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2026-08-19 - 23:29

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 Wed Aug 19, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
424205994738,6cyclictest443493-21cron08:05:013
424196994637,6cyclictest537869-21grep12:35:251
424192994535,7cyclictest446446-21grep08:10:250
424196994418,22cyclictest0-21swapper/110:00:201
424196994418,21cyclictest0-21swapper/110:50:001
424196994412,3cyclictest0-21swapper/108:45:161
424196994318,21cyclictest0-21swapper/107:40:261
424196994318,21cyclictest0-21swapper/107:40:261
42419699431,10cyclictest501024-21cat10:50:181
424192994334,6cyclictest462683-21sendmail09:00:000
424205994232,7cyclictest515523-21grep11:30:253
424196994114,24cyclictest0-21swapper/111:25:141
42419699411,13cyclictest464374-21cron09:05:001
42419699411,13cyclictest460953-21cron08:55:011
42419699411,13cyclictest460953-21cron08:55:011
42419699411,11cyclictest493375-21cron10:30:011
424201994032,4cyclictest524509-21idleruntime-cro12:00:002
42419699402,8cyclictest438811-21tune2fs07:50:161
424196994017,19cyclictest0-21swapper/110:15:171
42419699401,10cyclictest485902-21wc10:05:251
42419699401,10cyclictest485902-21wc10:05:251
42419699401,10cyclictest430303-21fschecks_time07:25:161
424201993928,7cyclictest467375-21grep09:10:272
42419699397,4cyclictest447342-21fschecks_time08:15:171
424196993931,4cyclictest0-21swapper/112:20:161
42419699392,10cyclictest469699-21cat09:20:021
42419699391,9cyclictest456942-21unixbench_singl08:40:261
42419699391,9cyclictest456942-21unixbench_singl08:40:251
424196993915,21cyclictest475057-21grep09:35:171
424196993914,5cyclictest444049-21mii-tool08:05:181
424196993911,4cyclictest519617-21/usr/sbin/munin11:45:131
42419699391,11cyclictest505558-21gpgv11:05:001
42419699391,10cyclictest474610-21cron09:35:001
424196993910,3cyclictest0-21swapper/110:30:251
424192993932,4cyclictest0-21swapper/008:05:000
424192993928,8cyclictest0-21swapper/008:00:000
424205993832,3cyclictest0-21swapper/310:40:163
424196993825,9cyclictest0-21swapper/107:30:251
42419699382,11cyclictest491675-21cron10:25:011
42419699381,9cyclictest508711-21grep11:10:251
42419699381,9cyclictest508711-21grep11:10:251
424196993814,21cyclictest0-21swapper/109:50:221
424196993812,3cyclictest0-21swapper/110:40:241
424196993811,3cyclictest645-21runrttasks09:45:061
42419699381,13cyclictest536548-21sshd12:33:571
42419699381,13cyclictest519402-21cut11:45:011
424196993811,3cyclictest0-21swapper/112:15:001
424196993811,3cyclictest0-21swapper/108:35:251
42419699381,11cyclictest478047-21grep09:45:011
42419699381,11cyclictest425833-21munin-run07:15:011
42419699381,10cyclictest452991-21tr08:30:201
424196993810,25cyclictest0-21swapper/112:20:011
424192993831,3cyclictest0-21swapper/011:13:420
424192993831,3cyclictest0-21swapper/011:13:420
424192993830,5cyclictest428136-21cron07:20:010
424192993827,7cyclictest437905-21grep07:45:260
424205993730,4cyclictest0-21swapper/308:15:013
424205993727,5cyclictest0-21swapper/311:13:423
424205993727,5cyclictest0-21swapper/311:13:423
424205993725,8cyclictest489544-21grep10:15:273
424201993729,4cyclictest483134-21cron10:00:002
424201993724,9cyclictest437954-21grep07:45:252
424201993712,16cyclictest0-21swapper/211:30:002
42419699371,6cyclictest462219-21grep08:55:271
424196993712,3cyclictest521317-21/usr/sbin/munin11:50:131
424196993711,3cyclictest464617-21/usr/sbin/munin09:05:271
42419699371,12cyclictest525272-21grep12:00:221
42419699371,11cyclictest451815-21grep08:25:271
