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2026-02-27 - 20:50
[ 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 #2, slot #7

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 rack2slot7s.osadl.org (updated Fri Feb 27, 2026 07:55:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2032483996761,4cyclictest2862849-21tee06:10:380
2032485996350,9cyclictest2860502-21sh06:10:302
2032484996139,18cyclictest2350329-21Run06:00:521
2032485995932,23cyclictest2273009-21tee05:40:332
2032485995631,22cyclictest2825596-21looper06:09:052
2032485995631,22cyclictest2825596-21looper06:09:052
2032484995629,24cyclictest2305892-21multi.sh05:41:551
2032483995545,7cyclictest2270464-21sh05:40:260
2032484995434,17cyclictest2874647-21wc06:11:091
2032484995434,17cyclictest2849382-21sh06:10:021
2032484995434,17cyclictest2849382-21sh06:10:021
2032483995339,10cyclictest2345687-21execl05:50:280
2032485995127,21cyclictest2925819-21/usr/sbin/munin06:30:122
2032483995036,11cyclictest2804958-21sh06:08:150
2032483995036,11cyclictest2804958-21sh06:08:150
2032484994730,14cyclictest0-21swapper/105:50:351
2032485994537,5cyclictest2265028-21munin-run05:40:002
2032485994434,6cyclictest1913992-21cups-browsed05:20:182
203248499441,35cyclictest2032726-21apt-get05:08:201
2032484994333,7cyclictest0-21swapper/105:55:591
2032483994331,9cyclictest2345439-21execl05:50:030
2032483994331,9cyclictest2345439-21execl05:50:030
2032483994320,14cyclictest151ktimers/006:00:250
2032485994234,5cyclictest2345688-21execl05:50:112
2032485994231,7cyclictest2350473-21Run06:02:102
2032485994227,12cyclictest0-21swapper/205:50:012
2032485994227,12cyclictest0-21swapper/205:50:012
2032485994226,13cyclictest0-21swapper/206:20:012
203248599421,6cyclictest2928006-21ntpq06:35:312
203248499421,35cyclictest2921892-21ntpq06:15:231
203248499421,34cyclictest2923427-21ntpq06:20:231
2032483994234,5cyclictest2922532-21sendmail06:20:010
2032485994133,5cyclictest2032801-21systemd-run05:10:012
2032485994131,6cyclictest2347579-21fstime05:55:262
2032485994121,17cyclictest0-21swapper/206:25:002
2032485994033,4cyclictest2036104-21latency_hist05:20:022
203248499401,35cyclictest2926393-21ntpq06:30:231
203248499401,34cyclictest2927969-21ntpq06:35:291
203248499401,34cyclictest2033746-21ntpq05:10:231
2032483994031,5cyclictest2230268-21munin-plugin-st05:35:010
2032483994031,5cyclictest2230268-21munin-plugin-st05:35:010
2032483994021,11cyclictest151ktimers/005:25:250
203248599392,5cyclictest2040023-21ntpq05:30:212
203248599392,5cyclictest2040023-21ntpq05:30:212
203248599392,5cyclictest2033690-21ntpq05:10:202
203248499392,32cyclictest2924892-21ntpq06:25:211
2032484993920,16cyclictest2345440-21execl05:49:431
2032484993920,16cyclictest2345440-21execl05:49:431
2032484993920,16cyclictest2039864-21latency05:30:181
2032484993920,16cyclictest2039864-21latency05:30:181
2032483993930,6cyclictest0-21swapper/005:15:240
2032483993921,15cyclictest2037356-21timerwakeupswit05:20:370
203248599382,18cyclictest2037764-21fstime05:25:222
203248499381,21cyclictest2037511-21execl05:20:491
2032483993826,9cyclictest2348611-21fstime05:57:450
203248599371,8cyclictest2925020-21ntpq06:25:282
203248499372,30cyclictest2230804-21fw_packets05:35:161
203248499371,31cyclictest2035330-21ntpq05:15:301
2032483993623,10cyclictest1-21systemd06:30:010
203248499351,30cyclictest2039102-21fstime05:28:261
2032483993524,7cyclictest151ktimers/006:30:290
203248599341,8cyclictest2032439-21/usr/sbin/munin05:05:002
2032483993325,5cyclictest0-21swapper/005:40:000
2032483993225,5cyclictest2923903-21tail06:20:330
2032483992821,4cyclictest2927551-21fschecks_time06:35:180
203248499271,22cyclictest564-21dbus-daemon05:05:001
203248399222,15cyclictest2033736-21ntpq05:10:220
2032483992012,5cyclictest2032482-21cyclictest05:05:000
203248699193,10cyclictest0-21swapper/305:56:133
203248699192,8cyclictest0-21swapper/306:00:223
203248699192,10cyclictest0-21swapper/305:50:313
2032483991914,3cyclictest2027003-21kworker/u8:30-nfsiod05:05:360
203248699187,7cyclictest0-21swapper/305:45:153
203248699187,7cyclictest0-21swapper/305:45:153
203248699182,9cyclictest0-21swapper/306:05:243
203248699182,9cyclictest0-21swapper/306:05:243
203248699182,11cyclictest0-21swapper/306:10:403
203248699163,6cyclictest0-21swapper/305:30:253
203248699163,6cyclictest0-21swapper/305:30:253
203248699162,7cyclictest0-21swapper/305:20:243
203248699162,6cyclictest0-21swapper/305:35:223
203248699153,7cyclictest0-21swapper/305:40:203
203248699151,6cyclictest0-21swapper/306:20:273
203248699150,7cyclictest0-21swapper/305:08:203
203248699142,6cyclictest0-21swapper/305:25:233
203248699141,6cyclictest0-21swapper/306:25:223
203248699141,6cyclictest0-21swapper/306:15:243
203248699141,6cyclictest0-21swapper/305:10:223
203248699133,6cyclictest0-21swapper/306:40:003
203248699122,6cyclictest0-21swapper/305:15:263
203248699121,5cyclictest0-21swapper/306:30:223
20324869971,3cyclictest0-21swapper/305:05:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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