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2026-07-23 - 16:13

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 Thu Jul 23, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4046250995345,5cyclictest4106533-21kworker/u8:0+events_unbound10:25:502
4046245994942,4cyclictest4053603-21munin-plugin-st07:30:001
4046252994429,12cyclictest391ktimers/312:05:143
4046250994432,9cyclictest311ktimers/208:15:122
4046250994432,9cyclictest311ktimers/208:15:112
4046252994231,7cyclictest0-21swapper/308:40:013
4046250994231,8cyclictest311ktimers/209:15:132
4046250994231,7cyclictest4087554-21sshd09:05:402
4046245994235,5cyclictest4104985-21cut10:00:001
4046245994235,5cyclictest4068746-21kworker/u8:2+events_unbound08:15:231
4046245994235,5cyclictest4068746-21kworker/u8:2+events_unbound08:15:221
4046245994230,5cyclictest4135953-21kworker/u8:2+events_unbound11:36:411
4046252994134,4cyclictest4106232-21unixbench_multi10:00:263
4046250994135,4cyclictest4133721-21kworker/u8:1+events_unbound11:36:072
4046250994133,6cyclictest4146439-21kworker/u8:1+events_unbound12:21:152
4046250994133,4cyclictest4120983-21kworker/u8:0+events_unbound10:50:542
4046245994133,4cyclictest0-21swapper/108:25:261
4046250994033,5cyclictest4092709-21kworker/u8:1+events_unbound09:30:452
4046250994018,3cyclictest131rcu_preempt12:15:372
4046245994032,4cyclictest0-21swapper/107:40:011
4046241994032,4cyclictest4063811-21cron08:00:010
4046241994028,9cyclictest208-21systemd-logind08:00:120
4046250993933,4cyclictest4047581-21kworker/u8:2+events_unbound07:15:012
4046250993928,4cyclictest4049982-21kworker/u8:0+events_unbound07:25:002
4046250993927,8cyclictest4066776-21grep08:05:262
4046252993830,3cyclictest0-21swapper/309:10:013
4046250993817,7cyclictest131rcu_preempt07:25:122
4046245993829,5cyclictest0-21swapper/111:55:011
4046245993820,5cyclictest4127324-21kworker/u8:0+events_unbound11:23:351
404625299373,5cyclictest131rcu_preempt12:15:113
4046252993729,5cyclictest4106533-21kworker/u8:0+events_unbound10:05:493
4046252993729,4cyclictest0-21swapper/308:40:153
4046252993727,5cyclictest4090964-21runrttasks09:15:413
404625099377,16cyclictest32-21ksoftirqd/210:50:012
4046250993731,4cyclictest4154936-21kworker/u8:0+events_unbound12:31:182
4046250993729,5cyclictest208-21systemd-logind09:25:422
4046250993720,6cyclictest4103004-21kworker/u8:2+events_unbound09:54:582
4046245993728,6cyclictest0-21swapper/109:40:001
4046245993727,6cyclictest0-21swapper/111:45:011
4046241993727,7cyclictest0-21swapper/012:15:150
4046252993629,4cyclictest0-21swapper/310:35:013
4046252993628,5cyclictest4056997-21auditctl07:40:003
404625299360,5cyclictest131rcu_preempt11:35:143
4046250993630,4cyclictest4104746-21kworker/u8:1+events_unbound10:00:482
4046250993629,4cyclictest4147796-21grep12:00:262
4046250993628,5cyclictest4068932-21cron08:15:002
4046250993620,5cyclictest131rcu_preempt07:30:172
4046250993618,6cyclictest131rcu_preempt10:58:202
4046245993627,4cyclictest0-21swapper/108:25:011
4046245993627,4cyclictest0-21swapper/108:25:001
4046241993629,4cyclictest0-21swapper/011:00:010
4046241993628,4cyclictest0-21swapper/009:00:010
4046241993627,6cyclictest4116062-21fschecks_time10:30:170
4046241993627,4cyclictest0-21swapper/011:50:000
4046241993625,8cyclictest4132891-21cron11:20:000
4046252993528,4cyclictest0-21swapper/310:40:013
4046252993527,4cyclictest0-21swapper/312:40:013
4046252993525,6cyclictest0-21swapper/307:20:003
4046250993528,5cyclictest4119024-21kworker/u8:2+events_unbound10:40:552
4046250993527,4cyclictest0-21swapper/211:15:252
4046250993524,7cyclictest4113729-21sh10:25:012
4046245993529,4cyclictest4127324-21kworker/u8:0+events_unbound11:11:011
