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2026-08-16 - 21:18

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 Sun Aug 16, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30702211190,16sleep00-21swapper/007:09:210
30702211190,16sleep00-21swapper/007:09:200
30560210889,14sleep30-21swapper/307:07:323
30560210889,14sleep30-21swapper/307:07:323
30026210487,12sleep10-21swapper/107:05:491
30026210487,12sleep10-21swapper/107:05:481
30552210077,6sleep20-21swapper/207:07:272
30552210077,6sleep20-21swapper/207:07:272
210492870,0sleep10-21swapper/111:28:041
30732750,1sleep10-21swapper/110:36:061
30732750,1sleep10-21swapper/110:36:051
4992740,6sleep03078499cyclictest10:34:400
248592740,1sleep229-21rcuc/212:38:292
207442670,0sleep2301ktimersoftd/209:48:582
143832320,0sleep30-21swapper/310:15:153
292612310,1sleep20-21swapper/210:30:142
30789992724,2cyclictest3864-21kworker/u8:211:44:062
30784992623,2cyclictest14088-21kworker/u8:210:18:050
30790992522,2cyclictest2239-21kworker/u8:209:47:053
30789992522,2cyclictest20785-21kworker/u8:212:08:022
30784992522,2cyclictest2239-21kworker/u8:209:54:050
30784992522,2cyclictest20785-21kworker/u8:212:12:050
30784992521,3cyclictest14088-21kworker/u8:210:22:020
314442240,1sleep1221ktimersoftd/109:26:031
3079099243,12cyclictest0-21swapper/309:36:023
30787992421,2cyclictest2239-21kworker/u8:209:36:021
30784992421,2cyclictest29290-21kworker/u8:110:02:050
30784992421,2cyclictest29002-21kworker/u8:011:39:050
30784992421,2cyclictest22458-21kworker/u8:109:18:040
30784992421,2cyclictest13044-21kworker/u8:211:34:050
30790992320,2cyclictest882-21kworker/u8:211:08:053
30790992320,2cyclictest3864-21kworker/u8:211:44:023
30790992320,2cyclictest28769-21kworker/u8:009:26:043
30790992320,2cyclictest20785-21kworker/u8:212:05:053
30789992320,2cyclictest2239-21kworker/u8:209:52:052
30789992320,2cyclictest2239-21kworker/u8:209:41:052
30789992320,2cyclictest14088-21kworker/u8:210:25:052
30789992320,2cyclictest14088-21kworker/u8:210:19:042
30784992320,2cyclictest22458-21kworker/u8:109:29:050
30784992320,2cyclictest22458-21kworker/u8:109:23:050
30784992320,2cyclictest2239-21kworker/u8:209:35:050
30784992319,3cyclictest32331-21kworker/u8:110:58:050
30790992219,2cyclictest6349-21kworker/u8:011:24:053
30790992219,2cyclictest3864-21kworker/u8:211:49:053
30790992219,2cyclictest32331-21kworker/u8:110:54:053
30790992219,2cyclictest29002-21kworker/u8:011:38:043
30790992219,2cyclictest27790-21kworker/u8:011:03:043
30790992219,2cyclictest2239-21kworker/u8:209:40:053
30790992219,2cyclictest14088-21kworker/u8:210:28:043
30789992219,2cyclictest6349-21kworker/u8:011:15:052
30789992219,2cyclictest29491-21kworker/u8:112:27:052
30789992219,2cyclictest22458-21kworker/u8:109:30:052
30789992219,2cyclictest15856-21kworker/u8:010:52:052
181242220,0sleep30-21swapper/312:31:003
30790992118,2cyclictest3864-21kworker/u8:211:55:053
30790992118,2cyclictest32331-21kworker/u8:110:59:053
30790992118,2cyclictest29491-21kworker/u8:112:29:043
30790992118,2cyclictest28769-21kworker/u8:009:31:063
30790992118,2cyclictest22458-21kworker/u8:109:20:023
30790992118,2cyclictest20785-21kworker/u8:212:21:053
30790992117,3cyclictest14088-21kworker/u8:210:24:053
30789992118,2cyclictest9725-21kworker/u8:111:57:052
30789992118,2cyclictest6349-21kworker/u8:011:22:052
30789992118,2cyclictest27790-21kworker/u8:011:06:052
30789992118,2cyclictest22458-21kworker/u8:109:19:052
30789992118,2cyclictest19157-21kworker/u8:010:07:052
