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2026-05-06 - 03:19

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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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 highest latencies:
System rack3slot6s.osadl.org (updated Wed May 06, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1913211089,16sleep00-21swapper/019:09:430
1718210797,6sleep20-21swapper/219:07:122
1704210785,16sleep30-21swapper/319:07:013
1236210796,6sleep10-21swapper/119:06:031
257142770,0sleep10-21swapper/121:53:471
304332750,0sleep00-21swapper/021:59:060
304032740,0sleep00-21swapper/022:34:210
1963993616,18cyclictest17110-21diskmemload22:45:110
276352240,1sleep00-21swapper/020:15:110
196699233,18cyclictest0-21swapper/321:15:113
224372220,1sleep123-21ksoftirqd/100:10:301
196399220,20cyclictest0-21swapper/023:20:100
196499210,19cyclictest0-21swapper/121:20:121
196399210,19cyclictest0-21swapper/019:25:100
196699201,17cyclictest0-21swapper/323:30:093
1965992016,2cyclictest22143-21kworker/u8:021:54:042
196599201,17cyclictest5780-1kworker/u9:122:45:122
196399200,18cyclictest0-21swapper/019:20:120
1965991916,2cyclictest16855-21kworker/u8:000:18:062
1965991916,2cyclictest15314-21kworker/u8:121:10:052
196599191,2cyclictest0-21swapper/221:43:042
196499199,8cyclictest0-21swapper/100:05:201
308862180,0sleep20-21swapper/223:45:152
1965991815,2cyclictest5419-21kworker/u8:119:22:052
1965991815,2cyclictest31498-21kworker/u8:220:42:052
1965991815,2cyclictest24567-21kworker/u8:020:14:052
1965991815,2cyclictest15314-21kworker/u8:121:24:052
1965991815,2cyclictest15131-21kworker/u8:023:42:052
1965991813,3cyclictest31498-21kworker/u8:221:04:052
196599180,2cyclictest0-21swapper/222:11:052
1964991814,2cyclictest207150irq/24-eth123:50:121
1966991714,2cyclictest12633-21kworker/u8:222:22:053
1965991714,2cyclictest5419-21kworker/u8:119:17:052
1965991714,2cyclictest31378-21kworker/u8:221:37:052
1965991714,2cyclictest27553-21kworker/u8:120:37:052
1965991714,2cyclictest20293-21kworker/u8:223:04:052
1965991714,2cyclictest15131-21kworker/u8:023:36:062
1965991714,2cyclictest15131-21kworker/u8:023:22:052
1965991714,2cyclictest11711-21kworker/u8:019:37:042
1965991714,2cyclictest10695-21kworker/u8:100:00:062
196599171,2cyclictest0-21swapper/222:02:052
196599170,12cyclictest0-21swapper/222:28:052
196599170,12cyclictest0-21swapper/219:11:042
1966991613,2cyclictest5731-21kworker/u8:000:31:043
1966991612,2cyclictest15314-21kworker/u8:121:13:053
1966991611,3cyclictest16855-21kworker/u8:000:09:043
196699160,13cyclictest0-21swapper/322:55:523
1965991613,2cyclictest9310-21kworker/u8:020:52:042
1965991613,2cyclictest5419-21kworker/u8:119:42:022
1965991613,2cyclictest31378-21kworker/u8:221:34:052
1965991613,2cyclictest30563-21kworker/u8:223:54:052
1965991613,2cyclictest24567-21kworker/u8:020:19:042
1965991613,2cyclictest24567-21kworker/u8:020:08:052
1965991613,2cyclictest22143-21kworker/u8:021:55:052
1965991613,2cyclictest22133-21kworker/u8:021:27:052
1965991613,2cyclictest18765-21kworker/u8:020:00:042
1965991613,2cyclictest18765-21kworker/u8:019:51:042
1965991613,2cyclictest16855-21kworker/u8:000:12:052