4046245993526,4cyclictest0-21swapper/111:00:011
4046245993524,8cyclictest4091354-21sendmail09:20:011
4046245993524,7cyclictest0-21swapper/111:10:001
4046245993524,7cyclictest0-21swapper/107:50:271
4046241993525,7cyclictest0-21swapper/008:10:250
4046252993426,4cyclictest0-21swapper/308:00:133
4046252993426,4cyclictest0-21swapper/307:45:003
404625099349,11cyclictest32-21ksoftirqd/210:15:262
4046250993419,3cyclictest131rcu_preempt09:11:462
4046250993417,5cyclictest4135953-21kworker/u8:2+events_unbound11:28:192
404624599345,4cyclictest131rcu_preempt09:40:121
4046245993426,4cyclictest0-21swapper/112:35:221
4046245993425,6cyclictest0-21swapper/108:30:261
4046245993425,6cyclictest0-21swapper/108:30:251
4046245993424,7cyclictest4054897-21grep07:30:251
4046245993424,6cyclictest0-21swapper/110:25:261
4046241993427,3cyclictest0-21swapper/010:10:000
4046252993326,4cyclictest0-21swapper/311:55:243
4046252993324,5cyclictest4148256-21cron12:05:013
4046252993324,4cyclictest0-21swapper/308:50:163
4046250993326,4cyclictest0-21swapper/209:00:262
4046250993325,4cyclictest0-21swapper/211:50:012
4046250993317,5cyclictest131rcu_preempt11:00:132
4046250993316,5cyclictest131rcu_preempt07:40:192
4046250993314,4cyclictest0-21swapper/209:22:102
4046250993310,11cyclictest32-21ksoftirqd/208:40:252
4046252993226,3cyclictest4053599-21kthreadd07:30:013
4046252993226,3cyclictest0-21swapper/308:35:013
4046252993226,3cyclictest0-21swapper/308:35:003
4046252993225,4cyclictest0-21swapper/310:55:253
4046252993225,4cyclictest0-21swapper/309:40:153
4046252993225,3cyclictest0-21swapper/309:30:263
4046252993224,4cyclictest0-21swapper/311:00:173
4046250993225,4cyclictest0-21swapper/212:05:182
4046250993224,4cyclictest0-21swapper/208:35:182
4046250993221,7cyclictest311ktimers/212:30:002
4046250993215,5cyclictest131rcu_preempt10:30:232
4046250993210,13cyclictest32-21ksoftirqd/209:45:172
404624199320,5cyclictest131rcu_preempt07:10:120
4046252993125,4cyclictest4141160-21kworker/u8:0+events_unbound11:47:393
4046252993125,4cyclictest4092709-21kworker/u8:1+events_unbound09:25:443
4046252993123,4cyclictest0-21swapper/312:25:243
4046252993121,6cyclictest0-21swapper/312:10:263
404625299311,9cyclictest41156702cat10:30:023
4046252993118,8cyclictest4135627-21seq11:25:253
404625099319,11cyclictest32-21ksoftirqd/208:30:012
404625099319,11cyclictest131rcu_preempt12:35:232
4046250993123,6cyclictest4127324-21kworker/u8:0+events_unbound11:05:582
4046250993121,7cyclictest4098605-21tune2fs09:40:162
4046250993119,4cyclictest131rcu_preempt08:04:372
404624599315,4cyclictest131rcu_preempt09:05:111
4046245993123,5cyclictest4125586-21kworker/u8:1+events_unbound11:00:571
4046245993123,4cyclictest0-21swapper/109:50:011
4046241993124,3cyclictest0-21swapper/009:40:000
4046241993123,5cyclictest4119024-21kworker/u8:2+events_unbound10:45:010
4046241993122,6cyclictest0-21swapper/010:05:010
4046241993111,17cyclictest0-21swapper/008:30:220
4046241993111,17cyclictest0-21swapper/008:30:220
404624199310,4cyclictest131rcu_preempt09:25:140
4046252993023,3cyclictest0-21swapper/310:55:003
4046252993021,5cyclictest0-21swapper/309:20:253
4046250993021,6cyclictest0-21swapper/208:00:012
4046250993020,6cyclictest4096886-21grep09:35:162
4046250993019,8cyclictest4151876-21audit_send_reply12:15:002
4046250993015,4cyclictest4135953-21kworker/u8:2+events_unbound11:30:432
4046250993014,5cyclictest4084354-21kworker/u8:1+events_unbound08:58:422
4046245993024,4cyclictest4067006-21kworker/u8:1+events_unbound08:10:231
4046245993023,4cyclictest0-21swapper/110:45:261
4046245993016,7cyclictest131rcu_preempt11:15:181
404624199308,12cyclictest131rcu_preempt12:05:010
4046241993024,3cyclictest0-21swapper/012:40:000
