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2026-08-31 - 12:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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 highest latencies:
System rackbslot5s.osadl.org (updated Mon Aug 31, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1650353995240,9cyclictest311ktimers/223:40:122
1650353995039,7cyclictest311ktimers/223:45:142
1650345994840,4cyclictest1693940-21cron21:15:000
1650350994739,5cyclictest1688829-21cron21:00:011
1650350994635,8cyclictest231ktimers/123:50:121
1650345994636,6cyclictest1665804-21grep19:50:240
1650353994535,7cyclictest1653811-21grep19:15:262
1650345994518,4cyclictest0-21swapper/023:55:270
1650358994436,6cyclictest1712710-21cron22:10:013
1650358994432,8cyclictest1762175-21grep00:30:293
1650353994435,6cyclictest1709317-21sendmail22:00:002
1650353994432,9cyclictest1736817-21sendmail23:20:002
1650353994334,7cyclictest311ktimers/223:50:102
1650345994336,5cyclictest1671083-21kworker/u8:0+events_unbound20:11:270
1650358994029,7cyclictest391ktimers/319:30:123
1650345993932,4cyclictest1716128-21cron22:20:010
1650345993932,4cyclictest1716128-21cron22:20:000
1650345993932,4cyclictest1650335-21cyclictest22:00:010
1650358993830,4cyclictest0-21swapper/319:40:003
1650353993829,5cyclictest0-21swapper/219:51:252
1650350993830,5cyclictest1722549-21unixbench_singl22:35:341
1650350993826,8cyclictest231ktimers/121:10:121
1650350993826,7cyclictest0-21swapper/120:25:251
1650353993726,3cyclictest131rcu_preempt20:43:222
1650353993726,3cyclictest131rcu_preempt20:43:222
1650358993627,7cyclictest391ktimers/320:20:133
165035399364,10cyclictest1740009-21sed23:25:252
1650353993627,5cyclictest0-21swapper/200:30:282
1650353993625,8cyclictest311ktimers/220:15:132
1650345993627,5cyclictest1729523-21grep22:55:270
1650345993620,6cyclictest1693867-21kworker/u8:0+events_unbound21:32:200
1650358993528,4cyclictest1673425-21fschecks_count20:15:153
1650353993527,5cyclictest0-21swapper/219:35:272
1650350993528,4cyclictest1726365-21sh22:50:001
1650350993523,7cyclictest0-21swapper/123:30:001
165034599352,8cyclictest11-21ksoftirqd/019:55:130
165034599352,8cyclictest11-21ksoftirqd/019:45:130
165034599352,8cyclictest11-21ksoftirqd/019:45:120
1650345993528,4cyclictest1759201-21sh00:25:000
1650345993525,6cyclictest1674752-21sh20:20:000
1650345993524,8cyclictest1747637-21tune2fs23:50:140
1650358993427,4cyclictest1707991-21cut21:55:153
1650353993425,5cyclictest0-21swapper/200:05:002
1650353993424,4cyclictest131rcu_preempt23:06:222
1650353993422,9cyclictest311ktimers/219:20:142
1650353993412,5cyclictest301rcuc/221:10:462
1650350993426,5cyclictest0-21swapper/120:00:161
1650350993423,7cyclictest0-21swapper/121:40:251
1650350993421,8cyclictest0-21swapper/123:00:261
1650345993424,6cyclictest1738311-21grep23:20:260
1650345993424,6cyclictest1738311-21grep23:20:260
1650345993424,6cyclictest0-21swapper/023:29:590
1650345993422,4cyclictest1657418-21kworker/u8:0+events_unbound19:34:420
1650358993326,4cyclictest1748951-21cron23:55:003
1650358993325,4cyclictest0-21swapper/323:10:263
