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2026-07-03 - 03:17

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 Fri Jul 03, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
148986521340,3sleep30-21swapper/319:10:143
14920022970,3sleep13056-21PK-Backend19:15:131
139099850,51rtkit-daemon0-21swapper/219:08:572
148772627846,22sleep30-21swapper/319:05:123
148897227639,13sleep00-21swapper/019:07:060
148861327147,15sleep10-21swapper/119:05:251
15591972520,1sleep31559203-21grep22:25:223
15322952490,4sleep33056-21PK-Backend21:10:153
15492572400,3sleep01549251-21apt-config22:00:000
15827942390,3sleep10-21swapper/123:35:011
1489353992817,4cyclictest26-21ksoftirqd/121:20:011
16024242260,3sleep234-21ksoftirqd/200:30:152
15597742260,5sleep10-21swapper/122:30:001
1489353992611,4cyclictest26-21ksoftirqd/123:29:501
148935999251,20cyclictest1544034-21apt21:45:123
148935899250,23cyclictest1095-21runrttasks21:17:482
1489353992417,5cyclictest26-21ksoftirqd/123:55:001
139099240,16rtkit-daemon3056-21PK-Backend22:37:113
1489358992320,2cyclictest0-21swapper/200:04:042
148935399232,19cyclictest1554417-21grep22:15:001
139099230,14rtkit-daemon0-21swapper/200:35:542
15135562220,2sleep33056-21PK-Backend20:15:183
1489359992219,2cyclictest0-21swapper/322:15:123
1489359992216,5cyclictest883-21dbus-daemon21:38:023
148935999220,20cyclictest3056-21PK-Backend20:04:263
1489358992220,1cyclictest0-21swapper/222:33:392
1489358992220,1cyclictest0-21swapper/220:20:162
1489358992220,1cyclictest0-21swapper/219:40:072
1489358992219,2cyclictest0-21swapper/221:44:382
1489358992219,2cyclictest0-21swapper/219:32:442
1489358992217,3cyclictest1536806-21cron21:25:002
148935899220,20cyclictest3056-21PK-Backend20:25:022
1489353992220,1cyclictest0-21swapper/100:35:211
1489353992216,4cyclictest1510812-21sh20:10:001
1489353992215,5cyclictest1586173-21systemctl23:45:001
148935399220,20cyclictest3056-21PK-Backend19:29:271
1489350992211,9cyclictest1523191-21/usr/sbin/munin20:45:220
139099220,16rtkit-daemon3056-21PK-Backend20:51:423
139099220,15rtkit-daemon3056-21PK-Backend21:22:013
139099220,14rtkit-daemon0-21swapper/221:11:112
148935999210,1cyclictest3056-21PK-Backend00:38:493
148935999210,19cyclictest3056-21PK-Backend23:37:053
148935999210,19cyclictest3056-21PK-Backend22:47:573
148935999210,19cyclictest3056-21PK-Backend20:49:143
148935999210,19cyclictest3056-21PK-Backend20:12:373
148935999210,18cyclictest436-20systemd-journal19:30:443
1489358992119,1cyclictest0-21swapper/223:56:062
1489358992119,1cyclictest0-21swapper/223:19:292
1489358992119,1cyclictest0-21swapper/223:08:402
1489358992119,1cyclictest0-21swapper/223:03:412
1489358992119,1cyclictest0-21swapper/222:24:272
1489358992119,1cyclictest0-21swapper/222:16:352
1489358992119,1cyclictest0-21swapper/222:00:202
1489358992119,1cyclictest0-21swapper/221:32:152
1489358992119,1cyclictest0-21swapper/221:08:222
1489358992119,1cyclictest0-21swapper/220:14:552
1489358992119,1cyclictest0-21swapper/200:21:002
1489358992118,2cyclictest0-21swapper/221:39:182
1489358992113,6cyclictest1579315-21sed23:25:012
148935899210,20cyclictest0-21swapper/223:41:322
148935899210,20cyclictest0-21swapper/222:46:092
148935899210,20cyclictest0-21swapper/222:27:312
148935899210,20cyclictest0-21swapper/222:13:312
148935899210,20cyclictest0-21swapper/221:56:422
148935899210,20cyclictest0-21swapper/220:58:012
148935899210,20cyclictest0-21swapper/220:41:522
148935899210,20cyclictest0-21swapper/220:38:482
148935899210,20cyclictest0-21swapper/219:59:072
148935899210,20cyclictest0-21swapper/219:59:072
148935899210,1cyclictest0-21swapper/222:41:102
148935899210,1cyclictest0-21swapper/222:41:092
148935399218,11cyclictest1521249-21systemd20:40:011
1489353992119,1cyclictest3056-21PK-Backend22:17:521
1489353992119,1cyclictest3056-21PK-Backend21:59:201
1489353992119,1cyclictest3056-21PK-Backend19:44:351
1489353992119,1cyclictest3056-21PK-Backend00:14:181
1489353992119,1cyclictest0-21swapper/123:45:111
1489353992119,1cyclictest0-21swapper/123:01:251
1489353992119,1cyclictest0-21swapper/121:21:131
1489353992119,1cyclictest0-21swapper/121:10:061
1489353992119,1cyclictest0-21swapper/100:25:481
1489353992118,2cyclictest3056-21PK-Backend21:53:591
1489353992118,2cyclictest3056-21PK-Backend21:53:581
1489353992118,2cyclictest3056-21PK-Backend19:13:251
1489353992116,4cyclictest26-21ksoftirqd/100:00:011
1489353992115,4cyclictest1518210-21cpuspeed_turbos20:30:131
1489353992113,6cyclictest1600029-21cron00:25:011
1489353992113,6cyclictest1557364-21sed22:20:221
148935399210,20cyclictest3056-21PK-Backend19:36:361
148935399210,20cyclictest0-21swapper/120:47:421
148935399210,19cyclictest3056-21PK-Backend23:24:301
148935099210,20cyclictest0-21swapper/022:55:230
148935099210,19cyclictest3056-21PK-Backend00:05:210
139099210,15rtkit-daemon3056-21PK-Backend20:38:423
148935999209,8cyclictest1788610-21gdbus21:41:493
1489359992018,1cyclictest0-21swapper/319:15:043
1489359992018,1cyclictest0-21swapper/300:13:073
1489359992017,2cyclictest3056-21PK-Backend22:57:093
1489359992017,2cyclictest3056-21PK-Backend21:18:343
1489359992017,2cyclictest3056-21PK-Backend20:40:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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