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2026-07-24 - 01:28

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 Jul 23, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1673621110,1sleep30-21swapper/310:51:413
29348210998,6sleep00-21swapper/007:07:590
29217210980,5sleep30-21swapper/307:06:183
28580210997,6sleep20-21swapper/207:05:172
28773210796,6sleep10-21swapper/107:05:441
309212770,0sleep30-21swapper/308:30:183
176092760,0sleep00-21swapper/012:32:270
298652740,3sleep337-21rcuc/310:32:103
202552690,1sleep30-21swapper/311:29:253
44152550,1sleep00-21swapper/011:45:290
29534995317,34cyclictest0-21swapper/108:05:111
2953599482,12cyclictest0-21swapper/211:10:102
2953599370,35cyclictest13621-21diskmemload09:40:112
2953399300,28cyclictest0-21swapper/009:40:110
2953699291,2cyclictest0-21swapper/307:35:013
287702250,1sleep30-21swapper/311:37:353
192292250,0sleep00-21swapper/009:15:140
29535992320,2cyclictest9828-21kworker/u8:010:14:052
2953699221,19cyclictest0-21swapper/312:25:103
2953599223,2cyclictest0-21swapper/211:38:042
2953599223,2cyclictest0-21swapper/210:29:042
2953699211,2cyclictest0-21swapper/310:35:103
2953599212,5cyclictest0-21swapper/211:52:042
2953599212,2cyclictest0-21swapper/212:03:042
2953599212,2cyclictest0-21swapper/211:55:042
2953599212,2cyclictest0-21swapper/211:15:042
2953599212,2cyclictest0-21swapper/210:56:052
2953599212,2cyclictest0-21swapper/209:26:052
2953599212,2cyclictest0-21swapper/209:22:012
2953399210,18cyclictest0-21swapper/008:00:100
2953599203,2cyclictest0-21swapper/210:33:052
2953599201,2cyclictest0-21swapper/211:28:042
2953599201,2cyclictest0-21swapper/210:22:042
2953599201,18cyclictest0-21swapper/211:01:042
2953599200,3cyclictest0-21swapper/212:26:042
2953699193,14cyclictest0-21swapper/308:40:133
2953599190,2cyclictest0-21swapper/210:52:042
2953699181,14cyclictest0-21swapper/311:15:143
2953599172,2cyclictest0-21swapper/212:16:042
29534991714,2cyclictest9828-21kworker/u8:010:16:041
2953699162,12cyclictest381ktimersoftd/310:07:253
2953699161,13cyclictest24202-21sed08:15:133
2953699160,14cyclictest0-21swapper/309:26:013
2953599162,2cyclictest0-21swapper/209:33:042
29535991611,3cyclictest8755-21smart_sda07:36:012
29534991611,4cyclictest26369-21kworker/u8:009:51:041
2953399161,3cyclictest0-21swapper/007:55:170
2953399161,3cyclictest0-21swapper/007:54:590
2953699155,7cyclictest4562-21gdm-simple-gree10:58:583
2953699152,7cyclictest0-21swapper/310:30:003
2953699151,3cyclictest2313-21ntp_states11:10:173
29536991512,2cyclictest381ktimersoftd/312:09:543
29536991512,2cyclictest0-21swapper/312:00:043
29536991512,2cyclictest0-21swapper/309:10:133
29536991510,3cyclictest13621-21diskmemload10:00:233
2953699150,13cyclictest0-21swapper/309:52:133
2953599152,2cyclictest0-21swapper/212:34:042
2953599150,2cyclictest0-21swapper/212:35:042
2953599150,13cyclictest0-21swapper/209:05:262
29534991511,2cyclictest5234-21users11:46:061
2953399152,7cyclictest0-21swapper/008:20:000
2953399151,3cyclictest19606-21ssh11:28:260
29533991512,2cyclictest15771-21ssh09:45:120
2953399151,12cyclictest30356-21ssh12:12:220
29533991510,3cyclictest23836-21ssh12:39:380