1650353993327,4cyclictest1719246-21kworker/u8:2+events_unbound22:26:412
1650353993322,8cyclictest311ktimers/200:05:132
1650350993324,6cyclictest0-21swapper/120:35:001
1650350993324,6cyclictest0-21swapper/120:35:001
1650350993323,6cyclictest0-21swapper/123:20:001
1650350993323,6cyclictest0-21swapper/121:45:251
1650345993325,6cyclictest151rcuc/020:20:130
1650345993325,6cyclictest151rcuc/020:05:130
1650345993324,5cyclictest0-21swapper/023:20:000
1650345993324,4cyclictest0-21swapper/000:30:280
1650345993323,6cyclictest1719122-21grep22:25:260
1650345993319,6cyclictest1733380-21kworker/u8:1+events_unbound23:12:080
1650358993225,4cyclictest0-21swapper/322:40:143
1650358993224,4cyclictest0-21swapper/319:10:253
1650358993222,6cyclictest1678762-21fschecks_count20:30:183
1650358993222,6cyclictest1678762-21fschecks_count20:30:173
1650358993222,6cyclictest0-21swapper/323:20:023
1650358993221,7cyclictest0-21swapper/319:30:013
165035399324,11cyclictest32-21ksoftirqd/222:20:162
1650353993222,6cyclictest0-21swapper/219:55:272
1650353993213,3cyclictest131rcu_preempt20:37:372
1650353993213,3cyclictest131rcu_preempt20:37:362
1650353993210,13cyclictest32-21ksoftirqd/220:00:252
1650350993225,5cyclictest1719246-21kworker/u8:2+events_unbound22:31:561
1650350993221,8cyclictest1749345-21fschecks_count23:55:161
1650345993226,4cyclictest1710688-21kworker/u8:1+events_unbound22:06:490
1650345993226,3cyclictest0-21swapper/020:40:000
1650345993226,3cyclictest0-21swapper/020:40:000
1650345993225,5cyclictest1685237-21kworker/u8:2+events_unbound20:50:160
1650345993224,5cyclictest1697374-21cron21:25:000
1650345993222,6cyclictest0-21swapper/022:00:260
1650358993122,4cyclictest0-21swapper/322:55:013
1650358993121,7cyclictest391ktimers/322:25:123
1650358993121,6cyclictest1690967-21fschecks_time21:05:173
165035399318,12cyclictest32-21ksoftirqd/221:45:022
165035399315,6cyclictest32-21ksoftirqd/222:20:002
165035399315,6cyclictest32-21ksoftirqd/222:20:002
165035399315,6cyclictest32-21ksoftirqd/219:25:242
1650353993124,4cyclictest0-21swapper/221:20:272
1650353993123,5cyclictest1705900-21ls21:50:012
1650353993113,10cyclictest1671083-21kworker/u8:0-events_unbound20:10:232
1650353993111,3cyclictest131rcu_preempt22:10:222
1650353993111,3cyclictest131rcu_preempt22:10:212
1650350993121,6cyclictest0-21swapper/121:35:171
1650350993120,7cyclictest0-21swapper/121:00:251
1650350993120,7cyclictest0-21swapper/120:10:251
1650345993123,4cyclictest0-21swapper/000:15:000
1650358993023,4cyclictest0-21swapper/322:30:303
1650358993023,4cyclictest0-21swapper/319:45:263
1650358993023,4cyclictest0-21swapper/319:45:253
1650358993022,4cyclictest0-21swapper/322:15:293
1650358993022,4cyclictest0-21swapper/322:15:283
1650358993020,6cyclictest0-21swapper/323:45:003
165035399307,8cyclictest32-21ksoftirqd/220:25:012
165035399306,6cyclictest32-21ksoftirqd/222:45:002
165035399305,6cyclictest32-21ksoftirqd/223:20:182
165035399305,6cyclictest32-21ksoftirqd/223:20:182
165035399304,13cyclictest32-21ksoftirqd/220:20:172
1650353993022,4cyclictest0-21swapper/200:20:252
1650353993021,4cyclictest131rcu_preempt23:39:592
