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2026-09-14 - 02:28

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 792 highest latencies:
System rackbslot5s.osadl.org (updated Sun Sep 13, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4095825995845,5cyclictest4141630-21kworker/u8:0+events_unbound09:20:112
4095824995446,5cyclictest4176048-21unixbench_multi10:55:241
4095824994535,7cyclictest231ktimers/109:20:111
4095825994435,6cyclictest208-21systemd-logind11:15:302
4095825994335,5cyclictest4131552-21munin-plugin-st08:50:002
4095825994335,5cyclictest4131552-21munin-plugin-st08:50:002
4095824994335,6cyclictest4164275-21kworker/u8:0+events_unbound10:40:231
4095823994334,4cyclictest4128134-21munin-plugin-st08:40:000
4095824994234,5cyclictest4107243-21grep07:40:021
4095825994134,4cyclictest4174617-21munin-plugin-st10:55:012
4095825994132,6cyclictest4163930-21unixbench_multi10:20:262
4095825994130,7cyclictest16668-21sendmail12:39:592
409582499409,4cyclictest131rcu_preempt10:30:131
4095823994030,6cyclictest4107253-21sendmail07:40:010
4095825993932,5cyclictest4118124-21kworker/u8:3+events_unbound08:25:082
4095825993927,8cyclictest4101233-21grep07:20:272
4095825993922,5cyclictest4155432-21kworker/u8:1+events_unbound10:10:202
4095825993922,5cyclictest4155432-21kworker/u8:1+events_unbound10:10:202
4095824993919,6cyclictest16298-21kworker/u8:2+events_unbound12:38:291
4095830993829,5cyclictest0-21swapper/307:40:163
4095825993831,4cyclictest4179943-21idleruntime-cro11:10:002
4095825993831,4cyclictest4179943-21idleruntime-cro11:10:002
4095824993831,4cyclictest4141992-21cron09:20:001
4095824993831,4cyclictest0-21swapper/110:30:021
4095824993830,5cyclictest4110188-21grep07:45:251
4095824993824,10cyclictest231ktimers/107:50:121
4095824993820,6cyclictest4115621-21kworker/u8:0+events_unbound08:01:371
4095824993820,6cyclictest4115621-21kworker/u8:0+events_unbound08:01:371
4095830993729,4cyclictest0-21swapper/307:55:003
4095830993726,8cyclictest4123021-21sh08:25:003
4095830993722,11cyclictest391ktimers/308:55:133
4095825993727,6cyclictest0-21swapper/210:00:012
4095825993726,7cyclictest0-21swapper/211:55:002
4095825993725,8cyclictest0-21swapper/208:25:002
4095824993731,4cyclictest4185065-21idleruntime-cro11:24:591
4095824993730,5cyclictest4132867-21kworker/u8:0+events_unbound08:55:091
4095830993628,4cyclictest0-21swapper/307:30:143
4095830993628,4cyclictest0-21swapper/307:20:193
4095825993628,4cyclictest0-21swapper/211:45:392
4095825993626,6cyclictest0-21swapper/209:40:002
4095825993625,7cyclictest0-21swapper/212:25:482
4095825993625,7cyclictest0-21swapper/212:25:482
4095824993629,5cyclictest4139698-21kworker/u8:2+events_unbound09:25:121
4095824993626,7cyclictest4187984-21grep11:30:241
4095823993626,6cyclictest0-21swapper/008:55:260
4095823993625,8cyclictest121ktimers/008:40:140
4095830993528,4cyclictest0-21swapper/309:55:273
4095830993525,5cyclictest0-21swapper/310:35:223
4095825993526,5cyclictest0-21swapper/210:30:162
4095825993522,7cyclictest131rcu_preempt08:00:252
4095825993522,7cyclictest131rcu_preempt08:00:252
4095824993529,4cyclictest4098975-21kworker/u8:2+events_unbound07:30:041
4095824993528,4cyclictest0-21swapper/110:05:161
4095824993527,4cyclictest0-21swapper/111:05:151
4095824993527,4cyclictest0-21swapper/111:05:151
409582499351,13cyclictest24-21ksoftirqd/112:20:121
4095830993426,4cyclictest0-21swapper/308:15:013
4095825993425,6cyclictest4144964-21grep09:25:262
4095825993424,6cyclictest0-21swapper/211:40:262
4095824993423,8cyclictest4119598-21sh08:15:001
4095824993418,12cyclictest231ktimers/109:00:121
409582399349,14cyclictest131rcu_preempt07:50:140
4095823993425,3cyclictest0-21swapper/008:30:220
4095830993327,3cyclictest0-21swapper/308:00:003
4095830993327,3cyclictest0-21swapper/308:00:003
