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2026-07-17 - 02:32

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 all highest latencies:
System rack3slot6s.osadl.org (updated Fri Jul 17, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158722114103,6sleep20-21swapper/219:08:152
15725211093,12sleep30-21swapper/319:06:233
14909211084,18sleep00-21swapper/019:05:160
15803210588,12sleep10-21swapper/119:07:211
297672900,0sleep30-21swapper/323:55:013
173822780,1sleep10-21swapper/123:41:041
221522710,6sleep31603999cyclictest21:32:583
263592700,1sleep1221ktimersoftd/100:25:011
82902690,0sleep30-21swapper/320:10:123
263552510,1sleep20-21swapper/223:50:302
1603699440,18cyclictest0-21swapper/022:35:110
28112300,0sleep20-21swapper/221:46:042
16038992217,3cyclictest7404-21sh00:05:152
1603699210,19cyclictest0-21swapper/021:05:110
1603899201,3cyclictest2933-21ssh22:20:112
1603699190,17cyclictest0-21swapper/023:50:110
16039991815,2cyclictest20789-21kworker/u8:122:29:053
293022170,1sleep30-21swapper/322:46:053
16039991613,2cyclictest1380-21kworker/u8:222:58:043
16039991612,3cyclictest19612-21kworker/u8:223:46:013
1603699161,3cyclictest0-21swapper/019:40:140
317252151,3sleep30-21swapper/321:42:423
16039991512,2cyclictest7647-21kworker/u8:121:58:043
16039991512,2cyclictest22292-21kworker/u8:023:15:053
16039991512,2cyclictest0-21swapper/323:14:593
1603999150,14cyclictest0-21swapper/323:20:093
1603999150,13cyclictest0-21swapper/322:05:173
1603899152,8cyclictest30286-21ssh22:15:002
1603899151,12cyclictest19347-21apt-get21:30:122
16038991511,2cyclictest15911-21ssh22:00:122
1603799151,3cyclictest12196-21cut21:55:301
16037991512,2cyclictest6709-21kworker/u8:100:14:051
16037991512,2cyclictest20789-21kworker/u8:122:30:021
1603799150,14cyclictest0-21swapper/123:30:561
16036991512,2cyclictest891-21kworker/u8:222:18:050
1603699151,12cyclictest3728-21runrttasks21:44:310
16036991510,3cyclictest10687-21munin-node0
16036991510,3cyclictest0-21swapper/021:00:130
1603699150,3cyclictest0-21swapper/022:05:450
1603699150,13cyclictest32064-21diskmemload21:16:540
1603699150,13cyclictest0-21swapper/000:35:160
1603999141,3cyclictest4322-21ssh21:14:553
16039991411,2cyclictest32299-21kworker/u8:200:04:043
16039991411,2cyclictest2294-21kworker/u8:023:32:053
16039991411,2cyclictest17892-21kworker/u8:219:14:043
16039991411,2cyclictest17055-21kworker/u8:000:18:053
16039991411,2cyclictest14601-21kworker/u8:121:38:053
16039991411,2cyclictest14595-21kworker/u8:223:08:053
16039991411,2cyclictest13210-21kworker/u8:220:50:063
16039991411,2cyclictest1059-21kworker/u8:222:11:043
1603999140,2cyclictest0-21swapper/300:35:393
1603999140,12cyclictest25580-21ssh00:23:543
1603999140,12cyclictest0-21swapper/322:30:173
1603999140,12cyclictest0-21swapper/320:06:023
1603899149,3cyclictest0-21swapper/222:15:192
1603899143,7cyclictest32064-21diskmemload22:56:022
1603899141,2cyclictest0-21swapper/220:11:022
16038991411,2cyclictest0-21swapper/223:20:082
16038991410,2cyclictest0-21swapper/220:20:152
1603899140,6cyclictest0-21swapper/222:41:192
1603899140,2cyclictest0-21swapper/221:15:172
1603899140,12cyclictest19585-21timerwakeupswit19:16:042
1603899140,12cyclictest0-21swapper/221:55:122
16037991411,2cyclictest0-21swapper/123:37:371