1650353993021,4cyclictest131rcu_preempt19:34:132
1650353993019,5cyclictest131rcu_preempt00:17:242
1650353993015,9cyclictest131rcu_preempt22:54:002
1650353993014,8cyclictest131rcu_preempt21:26:372
1650353993010,5cyclictest32-21ksoftirqd/221:00:232
1650350993022,4cyclictest0-21swapper/122:20:161
1650350993021,6cyclictest0-21swapper/100:40:001
1650350993019,7cyclictest0-21swapper/120:45:271
1650350993018,5cyclictest1648312-21kworker/u8:1+events_unbound19:53:321
1650350993017,9cyclictest0-21swapper/123:20:171
1650350993017,9cyclictest0-21swapper/123:20:171
1650345993024,4cyclictest1690468-21kworker/u8:3+events_unbound21:46:460
1650345993023,4cyclictest0-21swapper/019:25:160
1650358992923,4cyclictest1740223-21kworker/u8:2+events_unbound23:32:083
1650358992923,3cyclictest0-21swapper/319:55:273
1650358992922,3cyclictest0-21swapper/320:10:153
1650358992921,6cyclictest1758965-21kworker/u8:0+events_unbound00:23:433
1650358992920,6cyclictest391ktimers/321:40:123
1650358992920,6cyclictest1653875-21grep19:15:263
165035399299,5cyclictest32-21ksoftirqd/222:55:202
165035399294,9cyclictest32-21ksoftirqd/221:50:252
165035399294,5cyclictest301rcuc/222:05:262
165035399293,7cyclictest32-21ksoftirqd/223:00:222
1650353992921,6cyclictest1701211-21fschecks_time21:35:172
1650353992919,7cyclictest311ktimers/221:15:262
1650353992918,8cyclictest311ktimers/222:30:322
1650353992913,9cyclictest0-21swapper/200:25:592
1650353992911,10cyclictest131rcu_preempt21:30:152
1650353992911,10cyclictest131rcu_preempt20:55:212
1650350992922,4cyclictest0-21swapper/119:40:261
1650350992922,4cyclictest0-21swapper/119:40:251
1650350992920,5cyclictest0-21swapper/122:05:261
1650350992917,9cyclictest1667510-21grep19:55:281
1650345992922,3cyclictest0-21swapper/020:25:230
1650345992919,7cyclictest1732562-21/usr/sbin/munin23:05:220
1650358992821,5cyclictest1720980-21kworker/u8:1+events_unbound22:36:563
1650358992820,4cyclictest0-21swapper/323:25:253
1650358992818,7cyclictest0-21swapper/321:40:013
165035399289,5cyclictest131rcu_preempt22:36:362
165035399285,7cyclictest32-21ksoftirqd/219:10:172
165035399285,6cyclictest32-21ksoftirqd/223:55:162
1650353992822,4cyclictest311ktimers/222:00:122
1650353992819,5cyclictest0-21swapper/219:40:162
1650353992819,5cyclictest0-21swapper/219:40:162
1650353992819,4cyclictest131rcu_preempt19:45:362
1650353992819,4cyclictest131rcu_preempt19:45:352
1650353992818,7cyclictest311ktimers/223:30:172
165035399281,7cyclictest32-21ksoftirqd/220:45:222
1650353992817,5cyclictest1720980-21kworker/u8:1+events_unbound22:45:422
1650353992813,9cyclictest131rcu_preempt20:33:072
1650353992813,9cyclictest131rcu_preempt20:33:062
165035399280,9cyclictest32-21ksoftirqd/223:10:212
1650350992818,6cyclictest0-21swapper/119:10:261
1650350992818,6cyclictest0-21swapper/100:00:291
1650345992822,4cyclictest1651816-21kworker/u8:0+events_unbound19:15:040
1650345992821,5cyclictest1752005-21kworker/u8:2+events_unbound00:05:240
1650345992816,8cyclictest0-21swapper/000:25:160
1650345992815,5cyclictest1679764-21kworker/u8:3+events_unbound20:41:450
1650345992815,5cyclictest1679764-21kworker/u8:3+events_unbound20:41:450
