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2024-04-27 - 09:52

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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 50 highest latencies:
System rackeslot8s.osadl.org (updated Sat Apr 27, 2024 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140974821040,1sleep10-21swapper/100:15:011
13614052460,1sleep10-21swapper/123:40:131
14390432300,1sleep20-21swapper/200:35:182
1008049992522,2cyclictest491-21avahi-daemon23:35:000
1008059992422,1cyclictest2609-21cron23:00:003
1008052992419,4cyclictest1081909-21cron20:10:001
1008052992320,2cyclictest0-21swapper/100:00:001
1008052992319,2cyclictest0-21swapper/121:20:001
1008052992319,2cyclictest0-21swapper/121:20:001
100804999232,20cyclictest1070108-21apt-get20:00:100
1008052992219,2cyclictest1294684-21kthreadcore22:50:211
1008052992218,2cyclictest0-21swapper/100:20:001
100804999219,6cyclictest512-21rs:main0
1008057992017,2cyclictest1166685-21basename21:20:002
1008057992017,2cyclictest1166685-21basename21:19:592
1008052992016,2cyclictest510-21in:imuxsock19:25:011
1008059991917,1cyclictest1388740-21sh00:00:003
1008057991915,2cyclictest1360971-21cron23:39:592
1008052991916,2cyclictest512-21rs:main1
1008052991916,2cyclictest0-21swapper/100:05:001
1008049991915,3cyclictest1105567-21systemd-run20:30:000
269698180,1rtkit-daemon0-21swapper/322:14:463
269698180,11rtkit-daemon1423399-21sed00:25:000
1008059991815,2cyclictest503-21polkitd19:45:013
1008057991816,1cyclictest1339859-21turbostat.cron23:24:592
1008057991815,2cyclictest1052088-21idleruntime-cro19:45:012
1008057991814,3cyclictest1346854-21sh23:30:002
1008057991814,2cyclictest1409749-21latency_hist00:15:012
1008057991814,2cyclictest1200140-21ntp_kernel_pll_21:40:232
1008052991815,2cyclictest1239383-21kthreadcore22:10:171
1008052991814,3cyclictest510-21in:imuxsock21:05:001
1008052991811,5cyclictest353-21systemd-journal21:30:001
1008059991714,2cyclictest1222452-21cron22:00:003
1008059991713,3cyclictest1088301-21fschecks_count20:15:133
1008057991713,3cyclictest1105274-21sshd20:26:482
100805299179,2cyclictest191rcu_preempt23:00:221
1008052991712,4cyclictest1375754-21sed23:50:161
1008052991712,3cyclictest1438641-21kthreadcore00:35:181
1008049991714,2cyclictest1360983-21awk23:40:000
1008049991712,4cyclictest0-21swapper/019:40:010
1008059991613,2cyclictest0-21swapper/300:35:163
1008059991612,3cyclictest1430410-21cpuspeed_turbos00:30:113
1008059991612,3cyclictest1033638-21unixbench_singl19:25:253
1008059991612,2cyclictest1147420-21fschecks_count21:05:163
1008057991614,1cyclictest1413547-21kthreadcore00:15:172
1008057991613,2cyclictest1131322-21kthreadcore20:50:182
1008057991612,3cyclictest0-21swapper/219:10:252
1008057991611,3cyclictest1265664-21kthreadcore22:30:192
100805799160,8cyclictest1436951-21sh00:35:002
100805299166,8cyclictest1436943-21munin-run00:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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