1965991613,2cyclictest15314-21kworker/u8:121:09:052
196599160,2cyclictest0-21swapper/219:26:042
196599160,11cyclictest0-21swapper/222:50:052
162202160,1sleep30-21swapper/300:04:443
1966991511,2cyclictest30616-21python20:21:023
1966991510,3cyclictest0-21swapper/320:11:023
1965991512,2cyclictest5731-21kworker/u8:000:34:052
1965991512,2cyclictest4108-21kworker/u8:023:56:042
1965991512,2cyclictest3404-21kworker/u8:123:19:052
1965991512,2cyclictest31498-21kworker/u8:220:57:052
1965991512,2cyclictest31378-21kworker/u8:221:45:052
1965991512,2cyclictest15131-21kworker/u8:023:12:062
196599150,3cyclictest22767-21ssh21:15:162
196599150,3cyclictest0-21swapper/219:35:002
196599150,2cyclictest0-21swapper/222:56:042
196599150,10cyclictest0-21swapper/223:27:052
1964991512,2cyclictest0-21swapper/100:19:561
196499150,13cyclictest27794-21runrttasks22:30:421
196499150,13cyclictest23573-21threads23:01:031
196499150,13cyclictest0-21swapper/100:25:441
1963991511,2cyclictest0-21swapper/022:08:560
196399150,13cyclictest23983-21sed21:16:040
196399150,13cyclictest17110-21diskmemload23:11:360
196699149,3cyclictest22440-21ssh00:10:323
196699149,3cyclictest0-21swapper/323:20:163
196699142,6cyclictest0-21swapper/319:14:593
1966991411,2cyclictest20681-21kworker/u8:123:35:053
196699140,12cyclictest27736-21ssh00:16:123
196699140,12cyclictest11380-21ssh22:12:573
1965991411,2cyclictest31498-21kworker/u8:220:31:052
1965991411,2cyclictest30530-21kworker/u8:200:28:052
1965991411,2cyclictest27553-21kworker/u8:120:27:042
1965991411,2cyclictest16855-21kworker/u8:000:20:042
1965991411,2cyclictest16855-21kworker/u8:000:07:052
1965991411,2cyclictest12633-21kworker/u8:222:24:062
1965991411,2cyclictest0-21swapper/200:38:492
196599140,9cyclictest0-21swapper/219:56:022
196599140,2cyclictest0-21swapper/219:48:052
196499149,3cyclictest0-21swapper/119:45:001
1964991411,2cyclictest0-21swapper/122:43:561
196499140,12cyclictest27708-21runrttasks23:40:551
196499140,12cyclictest207150irq/24-eth123:22:221
196499140,12cyclictest17110-21diskmemload21:35:251
196499140,12cyclictest12606-21munin-node1
196499140,12cyclictest0-21swapper/123:55:291
196499140,12cyclictest0-21swapper/122:06:321
196499140,12cyclictest0-21swapper/121:40:501
196499140,12cyclictest0-21swapper/121:18:051
196499140,12cyclictest0-21swapper/121:11:031
196499140,12cyclictest0-21swapper/100:24:011
196399149,3cyclictest0-21swapper/000:13:140
1963991411,2cyclictest0-21swapper/023:36:260
1963991411,2cyclictest0-21swapper/000:33:570
196399140,12cyclictest17110-21diskmemload23:05:190
196399140,12cyclictest127402sleep000:00:160
196699138,3cyclictest13333-21iostat_ios22:50:173
196699133,6cyclictest0-21swapper/322:45:003
196699132,8cyclictest0-21swapper/323:46:593
196699132,6cyclictest0-21swapper/320:20:003
196699132,6cyclictest0-21swapper/319:30:003
196699131,7cyclictest0-21swapper/322:40:013
1966991310,2cyclictest17110-21diskmemload22:25:133
1966991310,2cyclictest15131-21kworker/u8:023:06:043
1966991310,2cyclictest0-21swapper/323:58:063
1966991310,2cyclictest0-21swapper/323:51:403
1966991310,2cyclictest0-21swapper/323:10:383
1966991310,2cyclictest0-21swapper/321:30:593
1966991310,2cyclictest0-21swapper/319:35:153
196699130,2cyclictest17110-21diskmemload22:09:093