1650345992811,14cyclictest1727162-21kernelversion22:50:180
1650358992721,4cyclictest1690468-21kworker/u8:3+events_unbound21:16:383
1650358992721,3cyclictest0-21swapper/322:55:243
1650358992721,3cyclictest0-21swapper/300:10:253
1650358992715,6cyclictest131rcu_preempt21:25:133
1650353992711,5cyclictest131rcu_preempt20:05:192
1650350992721,4cyclictest1648312-21kworker/u8:1+events_unbound19:35:181
1650350992721,3cyclictest0-21swapper/121:50:231
1650350992718,6cyclictest0-21swapper/120:50:161
1650350992718,5cyclictest0-21swapper/119:16:171
1650350992717,6cyclictest0-21swapper/120:15:251
1650345992720,5cyclictest1760798-21kworker/u8:3+events_unbound00:35:220
1650345992720,4cyclictest1661760-21latency19:40:190
1650345992720,4cyclictest1661760-21latency19:40:180
1650345992714,4cyclictest1693867-21kworker/u8:0-events_unbound21:15:210
1650358992620,4cyclictest1650335-21cyclictest00:05:143
1650358992620,3cyclictest0-21swapper/320:40:003
1650358992620,3cyclictest0-21swapper/320:40:003
1650358992618,5cyclictest1648312-21kworker/u8:1+events_unbound20:00:263
1650358992615,7cyclictest1670878-21grep20:05:263
165035399262,5cyclictest32-21ksoftirqd/220:55:022
1650350992619,3cyclictest0-21swapper/100:20:011
1650350992618,5cyclictest0-21swapper/119:25:161
1650345992622,2cyclictest0-21swapper/000:02:480
1650345992619,5cyclictest1755487-21kworker/u8:0+events_unbound00:16:200
1650345992619,3cyclictest0-21swapper/023:40:000
165034599261,8cyclictest11-21ksoftirqd/021:05:130
1650345992618,5cyclictest0-21swapper/020:45:270
1650358992518,4cyclictest145-21jbd2/mmcblk1p2-820:51:063
1650358992517,6cyclictest1710688-21kworker/u8:1+events_unbound22:11:423
1650358992517,6cyclictest1710688-21kworker/u8:1+events_unbound22:11:423
1650358992517,5cyclictest0-21swapper/321:00:003
1650358992516,6cyclictest1725888-21grep22:45:243
1650358992515,8cyclictest1650335-21cyclictest19:20:153
165035399254,5cyclictest32-21ksoftirqd/221:05:262
1650350992517,6cyclictest1761298-21fschecks_count00:30:171
1650350992517,6cyclictest1671083-21kworker/u8:0+events_unbound20:21:311
1650350992517,5cyclictest0-21swapper/121:35:001
1650350992517,5cyclictest0-21swapper/100:20:171
1650350992515,6cyclictest0-21swapper/123:40:151
1650350992514,7cyclictest0-21swapper/122:00:151
1650345992519,4cyclictest1710688-21kworker/u8:1+events_unbound22:10:150
1650345992519,4cyclictest1710688-21kworker/u8:1+events_unbound22:10:150
1650345992518,5cyclictest1690468-21kworker/u8:3+events_unbound21:51:060
1650345992518,4cyclictest1724674-21munin-plugin-st22:45:010
1650345992517,5cyclictest1655589-21unixbench_singl19:20:280
1650345992516,6cyclictest1679623-21grep20:30:270
1650345992516,6cyclictest1679623-21grep20:30:260
1650345992515,8cyclictest11-21ksoftirqd/023:30:160
165034599251,4cyclictest131rcu_preempt21:40:120
165034599251,20cyclictest1725892-21grep22:45:240
1650358992418,3cyclictest0-21swapper/321:00:243
1650358992418,3cyclictest0-21swapper/300:35:183
1650358992417,5cyclictest1712436-21kworker/u8:0+events_unbound22:21:533
1650358992417,4cyclictest1678391-21ls20:30:003
