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2026-02-27 - 03:17
[ 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 50 highest latencies:
System rack4slot6s.osadl.org (updated Fri Feb 27, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2641221330,2sleep026414-21modprobe22:10:010
2439321230,3sleep024392-21pluginstate19:55:240
810021140,3chrt8098-21sshd23:04:310
167821130,4sleep01697-21sendmail22:40:000
84921050,2sleep0853-21latency20:30:180
568921020,3sleep05730-21cpu22:55:110
192982990,2sleep019299-21switchtime21:40:270
218962905,9sleep021960-21mailstats19:45:260
86502880,4sleep08713-21awk21:00:210
174962870,3sleep017536-21cat19:30:010
124732857,10sleep012474-21ntp_states23:20:210
318962836,11sleep031897-21memory22:30:180
19792834,9sleep01984-21irqstats22:40:150
107442830,3sleep010803-21latency_hist23:15:020
38082775,57sleep03879-21users20:40:250
1129127319,32sleep011296-21/usr/sbin/munin19:05:150
148042710,2sleep014806-21sh21:25:010
53322705,55sleep0288-21snmpd20:46:430
12356996732,13cyclictest26262-21latency_hist00:15:010
12356996136,15cyclictest21502-21/usr/sbin/munin21:50:150
12356996135,16cyclictest29002-21/usr/sbin/munin00:25:090
12356996024,14cyclictest276-21runrttasks00:32:390
1235699599,18cyclictest22936-21ntpq21:55:210
12356995934,16cyclictest24381-21/usr/sbin/munin00:05:290
1235699589,17cyclictest31877-21/usr/sbin/munin20:25:250
1235699589,16cyclictest12750-21ntpq19:10:230
1235699587,16cyclictest20078-21munin-run19:40:010
12356995810,14cyclictest20477-21ntpq19:40:220
1235699579,16cyclictest7143-21/usr/sbin/munin20:55:140
1235699579,16cyclictest13466-21/usr/sbin/munin23:25:240
1235699579,15cyclictest17341-21/usr/sbin/munin23:40:240
1235699578,36cyclictest27676-21/usr/sbin/munin00:20:110
1235699578,15cyclictest17493-21/usr/sbin/munin21:35:270
1235699578,15cyclictest16504-21ntp_states21:30:240
1235699577,18cyclictest22777-21/usr/sbin/munin19:50:250
12356995733,15cyclictest28390-21/usr/sbin/munin20:10:250
12356995733,14cyclictest26784-21/usr/sbin/munin22:10:180
12356995731,16cyclictest26769-21/usr/sbin/munin20:05:140
12356995731,15cyclictest20179-21/usr/sbin/munin21:45:150
12356995726,22cyclictest29705-21runrttasks22:20:270
12356995710,17cyclictest21506-21/usr/sbin/munin23:55:240
12356995710,15cyclictest18627-21egrep23:45:120
1235699569,16cyclictest30427-21/usr/sbin/munin22:25:160
1235699569,14cyclictest27825-21/usr/sbin/munin22:15:220
1235699568,16cyclictest17664-21egrep19:30:090
1235699568,15cyclictest22500-21/usr/sbin/munin00:00:260
1235699568,15cyclictest13876-21/usr/sbin/munin19:15:150
1235699567,16cyclictest5860-21/usr/sbin/munin20:50:150
12356995631,16cyclictest16283-21/usr/sbin/munin23:35:200
12356995616,13cyclictest1-21systemd23:52:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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