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2026-02-13 - 18:30
[ 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 #9, slot #3

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 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 50 highest latencies:
System rack9slot3s.osadl.org (updated Fri Feb 13, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591660,31ptp4l0-21swapper/107:08:061
119591630,31ptp4l0-21swapper/007:09:180
3044725248,2sleep30-21swapper/307:07:393
3039925147,2sleep20-21swapper/207:07:022
119591230,0ptp4l0-21swapper/011:05:120
119591190,0ptp4l0-21swapper/008:40:140
119591180,0ptp4l0-21swapper/107:16:061
119591180,0ptp4l0-21swapper/009:00:120
119591170,0ptp4l0-21swapper/111:55:141
119591170,0ptp4l0-21swapper/111:50:151
119591160,2ptp4l0-21swapper/007:15:180
119591160,1ptp4l9589-21apt-get08:30:121
119591160,1ptp4l8743-21apt-get10:30:111
119591160,1ptp4l19366-21apt-get10:50:131
119591160,0ptp4l0-21swapper/109:00:141
119591160,0ptp4l0-21swapper/009:25:240
234262150,1sleep323425-21grep08:55:153
119591150,1ptp4l7987-21ls10:25:231
119591150,1ptp4l7143-21snmp_o5powerctl12:25:221
119591150,1ptp4l29758-21ls10:05:221
119591150,1ptp4l21783-21ls09:50:220
119591150,1ptp4l21565-21snmp_o5powerctl09:50:211
119591150,1ptp4l21210-21hddtemp_smartct07:50:151
119591150,1ptp4l21044-21snmp_o5powerctl10:50:230
119591150,1ptp4l18289-21snmp_o5powerctl11:45:231
119591150,1ptp4l18001-21ls10:45:181
119591150,1ptp4l17121-21ls07:40:231
119591150,1ptp4l15384-21/usr/sbin/munin10:40:180
119591150,1ptp4l15384-21/usr/sbin/munin10:40:180
119591150,1ptp4l13068-21snmp_o5powerctl10:35:221
119591150,1ptp4l10412-21snmp_o5powerctl10:30:200
119591150,0ptp4l0-21swapper/107:10:341
119591150,0ptp4l0-21swapper/012:27:340
150402140,0sleep30-21swapper/308:40:143
119591140,1ptp4l9986-21idleruntime09:30:152
119591140,1ptp4l7735-21diskstats07:25:151
119591140,1ptp4l6278-21snmp_o5powerctl07:20:201
119591140,1ptp4l6115-21ls08:20:220
119591140,1ptp4l5866-21ls09:20:230
119591140,1ptp4l571-21df_inode12:15:120
119591140,1ptp4l4490-21snmp_o5powerctl12:20:211
119591140,1ptp4l32627-21latency_hist11:15:012
119591140,1ptp4l31931-21open_files10:10:191
119591140,1ptp4l30285-21ls09:05:241
119591140,1ptp4l2824-21aten_r9power_cu12:20:120
119591140,1ptp4l26261-21snmp_o5powerctl12:00:221
119591140,1ptp4l26022-21grep08:00:150
119591140,1ptp4l23330-21df_inode08:55:150
119591140,1ptp4l22668-21if_enp2s011:55:160
119591140,1ptp4l19557-21cstates11:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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