42419699371,10cyclictest507460-21awk11:10:001
42419699371,10cyclictest487842-21grep10:10:261
424192993727,7cyclictest121ktimers/008:40:140
424192993727,7cyclictest121ktimers/008:40:140
424205993628,4cyclictest0-21swapper/309:05:183
424205993625,7cyclictest0-21swapper/311:35:273
424201993626,6cyclictest0-21swapper/207:10:272
424201993624,8cyclictest433251-21debian-sa107:35:012
42419699367,5cyclictest0-21swapper/112:25:261
424196993625,7cyclictest0-21swapper/108:25:011
42419699362,13cyclictest428121-21cron07:20:011
424196993610,3cyclictest0-21swapper/111:55:251
424192993626,6cyclictest0-21swapper/008:45:240
424201993526,6cyclictest505566-21latency_hist11:05:002
424201993525,6cyclictest0-21swapper/212:40:012
424201993510,14cyclictest131rcu_preempt11:50:202
42419699351,8cyclictest527908-21cron12:10:001
42419699351,8cyclictest515568-21grep11:30:251
42419699351,13cyclictest496784-21latency_hist10:40:011
42419699351,11cyclictest445608-21tune2fs08:10:161
424196993510,4cyclictest0-21swapper/109:20:261
424192993528,3cyclictest0-21swapper/010:35:010
424192993524,6cyclictest0-21swapper/007:40:270
424192993524,6cyclictest0-21swapper/007:40:260
424192993518,14cyclictest11-21ksoftirqd/011:20:110
424205993426,4cyclictest0-21swapper/309:30:013
424205993426,4cyclictest0-21swapper/308:20:163
42420199349,10cyclictest481639-21latency_hist09:55:012
424196993424,5cyclictest0-21swapper/110:55:181
42419699341,13cyclictest645-21runrttasks11:15:271
42419699341,12cyclictest441776-21latency_hist07:59:591
42419699341,10cyclictest482726-21head09:55:261
424196993410,3cyclictest645-21runrttasks08:02:211
424192993420,9cyclictest121ktimers/010:50:100
424192993420,12cyclictest11-21ksoftirqd/012:35:120
424205993326,4cyclictest445198-21kthreadd08:10:003
424201993323,5cyclictest0-21swapper/208:50:172
424201993323,5cyclictest0-21swapper/208:50:172
424196993313,5cyclictest517079-21timerandwakeup11:35:251
424192993325,4cyclictest0-21swapper/011:30:250
424192993316,14cyclictest11-21ksoftirqd/011:50:110
424205993226,3cyclictest0-21swapper/309:00:153
424205993222,7cyclictest529348-21tail12:10:253
424201993220,8cyclictest444732-21grep08:05:262
424201993216,9cyclictest131rcu_preempt08:47:222
424201993210,7cyclictest32-21ksoftirqd/212:30:002
424196993225,4cyclictest0-21swapper/109:25:171
424192993226,4cyclictest465955-21kworker/u8:3+events_unbound09:23:320
424192993224,5cyclictest0-21swapper/010:59:590
424205993124,3cyclictest0-21swapper/309:20:173
424205993123,5cyclictest424183-21cyclictest10:35:273
424205993123,4cyclictest0-21swapper/310:50:253
424205993123,4cyclictest0-21swapper/308:30:013
424205993121,5cyclictest474170-21grep09:30:263
42420199315,9cyclictest32-21ksoftirqd/209:05:192
42420199315,6cyclictest32-21ksoftirqd/207:55:012
424201993121,7cyclictest301rcuc/210:36:502
424201993120,7cyclictest510449-21grep11:15:272
424192993125,3cyclictest0-21swapper/008:55:010
424192993125,3cyclictest0-21swapper/008:55:010
424192993124,4cyclictest0-21swapper/012:10:000
424192993120,7cyclictest0-21swapper/008:25:020
424205993023,4cyclictest459138-21latency_hist08:50:013
424205993023,4cyclictest0-21swapper/312:25:263
424205993023,4cyclictest0-21swapper/308:55:013
424205993023,4cyclictest0-21swapper/308:55:003
424205993022,5cyclictest0-21swapper/309:00:003
424205993022,4cyclictest0-21swapper/312:30:163
424205993021,6cyclictest0-21swapper/312:00:013
424205993020,6cyclictest0-21swapper/310:10:263
42420199306,5cyclictest32-21ksoftirqd/211:15:002
