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2026-04-17 - 21:49

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 376 highest latencies:
System rackbslot5s.osadl.org (updated Fri Apr 17, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1534552995043,4cyclictest1600527-21apt-get10:20:000
1534565994739,5cyclictest1557685-21idleruntime-cro08:15:003
1534565994630,9cyclictest131rcu_preempt11:45:173
1534556994639,5cyclictest231ktimers/112:00:111
1534556994637,6cyclictest1605392-21grep10:30:261
1534552994635,8cyclictest121ktimers/009:00:120
1534565994531,10cyclictest391ktimers/307:25:143
1534565994531,10cyclictest391ktimers/307:25:143
1534565994337,4cyclictest1600226-21kworker/u8:1+events_unbound10:54:063
1534565994337,4cyclictest1579763-21kworker/u8:0+events_unbound09:38:553
1534556994337,4cyclictest1649137-21munin-plugin-st12:40:001
1534556994132,6cyclictest1620109-21fschecks_count11:15:141
1534556994130,7cyclictest1603750-21unixbench_singl10:25:251
1534552994132,6cyclictest1543386-21grep07:30:250
1534552994132,6cyclictest1543386-21grep07:30:250
1534556994033,4cyclictest1618025-21idleruntime-cro11:10:001
1534556994032,5cyclictest1564710-21apt-key08:35:011
1534552994031,6cyclictest1605394-21unixbench_multi10:30:260
153455299402,5cyclictest131rcu_preempt10:20:110
1534556993932,4cyclictest1614608-21idleruntime-cro11:00:011
153455299396,4cyclictest131rcu_preempt07:45:110
153455299396,4cyclictest131rcu_preempt07:45:100
1534552993929,7cyclictest121ktimers/008:10:120
153455299391,5cyclictest131rcu_preempt10:40:130
1534565993823,5cyclictest131rcu_preempt12:20:233
1534556993831,4cyclictest0-21swapper/108:45:011
153455299385,6cyclictest131rcu_preempt10:00:100
1534552993831,3cyclictest0-21swapper/012:40:000
1534565993729,4cyclictest0-21swapper/308:00:013
1534565993726,6cyclictest0-21swapper/308:30:253
1534561993727,8cyclictest1630169-21sh11:45:012
153455699373,5cyclictest131rcu_preempt10:45:101
1534556993730,4cyclictest1639920-21unixbench_multi12:10:251
1534556993728,6cyclictest0-21swapper/108:15:011
153455699372,6cyclictest131rcu_preempt12:30:131
1534552993727,6cyclictest0-21swapper/009:55:270
153455299372,4cyclictest131rcu_preempt12:15:100
1534565993629,4cyclictest0-21swapper/307:20:003
1534561993628,5cyclictest1545992-21fschecks_time07:40:172
1534561993628,3cyclictest0-21swapper/207:20:012
1534561993626,6cyclictest0-21swapper/211:20:012
1534556993626,7cyclictest1580079-21sendmail09:20:001
1534552993629,5cyclictest1624465-21kworker/u8:1+events_unbound11:45:400
1534552993624,8cyclictest121ktimers/011:15:110
1534565993527,4cyclictest0-21swapper/311:30:003
1534565993524,8cyclictest391ktimers/309:50:123
1534565993524,5cyclictest131rcu_preempt08:17:463
1534565993521,10cyclictest391ktimers/311:10:123
1534565993511,12cyclictest40-21ksoftirqd/308:40:253
1534561993527,4cyclictest0-21swapper/211:00:242
1534556993527,4cyclictest0-21swapper/107:15:161
1534556993526,6cyclictest0-21swapper/107:25:021
1534556993526,4cyclictest0-21swapper/111:39:141
1534552993528,4cyclictest1639918-21grep12:10:240
1534552993528,3cyclictest0-21swapper/007:40:000
1534552993526,4cyclictest0-21swapper/010:49:040
153456599347,6cyclictest40-21ksoftirqd/309:15:213
1534565993423,7cyclictest391ktimers/309:30:193
1534565993419,4cyclictest131rcu_preempt09:44:373
1534565993417,10cyclictest131rcu_preempt07:20:243
1534565993416,9cyclictest131rcu_preempt09:10:563
1534565993416,5cyclictest131rcu_preempt09:55:213
1534565993416,4cyclictest131rcu_preempt11:18:383
1534565993415,5cyclictest131rcu_preempt09:30:003
1534565993414,12cyclictest131rcu_preempt10:50:003