4046241993024,3cyclictest0-21swapper/010:20:000
4046241993023,3cyclictest0-21swapper/008:15:260
4046241993023,3cyclictest0-21swapper/008:15:260
4046241993022,5cyclictest4091339-21grep09:20:000
4046241993020,6cyclictest0-21swapper/007:35:260
4046241993012,11cyclictest645-21runrttasks12:28:560
4046252992921,4cyclictest0-21swapper/307:10:253
404625099299,12cyclictest32-21ksoftirqd/210:05:022
404625099299,12cyclictest131rcu_preempt08:45:192
404625099298,12cyclictest32-21ksoftirqd/211:10:222
404625099296,5cyclictest131rcu_preempt08:20:212
404625099296,5cyclictest131rcu_preempt08:20:212
4046250992920,6cyclictest4061181-21tr07:50:222
4046250992913,4cyclictest131rcu_preempt11:40:232
4046250992913,10cyclictest4119048-21cron10:40:012
4046245992920,6cyclictest0-21swapper/109:20:161
4046245992920,6cyclictest0-21swapper/109:10:171
4046245992919,6cyclictest4067233-21cron08:10:011
4046245992916,10cyclictest4150167-21latency_hist12:10:001
4046245992915,8cyclictest131rcu_preempt07:17:161
4046241992922,4cyclictest4113724-21cron10:25:000
4046241992920,6cyclictest4099491-21kworker/u8:0+events_unbound09:45:450
4046241992920,6cyclictest4051431-21unixbench_multi07:20:260
404625299289,3cyclictest131rcu_preempt09:00:023
4046252992819,5cyclictest0-21swapper/311:50:163
4046252992819,5cyclictest0-21swapper/310:15:263
404625099289,11cyclictest32-21ksoftirqd/210:10:202
404625099289,11cyclictest32-21ksoftirqd/209:55:142
404625099287,7cyclictest4144053-21gzip11:50:222
4046250992822,4cyclictest4079012-21kworker/u8:2+events_unbound08:50:172
4046250992821,5cyclictest4146439-21kworker/u8:1+events_unbound11:59:402
4046250992816,4cyclictest131rcu_preempt08:32:122
4046250992816,4cyclictest131rcu_preempt08:32:122
404624599288,10cyclictest24-21ksoftirqd/111:55:201
404624599287,11cyclictest131rcu_preempt10:00:251
404624599283,20cyclictest231ktimers/108:45:001
4046245992821,4cyclictest0-21swapper/112:15:251
4046245992820,5cyclictest0-21swapper/109:35:001
404624599281,9cyclictest24-21ksoftirqd/107:45:141
4046245992819,6cyclictest0-21swapper/108:05:001
4046245992818,7cyclictest4135081-21grep11:25:161
4046245992815,8cyclictest131rcu_preempt11:32:251
4046245992815,7cyclictest131rcu_preempt11:45:251
4046245992814,8cyclictest131rcu_preempt08:35:051
4046245992814,4cyclictest4154936-21kworker/u8:0+events_unbound12:22:231
4046241992822,3cyclictest0-21swapper/007:20:010
4046241992821,3cyclictest0-21swapper/011:10:230
404624199281,6cyclictest4102824-21grep09:50:250
4046241992816,9cyclictest4077926-21apt-get08:40:110
404625299277,8cyclictest131rcu_preempt07:30:153
404625299277,3cyclictest0-21swapper/309:45:123
404625099275,14cyclictest32-21ksoftirqd/207:15:022
4046250992720,4cyclictest0-21swapper/207:45:272
404624599278,3cyclictest0-21swapper/109:50:141
4046245992719,5cyclictest0-21swapper/110:35:151
4046245992719,4cyclictest0-21swapper/109:00:151
404624599271,14cyclictest0-21swapper/108:47:571
404624599271,13cyclictest0-21swapper/112:01:551
4046241992720,4cyclictest0-21swapper/009:00:260
4046241992719,5cyclictest0-21swapper/007:55:010
4046241992714,4cyclictest131rcu_preempt08:29:360
404625299268,10cyclictest4119024-21kworker/u8:2+events_unbound10:44:233
404625299265,7cyclictest131rcu_preempt11:10:103
4046252992620,3cyclictest0-21swapper/307:45:173
4046252992619,5cyclictest4131418-21kworker/u8:2+events_unbound11:16:003
404625299260,3cyclictest131rcu_preempt11:30:123
4046250992618,6cyclictest4049982-21kworker/u8:0+events_unbound07:35:082
404624599267,9cyclictest0-21swapper/107:20:201
404624599262,12cyclictest0-21swapper/108:55:221
4046245992619,4cyclictest0-21swapper/110:10:241
4046245992618,5cyclictest0-21swapper/110:15:261
4046245992617,5cyclictest0-21swapper/108:50:161