196699130,2cyclictest0-21swapper/323:15:173
196699130,2cyclictest0-21swapper/321:59:483
196699130,2cyclictest0-21swapper/300:36:313
196699130,11cyclictest0-21swapper/323:42:413
196699130,11cyclictest0-21swapper/322:19:063
196699130,11cyclictest0-21swapper/300:25:083
1965991310,2cyclictest0-21swapper/222:30:122
196599130,2cyclictest0-21swapper/223:05:292
196599130,2cyclictest0-21swapper/222:08:042
196599130,12cyclictest0-21swapper/222:35:102
196599130,12cyclictest0-21swapper/220:45:192
196499139,2cyclictest0-21swapper/123:35:181
1964991310,2cyclictest17110-21diskmemload22:26:161
1964991310,2cyclictest0-21swapper/123:28:261
1964991310,2cyclictest0-21swapper/123:15:441
1964991310,2cyclictest0-21swapper/122:14:151
1964991310,2cyclictest0-21swapper/122:02:231
1964991310,2cyclictest0-21swapper/121:56:551
1964991310,2cyclictest0-21swapper/119:30:201
196499130,2cyclictest837-21sh21:26:131
196499130,2cyclictest13579-21smartctl22:15:161
196499130,2cyclictest0-21swapper/123:30:241
196499130,2cyclictest0-21swapper/123:07:231
196499130,2cyclictest0-21swapper/121:45:351
196499130,2cyclictest0-21swapper/120:45:151
196499130,2cyclictest0-21swapper/120:30:401
196499130,2cyclictest0-21swapper/119:20:141
196499130,2cyclictest0-21swapper/100:36:211
196499130,2cyclictest0-21swapper/100:00:011
196499130,12cyclictest0-21swapper/123:47:551
196499130,12cyclictest0-21swapper/122:50:301
196399139,3cyclictest17394-21ssh21:10:080
196399138,3cyclictest9816-21sh22:11:010
196399135,6cyclictest1962-21cyclictest21:09:590
196399131,10cyclictest705-21ssh00:22:410
196399130,3cyclictest24571-21ssh23:02:180
196399130,2cyclictest17110-21diskmemload21:35:570
196399130,2cyclictest0-21swapper/023:44:580
196399130,2cyclictest0-21swapper/023:31:270
196399130,12cyclictest0-21swapper/023:59:570
196399130,12cyclictest0-21swapper/021:51:470
196399130,11cyclictest0-21swapper/020:55:130
44922120,1sleep00-21swapper/023:51:030
196699129,2cyclictest0-21swapper/321:25:263
196699129,2cyclictest0-21swapper/321:00:183
196699122,7cyclictest0-21swapper/320:32:593
196699122,7cyclictest0-21swapper/320:06:593
196699120,7cyclictest0-21swapper/320:00:003
196699120,2cyclictest0-21swapper/322:48:383
196699120,2cyclictest0-21swapper/321:51:003
196699120,2cyclictest0-21swapper/321:22:413
196699120,2cyclictest0-21swapper/320:50:503
196699120,11cyclictest0-21swapper/323:25:273
196699120,11cyclictest0-21swapper/323:02:203
196699120,11cyclictest0-21swapper/322:00:073
196699120,11cyclictest0-21swapper/321:47:483
196699120,11cyclictest0-21swapper/321:42:263
196699120,11cyclictest0-21swapper/321:35:173
196699120,11cyclictest0-21swapper/300:20:063
196699120,10cyclictest0-21swapper/322:31:373
196599121,8cyclictest0-21swapper/220:22:022
196599120,11cyclictest17110-21diskmemload22:41:372
196599120,11cyclictest0-21swapper/223:32:292
196499129,2cyclictest0-21swapper/123:10:541
196499129,2cyclictest0-21swapper/122:45:481
196499129,2cyclictest0-21swapper/122:20:081
196499129,2cyclictest0-21swapper/121:30:301
196499129,2cyclictest0-21swapper/120:20:401
196499129,2cyclictest0-21swapper/120:10:141
196499129,2cyclictest0-21swapper/119:10:201
196499127,3cyclictest8700-21grep19:25:121
