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2026-07-26 - 13:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Sun Jul 26, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192999766,62cyclictest0-21swapper/109:55:331
193199744,63cyclictest0-21swapper/310:30:183
193199744,63cyclictest0-21swapper/310:30:183
193099745,62cyclictest0-21swapper/209:35:282
193099724,61cyclictest0-21swapper/210:15:172
1925997243,13cyclictest0-21swapper/009:45:160
193099715,59cyclictest0-21swapper/210:04:172
193099715,58cyclictest0-21swapper/211:00:052
193099715,57cyclictest0-21swapper/209:50:212
193099715,57cyclictest0-21swapper/209:50:212
193099714,59cyclictest0-21swapper/208:00:162
192999714,27cyclictest0-21swapper/111:25:221
193099705,57cyclictest0-21swapper/208:45:272
193099704,59cyclictest0-21swapper/209:45:222
193099704,58cyclictest0-21swapper/210:54:492
192999705,26cyclictest0-21swapper/108:50:261
1931996938,13cyclictest0-21swapper/307:20:123
1931996936,13cyclictest0-21swapper/311:21:363
1931996936,12cyclictest0-21swapper/310:56:503
193099695,57cyclictest0-21swapper/210:22:372
193099695,56cyclictest0-21swapper/209:30:172
193099694,58cyclictest0-21swapper/208:39:352
193099692,60cyclictest30283-21ssh09:06:072
192599693,46cyclictest4013-21latency_hist11:44:480
193199683,57cyclictest569-21ssh08:22:453
193199683,47cyclictest18901-21cat06:50:003
193099685,55cyclictest0-21swapper/210:35:142
193099684,57cyclictest0-21swapper/211:40:122
193099684,57cyclictest0-21swapper/210:45:552
193099684,57cyclictest0-21swapper/210:33:272
193099684,57cyclictest0-21swapper/210:33:272
193099684,57cyclictest0-21swapper/209:41:322
193099684,57cyclictest0-21swapper/209:10:272
193099684,57cyclictest0-21swapper/208:32:332
193099684,56cyclictest22374-21ssh08:55:122
193099684,56cyclictest0-21swapper/210:55:112
192999684,57cyclictest0-21swapper/108:42:191
1931996742,12cyclictest0-21swapper/311:36:483
1931996734,14cyclictest0-21swapper/310:28:113
193199673,47cyclictest1903-21latency_hist06:15:013
193199673,46cyclictest13507-21cat11:09:503
193099675,56cyclictest0-21swapper/209:26:062
193099674,56cyclictest0-21swapper/211:09:232
193099674,56cyclictest0-21swapper/210:14:302
193099674,56cyclictest0-21swapper/208:50:062
193099674,56cyclictest0-21swapper/207:20:182
1929996715,46cyclictest1553-21nscd11:05:021
192599674,55cyclictest0-21swapper/010:55:260
192599674,54cyclictest0-21swapper/010:20:100
1931996638,13cyclictest0-21swapper/309:30:313
193099664,57cyclictest0-21swapper/210:06:012
193099664,56cyclictest0-21swapper/211:10:142
193099664,56cyclictest0-21swapper/211:10:142
193099664,55cyclictest1227-21runrttasks09:22:322
193099664,55cyclictest0-21swapper/207:25:202
1929996621,12cyclictest0-21swapper/108:32:471
1925996638,13cyclictest0-21swapper/010:00:170
1925996637,13cyclictest0-21swapper/007:20:190
193199654,54cyclictest0-21swapper/310:07:333
1931996536,13cyclictest0-21swapper/309:21:533
1931996535,13cyclictest0-21swapper/309:54:103
1931996535,13cyclictest0-21swapper/309:54:103
193199653,55cyclictest13567-21munin-node11:10:113
193199653,55cyclictest13567-21munin-node11:10:113
193099655,54cyclictest0-21swapper/210:43:442
193099655,53cyclictest0-21swapper/211:29:252
193099654,54cyclictest13538-21awk08:40:282
193099654,54cyclictest0-21swapper/211:35:482
193099654,53cyclictest20729-21ssh11:20:072
192999653,54cyclictest5561-21uptime10:55:251
192599654,54cyclictest0-21swapper/008:35:110
192599654,52cyclictest0-21swapper/011:10:160
192599654,52cyclictest0-21swapper/011:10:160
1925996538,12cyclictest0-21swapper/010:35:020
1925996537,13cyclictest0-21swapper/009:24:530
1925996537,13cyclictest0-21swapper/008:25:160
1925996537,13cyclictest0-21swapper/008:25:160
1925996537,12cyclictest0-21swapper/008:30:150
193199644,53cyclictest0-21swapper/310:49:173
1931996437,13cyclictest0-21swapper/310:15:543
1931996437,12cyclictest0-21swapper/310:54:493
1931996436,14cyclictest0-21swapper/308:00:113
193199643,54cyclictest5586-21kworker/3:008:15:323
193099645,53cyclictest0-21swapper/208:23:352
193099645,52cyclictest0-21swapper/210:28:162
193099644,54cyclictest0-21swapper/211:30:252
192999645,53cyclictest0-21swapper/108:57:551
192999644,52cyclictest0-21swapper/107:37:461
192599645,51cyclictest0-21swapper/009:25:150
1925996440,10cyclictest26793-21cut09:50:150
1925996440,10cyclictest26793-21cut09:50:150
1925996431,13cyclictest0-21swapper/009:02:400
193199634,51cyclictest0-21swapper/309:57:263
1931996337,12cyclictest0-21swapper/308:58:473
1931996334,14cyclictest0-21swapper/309:15:273
193099634,53cyclictest0-21swapper/211:15:002
192999634,53cyclictest0-21swapper/110:07:451
192999634,52cyclictest0-21swapper/111:18:231
192999634,52cyclictest0-21swapper/110:53:371
192999634,52cyclictest0-21swapper/108:49:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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