30789992118,2cyclictest13044-21kworker/u8:211:35:052
30784992118,2cyclictest23721-21kworker/u8:010:29:050
30784992118,2cyclictest22743-21kworker/u8:111:41:040
30784992118,2cyclictest20785-21kworker/u8:212:35:050
30790992017,2cyclictest6821-21kworker/u8:007:32:053
30790992017,2cyclictest3864-21kworker/u8:211:50:013
30790992017,2cyclictest29491-21kworker/u8:112:19:043
30790992017,2cyclictest23721-21kworker/u8:010:30:053
30790992017,2cyclictest2239-21kworker/u8:209:56:053
30790992017,2cyclictest19157-21kworker/u8:010:00:013
30789992017,2cyclictest9725-21kworker/u8:111:53:042
30789992017,2cyclictest32331-21kworker/u8:110:55:052
30789992017,2cyclictest32331-21kworker/u8:110:38:022
30789992017,2cyclictest32331-21kworker/u8:110:38:012
30789992017,2cyclictest27790-21kworker/u8:011:04:042
30789992017,2cyclictest22458-21kworker/u8:109:25:042
30789992017,2cyclictest10671-21kworker/u8:107:48:062
30784992017,2cyclictest29491-21kworker/u8:112:28:050
30784992017,2cyclictest29491-21kworker/u8:112:18:050
30784992017,2cyclictest28769-21kworker/u8:009:31:030
30784992017,2cyclictest27112-21kworker/u8:108:39:050
30784992017,2cyclictest27112-21kworker/u8:108:30:050
30784992017,2cyclictest20785-21kworker/u8:212:31:040
30784992017,2cyclictest19340-21kworker/u8:008:41:040
30784992017,2cyclictest19340-21kworker/u8:008:14:050
30790991916,2cyclictest6349-21kworker/u8:011:27:043
30790991916,2cyclictest6174-21kworker/u8:210:46:043
30790991916,2cyclictest4348-21kworker/u8:208:48:053
30790991916,2cyclictest32331-21kworker/u8:111:16:063
30790991916,2cyclictest32331-21kworker/u8:111:10:043
30790991916,2cyclictest20785-21kworker/u8:212:10:023
30790991916,2cyclictest10671-21kworker/u8:107:46:043
30789991916,2cyclictest6174-21kworker/u8:210:49:052
30789991916,2cyclictest14814-21kworker/u8:012:00:052
30789991916,2cyclictest13044-21kworker/u8:211:32:052
30789991916,2cyclictest10671-21kworker/u8:107:40:062
30784991916,2cyclictest9725-21kworker/u8:111:51:050
30784991916,2cyclictest3864-21kworker/u8:211:47:050
30784991916,2cyclictest32331-21kworker/u8:111:16:010
30784991916,2cyclictest27790-21kworker/u8:011:07:050
30784991916,2cyclictest20785-21kworker/u8:212:08:050
30790991815,2cyclictest7774-21kworker/u8:108:55:053
30790991815,2cyclictest6174-21kworker/u8:210:42:053
30790991815,2cyclictest20785-21kworker/u8:212:01:043
30790991815,2cyclictest19340-21kworker/u8:008:32:053
30790991815,2cyclictest16778-21kworker/u8:308:06:053
3079099180,2cyclictest25688-21ssh09:54:043
3079099180,2cyclictest0-21swapper/310:12:053
3079099180,2cyclictest0-21swapper/309:18:053
30789991815,2cyclictest20785-21kworker/u8:212:34:052
30789991815,2cyclictest19340-21kworker/u8:008:43:052
30789991815,2cyclictest16941-21kworker/u8:009:12:062
30789991815,2cyclictest16778-21kworker/u8:308:05:052
30789991815,2cyclictest14781-21kworker/u8:107:17:052
30784991815,2cyclictest20785-21kworker/u8:212:24:050
3078499180,2cyclictest0-21swapper/010:12:050
30790991714,2cyclictest5315-21kworker/u8:207:15:053
30790991714,2cyclictest27112-21kworker/u8:108:29:053
30790991714,2cyclictest10671-21kworker/u8:107:40:023
30789991714,2cyclictest19340-21kworker/u8:008:45:052
30789991714,2cyclictest14088-21kworker/u8:210:21:052
3078999170,2cyclictest0-21swapper/210:12:052
30787991714,2cyclictest5315-21kworker/u8:207:24:061
30787991714,2cyclictest3864-21kworker/u8:211:48:051
30787991714,2cyclictest2239-21kworker/u8:209:34:021
30787991714,2cyclictest20785-21kworker/u8:212:14:051
30787991714,2cyclictest20785-21kworker/u8:212:06:041
