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2026-05-25 - 00:17

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack4slot1s.osadl.org (updated Sun May 24, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92052990,3sleep20-21swapper/212:27:482
92052990,3sleep20-21swapper/212:27:482
161992920,2sleep20-21swapper/209:52:472
161992920,2sleep20-21swapper/209:52:472
161992920,2sleep20-21swapper/209:52:472
122532710,2chrt12255-21ntpq11:07:540
122532710,2chrt12255-21ntpq11:07:540
145062690,3sleep20-21swapper/209:47:492
145062690,3sleep20-21swapper/209:47:492
251442600,1chrt0-21swapper/008:47:570
251442600,1chrt0-21swapper/008:47:570
270422590,4sleep20-21swapper/207:27:512
270422590,4sleep20-21swapper/207:27:512
41622580,3sleep30-21swapper/310:47:473
41622580,3sleep30-21swapper/310:47:473
86542520,3sleep00-21swapper/009:32:470
86542520,3sleep00-21swapper/009:32:470
86542520,3sleep00-21swapper/009:32:470
234062490,3chrt0-21swapper/308:43:503
234062490,3chrt0-21swapper/308:43:503
2117999480,29cyclictest20696-21seq11:32:350
2117999471,33cyclictest14708-21taskset11:13:050
2117999471,33cyclictest14708-21taskset11:13:050
2117999471,32cyclictest6811-21seq12:20:470
2117999471,32cyclictest6811-21seq12:20:470
2117999471,32cyclictest3597-21seq10:45:110
2117999471,32cyclictest3597-21seq10:45:110
2117999471,31cyclictest28118-21chrt11:52:120
2117999471,31cyclictest28118-21chrt11:52:120
2117999471,2cyclictest0-21swapper/007:24:520
2117999471,2cyclictest0-21swapper/007:24:520
2117999470,34cyclictest31969-21chrt12:02:380
2117999470,34cyclictest31969-21chrt12:02:380
2117999470,32cyclictest4852-21seq12:14:560
2117999470,32cyclictest4852-21seq12:14:560
2117999461,32cyclictest32592-21sed07:42:500
2117999461,32cyclictest32592-21sed07:42:500
2117999461,32cyclictest32592-21sed07:42:500
2117999461,31cyclictest5493-21taskset10:50:180
2117999461,31cyclictest5493-21taskset10:50:180
2117999461,31cyclictest27096-21chrt08:53:240
2117999461,31cyclictest27096-21chrt08:53:240
2117999461,30cyclictest8458-21chrt08:04:350
2117999461,30cyclictest8458-21chrt08:04:350
2117999461,30cyclictest8458-21chrt08:04:350
2117999461,30cyclictest29776-21chrt11:54:340
2117999461,30cyclictest29776-21chrt11:54:340
2117999461,30cyclictest26846-21chrt10:22:280
2117999461,30cyclictest19681-21taskset08:34:100
2117999461,30cyclictest15315-21chrt09:48:190
2117999461,30cyclictest15315-21chrt09:48:190
2117999461,28cyclictest29121-21chrt09:00:310
2117999461,28cyclictest29121-21chrt09:00:310
2117999461,28cyclictest28561-21chrt10:25:170
2117999461,28cyclictest28561-21chrt10:25:170
2117999461,27cyclictest1183-21chrt12:05:470
2117999461,27cyclictest1183-21chrt12:05:470
2117999461,27cyclictest1183-21chrt12:05:470
2117999460,32cyclictest29797-21taskset07:36:410
2117999460,32cyclictest29797-21taskset07:36:410
2117999460,32cyclictest29797-21taskset07:36:410
2117999460,32cyclictest26252-21chrt11:47:100
2117999460,32cyclictest26252-21chrt11:47:100
2117999460,32cyclictest21511-21taskset08:38:400
2117999460,32cyclictest21511-21taskset08:38:400
2117999451,34cyclictest2219-21which07:47:540
2117999451,34cyclictest2219-21which07:47:540
2117999451,34cyclictest2219-21which07:47:540
2117999451,32cyclictest12343-21taskset08:16:210
2117999451,32cyclictest12343-21taskset08:16:210
2117999451,32cyclictest10957-21taskset11:03:040
2117999451,32cyclictest10957-21taskset11:03:040
2117999451,31cyclictest9927-21chrt09:36:330
2117999451,31cyclictest9927-21chrt09:36:330
2117999451,31cyclictest8542-21taskset12:23:470