29533991510,3cyclictest1269-21apt-get11:10:050
2953399150,13cyclictest0-21swapper/010:50:120
2953399150,13cyclictest0-21swapper/010:28:090
2953399150,13cyclictest0-21swapper/010:15:120
2953699145,6cyclictest3688-21Xorg08:04:593
2953699142,6cyclictest0-21swapper/310:45:013
2953699142,11cyclictest381ktimersoftd/309:31:143
29536991411,2cyclictest381ktimersoftd/311:40:593
29536991411,2cyclictest381ktimersoftd/309:40:123
29536991411,2cyclictest381ktimersoftd/307:46:023
29536991411,2cyclictest0-21swapper/307:41:033
2953699141,11cyclictest15421-21apt-get07:54:363
29536991410,2cyclictest7127-21ssh11:49:003
2953699140,12cyclictest3705-21aten2.4-expect08:45:113
2953599141,2cyclictest0-21swapper/208:38:052
2953599141,11cyclictest0-21swapper/208:50:122
2953599140,3cyclictest0-21swapper/210:05:052
2953499141,2cyclictest19562-21apt-get12:35:101
29534991411,2cyclictest32451-21ssh10:35:131
29534991411,2cyclictest29879-21kworker/u8:007:11:041
29534991411,2cyclictest26891-21kworker/u8:209:57:051
29534991411,2cyclictest1571-21kworker/u8:208:46:051
2953499140,12cyclictest1949-21munin-node1
2953399149,3cyclictest4890-21ssh12:20:010
2953399142,7cyclictest0-21swapper/008:55:000
2953399141,2cyclictest3728-21runrttasks12:18:080
2953399141,2cyclictest13886-21ssh09:10:050
2953399140,3cyclictest24484-21taskset11:33:280
2953399140,12cyclictest11356-21ssh12:25:560
2953399140,12cyclictest0-21swapper/009:51:560
2953399140,12cyclictest0-21swapper/009:25:010
2953399140,12cyclictest0-21swapper/008:55:170
2953699138,3cyclictest0-21swapper/311:30:173
29536991310,2cyclictest381ktimersoftd/309:57:233
29536991310,2cyclictest16011-21ssh12:30:383
29536991310,2cyclictest0-21swapper/311:22:543
29536991310,2cyclictest0-21swapper/310:15:173
2953699130,2cyclictest0-21swapper/312:20:053
2953699130,2cyclictest0-21swapper/311:53:343
2953699130,2cyclictest0-21swapper/309:35:333
2953699130,12cyclictest381ktimersoftd/310:11:333
2953699130,12cyclictest0-21swapper/309:46:253
2953699130,12cyclictest0-21swapper/308:50:153
2953699130,11cyclictest29736-21ssh12:11:243
2953699130,11cyclictest0-21swapper/311:05:133
2953699130,11cyclictest0-21swapper/310:20:033
2953599133,6cyclictest0-21swapper/208:57:572
29535991310,2cyclictest0-21swapper/211:40:572
29535991310,2cyclictest0-21swapper/211:23:102
29535991310,2cyclictest0-21swapper/211:09:252
29535991310,2cyclictest0-21swapper/209:45:182
29535991310,2cyclictest0-21swapper/209:13:412
29535991310,2cyclictest0-21swapper/208:30:122
2953599130,12cyclictest22521-21ssh11:31:002
2953599130,12cyclictest0-21swapper/210:16:252
2953599130,11cyclictest6177-21aten2.4-expect09:35:122
2953599130,11cyclictest18707-21ssh09:15:032
2953499136,5cyclictest0-21swapper/111:35:581
2953499131,10cyclictest0-21swapper/107:54:571
29534991310,2cyclictest26369-21kworker/u8:009:43:041
29534991310,2cyclictest2192-21kworker/u8:210:48:041
29534991310,2cyclictest15746-21kworker/u8:010:58:021
29534991310,2cyclictest1105-21kworker/u8:110:10:041
29534991310,2cyclictest0-21swapper/112:20:531
29534991310,2cyclictest0-21swapper/111:31:231
29534991310,2cyclictest0-21swapper/111:06:231
29534991310,2cyclictest0-21swapper/110:02:231
29534991310,2cyclictest0-21swapper/109:10:141
