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2026-05-23 - 13:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, 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.
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 rackcslot7s.osadl.org (updated Sat May 23, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
344463222400,8sleep10-21swapper/119:05:131
352948321260,2sleep13056-21PK-Backend22:30:131
345687421180,3sleep20-21swapper/219:37:082
139099870,74rtkit-daemon0-21swapper/319:07:053
344440626738,22sleep00-21swapper/019:05:090
344583426642,17sleep20-21swapper/219:09:252
35090232580,2sleep1883-21dbus-daemon21:45:351
34769622490,2sleep30-21swapper/320:35:103
35386212430,2sleep20-21swapper/222:55:122
35386212430,2sleep20-21swapper/222:55:122
35344152410,3sleep13056-21PK-Backend22:45:001
3446057993120,10cyclictest42-21ksoftirqd/321:46:253
3446053993025,4cyclictest34-21ksoftirqd/221:45:432
35267932280,5sleep10-21swapper/122:20:221
35025272280,3sleep03056-21PK-Backend21:44:280
3446057992814,12cyclictest42-21ksoftirqd/323:31:463
3446057992722,3cyclictest913-21gdbus22:24:283
3446053992722,4cyclictest34-21ksoftirqd/221:44:262
3446047992712,12cyclictest883-21dbus-daemon21:46:240
3446057992614,9cyclictest883-21dbus-daemon21:44:253
344605799252,20cyclictest0-21swapper/322:35:113
3446047992516,7cyclictest883-21dbus-daemon22:24:170
139099250,4rtkit-daemon1389-21rtkit-daemon23:36:261
344605799240,23cyclictest3453906-21apt19:30:113
344605799240,23cyclictest0-21swapper/300:05:013
3446053992417,5cyclictest436-20systemd-journal22:35:002
3446053992417,5cyclictest3476672-21sshd20:35:072
3446049992420,3cyclictest26-21ksoftirqd/121:45:001
139099240,4rtkit-daemon1389-21rtkit-daemon23:43:280
34684502230,3sleep03056-21PK-Backend20:10:170
344605799237,14cyclictest42-21ksoftirqd/323:15:003
344605799230,21cyclictest3535022-21df22:45:123
344605799230,11cyclictest35388152if_enp2s022:55:153
344605799230,11cyclictest35388152if_enp2s022:55:153
3446049992320,2cyclictest3056-21PK-Backend22:28:561
3446049992320,2cyclictest3056-21PK-Backend19:51:201
344604999230,21cyclictest0-21swapper/120:16:281
3446047992315,6cyclictest1-21systemd22:15:000
139099230,4rtkit-daemon1389-21rtkit-daemon23:37:410
34921872220,4sleep2331rcuc/221:20:002
344605799225,15cyclictest3474733-21unin-run20:30:003
3446057992220,1cyclictest3056-21PK-Backend22:09:303
3446057992220,1cyclictest0-21swapper/320:17:503
3446057992220,1cyclictest0-21swapper/320:08:163
3446057992218,3cyclictest3525496-21cron22:20:013
3446057992217,4cyclictest42-21ksoftirqd/300:15:003
3446057992215,6cyclictest3552909-21seq23:35:113
3446057992213,6cyclictest3530832-21cron22:35:003
3446057992212,9cyclictest978-21snmpd00:16:193
3446057992210,8cyclictest883-21dbus-daemon23:21:453
344605799220,3cyclictest3452906-21ntp_states19:25:183
344605399220,21cyclictest0-21swapper/200:27:222
3446049992220,1cyclictest0-21swapper/123:45:081
3446049992220,1cyclictest0-21swapper/120:20:261
3446049992220,1cyclictest0-21swapper/100:31:111
3446047992213,7cyclictest3483385-21apt20:55:000
3446057992119,1cyclictest3056-21PK-Backend21:06:503
3446057992119,1cyclictest0-21swapper/322:13:293
3446057992119,1cyclictest0-21swapper/321:33:063
3446057992119,1cyclictest0-21swapper/320:12:153
3446057992119,1cyclictest0-21swapper/319:59:453
3446057992119,1cyclictest0-21swapper/319:41:473
3446057992119,1cyclictest0-21swapper/300:00:223
3446057992118,2cyclictest3056-21PK-Backend23:46:573
3446057992113,6cyclictest1-21systemd23:20:003
344605799210,20cyclictest3056-21PK-Backend23:43:053
344605799210,20cyclictest0-21swapper/319:23:553
344605799210,19cyclictest3056-21PK-Backend00:27:333
3446053992119,1cyclictest0-21swapper/223:59:442
3446053992116,4cyclictest34-21ksoftirqd/222:37:252
3446053992114,6cyclictest883-21dbus-daemon00:10:002
3446053992114,5cyclictest3472648-21sshd20:21:072
3446053992113,6cyclictest3489710-21python321:10:202
3446053992112,7cyclictest913-21gdbus23:21:562
344605399210,20cyclictest1095-21runrttasks19:47:522
344605399210,20cyclictest0-21swapper/219:22:102
344605399210,1cyclictest0-21swapper/221:09:582
3446049992119,1cyclictest3056-21PK-Backend21:36:241
3446049992119,1cyclictest3056-21PK-Backend20:33:441
3446049992119,1cyclictest3056-21PK-Backend00:15:221
3446049992119,1cyclictest0-21swapper/123:50:011
3446049992119,1cyclictest0-21swapper/120:42:571
3446049992119,1cyclictest0-21swapper/119:18:151
3446049992119,1cyclictest0-21swapper/119:18:141
3446049992119,1cyclictest0-21swapper/100:37:401
3446049992119,1cyclictest0-21swapper/100:26:311
344604999210,20cyclictest3056-21PK-Backend19:42:271
344604999210,20cyclictest0-21swapper/122:02:541
344604999210,20cyclictest0-21swapper/122:02:541
344604999210,19cyclictest3056-21PK-Backend22:17:001
344604999210,19cyclictest3056-21PK-Backend19:57:141
344604999210,19cyclictest3056-21PK-Backend19:21:321
3446047992119,1cyclictest0-21swapper/022:30:210
3446047992118,2cyclictest3056-21PK-Backend21:08:210
3446047992118,2cyclictest3056-21PK-Backend20:25:440
3446047992112,7cyclictest3517504-21hddtemp_smartct21:55:150
344604799210,20cyclictest0-21swapper/022:51:160
344604799210,20cyclictest0-21swapper/022:51:160
139099210,4rtkit-daemon1389-21rtkit-daemon21:50:251
3446057992018,1cyclictest3056-21PK-Backend00:35:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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