2117999451,31cyclictest8542-21taskset12:23:470
2117999451,31cyclictest4829-21chrt07:56:270
2117999451,31cyclictest4829-21chrt07:56:270
2117999451,31cyclictest4829-21chrt07:56:270
2117999451,31cyclictest30833-21chrt09:03:160
2117999451,31cyclictest30833-21chrt09:03:160
2117999451,31cyclictest23095-21taskset10:12:150
2117999451,31cyclictest23095-21taskset10:12:150
2117999451,30cyclictest24373-21taskset11:42:140
2117999451,30cyclictest24373-21taskset11:42:140
2117999451,29cyclictest10409-21seq12:28:300
2117999451,29cyclictest10409-21seq12:28:300
2117999451,28cyclictest32735-21taskset09:08:490
2117999451,28cyclictest32735-21taskset09:08:490
2117999451,28cyclictest31556-21seq07:40:190
2117999451,28cyclictest31556-21seq07:40:190
2117999451,1cyclictest0-21swapper/012:35:400
2117999451,1cyclictest0-21swapper/012:35:400
2117999451,1cyclictest0-21swapper/012:35:400
2117999451,1cyclictest0-21swapper/010:56:520
2117999451,1cyclictest0-21swapper/010:56:520
2117999450,31cyclictest8107-21seq09:32:270
2117999450,31cyclictest32133-21taskset10:33:200
2117999450,31cyclictest32133-21taskset10:33:200
2117999450,31cyclictest32133-21taskset10:33:200
2117999450,31cyclictest2363-21taskset09:16:070
2117999450,31cyclictest2363-21taskset09:16:070
2117999450,31cyclictest19148-21chrt09:59:450
2117999450,31cyclictest19148-21chrt09:59:450
2117999450,31cyclictest18561-21chrt11:24:230
2117999450,31cyclictest18561-21chrt11:24:230
2117999441,41cyclictest10755-21kworker/u9:3+xprtiod12:38:400
2117999441,41cyclictest10755-21kworker/u9:3+xprtiod12:38:400
2117999441,30cyclictest4246-21chrt09:21:170
2117999441,30cyclictest4246-21chrt09:21:170
2117999441,30cyclictest2991-21seq12:09:570
2117999441,30cyclictest2991-21seq12:09:570
2117999441,29cyclictest6561-21chrt07:59:250
2117999441,29cyclictest6561-21chrt07:59:250
2117999441,29cyclictest6561-21chrt07:59:250
2117999441,29cyclictest14078-21seq08:19:230
2117999441,29cyclictest14078-21seq08:19:230
2117999441,28cyclictest30368-21chrt10:29:350
2117999441,28cyclictest30368-21chrt10:29:350
2117999441,28cyclictest23376-21chrt08:43:270
2117999441,28cyclictest23376-21chrt08:43:270
2117999441,25cyclictest22303-21seq11:34:320
2117999441,25cyclictest22303-21seq11:34:320
2117999440,31cyclictest17192-21runrttasks09:53:290
2117999440,31cyclictest17192-21runrttasks09:53:290
2117999440,31cyclictest17192-21runrttasks09:53:290
2117999440,30cyclictest24670-21seq10:13:310
2117999440,30cyclictest24670-21seq10:13:310
2117999440,29cyclictest13744-21taskset09:47:060
2117999440,29cyclictest13744-21taskset09:47:060
2117999431,30cyclictest9115-21chrt10:58:380
2117999431,30cyclictest9115-21chrt10:58:380
2117999431,30cyclictest9115-21chrt10:58:380
2117999431,29cyclictest17813-21seq08:29:080
2117999431,29cyclictest17813-21seq08:29:080
2117999431,27cyclictest5928-21chrt09:23:180
2117999431,27cyclictest5928-21chrt09:23:180
2117999431,27cyclictest5928-21chrt09:23:180
2117999431,27cyclictest27734-21runrttasks07:29:020
2117999431,27cyclictest27734-21runrttasks07:29:020
2117999431,26cyclictest11519-21seq09:38:020
2117999431,26cyclictest11519-21seq09:38:020
2117999431,26cyclictest11519-21seq09:38:020
2117999430,30cyclictest15908-21chrt08:23:330
2117999430,30cyclictest15908-21chrt08:23:330
157672430,4sleep20-21swapper/211:17:492
157672430,4sleep20-21swapper/211:17:492
2117999421,2cyclictest0-21swapper/010:38:090
2117999421,2cyclictest0-21swapper/010:38:090
2117999421,26cyclictest10241-21chrt08:08:130
2117999421,26cyclictest10241-21chrt08:08:130
2117999421,26cyclictest10241-21chrt08:08:130