29534991310,2cyclictest0-21swapper/107:20:121
2953499130,2cyclictest0-21swapper/112:10:131
2953499130,2cyclictest0-21swapper/111:25:111
2953499130,12cyclictest0-21swapper/111:40:131
2953499130,12cyclictest0-21swapper/111:00:231
2953499130,12cyclictest0-21swapper/109:39:231
2953499130,12cyclictest0-21swapper/107:25:131
2953499130,11cyclictest13621-21diskmemload09:15:431
2953499130,11cyclictest0-21swapper/112:05:411
2953399138,3cyclictest32495-21latency07:15:190
2953399138,3cyclictest25984-21basename08:20:110
2953399131,6cyclictest0-21swapper/007:20:000
29533991310,2cyclictest0-21swapper/011:59:290
29533991310,2cyclictest0-21swapper/011:40:390
29533991310,2cyclictest0-21swapper/011:23:320
29533991310,2cyclictest0-21swapper/011:08:380
29533991310,2cyclictest0-21swapper/011:01:560
29533991310,2cyclictest0-21swapper/010:45:130
29533991310,2cyclictest0-21swapper/010:01:210
29533991310,2cyclictest0-21swapper/009:57:220
29533991310,2cyclictest0-21swapper/009:35:580
2953399130,2cyclictest32751-21ssh09:29:250
2953399130,2cyclictest0-21swapper/012:00:040
2953399130,2cyclictest0-21swapper/011:51:160
2953399130,2cyclictest0-21swapper/011:36:040
2953399130,2cyclictest0-21swapper/011:15:200
2953399130,2cyclictest0-21swapper/010:35:060
2953399130,12cyclictest0-21swapper/010:58:380
2953399130,12cyclictest0-21swapper/010:41:050
2953399130,12cyclictest0-21swapper/010:32:500
2953399130,12cyclictest0-21swapper/009:30:430
274462130,2sleep20-21swapper/209:56:062
2953699129,2cyclictest381ktimersoftd/311:55:213
2953699129,2cyclictest0-21swapper/312:17:563
2953699129,2cyclictest0-21swapper/311:01:433
2953699129,2cyclictest0-21swapper/310:45:093
2953699129,2cyclictest0-21swapper/309:22:343
2953699129,2cyclictest0-21swapper/307:21:013
2953699122,6cyclictest0-21swapper/308:11:013
2953699120,2cyclictest0-21swapper/312:36:443
2953699120,2cyclictest0-21swapper/308:56:033
2953699120,11cyclictest0-21swapper/309:05:133
2953699120,11cyclictest0-21swapper/307:15:153
2953599129,2cyclictest13621-21diskmemload10:37:172
2953599129,2cyclictest0-21swapper/212:10:052
2953599129,2cyclictest0-21swapper/208:26:022
2953599123,6cyclictest0-21swapper/208:06:012
2953599122,7cyclictest0-21swapper/207:24:582
2953599120,2cyclictest0-21swapper/212:20:052
2953599120,2cyclictest0-21swapper/209:51:542
2953599120,2cyclictest0-21swapper/209:00:042
2953599120,11cyclictest1470-21ssh10:03:342
2953599120,11cyclictest0-21swapper/210:46:342
2953599120,11cyclictest0-21swapper/210:40:172
2953599120,11cyclictest0-21swapper/207:50:152
2953499129,2cyclictest31127-21kworker/u8:112:30:041
2953499129,2cyclictest31127-21kworker/u8:112:29:041
2953499129,2cyclictest23678-21kworker/u8:108:30:041
2953499129,2cyclictest23678-21kworker/u8:107:46:041
2953499129,2cyclictest15746-21kworker/u8:011:10:041
2953499129,2cyclictest15418-21kworker/u8:110:21:051
2953499129,2cyclictest0-21swapper/112:19:071
2953499129,2cyclictest0-21swapper/111:57:331
2953499129,2cyclictest0-21swapper/111:50:231
2953499129,2cyclictest0-21swapper/110:40:131
2953499129,2cyclictest0-21swapper/109:22:031
2953499129,2cyclictest0-21swapper/107:40:181
2953499128,2cyclictest0-21swapper/110:25:131