4095830993321,8cyclictest391ktimers/311:30:113
4095830993310,11cyclictest131rcu_preempt11:55:123
409582499336,5cyclictest131rcu_preempt07:20:141
4095824993326,4cyclictest0-21swapper/109:15:021
4095824993325,4cyclictest0-21swapper/110:45:261
4095824993322,8cyclictest4162676-21sendmail10:20:001
4095824993315,4cyclictest131rcu_preempt09:30:151
4095823993325,5cyclictest4167675-21kworker/u8:3+events_unbound10:50:250
4095823993322,9cyclictest121ktimers/011:05:120
4095823993322,9cyclictest121ktimers/011:05:120
409582399331,3cyclictest131rcu_preempt11:35:120
4095830993226,4cyclictest4145170-21kworker/u8:3+events_unbound09:35:123
4095830993225,4cyclictest0-21swapper/309:15:253
4095830993222,6cyclictest0-21swapper/311:20:003
4095825993226,4cyclictest4150238-21kworker/u8:2+events_unbound09:45:012
4095825993223,6cyclictest0-21swapper/211:55:262
409582499325,13cyclictest24-21ksoftirqd/108:49:271
409582499325,13cyclictest24-21ksoftirqd/108:49:261
4095824993226,4cyclictest4174568-21kworker/u8:1+events_unbound11:35:181
4095824993226,4cyclictest3956769-21kworker/u8:2+events_unbound07:10:041
4095824993224,4cyclictest0-21swapper/109:50:291
4095824993214,6cyclictest4107094-21kworker/u8:0+events_unbound07:43:071
4095823993225,3cyclictest0-21swapper/007:25:000
4095823993224,4cyclictest0-21swapper/010:25:250
4095823993224,4cyclictest0-21swapper/009:55:260
4095823993224,4cyclictest0-21swapper/009:20:010
4095830993123,4cyclictest0-21swapper/312:00:263
4095830993123,4cyclictest0-21swapper/310:20:013
4095825993124,3cyclictest0-21swapper/209:00:172
4095825993123,4cyclictest0-21swapper/212:00:262
4095825993122,6cyclictest0-21swapper/208:10:022
4095825993121,6cyclictest0-21swapper/207:35:002
4095825993120,6cyclictest0-21swapper/208:15:262
4095825993116,5cyclictest4174568-21kworker/u8:1+events_unbound11:25:242
409582599310,6cyclictest131rcu_preempt09:15:122
4095824993120,7cyclictest0-21swapper/107:15:311
4095824993112,5cyclictest131rcu_preempt09:45:151
4095823993123,4cyclictest0-21swapper/007:10:260
4095823993118,9cyclictest204-21dbus-daemon10:30:210
4095830993022,5cyclictest4513-21kworker/u8:2+events_unbound12:05:453
4095830993022,4cyclictest0-21swapper/307:25:043
4095830993022,4cyclictest0-21swapper/307:25:043
4095830993021,5cyclictest0-21swapper/310:10:213
4095830993021,5cyclictest0-21swapper/310:10:203
4095830993019,6cyclictest0-21swapper/308:40:003
4095830993017,10cyclictest4106806-21awk07:35:263
4095825993024,3cyclictest0-21swapper/207:15:012
4095825993022,5cyclictest0-21swapper/212:34:592
4095825993020,7cyclictest4138392-21ssh09:10:012
4095824993023,4cyclictest0-21swapper/108:10:001
4095824993022,4cyclictest0-21swapper/111:30:011
4095823993021,6cyclictest4109354-21fschecks_count07:45:160
4095823993021,4cyclictest0-21swapper/011:50:390
4095823993019,7cyclictest4133236-21cron08:55:000
4095823993019,7cyclictest11064-21grep12:20:240
4095830992921,5cyclictest0-21swapper/312:10:263
4095830992919,6cyclictest4099591-21grep07:15:313
4095830992918,7cyclictest4151398-21ps09:45:253
409582599294,4cyclictest131rcu_preempt10:40:142
4095825992922,4cyclictest0-21swapper/211:35:162
4095825992921,4cyclictest0-21swapper/210:25:262
4095825992921,4cyclictest0-21swapper/207:15:032
4095825992920,6cyclictest4172132-21fgrep10:45:252
4095825992920,5cyclictest0-21swapper/210:40:002
4095825992919,7cyclictest1-21systemd10:05:152
4095825992918,7cyclictest4113865-21grep07:55:232
4095825992918,7cyclictest4113865-21grep07:55:232
4095824992922,4cyclictest231ktimers/112:05:111
4095824992922,4cyclictest0-21swapper/107:55:241
4095824992922,4cyclictest0-21swapper/107:55:241
4095824992919,8cyclictest4102721-21ntpq07:25:211
4095824992919,8cyclictest4102721-21ntpq07:25:211
4095824992919,6cyclictest0-21swapper/112:30:001
4095824992919,6cyclictest0-21swapper/112:29:591