2117999421,25cyclictest21786-21expr10:07:470
2117999411,27cyclictest20984-21taskset10:04:030
268522400,2sleep126886-21sendmail10:22:341
2117999401,28cyclictest749-21runrttasks11:19:320
2117999401,28cyclictest749-21runrttasks11:19:320
194392400,3sleep20-21swapper/210:02:362
194392400,3sleep20-21swapper/210:02:362
188262400,4sleep20-21swapper/211:27:342
188262400,4sleep20-21swapper/211:27:342
35822390,3sleep30-21swapper/309:17:553
35822390,3sleep30-21swapper/309:17:553
204012390,3sleep30-21swapper/310:02:533
204012390,3sleep30-21swapper/310:02:533
87692380,4sleep20-21swapper/210:57:552
87692380,4sleep20-21swapper/210:57:552
87692380,4sleep20-21swapper/210:57:552
249512380,2sleep30-21swapper/311:42:473
249512380,2sleep30-21swapper/311:42:473
245902380,4sleep20-21swapper/208:47:512
245902380,4sleep20-21swapper/208:47:512
296372370,2sleep30-21swapper/309:02:473
296372370,2sleep30-21swapper/309:02:473
207772350,2chrt0-21swapper/208:37:502
207772350,2chrt0-21swapper/208:37:502
42862340,2sleep30-21swapper/312:12:593
42862340,2sleep30-21swapper/312:12:593
21181993426,6cyclictest3975-21latency_hist10:47:421
21181993426,6cyclictest3975-21latency_hist10:47:421
21181993425,7cyclictest1156-21head09:12:471
263302330,3sleep20-21swapper/207:27:432
263302330,3sleep20-21swapper/207:27:432
252122330,3sleep10-21swapper/111:42:491
252122330,3sleep10-21swapper/111:42:491
21181993324,7cyclictest9619-21needreboot08:07:521
21181993324,7cyclictest9619-21needreboot08:07:521
21181993324,7cyclictest9619-21needreboot08:07:521
21181993224,6cyclictest9107-21cpu12:27:471
21181993224,6cyclictest9107-21cpu12:27:471
21181993126,3cyclictest32018-21grep10:32:571
21181993126,3cyclictest32018-21grep10:32:571
21181993126,3cyclictest32018-21grep10:32:571
21181993124,6cyclictest21096-21cut11:32:471
21181993124,6cyclictest21096-21cut11:32:471
21181993123,6cyclictest11595-21cpuspeed11:07:461
63052300,3sleep30-21swapper/309:27:363
63052300,3sleep30-21swapper/309:27:363
63052300,3sleep30-21swapper/309:27:363
21181993024,4cyclictest19194-21runrttasks10:00:201
21181993024,4cyclictest19194-21runrttasks10:00:201
21181993023,5cyclictest8501-21fschecks_count09:32:461
21181993023,5cyclictest8501-21fschecks_count09:32:461
21181993023,5cyclictest8501-21fschecks_count09:32:461
21181993023,5cyclictest12918-21fschecks_time08:17:481
21181993023,5cyclictest12918-21fschecks_time08:17:481
119652300,3sleep10-21swapper/108:12:561
119652300,3sleep10-21swapper/108:12:561
21181992924,3cyclictest28059-21kworker/u9:1-xprtiod09:12:471
21181992922,5cyclictest4216-21fschecks_time10:47:481
21181992922,5cyclictest4216-21fschecks_time10:47:481
2118199292,12cyclictest60-21kcompactd008:34:331
123032290,3sleep20-21swapper/211:07:562
123032290,3sleep20-21swapper/211:07:562
21181992822,5cyclictest1346-21avahi-daemon08:22:551
21181992822,5cyclictest1346-21avahi-daemon08:22:551
21181992821,5cyclictest550-21cron12:17:471
21181992821,5cyclictest550-21cron12:17:471
21181992821,5cyclictest21178-21cyclictest09:06:581
21181992821,5cyclictest21178-21cyclictest09:06:581
21181992819,7cyclictest9475-21latency_hist11:02:351
21181992819,7cyclictest9475-21latency_hist11:02:351
21181992819,7cyclictest9475-21latency_hist11:02:351
21181992722,4cyclictest14178-21fschecks_count09:47:461
21181992720,4cyclictest0-21swapper/109:32:571
21181992720,4cyclictest0-21swapper/109:32:571
21181992620,5cyclictest14678-21systemd-journal07:36:501
21181992620,5cyclictest14678-21systemd-journal07:36:501
21181992620,5cyclictest14678-21systemd-journal07:36:501