196499121,9cyclictest0-21swapper/119:50:131
196499121,3cyclictest5227-21munin-node1
196499120,2cyclictest0-21swapper/120:15:171
196499120,11cyclictest0-21swapper/122:55:511
196499120,11cyclictest0-21swapper/122:35:241
196499120,11cyclictest0-21swapper/120:55:151
196499120,11cyclictest0-21swapper/119:16:021
196499120,11cyclictest0-21swapper/100:31:191
196399129,2cyclictest0-21swapper/022:40:100
196399129,2cyclictest0-21swapper/022:25:290
196399129,2cyclictest0-21swapper/021:00:370
196399129,2cyclictest0-21swapper/019:55:130
196399128,3cyclictest0-21swapper/021:29:200
196399122,5cyclictest0-21swapper/021:40:000
196399121,9cyclictest31249-21munin-run20:25:000
196399120,2cyclictest0-21swapper/022:16:570
196399120,2cyclictest0-21swapper/000:17:390
196399120,11cyclictest0-21swapper/023:47:360
196399120,11cyclictest0-21swapper/022:52:320
196399120,11cyclictest0-21swapper/022:01:170
196399120,11cyclictest0-21swapper/021:20:150
196399120,11cyclictest0-21swapper/019:30:130
196399120,11cyclictest0-21swapper/000:39:160
196399120,10cyclictest0-21swapper/023:15:570
196399120,10cyclictest0-21swapper/022:36:480
165452120,2sleep20-21swapper/222:19:012
196699117,2cyclictest0-21swapper/319:15:203
196699112,6cyclictest0-21swapper/321:05:593
196699111,7cyclictest0-21swapper/320:28:583
196699111,6cyclictest0-21swapper/320:55:113
196699110,2cyclictest0-21swapper/319:40:483
196499118,2cyclictest0-21swapper/119:45:121
196499111,8cyclictest23412-21apt-get20:05:131
196499111,2cyclictest13288-21gdbus21:00:051
196499110,9cyclictest19374-21munin-node1
196399118,2cyclictest0-21swapper/021:47:080
196399118,2cyclictest0-21swapper/021:31:340
196399118,2cyclictest0-21swapper/020:46:040
196399117,2cyclictest17110-21diskmemload22:55:490
196399111,6cyclictest17110-21diskmemload22:21:580
196399111,5cyclictest0-21swapper/000:05:000
196399110,1cyclictest0-21swapper/019:15:180
196399110,10cyclictest0-21swapper/023:28:580
196399110,10cyclictest0-21swapper/020:50:150
196399110,10cyclictest0-21swapper/020:41:030
196699105,3cyclictest5464-21tr20:40:143
196699105,3cyclictest3728-21runrttasks19:33:053
196499107,2cyclictest0-21swapper/120:25:121
196499106,2cyclictest9769-21perl20:50:141
196499102,7cyclictest0-21swapper/120:36:591
196499100,8cyclictest0-21swapper/121:05:131
196499100,8cyclictest0-21swapper/120:00:121
196399107,2cyclictest0-21swapper/020:35:170
196399107,2cyclictest0-21swapper/000:25:020
196399105,3cyclictest3677-21head19:11:060
196399100,9cyclictest0-21swapper/020:30:100
19669996,2cyclictest0-21swapper/319:21:043
19669994,3cyclictest7321-21aten2.4_r3power20:45:133
19669994,3cyclictest3728-21runrttasks19:45:013
19669994,3cyclictest3128-21cut20:35:113
19669994,3cyclictest21400-21munin-node3
19669994,3cyclictest18531-21load19:50:173
19639994,3cyclictest21713-21df_abs20:00:130
19639994,3cyclictest16016-21grep19:45:130
19639993,4cyclictest24827-21taskset20:06:040
19639991,6cyclictest0-21swapper/020:26:330
19639991,6cyclictest0-21swapper/019:51:250
19639990,1cyclictest0-21swapper/019:35:150
14754290,1sleep00-21swapper/019:40:260
19639983,3cyclictest26274-21grep20:10:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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