4095824992916,9cyclictest0-21swapper/108:35:261
4095823992921,4cyclictest0-21swapper/008:15:200
4095823992921,4cyclictest0-21swapper/007:15:040
4095823992915,9cyclictest204-21dbus-daemon08:10:050
4095830992820,4cyclictest0-21swapper/312:15:463
4095830992820,4cyclictest0-21swapper/309:10:253
4095825992822,4cyclictest6237-21kworker/u8:0+events_unbound12:08:412
4095825992822,4cyclictest4513-21kworker/u8:2+events_unbound12:15:492
4095825992821,5cyclictest4174568-21kworker/u8:1+events_unbound11:10:292
4095825992821,5cyclictest4098975-21kworker/u8:2+events_unbound07:25:052
4095825992821,5cyclictest4098975-21kworker/u8:2+events_unbound07:25:042
4095825992821,4cyclictest0-21swapper/211:30:242
4095825992820,4cyclictest0-21swapper/208:35:272
409582499288,7cyclictest131rcu_preempt12:00:121
4095824992820,6cyclictest4193581-21cron11:50:001
4095824992819,7cyclictest231ktimers/111:55:141
4095824992816,8cyclictest204-21dbus-daemon10:50:241
409582499281,13cyclictest0-21swapper/108:51:441
4095823992823,3cyclictest4176538-21sendmail11:00:000
4095823992821,4cyclictest4153924-21sh09:55:020
4095823992821,3cyclictest0-21swapper/009:25:010
4095830992721,3cyclictest0-21swapper/309:50:273
4095830992720,4cyclictest0-21swapper/307:15:013
4095830992719,5cyclictest1-21systemd10:45:233
4095830992717,7cyclictest0-21swapper/310:55:003
4095830992717,6cyclictest14517-21head12:30:293
4095825992719,5cyclictest0-21swapper/212:20:152
4095825992719,5cyclictest0-21swapper/210:55:232
4095825992719,4cyclictest0-21swapper/211:00:262
409582599271,5cyclictest131rcu_preempt09:50:172
4095824992721,4cyclictest4128035-21kworker/u8:1+events_unbound08:42:421
4095824992720,4cyclictest4155651-21sendmail10:00:011
4095824992718,4cyclictest0-21swapper/108:30:001
4095824992712,10cyclictest7717-21unixbench_singl12:10:261
4095823992719,4cyclictest0-21swapper/007:30:040
4095823992719,3cyclictest0-21swapper/012:15:240
4095823992718,4cyclictest0-21swapper/011:20:250
4095830992619,4cyclictest4163130-21cut10:20:163
4095830992618,5cyclictest884-21head11:50:273
4095830992618,4cyclictest0-21swapper/311:45:243
4095830992618,4cyclictest0-21swapper/309:25:263
4095830992617,5cyclictest4124716-21cron08:30:013
4095830992615,8cyclictest391ktimers/311:20:123
4095825992619,5cyclictest4141630-21kworker/u8:0+events_unbound09:45:472
4095825992619,5cyclictest4126284-21kworker/u8:2+events_unbound08:40:072
4095825992615,8cyclictest4132225-21meminfo08:50:192
4095824992620,4cyclictest4190527-21kworker/u8:0+events_unbound11:50:411
4095824992620,4cyclictest4155432-21kworker/u8:1+events_unbound10:11:221
4095824992620,4cyclictest4155432-21kworker/u8:1+events_unbound10:11:221
4095824992620,3cyclictest0-21swapper/108:25:011
4095824992619,4cyclictest0-21swapper/110:40:001
4095824992618,5cyclictest4150533-21idleruntime-cro09:45:011
4095824992617,5cyclictest4181649-21munin-plugin-st11:15:001
4095824992614,8cyclictest0-21swapper/109:05:261
409582499261,14cyclictest0-21swapper/108:15:091
4095823992618,5cyclictest13550irq/42-30be0000.ethernet10:00:090
4095823992618,4cyclictest0-21swapper/011:55:260
4095823992618,4cyclictest0-21swapper/007:55:050
4095823992618,4cyclictest0-21swapper/007:55:050
4095830992519,3cyclictest0-21swapper/310:35:003
4095830992517,5cyclictest4141630-21kworker/u8:0+events_unbound09:20:223
4095830992517,5cyclictest0-21swapper/310:25:193
4095825992518,5cyclictest4110605-21kworker/u8:1+events_unbound08:31:372
4095825992517,5cyclictest0-21swapper/209:30:302
4095825992516,6cyclictest4156976-21ls10:00:242
4095825992516,6cyclictest0-21swapper/212:10:272
4095825992516,5cyclictest0-21swapper/209:10:242
4095824992520,3cyclictest4141630-21kworker/u8:0+events_unbound09:35:101
4095824992518,5cyclictest7987-21kworker/u8:1+events_unbound12:34:351