4046245992616,6cyclictest4116035-21grep10:30:161
404624599261,12cyclictest0-21swapper/109:29:131
4046245992610,10cyclictest131rcu_preempt12:10:231
4046241992620,3cyclictest4122464-21kthreadd10:50:000
4046241992620,3cyclictest0-21swapper/011:40:210
4046241992619,4cyclictest0-21swapper/010:30:010
404624199261,21cyclictest4158853-21latency_hist12:35:020
404625299255,8cyclictest131rcu_preempt08:10:003
4046252992517,4cyclictest0-21swapper/310:00:013
404625299251,14cyclictest0-21swapper/310:12:003
4046252992510,3cyclictest131rcu_preempt09:55:013
404624599259,13cyclictest0-21swapper/112:30:111
404624599257,6cyclictest131rcu_preempt07:40:131
4046245992519,4cyclictest4123785-21kworker/u8:2+events_unbound10:53:321
4046245992516,6cyclictest1-21systemd10:40:541
4046245992516,6cyclictest0-21swapper/107:55:261
4046241992517,5cyclictest0-21swapper/009:35:010
404624199251,22cyclictest0-21swapper/011:55:120
404624199251,20cyclictest0-21swapper/007:41:140
4046241992511,6cyclictest4104746-21kworker/u8:1+events_unbound09:59:070
404625299242,5cyclictest0-21swapper/307:50:133
4046252992418,4cyclictest4067006-21kworker/u8:1+events_unbound08:16:123
4046252992418,4cyclictest4067006-21kworker/u8:1+events_unbound08:16:123
4046252992417,3cyclictest0-21swapper/309:35:243
4046252992416,6cyclictest145-21jbd2/mmcblk1p2-811:22:073
4046252992416,5cyclictest4113696-21kworker/u8:1+events_unbound10:45:553
4046252992416,4cyclictest0-21swapper/309:00:263
4046252992410,3cyclictest131rcu_preempt07:20:243
4046245992417,5cyclictest4148204-21kworker/u8:2+events_unbound12:29:021
4046245992417,4cyclictest0-21swapper/110:20:241
4046245992416,6cyclictest4047581-21kworker/u8:2+events_unbound07:14:261
404624199249,7cyclictest131rcu_preempt09:20:260
4046241992418,4cyclictest4084354-21kworker/u8:1+events_unbound09:10:200
4046241992418,3cyclictest0-21swapper/011:50:200
4046241992417,4cyclictest0-21swapper/007:30:160
4046241992416,5cyclictest0-21swapper/008:55:010
4046241992415,7cyclictest4109582-21mailstats10:10:230
4046241992415,6cyclictest4128347-21ntp_kernel_pll_11:05:200
4046241992414,7cyclictest4052956-21sed07:25:250
404624199241,19cyclictest0-21swapper/011:38:520
404624199241,19cyclictest0-21swapper/009:42:400
404624199241,19cyclictest0-21swapper/007:49:200
404624199240,20cyclictest0-21swapper/011:32:410
404624199240,20cyclictest0-21swapper/011:29:010
404625299236,3cyclictest131rcu_preempt08:45:213
404625299236,3cyclictest131rcu_preempt07:55:273
404625299235,7cyclictest131rcu_preempt11:40:233
404625299232,3cyclictest4068290-21sed08:10:243
404625299231,6cyclictest4112998-21mailstats10:20:223
404625299231,6cyclictest4088994-21ls09:10:243
4046252992310,3cyclictest131rcu_preempt12:30:133
4046241992318,3cyclictest13550irq/42-30be0000.ethernet12:20:140
4046241992318,2cyclictest0-21swapper/008:05:140
4046241992316,4cyclictest4071099-21cut08:20:150
4046241992316,4cyclictest4071099-21cut08:20:150
4046241992316,3cyclictest0-21swapper/012:05:060
4046241992316,3cyclictest0-21swapper/009:08:020
4046241992316,3cyclictest0-21swapper/008:37:080
404624199231,18cyclictest0-21swapper/010:35:070
404625299227,2cyclictest131rcu_preempt11:10:013
4046252992213,6cyclictest4071380-21grep08:20:203
4046252992213,6cyclictest4071380-21grep08:20:193
4046245992216,4cyclictest4106533-21kworker/u8:0+events_unbound10:08:461
4046241992217,3cyclictest13550irq/42-30be0000.ethernet08:45:240
4046241992216,3cyclictest0-21swapper/011:00:210
404624199215,5cyclictest4113696-21kworker/u8:1+events_unbound10:50:210
4046252992014,3cyclictest0-21swapper/308:25:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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