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2025-05-05 - 01:50

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 Sun May 04, 2025 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30297241160,24sleep021081-1kworker/u3:107:06:540
306879916613,106cyclictest30455-21sshd10:20:440
306879916214,64cyclictest15472-21munin-run12:10:040
306879916116,24cyclictest13176-21apt-get08:36:580
306879916014,122cyclictest8480-21wc08:10:050
306879916010,45cyclictest12379-21sshd08:33:450
306879915913,123cyclictest20037-21memory12:35:450
306879915814,115cyclictest15652-21/usr/sbin/munin12:11:290
306879915813,119cyclictest15024-21apt-get08:51:030
306879915810,123cyclictest5830-21sort07:55:030
306879915727,94cyclictest14625-21grep12:01:070
306879915712,26cyclictest19372-21grep12:30:550
306879915627,21cyclictest0-21swapper09:20:010
306879915615,118cyclictest3361-21munin-run07:40:020
306879915614,47cyclictest1853-21df_inode10:45:290
306879915614,101cyclictest32620-21apt07:20:010
306879915613,35cyclictest17419-21/usr/sbin/munin12:21:040
306879915610,121cyclictest16048-21apt-get08:55:440
306879915517,24cyclictest8556-21irqstats11:25:450
306879915516,37cyclictest21077-21apt-get09:25:520
306879915424,25cyclictest1064-21diskstats10:40:360
306879915414,98cyclictest28830-21memory10:10:450
306879915414,23cyclictest18907-21munin-plugin-st12:30:010
306879915412,35cyclictest23555-21sort09:36:030
306879915316,23cyclictest11663-21cat08:30:040
306879915312,25cyclictest31868-21cstates10:30:230
306879915312,117cyclictest14051-21grep08:41:070
306879915311,121cyclictest19045-21tr09:10:500
306879915310,118cyclictest7147-21awk08:00:590
306879915240,91cyclictest28334-21switchtime10:06:000
306879915212,117cyclictest31023-21memory07:10:450
306879915211,103cyclictest27650-21grep10:01:060
306879915113,115cyclictest6458-21cat11:15:030
306879915113,115cyclictest4946-21/usr/sbin/munin11:05:440
306879915037,20cyclictest12412-21cpu11:50:210
306879915017,110cyclictest7237-21apt-get11:21:360
306879915015,39cyclictest13404-21memory11:55:440
306879915015,111cyclictest4256-21df11:00:290
306879915014,23cyclictest26888-21munin-run10:00:020
306879915011,114cyclictest2294-21sendmail_mailqu07:30:580
306879914923,99cyclictest20626-21memory09:20:460
306879914917,24cyclictest21747-1kworker/u3:409:30:210
306879914913,25cyclictest16962-21wc12:16:000
306879914913,116cyclictest24503-21latency_hist09:45:010
306879914913,113cyclictest9272-21expr11:30:240
306879914912,114cyclictest4103-21sed07:41:040
306879914912,113cyclictest18066-21/usr/sbin/munin09:05:270
306879914912,113cyclictest10355-21memory08:20:450
306879914911,27cyclictest4028-21latency_hist11:00:010
306879914911,114cyclictest7242-21munin-run11:20:040
306879914910,25cyclictest10072-21/usr/sbin/munin11:35:280
306879914814,23cyclictest15032-21http08:50:040
306879914812,26cyclictest836-21/usr/sbin/munin10:40:040
306879914810,25cyclictest21081-1kworker/u3:107:25:150
306879914714,109cyclictest11805-21sort11:45:420
306879914713,109cyclictest32745-21apt-get07:20:150
306879914614,111cyclictest112-21systemd-journal10:25:450
306879914614,109cyclictest5034-21cat07:50:050
306879914613,106cyclictest10786-21/usr/sbin/munin11:40:490
30687991459,95cyclictest8906-21ps08:11:030
306879914524,22cyclictest0-21swapper07:55:530
306879914517,24cyclictest17177-21apt-get09:00:260
306879914515,89cyclictest26050-21users09:51:080
306879914511,39cyclictest2978-21awk10:50:570
306879914415,108cyclictest9977-21cron08:20:010
306879914325,21cyclictest0-21swapper09:45:540
306879914314,30cyclictest29854-21systemctl10:16:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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