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2025-07-10 - 12:36

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 Thu Jul 10, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17068224212191,85sleep00-21swapper19:08:580
172309916845,22cyclictest6636-21/usr/sbin/munin21:20:560
172309915818,38cyclictest18020-21munin-run19:15:060
172309915816,117cyclictest25555-21apt-get20:00:280
172309915735,23cyclictest29054-21/usr/sbin/munin23:41:410
172309915718,26cyclictest18890-21ntp_states22:35:520
172309915716,24cyclictest22485-21munin-run23:00:020
172309915712,26cyclictest23448-21grep19:45:570
172309915630,23cyclictest13432-21apt-get22:06:590
172309915616,112cyclictest29050-21diskstats20:20:360
172309915612,119cyclictest28367-21cat23:35:360
172309915610,120cyclictest30743-21apt-get23:51:380
172309915516,99cyclictest10433-21df_inode21:45:290
172309915514,117cyclictest5164-21apt-get21:15:500
172309915512,120cyclictest3456-21sort00:20:050
172309915418,108cyclictest17778-21apt-get22:30:210
172309915414,99cyclictest22535-21sort19:40:440
172309915414,33cyclictest12596-21sshd21:59:250
172309915325,21cyclictest0-21swapper19:31:090
172309915315,110cyclictest15349-21/usr/sbin/munin22:15:490
172309915314,100cyclictest19727-21apt-get19:25:290
172309915312,121cyclictest26106-21kworker/u2:1120:05:160
172309915219,23cyclictest23978-21df_inode19:50:300
172309915216,23cyclictest268-21snmpd21:50:420
172309915214,113cyclictest18231-21diskstats19:15:240
172309915213,97cyclictest1169-21munin-run20:50:000
172309915213,116cyclictest317-21df00:00:240
172309915118,47cyclictest9125-21/usr/sbin/munin21:36:020
172309915116,113cyclictest27312-21apt23:30:010
172309915116,112cyclictest32570-21munin-run00:00:020
172309915115,111cyclictest27629-21ntp_states20:10:520
172309915114,112cyclictest3301-21rt-features21:00:590
172309915111,24cyclictest4349-21ls00:25:230
17230991509,117cyclictest1317-21tr00:05:490
172309915025,19cyclictest0-21swapper20:55:060
172309915018,23cyclictest28219-21diskstats20:15:340
172309915016,21cyclictest32021-21munin-run20:40:030
172309915011,115cyclictest13289-21ls22:01:040
172309914917,26cyclictest24293-21df23:10:250
172309914917,21cyclictest24773-21df_inode19:55:300
172309914915,27cyclictest4583-21diskstats21:10:370
172309914913,21cyclictest20705-21sort22:45:590
172309914913,112cyclictest2474-21head00:11:040
172309914911,24cyclictest25821-21/usr/sbin/munin23:20:120
172309914911,114cyclictest17607-21grep22:26:020
172309914910,117cyclictest21832-21wc19:35:580
172309914822,26cyclictest7231-21diskstats21:25:320
172309914815,20cyclictest24988-21apt-get23:15:250
172309914814,35cyclictest27838-21wc23:30:560
172309914813,96cyclictest29941-21cat20:25:430
172309914813,93cyclictest30697-21irqstats20:30:380
172309914813,112cyclictest30821-21apt-config23:50:070
172309914812,50cyclictest3575-21expr00:20:230
172309914811,113cyclictest24072-21sshd23:06:250
172309914726,82cyclictest0-21swapper21:35:020
172309914720,28cyclictest9532-21apt-get21:40:210
172309914717,25cyclictest32253-21diskstats20:40:320
172309914716,108cyclictest23299-21munin-run23:05:000
172309914716,106cyclictest2303-21memory20:55:440
172309914715,26cyclictest15169-21grep22:11:100
172309914712,111cyclictest19261-21ps19:21:030
172309914711,24cyclictest16833-21/usr/sbin/munin22:21:050
172309914710,24cyclictest6571-21munin-run00:40:020
172309914617,105cyclictest5074-21/usr/sbin/munin00:30:590
172309914614,38cyclictest21088-21df22:50:290
172309914515,24cyclictest4334-21users21:06:040
172309914414,106cyclictest19399-21apt-get22:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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