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2026-01-30 - 13:41
[ 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 #c, slot #8

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 rackcslot8s.osadl.org (updated Fri Jan 30, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
247642610,0sleep50-21swapper/523:05:525
1881916139,6phc2sys0-21swapper/119:08:231
111391610,30ptp4l0-21swapper/019:07:170
111391610,2ptp4l0-21swapper/519:05:165
1153426038,7sleep70-21swapper/719:09:017
111391590,5ptp4l0-21swapper/619:05:386
1142025747,6sleep20-21swapper/219:07:282
1158624938,6sleep40-21swapper/419:09:384
1114724634,7sleep30-21swapper/319:05:213
111391350,0ptp4l0-21swapper/021:48:360
111391330,4ptp4l0-21swapper/023:54:290
111391330,0ptp4l0-21swapper/323:11:203
111391330,0ptp4l0-21swapper/023:33:460
111391330,0ptp4l0-21swapper/000:00:520
111391320,0ptp4l0-21swapper/023:48:580
111391320,0ptp4l0-21swapper/022:54:130
111391320,0ptp4l0-21swapper/021:32:100
111391320,0ptp4l0-21swapper/020:40:200
111391320,0ptp4l0-21swapper/020:00:220
111391310,3ptp4l0-21swapper/023:29:410
111391310,0ptp4l0-21swapper/400:20:164
111391310,0ptp4l0-21swapper/122:37:401
111391310,0ptp4l0-21swapper/000:23:560
111391300,2ptp4l0-21swapper/123:58:001
111391300,0ptp4l0-21swapper/121:44:431
111391300,0ptp4l0-21swapper/119:10:101
111391300,0ptp4l0-21swapper/022:48:020
111391300,0ptp4l0-21swapper/021:58:100
111391300,0ptp4l0-21swapper/021:00:150
111391300,0ptp4l0-21swapper/000:15:140
111391290,5ptp4l0-21swapper/021:36:010
111391290,3ptp4l121rcu_preempt19:20:121
111391290,3ptp4l0-21swapper/022:07:100
111391290,0ptp4l0-21swapper/523:41:405
111391290,0ptp4l0-21swapper/523:18:535
111391290,0ptp4l0-21swapper/423:19:214
111391290,0ptp4l0-21swapper/121:26:441
111391290,0ptp4l0-21swapper/121:20:501
111391290,0ptp4l0-21swapper/100:35:341
111391290,0ptp4l0-21swapper/022:00:130
111391290,0ptp4l0-21swapper/021:29:530
111391280,2ptp4l0-21swapper/123:01:311
111391280,0ptp4l0-21swapper/523:56:465
111391280,0ptp4l0-21swapper/522:39:005
111391280,0ptp4l0-21swapper/423:45:074
111391280,0ptp4l0-21swapper/023:05:230
111391280,0ptp4l0-21swapper/022:40:570
111391280,0ptp4l0-21swapper/022:18:210
111391280,0ptp4l0-21swapper/022:18:210
111391280,0ptp4l0-21swapper/000:06:470
111391270,0ptp4l0-21swapper/423:20:134
111391270,0ptp4l0-21swapper/421:13:294
111391270,0ptp4l0-21swapper/421:05:004
111391270,0ptp4l0-21swapper/023:11:330
111391270,0ptp4l0-21swapper/021:44:220
111391270,0ptp4l0-21swapper/021:16:360
111391270,0ptp4l0-21swapper/021:10:030
111391270,0ptp4l0-21swapper/020:20:110
111391260,0ptp4l0-21swapper/523:01:055
111391260,0ptp4l0-21swapper/521:20:135
111391260,0ptp4l0-21swapper/520:03:265
111391260,0ptp4l0-21swapper/423:40:124
111391260,0ptp4l0-21swapper/422:56:224
111391260,0ptp4l0-21swapper/422:07:324
111391260,0ptp4l0-21swapper/421:48:244
111391260,0ptp4l0-21swapper/421:29:404
111391260,0ptp4l0-21swapper/421:15:214
111391260,0ptp4l0-21swapper/123:49:321
111391260,0ptp4l0-21swapper/121:10:191
111391260,0ptp4l0-21swapper/100:10:021
111391260,0ptp4l0-21swapper/023:21:570
111391260,0ptp4l0-21swapper/022:56:280
111391260,0ptp4l0-21swapper/022:29:220
111391250,3ptp4l12300-21unixbench_multi21:20:210
111391250,0ptp4l0-21swapper/423:36:304
111391250,0ptp4l0-21swapper/423:05:184
111391250,0ptp4l0-21swapper/422:29:394
111391250,0ptp4l0-21swapper/421:55:154
111391250,0ptp4l0-21swapper/421:30:204
111391250,0ptp4l0-21swapper/420:15:224
111391250,0ptp4l0-21swapper/420:05:104
111391250,0ptp4l0-21swapper/419:59:264
111391250,0ptp4l0-21swapper/419:40:134
111391250,0ptp4l0-21swapper/419:35:204
111391250,0ptp4l0-21swapper/419:35:194
111391250,0ptp4l0-21swapper/400:25:514
111391250,0ptp4l0-21swapper/400:05:214
111391250,0ptp4l0-21swapper/123:33:401
111391250,0ptp4l0-21swapper/120:14:171
111391250,0ptp4l0-21swapper/023:15:210
111391250,0ptp4l0-21swapper/021:05:210
111391250,0ptp4l0-21swapper/000:11:220
111391240,1ptp4l31715-21kernelversion19:50:154
111391240,1ptp4l30160-21fw_forwarded_lo22:30:130
111391240,1ptp4l29805-21threads20:55:184
111391240,1ptp4l28483-21users23:55:214
111391240,1ptp4l2515-21users19:55:200
111391240,1ptp4l23606-21netstat22:20:160
111391240,1ptp4l1807-21smartctl21:50:194
111391240,1ptp4l15596-21memory20:25:194
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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