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2026-09-10 - 02:11

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 376 highest latencies:
System rack3slot6s.osadl.org (updated Thu Sep 10, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18671210988,16sleep20-21swapper/219:08:222
18553210986,18sleep00-21swapper/019:06:530
18556210897,6sleep30-21swapper/319:06:563
18570210695,6sleep10-21swapper/119:07:051
195742790,0sleep00-21swapper/021:26:040
165222730,0sleep30-21swapper/323:01:023
91472720,1sleep3381ktimersoftd/321:49:043
159472680,3sleep01882399cyclictest21:55:170
18825993615,19cyclictest0-21swapper/220:55:132
18823993617,17cyclictest0-21swapper/000:35:110
18825992926,2cyclictest2490-21kworker/u8:221:23:052
18825992926,2cyclictest20268-21kworker/u8:122:39:052
18825992825,2cyclictest4459-21kworker/u8:000:19:042
18825992825,2cyclictest19261-21kworker/u8:321:43:042
1882599282,18cyclictest0-21swapper/223:33:052
18826992723,2cyclictest30024-21kworker/u8:022:29:053
1882599271,17cyclictest0-21swapper/223:12:062
1882599270,18cyclictest0-21swapper/221:38:022
18826992622,2cyclictest9552-21kworker/u8:122:21:053
1882599261,18cyclictest0-21swapper/222:12:052
1882599260,18cyclictest0-21swapper/222:00:062
18826992522,2cyclictest30024-21kworker/u8:022:49:053
18825992522,2cyclictest19107-21kworker/u8:119:45:052
18825992522,2cyclictest19107-21kworker/u8:119:45:052
18825992421,2cyclictest23100-21kworker/u8:100:31:052
18825992421,2cyclictest19107-21kworker/u8:119:44:042
18826992320,2cyclictest13953-21kworker/u8:123:42:063
18826992319,3cyclictest17338-21kworker/u8:200:08:053
1882599233,18cyclictest0-21swapper/219:34:042
18825992320,2cyclictest28023-21kworker/u8:219:36:052
18825992320,2cyclictest22827-21kworker/u8:120:48:052
18825992320,2cyclictest19107-21kworker/u8:119:21:052
41242220,1sleep30-21swapper/321:44:053
18826992219,2cyclictest9552-21kworker/u8:122:03:053
18826992219,2cyclictest4459-21kworker/u8:000:11:053
18826992219,2cyclictest30168-21kworker/u8:121:38:063
18826992219,2cyclictest22910-21kworker/u8:222:08:053
18825992219,2cyclictest20059-21kworker/u8:021:09:052
18825992219,2cyclictest19107-21kworker/u8:119:18:062
18826992118,2cyclictest31121-21kworker/u8:223:52:053
18826992118,2cyclictest30024-21kworker/u8:022:34:053
18826992118,2cyclictest23100-21kworker/u8:100:32:023
1882699210,19cyclictest0-21swapper/321:30:103
1882699210,16cyclictest0-21swapper/300:18:053
1882599212,2cyclictest0-21swapper/222:59:052
1882599212,2cyclictest0-21swapper/222:45:052
1882599212,2cyclictest0-21swapper/222:42:042
1882599210,4cyclictest0-21swapper/223:35:052
1882599210,4cyclictest0-21swapper/221:32:022
1882599210,19cyclictest0-21swapper/222:50:142
1882599210,18cyclictest0-21swapper/223:51:042
1882499211,18cyclictest2162-21diskmemload22:25:101
18826992017,2cyclictest32621-21kworker/u8:123:21:053
18826992017,2cyclictest32621-21kworker/u8:123:21:053
18826992017,2cyclictest31121-21kworker/u8:200:02:053
18826992017,2cyclictest30024-21kworker/u8:022:50:043
18826992017,2cyclictest20888-21kworker/u8:023:48:023
18826992017,2cyclictest19160-21kworker/u8:123:09:043
18826992016,2cyclictest7485-21kworker/u8:223:26:043
1882599201,2cyclictest0-21swapper/222:23:052
1882599200,6cyclictest0-21swapper/200:00:052
1882599200,18cyclictest0-21swapper/221:00:122
1882599200,18cyclictest0-21swapper/220:06:052