1534565993410,6cyclictest40-21ksoftirqd/307:10:263
1534556993426,4cyclictest0-21swapper/108:55:001
1534565993325,4cyclictest0-21swapper/311:05:153
1534565993318,4cyclictest131rcu_preempt08:53:003
1534565993316,5cyclictest131rcu_preempt11:55:173
1534565993314,4cyclictest131rcu_preempt10:24:553
1534556993325,4cyclictest0-21swapper/110:00:011
1534552993327,3cyclictest1566431-21sendmail08:40:000
1534552993327,3cyclictest0-21swapper/011:00:000
1534552993326,4cyclictest0-21swapper/011:05:250
1534552993325,4cyclictest0-21swapper/009:00:000
1534565993224,5cyclictest1595842-21fschecks_time10:05:163
1534565993221,7cyclictest391ktimers/307:40:253
1534565993218,4cyclictest131rcu_preempt12:36:243
1534565993216,4cyclictest131rcu_preempt10:31:303
1534565993215,4cyclictest131rcu_preempt08:29:113
1534565993214,9cyclictest131rcu_preempt12:08:583
1534565993214,10cyclictest131rcu_preempt10:25:143
1534565993210,11cyclictest40-21ksoftirqd/308:05:233
153456199327,4cyclictest15810062find09:20:242
153456199327,4cyclictest15810062find09:20:242
1534561993225,4cyclictest0-21swapper/209:10:002
1534556993223,5cyclictest0-21swapper/107:35:151
1534552993226,4cyclictest1514563-21kworker/u8:2+events_unbound08:18:380
1534552993221,7cyclictest1638275-21grep12:05:240
153456599318,14cyclictest40-21ksoftirqd/308:45:203
1534565993124,5cyclictest1547108-21kworker/u8:0+events_unbound07:48:423
1534565993124,5cyclictest1547108-21kworker/u8:0+events_unbound07:48:423
1534565993123,6cyclictest1610825-21kworker/u8:3+events_unbound10:59:373
1534565993123,4cyclictest0-21swapper/309:05:003
1534565993122,7cyclictest391ktimers/308:00:123
1534565993121,7cyclictest391ktimers/311:32:023
1534565993121,7cyclictest391ktimers/309:45:163
1534565993121,6cyclictest0-21swapper/311:40:243
1534565993119,4cyclictest131rcu_preempt12:14:123
1534565993117,7cyclictest1612823-21kworker/u8:0+events_unbound11:01:283
1534565993115,4cyclictest131rcu_preempt10:10:213
1534565993113,5cyclictest131rcu_preempt09:05:153
1534565993113,4cyclictest131rcu_preempt08:23:073
1534565993110,4cyclictest131rcu_preempt10:35:113
1534565993110,3cyclictest381rcuc/308:38:083
1534561993123,4cyclictest0-21swapper/211:20:252
1534556993121,6cyclictest0-21swapper/107:45:241
1534556993121,6cyclictest0-21swapper/107:45:241
1534556993119,10cyclictest231ktimers/110:15:111
1534552993125,4cyclictest1595315-21kworker/u8:0+events_unbound10:13:580
1534552993119,9cyclictest121ktimers/007:55:140
153456599308,4cyclictest131rcu_preempt07:35:013
153456599308,4cyclictest131rcu_preempt07:35:013
153456599308,12cyclictest1644368-21df12:25:153
1534565993019,7cyclictest0-21swapper/310:40:253
1534565993017,7cyclictest1569465-21kworker/u8:3+events_unbound08:56:373
1534565993017,5cyclictest1624465-21kworker/u8:1+events_unbound11:50:083
1534565993016,4cyclictest131rcu_preempt12:18:103
1534565993011,5cyclictest131rcu_preempt11:20:203
1534565993011,11cyclictest131rcu_preempt09:20:143
1534565993011,11cyclictest131rcu_preempt09:20:133
1534565993010,10cyclictest40-21ksoftirqd/307:35:193
1534561993023,3cyclictest0-21swapper/208:00:262
1534561993022,4cyclictest0-21swapper/212:20:002
1534556993023,5cyclictest1514563-21kworker/u8:2+events_unbound08:23:391
1534556993021,6cyclictest53-21kcompactd011:55:101
1534556993011,11cyclictest1514563-21kworker/u8:2+events_unbound08:25:131
153455299305,2cyclictest0-21swapper/012:25:130
1534552993022,5cyclictest0-21swapper/011:30:010
1534552993020,6cyclictest0-21swapper/007:15:010
153456599298,13cyclictest40-21ksoftirqd/311:35:263
153456599297,10cyclictest40-21ksoftirqd/310:00:153
