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2026-06-26 - 17:39

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 Fri Jun 26, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3449972995338,11cyclictest311ktimers/208:55:112
3449968995038,9cyclictest3495493-21sh09:20:001
3449976994840,5cyclictest3476319-21munin-plugin-st08:25:013
3449963994737,6cyclictest3495073-21grep09:15:250
3449972994432,9cyclictest311ktimers/212:30:102
3449963994331,8cyclictest3557338-21sendmail12:20:000
344996899421,10cyclictest24-21ksoftirqd/110:40:131
3449963994235,4cyclictest3536653-21sendmail11:20:000
3449976994030,6cyclictest3500830-21grep09:35:003
3449968994022,6cyclictest131rcu_preempt09:45:121
3449976993927,7cyclictest0-21swapper/309:50:153
3449968993929,5cyclictest0-21swapper/107:15:011
3449968993928,8cyclictest3460833-21latency_hist07:40:011
3449963993933,4cyclictest3564139-21cron12:40:010
3449963993933,4cyclictest3483092-21kworker/u8:1+events_unbound08:49:160
3449963993930,6cyclictest3546639-21unixbench_multi11:45:250
3449972993827,7cyclictest3546678-21runrttasks11:45:252
3449968993827,7cyclictest3544973-21grep11:40:241
3449963993826,9cyclictest121ktimers/007:25:100
3449963993825,9cyclictest3460261-21grep07:35:260
3449976993725,8cyclictest0-21swapper/307:40:013
3449976993725,7cyclictest0-21swapper/307:55:283
3449976993725,7cyclictest0-21swapper/307:55:273
344997699371,15cyclictest3508865-21tail09:55:273
3449972993728,5cyclictest0-21swapper/210:30:002
3449972993727,6cyclictest0-21swapper/209:15:262
3449968993728,5cyclictest3536638-21sh11:20:001
3449968993719,7cyclictest131rcu_preempt09:20:111
3449968993624,6cyclictest0-21swapper/111:25:231
3449963993628,5cyclictest3474593-21munin-run08:20:010
3449963993628,4cyclictest0-21swapper/010:45:000
3449976993526,4cyclictest0-21swapper/310:50:003
3449976993525,6cyclictest3555208-21grep12:10:253
3449972993528,4cyclictest3484630-21unixbench_singl08:45:272
3449972993525,7cyclictest3536199-21grep11:15:252
3449968993528,5cyclictest3483092-21kworker/u8:1+events_unbound08:49:181
3449968993527,5cyclictest3541981-21munin-plugin-st11:35:011
3449968993527,4cyclictest0-21swapper/109:10:251
3449963993527,6cyclictest3534557-21kworker/u8:1+events_unbound11:14:350
3449963993527,4cyclictest0-21swapper/011:40:010
3449963993522,9cyclictest3505533-21grep09:45:250
3449976993425,4cyclictest0-21swapper/311:19:343
3449976993421,9cyclictest3477306-21ntp_offset08:25:213
3449976993421,9cyclictest3477306-21ntp_offset08:25:213
3449976993421,10cyclictest391ktimers/307:15:163
3449972993427,3cyclictest0-21swapper/209:30:152
3449972993424,6cyclictest0-21swapper/208:10:012
3449972993424,6cyclictest0-21swapper/208:10:012
3449968993426,4cyclictest0-21swapper/108:20:001
3449968993424,7cyclictest3503825-21grep09:40:251
3449968993423,7cyclictest3512289-21grep10:05:241
3449963993426,5cyclictest0-21swapper/007:25:010
3449963993424,7cyclictest3481185-21grep08:35:260
3449963993424,7cyclictest3451997-21latency_hist07:15:030
3449976993323,6cyclictest0-21swapper/312:00:003
3449972993326,3cyclictest0-21swapper/207:50:012