16037991411,2cyclictest0-21swapper/122:45:211
16037991411,2cyclictest0-21swapper/122:21:031
16037991411,2cyclictest0-21swapper/119:15:191
16037991410,2cyclictest20151-21latency_hist20:40:011
16037991410,2cyclictest0-21swapper/119:40:121
1603799140,3cyclictest6054-21cut22:55:311
1603799140,2cyclictest32064-21diskmemload00:00:121
1603799140,12cyclictest24809-21grep21:35:181
1603799140,12cyclictest0-21swapper/123:26:261
1603799140,12cyclictest0-21swapper/123:15:161
1603799140,12cyclictest0-21swapper/121:54:461
1603799140,12cyclictest0-21swapper/121:31:591
1603799140,12cyclictest0-21swapper/121:27:281
1603699149,3cyclictest26819-21fschecks_time20:55:140
16036991411,2cyclictest0-21swapper/021:50:150
16036991410,2cyclictest29437-21iostat23:20:150
1603699140,13cyclictest0-21swapper/023:28:390
1603699140,12cyclictest0-21swapper/023:10:520
1603999139,3cyclictest21599-21kworker/u8:123:41:053
16039991310,2cyclictest27808-21kworker/u8:022:24:043
16039991310,2cyclictest24430-21kworker/u8:121:17:053
16039991310,2cyclictest24339-21kworker/u8:119:37:043
16039991310,2cyclictest17892-21kworker/u8:219:32:053
16039991310,2cyclictest0-21swapper/323:59:243
16039991310,2cyclictest0-21swapper/322:16:013
16039991310,2cyclictest0-21swapper/321:50:133
16039991310,2cyclictest0-21swapper/321:23:333
16039991310,2cyclictest0-21swapper/321:23:323
16039991310,2cyclictest0-21swapper/300:10:133
1603999130,2cyclictest19983-21apt-get20:40:053
1603999130,2cyclictest0-21swapper/321:46:043
1603999130,2cyclictest0-21swapper/319:20:123
1603999130,12cyclictest0-21swapper/322:41:133
1603999130,12cyclictest0-21swapper/319:15:203
1603999130,12cyclictest0-21swapper/300:33:453
1603999130,12cyclictest0-21swapper/300:25:113
1603999130,11cyclictest0-21swapper/323:26:263
1603899132,6cyclictest7036-21copy00:05:002
1603899132,6cyclictest0-21swapper/223:35:002
1603899132,6cyclictest0-21swapper/220:10:002
1603899132,6cyclictest0-21swapper/200:25:012
1603899132,6cyclictest0-21swapper/200:00:012
1603899131,9cyclictest17947-21tr22:35:122
1603899131,3cyclictest16665-21munin-run00:15:002
16038991310,2cyclictest10352-21ssh21:20:172
16038991310,2cyclictest10352-21ssh21:20:162
16038991310,2cyclictest0-21swapper/222:46:472
16038991310,2cyclictest0-21swapper/221:05:142
1603899130,2cyclictest23421-21ssh22:07:032
1603899130,11cyclictest32064-21diskmemload23:10:142
1603899130,11cyclictest0-21swapper/223:45:172
1603799132,9cyclictest15390-21kworker/1:119:20:121
16037991310,2cyclictest0-21swapper/122:51:081
16037991310,2cyclictest0-21swapper/122:08:071
16037991310,2cyclictest0-21swapper/100:25:481
1603799130,2cyclictest15827-21ssh22:00:051
1603799130,2cyclictest0-21swapper/123:20:291
1603799130,2cyclictest0-21swapper/123:01:511
1603799130,2cyclictest0-21swapper/122:40:461
1603799130,2cyclictest0-21swapper/122:15:271
1603799130,2cyclictest0-21swapper/122:10:111
1603799130,2cyclictest0-21swapper/121:17:571
1603799130,2cyclictest0-21swapper/121:12:191
1603799130,2cyclictest0-21swapper/121:00:491
1603799130,2cyclictest0-21swapper/100:17:571
1603799130,12cyclictest0-21swapper/123:55:171
1603799130,12cyclictest0-21swapper/123:51:371
1603799130,12cyclictest0-21swapper/123:48:371
1603799130,12cyclictest0-21swapper/123:10:181
