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2026-05-19 - 00:00

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 all highest latencies:
System rackbslot5s.osadl.org (updated Mon May 18, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205934995743,10cyclictest391ktimers/310:45:133
205926995244,5cyclictest229036-21grep08:15:161
205934995139,9cyclictest391ktimers/308:30:133
205934994818,27cyclictest0-21swapper/307:20:253
205929994840,4cyclictest294081-21munin-plugin-st11:25:002
205934994638,5cyclictest292361-21munin-plugin-st11:20:003
205934994517,3cyclictest0-21swapper/312:05:243
205926994530,11cyclictest231ktimers/109:10:141
205926994428,12cyclictest231ktimers/112:25:121
205934994316,7cyclictest204-21dbus-daemon07:19:403
205934994215,4cyclictest0-21swapper/307:35:173
205934994215,4cyclictest0-21swapper/307:35:163
205929994229,9cyclictest309262-21sshd12:05:482
205926994236,4cyclictest254395-21kworker/u8:3+events_unbound09:30:201
205926994231,7cyclictest0-21swapper/109:40:211
205934994134,4cyclictest256129-21idleruntime-cro09:35:003
205934994131,7cyclictest229910-21grep08:15:253
205934994014,3cyclictest0-21swapper/311:00:273
205929994031,5cyclictest266573-21apt10:05:012
205929994028,8cyclictest240315-21grep08:45:252
205929994019,5cyclictest131rcu_preempt11:40:102
20592999401,8cyclictest0-21swapper/208:05:122
205926994032,5cyclictest226715-21kworker/u8:1+events_unbound08:15:021
205934993931,4cyclictest0-21swapper/311:10:393
205934993929,7cyclictest259302-21grep09:40:253
205934993929,7cyclictest229976-21kworker/u8:3+events_unbound08:45:123
205934993917,3cyclictest0-21swapper/308:10:153
205929993931,4cyclictest0-21swapper/210:15:272
205929993931,4cyclictest0-21swapper/210:15:272
205929993921,5cyclictest131rcu_preempt09:10:212
20592999391,7cyclictest0-21swapper/211:30:122
20592999391,7cyclictest0-21swapper/211:30:112
205926993928,7cyclictest269707-21grep10:10:261
205926993928,7cyclictest269707-21grep10:10:251
205929993821,5cyclictest229976-21kworker/u8:3-events_freezable_power_08:22:102
205926993830,5cyclictest280432-21cron10:45:001
205926993830,4cyclictest0-21swapper/112:10:251
205929993721,5cyclictest131rcu_preempt10:55:012
205929993717,8cyclictest131rcu_preempt07:30:122
20592699373,10cyclictest24-21ksoftirqd/111:20:121
205926993727,6cyclictest0-21swapper/108:40:271
205921993727,6cyclictest310916-21grep12:10:250
20593499369,7cyclictest0-21swapper/309:25:203
205934993624,9cyclictest391ktimers/312:10:123
205929993628,6cyclictest317950-21kworker/u8:3+events_unbound12:38:412
205929993620,7cyclictest131rcu_preempt12:20:152
205929993620,7cyclictest131rcu_preempt12:20:142
205929993612,11cyclictest0-21swapper/209:49:202
205926993625,7cyclictest0-21swapper/109:05:261
205921993628,4cyclictest0-21swapper/008:40:000
205921993627,7cyclictest438-21cron10:50:000
205929993528,4cyclictest0-21swapper/209:10:012
205929993524,7cyclictest243755-21grep08:55:262
205929993523,8cyclictest268045-21grep10:05:262
205929993517,5cyclictest131rcu_preempt09:35:132
205929993517,5cyclictest131rcu_preempt08:35:142
205929993515,4cyclictest131rcu_preempt12:05:012
205929993511,12cyclictest32-21ksoftirqd/210:25:202
205926993525,7cyclictest0-21swapper/112:35:261
205921993528,4cyclictest0-21swapper/007:15:040
205921993524,7cyclictest253945-21grep09:25:240
205929993419,5cyclictest242310-21kworker/u8:0+events_unbound09:21:062
205929993418,4cyclictest131rcu_preempt09:00:132
205926993428,4cyclictest213279-21cron07:30:001
205926993426,4cyclictest0-21swapper/108:55:261
205926993425,6cyclictest0-21swapper/109:25:151
205926993424,6cyclictest0-21swapper/109:45:181
205921993425,6cyclictest234980-21unixbench_multi08:30:260
205929993326,5cyclictest302506-21kworker/u8:0+events_unbound12:34:412
