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2025-12-05 - 03:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 rack0slot3s.osadl.org (updated Fri Dec 05, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5670072273264,6sleep70-21swapper/719:08:097
5669142272263,6sleep10-21swapper/119:06:591
5671122264218,16sleep50-21swapper/519:09:365
5669622262211,17sleep40-21swapper/419:07:344
5668972257212,15sleep20-21swapper/219:06:432
5671192253212,17sleep30-21swapper/319:09:413
5670342243217,17sleep60-21swapper/619:08:336
5669042241218,15sleep00-21swapper/019:06:500
567459993433,1cyclictest4150814-21kworker/7:0+events22:50:177
567441993017,12cyclictest0-21swapper/321:40:153
56744199290,27cyclictest0-21swapper/320:08:273
56745599280,24cyclictest0-21swapper/622:58:576
567424992821,6cyclictest1377-21snmpd22:33:110
567424992720,6cyclictest1377-21snmpd23:02:120
56745099260,22cyclictest0-21swapper/521:02:295
567441992622,3cyclictest1377-21snmpd21:58:043
567441992622,3cyclictest1377-21snmpd21:58:043
567441992622,3cyclictest1377-21snmpd00:18:173
567437992622,3cyclictest1377-21snmpd22:41:322
567459992521,3cyclictest1377-21snmpd23:39:107
567459992518,5cyclictest0-21swapper/719:46:507
56745999250,1cyclictest0-21swapper/720:06:157
567455992522,2cyclictest1377-21snmpd00:27:206
567455992522,2cyclictest1377-21snmpd00:27:206
567450992521,3cyclictest1377-21snmpd20:14:195
567450992521,3cyclictest1377-21snmpd19:21:445
56745099250,22cyclictest0-21swapper/519:47:515
567446992521,3cyclictest1377-21snmpd23:13:544
567446992521,3cyclictest1377-21snmpd22:17:044
567446992521,3cyclictest1377-21snmpd21:10:144
567446992518,5cyclictest0-21swapper/419:29:474
567446992518,5cyclictest0-21swapper/419:29:474
567446992518,3cyclictest0-21swapper/422:53:364
567446992518,3cyclictest0-21swapper/419:22:564
56744699250,25cyclictest0-21swapper/419:18:474
567441992521,3cyclictest1377-21snmpd22:35:593
567441992521,3cyclictest1377-21snmpd22:26:413
567441992521,3cyclictest1377-21snmpd20:44:373
567441992518,5cyclictest0-21swapper/320:26:043
56744199250,23cyclictest0-21swapper/323:18:473
56744199250,1cyclictest0-21swapper/321:51:193
567432992521,3cyclictest1377-21snmpd19:50:061
567432992521,3cyclictest1377-21snmpd19:32:561
567432992521,3cyclictest1377-21snmpd19:32:561
567424992521,3cyclictest1377-21snmpd23:32:070
567424992519,5cyclictest1377-21snmpd20:35:040
56742499250,22cyclictest0-21swapper/021:59:130
56742499250,22cyclictest0-21swapper/021:59:130
56742499250,22cyclictest0-21swapper/021:08:260
567459992417,5cyclictest0-21swapper/721:30:217
56745999240,22cyclictest0-21swapper/723:14:067
56745999240,22cyclictest0-21swapper/722:36:147
56745999240,22cyclictest0-21swapper/700:18:357
56745999240,22cyclictest0-21swapper/700:09:207
567455992420,3cyclictest1377-21snmpd21:27:036
567455992417,5cyclictest0-21swapper/623:46:286
567455992417,5cyclictest0-21swapper/619:55:546
56745599240,22cyclictest0-21swapper/622:25:176
56745599240,22cyclictest0-21swapper/600:07:386
56745599240,14cyclictest0-21swapper/621:45:586
56745599240,14cyclictest0-21swapper/621:39:586
56745599240,14cyclictest0-21swapper/619:42:596
567450992422,1cyclictest0-21swapper/500:05:035
567450992421,2cyclictest1377-21snmpd00:19:415
567450992420,3cyclictest1377-21snmpd22:43:535
567446992420,3cyclictest1377-21snmpd20:21:434
56744699240,22cyclictest0-21swapper/420:00:094
56744699240,1cyclictest0-21swapper/423:30:184
567441992418,4cyclictest0-21swapper/322:02:343
567441992418,4cyclictest0-21swapper/322:02:343
567441992412,11cyclictest0-21swapper/322:14:093
56744199240,23cyclictest0-21swapper/320:35:073
56744199240,22cyclictest0-21swapper/323:14:233
56744199240,22cyclictest0-21swapper/322:50:113
56744199240,22cyclictest0-21swapper/322:06:033
56744199240,22cyclictest0-21swapper/321:28:153
56744199240,22cyclictest0-21swapper/321:07:143
56744199240,22cyclictest0-21swapper/320:57:153
56744199240,22cyclictest0-21swapper/319:13:553
56744199240,1cyclictest0-21swapper/321:20:153
567437992420,3cyclictest1377-21snmpd19:56:062
567437992420,3cyclictest1377-21snmpd19:12:472
56743799240,23cyclictest0-21swapper/220:56:262
56743799240,23cyclictest0-21swapper/220:24:132
56743799240,23cyclictest0-21swapper/219:45:172
567432992421,3cyclictest1377-21snmpd22:09:551
567432992421,2cyclictest1377-21snmpd23:19:301
567432992417,5cyclictest0-21swapper/123:55:131
567432992417,5cyclictest0-21swapper/121:11:231
56743299240,23cyclictest2739-21gnome-shell20:21:591
56743299240,22cyclictest0-21swapper/120:45:341
56743299240,22cyclictest0-21swapper/100:25:201
56743299240,22cyclictest0-21swapper/100:25:201
567424992420,4cyclictest1377-21snmpd23:38:430
567424992420,3cyclictest667835-21cat22:10:180
567424992420,3cyclictest1377-21snmpd23:19:130
567424992419,4cyclictest1377-21snmpd22:00:130
567424992419,4cyclictest1377-21snmpd22:00:130
567424992417,5cyclictest0-21swapper/021:32:120
567424992417,5cyclictest0-21swapper/000:08:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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