4095824992517,5cyclictest0-21swapper/108:30:251
4095824992515,7cyclictest0-21swapper/111:15:201
4095823992518,3cyclictest0-21swapper/011:35:000
4095823992517,5cyclictest0-21swapper/010:15:240
4095823992516,5cyclictest0-21swapper/008:05:280
4095823992515,7cyclictest4169900-21grep10:40:180
4095823992515,7cyclictest4144247-21cat09:25:180
409582399251,20cyclictest0-21swapper/011:49:350
4095830992418,3cyclictest0-21swapper/309:30:283
4095830992418,3cyclictest0-21swapper/308:05:243
4095830992417,4cyclictest4121308-21kthreadd08:20:003
4095825992417,3cyclictest0-21swapper/211:20:172
4095824992418,4cyclictest4164275-21kworker/u8:0+events_unbound10:23:471
4095824992417,5cyclictest4176505-21kworker/u8:0+events_unbound11:01:511
4095824992415,5cyclictest0-21swapper/110:00:141
4095823992418,3cyclictest13850irq/36-mmc110:40:010
4095823992418,3cyclictest0-21swapper/009:05:260
4095823992418,3cyclictest0-21swapper/008:00:200
4095823992418,3cyclictest0-21swapper/008:00:190
4095823992416,5cyclictest0-21swapper/011:15:250
409582399241,19cyclictest0-21swapper/012:38:160
409582399241,19cyclictest0-21swapper/011:29:140
409582399241,19cyclictest0-21swapper/009:32:400
409582399241,19cyclictest0-21swapper/009:10:040
409582399241,19cyclictest0-21swapper/008:28:090
409582399241,19cyclictest0-21swapper/007:41:160
409582399240,20cyclictest0-21swapper/012:30:090
409582399240,20cyclictest0-21swapper/011:43:150
4095830992316,5cyclictest4174568-21kworker/u8:1+events_unbound11:37:413
4095830992315,5cyclictest0-21swapper/311:05:163
4095830992315,5cyclictest0-21swapper/311:05:153
4095830992314,7cyclictest4159269-21cut10:10:003
409583099231,19cyclictest4132085-21cat08:50:183
409582599237,9cyclictest131rcu_preempt07:38:452
4095825992316,5cyclictest4107094-21kworker/u8:0+events_unbound07:49:022
409582499239,3cyclictest0-21swapper/112:15:391
409582399233,3cyclictest0-21swapper/009:00:210
4095823992317,3cyclictest0-21swapper/009:45:280
4095823992316,3cyclictest0-21swapper/010:21:300
4095823992316,3cyclictest0-21swapper/008:24:560
4095823992315,5cyclictest0-21swapper/011:10:280
4095823992314,6cyclictest4159911-21grep10:10:230
4095823992314,6cyclictest4159911-21grep10:10:230
4095823992314,5cyclictest0-21swapper/010:45:260
409582399231,20cyclictest0-21swapper/012:14:140
409582399231,20cyclictest0-21swapper/008:48:440
409582399231,20cyclictest0-21swapper/008:48:430
409582399231,18cyclictest0-21swapper/012:02:130
409582399230,19cyclictest0-21swapper/009:44:560
409582399230,19cyclictest0-21swapper/009:35:360
4095830992216,3cyclictest0-21swapper/311:00:153
4095830992216,3cyclictest0-21swapper/310:00:163
4095830992216,3cyclictest0-21swapper/307:45:223
4095830992215,4cyclictest4176030-21sshd10:55:233
4095830992215,4cyclictest0-21swapper/309:40:253
409583099221,11cyclictest0-21swapper/308:01:123
409583099221,11cyclictest0-21swapper/308:01:123
4095825992216,3cyclictest4161350-21fschecks_count10:15:142
4095824992217,3cyclictest0-21swapper/111:40:131
409582399228,10cyclictest204-21dbus-daemon07:25:040
409582399228,10cyclictest204-21dbus-daemon07:25:040
4095823992216,3cyclictest6611-21latency_hist12:10:010
4095823992215,4cyclictest121ktimers/011:00:030
409583099212,3cyclictest131rcu_preempt11:10:173
4095830992115,4cyclictest4174568-21kworker/u8:1+events_unbound11:25:223
4095830992114,4cyclictest391ktimers/308:45:323
4095830992114,4cyclictest391ktimers/308:45:323
4095830992113,5cyclictest0-21swapper/308:45:003
4095830992112,4cyclictest0-21swapper/309:05:083
4095830992110,8cyclictest15413-21fw_packets12:35:163
409582599211,12cyclictest0-21swapper/208:58:382
4095830991913,4cyclictest391ktimers/309:00:153
409583099181,12cyclictest4169953-21fschecks_time10:40:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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