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2026-06-23 - 07:25

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 rack7slot7s.osadl.org (updated Tue Jun 23, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11145210677,9sleep00-21swapper/019:05:420
1125329668,9sleep20-21swapper/219:07:032
1126428868,15sleep30-21swapper/319:07:123
1138428465,15sleep10-21swapper/119:08:471
1156899290,4cyclictest10120-21sleep20:15:002
1156299280,0cyclictest0-21swapper/022:08:010
1156299280,0cyclictest0-21swapper/022:08:010
1156299270,2cyclictest0-21swapper/023:48:560
1156899262,1cyclictest4143-21diskmemload22:22:172
1156899251,7cyclictest552-21cron19:54:592
1156899251,23cyclictest0-21swapper/221:46:432
1156899250,2cyclictest0-21swapper/223:00:152
1156899250,2cyclictest0-21swapper/222:41:432
1156899250,2cyclictest0-21swapper/219:25:112
1156899250,2cyclictest0-21swapper/200:20:142
1156299250,23cyclictest0-21swapper/022:29:350
1156299250,1cyclictest0-21swapper/022:42:390
1156899241,3cyclictest22422-21grep23:35:272
1156899240,3cyclictest0-21swapper/200:08:512
1156899240,2cyclictest0-21swapper/223:16:232
1156899240,1cyclictest0-21swapper/221:33:122
1156899231,1cyclictest0-21swapper/221:10:022
1156899230,2cyclictest0-21swapper/223:46:182
1156899230,23cyclictest0-21swapper/222:32:502
1156899230,1cyclictest0-21swapper/221:23:362
1156899230,1cyclictest0-21swapper/220:40:132
1156899221,21cyclictest0-21swapper/222:54:282
1156899220,3cyclictest0-21swapper/219:40:002
1156899220,1cyclictest0-21swapper/223:05:372
11564992210,9cyclictest15455-21df_abs21:55:141
1156299220,1cyclictest0-21swapper/022:24:030
1156899211,3cyclictest4143-21diskmemload23:11:282
1156899210,3cyclictest0-21swapper/221:39:072
1156899210,21cyclictest0-21swapper/200:12:492
1156899210,1cyclictest0-21swapper/223:42:212
11562992121,0cyclictest0-21swapper/022:54:330
1156299210,2cyclictest0-21swapper/000:21:210
1156299210,2cyclictest0-21swapper/000:01:520
1156299210,18cyclictest0-21swapper/023:58:120
1156299210,0cyclictest0-21swapper/021:22:190
1156899201,4cyclictest0-21swapper/220:45:212
1156899200,4cyclictest17557-21/usr/sbin/munin22:35:162
1156899200,3cyclictest0-21swapper/222:25:122
1156899200,18cyclictest0-21swapper/221:42:112
1156899200,0cyclictest0-21swapper/200:04:492
1156499200,17cyclictest0-21swapper/121:25:261
1156299200,0cyclictest0-21swapper/021:37:450
11570991915,2cyclictest6478-21hddtemp_smartct21:30:173
1156899196,6cyclictest17618-21ssh23:52:252
1156899196,6cyclictest17618-21ssh23:52:242
1156899193,1cyclictest4143-21diskmemload00:33:362
1156899192,1cyclictest4143-21diskmemload22:02:272
1156899192,1cyclictest0-21swapper/223:23:562
1156899190,3cyclictest0-21swapper/221:15:092
1156899190,1cyclictest0-21swapper/222:07:282
1156899190,1cyclictest0-21swapper/222:07:272
1156899190,0cyclictest0-21swapper/223:58:402
1156899190,0cyclictest0-21swapper/222:12:082
1156499190,3cyclictest0-21swapper/123:20:101
1156499190,1cyclictest0-21swapper/123:17:111
1156299190,1cyclictest0-21swapper/023:00:040
1156299190,1cyclictest0-21swapper/000:39:200
1157099188,8cyclictest0-21swapper/319:35:133
1156899185,7cyclictest27593-21ssh00:36:302
1156899182,1cyclictest840-21apt-get19:55:142
1156899181,3cyclictest21955-21rm22:18:332
1156899180,1cyclictest0-21swapper/223:29:402
1156899180,0cyclictest0-21swapper/222:57:362
11564991817,1cyclictest0-21swapper/100:36:351
11562991818,0cyclictest0-21swapper/022:00:450
1156299180,1cyclictest0-21swapper/023:41:160
1156299180,1cyclictest0-21swapper/022:57:520
1156299180,1cyclictest0-21swapper/000:07:270
1156299180,17cyclictest0-21swapper/021:40:110
1156899173,4cyclictest16370-21grep20:25:232
1156899172,2cyclictest4143-21diskmemload21:55:142
1156899171,2cyclictest4350-21uname20:00:202
1156899171,15cyclictest0-21swapper/222:45:142
1156899170,3cyclictest18448-21unamelversion20:30:192
1156499179,5cyclictest27855-21kworker/u8:000:15:021
1156299176,6cyclictest7746-21perf20:10:010
1156299170,2cyclictest0-21swapper/023:23:280
1156299170,1cyclictest0-21swapper/021:48:090
1156299170,16cyclictest0-21swapper/023:16:080
1156299170,13cyclictest0-21swapper/022:12:050
1156299170,0cyclictest0-21swapper/021:15:140
1157099164,8cyclictest21457-21/usr/sbin/munin23:55:123
1156899167,4cyclictest10302-21ssh00:26:082
1156899160,4cyclictest0-21swapper/221:50:162
1156899160,4cyclictest0-21swapper/220:55:262
1156899160,1cyclictest0-21swapper/200:16:542
11564991616,0cyclictest0-21swapper/122:37:231
11564991614,2cyclictest25-21ksoftirqd/121:35:131
11564991614,2cyclictest0-21swapper/122:57:221
1156499160,1cyclictest0-21swapper/123:45:141
1156499160,1cyclictest0-21swapper/123:44:231
1156299161,8cyclictest26780-21munin-run20:50:010
1156299160,4cyclictest0-21swapper/023:05:520
1156299160,0cyclictest0-21swapper/000:16:180
11570991511,2cyclictest19545-21cut19:25:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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