3449972993324,6cyclictest0-21swapper/208:30:282
3449972993324,5cyclictest0-21swapper/208:20:252
3449972993324,5cyclictest0-21swapper/207:45:002
3449972993324,5cyclictest0-21swapper/207:25:022
3449972993322,7cyclictest0-21swapper/210:15:242
344996899335,5cyclictest131rcu_preempt11:05:131
3449968993325,4cyclictest0-21swapper/111:50:371
3449968993325,4cyclictest0-21swapper/111:50:371
3449968993325,4cyclictest0-21swapper/109:00:151
344996899331,6cyclictest0-21swapper/112:20:121
3449963993326,3cyclictest0-21swapper/010:35:260
3449963993325,4cyclictest0-21swapper/011:24:340
3449976993224,4cyclictest0-21swapper/309:35:233
3449976993224,4cyclictest0-21swapper/309:35:223
3449976993224,4cyclictest0-21swapper/307:10:183
3449976993223,4cyclictest0-21swapper/308:50:263
3449976993221,7cyclictest3488854-21fschecks_count09:00:153
3449972993224,4cyclictest3509347-21kthreadd10:00:002
3449972993224,4cyclictest0-21swapper/211:40:002
3449972993224,4cyclictest0-21swapper/208:44:152
3449972993224,4cyclictest0-21swapper/208:44:152
3449972993222,6cyclictest0-21swapper/209:10:262
3449972993221,8cyclictest3517406-21grep10:20:242
344996899323,5cyclictest131rcu_preempt07:30:141
3449968993224,5cyclictest3525159-21fschecks_time10:45:171
3449968993224,4cyclictest0-21swapper/111:20:161
3449968993223,4cyclictest0-21swapper/107:29:051
3449968993221,7cyclictest0-21swapper/112:15:241
3449963993226,3cyclictest0-21swapper/008:50:160
3449963993222,7cyclictest3499111-21cron09:30:000
3449963993222,6cyclictest0-21swapper/011:50:370
3449963993222,6cyclictest0-21swapper/011:50:370
3449976993123,4cyclictest0-21swapper/311:40:253
3449976993123,4cyclictest0-21swapper/310:10:243
3449976993119,8cyclictest3530280-21fschecks_time11:00:153
3449972993124,4cyclictest0-21swapper/211:25:142
3449972993122,6cyclictest0-21swapper/208:40:002
344996899314,4cyclictest131rcu_preempt12:10:121
344996899313,5cyclictest131rcu_preempt10:55:101
3449968993122,5cyclictest0-21swapper/110:20:011
344997699300,13cyclictest3494911-21timerandwakeup09:15:253
3449972993023,4cyclictest0-21swapper/208:00:252
3449972993020,6cyclictest0-21swapper/207:50:252
3449972993020,6cyclictest0-21swapper/207:50:242
3449963993019,7cyclictest3562012-21grep12:30:230
344997699292,9cyclictest3537453-21ntp_states11:20:213
3449976992919,5cyclictest3522997-21sh10:40:003
344997699290,11cyclictest3562661-21/usr/sbin/munin12:35:233
344997699290,10cyclictest3485188-21ls08:50:003
3449972992922,4cyclictest0-21swapper/207:30:282
3449972992921,4cyclictest0-21swapper/210:00:162
3449972992920,6cyclictest3460876-21sort07:40:012
3449972992919,6cyclictest0-21swapper/212:20:252
3449968992920,6cyclictest0-21swapper/111:55:241
3449963992921,5cyclictest0-21swapper/008:40:270
3449963992921,5cyclictest0-21swapper/008:40:260
3449963992921,4cyclictest0-21swapper/010:55:250
3449963992920,6cyclictest3541535-21grep11:30:260
3449976992821,3cyclictest0-21swapper/311:35:253
3449976992820,4cyclictest0-21swapper/309:00:013
3449976992818,7cyclictest0-21swapper/308:10:253
3449976992818,7cyclictest0-21swapper/308:10:253