30787991714,2cyclictest19157-21kworker/u8:010:11:051
30787991714,2cyclictest14088-21kworker/u8:210:23:051
30784991714,2cyclictest9725-21kworker/u8:111:58:060
30784991714,2cyclictest7774-21kworker/u8:108:54:040
30784991714,2cyclictest29290-21kworker/u8:110:05:040
30784991714,2cyclictest16778-21kworker/u8:308:18:010
3078499170,2cyclictest0-21swapper/011:22:050
3078499170,13cyclictest0-21swapper/010:52:040
30790991613,2cyclictest7774-21kworker/u8:109:10:053
30790991613,2cyclictest19340-21kworker/u8:008:15:053
30790991613,2cyclictest19340-21kworker/u8:008:13:043
30790991613,2cyclictest16778-21kworker/u8:307:59:053
30790991613,2cyclictest15213-21kworker/u8:207:54:053
3079099161,13cyclictest0-21swapper/311:34:093
3079099160,3cyclictest0-21swapper/310:38:063
3079099160,3cyclictest0-21swapper/310:38:053
30789991613,2cyclictest5315-21kworker/u8:207:25:052
30789991613,2cyclictest27112-21kworker/u8:108:28:042
3078999160,2cyclictest0-21swapper/210:44:062
3078999160,2cyclictest0-21swapper/209:24:062
3078999160,2cyclictest0-21swapper/208:30:052
30787991613,2cyclictest6174-21kworker/u8:210:43:051
3078799160,14cyclictest0-21swapper/109:47:051
30784991613,2cyclictest16778-21kworker/u8:308:02:040
30784991613,2cyclictest10871-21kworker/u8:209:04:050
3078499161,13cyclictest17075-21ssh09:45:150
3078499160,2cyclictest0-21swapper/010:38:020
3078499160,2cyclictest0-21swapper/010:38:020
30790991512,2cyclictest5315-21kworker/u8:207:37:053
30790991512,2cyclictest4407-21kworker/u8:107:29:053
30790991512,2cyclictest27112-21kworker/u8:108:36:043
30790991512,2cyclictest16778-21kworker/u8:308:04:063
3079099150,2cyclictest0-21swapper/312:35:053
30789991512,2cyclictest7774-21kworker/u8:108:57:052
30789991512,2cyclictest5315-21kworker/u8:207:22:052
30789991512,2cyclictest27112-21kworker/u8:108:38:042
30789991512,2cyclictest27112-21kworker/u8:108:23:052
30789991512,2cyclictest16778-21kworker/u8:308:10:042
3078999150,2cyclictest0-21swapper/212:20:022
3078999150,2cyclictest0-21swapper/212:18:042
3078999150,2cyclictest0-21swapper/211:46:052
3078999150,2cyclictest0-21swapper/210:03:052
3078999150,2cyclictest0-21swapper/209:36:062
3078799153,11cyclictest207150irq/24-eth110:18:331
30787991512,2cyclictest6349-21kworker/u8:011:23:051
30787991512,2cyclictest4125-21vmstat08:41:051
30787991512,2cyclictest23721-21kworker/u8:010:33:041
30787991512,2cyclictest20785-21kworker/u8:212:02:051
30787991511,2cyclictest0-21swapper/108:20:001
30787991511,2cyclictest0-21swapper/107:25:211
3078799150,13cyclictest14606-21diskmemload10:00:091
30784991512,2cyclictest5315-21kworker/u8:207:36:020
30784991512,2cyclictest16778-21kworker/u8:307:56:020
3078499151,12cyclictest14935-21apt-get09:10:120
3078499150,2cyclictest0-21swapper/012:00:050
3078499150,2cyclictest0-21swapper/011:04:050
3078499150,2cyclictest0-21swapper/010:44:060
3078499150,2cyclictest0-21swapper/009:43:040
30790991411,2cyclictest5315-21kworker/u8:207:12:053
30790991411,2cyclictest4348-21kworker/u8:208:50:053
30790991411,2cyclictest27112-21kworker/u8:108:40:053
3079099140,2cyclictest0-21swapper/310:08:053
3079099140,12cyclictest12975-21egrep09:05:133
30789991411,2cyclictest5315-21kworker/u8:207:36:052
30789991411,2cyclictest16778-21kworker/u8:308:01:042
30789991411,2cyclictest16778-21kworker/u8:307:57:052
3078999140,2cyclictest0-21swapper/211:29:042
3078999140,2cyclictest0-21swapper/209:59:052
30787991411,2cyclictest29491-21kworker/u8:112:20:021
30787991411,2cyclictest29290-21kworker/u8:109:59:051