205929993326,5cyclictest302506-21kworker/u8:0+events_unbound11:55:472
205929993326,5cyclictest295384-21kworker/u8:0+events_unbound11:29:402
20592999330,13cyclictest32-21ksoftirqd/211:00:112
205926993327,4cyclictest302506-21kworker/u8:0+events_unbound11:52:401
205926993326,5cyclictest295384-21kworker/u8:0+events_unbound11:30:411
205926993326,5cyclictest295384-21kworker/u8:0+events_unbound11:30:411
205926993325,4cyclictest0-21swapper/112:05:171
205926993324,6cyclictest0-21swapper/108:35:001
205926993324,6cyclictest0-21swapper/108:00:261
205926993323,7cyclictest0-21swapper/110:20:261
205921993326,4cyclictest0-21swapper/009:10:260
205934993224,4cyclictest0-21swapper/310:50:143
205934993219,9cyclictest204-21dbus-daemon09:35:193
205929993223,4cyclictest0-21swapper/212:10:172
205929993217,5cyclictest131rcu_preempt10:48:332
205929993213,10cyclictest32-21ksoftirqd/210:35:262
205929993212,12cyclictest131rcu_preempt11:40:002
205926993226,4cyclictest235379-21kworker/u8:2+events_unbound08:35:121
205926993225,5cyclictest221489-21kworker/u8:0+events_unbound08:20:231
205926993224,5cyclictest0-21swapper/107:20:011
205926993222,6cyclictest0-21swapper/109:20:231
205926993214,7cyclictest131rcu_preempt10:00:131
205921993221,6cyclictest0-21swapper/009:25:010
205934993124,3cyclictest0-21swapper/310:00:003
205934993122,5cyclictest207543-21cron07:15:003
20592999319,11cyclictest0-21swapper/211:50:152
205929993125,4cyclictest311120-21kworker/u8:1+events_unbound12:29:422
205929993122,5cyclictest288955-21munin-run11:10:002
20592699312,6cyclictest24-21ksoftirqd/107:35:141
20592699312,6cyclictest24-21ksoftirqd/107:35:141
205926993120,8cyclictest226918-21sh08:10:001
205921993123,5cyclictest0-21swapper/007:45:000
205921993122,6cyclictest0-21swapper/012:30:240
205921993120,7cyclictest302586-21sh11:50:000
205934993023,3cyclictest306204-21kthreadd12:00:013
205934993019,7cyclictest0-21swapper/308:40:003
205934993018,8cyclictest0-21swapper/310:35:173
20592999307,11cyclictest32-21ksoftirqd/208:10:222
205929993024,4cyclictest280292-21kworker/u8:3+events_unbound11:17:422
205929993024,4cyclictest246122-21kworker/u8:1+events_unbound09:27:432
205929993020,6cyclictest0-21swapper/207:20:002
205929993016,3cyclictest131rcu_preempt11:10:172
205926993023,5cyclictest280292-21kworker/u8:3+events_unbound10:55:361
205926993022,6cyclictest229976-21kworker/u8:3+events_unbound08:50:111
205926993021,5cyclictest0-21swapper/112:15:251
205926993021,5cyclictest0-21swapper/112:15:251
205926993019,7cyclictest0-21swapper/112:30:251
205926993019,7cyclictest0-21swapper/111:10:241
205921993023,3cyclictest0-21swapper/008:25:260
205934992923,3cyclictest319844-21kthreadd12:40:003
205934992922,4cyclictest0-21swapper/311:50:253
205934992921,4cyclictest0-21swapper/307:55:163
20592999298,10cyclictest0-21swapper/210:44:142
20592999296,13cyclictest32-21ksoftirqd/208:15:212
205929992916,5cyclictest131rcu_preempt07:20:172
205929992915,3cyclictest131rcu_preempt09:58:412
205929992915,3cyclictest131rcu_preempt07:35:222
205929992915,3cyclictest131rcu_preempt07:35:212
205929992910,11cyclictest32-21ksoftirqd/209:55:012
205926992918,7cyclictest0-21swapper/111:15:261
205926992910,8cyclictest131rcu_preempt09:55:101
205921992922,4cyclictest0-21swapper/007:50:260
205921992922,3cyclictest0-21swapper/007:30:260
205921992917,9cyclictest261472-21seq09:50:010
205934992821,4cyclictest0-21swapper/310:05:013
205934992820,4cyclictest0-21swapper/308:30:013
20592999289,3cyclictest131rcu_preempt07:52:472
20592999289,3cyclictest0-21swapper/208:54:242
20592999289,11cyclictest32-21ksoftirqd/210:25:012
20592999289,11cyclictest131rcu_preempt09:30:132
20592999283,7cyclictest32-21ksoftirqd/207:40:262