3449976992818,6cyclictest0-21swapper/307:50:243
3449976992818,6cyclictest0-21swapper/307:50:243
3449976992818,4cyclictest0-21swapper/312:00:153
344997699280,9cyclictest3463708-21sed07:45:253
3449972992821,4cyclictest0-21swapper/210:50:262
3449972992821,4cyclictest0-21swapper/210:50:252
3449972992820,5cyclictest0-21swapper/210:30:152
3449972992820,4cyclictest0-21swapper/211:00:242
3449972992818,6cyclictest0-21swapper/209:50:002
3449972992817,8cyclictest3560735-21idleruntime-cro12:30:002
3449968992821,5cyclictest3500435-21kworker/u8:1+events_unbound09:38:411
3449968992821,5cyclictest3500435-21kworker/u8:1+events_unbound09:38:411
3449968992821,4cyclictest0-21swapper/111:45:211
3449968992820,5cyclictest3562804-21fschecks_count12:35:151
3449968992813,5cyclictest131rcu_preempt07:15:161
3449968992810,5cyclictest131rcu_preempt08:30:131
3449963992819,6cyclictest0-21swapper/011:09:590
3449963992818,7cyclictest121ktimers/010:20:120
3449963992818,6cyclictest3520866-21grep10:30:230
3449963992817,8cyclictest3528110-21auditctl10:55:010
3449963992817,8cyclictest3528110-21auditctl10:55:000
3449976992720,4cyclictest0-21swapper/308:30:283
3449976992720,4cyclictest0-21swapper/307:25:243
3449976992720,3cyclictest0-21swapper/307:30:173
3449976992718,5cyclictest0-21swapper/312:15:243
3449976992718,5cyclictest0-21swapper/310:30:013
3449972992721,3cyclictest0-21swapper/212:15:252
3449972992721,3cyclictest0-21swapper/209:40:012
3449972992721,3cyclictest0-21swapper/209:40:002
3449972992720,3cyclictest0-21swapper/212:10:152
3449972992719,4cyclictest0-21swapper/212:09:592
3449972992719,4cyclictest0-21swapper/210:40:012
3449972992718,6cyclictest0-21swapper/211:20:262
3449972992718,5cyclictest0-21swapper/211:05:242
3449972992718,5cyclictest0-21swapper/208:20:002
3449968992720,4cyclictest0-21swapper/110:05:001
3449968992719,5cyclictest53-21kcompactd008:25:211
3449968992719,5cyclictest53-21kcompactd008:25:211
3449968992719,4cyclictest0-21swapper/108:44:151
3449968992719,4cyclictest0-21swapper/108:44:151
344996899271,4cyclictest3521524-21apt-get10:35:121
3449968992712,7cyclictest3543308-21kworker/u8:1+events_unbound11:36:551
3449963992721,3cyclictest0-21swapper/010:10:000
3449963992720,3cyclictest0-21swapper/008:10:260
3449963992720,3cyclictest0-21swapper/008:10:250
3449963992719,4cyclictest0-21swapper/010:10:240
3449963992719,4cyclictest0-21swapper/009:45:000
3449963992718,6cyclictest0-21swapper/011:55:230
3449976992616,7cyclictest0-21swapper/308:40:133
3449976992616,7cyclictest0-21swapper/308:40:133
3449976992616,6cyclictest3480312-21fschecks_count08:35:153
3449976992616,6cyclictest0-21swapper/311:50:143
3449976992616,6cyclictest0-21swapper/311:50:143
3449976992615,7cyclictest0-21swapper/311:10:273
3449972992619,5cyclictest3552011-21kworker/u8:0+events_unbound12:04:532
3449972992618,4cyclictest0-21swapper/210:45:262
3449972992618,4cyclictest0-21swapper/209:00:242
3449972992618,4cyclictest0-21swapper/207:10:272
3449972992615,7cyclictest3548324-21grep11:50:382
3449972992615,7cyclictest3548324-21grep11:50:382
3449972992615,7cyclictest3490535-21uniq09:05:142
