftirqd/011:35:040
1451299246,6cyclictest12-21ksoftirqd/010:15:080
1451299244,9cyclictest12-21ksoftirqd/008:00:160
1451299244,8cyclictest12-21ksoftirqd/012:00:130
1451299241,7cyclictest12-21ksoftirqd/011:10:030
1451299236,6cyclictest12-21ksoftirqd/010:10:050
1451299236,6cyclictest12-21ksoftirqd/009:14:420
1451299236,4cyclictest12-21ksoftirqd/009:29:050
1451299235,7cyclictest12-21ksoftirqd/012:30:060
1451299235,6cyclictest12-21ksoftirqd/007:55:060
1451299233,5cyclictest12-21ksoftirqd/007:37:240
1451299232,14cyclictest28875-21diskmemload10:49:570
1451299231,7cyclictest12-21ksoftirqd/008:05:180
1451299230,7cyclictest12-21ksoftirqd/012:35:010
1451299230,7cyclictest12-21ksoftirqd/012:10:120
1451299230,7cyclictest12-21ksoftirqd/011:29:590
1451399227,13cyclictest22-1ksoftirqd/110:13:131
1451399223,12cyclictest34850irq/91-enp1s0-r09:54:571
1451399221,5cyclictest0-21swapper/109:22:351
1451399220,6cyclictest0-21swapper/107:56:351
1451299224,7cyclictest12-21ksoftirqd/011:55:030
1451299224,7cyclictest12-21ksoftirqd/011:40:060
1451299224,5cyclictest131rcuc/009:46:440
1451299223,8cyclictest12-21ksoftirqd/008:30:140
1451299223,8cyclictest12-21ksoftirqd/007:40:100
1451299223,6cyclictest12-21ksoftirqd/009:05:110
1451299221,9cyclictest12-21ksoftirqd/009:40:060
1451299221,7cyclictest12-21ksoftirqd/012:05:100
1451299221,7cyclictest12-21ksoftirqd/007:25:110
1451299221,6cyclictest12-21ksoftirqd/011:45:070
14512992214,6cyclictest5875-21diskstats08:10:110
14512992214,6cyclictest14993-21tune2fs07:10:070
1451299220,7cyclictest23838-21aten2_r4power_p10:20:020
1451299220,7cyclictest12-21ksoftirqd/009:30:040
1451299220,7cyclictest12-21ksoftirqd/009:00:090
1451299220,7cyclictest12-21ksoftirqd/008:50:140
1451299220,7cyclictest12-21ksoftirqd/007:30:110
1451399217,12cyclictest6397-21awk09:34:381
1451399214,8cyclictest0-21swapper/110:19:591
1451399214,7cyclictest0-21swapper/108:30:011
1451399211,5cyclictest0-21swapper/109:50:111
1451399210,5cyclictest0-21swapper/108:23:351
1451299216,7cyclictest12-21ksoftirqd/010:08:520
1451299213,8cyclictest12-21ksoftirqd/008:40:120
1451299213,5cyclictest12-21ksoftirqd/009:24:390
1451299213,4cyclictest12-21ksoftirqd/009:55:100
1451299212,8cyclictest12-21ksoftirqd/010:44:590
1451299212,8cyclictest12-21ksoftirqd/010:35:130
1451299211,8cyclictest12-21ksoftirqd/011:24:580
1451299211,7cyclictest12-21ksoftirqd/011:50:080
1451299211,7cyclictest12-21ksoftirqd/010:00:050
1451299210,7cyclictest12-21ksoftirqd/008:25:010
108472210,3sleep110828-21fschecks_time09:45:021
1451399209,9cyclictest23640-21hostname08:55:231
1451399205,7cyclictest0-21swapper/110:49:561
1451399204,7cyclictest0-21swapper/110:39:581
1451399202,13cyclictest823-21apt-get10:44:591
1451399202,11cyclictest0-21swapper/110:54:571
1451399201,4cyclictest0-21swapper/111:29:491
1451399201,4cyclictest0-21swapper/108:25:261
14513992011,7cyclictest22829-21snmpd12:09:301
14513992010,7cyclictest26483-21awk10:25:131
1451399200,5cyclictest0-21swapper/112:03:311
1451399200,5cyclictest0-21swapper/111:34:421
1451399200,5cyclictest0-21swapper/109:35:461
1451399200,5cyclictest0-21swapper/108:48:561
1451399200,5cyclictest0-21swapper/107:26:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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