1534565992921,4cyclictest0-21swapper/312:00:243
1534565992912,4cyclictest131rcu_preempt10:17:093
1534561992923,3cyclictest0-21swapper/209:55:182
1534561992922,4cyclictest0-21swapper/212:10:252
1534561992922,4cyclictest0-21swapper/207:20:262
1534561992921,4cyclictest0-21swapper/212:30:262
1534561992917,8cyclictest1587472-21irqstats09:40:162
1534556992922,3cyclictest0-21swapper/110:25:011
1534556992920,5cyclictest1541668-21grep07:25:271
1534556992920,5cyclictest1541668-21grep07:25:271
1534552992922,3cyclictest0-21swapper/009:45:250
1534561992821,4cyclictest0-21swapper/210:30:252
1534561992821,3cyclictest0-21swapper/210:35:132
1534561992820,5cyclictest311ktimers/210:55:102
1534561992817,7cyclictest1596688-21grep10:05:252
1534561992816,8cyclictest1566442-21basename08:40:002
1534556992820,5cyclictest1607569-21munin-plugin-st10:40:001
1534556992819,6cyclictest1545991-21fschecks_time07:40:171
153456599275,4cyclictest0-21swapper/307:50:193
1534561992720,4cyclictest0-21swapper/212:05:252
1534561992719,5cyclictest0-21swapper/209:20:002
1534556992721,3cyclictest0-21swapper/111:34:591
1534556992720,4cyclictest0-21swapper/109:45:251
1534556992720,4cyclictest0-21swapper/108:15:261
1534556992719,5cyclictest0-21swapper/108:45:251
1534556992717,7cyclictest1615626-21cat11:00:231
1534556992717,7cyclictest1586895-21sh09:39:591
1534552992721,4cyclictest1619507-21kworker/u8:1+events_unbound11:14:100
1534552992721,4cyclictest1607581-21sendmail10:40:010
1534552992719,4cyclictest0-21swapper/009:15:010
1534552992719,4cyclictest0-21swapper/008:35:010
1534561992620,3cyclictest0-21swapper/210:10:152
1534561992618,5cyclictest0-21swapper/210:45:142
1534561992613,9cyclictest311ktimers/212:20:102
1534561992611,12cyclictest1534545-21cyclictest09:00:132
1534556992619,4cyclictest0-21swapper/110:05:251
1534556992618,5cyclictest0-21swapper/109:05:171
1534556992618,4cyclictest0-21swapper/111:25:171
1534556992618,4cyclictest0-21swapper/110:40:241
153455699261,5cyclictest131rcu_preempt08:05:121
1534552992620,3cyclictest0-21swapper/007:55:010
1534552992618,5cyclictest1538505-21sendmail07:20:000
1534561992520,2cyclictest0-21swapper/208:35:022
1534561992519,3cyclictest0-21swapper/211:40:002
1534561992518,4cyclictest1560646-21tail08:20:252
1534561992517,5cyclictest0-21swapper/210:00:222
1534561992516,6cyclictest1624414-21unixbench_singl11:25:252
1534561992515,7cyclictest1612425-21grep10:50:262
153455699259,10cyclictest1538157-21kworker/u8:0+events_unbound07:34:211
153455699259,10cyclictest1538157-21kworker/u8:0+events_unbound07:34:211
1534556992519,3cyclictest0-21swapper/111:45:231
1534556992518,4cyclictest0-21swapper/107:55:171
1534556992516,6cyclictest0-21swapper/111:20:251
1534556992516,5cyclictest0-21swapper/108:55:171
1534556992515,6cyclictest0-21swapper/107:10:251
153455299252,21cyclictest0-21swapper/011:00:140
1534552992519,3cyclictest0-21swapper/010:05:160
1534552992518,5cyclictest1557385-21kworker/u8:1+events_unbound08:40:200
1534552992518,4cyclictest13850irq/36-mmc112:25:000
1534552992518,3cyclictest0-21swapper/011:50:240
1534552992517,6cyclictest1557385-21kworker/u8:1+events_unbound09:27:120
1534561992417,3cyclictest1585598-21fschecks_time09:35:152
1534561992417,3cyclictest0-21swapper/212:25:252
1534561992415,7cyclictest1514563-21kworker/u8:2+events_unbound07:48:322
1534561992415,7cyclictest1514563-21kworker/u8:2+events_unbound07:48:322
1534561992413,7cyclictest1634789-21grep11:55:232
1534556992418,3cyclictest0-21swapper/107:50:221
1534556992416,5cyclictest0-21swapper/112:25:251
1534556992416,4cyclictest0-21swapper/112:20:241
1534556992415,6cyclictest1638670-21seq12:09:491
