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2025-06-28 - 23:31

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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.

Total number of samples: 50.5 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 792 highest latencies:
System rack5slot7s.osadl.org (updated Sat Jun 28, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32150224402187,97sleep00-21swapper07:07:380
324609916015,117cyclictest26187-21apt-get09:46:500
324609916014,118cyclictest24432-21latency_hist09:35:090
324609915918,116cyclictest13090-21diskstats11:40:310
324609915818,113cyclictest28104-21apt-get09:55:210
324609915816,25cyclictest11389-21df08:15:440
324609915734,102cyclictest20279-21apt-get09:10:170
324609915718,116cyclictest2990-21apt-get10:40:200
324609915715,117cyclictest26189-21munin-run09:45:030
324609915621,107cyclictest24197-21munin-node07:15:030
324609915613,28cyclictest1992-21wc07:20:050
324609915613,118cyclictest6466-21irqstats07:45:420
324609915539,97cyclictest6205-21sh11:00:020
324609915513,26cyclictest2779-21munin-run10:40:020
324609915412,118cyclictest21604-21sed12:31:020
32460991538,122cyclictest10990-21munin-run08:15:010
324609915316,25cyclictest19405-21apt-get12:20:160
324609915316,23cyclictest12863-21munin-run11:40:010
324609915315,114cyclictest18674-21df12:15:310
324609915314,115cyclictest1558-21/usr/sbin/munin10:30:480
324609915314,114cyclictest9415-21cron11:20:010
324609915312,118cyclictest17680-21kworker/u2:312:10:000
324609915312,116cyclictest14137-21ps11:45:570
324609915216,95cyclictest4348-21apt-get07:35:430
324609915214,25cyclictest4191-21/usr/sbin/munin07:31:020
324609915213,116cyclictest9927-21wc08:05:590
324609915212,116cyclictest16623-21find08:45:580
324609915212,113cyclictest3539-21cron07:30:000
324609915210,118cyclictest2624-21grep07:21:060
324609915210,118cyclictest18907-21ntpq09:00:510
324609915116,111cyclictest24338-21apt-get09:36:090
324609915115,97cyclictest4814-21df10:50:290
324609915114,113cyclictest17951-21irqstats12:10:440
324609915113,28cyclictest10511-21irqstats11:25:420
324609915112,114cyclictest8186-21sort11:10:510
324609915111,115cyclictest15005-21wc08:36:010
324609915023,20cyclictest0-21swapper09:25:040
324609915019,26cyclictest22849-21apt-get09:25:200
324609915016,23cyclictest17784-21/usr/sbin/munin08:56:090
324609915015,48cyclictest581-21df10:25:290
324609915014,23cyclictest11030-21apt-get11:31:060
324609915011,112cyclictest27730-21grep09:51:130
324609915010,117cyclictest4618-21munin-run10:50:020
32460991499,116cyclictest16745-21cat12:01:040
324609914934,95cyclictest30246-21ls10:06:030
324609914916,22cyclictest32021-21munin-run10:20:010
324609914914,24cyclictest20108-21grep09:10:060
324609914836,20cyclictest22466-21cron12:40:010
324609914834,21cyclictest9331-21grep08:01:090
324609914814,109cyclictest7267-21/usr/sbin/munin07:50:460
324609914814,106cyclictest28925-21apt-get10:00:180
324609914813,29cyclictest22001-21latency_hist09:20:060
324609914813,25cyclictest9645-21df11:20:310
324609914813,111cyclictest31210-21munin-run10:15:010
324609914812,114cyclictest17605-21kworker/u2:807:40:170
324609914812,113cyclictest8194-21grep07:55:500
324609914716,108cyclictest12249-21df08:20:370
324609914716,107cyclictest6429-21df11:00:300
324609914715,109cyclictest14741-21irqstats11:50:430
324609914711,39cyclictest15820-21grep08:40:580
324609914711,39cyclictest13625-21head08:26:060
324609914710,113cyclictest268-21snmpd11:07:420
324609914619,101cyclictest331-21users10:21:090
324609914617,26cyclictest15538-21/usr/sbin/munin11:55:400
324609914517,103cyclictest20196-21/usr/sbin/munin12:25:560
324609914513,29cyclictest13971-21kernelversion08:30:430
32460991448,99cyclictest17176-21uname08:50:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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