42420199306,5cyclictest32-21ksoftirqd/211:15:002
42420199306,5cyclictest32-21ksoftirqd/210:05:262
42420199306,5cyclictest32-21ksoftirqd/210:05:262
42420199304,7cyclictest32-21ksoftirqd/210:55:272
42420199304,7cyclictest32-21ksoftirqd/207:55:152
42420199303,9cyclictest32-21ksoftirqd/207:45:012
42420199303,9cyclictest32-21ksoftirqd/207:45:012
424201993022,4cyclictest0-21swapper/211:30:242
424201993021,6cyclictest528123-21apt-key12:10:012
424201993020,7cyclictest311ktimers/210:25:012
424201993020,7cyclictest311ktimers/208:31:182
424201993020,6cyclictest474171-21grep09:30:262
42420199301,9cyclictest32-21ksoftirqd/211:05:212
424201993015,9cyclictest131rcu_preempt12:17:512
424201993011,3cyclictest511281-21fschecks_time11:20:152
42419699302,6cyclictest434950-21cron07:40:011
424192993023,4cyclictest455649-21idleruntime-cro08:40:000
42420199293,8cyclictest32-21ksoftirqd/210:40:242
42420199293,7cyclictest32-21ksoftirqd/208:40:252
42420199293,7cyclictest32-21ksoftirqd/208:40:242
42420199292,8cyclictest32-21ksoftirqd/209:00:182
424201992921,4cyclictest0-21swapper/209:25:272
424201992919,7cyclictest311ktimers/210:45:182
424201992918,7cyclictest443035-21runrttasks08:00:262
424201992914,8cyclictest131rcu_preempt07:16:312
424192992923,4cyclictest466091-21cron09:10:000
424192992922,4cyclictest491674-21cron10:25:010
424192992919,6cyclictest0-21swapper/011:19:590
42420199284,6cyclictest32-21ksoftirqd/209:20:132
42420199283,6cyclictest32-21ksoftirqd/208:10:152
424201992822,4cyclictest311ktimers/210:25:132
424201992821,4cyclictest489972-21idleruntime-cro10:20:002
424201992820,5cyclictest311ktimers/207:29:132
42419299283,22cyclictest0-21swapper/011:46:010
424192992822,4cyclictest520974-21kworker/u8:2+events_unbound12:13:560
424192992821,3cyclictest0-21swapper/008:15:270
424192992820,4cyclictest0-21swapper/009:20:010
424205992720,4cyclictest0-21swapper/312:10:013
424205992720,4cyclictest0-21swapper/308:35:163
424205992719,5cyclictest0-21swapper/312:24:593
424205992717,7cyclictest485203-21df_inode10:05:153
424205992717,7cyclictest485203-21df_inode10:05:143
42420199277,5cyclictest311ktimers/208:56:322
42420199274,7cyclictest32-21ksoftirqd/212:30:202
42420199272,7cyclictest32-21ksoftirqd/208:25:262
42420199272,5cyclictest32-21ksoftirqd/209:45:012
424201992720,3cyclictest484855-21sh10:05:002
42420199271,8cyclictest32-21ksoftirqd/208:20:252
424201992715,6cyclictest131rcu_preempt07:20:512
424201992715,5cyclictest131rcu_preempt12:02:292
424201992711,5cyclictest131rcu_preempt10:50:212
424196992719,4cyclictest0-21swapper/109:10:271
424192992719,4cyclictest0-21swapper/010:03:340
424192992718,6cyclictest444788-21grep08:05:270
424192992710,14cyclictest500218-21awk10:50:010
424205992620,4cyclictest436311-21kworker/u8:1+events_unbound07:48:113
424205992620,3cyclictest0-21swapper/312:35:163
424205992620,3cyclictest0-21swapper/307:15:183
424205992619,4cyclictest0-21swapper/309:55:173
424205992616,7cyclictest1-21systemd09:48:323
424205992616,6cyclictest477636-21grep09:40:253
424205992610,13cyclictest391ktimers/309:20:003
42420199269,10cyclictest131rcu_preempt09:18:512
42420199268,10cyclictest32-21ksoftirqd/208:36:092
42420199267,6cyclictest32-21ksoftirqd/212:25:002
42420199265,8cyclictest32-21ksoftirqd/209:35:132
42420199263,9cyclictest32-21ksoftirqd/210:30:142
42420199263,6cyclictest32-21ksoftirqd/210:10:202
42420199261,7cyclictest32-21ksoftirqd/208:19:492
424201992616,4cyclictest131rcu_preempt11:35:232
42419299269,14cyclictest485348-21cat10:05:170