205929992822,4cyclictest211395-21kworker/u8:1+events_unbound07:26:412
205929992822,3cyclictest0-21swapper/211:00:002
20592999281,8cyclictest0-21swapper/208:25:112
20592999281,6cyclictest32-21ksoftirqd/208:00:142
205929992813,6cyclictest218308-21kworker/u8:2+events_unbound07:45:072
205929992810,11cyclictest32-21ksoftirqd/208:40:132
205926992822,4cyclictest242310-21kworker/u8:0+events_unbound09:17:451
205926992821,4cyclictest0-21swapper/110:50:161
205926992821,4cyclictest0-21swapper/110:35:251
205926992821,4cyclictest0-21swapper/108:45:261
205926992821,4cyclictest0-21swapper/107:30:161
205926992814,8cyclictest131rcu_preempt11:28:471
20592199284,12cyclictest13550irq/42-30be0000.ethernet10:00:120
205921992820,4cyclictest0-21swapper/007:40:000
205921992820,4cyclictest0-21swapper/007:40:000
205921992819,6cyclictest318530-21grep12:35:160
205921992819,6cyclictest315205-21grep12:25:150
205921992819,6cyclictest223085-21unixbench_singl07:55:260
205934992720,4cyclictest315961-21tail12:25:243
205934992720,4cyclictest0-21swapper/307:45:263
205934992717,7cyclictest284962-21sed10:55:293
205934992717,6cyclictest0-21swapper/310:35:013
20592999278,11cyclictest32-21ksoftirqd/208:35:012
20592999276,12cyclictest131rcu_preempt09:45:002
205929992721,4cyclictest242310-21kworker/u8:0+events_unbound09:19:432
205929992720,4cyclictest207546-21cron07:15:012
205929992719,5cyclictest311ktimers/207:55:112
205929992716,4cyclictest131rcu_preempt10:10:252
205929992716,4cyclictest131rcu_preempt10:10:252
205926992721,4cyclictest264798-21kworker/u8:1+events_unbound10:18:411
205926992721,4cyclictest264798-21kworker/u8:1+events_unbound10:18:411
205926992720,5cyclictest280292-21kworker/u8:3+events_unbound11:40:131
205926992716,7cyclictest231ktimers/112:00:121
205926992715,10cyclictest629-21snmpd09:53:001
205926992713,7cyclictest131rcu_preempt08:00:011
20592699271,13cyclictest0-21swapper/107:47:031
20592699270,13cyclictest24-21ksoftirqd/107:50:121
205921992719,4cyclictest0-21swapper/009:00:150
205921992718,4cyclictest0-21swapper/008:40:210
205934992620,4cyclictest278501-21kworker/u8:0+events_unbound11:06:163
205934992619,4cyclictest295773-21sh11:30:003
205934992618,4cyclictest0-21swapper/308:20:263
205934992617,6cyclictest0-21swapper/312:30:253
205934992617,6cyclictest0-21swapper/311:45:233
20592999268,6cyclictest131rcu_preempt12:15:102
20592999268,6cyclictest131rcu_preempt12:15:102
20592999266,13cyclictest32-21ksoftirqd/210:30:212
20592699268,11cyclictest24-21ksoftirqd/111:55:051
20592699268,10cyclictest24-21ksoftirqd/110:45:191
20592699267,5cyclictest131rcu_preempt07:10:141
205926992619,4cyclictest0-21swapper/110:05:171
205926992617,6cyclictest0-21swapper/111:05:161
205926992617,5cyclictest286822-21grep11:00:261
205926992614,4cyclictest131rcu_preempt09:36:441
205921992620,4cyclictest261088-21kworker/u8:0+events_unbound09:50:240
205921992620,3cyclictest0-21swapper/009:55:240
205921992619,4cyclictest0-21swapper/012:00:240
205921992619,4cyclictest0-21swapper/010:20:250
205921992618,5cyclictest0-21swapper/011:55:020
205921992618,4cyclictest0-21swapper/010:40:010
205921992616,7cyclictest224383-21grep08:00:230
205921992616,7cyclictest204-21dbus-daemon08:10:000
205934992519,4cyclictest271420-21unixbench_multi10:15:273
205934992519,4cyclictest271420-21unixbench_multi10:15:263
205934992519,3cyclictest251007-21kthreadd09:20:003
205934992518,4cyclictest238429-21runrttasks08:40:263
205934992517,5cyclictest0-21swapper/311:35:213
205934992517,4cyclictest0-21swapper/309:50:263
205934992517,4cyclictest0-21swapper/308:55:013
205934992516,7cyclictest242310-21kworker/u8:0+events_unbound09:11:143
205934992516,4cyclictest0-21swapper/310:40:273
205934992515,7cyclictest214587-21users07:30:273
