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2025-07-01 - 04:48

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 100 highest latencies:
System rack5slot7s.osadl.org (updated Tue Jul 01, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6216224462202,97sleep00-21swapper19:07:230
65569916444,23cyclictest18939-21rt-features23:45:570
65569916013,120cyclictest11585-21wc19:41:010
65569915915,119cyclictest15849-21munin-run20:10:010
65569915912,120cyclictest25867-21/usr/sbin/munin00:35:470
65569915817,116cyclictest8844-21df_inode19:25:290
65569915815,119cyclictest10837-21apt-get22:56:570
65569915718,23cyclictest6890-21memory19:10:440
65569915713,119cyclictest23359-21apt00:20:010
65569915622,106cyclictest12163-21diskstats23:05:360
65569915614,119cyclictest16647-21/usr/sbin/munin20:15:030
65569915516,24cyclictest19413-21memory20:30:480
65569915415,97cyclictest8853-21memory22:45:480
65569915415,114cyclictest20671-21munin-run20:40:030
65569915414,115cyclictest14359-21apt-get20:00:140
65569915410,119cyclictest15741-21find23:25:570
65569915320,29cyclictest23484-21apt-get00:20:230
65569915315,111cyclictest679-21diskstats21:55:370
65569915314,112cyclictest19315-21/usr/sbin/munin23:50:570
65569915227,22cyclictest14396-21apt23:20:010
65569915216,111cyclictest23068-21latency_hist20:55:010
65569915215,95cyclictest30808-21irqstats21:40:390
65569915213,115cyclictest7826-21munin-run19:20:030
65569915212,24cyclictest17939-21sort23:40:420
65569915118,107cyclictest21854-21apt-get00:10:120
65569915116,111cyclictest14239-21munin-run20:00:020
65569915111,24cyclictest30538-21modprobe21:40:030
65569915111,116cyclictest10200-21sort22:55:090
65569915070,38cyclictest13124-21/usr/sbin/munin23:10:470
65569915042,88cyclictest8122-21kernelversion19:20:460
65569915036,20cyclictest20933-21apt-get00:00:130
65569915021,28cyclictest2425-21memory22:05:450
65569915015,22cyclictest14763-21memory23:20:480
65569915014,35cyclictest4017-21memory22:15:470
65569915013,24cyclictest32115-21cron21:50:010
65569915012,28cyclictest16428-21ntp_states23:30:520
6556991499,26cyclictest7219-21ls22:35:450
65569914915,27cyclictest17582-21/usr/sbin/munin20:20:480
65569914915,20cyclictest25186-21diskstats00:30:330
65569914913,39cyclictest27314-21munin-run21:20:010
65569914913,27cyclictest3276-21grep22:10:530
65569914913,23cyclictest12741-21/usr/sbin/munin19:50:120
65569914911,27cyclictest17518-21grep23:36:030
65569914910,117cyclictest9901-21grep19:30:560
65569914820,27cyclictest23992-21apt-get21:00:230
65569914817,109cyclictest16924-21irqstats20:15:410
65569914816,22cyclictest0-21swapper20:55:350
65569914815,24cyclictest21754-21munin-run00:10:010
65569914812,112cyclictest28694-21awk21:25:590
65569914810,25cyclictest5301-21sh22:25:010
65569914810,116cyclictest25319-21kworker/u2:1521:10:190
65569914713,24cyclictest11378-21/usr/sbin/munin23:00:430
65569914713,113cyclictest24912-21unixbench_singl00:26:030
65569914712,110cyclictest24906-21apt-get21:05:160
65569914710,41cyclictest5841-21awk22:26:000
65569914615,24cyclictest21689-21df_inode20:45:300
65569914612,48cyclictest32461-21load21:50:440
65569914612,110cyclictest7815-21/usr/sbin/munin22:41:060
65569914612,109cyclictest29523-21/usr/sbin/munin21:31:010
65569914610,112cyclictest268-21snmpd21:20:160
65569914513,25cyclictest10755-21sendmail_mailqu19:36:010
65569914513,109cyclictest20915-21latency_hist00:00:060
65569914511,22cyclictest1465-21wc22:00:230
65569914510,51cyclictest12145-21cut19:45:410
65569914414,25cyclictest20893-21df_inode20:40:290
65569914317,24cyclictest18549-21awk20:25:390
65569914310,96cyclictest6195-21/usr/sbin/munin22:30:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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