1882599200,18cyclictest0-21swapper/200:35:112
1882499200,18cyclictest0-21swapper/123:39:051
1882499200,18cyclictest0-21swapper/123:30:101
18826991916,2cyclictest7787-21kworker/u8:021:19:043
18826991916,2cyclictest19261-21kworker/u8:321:52:043
18826991916,2cyclictest18883-21kworker/u8:121:27:043
18826991916,2cyclictest11774-21kworker/u8:000:37:053
1882699190,2cyclictest0-21swapper/323:38:013
18825991916,2cyclictest1815-21kworker/u8:019:12:062
1882599190,2cyclictest0-21swapper/223:23:052
1882599190,2cyclictest0-21swapper/223:23:052
1882599190,2cyclictest0-21swapper/223:15:052
1882599190,2cyclictest0-21swapper/223:02:062
1882599190,2cyclictest0-21swapper/222:32:012
1882599190,2cyclictest0-21swapper/221:53:052
1882599190,2cyclictest0-21swapper/221:28:022
1882599190,2cyclictest0-21swapper/220:50:042
1882599190,2cyclictest0-21swapper/220:43:052
1882599190,2cyclictest0-21swapper/220:30:052
1882599190,2cyclictest0-21swapper/220:27:042
1882599190,2cyclictest0-21swapper/220:03:042
1882599190,2cyclictest0-21swapper/219:55:052
18826991815,2cyclictest4459-21kworker/u8:000:27:043
18826991815,2cyclictest28023-21kworker/u8:219:46:053
18826991815,2cyclictest28023-21kworker/u8:219:46:053
18826991815,2cyclictest20059-21kworker/u8:020:39:053
18826991815,2cyclictest15209-21kworker/u8:021:58:053
1882699180,13cyclictest0-21swapper/323:12:023
1882599180,2cyclictest0-21swapper/221:14:052
1882599180,2cyclictest0-21swapper/219:28:052
18826991714,2cyclictest30024-21kworker/u8:022:43:043
18826991714,2cyclictest28023-21kworker/u8:220:13:053
18826991714,2cyclictest20059-21kworker/u8:020:41:053
18826991713,3cyclictest16127-21sendmail-mta21:23:393
1882699171,14cyclictest12168-21ssh22:56:333
1882699170,2cyclictest0-21swapper/300:21:053
1882599170,14cyclictest0-21swapper/220:36:052
18826991613,2cyclictest30024-21kworker/u8:022:13:053
18826991613,2cyclictest28023-21kworker/u8:220:28:043
18826991613,2cyclictest2490-21kworker/u8:221:13:053
1882699161,13cyclictest0-21swapper/320:20:163
1882699160,2cyclictest0-21swapper/323:58:053
1882699160,2cyclictest0-21swapper/319:37:053
1882599160,2cyclictest0-21swapper/223:28:042
1882399160,14cyclictest0-21swapper/019:26:030
63282150,1sleep10-21swapper/121:13:341
58242150,0sleep00-21swapper/022:18:070
18826991512,2cyclictest28023-21kworker/u8:219:53:053
1882699151,12cyclictest24863-21apt-get19:25:053
1882599151,3cyclictest20357-21perl23:05:142
18825991511,2cyclictest0-21swapper/221:15:042
18825991510,3cyclictest15075-21ssh21:55:122
18824991511,2cyclictest0-21swapper/122:36:291
1882499150,3cyclictest31669-21switchtime22:11:061
1882499150,13cyclictest0-21swapper/100:15:091
1882399150,13cyclictest26548-21kworker/u8:222:41:050
1882399150,13cyclictest0-21swapper/022:00:150
324772141,3sleep332465-21sendmail-mta21:03:263
18826991411,2cyclictest20059-21kworker/u8:021:08:053
18826991411,2cyclictest0-21swapper/322:36:433
18826991410,2cyclictest0-21swapper/323:18:073
1882699140,9cyclictest0-21swapper/319:20:053
1882699140,5cyclictest0-21swapper/323:31:053
1882599149,3cyclictest27510-21ssh22:06:532
1882599142,7cyclictest0-21swapper/220:20:012
18825991411,2cyclictest0-21swapper/221:45:402
1882599140,3cyclictest0-21swapper/200:24:212
1882599140,12cyclictest0-21swapper/200:10:552
1882499141,2cyclictest0-21swapper/122:57:071
18824991411,2cyclictest0-21swapper/122:46:391
