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2025-12-30 - 15:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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 - 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 rackeslot5s.osadl.org (updated Tue Dec 30, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7101992724,2cyclictest23203-21dump-pmu-power08:50:010
710499250,1cyclictest14109-21awk10:45:012
7105992420,3cyclictest0-21swapper/310:55:423
710499240,22cyclictest313-21systemd-journal08:00:012
710499240,1cyclictest0-21swapper/211:00:462
710199240,23cyclictest26184-21munin-plugin-st11:10:000
7105992320,2cyclictest313-21systemd-journal08:35:003
710599230,22cyclictest29704-21awk10:10:003
710499231,21cyclictest5230-21apt09:20:002
710499230,22cyclictest27330-21munin-plugin-st10:05:012
710199230,22cyclictest24341-21sh07:45:000
7105992220,1cyclictest9447-21munin-run07:15:013
7105992220,1cyclictest24903-21latency_hist10:00:013
710599220,7cyclictest0-21swapper/312:30:443
710599220,21cyclictest14431-21apt-get10:45:443
710599220,21cyclictest0-21swapper/308:05:433
710599220,21cyclictest0-21swapper/308:05:433
710599220,21cyclictest0-21swapper/307:35:423
7104992220,1cyclictest13593-21awk08:30:002
7104992220,1cyclictest0-21swapper/212:20:012
7104992220,1cyclictest0-21swapper/211:25:012
710499220,21cyclictest0-21swapper/209:00:432
7103992220,1cyclictest313-21systemd-journal10:10:001
7103992220,1cyclictest313-21systemd-journal10:00:011
7103992220,1cyclictest0-21swapper/110:25:001
7103992217,4cyclictest19223-21apt-get10:55:421
710399220,21cyclictest28380-21apt09:00:431
710399220,21cyclictest20821-21munin-run08:45:001
710399220,21cyclictest15990-21cron08:35:001
710399220,21cyclictest12769-21apt-get09:35:441
710399220,1cyclictest364-21cron09:10:011
710399220,0cyclictest0-21swapper/108:20:451
710399220,0cyclictest0-21swapper/107:20:421
7101992220,1cyclictest22442-21latency_hist09:55:010
7101992220,1cyclictest10578-21perf11:45:000
710199220,21cyclictest10069-21munin-run09:30:000
710199220,21cyclictest0-21swapper/010:10:450
710199220,21cyclictest0-21swapper/009:10:440
7105992121,0cyclictest0-21swapper/308:45:433
7105992120,1cyclictest18723-21apt-get08:40:413
7105992120,1cyclictest0-21swapper/308:55:433
7105992119,1cyclictest30467-21turbostat09:05:013
7105992119,1cyclictest0-21swapper/307:50:463
7105992116,5cyclictest0-21swapper/310:35:443
710599210,21cyclictest0-21swapper/308:35:443
710599210,20cyclictest16956-21apt-get07:30:433
710599210,1cyclictest21643-21apt-get11:00:453
710599210,0cyclictest0-21swapper/309:05:443
710599210,0cyclictest0-21swapper/307:25:423
710599210,0cyclictest0-21swapper/307:20:423
7104992120,1cyclictest0-21swapper/209:25:432
7104992119,1cyclictest6400-21munin-run08:15:012
7104992119,1cyclictest4824-21apt-get10:25:452
7104992119,1cyclictest30990-21perf11:20:012
7104992119,1cyclictest29201-21perf07:55:002
7104992119,1cyclictest20856-21/usr/sbin/munin12:05:452
7104992119,1cyclictest0-21swapper/211:40:442
7104992119,1cyclictest0-21swapper/207:50:002
7104992118,2cyclictest9307-21dump-pmu-power10:35:012
710499210,20cyclictest736-21apt-get09:10:432
710499210,20cyclictest22264-21apt-get07:40:422
710499210,20cyclictest20073-21grep09:50:012
710499210,20cyclictest12163-21apt-get07:20:422
710499210,20cyclictest0-21swapper/207:15:442
710499210,20cyclictest0-21swapper/207:15:442
710499210,1cyclictest0-21swapper/210:15:002
710499210,0cyclictest0-21swapper/211:45:442
7103992121,0cyclictest25234-21apt-get10:00:421
7103992121,0cyclictest0-21swapper/110:35:441
7103992120,0cyclictest11202-21apt-get11:45:021
7103992119,1cyclictest22964-21latency_hist12:10:011
710399210,21cyclictest0-21swapper/111:00:461
710399210,21cyclictest0-21swapper/109:40:021
710399210,21cyclictest0-21swapper/107:35:021
710399210,20cyclictest7351-21apt-get07:10:421
710399210,20cyclictest3676-21apt-get11:30:431
710399210,20cyclictest0-21swapper/111:40:431
710399210,20cyclictest0-21swapper/110:35:011
710399210,20cyclictest0-21swapper/109:25:441
710399210,0cyclictest6693-21apt-get08:15:421
710399210,0cyclictest30646-21munin-run12:25:011
710399210,0cyclictest0-21swapper/112:25:431
7101992121,0cyclictest16308-21apt-get08:35:440
7101992120,1cyclictest16828-21apt-get10:50:430
7101992119,1cyclictest6393-21apt08:15:010
710199210,21cyclictest0-21swapper/011:20:420
710199210,21cyclictest0-21swapper/009:35:440
710199210,20cyclictest0-21swapper/011:45:440
710199210,20cyclictest0-21swapper/007:30:430
710199210,0cyclictest15493-21apt-get09:40:020
710199210,0cyclictest0-21swapper/012:05:450
710199210,0cyclictest0-21swapper/009:55:440
710199210,0cyclictest0-21swapper/009:45:430
7105992020,0cyclictest6075-21apt-get11:35:443
7105992020,0cyclictest0-21swapper/312:25:433
7105992020,0cyclictest0-21swapper/311:45:443
7105992020,0cyclictest0-21swapper/311:20:423
7105992020,0cyclictest0-21swapper/309:40:433
7105992020,0cyclictest0-21swapper/309:35:443
7105992020,0cyclictest0-21swapper/309:15:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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