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2026-01-18 - 08:54
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack4slot6s.osadl.org (updated Sun Jan 18, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2733222630,2sleep027334-21cron20:30:010
1856221160,4chrt18560-21irqstats19:55:170
324821140,4chrt3247-21sort23:10:010
391021100,3chrt3908-21sendmail_mailst21:05:350
2935421060,3chrt29352-21vmstat20:35:280
101612960,3sleep010209-21/usr/sbin/munin23:35:270
163172950,3sleep016375-21wc19:45:290
64582860,3sleep06522-21mailstats21:15:270
6705998453,20cyclictest31170-21/usr/sbin/munin22:50:290
59902840,3sleep06028-21if_eth023:20:150
215392810,3sleep021540-21cat00:20:160
6705997950,18cyclictest15394-21ntp_states21:50:210
6705997848,16cyclictest9691-21ntp_states19:20:220
6705997750,18cyclictest7337-21/usr/sbin/munin19:10:280
6705997750,15cyclictest25711-21ntpq22:30:170
6705997734,16cyclictest276-21runrttasks23:49:370
561927722,32sleep05647-21irqstats19:05:150
6705997650,15cyclictest32233-21proc_pri22:55:250
6705997647,20cyclictest20009-21ntp_states20:00:210
6705997647,16cyclictest32627-21/usr/sbin/munin20:50:130
6705997546,18cyclictest18959-21grep22:05:010
6705997451,13cyclictest28323-21chrt20:32:330
6705997352,13cyclictest8088-21runrttasks23:27:500
6705997349,14cyclictest22807-21if_eth000:25:130
6705997343,17cyclictest27219-21/usr/sbin/munin22:35:250
6705997334,28cyclictest21294-21sendmail-msp00:20:000
6705997247,14cyclictest23176-21seq20:12:450
6705997246,15cyclictest5367-21seq21:10:300
6705997245,14cyclictest8950-21ntp_states21:25:210
6705997147,14cyclictest17718-21/usr/sbin/munin00:05:170
6705997145,15cyclictest28940-21seq22:42:580
6705997145,15cyclictest23310-21mailstats22:20:250
6705997144,13cyclictest14081-21mailstats23:50:250
6705997143,16cyclictest15115-21memory23:55:180
6705997139,21cyclictest20463-21memory22:10:170
6705997136,19cyclictest31534-21memory20:45:180
6705997046,14cyclictest14094-21/usr/sbin/munin21:45:220
6705997045,16cyclictest25089-21memory20:20:170
6705997045,14cyclictest10864-21sort19:25:170
6705997045,13cyclictest13774-21grep21:45:010
6705997043,14cyclictest24025-21chrt00:30:340
6705997038,18cyclictest29599-21ntpq22:45:180
6705997036,19cyclictest21203-21memory20:05:180
6705997024,17cyclictest4593-21/usr/sbin/munin23:15:120
6705996945,14cyclictest16321-21idleruntime00:00:130
6705996944,15cyclictest16578-21/usr/sbin/munin21:55:180
6705996944,14cyclictest1393-21seq23:00:540
6705996944,12cyclictest14975-21which19:40:250
6705996943,15cyclictest10136-21memory21:30:170
6705996847,13cyclictest12750-21runrttasks19:31:570
6705996846,14cyclictest12463-21latency_hist21:40:010
6705996845,15cyclictest12319-21latency_hist23:45:010
6705996845,14cyclictest1-21systemd00:15:020
6705996745,13cyclictest22407-21runrttasks22:17:280
6705996743,15cyclictest24220-21runrttasks22:25:120
6705996742,15cyclictest30249-21/usr/sbin/munin20:40:170
6705996740,18cyclictest24245-21sshd20:15:590
6705996731,20cyclictest8489-21/usr/sbin/munin23:30:130
6705996643,15cyclictest9222-21runrttasks19:19:500
6705996643,14cyclictest1743-21ntpq20:55:210
6705996641,14cyclictest8591-21latency_hist21:25:020
6705996544,13cyclictest25297-21systemctl00:40:000
6705996543,12cyclictest3378-21df23:10:130
6705996542,15cyclictest18302-21runrttasks19:55:010
6705996527,28cyclictest20018-21sshd22:09:000
6705996441,13cyclictest3256-21chrt21:04:140
6705996333,18cyclictest13868-21chrt19:35:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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