42419299269,14cyclictest485348-21cat10:05:160
424192992620,3cyclictest0-21swapper/012:20:150
424192992619,4cyclictest13850irq/36-mmc112:00:000
424192992619,4cyclictest13550irq/42-30be0000.ethernet09:40:000
424192992618,4cyclictest0-21swapper/007:30:170
424192992618,4cyclictest0-21swapper/007:25:260
424192992616,7cyclictest483136-21sh10:00:000
42419299261,3cyclictest478272-21apt-get09:45:150
42419299261,22cyclictest497142-21df10:40:150
42419299260,5cyclictest0-21swapper/010:35:120
424205992516,6cyclictest430300-21grep07:25:163
424205992516,6cyclictest0-21swapper/310:45:213
424205992514,8cyclictest505144-21seq11:00:263
424205992513,8cyclictest441789-21idleruntime-cro08:00:003
42420199256,4cyclictest131rcu_preempt09:45:132
42420199255,6cyclictest32-21ksoftirqd/212:10:212
424201992517,5cyclictest0-21swapper/211:45:242
424196992513,8cyclictest512151-21grep11:20:241
424192992518,4cyclictest13550irq/42-30be0000.ethernet10:20:010
424192992516,6cyclictest121ktimers/011:40:010
424192992516,5cyclictest0-21swapper/009:40:260
424192992513,9cyclictest463061-21cut09:00:150
42419299251,20cyclictest0-21swapper/008:25:120
424205992419,3cyclictest0-21swapper/307:45:003
424205992419,3cyclictest0-21swapper/307:45:003
424205992418,3cyclictest0-21swapper/309:35:273
424205992418,3cyclictest0-21swapper/307:50:183
424205992418,3cyclictest0-21swapper/307:35:253
424205992417,4cyclictest0-21swapper/311:50:233
424205992417,4cyclictest0-21swapper/307:10:273
424205992415,6cyclictest494048-21cat10:30:173
424205992415,6cyclictest0-21swapper/310:25:013
424205992414,7cyclictest514435-21sed11:30:003
424205992414,7cyclictest453191-21which08:30:223
424192992420,2cyclictest13550irq/42-30be0000.ethernet07:20:140
424192992418,3cyclictest13850irq/36-mmc108:35:010
424192992416,4cyclictest0-21swapper/012:15:170
42419299241,19cyclictest0-21swapper/012:25:090
42419299241,19cyclictest0-21swapper/009:14:190
42419299240,20cyclictest0-21swapper/010:26:250
424205992317,3cyclictest0-21swapper/311:24:593
424205992317,3cyclictest0-21swapper/310:25:253
424205992317,3cyclictest0-21swapper/309:10:253
424205992316,4cyclictest428913-21ntpq07:20:213
424205992315,5cyclictest506153-21sshd11:05:163
424205992315,5cyclictest0-21swapper/312:20:003
424205992315,5cyclictest0-21swapper/312:00:183
424192992318,3cyclictest13550irq/42-30be0000.ethernet09:30:160
424192992315,6cyclictest424604-21ls07:10:170
424192992315,5cyclictest0-21swapper/012:30:270
42419299231,19cyclictest629-21snmpd11:29:220
42419299231,18cyclictest0-21swapper/012:04:260
42419299231,18cyclictest0-21swapper/011:42:560
42419299230,3cyclictest5070792sleep011:05:410
424205992216,3cyclictest0-21swapper/311:40:253
424205992216,3cyclictest0-21swapper/311:15:223
424205992213,6cyclictest0-21swapper/309:50:223
424192992217,3cyclictest13550irq/42-30be0000.ethernet10:10:160
424192992216,3cyclictest0-21swapper/011:00:250
424192992214,6cyclictest481268-21kworker/u8:2+events_unbound09:53:340
42419299221,3cyclictest0-21swapper/007:53:460
424192992212,6cyclictest0-21swapper/009:25:270
424205992115,3cyclictest0-21swapper/310:55:273
424205992114,5cyclictest479542-21kworker/u8:1+events_unbound10:02:413
424205992113,5cyclictest456760-21wc08:40:253
424205992113,5cyclictest456760-21wc08:40:253
424205992011,6cyclictest432806-21grep07:30:263
42420599201,12cyclictest645-21runrttasks11:49:303
424196991812,3cyclictest0-21swapper/107:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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