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2026-07-05 - 23:04

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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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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 rack3slot6s.osadl.org (updated Sun Jul 05, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11451211894,19sleep00-21swapper/007:06:340
11008210897,6sleep30-21swapper/307:05:573
11591210796,6sleep10-21swapper/107:08:231
11448210180,15sleep20-21swapper/207:06:322
48372770,0sleep10-21swapper/111:05:141
193652670,0sleep30-21swapper/311:20:313
193862470,0sleep00-21swapper/009:35:150
1174599231,2cyclictest0-21swapper/107:25:111
1174599230,20cyclictest0-21swapper/110:35:121
1174599221,19cyclictest0-21swapper/110:00:121
231772200,1sleep30-21swapper/310:50:123
1174799171,14cyclictest0-21swapper/312:20:153
1174799161,13cyclictest392-21perl10:25:143
1174699161,13cyclictest26568-21grep07:45:142
1174699160,14cyclictest0-21swapper/210:56:272
1174599161,13cyclictest23667-21grep08:56:021
1174599161,13cyclictest0-21swapper/112:00:111
1174599160,2cyclictest0-21swapper/110:40:581
11747991511,2cyclictest27915-21apt-get07:50:053
1174799151,12cyclictest12279-21ssh11:13:143
11747991510,3cyclictest0-21swapper/311:55:173
1174799150,2cyclictest0-21swapper/311:32:173
1174799150,13cyclictest7602-21sh09:21:583
11746991512,2cyclictest28061-21diskmemload11:46:472
11746991512,2cyclictest0-21swapper/212:13:572
1174699151,12cyclictest0-21swapper/209:35:172
1174699150,3cyclictest18753-21grep10:45:132
1174699150,13cyclictest1057-21mailstats08:01:012
1174599151,3cyclictest0-21swapper/110:30:061
11745991510,3cyclictest0-21swapper/109:50:061
1174599150,13cyclictest0-21swapper/110:55:501
1174499150,13cyclictest28061-21diskmemload12:10:130
317122140,2sleep20-21swapper/209:49:212
11747991411,2cyclictest0-21swapper/309:38:573
11747991411,2cyclictest0-21swapper/309:19:573
1174799140,2cyclictest0-21swapper/310:49:173
1174799140,2cyclictest0-21swapper/310:13:573
1174799140,2cyclictest0-21swapper/310:00:073
1174799140,2cyclictest0-21swapper/309:10:133
1174799140,13cyclictest0-21swapper/311:38:473
1174799140,12cyclictest13107-21apt-get11:50:123
1174799140,12cyclictest11410-21ssh10:36:343
1174799140,12cyclictest0-21swapper/311:26:183
1174799140,12cyclictest0-21swapper/311:26:183
1174799140,12cyclictest0-21swapper/310:23:133
1174699141,12cyclictest3728-21runrttasks11:12:002
11746991411,2cyclictest28061-21diskmemload11:32:082
11746991411,2cyclictest0-21swapper/212:19:172
11746991411,2cyclictest0-21swapper/211:35:052
11746991411,2cyclictest0-21swapper/211:25:542
11746991411,2cyclictest0-21swapper/211:25:542
11746991411,2cyclictest0-21swapper/209:54:172
1174699140,2cyclictest7002-21ssh09:56:372
1174699140,2cyclictest0-21swapper/212:00:272
1174699140,2cyclictest0-21swapper/211:16:012
1174699140,2cyclictest0-21swapper/211:16:012
1174699140,2cyclictest0-21swapper/210:30:372
1174699140,13cyclictest0-21swapper/212:35:172
1174699140,13cyclictest0-21swapper/212:26:572
1174699140,12cyclictest0-21swapper/211:06:522
1174699140,12cyclictest0-21swapper/210:01:462
1174599141,7cyclictest0-21swapper/112:35:001
1174599140,12cyclictest12595-21fschecks_count08:30:141
1174499140,3cyclictest0-21swapper/012:23:140
1174499140,2cyclictest0-21swapper/011:25:170
1174499140,2cyclictest0-21swapper/011:25:170
1174499140,12cyclictest27745-21munin-node0
1174499140,12cyclictest0-21swapper/011:40:120
1174499140,12cyclictest0-21swapper/009:24:070
308142130,2sleep20-21swapper/207:55:162
235272130,2sleep00-21swapper/012:00:370
1174799139,2cyclictest31416-21aten2.4_r3power12:10:143
1174799138,3cyclictest24386-21ssh10:15:493
1174799133,6cyclictest0-21swapper/308:31:023
1174799131,11cyclictest381ktimersoftd/309:44:453
11747991310,2cyclictest24485-21ssh12:01:313
11747991310,2cyclictest0-21swapper/312:31:413
11747991310,2cyclictest0-21swapper/312:08:373
11747991310,2cyclictest0-21swapper/311:40:413
11747991310,2cyclictest0-21swapper/310:40:373
11747991310,2cyclictest0-21swapper/310:33:573
11747991310,2cyclictest0-21swapper/309:55:053
11747991310,2cyclictest0-21swapper/308:40:193
11747991310,2cyclictest0-21swapper/307:45:013
11747991310,2cyclictest0-21swapper/307:25:143
1174799130,2cyclictest3447-21apt-get12:15:123
1174799130,2cyclictest0-21swapper/312:28:553
1174799130,2cyclictest0-21swapper/311:46:053
1174799130,2cyclictest0-21swapper/311:15:173
1174799130,2cyclictest0-21swapper/311:15:173
1174799130,2cyclictest0-21swapper/311:00:203
1174799130,2cyclictest0-21swapper/310:05:233
1174799130,2cyclictest0-21swapper/309:32:273
1174799130,12cyclictest0-21swapper/311:05:433
1174799130,12cyclictest0-21swapper/309:45:283
1174799130,12cyclictest0-21swapper/309:25:573
1174699131,10cyclictest0-21swapper/208:39:192
11746991310,2cyclictest0-21swapper/212:30:492
11746991310,2cyclictest0-21swapper/212:20:112
11746991310,2cyclictest0-21swapper/212:09:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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