3449968992620,4cyclictest3543308-21kworker/u8:1+events_unbound12:03:511
3449968992620,4cyclictest3464344-21kworker/u8:2+events_unbound08:00:251
3449968992618,5cyclictest0-21swapper/111:00:161
3449968992615,7cyclictest0-21swapper/109:25:261
3449963992619,4cyclictest2308608-1kworker/0:0H+mmc_complete10:00:020
3449963992619,4cyclictest13550irq/42-30be0000.ethernet08:00:250
3449963992619,4cyclictest13550irq/42-30be0000.ethernet08:00:010
3449963992619,4cyclictest13550irq/42-30be0000.ethernet08:00:000
3449963992615,7cyclictest0-21swapper/007:45:010
344996399261,19cyclictest3544928-21sed11:40:240
3449976992517,4cyclictest0-21swapper/310:05:143
3449976992513,9cyclictest3504820-21cut09:45:183
3449976992513,9cyclictest0-21swapper/310:42:393
3449976992512,10cyclictest0-21swapper/308:02:083
3449972992518,3cyclictest0-21swapper/208:25:242
3449972992518,3cyclictest0-21swapper/208:25:232
3449972992517,5cyclictest0-21swapper/211:40:212
3449972992517,5cyclictest0-21swapper/208:15:002
3449972992517,5cyclictest0-21swapper/208:15:002
3449972992517,4cyclictest0-21swapper/209:40:262
3449968992514,8cyclictest0-21swapper/110:10:201
3449968992514,7cyclictest3475907-21grep08:20:251
3449963992518,3cyclictest0-21swapper/012:15:000
344996399251,5cyclictest3510166-21ntp_states10:00:220
3449976992417,3cyclictest0-21swapper/308:15:233
3449976992416,4cyclictest3516181-21munin-plugin-st10:20:003
3449976992414,7cyclictest3547101-21basename11:50:003
3449976992414,7cyclictest3454443-21if_eth007:20:173
3449976992412,8cyclictest0-21swapper/309:05:113
3449976992412,10cyclictest0-21swapper/308:05:213
3449976992412,10cyclictest0-21swapper/308:05:213
3449972992417,4cyclictest3533677-21fschecks_time11:10:162
3449972992417,3cyclictest0-21swapper/210:45:002
3449972992416,4cyclictest0-21swapper/209:25:252
3449968992419,3cyclictest3533461-21/usr/sbin/munin11:10:211
3449968992419,2cyclictest0-21swapper/107:20:181
3449968992418,4cyclictest3553801-21kworker/u8:2+events_unbound12:31:511
3449968992418,4cyclictest3512637-21kworker/u8:1+events_unbound10:25:421
3449968992418,4cyclictest3483092-21kworker/u8:1+events_unbound08:55:221
3449968992418,3cyclictest0-21swapper/108:00:001
3449968992418,3cyclictest0-21swapper/108:00:001
3449968992417,5cyclictest3552011-21kworker/u8:0+events_unbound12:28:101
3449968992417,5cyclictest3500435-21kworker/u8:1+events_unbound09:34:261
3449968992416,4cyclictest0-21swapper/107:45:171
3449968992415,6cyclictest3528109-21apt10:55:001
3449968992415,6cyclictest3528109-21apt10:55:001
3449968992415,4cyclictest0-21swapper/109:05:241
344996899241,4cyclictest131rcu_preempt10:30:101
3449968992414,6cyclictest0-21swapper/110:20:241
3449968992414,6cyclictest0-21swapper/109:55:211
344996399245,14cyclictest13550irq/42-30be0000.ethernet09:50:130
3449963992418,3cyclictest3499508-21fschecks_count09:30:160
3449963992417,3cyclictest0-21swapper/011:30:010
3449963992414,7cyclictest3497332-21wc09:25:010
3449963992414,6cyclictest3519117-21grep10:25:250
3449963992413,8cyclictest438-21cron11:04:590
3449963992413,8cyclictest0-21swapper/008:20:120
