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2026-06-27 - 06:53

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 Jun 27, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228916022260,8sleep20-21swapper/219:05:202
230129221400,4sleep20-21swapper/219:40:012
229896421300,3sleep13056-21PK-Backend19:30:211
228971527640,9sleep00-21swapper/019:05:580
23970962640,11sleep234-21ksoftirqd/200:10:112
228973326443,15sleep30-21swapper/319:06:133
228989626241,14sleep10-21swapper/119:08:201
23670722500,4sleep342-21ksoftirqd/322:45:123
23290482470,3sleep00-21swapper/020:55:170
23147052380,4sleep126-21ksoftirqd/120:15:171
2290255993119,7cyclictest1095-21runrttasks20:24:201
2290269993014,13cyclictest2354400-21perf22:10:003
2290255992818,7cyclictest436-20systemd-journal23:20:001
22969702270,8sleep013-21ksoftirqd/019:25:200
229026999274,21cyclictest1095-21runrttasks19:30:353
23516482260,9sleep126-21ksoftirqd/122:00:191
23516482260,9sleep126-21ksoftirqd/122:00:181
229026999250,5cyclictest2294303-21cron19:19:593
2290260992516,7cyclictest2291103-21/usr/sbin/munin19:10:162
2290260992413,9cyclictest2384688-21unin-run23:35:002
139099240,16rtkit-daemon3056-21PK-Backend23:49:143
229026999238,3cyclictest3056-21PK-Backend23:09:173
229026999232,2cyclictest42-21ksoftirqd/320:17:393
2290260992315,6cyclictest1788610-21gdbus20:55:272
2290255992316,5cyclictest2328147-21munin-run20:55:001
229025499230,6cyclictest2317295-21ld-2.23.so20:24:210
229025499230,4cyclictest2322988-21cut20:40:000
139099230,16rtkit-daemon3056-21PK-Backend20:40:163
139099230,15rtkit-daemon3056-21PK-Backend22:51:323
2290269992220,1cyclictest3056-21PK-Backend21:18:503
2290269992219,2cyclictest3056-21PK-Backend21:26:473
2290269992219,2cyclictest3056-21PK-Backend21:07:343
2290269992219,2cyclictest3056-21PK-Backend21:07:343
229026999220,20cyclictest3056-21PK-Backend20:49:163
229026999220,20cyclictest3056-21PK-Backend19:54:403
2290255992214,6cyclictest436-20systemd-journal23:49:591
229025599220,20cyclictest3056-21PK-Backend21:38:121
229025499228,13cyclictest13-21ksoftirqd/019:20:000
229025499225,6cyclictest13-21ksoftirqd/020:00:110
2290254992220,1cyclictest0-21swapper/022:04:030
2290254992220,1cyclictest0-21swapper/022:04:030
2290254992220,1cyclictest0-21swapper/021:24:420
2290254992220,1cyclictest0-21swapper/021:04:000
2290254992220,1cyclictest0-21swapper/020:53:400
2290254992220,1cyclictest0-21swapper/020:08:100
2290254992220,1cyclictest0-21swapper/019:51:010
2290254992220,1cyclictest0-21swapper/000:38:490
2290254992218,3cyclictest0-21swapper/019:33:090
229025499220,21cyclictest0-21swapper/021:54:020
2290269992119,1cyclictest3056-21PK-Backend23:21:043
2290269992119,1cyclictest3056-21PK-Backend22:38:263
2290269992119,1cyclictest3056-21PK-Backend20:55:593
2290269992119,1cyclictest3056-21PK-Backend19:57:393
2290269992119,1cyclictest3056-21PK-Backend00:12:353
2290269992119,1cyclictest0-21swapper/322:25:483
2290269992119,1cyclictest0-21swapper/321:41:273
2290269992119,1cyclictest0-21swapper/319:43:593
2290269992113,6cyclictest883-21dbus-daemon19:30:013
229026999210,20cyclictest3056-21PK-Backend23:42:423
229026999210,20cyclictest0-21swapper/321:35:393
229026999210,1cyclictest3056-21PK-Backend21:00:513
229026999210,19cyclictest3056-21PK-Backend21:53:043
229026999210,19cyclictest3056-21PK-Backend20:08:533
229026999210,19cyclictest3056-21PK-Backend20:04:283
229026999210,19cyclictest3056-21PK-Backend19:45:283
229026999210,19cyclictest3056-21PK-Backend19:13:243
2290260992113,6cyclictest883-21dbus-daemon19:35:002
229026099210,7cyclictest2317449-21netplan20:24:322
229026099210,20cyclictest0-21swapper/220:53:562
2290255992119,1cyclictest0-21swapper/123:41:341
2290255992112,7cyclictest883-21dbus-daemon22:50:011
229025599210,20cyclictest3056-21PK-Backend22:22:531
229025599210,20cyclictest0-21swapper/121:15:341
229025499217,4cyclictest13-21ksoftirqd/022:20:270
2290254992119,1cyclictest0-21swapper/023:16:020
2290254992119,1cyclictest0-21swapper/023:02:430
2290254992119,1cyclictest0-21swapper/023:02:430
2290254992119,1cyclictest0-21swapper/022:36:410
2290254992119,1cyclictest0-21swapper/022:31:540
2290254992119,1cyclictest0-21swapper/021:57:410
2290254992119,1cyclictest0-21swapper/019:37:550
2290254992115,5cyclictest13-21ksoftirqd/000:00:000
2290254992113,6cyclictest2353112-21expr22:05:120
2290254992113,6cyclictest2324933-21awk20:45:110
2290254992113,6cyclictest1-21systemd23:40:010
229025499210,20cyclictest0-21swapper/023:42:380
229025499210,20cyclictest0-21swapper/023:20:280
229025499210,20cyclictest0-21swapper/019:56:210
229025499210,1cyclictest0-21swapper/022:57:020
139099210,15rtkit-daemon3056-21PK-Backend00:38:313
23467232200,3sleep10-21swapper/121:45:221
2290269992018,1cyclictest3056-21PK-Backend21:55:473
2290269992018,1cyclictest3056-21PK-Backend00:18:093
2290269992018,1cyclictest0-21swapper/300:30:063
2290269992018,1cyclictest0-21swapper/300:20:463
2290269992013,4cyclictest2359312-21switchtime22:20:213
229026999200,7cyclictest2403161-21df_inode00:25:143
229026999200,1cyclictest3056-21PK-Backend23:12:123
229026999200,19cyclictest0-21swapper/323:39:093
229026999200,19cyclictest0-21swapper/323:30:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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