1534556992414,7cyclictest1587375-21basename09:40:151
1534556992413,8cyclictest1583337-21seq09:28:241
153455299246,4cyclictest1579763-21kworker/u8:0+events_unbound09:23:510
153455299246,4cyclictest1579763-21kworker/u8:0+events_unbound09:23:510
153455299245,7cyclictest1579763-21kworker/u8:0+events_unbound09:18:500
1534552992418,3cyclictest0-21swapper/008:08:460
1534552992417,5cyclictest121ktimers/011:57:010
1534552992417,4cyclictest13850irq/36-mmc107:30:010
1534552992417,4cyclictest13850irq/36-mmc107:30:010
1534552992417,3cyclictest0-21swapper/011:22:580
1534552992417,3cyclictest0-21swapper/010:27:390
1534552992416,5cyclictest13850irq/36-mmc109:45:010
1534552992414,7cyclictest0-21swapper/011:40:190
1534552992414,5cyclictest1547244-21auditctl07:45:000
153455299241,19cyclictest0-21swapper/011:31:010
153455299240,7cyclictest1612211-21switchtime10:50:240
1534561992318,3cyclictest1534545-21cyclictest08:10:142
1534561992317,3cyclictest0-21swapper/208:45:222
1534561992317,3cyclictest0-21swapper/208:25:232
1534561992316,4cyclictest0-21swapper/208:40:242
1534561992315,5cyclictest53-21kcompactd011:30:032
1534561992315,5cyclictest0-21swapper/212:35:262
1534561992314,6cyclictest0-21swapper/210:15:232
1534556992315,5cyclictest0-21swapper/108:40:011
1534556992314,7cyclictest24-21ksoftirqd/111:10:201
1534556992314,7cyclictest1591532-21sed09:50:241
1534556992314,6cyclictest1612778-21seq10:53:491
1534556992314,6cyclictest1597730-21cat10:10:161
1534556992313,8cyclictest1584129-21sed09:30:191
1534556992313,7cyclictest1554061-21seq08:02:341
153455299236,14cyclictest121ktimers/009:50:200
1534552992316,3cyclictest0-21swapper/007:21:540
1534552992314,6cyclictest204-21dbus-daemon08:48:450
153455299231,3cyclictest1571056-21grep08:50:230
1534552992313,6cyclictest1627994-21grep11:35:250
153455299230,19cyclictest0-21swapper/008:04:300
1534561992216,4cyclictest145-21jbd2/mmcblk1p2-810:20:052
1534561992216,3cyclictest0-21swapper/212:00:202
1534561992216,3cyclictest0-21swapper/211:10:252
1534561992216,3cyclictest0-21swapper/207:30:142
1534561992216,3cyclictest0-21swapper/207:30:142
1534561992214,4cyclictest0-21swapper/207:25:262
1534561992214,4cyclictest0-21swapper/207:25:262
1534556992216,3cyclictest0-21swapper/111:50:161
1534556992216,3cyclictest0-21swapper/111:40:241
153455299221,8cyclictest1646534-21ntp_states12:30:220
1534552992215,3cyclictest0-21swapper/008:22:050
1534552992212,8cyclictest1534545-21cyclictest09:30:130
153455299220,20cyclictest0-21swapper/012:00:130
1534561992115,3cyclictest1591062-21ntpq09:50:202
1534561992115,3cyclictest0-21swapper/210:40:222
1534561992115,3cyclictest0-21swapper/210:25:122
1534561992115,3cyclictest0-21swapper/209:45:162
1534561992115,3cyclictest0-21swapper/208:55:142
1534561992115,3cyclictest0-21swapper/208:05:192
1534561992114,3cyclictest0-21swapper/211:05:142
1534561992113,5cyclictest311ktimers/211:50:012
1534561992112,7cyclictest1552422-21sed08:00:002
1534556992115,3cyclictest0-21swapper/109:20:161
1534556992115,3cyclictest0-21swapper/109:20:161
1534556992115,3cyclictest0-21swapper/109:10:251
1534552992116,3cyclictest13550irq/42-30be0000.ethernet08:25:200
1534552992115,3cyclictest0-21swapper/009:35:250
1534552992114,5cyclictest121ktimers/009:05:190
1534556992015,3cyclictest0-21swapper/109:00:211
1534561991914,2cyclictest0-21swapper/207:10:422
1534561991913,4cyclictest311ktimers/207:35:192
1534561991910,6cyclictest1550752-21wc07:55:002
1534561991813,3cyclictest1578364-21latency_hist09:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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