3449963992412,8cyclictest3516183-21sendmail10:20:000
344997699238,12cyclictest3492735-21processes09:10:233
3449976992317,3cyclictest0-21swapper/312:35:003
3449976992317,3cyclictest0-21swapper/310:55:203
3449976992313,8cyclictest3528152-21sed10:55:013
3449976992313,8cyclictest3528152-21sed10:55:003
3449976992312,8cyclictest3461332-21cut07:40:163
3449976992311,9cyclictest0-21swapper/312:08:233
3449976992310,10cyclictest3510389-21sed10:00:253
3449976992310,10cyclictest0-21swapper/310:30:143
344997699230,15cyclictest0-21swapper/309:42:263
3449972992317,4cyclictest0-21swapper/211:55:232
3449972992315,5cyclictest3541560-21unixbench_singl11:30:262
3449972992315,5cyclictest0-21swapper/207:15:302
3449968992317,3cyclictest0-21swapper/108:10:241
3449968992317,3cyclictest0-21swapper/108:10:231
3449968992317,3cyclictest0-21swapper/107:50:241
3449968992317,3cyclictest0-21swapper/107:50:231
3449968992315,6cyclictest231ktimers/112:05:111
3449963992318,3cyclictest13550irq/42-30be0000.ethernet08:30:010
3449963992318,3cyclictest13550irq/42-30be0000.ethernet08:30:010
3449963992317,3cyclictest0-21swapper/009:00:250
3449963992317,2cyclictest0-21swapper/010:49:400
3449963992315,4cyclictest0-21swapper/009:10:250
3449963992315,4cyclictest0-21swapper/007:30:280
344996399231,20cyclictest0-21swapper/012:05:150
344996399231,18cyclictest0-21swapper/007:51:560
344996399231,18cyclictest0-21swapper/007:51:560
344996399231,18cyclictest0-21swapper/007:48:170
3449976992216,4cyclictest391ktimers/311:30:123
3449976992215,4cyclictest0-21swapper/309:30:003
3449976992213,6cyclictest3533242-21idleruntime-cro11:09:593
3449976992212,7cyclictest3516629-21fschecks_time10:20:153
3449976992212,7cyclictest3495876-21sort09:20:143
344997699221,10cyclictest645-21runrttasks12:25:513
3449972992216,4cyclictest3529491-21kworker/u8:0+events_unbound10:59:342
3449972992216,3cyclictest0-21swapper/210:10:192
3449972992215,4cyclictest0-21swapper/210:05:232
3449972992212,6cyclictest0-21swapper/212:40:002
3449963992217,3cyclictest0-21swapper/009:05:300
3449963992212,6cyclictest0-21swapper/008:55:150
344996399221,19cyclictest0-21swapper/007:18:590
344996399220,3cyclictest0-21swapper/012:20:140
3449972992117,2cyclictest0-21swapper/208:50:192
3449972992115,3cyclictest0-21swapper/207:25:192
3449972992114,4cyclictest3466453-21fschecks_count07:55:172
3449972992114,4cyclictest3466453-21fschecks_count07:55:172
344996899215,12cyclictest3486731-21cron08:55:001
344996899212,3cyclictest131rcu_preempt09:50:121
3449968992115,4cyclictest3457200-21kworker/u8:0+events_unbound07:41:081
3449963992114,4cyclictest3478612-21fschecks_count08:30:160
3449972992013,4cyclictest0-21swapper/209:25:012
3449963992014,3cyclictest0-21swapper/008:09:050
3449963992014,3cyclictest0-21swapper/008:09:050
3449963992010,7cyclictest3559487-21cut12:25:150
3449972991912,4cyclictest301rcuc/209:50:202
3449968991912,5cyclictest231ktimers/108:05:131
3449968991912,5cyclictest231ktimers/108:05:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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