2953499128,2cyclictest0-21swapper/108:50:181
2953499122,7cyclictest0-21swapper/108:18:591
2953499122,7cyclictest0-21swapper/108:13:011
2953499121,9cyclictest3728-21runrttasks08:00:111
2953499120,2cyclictest0-21swapper/110:07:131
2953499120,2cyclictest0-21swapper/109:45:201
2953499120,2cyclictest0-21swapper/109:27:221
2953499120,2cyclictest0-21swapper/107:35:191
2953499120,11cyclictest0-21swapper/111:24:241
2953499120,11cyclictest0-21swapper/110:50:131
2953499120,11cyclictest0-21swapper/110:30:431
2953499120,11cyclictest0-21swapper/109:00:131
2953499120,11cyclictest0-21swapper/107:55:151
2953399122,6cyclictest0-21swapper/008:35:010
2953399120,2cyclictest0-21swapper/010:22:110
2953399120,2cyclictest0-21swapper/007:26:000
2953399120,11cyclictest0-21swapper/012:06:190
2953399120,11cyclictest0-21swapper/010:10:560
2953399120,11cyclictest0-21swapper/010:05:210
2953399120,11cyclictest0-21swapper/008:35:200
2953399120,11cyclictest0-21swapper/008:05:160
2953699117,3cyclictest21856-21ssh09:17:443
2953699114,5cyclictest32491-21cut08:35:153
2953699112,7cyclictest0-21swapper/308:23:583
2953699112,5cyclictest0-21swapper/307:31:003
2953599119,1cyclictest0-21swapper/212:07:042
2953599118,2cyclictest0-21swapper/207:25:172
2953599118,2cyclictest0-21swapper/207:10:152
2953599111,5cyclictest0-21swapper/208:25:002
2953599110,2cyclictest0-21swapper/211:46:512
2953499118,2cyclictest23678-21kworker/u8:108:58:011
2953499118,2cyclictest0-21swapper/112:03:361
2953499118,2cyclictest0-21swapper/108:40:141
2953499111,8cyclictest6360-21apt-get11:15:111
2953499110,9cyclictest32519-21grep08:35:151
2953499110,2cyclictest0-21swapper/108:25:391
2953399111,6cyclictest0-21swapper/007:12:370
2953399110,2cyclictest0-21swapper/009:00:110
173562110,2sleep20-21swapper/207:56:252
2953699105,3cyclictest31537-21cron07:15:003
2953699102,7cyclictest0-21swapper/307:58:013
2953699101,7cyclictest11609-21sed09:05:003
2953699100,9cyclictest0-21swapper/308:05:163
2953599108,1cyclictest0-21swapper/208:45:162
2953599107,2cyclictest0-21swapper/207:30:162
2953499107,2cyclictest5145-21kworker/u8:207:34:041
2953499107,2cyclictest23678-21kworker/u8:107:18:051
2953499107,2cyclictest0-21swapper/108:20:111
2953499102,6cyclictest0-21swapper/109:06:591
2953399107,2cyclictest0-21swapper/009:05:050
2953399105,3cyclictest9530-21wc07:40:000
2953399105,3cyclictest28073-21aten2.4_r3power08:25:120
2953399105,3cyclictest11948-21grep07:45:140
2953399100,7cyclictest0-21swapper/008:47:580
15812100,2sleep20-21swapper/208:40:132
295369994,3cyclictest27920-21chrt08:25:103
295359992,6cyclictest0-21swapper/208:17:512
295359992,6cyclictest0-21swapper/208:02:472
295359991,3cyclictest3728-21runrttasks07:17:322
295359991,2cyclictest0-21swapper/208:14:052
295359990,4cyclictest0-21swapper/207:50:002
295339996,2cyclictest0-21swapper/008:40:220
295339996,2cyclictest0-21swapper/007:31:020
295339994,3cyclictest22912-21taskset08:10:380
295339994,3cyclictest11249-21sendmail-mta07:43:360
295369980,6cyclictest0-21swapper/307:25:123
295359983,3cyclictest9633-21hostname07:40:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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