21181992619,4cyclictest0-21swapper/109:37:511
21181992619,4cyclictest0-21swapper/109:37:511
21181992619,4cyclictest0-21swapper/109:37:511
21181992618,6cyclictest3433-21fschecks_count07:52:481
21181992618,6cyclictest3433-21fschecks_count07:52:481
21181992618,6cyclictest3433-21fschecks_count07:52:481
21185992518,4cyclictest296892sleep210:27:532
21185992518,4cyclictest296892sleep210:27:532
21181992521,3cyclictest20531-21mailstats10:02:541
21181992521,3cyclictest20531-21mailstats10:02:541
21181992520,3cyclictest0-21swapper/111:32:341
21181992519,4cyclictest31802-21latency_hist07:42:351
21181992519,4cyclictest31802-21latency_hist07:42:351
21181992519,4cyclictest2722-21unixbench-2d12:07:571
21181992519,4cyclictest2722-21unixbench-2d12:07:571
21181992518,5cyclictest7478-21if_wlan008:02:491
21181992518,5cyclictest7478-21if_wlan008:02:491
21181992518,5cyclictest7478-21if_wlan008:02:491
21181992518,5cyclictest27320-21processes11:47:551
21181992518,5cyclictest27320-21processes11:47:551
21181992518,5cyclictest13010-21fschecks_time12:37:461
21181992518,5cyclictest13010-21fschecks_time12:37:461
21181992518,5cyclictest0-21swapper/110:27:461
21181992518,5cyclictest0-21swapper/110:27:461
21181992517,6cyclictest1190-21idleruntime-cro07:47:341
21181992517,6cyclictest1190-21idleruntime-cro07:47:341
21181992517,6cyclictest1190-21idleruntime-cro07:47:341
21181992512,10cyclictest26331-21latency08:52:491
21181992512,10cyclictest26331-21latency08:52:491
106112250,3sleep20-21swapper/211:02:582
106112250,3sleep20-21swapper/211:02:582
2118199249,2cyclictest181rcu_preempt10:57:221
2118199249,2cyclictest181rcu_preempt10:57:221
21181992419,4cyclictest14678-21systemd-journal11:56:501
21181992419,4cyclictest14678-21systemd-journal11:56:501
21181992419,3cyclictest9023-21apache208:42:211
21181992419,3cyclictest9023-21apache208:42:211
21181992419,3cyclictest90-1pr/ttyS008:42:531
21181992419,3cyclictest90-1pr/ttyS008:42:531
21181992419,3cyclictest21178-21cyclictest09:22:571
21181992419,3cyclictest21178-21cyclictest09:22:571
21181992419,3cyclictest21178-21cyclictest09:22:571
21181992418,4cyclictest3359-21needreboot09:17:511
21181992418,4cyclictest3359-21needreboot09:17:511
21181992417,5cyclictest7906-21sshd09:29:501
21181992414,8cyclictest14678-21systemd-journal07:27:341
21181992414,8cyclictest14678-21systemd-journal07:27:341
21181992319,2cyclictest0-21swapper/111:12:501
21181992319,2cyclictest0-21swapper/111:12:501
21181992319,2cyclictest0-21swapper/109:42:501
21181992319,2cyclictest0-21swapper/107:27:471
21181992319,2cyclictest0-21swapper/107:27:471
21181992318,3cyclictest5501-21cut07:57:491
21181992318,3cyclictest5501-21cut07:57:491
21181992318,3cyclictest0-21swapper/112:12:591
21181992318,3cyclictest0-21swapper/112:12:591
21181992318,3cyclictest0-21swapper/111:17:521
21181992318,3cyclictest0-21swapper/111:17:521
21181992317,4cyclictest0-21swapper/108:57:491
21181992317,4cyclictest0-21swapper/108:57:491
2118199231,4cyclictest0-21swapper/111:04:221
21181992310,4cyclictest181rcu_preempt08:07:451
21181992310,4cyclictest181rcu_preempt08:07:451
21181992310,4cyclictest181rcu_preempt08:07:451
21181992218,2cyclictest0-21swapper/109:13:501
21181992218,2cyclictest0-21swapper/109:13:501
21181992217,3cyclictest0-21swapper/112:02:461
21181992217,3cyclictest0-21swapper/112:02:461
21181992217,3cyclictest0-21swapper/107:52:541
21181992216,5cyclictest13027-21sshd11:10:501
21181992216,5cyclictest13027-21sshd11:10:501
21181992216,4cyclictest23369-21cpu10:12:441
21181992216,4cyclictest23369-21cpu10:12:441
