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2026-02-20 - 14:51
[ 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 #7, slot #4

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 rack7slot4s.osadl.org (updated Fri Feb 20, 2026 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2597799555,37cyclictest20788-21ssh11:40:122
2597799535,37cyclictest16793-21ssh10:25:132
2596299521,38cyclictest2093-21ssh10:35:110
2596299510,41cyclictest2822-21ssh11:30:120
2597299503,5cyclictest131rcu_preempt09:25:141
25977994938,8cyclictest9738-21apt-get08:00:142
25977994834,8cyclictest23115-21apt-get11:05:142
2598599477,25cyclictest28366irq/58-eth009:35:133
25977994620,10cyclictest0-21swapper/210:00:132
2597299462,37cyclictest26935-21ssh12:20:121
2596299463,32cyclictest13412-21ssh10:05:130
25977994533,8cyclictest24152-21apt-get08:15:122
25962994527,12cyclictest12-21ksoftirqd/012:25:110
2598599446,26cyclictest28366irq/58-eth011:25:153
25977994332,2cyclictest24740-21apt-get09:35:122
25977994315,12cyclictest15508-21ssh11:18:072
25977994315,12cyclictest15508-21ssh11:18:062
25977994232,7cyclictest8207-21apt-get07:25:142
25977994215,20cyclictest0-21swapper/209:20:132
25977994215,17cyclictest12170-21diskmemload10:32:012
2597799415,18cyclictest31463-21kworker/u8:010:40:112
25977994114,17cyclictest26158-21cat12:35:302
2596299417,24cyclictest12-21ksoftirqd/010:30:140
2597799409,12cyclictest0-21swapper/211:29:152
2597799403,28cyclictest32057-21ssh11:10:132
25977994016,14cyclictest6077-21/usr/sbin/munin11:50:282
25977993922,12cyclictest7888-21ssh10:20:142
25977993922,12cyclictest7888-21ssh10:20:132
25977993916,16cyclictest0-21swapper/212:10:122
25977993912,17cyclictest3218-21grep11:30:162
25977993912,10cyclictest27312-21irqcore12:20:182
2598599382,26cyclictest28366irq/58-eth012:25:123
2597799389,13cyclictest5785-21date11:50:022
25977993812,16cyclictest6766-21sh09:41:122
25977993812,13cyclictest19449-21fschecks_time09:50:152
25977993810,12cyclictest0-21swapper/207:45:202
25972993811,16cyclictest21-21ksoftirqd/107:40:111
25985993730,3cyclictest28366irq/58-eth010:50:133
2597799379,19cyclictest0-21swapper/212:31:422
2597799379,13cyclictest12523-21/usr/sbin/munin09:10:192
2597799379,13cyclictest12523-21/usr/sbin/munin09:10:182
2597799372,29cyclictest6406-21kthreadcore12:25:202
25977993714,14cyclictest0-21swapper/208:50:122
25977993712,17cyclictest23715-21ssh11:22:122
25977993712,12cyclictest27-21ksoftirqd/207:40:122
2597799368,10cyclictest0-21swapper/210:07:222
25977993621,11cyclictest21470-21apt-get09:15:122
25977993621,11cyclictest21470-21apt-get09:15:112
25977993620,12cyclictest2086-21ssh10:35:102
25977993617,9cyclictest1896-21ps08:25:182
25977993617,13cyclictest0-21swapper/210:10:132
25977993614,7cyclictest18924-21ssh11:38:122
25977993613,7cyclictest12170-21diskmemload09:30:102
25977993612,13cyclictest26281-21sh10:47:212
25977993611,10cyclictest0-21swapper/210:18:032
2597799358,6cyclictest0-21swapper/208:45:242
25977993517,15cyclictest22853-21grep08:10:282
25977993514,17cyclictest839-21munin-node09:25:122
25977993512,8cyclictest436-21sed10:50:302
25977993512,12cyclictest28021-21ssh09:55:032
25985993417,10cyclictest28366irq/58-eth011:20:143
25977993421,4cyclictest32627-21apt-get12:05:122
25977993416,15cyclictest924-21snmpd07:30:212
25977993416,15cyclictest27351-21memory12:00:232
25977993413,9cyclictest18057-21fschecks_count07:35:152
25977993411,13cyclictest20792-21sh11:02:362
25977993410,13cyclictest26853-21kthreadcore07:10:182
25977993410,11cyclictest22874-21sh11:59:202
25972993418,10cyclictest21-21ksoftirqd/110:40:131
2596299341,29cyclictest24768-21ssh09:35:140
25985993319,10cyclictest33-21ksoftirqd/309:05:123
25977993317,13cyclictest31265-21if_eth107:15:162
25977993314,15cyclictest7385-21munin-run09:05:012
25962993315,8cyclictest12-21ksoftirqd/011:35:120
2597799328,10cyclictest0-21swapper/208:35:282
25977993227,2cyclictest10228-21apt-get09:45:142
25977993216,8cyclictest1756-21timerwakeupswit08:55:282
25977993215,9cyclictest8510-21mailstats07:55:282
25977993212,11cyclictest26528-21cron12:20:012
25977993115,13cyclictest9059-21/usr/sbin/munin10:55:292
25977993115,12cyclictest0-21swapper/208:30:122
2596299313,24cyclictest20797-21ssh11:40:120
25977993025,2cyclictest29007-21apt-get08:20:122
25977993025,2cyclictest29007-21apt-get08:20:112
25977993017,10cyclictest15982-21df08:40:142
25977993016,7cyclictest19124-21sshd08:09:212
25977993015,12cyclictest7956-21sshd07:22:212
2597299303,23cyclictest73-21kswapd011:35:121
25962993021,4cyclictest17500-21ssh11:20:130
2596299301,19cyclictest26370-21ssh11:25:140
2596299292,22cyclictest1321-21ssh09:40:130
2596299292,22cyclictest1036-21cut09:20:220
25962992912,15cyclictest12-21ksoftirqd/012:00:130
2598599283,18cyclictest0-21swapper/310:18:213
2597799282,20cyclictest0-21swapper/209:05:132
25977992818,7cyclictest3545-21pluginstate07:50:252
2597299289,16cyclictest21-21ksoftirqd/108:00:021
2597299284,15cyclictest21-21ksoftirqd/109:15:121
2597299284,15cyclictest21-21ksoftirqd/109:15:111
2596299282,20cyclictest24785-21ssh10:29:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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