1603799130,12cyclictest0-21swapper/123:07:451
1603799130,12cyclictest0-21swapper/121:45:071
1603799130,12cyclictest0-21swapper/120:55:151
1603799130,12cyclictest0-21swapper/100:37:061
1603799130,12cyclictest0-21swapper/100:31:461
1603799130,12cyclictest0-21swapper/100:05:171
1603799130,11cyclictest0-21swapper/121:40:491
1603799130,11cyclictest0-21swapper/121:20:231
1603799130,11cyclictest0-21swapper/121:20:221
1603699134,7cyclictest274-21jbd2/sda1-822:05:000
16036991310,2cyclictest32064-21diskmemload22:45:050
16036991310,2cyclictest25644-21ssh22:42:420
16036991310,2cyclictest0-21swapper/021:30:160
16036991310,2cyclictest0-21swapper/000:20:180
16036991310,2cyclictest0-21swapper/000:16:040
1603699130,2cyclictest0-21swapper/022:23:550
1603699130,2cyclictest0-21swapper/020:40:490
1603699130,2cyclictest0-21swapper/000:12:000
1603699130,12cyclictest0-21swapper/023:41:120
1603699130,12cyclictest0-21swapper/023:09:250
1603699130,12cyclictest0-21swapper/020:10:190
1603699130,11cyclictest0-21swapper/021:35:210
1603699130,11cyclictest0-21swapper/021:27:270
1603699130,11cyclictest0-21swapper/021:10:090
1603999129,2cyclictest27631-21kworker/u8:022:50:063
1603999129,2cyclictest24339-21kworker/u8:119:41:053
1603999129,2cyclictest21336-21kworker/u8:019:25:053
1603999129,2cyclictest13211-21kworker/u8:320:34:053
1603999129,2cyclictest0-21swapper/321:25:413
1603999129,2cyclictest0-21swapper/320:55:173
1603999129,2cyclictest0-21swapper/300:05:183
1603999121,9cyclictest30372-21kworker/u8:221:06:023
1603999120,2cyclictest0-21swapper/323:36:093
1603999120,2cyclictest0-21swapper/322:02:393
1603999120,2cyclictest0-21swapper/320:00:113
1603999120,11cyclictest0-21swapper/322:39:253
1603999120,10cyclictest0-21swapper/323:03:463
1603899129,2cyclictest9584-21ssh23:33:472
1603899129,2cyclictest0-21swapper/221:40:162
1603899129,2cyclictest0-21swapper/220:55:182
1603899129,2cyclictest0-21swapper/220:41:042
1603899122,7cyclictest0-21swapper/219:46:582
1603899122,7cyclictest0-21swapper/219:37:582
1603899121,6cyclictest0-21swapper/222:30:002
1603899120,3cyclictest2754-21ssh23:26:022
1603899120,1cyclictest0-21swapper/223:05:152
1603899120,11cyclictest0-21swapper/222:50:142
1603899120,11cyclictest0-21swapper/220:01:012
1603899120,11cyclictest0-21swapper/200:27:182
1603799129,2cyclictest0-21swapper/122:27:081
1603799129,2cyclictest0-21swapper/120:30:161
1603799129,2cyclictest0-21swapper/119:35:111
1603799120,2cyclictest0-21swapper/120:23:491
1603799120,2cyclictest0-21swapper/120:10:121
1603799120,11cyclictest0-21swapper/122:35:551
1603799120,11cyclictest0-21swapper/120:51:021
1603799120,11cyclictest0-21swapper/120:01:081
1603699129,2cyclictest0-21swapper/023:56:220
1603699129,2cyclictest0-21swapper/023:16:240
1603699129,2cyclictest0-21swapper/022:10:400
1603699129,2cyclictest0-21swapper/021:20:100
1603699129,2cyclictest0-21swapper/021:20:100
1603699129,2cyclictest0-21swapper/000:33:240
1603699122,5cyclictest0-21swapper/022:30:000
1603699120,2cyclictest32064-21diskmemload22:50:010
1603699120,2cyclictest0-21swapper/023:01:000
1603699120,2cyclictest0-21swapper/021:46:240
1603699120,2cyclictest0-21swapper/019:35:510
1603699120,2cyclictest0-21swapper/000:00:010
1603699120,11cyclictest0-21swapper/023:45:010
