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2025-07-05 - 19:01

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 all highest latencies:
System rack5slot7s.osadl.org (updated Sat Jul 05, 2025 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18902224332195,96sleep00-21swapper07:07:440
191989916618,102cyclictest308-21apt-get08:30:250
191989916018,100cyclictest5156-21apt-get09:01:220
191989915817,116cyclictest28862-21irqstats08:05:420
191989915816,24cyclictest20003-21munin-node07:15:070
191989915723,102cyclictest28460-21apt-get11:20:210
191989915716,113cyclictest2080-21apt-get08:40:200
191989915714,116cyclictest30885-21/usr/sbin/munin11:35:500
191989915614,25cyclictest21455-21wc10:35:480
191989915519,108cyclictest3047-21irqstats08:45:410
191989915516,26cyclictest18466-21/usr/sbin/munin10:20:060
191989915515,116cyclictest15207-21apt-get10:00:270
191989915513,40cyclictest21062-21users10:31:040
191989915479,50cyclictest22254-21sort10:40:430
191989915422,30cyclictest17071-21diskstats10:10:360
191989915413,25cyclictest30986-21munin-run08:20:030
191989915412,120cyclictest814-21kworker/u2:1608:35:190
191989915412,118cyclictest12346-21rt-features09:40:570
191989915322,105cyclictest3360-21diskstats12:05:340
191989915316,112cyclictest30175-21munin-run08:15:010
191989915314,99cyclictest28207-21sort11:16:050
191989915313,39cyclictest3892-21sort08:50:450
191989915313,114cyclictest22052-21apt-get07:25:210
191989915312,24cyclictest26575-21kworker/u2:907:55:180
191989915234,19cyclictest18656-21apt-get10:20:140
191989915216,20cyclictest32502-21apt-get11:45:200
191989915214,115cyclictest19713-21df10:25:350
191989915116,110cyclictest1744-21diskstats11:55:330
191989915115,24cyclictest25114-21munin-run11:00:020
191989915115,20cyclictest6530-21apt-get12:25:270
191989915113,42cyclictest11362-21missed_timers09:35:470
191989915111,115cyclictest4162-21/usr/sbin/munin12:10:340
191989915110,118cyclictest26129-21/usr/sbin/munin07:51:300
191989915015,94cyclictest5162-21munin-run09:00:050
191989915015,110cyclictest14421-21df_inode09:55:280
191989915013,114cyclictest22936-21diskstats10:45:340
191989915010,115cyclictest5521-21sshd12:17:220
191989914929,98cyclictest29765-21mailstats11:25:590
191989914920,25cyclictest25947-21munin-run07:50:040
191989914917,109cyclictest7995-21df09:15:270
191989914916,20cyclictest0-21swapper11:50:580
191989914915,21cyclictest0-21swapper07:30:570
191989914914,113cyclictest8974-21latency_hist12:40:000
191989914913,20cyclictest23824-21grep07:35:410
191989914912,39cyclictest25651-21awk11:01:000
191989914912,26cyclictest9151-21find09:20:560
191989914911,117cyclictest28317-21wc08:00:580
191989914911,112cyclictest2872-21grep12:00:560
191989914910,26cyclictest20977-21ls07:16:180
191989914829,98cyclictest9785-21cat09:25:490
191989914824,96cyclictest32013-21diskstats08:25:350
191989914821,99cyclictest31217-21diskstats08:20:350
191989914820,27cyclictest24571-21diskstats07:40:370
191989914816,23cyclictest21259-21apt-get07:20:220
191989914814,108cyclictest7103-21apt-get09:10:180
191989914813,25cyclictest10638-21awk09:30:540
191989914812,27cyclictest6398-1kworker/u3:312:30:200
191989914731,93cyclictest14143-21grep09:51:030
191989914718,25cyclictest16169-21apt-get10:05:240
191989914715,107cyclictest5669-21apt-get12:20:210
191989914714,24cyclictest6673-21wc09:06:020
191989914713,31cyclictest31708-21/usr/sbin/munin11:40:140
19198991469,26cyclictest21204-21kworker/u2:010:50:160
191989914611,109cyclictest27408-21timerwakeupswit11:11:040
191989914418,24cyclictest30264-21/usr/sbin/munin11:30:390
191989914411,108cyclictest12728-21apt-get09:45:210
191989914315,25cyclictest26320-21grep11:05:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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