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2026-07-24 - 02:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

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 rackbslot8s (updated Thu Jul 23, 2026 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19307952134121,8sleep70-21swapper/707:05:217
19308432120106,9sleep40-21swapper/407:05:344
19310812118103,10sleep20-21swapper/207:09:002
19309452118104,9sleep50-21swapper/507:07:035
19309162116101,10sleep30-21swapper/307:06:373
19308942115100,10sleep10-21swapper/107:06:181
1930949211196,10sleep00-21swapper/007:07:060
1930964211096,9sleep60-21swapper/607:07:216
19314009910398,3cyclictest553-21snmpd09:07:275
1931383991030,102cyclictest2069214-21ssh10:18:021
19313919910299,2cyclictest553-21snmpd11:19:133
19313919910299,2cyclictest553-21snmpd11:19:133
193139199102100,2cyclictest553-21snmpd07:57:333
19313879910299,3cyclictest553-21snmpd09:24:122
1931383991020,99cyclictest0-21swapper/109:12:231
1931383991020,102cyclictest0-21swapper/108:15:091
1931406991010,99cyclictest0-21swapper/709:06:157
19314029910199,1cyclictest553-21snmpd07:22:316
1931402991010,100cyclictest0-21swapper/609:02:546
19314009910199,2cyclictest553-21snmpd11:00:225
19314009910199,1cyclictest553-21snmpd12:24:235
193140099101100,1cyclictest553-21snmpd09:57:055
1931400991010,101cyclictest0-21swapper/507:10:325
1931400991010,0cyclictest0-21swapper/510:31:185
19313959910199,2cyclictest553-21snmpd09:42:524
19313959910199,2cyclictest553-21snmpd09:17:064
1931395991010,100cyclictest0-21swapper/411:33:254
19313919910199,2cyclictest553-21snmpd12:39:253
19313919910199,2cyclictest553-21snmpd10:28:033
19313919910199,2cyclictest553-21snmpd10:14:383
19313919910199,2cyclictest553-21snmpd08:01:333
193139199101100,1cyclictest553-21snmpd08:08:583
1931387991010,101cyclictest0-21swapper/212:25:582
1931387991010,101cyclictest0-21swapper/211:30:232
19313839910199,2cyclictest553-21snmpd08:06:161
19313839910199,1cyclictest553-21snmpd12:38:161
1931406991000,99cyclictest0-21swapper/711:48:507
1931406991000,99cyclictest0-21swapper/711:26:567
1931406991000,99cyclictest0-21swapper/711:18:557
1931406991000,99cyclictest0-21swapper/711:18:547
1931406991000,99cyclictest0-21swapper/710:56:197
1931406991000,99cyclictest0-21swapper/708:40:567
1931406991000,1cyclictest0-21swapper/709:58:257
1931406991000,100cyclictest0-21swapper/708:49:087
1931406991000,100cyclictest0-21swapper/708:00:167
19314029910099,1cyclictest553-21snmpd12:21:576
19314029910098,2cyclictest553-21snmpd11:16:526
19314029910098,2cyclictest553-21snmpd11:16:516
1931402991000,99cyclictest0-21swapper/611:00:046
1931402991000,100cyclictest0-21swapper/612:19:216
19314009910098,2cyclictest553-21snmpd10:52:055
19314009910098,2cyclictest553-21snmpd09:43:315
1931400991000,99cyclictest0-21swapper/512:05:395
1931400991000,99cyclictest0-21swapper/508:04:555
1931400991000,100cyclictest0-21swapper/510:11:205
1931400991000,100cyclictest0-21swapper/509:26:485
19313959910099,1cyclictest553-21snmpd11:28:024
19313959910099,1cyclictest553-21snmpd10:33:094
19313959910099,1cyclictest553-21snmpd07:36:574
19313959910098,2cyclictest553-21snmpd10:11:504
1931395991000,99cyclictest0-21swapper/411:13:004
1931395991000,99cyclictest0-21swapper/408:51:494
1931395991000,100cyclictest0-21swapper/409:56:324
1931395991000,100cyclictest0-21swapper/409:45:004
1931395991000,0cyclictest0-21swapper/412:17:394
19313919910099,1cyclictest553-21snmpd09:53:283
19313919910099,1cyclictest553-21snmpd09:15:383
19313919910098,2cyclictest553-21snmpd11:55:233
19313919910098,2cyclictest553-21snmpd10:30:243
19313919910098,2cyclictest553-21snmpd10:21:173
19313919910098,2cyclictest553-21snmpd09:38:073
19313919910097,3cyclictest553-21snmpd08:40:293
19313879910099,1cyclictest553-21snmpd11:38:082
19313879910099,1cyclictest553-21snmpd07:11:532
19313879910097,3cyclictest553-21snmpd11:18:492
19313879910097,3cyclictest553-21snmpd11:18:492
1931387991000,99cyclictest0-21swapper/209:39:252
1931387991000,99cyclictest0-21swapper/207:20:172
1931387991000,100cyclictest0-21swapper/210:07:172
19313839910099,1cyclictest553-21snmpd11:58:001
19313839910099,1cyclictest553-21snmpd09:42:151
19313839910099,1cyclictest553-21snmpd08:35:291
19313839910099,1cyclictest553-21snmpd07:40:451
19313839910099,1cyclictest553-21snmpd07:39:451
19313839910099,0cyclictest605-21lldpd07:55:451
19313839910097,3cyclictest553-21snmpd11:30:141
1931383991000,100cyclictest0-21swapper/108:14:071
19313789910099,1cyclictest553-21snmpd12:14:230
19313789910099,1cyclictest553-21snmpd07:37:330
19313789910099,1cyclictest0-21swapper/009:43:160
1931378991000,99cyclictest0-21swapper/012:15:480
1931378991000,99cyclictest0-21swapper/010:35:500
1931378991000,100cyclictest0-21swapper/011:17:280
1931378991000,100cyclictest0-21swapper/011:17:280
1931378991000,100cyclictest0-21swapper/010:58:010
1931378991000,100cyclictest0-21swapper/010:51:030
1931378991000,100cyclictest0-21swapper/010:11:350
1931378991000,100cyclictest0-21swapper/009:46:040
193140699990,99cyclictest0-21swapper/711:52:237
193140699990,99cyclictest0-21swapper/709:38:377
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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