1603699120,11cyclictest0-21swapper/023:31:320
1603699120,11cyclictest0-21swapper/022:27:140
1603699120,11cyclictest0-21swapper/021:55:210
1603699120,11cyclictest0-21swapper/020:50:490
1603699120,11cyclictest0-21swapper/020:46:020
1603699120,11cyclictest0-21swapper/020:25:130
1603699120,11cyclictest0-21swapper/019:50:150
1603699120,11cyclictest0-21swapper/000:05:310
1603699120,10cyclictest0-21swapper/022:55:350
1603699120,10cyclictest0-21swapper/000:25:110
56922110,2sleep00-21swapper/020:02:280
237052110,2sleep00-21swapper/019:26:020
1603999118,2cyclictest24339-21kworker/u8:119:54:053
1603999118,2cyclictest17892-21kworker/u8:219:49:043
1603999118,2cyclictest0-21swapper/320:45:153
1603999118,2cyclictest0-21swapper/319:55:163
1603899118,2cyclictest0-21swapper/223:40:392
1603899118,2cyclictest0-21swapper/221:25:042
1603899118,2cyclictest0-21swapper/200:31:512
1603899116,3cyclictest23936-21apt-get23:15:122
1603899111,7cyclictest0-21swapper/219:40:392
1603899111,6cyclictest0-21swapper/221:00:102
1603899111,6cyclictest0-21swapper/219:31:002
1603899110,2cyclictest0-21swapper/222:31:052
1603899110,2cyclictest0-21swapper/221:10:032
1603899110,10cyclictest0-21swapper/221:52:542
1603799118,2cyclictest0-21swapper/120:25:111
1603799116,3cyclictest6685-21grep20:05:161
1603799110,9cyclictest32356-21munin-node1
1603799110,3cyclictest30352-21munin-node1
1603799110,3cyclictest10130-21munin-node1
1603799110,2cyclictest0-21swapper/119:33:471
1603699118,2cyclictest0-21swapper/020:20:170
1603699111,8cyclictest18046-21munin-run19:15:000
1603999107,2cyclictest13211-21kworker/u8:320:27:053
1603999101,7cyclictest10379-21tr20:15:153
1603899107,2cyclictest0-21swapper/223:00:172
1603899107,2cyclictest0-21swapper/220:50:142
1603899107,2cyclictest0-21swapper/220:35:292
1603899107,2cyclictest0-21swapper/219:52:302
1603899107,2cyclictest0-21swapper/200:37:142
1603899105,3cyclictest24623-21ssh21:35:172
1603899102,5cyclictest0-21swapper/219:20:352
1603899100,8cyclictest0-21swapper/200:15:052
1603799107,2cyclictest0-21swapper/119:25:111
1603799100,9cyclictest0-21swapper/119:56:021
1603799100,8cyclictest0-21swapper/121:05:131
1603799100,8cyclictest0-21swapper/120:40:051
1603799100,2cyclictest0-21swapper/119:10:121
1603699107,2cyclictest19322-21mailstats20:36:020
1603699107,2cyclictest0-21swapper/019:23:410
1603699105,3cyclictest6969-21tr20:05:180
1603699100,9cyclictest24339-21kworker/u8:119:45:050
1603699100,9cyclictest0-21swapper/020:30:210
160399996,2cyclictest24430-21kworker/u8:121:03:043
160399991,3cyclictest0-21swapper/320:20:173
160389994,3cyclictest3708-21sshd19:59:292
160389994,3cyclictest23511-21ls20:46:032
160389994,3cyclictest10295-21cpu20:15:152
160389991,6cyclictest0-21swapper/220:25:012
160389991,6cyclictest0-21swapper/219:25:362
160379994,3cyclictest22475-21wc20:45:131
160369996,2cyclictest0-21swapper/019:30:300
160369994,3cyclictest1909-21aten2.4_r3power19:55:110
160369994,3cyclictest10275-21basename20:15:130
160399983,3cyclictest18220-21head20:35:113
160389983,3cyclictest16711-21fschecks_time20:30:162
160389983,3cyclictest16425-21cpu19:10:132
160369983,3cyclictest18518-21grep19:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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