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2026-06-26 - 06:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #5

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 rackeslot5s.osadl.org (updated Fri Jun 26, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10925992820,7cyclictest25290-21munin-plugin-st22:55:001
1092599270,26cyclictest13238-21ssh21:45:421
1092999260,25cyclictest930-21sh22:32:222
10925992623,3cyclictest0-21swapper/122:29:481
10925992623,3cyclictest0-21swapper/121:21:591
10925992620,5cyclictest0-21swapper/121:28:291
10925992619,6cyclictest32738-21ssh22:31:351
1092599260,25cyclictest934-21sh22:03:481
1092599260,25cyclictest0-21swapper/122:37:531
1092599260,25cyclictest0-21swapper/100:17:361
1092599260,21cyclictest0-21swapper/122:19:161
1092599260,21cyclictest0-21swapper/121:36:141
1092599260,1cyclictest0-21swapper/100:01:071
1093299250,24cyclictest34-21ksoftirqd/322:51:223
1093299250,24cyclictest34-21ksoftirqd/321:53:143
1093299250,24cyclictest331rcuc/300:25:393
10929992523,1cyclictest0-21swapper/223:00:282
10929992520,4cyclictest0-21swapper/222:17:012
1092999251,23cyclictest4175-21diskmemload22:25:122
1092999250,24cyclictest4175-21diskmemload22:00:112
10925992523,1cyclictest0-21swapper/100:24:161
10925992520,4cyclictest4175-21diskmemload23:26:561
10925992520,4cyclictest0-21swapper/122:20:501
10925992520,1cyclictest151rcu_preempt22:40:381
1092599250,24cyclictest4175-21diskmemload23:19:281
1092599250,24cyclictest0-21swapper/123:12:191
1092599250,24cyclictest0-21swapper/122:59:121
1092599250,24cyclictest0-21swapper/122:47:121
1092599250,24cyclictest0-21swapper/122:10:261
1092599250,0cyclictest0-21swapper/123:54:351
1092599250,0cyclictest0-21swapper/121:31:531
1092599250,0cyclictest0-21swapper/121:16:001
1092299250,24cyclictest4175-21diskmemload22:22:380
1092299250,24cyclictest0-21swapper/000:35:180
1092299250,23cyclictest0-21swapper/021:14:120
10932992422,1cyclictest0-21swapper/322:25:493
1093299240,23cyclictest34-21ksoftirqd/322:59:023
1093299240,23cyclictest0-21swapper/323:50:433
1093299240,1cyclictest4175-21diskmemload21:13:043
1093299240,1cyclictest28682-21grep21:30:423
1093299240,0cyclictest4175-21diskmemload00:13:003
10929992422,1cyclictest21089-21ssh22:50:432
10929992421,2cyclictest4568-21ssh21:37:552
1092999240,23cyclictest0-21swapper/223:40:572
1092999240,23cyclictest0-21swapper/222:56:032
1092999240,0cyclictest0-21swapper/223:53:432
10925992422,1cyclictest0-21swapper/123:07:091
10925992421,3cyclictest0-21swapper/121:54:231
10925992420,3cyclictest4175-21diskmemload23:39:301
10925992419,5cyclictest4175-21diskmemload23:23:451
1092599240,24cyclictest0-21swapper/100:12:571
1092599240,23cyclictest4175-21diskmemload23:49:321
1092599240,23cyclictest0-21swapper/100:05:201
1092599240,1cyclictest26770-21diskmemload21:57:291
1092599240,19cyclictest0-21swapper/123:02:341
1092599240,0cyclictest0-21swapper/123:33:351
1092599240,0cyclictest0-21swapper/122:06:581
1092599240,0cyclictest0-21swapper/121:41:151
1092599240,0cyclictest0-21swapper/100:39:551
1092299243,21cyclictest62550irq/127-eno123:52:120
10922992422,1cyclictest29356-21ssh22:00:380
10922992422,1cyclictest20241-21ssh22:50:300
10922992422,1cyclictest0-21swapper/023:08:390
1092299240,23cyclictest22328-21ssh00:17:270
1092299240,0cyclictest0-21swapper/023:16:000
1092299240,0cyclictest0-21swapper/022:29:050
1092299240,0cyclictest0-21swapper/022:17:260
1092299240,0cyclictest0-21swapper/000:05:020
10932992323,0cyclictest0-21swapper/323:43:023
10932992323,0cyclictest0-21swapper/322:08:183
10932992323,0cyclictest0-21swapper/321:45:363
10932992323,0cyclictest0-21swapper/319:55:373
10932992323,0cyclictest0-21swapper/300:30:283
10932992322,1cyclictest34-21ksoftirqd/322:24:013
10932992322,1cyclictest0-21swapper/321:16:423
1093299232,1cyclictest34-21ksoftirqd/322:45:373
10932992321,1cyclictest29550-21sh23:26:073
1093299230,23cyclictest31803-21kworker/u8:123:02:263
1093299230,22cyclictest4175-21diskmemload22:03:013
1093299230,22cyclictest4175-21diskmemload00:19:053
1093299230,22cyclictest34-21ksoftirqd/300:02:113
1093299230,22cyclictest19363-21ssh21:22:133
1093299230,1cyclictest4175-21diskmemload23:31:063
1093299230,0cyclictest0-21swapper/323:58:003
1093299230,0cyclictest0-21swapper/323:23:513
1093299230,0cyclictest0-21swapper/323:16:363
10929992323,0cyclictest0-21swapper/222:20:372
10929992321,2cyclictest0-21swapper/221:31:142
10929992321,1cyclictest0-21swapper/223:27:042
10929992321,1cyclictest0-21swapper/222:45:352
10929992321,1cyclictest0-21swapper/221:55:162
10929992321,1cyclictest0-21swapper/200:15:392
10929992321,1cyclictest0-21swapper/200:07:042
10929992320,2cyclictest31822-21awk21:00:012
10929992318,4cyclictest0-21swapper/223:46:102
1092999231,21cyclictest12768-1kworker/u9:122:42:042
1092999231,21cyclictest0-21swapper/223:05:212
1092999230,23cyclictest0-21swapper/221:45:132
1092999230,23cyclictest0-21swapper/200:36:052
1092999230,23cyclictest0-21swapper/200:31:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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