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2026-02-24 - 23:21
[ 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 100 highest latencies:
System rack4slot6s.osadl.org (updated Tue Feb 24, 2026 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1781521230,4chrt17813-21ntp_states09:20:240
338021180,4chrt3296-21/usr/sbin/munin08:25:150
2034221160,4chrt20341-21mailstats11:35:260
60021150,4sleep0549-21/usr/sbin/munin10:20:140
47421090,3chrt470-21latency_hist10:20:020
3065021080,4chrt30651-21/usr/sbin/munin08:05:140
1940421060,2sleep019407-21vmstat09:25:300
1655821020,3sleep016559-21latency07:10:230
2384721010,3sleep023897-21latency_hist09:45:010
201421010,3sleep02015-21/usr/sbin/munin08:20:130
1640221000,3sleep016456-21/usr/sbin/munin11:20:250
204382950,2sleep020437-21sort07:25:180
59102940,3sleep05912-21ls10:40:180
112282920,3sleep011294-21mailstats11:00:290
231212910,3sleep023138-21open_files07:35:230
253242870,4sleep025368-21/usr/sbin/munin09:50:160
190592790,3sleep019112-21interrupts07:20:140
19842785,9sleep01837-21/usr/sbin/munin10:25:190
96962770,3sleep09704-21latency10:55:140
197692770,2sleep019771-21modprobe11:35:000
291612720,2sleep029164-21cpu10:05:120
1526427119,31sleep015276-21ls07:05:180
16278996311,21cyclictest26417-21df12:00:120
16278996229,22cyclictest835-21/usr/sbin/munin08:15:170
16278996134,17cyclictest12291-21/usr/sbin/munin11:05:160
16278996111,18cyclictest5053-21/usr/sbin/munin08:30:260
1627899609,17cyclictest288-21snmpd08:10:210
1627899609,17cyclictest16737-21grep09:15:270
1627899609,16cyclictest14911-21/usr/sbin/munin09:10:230
16278996034,16cyclictest8864-21/usr/sbin/munin10:50:280
16278996034,16cyclictest28245-21/usr/sbin/munin07:55:200
16278996010,21cyclictest3419-21ntpq10:30:250
16278996010,17cyclictest6992-21/usr/sbin/munin10:45:120
1627899599,15cyclictest4684-21ntp_states10:35:220
1627899598,16cyclictest21209-21grep11:40:100
1627899597,18cyclictest357-21/usr/sbin/munin12:25:180
16278995934,16cyclictest8862-21/usr/sbin/munin08:45:250
16278995910,16cyclictest13809-21memory09:05:180
1627899589,16cyclictest3211-21ntp_states12:35:210
1627899588,17cyclictest27836-21/usr/sbin/munin10:00:280
1627899588,16cyclictest66562chrt08:37:050
1627899587,18cyclictest14985-21ntpq11:15:200
1627899587,17cyclictest17330-21/usr/sbin/munin11:25:140
16278995834,15cyclictest26810-21/usr/sbin/munin07:50:150
16278995811,17cyclictest17943-21ntp_states07:15:220
16278995811,13cyclictest13736-21ntp_states11:10:240
16278995810,15cyclictest30502-21ntp_states12:15:220
1627899579,14cyclictest26526-21/usr/sbin/munin09:55:160
1627899578,17cyclictest20398-21/usr/sbin/munin09:30:230
1627899578,15cyclictest24254-21ntp_states09:45:230
16278995733,16cyclictest30505-21/usr/sbin/munin10:10:140
16278995729,19cyclictest0-21swapper08:50:100
16278995710,17cyclictest28912-21latency_hist12:10:020
1627899569,18cyclictest24196-21df_inode07:40:130
1627899568,16cyclictest288-21snmpd11:45:320
1627899568,15cyclictest23821-21/usr/sbin/munin11:50:110
1627899568,15cyclictest12379-21df09:00:110
16278995633,15cyclictest25418-21runrttasks07:45:100
16278995630,16cyclictest21493-21/usr/sbin/munin09:35:140
16278995611,16cyclictest29184-21ntp_kernel_err12:10:190
1627899558,15cyclictest11311-21ntp_states08:55:230
1627899557,19cyclictest25302-21/usr/sbin/munin11:55:200
16278995510,16cyclictest1994-21/usr/sbin/munin12:30:250
1627899549,18cyclictest8382-21grep08:45:020
1627899549,15cyclictest21543-21/usr/sbin/munin07:30:170
1627899548,15cyclictest29696-21grep08:00:250
1627899547,15cyclictest31540-21/usr/sbin/munin12:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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