30787991411,2cyclictest22458-21kworker/u8:109:24:021
30787991411,2cyclictest0-21swapper/111:56:151
30787991411,2cyclictest0-21swapper/111:41:591
30787991411,2cyclictest0-21swapper/110:49:201
3078799140,3cyclictest29000-21ssh11:03:131
3078799140,2cyclictest0-21swapper/111:05:181
3078799140,2cyclictest0-21swapper/110:55:491
3078799140,13cyclictest0-21swapper/112:36:401
3078799140,13cyclictest0-21swapper/112:33:591
3078799140,13cyclictest0-21swapper/109:11:591
3078799140,12cyclictest0-21swapper/110:50:381
3078799140,12cyclictest0-21swapper/108:20:431
3078799140,12cyclictest0-21swapper/107:15:181
30784991411,2cyclictest7774-21kworker/u8:109:07:040
3078499141,12cyclictest27297-21ssh09:55:160
3078499140,2cyclictest0-21swapper/011:29:050
3078499140,12cyclictest0-21swapper/011:11:180
3078499140,12cyclictest0-21swapper/008:20:220
3079099130,2cyclictest0-21swapper/307:24:013
3079099130,12cyclictest0-21swapper/308:21:043
30789991310,2cyclictest16778-21kworker/u8:308:17:052
30789991310,2cyclictest0-21swapper/207:51:032
3078999130,2cyclictest0-21swapper/211:13:052
3078999130,2cyclictest0-21swapper/207:10:042
30787991310,2cyclictest2239-21kworker/u8:209:50:041
30787991310,2cyclictest10871-21kworker/u8:209:15:041
30787991310,2cyclictest0-21swapper/112:27:181
30787991310,2cyclictest0-21swapper/112:15:411
30787991310,2cyclictest0-21swapper/111:52:591
30787991310,2cyclictest0-21swapper/111:36:211
30787991310,2cyclictest0-21swapper/111:32:221
30787991310,2cyclictest0-21swapper/111:11:411
30787991310,2cyclictest0-21swapper/110:06:581
30787991310,2cyclictest0-21swapper/108:11:031
30787991310,2cyclictest0-21swapper/108:03:101
30787991310,2cyclictest0-21swapper/107:47:381
3078799130,2cyclictest0-21swapper/109:41:581
3078799130,12cyclictest0-21swapper/111:15:411
3078799130,12cyclictest0-21swapper/110:27:021
3078799130,12cyclictest0-21swapper/109:05:171
3078799130,12cyclictest0-21swapper/108:50:121
30784991310,2cyclictest0-21swapper/010:45:430
30784991310,2cyclictest0-21swapper/007:50:180
30784991310,2cyclictest0-21swapper/007:30:160
30784991310,2cyclictest0-21swapper/007:20:160
3078499130,2cyclictest0-21swapper/008:25:040
3078499130,2cyclictest0-21swapper/007:40:170
3078499130,12cyclictest0-21swapper/007:18:050
3078999120,2cyclictest0-21swapper/212:11:582
3078799129,2cyclictest4348-21kworker/u8:208:49:051
3078799129,2cyclictest14781-21kworker/u8:107:10:041
3078499129,2cyclictest0-21swapper/007:45:160
3078499120,2cyclictest0-21swapper/007:10:050
3079099110,2cyclictest0-21swapper/309:00:013
3078999110,2cyclictest0-21swapper/209:00:012
3078799118,2cyclictest27112-21kworker/u8:108:25:041
3078799118,2cyclictest19340-21kworker/u8:008:35:051
3078799118,2cyclictest19340-21kworker/u8:008:33:051
3078799118,2cyclictest10671-21kworker/u8:107:50:051
3078799118,2cyclictest0-21swapper/109:00:131
3078799110,9cyclictest0-21swapper/107:56:041
3078799110,3cyclictest6827-21munin-node1
3078799110,2cyclictest0-21swapper/107:35:111
3078499111,3cyclictest10579-21tr09:00:000
3078499110,2cyclictest0-21swapper/008:48:260
3078499110,2cyclictest0-21swapper/007:28:040
3078999107,2cyclictest0-21swapper/208:50:122
3078999102,6cyclictest14057-21timerandwakeup09:06:032
3078799100,9cyclictest0-21swapper/107:43:121
3078799100,8cyclictest0-21swapper/108:05:131
3078799100,2cyclictest8777-21munin-node1
3078499107,2cyclictest0-21swapper/008:05:140
307899996,2cyclictest0-21swapper/207:30:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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