18824991411,2cyclictest0-21swapper/121:43:381
1882499140,2cyclictest2162-21diskmemload00:35:191
1882499140,2cyclictest0-21swapper/122:54:191
1882499140,2cyclictest0-21swapper/121:29:091
1882499140,2cyclictest0-21swapper/120:10:171
1882499140,13cyclictest0-21swapper/121:39:391
1882499140,12cyclictest0-21swapper/121:46:001
1882499140,12cyclictest0-21swapper/100:30:211
1882499140,12cyclictest0-21swapper/100:00:111
18823991411,2cyclictest0-21swapper/023:45:440
18823991411,2cyclictest0-21swapper/000:34:430
1882399140,3cyclictest0-21swapper/021:22:290
1882399140,3cyclictest0-21swapper/000:12:460
1882399140,2cyclictest0-21swapper/019:46:030
1882399140,2cyclictest0-21swapper/019:46:020
1882399140,12cyclictest13385-1kworker/0:1H21:34:310
1882399140,12cyclictest0-21swapper/023:55:010
1882399140,12cyclictest0-21swapper/022:55:520
1882399140,12cyclictest0-21swapper/022:25:010
1882399140,12cyclictest0-21swapper/021:35:160
1882699132,9cyclictest0-21swapper/320:46:593
1882699131,7cyclictest0-21swapper/320:10:013
18826991310,2cyclictest30024-21kworker/u8:022:16:053
18826991310,2cyclictest11992-21kworker/u8:020:16:053
18826991310,2cyclictest0-21swapper/319:55:133
1882699130,2cyclictest0-21swapper/319:18:013
1882699130,12cyclictest0-21swapper/320:00:133
1882699130,12cyclictest0-21swapper/319:10:163
18825991310,2cyclictest5313-21ssh22:17:202
18825991310,2cyclictest0-21swapper/223:55:052
18825991310,2cyclictest0-21swapper/223:46:202
18825991310,2cyclictest0-21swapper/223:42:262
18825991310,2cyclictest0-21swapper/200:05:112
1882599130,2cyclictest0-21swapper/200:27:492
18824991310,2cyclictest0-21swapper/123:41:181
18824991310,2cyclictest0-21swapper/123:13:391
18824991310,2cyclictest0-21swapper/122:40:191
18824991310,2cyclictest0-21swapper/121:34:101
18824991310,2cyclictest0-21swapper/121:16:021
18824991310,2cyclictest0-21swapper/120:50:141
18824991310,2cyclictest0-21swapper/119:35:381
18824991310,2cyclictest0-21swapper/119:15:191
18824991310,2cyclictest0-21swapper/100:23:541
18824991310,2cyclictest0-21swapper/100:10:491
1882499130,2cyclictest0-21swapper/123:05:171
1882499130,2cyclictest0-21swapper/123:03:591
1882499130,2cyclictest0-21swapper/121:24:091
1882499130,12cyclictest0-21swapper/123:50:181
1882499130,12cyclictest0-21swapper/123:25:281
1882499130,12cyclictest0-21swapper/122:15:171
1882499130,12cyclictest0-21swapper/122:04:191
1882499130,12cyclictest0-21swapper/121:56:381
1882499130,11cyclictest19107-21kworker/u8:119:30:041
1882399138,3cyclictest8963-21head20:05:110
1882399131,3cyclictest8720-21turbostat20:05:010
18823991310,2cyclictest10377-21ssh22:22:280
18823991310,2cyclictest0-21swapper/023:23:240
18823991310,2cyclictest0-21swapper/023:23:230
18823991310,2cyclictest0-21swapper/023:01:290
18823991310,2cyclictest0-21swapper/022:50:180
18823991310,2cyclictest0-21swapper/022:46:200
1882399130,2cyclictest20739-21apt-get20:35:120
1882399130,2cyclictest19568-21ssh22:31:210
1882399130,2cyclictest0-21swapper/023:34:250
1882399130,2cyclictest0-21swapper/022:07:420
1882399130,2cyclictest0-21swapper/021:51:010
1882399130,2cyclictest0-21swapper/000:05:430
1882399130,12cyclictest0-21swapper/023:55:180
1882399130,12cyclictest0-21swapper/023:06:130
1882399130,12cyclictest0-21swapper/000:23:050
1882399130,11cyclictest7011-21ssh21:14:350
1882399130,11cyclictest29891-21ssh22:10:080
