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2025-11-29 - 17:04

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.

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 Sat Nov 29, 2025 12:39:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
579110996548,13cyclictest718649-21munin-run11:40:010
579112996046,9cyclictest3987647-21cupsd10:14:302
579110995643,7cyclictest151ktimers/012:09:200
579112995545,7cyclictest3987650-21cups-browsed07:14:202
579112995539,8cyclictest0-21swapper/210:04:182
579111994939,7cyclictest3987650-21cups-browsed12:08:371
579112994840,5cyclictest422-21dbus-daemon12:20:022
579111994838,6cyclictest266-21systemd-journal11:50:011
579110994828,15cyclictest730117-21ssh11:57:190
57911199472,37cyclictest662741-21ssh10:19:181
57911199472,37cyclictest662741-21ssh10:19:181
579111994636,7cyclictest718695-21systemd-run11:40:021
579110994637,6cyclictest607595-21systemd-run08:45:020
579110994635,5cyclictest0-21swapper/009:04:180
57911099462,36cyclictest687014-21ssh10:54:210
579112994536,5cyclictest701431-21munin-run11:15:012
579111994537,4cyclictest691235-21kworker/u8:7-rpciod11:57:201
579112994434,6cyclictest3987650-21cups-browsed09:19:552
579112994433,8cyclictest638958-21timerwakeupswit09:44:272
579111994438,3cyclictest0-21swapper/109:00:011
579110994432,8cyclictest674018-21cron10:35:000
579110994432,8cyclictest674018-21cron10:35:000
579112994335,5cyclictest632656-21systemd-run09:35:012
579112994334,6cyclictest711675-21grep11:30:012
579112994333,4cyclictest0-21swapper/212:34:162
579112994333,4cyclictest0-21swapper/212:34:162
579111994329,10cyclictest266-21systemd-journal09:58:121
579110994318,8cyclictest648663-21ntpq09:59:190
579111994233,6cyclictest653206-21systemd-run10:05:011
579111994230,7cyclictest422-21dbus-daemon10:24:251
579111994230,7cyclictest422-21dbus-daemon10:24:251
579110994233,6cyclictest0-21swapper/012:14:120
579110994232,7cyclictest619107-21systemd-run09:15:010
579110994215,8cyclictest726291-21sh11:51:420
579112994133,5cyclictest704862-21munin-run11:20:012
579112994132,6cyclictest680890-21true10:45:012
579112994130,8cyclictest718649-21munin-run11:40:012
579112994130,8cyclictest594078-21munin-run08:00:012
579111994131,6cyclictest750437-21sendmail_mailtr12:24:271
579110994130,8cyclictest12450irq/32-eth012:29:170
579110994115,18cyclictest0-21swapper/010:19:240
579110994115,18cyclictest0-21swapper/010:19:240
579110994115,15cyclictest0-21swapper/007:34:150
579112994031,6cyclictest1-21systemd08:20:012
579112994029,8cyclictest603097-21sh08:30:012
579112994029,8cyclictest603097-21sh08:30:012
579112994029,6cyclictest708271-21latency_hist11:25:022
579111994032,5cyclictest670520-21munin-plugin-st10:30:001
579111994032,5cyclictest670520-21munin-plugin-st10:30:001
579111994032,5cyclictest625855-21cron09:25:011
579111994031,6cyclictest684406-21munin-run10:50:011
579111994031,6cyclictest3987650-21cups-browsed07:19:281
579111994029,7cyclictest674106-21latency_hist10:35:021
579111994029,7cyclictest674106-21latency_hist10:35:021
57911199402,33cyclictest746496-21ssh12:19:221
579110994033,4cyclictest747399-21sendmail-msp12:20:010
579110994029,7cyclictest608563-21ntpq08:49:230
579110994027,8cyclictest598011-21ntpq08:14:210
579110994027,8cyclictest589009-21ntpq07:44:170
579110994027,8cyclictest589009-21ntpq07:44:170
579110994025,9cyclictest683671-21ntpq10:49:250
579110994024,12cyclictest652329-21ntpq10:04:190
579110994017,7cyclictest596493-21ntpq08:09:190
579112993930,6cyclictest607595-21systemd-run08:45:022
579112993919,14cyclictest351ktimers/208:49:222
579111993928,6cyclictest422-21dbus-daemon11:15:011
57911099393,28cyclictest757944-21ssh12:34:210
57911099393,28cyclictest757944-21ssh12:34:210
579110993925,9cyclictest580036-21ntpq07:14:180
579110993924,8cyclictest599558-21ntpq08:19:210
57911099392,29cyclictest703954-21ssh11:19:160
579110993915,5cyclictest0-21swapper/010:56:480
579110993913,12cyclictest748317-21ssh12:21:300
579112993829,6cyclictest636088-21latency_hist09:40:022
579112993829,6cyclictest266-21systemd-journal10:35:002
579112993829,6cyclictest266-21systemd-journal10:35:002
579112993828,7cyclictest491-21gdbus11:09:262
579112993826,8cyclictest738611-21latency12:09:142
579111993830,6cyclictest0-21swapper/111:55:011
579111993830,5cyclictest721847-21unixbench-2d11:44:311
579111993827,7cyclictest421-21avahi-daemon12:28:471
579110993831,4cyclictest694687-21systemd-run11:05:010
579110993830,4cyclictest0-21swapper/011:34:300
579110993828,7cyclictest660124-21munin-plugin-st10:15:010
579110993828,4cyclictest609989-21ntpq08:54:250
579110993827,5cyclictest666199-21ntpq10:24:160
579110993827,5cyclictest666199-21ntpq10:24:160
579110993826,8cyclictest595005-21ntpq08:04:180
579110993825,9cyclictest676544-21ntpq10:39:180
579110993825,9cyclictest676544-21ntpq10:39:180
579110993825,8cyclictest707282-21ntpq11:24:150
579110993825,8cyclictest601072-21ntpq08:24:260
579110993825,8cyclictest581520-21ntpq07:19:180
579110993814,9cyclictest644106-21sh09:53:200
579112993729,5cyclictest725507-21sh11:50:022
579112993729,4cyclictest0-21swapper/207:45:012
579112993729,4cyclictest0-21swapper/207:45:012
57911199377,22cyclictest697202-21sh11:09:181
579111993729,5cyclictest959-21mta-sts-daemon12:04:181
579110993727,4cyclictest0-21swapper/009:24:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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