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2026-02-06 - 08:51
[ 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 100 highest latencies:
System rack9slot3s.osadl.org (updated Thu Feb 05, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591630,40ptp4l0-21swapper/019:05:190
119591580,35ptp4l0-21swapper/119:05:251
1893925046,2sleep30-21swapper/319:05:393
1899324945,2sleep20-21swapper/219:06:222
1300913229,1phc2sys0-21swapper/119:10:011
119591230,0ptp4l0-21swapper/023:30:190
119591200,0ptp4l0-21swapper/119:25:251
119591190,0ptp4l19226-21diskmemload22:35:170
119591180,2ptp4l0-21swapper/021:10:170
119591180,0ptp4l0-21swapper/122:10:181
119591180,0ptp4l0-21swapper/000:25:160
119591170,0ptp4l0-21swapper/019:35:160
119591170,0ptp4l0-21swapper/019:30:230
119591170,0ptp4l0-21swapper/019:20:170
119591160,0ptp4l0-21swapper/121:45:191
119591160,0ptp4l0-21swapper/100:34:331
119591160,0ptp4l0-21swapper/000:35:010
119591150,1ptp4l7419-21memory20:45:180
119591150,1ptp4l23389-21taskset23:15:211
119591150,1ptp4l20540-21snmp_o5powerctl00:10:210
119591150,1ptp4l2026-21snmp_o5powerctl21:35:220
119591150,1ptp4l1520-21ntp_states23:35:191
119591150,1ptp4l15104-21snmp_o5powerctl00:00:211
119591150,1ptp4l12584-21ls23:55:230
119591150,1ptp4l10206-21snmp_o5powerctl21:50:200
119591150,0ptp4l0-21swapper/123:50:131
119591150,0ptp4l0-21swapper/121:20:111
119591150,0ptp4l0-21swapper/121:10:121
119591150,0ptp4l0-21swapper/023:20:110
119591150,0ptp4l0-21swapper/023:07:190
119591150,0ptp4l0-21swapper/021:00:150
19535991413,0cyclictest0-21swapper/120:14:081
119591140,2ptp4l0-21swapper/219:55:232
119591140,2ptp4l0-21swapper/000:18:390
119591140,1ptp4l927-21cron19:35:011
119591140,1ptp4l9043-21fschecks_count21:50:131
119591140,1ptp4l8541-21cstates22:50:122
119591140,1ptp4l7251-21/usr/sbin/munin21:45:200
119591140,1ptp4l5568-21apt-get22:45:130
119591140,1ptp4l4308-21grep21:40:171
119591140,1ptp4l32642-21grep20:30:240
119591140,1ptp4l31163-21/usr/sbin/munin00:30:230
119591140,1ptp4l3049-21cpuspeed_turbos23:40:141
119591140,1ptp4l28677-21memory21:25:181
119591140,1ptp4l2856-21apt-key22:40:010
119591140,1ptp4l2818-21aten_r9power_cu23:40:130
119591140,1ptp4l24664-21diskstats00:20:141
119591140,1ptp4l24347-21snmp_o5powerctl20:15:261
119591140,1ptp4l23382-21snmp_o5powerctl23:15:210
119591140,1ptp4l22320-21ntp_states19:15:021
119591140,1ptp4l21817-21apt-get22:15:121
119591140,1ptp4l16531-21cstates00:05:130
119591140,1ptp4l15843-21munin-run00:05:010
119591140,1ptp4l12859-21snmp_o5powerctl21:55:251
119591140,1ptp4l11882-21smartctl21:55:190
119591140,1ptp4l11338-21df_inode22:55:141
119591140,1ptp4l11332-21df22:55:130
119591140,1ptp4l10634-21perf22:55:020
119591140,1ptp4l10070-21memory20:50:181
119591140,0ptp4l7132-21smartctl23:45:211
119591140,0ptp4l0-21swapper/220:58:562
119591140,0ptp4l0-21swapper/123:28:341
119591140,0ptp4l0-21swapper/123:00:181
119591140,0ptp4l0-21swapper/122:40:231
119591140,0ptp4l0-21swapper/121:35:311
119591140,0ptp4l0-21swapper/121:30:211
119591140,0ptp4l0-21swapper/121:15:171
119591140,0ptp4l0-21swapper/121:05:231
119591140,0ptp4l0-21swapper/120:34:561
119591140,0ptp4l0-21swapper/100:35:111
119591140,0ptp4l0-21swapper/100:15:241
119591140,0ptp4l0-21swapper/023:35:210
119591140,0ptp4l0-21swapper/022:30:130
119591140,0ptp4l0-21swapper/022:00:220
119591140,0ptp4l0-21swapper/021:30:210
119591140,0ptp4l0-21swapper/021:25:230
119591140,0ptp4l0-21swapper/020:20:120
119591140,0ptp4l0-21swapper/020:00:230
119591140,0ptp4l0-21swapper/019:45:020
119591140,0ptp4l0-21swapper/019:44:080
119591140,0ptp4l0-21swapper/019:44:080
119591140,0ptp4l0-21swapper/000:20:210
1953699134,5cyclictest19532-21cyclictest00:15:142
119591130,1ptp4l2238-21ntp_kernel_pll_20:35:171
119591130,0ptp4l6749-21ls23:45:182
119591130,0ptp4l27669-21fschecks_count22:25:151
119591130,0ptp4l12707-21ls20:55:170
119591130,0ptp4l0-21swapper/223:05:142
119591130,0ptp4l0-21swapper/222:40:172
119591130,0ptp4l0-21swapper/222:20:232
119591130,0ptp4l0-21swapper/221:35:192
119591130,0ptp4l0-21swapper/221:25:152
119591130,0ptp4l0-21swapper/219:40:202
119591130,0ptp4l0-21swapper/219:40:192
119591130,0ptp4l0-21swapper/200:20:152
119591130,0ptp4l0-21swapper/200:05:232
119591130,0ptp4l0-21swapper/123:55:141
119591130,0ptp4l0-21swapper/123:30:131
119591130,0ptp4l0-21swapper/123:20:131
119591130,0ptp4l0-21swapper/123:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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