1882399130,11cyclictest0-21swapper/022:35:580
1882399130,11cyclictest0-21swapper/021:47:020
117642130,3sleep112052-21unixbench_singl21:51:031
308112121,2sleep030815-21apt-get21:00:120
1882699129,2cyclictest19107-21kworker/u8:119:42:043
1882699123,7cyclictest0-21swapper/320:53:013
1882699122,7cyclictest0-21swapper/320:56:593
1882699120,11cyclictest0-21swapper/319:31:013
1882599129,2cyclictest0-21swapper/220:11:042
1882599120,11cyclictest0-21swapper/222:25:452
1882499129,2cyclictest0-21swapper/123:55:491
1882499129,2cyclictest0-21swapper/123:22:501
1882499129,2cyclictest0-21swapper/123:22:491
1882499129,2cyclictest0-21swapper/122:20:091
1882499129,2cyclictest0-21swapper/100:07:281
1882499122,7cyclictest0-21swapper/121:06:581
1882499122,7cyclictest0-21swapper/100:25:021
1882499121,9cyclictest24196-21head20:41:011
1882499120,2cyclictest0-21swapper/120:05:121
1882499120,2cyclictest0-21swapper/119:20:291
1882499120,11cyclictest0-21swapper/123:45:211
1882499120,11cyclictest0-21swapper/123:15:191
1882499120,11cyclictest0-21swapper/122:31:231
1882499120,11cyclictest0-21swapper/122:06:391
1882499120,11cyclictest0-21swapper/120:55:191
1882499120,11cyclictest0-21swapper/120:20:191
1882499120,10cyclictest0-21swapper/119:40:281
1882399120,2cyclictest0-21swapper/023:44:420
1882399120,2cyclictest0-21swapper/019:20:130
1882399120,11cyclictest3167-21ssh21:42:430
1882399120,11cyclictest2162-21diskmemload00:04:250
1882399120,11cyclictest0-21swapper/023:35:090
1882399120,11cyclictest0-21swapper/023:25:100
1882399120,11cyclictest0-21swapper/023:17:110
1882399120,11cyclictest0-21swapper/023:11:230
1882399120,11cyclictest0-21swapper/021:16:120
1882399120,11cyclictest0-21swapper/020:45:170
1882399120,11cyclictest0-21swapper/020:11:030
1882399120,11cyclictest0-21swapper/000:25:340
1882399120,11cyclictest0-21swapper/000:15:140
1882699110,1cyclictest0-21swapper/320:30:123
1882599112,6cyclictest0-21swapper/220:21:012
1882499118,2cyclictest0-21swapper/120:00:141
1882499117,3cyclictest19037-21munin-node1
1882499112,6cyclictest0-21swapper/120:37:591
1882499111,8cyclictest0-21swapper/120:25:141
1882499110,9cyclictest0-21swapper/119:25:051
1882499110,10cyclictest0-21swapper/120:45:231
1882499110,10cyclictest0-21swapper/119:54:591
1882399115,3cyclictest3158-21dbus-daemon19:30:040
1882399111,5cyclictest0-21swapper/021:00:000
1882399111,2cyclictest0-21swapper/020:15:140
1882399110,9cyclictest0-21swapper/019:45:010
1882399110,1cyclictest0-21swapper/019:35:130
1882599101,5cyclictest0-21swapper/219:50:582
1882499107,2cyclictest0-21swapper/121:00:131
1882499107,2cyclictest0-21swapper/119:55:101
1882499101,3cyclictest0-21swapper/119:45:181
1882499101,3cyclictest0-21swapper/119:45:181
1882499100,2cyclictest0-21swapper/120:30:121
1882399107,2cyclictest4922-21apt-get19:55:110
1882399107,2cyclictest0-21swapper/020:25:130
1882399105,3cyclictest21605-21grep19:15:160
1882399102,6cyclictest0-21swapper/020:51:000
1882399101,5cyclictest0-21swapper/019:10:010
188239994,3cyclictest3255-21fschecks_time19:50:130
188239992,6cyclictest0-21swapper/020:41:080
188239990,8cyclictest0-21swapper/021:05:100
188249983,3cyclictest13254-21cut20:15:131
188239985,2cyclictest0-21swapper/020:23:320
188239984,2cyclictest19291-21tr20:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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