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2026-02-19 - 01:07
[ 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 Wed Feb 18, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31778995846,9cyclictest28366irq/58-eth011:55:143
3176799485,4cyclictest131rcu_preempt08:35:132
3175999471,38cyclictest16805-21ssh11:35:121
31751994532,10cyclictest15897-21apt-get09:45:120
31767994123,12cyclictest27-21ksoftirqd/207:20:122
3176799412,20cyclictest5122-21ssh09:38:042
3177899404,17cyclictest28366irq/58-eth008:25:133
31751993910,10cyclictest9150-21apt-get07:20:110
3177899384,22cyclictest28366irq/58-eth011:45:153
3176799381,29cyclictest924-21snmpd09:50:142
31751993812,12cyclictest27342-21ssh10:25:590
3176799371,14cyclictest15908-21ssh09:45:132
3175199379,8cyclictest11604-21ntp_192.168.11411:30:240
3175199379,8cyclictest11604-21ntp_192.168.11411:30:240
31751993712,8cyclictest15968-21ssh10:01:430
31751993711,9cyclictest23633-21/usr/sbin/munin08:05:230
31751993711,10cyclictest12963-21ssh12:08:550
31751993710,11cyclictest25745-21ssh09:13:320
31751993710,11cyclictest15441-21grep08:00:160
31751993710,10cyclictest13144-21ssh11:14:490
3177899366,18cyclictest0-21swapper/309:45:133
3175999360,29cyclictest30602-21ssh09:35:121
3175199369,8cyclictest7534-21ntp_192.168.11409:20:240
3175199368,8cyclictest22130-21ps09:30:170
31751993612,9cyclictest3713-21rm09:36:180
31751993612,8cyclictest28071-21ssh11:05:010
31751993612,8cyclictest28071-21ssh11:05:010
31751993612,8cyclictest17301-21ssh11:52:090
31751993612,7cyclictest0-21swapper/010:56:040
31751993611,10cyclictest7538-21if_eth108:25:180
31751993611,10cyclictest31992-21ssh11:42:130
31751993611,10cyclictest25106-21ssh10:45:030
31751993610,9cyclictest8771-21grep09:00:160
3175199359,9cyclictest8406-21munin-run09:00:010
3175199359,9cyclictest14078-21sendmail_mailtr07:55:260
3175199359,10cyclictest28090-21ssh10:10:150
3175199358,12cyclictest3522-21ssh10:30:400
31751993512,8cyclictest8099-21ssh10:52:300
31751993512,8cyclictest32010-21ntp_states11:05:260
31751993512,7cyclictest32503-21ssh12:37:170
31751993511,8cyclictest23366-21perl12:15:170
31751993511,10cyclictest7161-21ssh09:56:500
31751993511,10cyclictest12040-21ssh12:25:260
31751993510,9cyclictest7306-21ssh10:35:040
31751993510,11cyclictest6568-21ssh11:28:430
31751993510,11cyclictest13428-21cut09:25:180
31767993419,9cyclictest27-21ksoftirqd/211:50:182
3175199349,8cyclictest4487-21run-parts07:45:270
3175199349,11cyclictest17022-21fschecks_count08:35:160
3175199348,10cyclictest31610-21ssh09:53:040
3175199347,9cyclictest0-21swapper/007:25:110
3175199345,11cyclictest29219-21cut08:45:230
31751993420,10cyclictest25145-21apt-get08:10:120
31751993419,10cyclictest0-21swapper/011:20:130
31751993413,8cyclictest2402-21ntp_192.168.11408:50:230
31751993412,9cyclictest16703-21ssh11:35:070
31751993411,7cyclictest27291-21ssh09:15:100
31751993411,10cyclictest26192-21cat08:40:270
31751993410,6cyclictest2064-21ssh11:45:030
31751993410,10cyclictest4593-21ssh12:20:430
31751993410,10cyclictest26159-21ssh11:56:590
31778993315,10cyclictest28366irq/58-eth009:40:123
3176799339,14cyclictest27-21ksoftirqd/211:25:202
3175999331,24cyclictest10488-21ssh10:55:141
3175999330,22cyclictest32025-21sh12:20:131
3175199339,8cyclictest31796-21date07:10:020
3175199339,8cyclictest23459-21ssh12:32:040
3175199339,8cyclictest1782-21ssh12:00:580
3175199339,8cyclictest1782-21ssh12:00:580
3175199339,10cyclictest3278-21cut08:20:190
31751993326,4cyclictest0-21swapper/009:05:130
31751993312,10cyclictest21513-21ssh10:40:540
31751993311,8cyclictest19144-21ssh10:21:450
31751993311,8cyclictest19144-21ssh10:21:450
31751993311,7cyclictest18090-21diskmemload10:16:370
31751993310,8cyclictest22572-21sed10:05:230
31751993310,10cyclictest16916-21ssh11:15:230
31751993310,10cyclictest12050-21/usr/sbin/munin08:30:270
3176799321,16cyclictest0-21swapper/207:35:102
3175199326,10cyclictest7056-21cut07:15:230
31751993212,15cyclictest12820-21ssh09:41:350
31751993211,10cyclictest9135-21ntpq07:50:260
3177899313,18cyclictest28366irq/58-eth008:15:133
3177899312,20cyclictest28366irq/58-eth009:15:133
3177899311,15cyclictest28366irq/58-eth009:25:123
3176799319,9cyclictest27-21ksoftirqd/212:00:152
3176799319,9cyclictest27-21ksoftirqd/212:00:142
3176799316,16cyclictest27-21ksoftirqd/212:12:332
3176799315,19cyclictest27-21ksoftirqd/209:10:332
3176799314,19cyclictest27-21ksoftirqd/210:35:192
31767993112,7cyclictest0-21swapper/212:06:172
3175199319,8cyclictest20112-21sh12:11:430
3175199318,7cyclictest0-21swapper/007:35:220
3175199317,10cyclictest23394-21cron07:35:010
3176799304,20cyclictest27-21ksoftirqd/209:31:092
3176799303,17cyclictest0-21swapper/209:05:162
31767993015,4cyclictest27-21ksoftirqd/209:30:002
31767993012,11cyclictest0-21swapper/210:28:152
31767993011,13cyclictest0-21swapper/210:11:362
31767993010,11cyclictest27-21ksoftirqd/208:25:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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