20592999256,11cyclictest32-21ksoftirqd/211:45:242
20592699259,13cyclictest0-21swapper/109:00:131
20592699258,6cyclictest24-21ksoftirqd/111:48:051
205926992511,10cyclictest231ktimers/108:25:111
205921992521,2cyclictest13550irq/42-30be0000.ethernet09:30:120
205921992511,11cyclictest0-21swapper/010:05:240
20592199250,6cyclictest2284862sleep008:13:340
205934992418,3cyclictest0-21swapper/312:20:273
205934992418,3cyclictest0-21swapper/312:20:273
205934992416,4cyclictest0-21swapper/311:35:003
205934992416,4cyclictest0-21swapper/311:35:003
205926992417,5cyclictest190927-21kworker/u8:2+events_unbound07:22:581
20592699241,6cyclictest0-21swapper/111:35:121
20592699241,12cyclictest0-21swapper/110:30:101
205921992420,2cyclictest13550irq/42-30be0000.ethernet08:20:130
205921992417,5cyclictest302506-21kworker/u8:0+events_unbound11:55:040
205921992417,3cyclictest0-21swapper/010:18:000
205921992417,3cyclictest0-21swapper/010:18:000
20592199241,4cyclictest294871-21ntp_states11:25:210
205921992413,8cyclictest283877-21sed10:55:000
205921992413,7cyclictest286843-21grep11:00:270
205921992413,7cyclictest219383-21/usr/sbin/munin07:45:240
20592199241,21cyclictest0-21swapper/007:25:190
20592199241,19cyclictest0-21swapper/011:36:450
20592199241,19cyclictest0-21swapper/009:07:060
20592199241,19cyclictest0-21swapper/008:46:380
205934992315,5cyclictest0-21swapper/312:05:013
205934992313,7cyclictest223865-21df_inode08:00:143
205934992310,9cyclictest1-21systemd09:05:153
20592699231,13cyclictest0-21swapper/110:28:491
205926992310,6cyclictest24-21ksoftirqd/112:20:211
205926992310,6cyclictest24-21ksoftirqd/112:20:211
205926992310,4cyclictest131rcu_preempt07:40:141
20592199235,13cyclictest13550irq/42-30be0000.ethernet08:55:150
205921992319,2cyclictest13550irq/42-30be0000.ethernet09:40:120
205921992317,3cyclictest0-21swapper/007:15:010
205921992316,3cyclictest0-21swapper/010:29:000
20592199231,19cyclictest313275-21munin-node12:20:140
20592199231,19cyclictest313275-21munin-node12:20:140
20592199231,19cyclictest0-21swapper/012:07:380
20592199231,18cyclictest0-21swapper/011:34:390
20592199231,18cyclictest0-21swapper/011:34:380
20592199231,18cyclictest0-21swapper/010:57:060
20592199231,18cyclictest0-21swapper/010:14:040
20592199231,18cyclictest0-21swapper/010:14:040
20592199230,19cyclictest0-21swapper/012:18:340
20592199230,19cyclictest0-21swapper/012:18:330
20592199230,19cyclictest0-21swapper/007:21:080
205934992216,3cyclictest0-21swapper/309:20:223
205934992214,5cyclictest0-21swapper/308:05:263
205934992213,6cyclictest0-21swapper/307:50:203
205921992215,3cyclictest0-21swapper/011:05:580
20592199221,3cyclictest0-21swapper/011:21:500
205921992212,7cyclictest291864-21grep11:15:250
205921992212,5cyclictest0-21swapper/011:40:220
20592199221,19cyclictest0-21swapper/011:12:270
20592199221,19cyclictest0-21swapper/010:30:180
20592199221,19cyclictest0-21swapper/009:18:230
20592199221,17cyclictest0-21swapper/008:53:330
20593499219,8cyclictest391ktimers/310:20:123
205934992115,3cyclictest0-21swapper/309:00:023
205934992111,6cyclictest311666-21/usr/sbin/munin12:15:133
205934992111,6cyclictest311666-21/usr/sbin/munin12:15:133
205934992110,8cyclictest269082-21cut10:10:193
205934992110,8cyclictest269082-21cut10:10:183
205921992113,5cyclictest0-21swapper/010:40:250
205934992015,3cyclictest260836-21threads09:45:283
205934992015,3cyclictest216929-21/usr/sbin/munin07:40:173
205934992014,3cyclictest299945-21ntpq11:40:173
205934992014,3cyclictest0-21swapper/311:25:003
205934992013,5cyclictest391ktimers/309:00:193
205934992011,6cyclictest267507-21ls10:05:203
205934991911,5cyclictest391ktimers/307:25:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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