1650358992417,3cyclictest0-21swapper/323:35:213
1650358992415,5cyclictest1738732-21auditctl23:25:003
1650358992415,5cyclictest1738732-21auditctl23:25:003
1650358992414,7cyclictest1732495-21ntp_states23:05:213
1650350992418,4cyclictest1720980-21kworker/u8:1+events_unbound22:41:591
1650350992417,3cyclictest0-21swapper/100:05:261
1650350992416,4cyclictest0-21swapper/119:20:181
1650350992415,5cyclictest0-21swapper/121:30:011
1650350992414,8cyclictest1733715-21awk23:10:131
1650350992414,4cyclictest16812552cat20:35:251
1650350992414,4cyclictest16812552cat20:35:241
165034599248,9cyclictest0-21swapper/023:00:200
165034599247,4cyclictest131rcu_preempt22:20:170
165034599247,10cyclictest11-21ksoftirqd/021:35:160
165034599243,12cyclictest11-21ksoftirqd/019:10:260
1650345992417,3cyclictest0-21swapper/022:38:470
165034599241,12cyclictest0-21swapper/022:30:040
165034599241,12cyclictest0-21swapper/021:29:340
1650358992318,3cyclictest0-21swapper/323:00:253
1650358992317,3cyclictest0-21swapper/300:15:213
1650358992316,4cyclictest0-21swapper/319:50:243
1650358992316,3cyclictest0-21swapper/321:10:143
1650358992315,5cyclictest391ktimers/323:45:123
1650358992312,7cyclictest0-21swapper/300:05:013
1650358992311,6cyclictest1705688-21kworker/u8:2+events_unbound21:49:463
1650350992317,3cyclictest0-21swapper/123:30:241
1650350992316,4cyclictest0-21swapper/123:35:271
1650350992315,5cyclictest231ktimers/121:15:201
1650350992313,6cyclictest0-21swapper/100:30:001
1650350992311,8cyclictest1730008-21basename23:00:001
165034599231,18cyclictest0-21swapper/023:41:050
165034599231,13cyclictest0-21swapper/021:01:430
165034599231,13cyclictest0-21swapper/020:57:100
165034599230,4cyclictest131rcu_preempt20:00:140
1650358992215,3cyclictest0-21swapper/323:55:253
1650358992214,4cyclictest0-21swapper/320:45:173
1650358992212,6cyclictest0-21swapper/319:40:253
1650358992212,6cyclictest0-21swapper/319:40:253
165035099223,4cyclictest1746573-21ls23:45:251
165035099221,7cyclictest1727065-21cat22:50:161
1650350992216,3cyclictest0-21swapper/120:45:001
1650350992216,3cyclictest0-21swapper/120:45:001
1650350992216,3cyclictest0-21swapper/119:45:141
1650350992216,3cyclictest0-21swapper/119:45:141
1650350992215,4cyclictest0-21swapper/122:16:521
1650350992215,4cyclictest0-21swapper/122:16:511
1650350992215,3cyclictest0-21swapper/120:10:011
1650350992214,4cyclictest0-21swapper/119:30:261
1650358992115,4cyclictest1759626-21fschecks_time00:25:163
1650358992115,3cyclictest0-21swapper/321:20:253
1650358992114,5cyclictest1690468-21kworker/u8:3+events_unbound21:51:123
1650358992114,4cyclictest0-21swapper/321:30:303
165035099211,4cyclictest0-21swapper/121:05:181
1650350992114,5cyclictest231ktimers/122:25:181
1650350992112,6cyclictest0-21swapper/122:10:271
1650350992112,6cyclictest0-21swapper/122:10:261
1650358992015,3cyclictest0-21swapper/322:00:143
1650350992014,4cyclictest0-21swapper/121:20:191
1650350992011,6cyclictest1755886-21wc00:15:001
1650350991913,3cyclictest0-21swapper/123:05:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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