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2026-03-07 - 12:14

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #3

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 rackeslot3s.osadl.org (updated Fri Mar 06, 2026 12:45:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3390199105101,2cyclictest0-21swapper/012:00:030
3390199832,5cyclictest44375-21sshd09:19:170
33901998316,6cyclictest16850irq/134-800000010:56:390
33901998215,7cyclictest42541-21sed09:15:020
33901998014,61cyclictest16850irq/134-800000011:52:550
3390199773,7cyclictest51314-21munin-run09:35:010
3390199771,58cyclictest125781-21ssh12:21:250
33906997634,37cyclictest275-21dbus-daemon07:20:001
33906997632,40cyclictest78172-21sed10:35:021
33901997619,7cyclictest16850irq/134-800000009:39:440
33901997524,47cyclictest16950irq/224-800000011:56:440
33901997516,54cyclictest16850irq/134-800000010:18:470
3390199741,68cyclictest0-21swapper/011:11:270
3390199741,3cyclictest0-21swapper/009:46:530
33901997327,30cyclictest0-21swapper/012:34:040
33901997317,46cyclictest16850irq/134-800000010:42:230
33901997317,46cyclictest16850irq/134-800000010:42:220
3390199731,68cyclictest86433-21sh10:53:370
3390199731,67cyclictest0-21swapper/010:24:400
33901997226,29cyclictest0-21swapper/011:33:260
33901997221,17cyclictest106667-21ssh11:39:030
33901997221,12cyclictest66436-21ssh10:08:500
33901997221,12cyclictest66436-21ssh10:08:490
33901997217,12cyclictest78947-21ssh10:36:410
3390199713,63cyclictest275-21dbus-daemon08:20:010
33901997120,47cyclictest16950irq/224-800000012:10:010
33901997120,47cyclictest16950irq/224-800000012:10:010
33906997023,42cyclictest3467602-21systemd-journal11:20:001
33901997016,49cyclictest16850irq/134-800000011:25:270
33901997016,49cyclictest16850irq/134-800000011:25:260
33906996915,48cyclictest275-21dbus-daemon12:20:011
33901996924,42cyclictest0-21swapper/010:28:200
3390199691,64cyclictest0-21swapper/009:29:180
3390199691,64cyclictest0-21swapper/009:29:170
33901996827,37cyclictest83428-21sh10:46:340
3390199682,6cyclictest64746-21munin-run10:05:000
3390199681,62cyclictest0-21swapper/012:38:140
3390699671,12cyclictest125901-21sshd12:21:441
33901996720,13cyclictest127884-21ssh12:26:050
33901996720,13cyclictest127884-21ssh12:26:050
3390199671,61cyclictest0-21swapper/012:10:120
3390199671,3cyclictest0-21swapper/011:03:080
33901996713,7cyclictest16850irq/134-800000009:24:310
33906996631,31cyclictest82553-21latency_hist10:45:021
33906996631,31cyclictest82553-21latency_hist10:45:011
33906996623,39cyclictest73713-21wc10:25:011
33901996622,40cyclictest92611-21ssh11:07:160
33906996526,34cyclictest85185-21sh10:50:281
33901996522,39cyclictest97107-21rm11:17:170
33901996520,8cyclictest49090-21kworker/u8:009:51:470
33906996425,35cyclictest94891-21sh11:12:261
3390699641,15cyclictest131702-21munin-run12:35:001
3390699641,12cyclictest89916-21ssh11:01:081
33901996418,14cyclictest62092-21ssh09:59:110
3390699632,12cyclictest121322-21ssh12:11:251
3390699631,13cyclictest47237-21ssh09:25:181
3390699631,13cyclictest47237-21ssh09:25:181
3390699631,11cyclictest63571-21ssh10:02:151
3390199636,16cyclictest69136-21grep10:15:000
33901996330,29cyclictest3467602-21systemd-journal08:00:010
33901996330,29cyclictest3467602-21systemd-journal08:00:010
3390199631,58cyclictest0-21swapper/010:32:440
3390199631,57cyclictest0-21swapper/011:47:500
33901996313,6cyclictest16850irq/134-800000011:40:540
33912996214,12cyclictest37-21ksoftirqd/312:32:053
33906996227,31cyclictest23-21ksoftirqd/109:57:181
3390699622,16cyclictest39850-21modprobe09:05:001
33906996221,37cyclictest117743-21sh12:03:411
3390699621,14cyclictest364-21snmpd10:59:201
3390699621,12cyclictest44963-21ssh09:20:161
3390199623,54cyclictest0-21swapper/007:30:440
3390199622,21cyclictest35432-21munin-plugin-st07:39:590
3391299619,15cyclictest44261-21ssh09:19:013
33912996117,9cyclictest37-21ksoftirqd/312:25:013
33906996123,34cyclictest92200-21sh11:06:171
3390699612,16cyclictest39329-21munin-run08:55:011
3390699612,16cyclictest114555-21ssh11:56:181
3390699612,14cyclictest37009-21/usr/sbin/munin08:10:011
33906996119,38cyclictest40075-21kworker/u8:009:12:581
33901996120,37cyclictest99369-21rm11:22:230
3390699602,18cyclictest110848-21ssh11:48:151
3390699602,14cyclictest364-21snmpd10:27:551
3390699602,13cyclictest48-21kcompactd011:35:051
3390699602,13cyclictest38307-21munin-run08:35:011
33906996020,36cyclictest50459-21sh09:32:541
33906996019,37cyclictest44421-1kworker/u9:009:39:251
3390699601,14cyclictest60133-21sshd09:54:441
33901996017,37cyclictest0-21swapper/007:20:010
3390199601,25cyclictest124293-21ssh12:18:220
33912995911,10cyclictest37-21ksoftirqd/310:26:293
33906995925,31cyclictest23-21ksoftirqd/111:43:031
3390699592,13cyclictest99137-21sh11:21:501
3390699591,16cyclictest78417-21ssh10:35:251
33912995835,17cyclictest3467602-21systemd-journal10:49:443
33910995849,5cyclictest38597-21kworker/2:209:27:272
33910995849,5cyclictest38597-21kworker/2:209:27:272
33910995849,5cyclictest107140-21kworker/2:112:21:522
33906995833,22cyclictest23-21ksoftirqd/111:30:201
3390699582,16cyclictest119143-21ssh12:06:371
3390699582,16cyclictest119143-21ssh12:06:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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