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2026-01-22 - 09:50
[ 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 #3, 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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 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 rack3slot6s.osadl.org (updated Thu Jan 22, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217132121110,6sleep10-21swapper/119:09:531
21352211795,15sleep30-21swapper/319:05:263
21472211496,12sleep20-21swapper/219:06:452
21620210178,18sleep00-21swapper/019:08:400
18272750,0sleep00-21swapper/021:40:160
251842730,0sleep20-21swapper/222:40:432
185992710,0sleep30-21swapper/321:23:283
290892700,0sleep00-21swapper/021:35:110
93902660,0sleep20-21swapper/222:24:202
8882570,1sleep10-21swapper/120:55:251
2175399200,19cyclictest39-21ksoftirqd/322:35:113
2175399200,19cyclictest39-21ksoftirqd/322:35:103
21750991815,2cyclictest5770-21kworker/u8:220:54:040
21751991712,3cyclictest0-21swapper/123:04:351
2175399161,13cyclictest7458-21runrttasks00:29:123
21751991611,3cyclictest19612-21iostat22:35:151
21751991611,3cyclictest19612-21iostat22:35:151
2175199160,14cyclictest0-21swapper/122:30:061
21750991613,2cyclictest5770-21kworker/u8:220:55:040
21750991612,3cyclictest1813-21kworker/u8:121:16:040
171672160,1sleep00-21swapper/022:32:270
2175399151,2cyclictest0-21swapper/320:45:103
21753991511,2cyclictest0-21swapper/322:25:073
2175299151,3cyclictest18302-21df20:20:122
21752991512,2cyclictest4513-21kworker/u8:123:01:042
21752991512,2cyclictest20670-21kworker/u8:123:30:042
21752991512,2cyclictest10508-21kworker/u8:223:40:042
2175199151,3cyclictest0-21swapper/121:43:081
2175199151,12cyclictest29857-21apt-get19:30:061
21751991510,3cyclictest105382sleep121:15:051
2175199150,2cyclictest0-21swapper/100:04:451
21750991512,2cyclictest20670-21kworker/u8:123:36:050
21750991512,2cyclictest0-21swapper/021:48:400
2175099150,2cyclictest0-21swapper/023:05:300
2175099150,14cyclictest0-21swapper/023:19:400
2175099150,13cyclictest29160-21ssh23:57:420
2175399149,3cyclictest6675-21snmpd00:16:083
2175399141,2cyclictest0-21swapper/300:30:243
21753991411,2cyclictest39-21ksoftirqd/322:15:133
21753991411,2cyclictest381ktimersoftd/323:09:533
2175399141,12cyclictest0-21swapper/323:29:063
2175399140,12cyclictest28710-21ssh23:56:523
2175399140,12cyclictest0-21swapper/321:54:133
2175399140,12cyclictest0-21swapper/321:42:443
21752991411,2cyclictest20000-21kworker/u8:121:45:042
21752991411,2cyclictest0-21swapper/222:25:082
21752991411,2cyclictest0-21swapper/221:29:482
21752991411,2cyclictest0-21swapper/219:20:182
21752991411,2cyclictest0-21swapper/200:34:082
2175299140,3cyclictest0-21swapper/222:12:192
2175299140,2cyclictest0-21swapper/223:18:082
2175299140,2cyclictest0-21swapper/222:57:382
2175299140,2cyclictest0-21swapper/222:17:282
2175299140,2cyclictest0-21swapper/222:00:102
2175299140,2cyclictest0-21swapper/220:54:052
2175299140,13cyclictest5459-21diskmemload21:15:092
2175299140,13cyclictest1112-21mailstats22:50:232
2175299140,13cyclictest0-21swapper/223:20:182
2175299140,13cyclictest0-21swapper/219:35:172
2175299140,13cyclictest0-21swapper/200:25:102
2175299140,13cyclictest0-21swapper/200:01:382
2175299140,12cyclictest21771-21munin-node2
2175299140,12cyclictest17863-21ssh21:22:122
2175299140,12cyclictest0-21swapper/222:45:252
21751991411,2cyclictest0-21swapper/122:59:051
21751991410,2cyclictest0-21swapper/123:20:211
2175199140,2cyclictest0-21swapper/123:34:451
2175199140,2cyclictest0-21swapper/122:12:551
2175199140,2cyclictest0-21swapper/121:30:251
2175199140,13cyclictest0-21swapper/121:59:251
2175199140,12cyclictest5459-21diskmemload23:40:121
2175199140,12cyclictest5459-21diskmemload23:39:371
2175199140,12cyclictest19212-21ssh23:45:521
2175199140,12cyclictest0-21swapper/122:46:551
2175199140,12cyclictest0-21swapper/121:27:361
2175199140,12cyclictest0-21swapper/100:38:361
21750991411,2cyclictest22093-21kworker/u8:219:25:040
21750991411,2cyclictest0-21swapper/023:50:280
21750991411,2cyclictest0-21swapper/000:14:140
2175099140,3cyclictest4897-21ssh00:06:260
2175099140,2cyclictest0-21swapper/023:40:200
2175099140,2cyclictest0-21swapper/022:15:120
2175099140,2cyclictest0-21swapper/019:20:110
2175099140,13cyclictest0-21swapper/023:33:200
2175099140,13cyclictest0-21swapper/022:01:200
2175099140,13cyclictest0-21swapper/021:32:100
2175099140,13cyclictest0-21swapper/021:26:100
2175099140,13cyclictest0-21swapper/000:37:400
2175099140,12cyclictest0-21swapper/023:20:230
2175099140,12cyclictest0-21swapper/023:03:510
2175099140,12cyclictest0-21swapper/022:44:030
2175099140,12cyclictest0-21swapper/022:20:130
2175399131,1cyclictest0-21swapper/323:22:023
21753991310,2cyclictest39-21ksoftirqd/323:16:323
21753991310,2cyclictest0-21swapper/323:50:023
21753991310,2cyclictest0-21swapper/323:43:433
21753991310,2cyclictest0-21swapper/322:24:313
21753991310,2cyclictest0-21swapper/319:50:123
21753991310,2cyclictest0-21swapper/319:50:113
21753991310,2cyclictest0-21swapper/300:24:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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