21181992216,4cyclictest14372-21gltestperf09:47:471
21181992216,4cyclictest14372-21gltestperf09:47:471
21181992213,3cyclictest181rcu_preempt11:25:461
21181992213,3cyclictest181rcu_preempt11:25:461
21181992212,8cyclictest16466-21cat09:52:501
21181992212,8cyclictest16466-21cat09:52:501
21181992212,8cyclictest16466-21cat09:52:501
113682220,2chrt0-21swapper/309:37:573
113682220,2chrt0-21swapper/309:37:573
113682220,2chrt0-21swapper/309:37:573
2118599211,11cyclictest0-21swapper/208:02:502
2118599211,11cyclictest0-21swapper/208:02:502
2118599211,11cyclictest0-21swapper/208:02:502
21181992116,3cyclictest0-21swapper/110:07:491
21181992116,3cyclictest0-21swapper/110:07:491
21181992115,3cyclictest0-21swapper/111:37:441
21181992115,3cyclictest0-21swapper/111:37:441
21181992114,5cyclictest11701-21ntp_states12:32:531
21181992114,5cyclictest11701-21ntp_states12:32:531
21181992114,5cyclictest11701-21ntp_states12:32:531
2118199211,13cyclictest29273-21grep10:27:481
2118199211,13cyclictest29273-21grep10:27:481
2118199211,12cyclictest7159-21/usr/sbin/munin12:22:581
2118199211,12cyclictest7159-21/usr/sbin/munin12:22:581
2118599205,12cyclictest5633-21chrt09:22:562
2118599205,12cyclictest5633-21chrt09:22:562
2118599205,12cyclictest5633-21chrt09:22:562
21185992011,6cyclictest21275-21taskset10:07:342
21185992011,6cyclictest21275-21taskset10:07:342
21181992015,3cyclictest0-21swapper/110:37:591
21181992015,3cyclictest0-21swapper/110:37:591
21181992015,3cyclictest0-21swapper/108:27:491
21181992015,3cyclictest0-21swapper/108:27:491
52722190,3sleep20-21swapper/210:47:582
52722190,3sleep20-21swapper/210:47:582
21185991914,3cyclictest152752chrt11:17:452
21185991914,3cyclictest152752chrt11:17:452
21181991912,5cyclictest635-21switchtime12:02:581
21181991912,5cyclictest635-21switchtime12:02:581
21181991912,5cyclictest635-21switchtime12:02:581
21181991910,7cyclictest24173-21fschecks_time08:47:471
21181991910,7cyclictest24173-21fschecks_time08:47:471
2119699181,12cyclictest17660-21chrt09:57:433
2119699181,12cyclictest17660-21chrt09:57:433
2119699181,12cyclictest17660-21chrt09:57:433
2119699181,12cyclictest13023-21taskset12:37:463
2119699181,12cyclictest13023-21taskset12:37:463
2119699181,11cyclictest0-21swapper/309:12:443
2119699181,11cyclictest0-21swapper/309:12:443
2118599181,13cyclictest26381-21taskset10:17:562
2118599181,12cyclictest3906-21taskset07:52:522
2118599181,12cyclictest3906-21taskset07:52:522
2118599181,12cyclictest3906-21taskset07:52:522
2118599181,11cyclictest27812-21chrt08:57:482
2118599181,11cyclictest27812-21chrt08:57:482
2118599181,10cyclictest0-21swapper/207:37:452
2118599181,10cyclictest0-21swapper/207:37:452
2119699171,11cyclictest6492-21taskset10:52:503
2119699171,11cyclictest6492-21taskset10:52:503
2119699171,11cyclictest27402-21chrt07:27:563
2119699171,11cyclictest27402-21chrt07:27:563
2118599171,11cyclictest3390-21chrt12:12:452
2118599171,11cyclictest3390-21chrt12:12:452
2118599171,11cyclictest3194-21taskset10:42:562
2118599171,11cyclictest3194-21taskset10:42:562
2118599171,11cyclictest26329-21chrt08:52:492
2118599171,11cyclictest26329-21chrt08:52:492
2118599171,10cyclictest32141-21chrt09:07:532
2118599171,10cyclictest32141-21chrt09:07:532
111972170,3sleep20-21swapper/212:32:472
111972170,3sleep20-21swapper/212:32:472
111972170,3sleep20-21swapper/212:32:472
82632161,10sleep30-21swapper/309:32:433
82632161,10sleep30-21swapper/309:32:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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