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2026-07-24 - 13:37

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot3s.osadl.org (updated Fri Jul 24, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58812237163,25sleep20-21swapper/219:07:402
57562237163,24sleep30-21swapper/319:06:043
57282236163,25sleep00-21swapper/019:05:400
58802234162,24sleep10-21swapper/119:07:391
315732790,4sleep20-21swapper/220:05:152
255602680,2sleep00-21swapper/019:50:190
6154996460,3cyclictest0-21swapper/220:48:012
183352570,1sleep20-21swapper/219:35:122
327302470,1sleep20-21swapper/222:35:122
275962440,2sleep30-21swapper/323:35:203
614499329,11cyclictest20313-21perf00:35:010
616099301,13cyclictest9478-21cstates19:15:143
616099301,12cyclictest0-21swapper/320:45:543
24532290,4sleep339-21rcuc/321:25:183
615499281,14cyclictest0-21swapper/221:15:172
615099282,4cyclictest9313-21munin-run00:10:011
615099282,4cyclictest9313-21munin-run00:10:001
614499280,13cyclictest22504-21idleruntime-cro00:40:010
99772270,4sleep121-21rcuc/119:15:171
616099270,12cyclictest0-21swapper/319:58:553
614499272,12cyclictest7106-21munin-run00:05:000
6154992610,3cyclictest19058-21awk22:05:022
56962260,3sleep24486-21/usr/sbin/munin22:45:242
6150992511,13cyclictest1440-21kworker/u8:121:02:481
615099250,17cyclictest0-21swapper/119:35:171
614499251,12cyclictest6464-21munin-run22:50:000
197652250,4sleep121-21rcuc/123:20:021
616099241,9cyclictest12802-21ntp_states00:15:243
616099241,13cyclictest0-21swapper/323:45:253
616099241,13cyclictest0-21swapper/321:40:013
616099241,10cyclictest0-21swapper/321:57:533
615099244,7cyclictest0-21swapper/119:28:251
615099244,7cyclictest0-21swapper/119:28:251
615099241,3cyclictest13763-21wc00:20:011
615099241,20cyclictest12448-21munin-run21:50:011
615099241,20cyclictest12448-21munin-run21:50:011
616099239,3cyclictest0-21swapper/321:00:123
616099231,14cyclictest0-21swapper/321:08:283
616099230,14cyclictest0-21swapper/322:45:143
615499233,9cyclictest31560-21sed23:45:162
615499231,10cyclictest11368-21cat19:20:012
615099232,17cyclictest28260-21irqstats21:10:191
615099231,19cyclictest327562sleep123:49:041
615099231,16cyclictest0-21swapper/121:15:371
615099231,12cyclictest10480-21missed_timers00:10:201
615099231,12cyclictest0-21swapper/119:50:181
616099228,4cyclictest29641-21/usr/sbin/munin21:15:133
616099227,10cyclictest0-21swapper/322:35:063
616099222,11cyclictest24076-21fschecks_count22:15:153
615499227,3cyclictest0-21swapper/220:35:322
615499227,3cyclictest0-21swapper/220:35:322
615499223,9cyclictest32-21ksoftirqd/223:35:012
615499221,10cyclictest17781-21sort23:15:112
615499221,10cyclictest10240-21latency_hist21:45:012
615099222,18cyclictest0-21swapper/119:33:201
615099221,19cyclictest0-21swapper/120:10:181
615099221,11cyclictest7106-21munin-run00:05:011
614499228,6cyclictest0-21swapper/023:36:510
614499227,3cyclictest16669-21kworker/0:023:26:080
614499224,7cyclictest15466-40dnf19:28:250
614499224,7cyclictest15466-40dnf19:28:250
614499220,11cyclictest0-21swapper/023:55:260
614499220,10cyclictest0-21swapper/022:25:040
616099218,3cyclictest0-21swapper/322:00:533
616099218,1cyclictest0-21swapper/320:04:073
616099212,4cyclictest21608-21if_enp2s020:55:183
616099211,9cyclictest0-21swapper/319:47:333
616099211,6cyclictest0-21swapper/321:20:133
616099211,5cyclictest0-21swapper/323:44:443
6160992115,4cyclictest16983-21sed23:10:273
615499214,8cyclictest23073-21needreboot23:25:182
615499213,9cyclictest25015-21crond21:05:012
615499213,9cyclictest12050irq/123-ahci[0022:00:022
615499213,5cyclictest1-21systemd19:30:002
615499213,5cyclictest1-21systemd19:30:002
615499211,9cyclictest27213-21diskmemload22:15:022
615499211,6cyclictest0-21swapper/221:37:382
615499211,10cyclictest7265-21cut19:10:192
615499211,10cyclictest579-21systemd-journal00:40:022
615099211,9cyclictest0-21swapper/100:31:561
6150992117,2cyclictest0-21swapper/119:10:211
615099211,3cyclictest773-21NetworkManager23:23:091
615099211,3cyclictest2481-21sshd23:52:371
615099211,18cyclictest0-21swapper/123:28:181
615099211,18cyclictest0-21swapper/123:04:081
615099211,18cyclictest0-21swapper/119:45:141
615099211,11cyclictest8725-21ntp_states20:25:201
615099211,11cyclictest5676-21processes22:45:231
615099211,11cyclictest26823-21grep21:05:261
615099211,11cyclictest15809-21cstates23:10:131
615099211,10cyclictest13549-21latency21:50:211
6150992110,3cyclictest27541-21ntp_states23:35:201
6150992110,2cyclictest21-21rcuc/120:00:171
615099210,19cyclictest0-21swapper/121:20:261
615099210,11cyclictest0-21swapper/119:55:201
614499216,2cyclictest87350irq/126-enp1s0-22:42:550
614499215,8cyclictest27213-21diskmemload23:13:350
614499214,4cyclictest9320-21awk00:10:000
614499214,4cyclictest9320-21awk00:10:000
614499211,17cyclictest21251-21idleruntime-cro22:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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