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2026-06-28 - 23:17

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 Jun 28, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
370362995541,10cyclictest311ktimers/211:40:122
370362995037,9cyclictest415663-21sendmail09:20:002
370357994940,6cyclictest208-21systemd-logind09:10:201
370362994835,9cyclictest311ktimers/211:25:112
370357994840,5cyclictest1-21systemd11:15:471
370365994532,9cyclictest391ktimers/311:15:113
370365994335,4cyclictest429508-21munin-plugin-st10:00:013
370357994335,5cyclictest231ktimers/110:25:131
370357994232,6cyclictest451633-21grep11:00:251
370353994235,4cyclictest458454-21unixbench_multi11:20:240
370365994129,8cyclictest436526-21cron10:20:003
370365994128,8cyclictest471089-21sendmail12:00:003
370362994131,7cyclictest413515-21grep09:10:272
370357994132,6cyclictest1-21systemd09:15:211
370357994131,7cyclictest406660-21grep08:50:231
370357994113,17cyclictest392242-21perl08:10:171
370362994029,7cyclictest0-21swapper/207:15:012
370362994029,7cyclictest0-21swapper/207:15:012
37035399401,10cyclictest11-21ksoftirqd/007:25:140
370362993933,4cyclictest457570-21kworker/u8:2+events_unbound11:24:422
370353993932,4cyclictest408821-21cron09:00:010
370365993830,4cyclictest0-21swapper/307:25:273
370357993828,6cyclictest0-21swapper/107:45:251
370357993826,9cyclictest208-21systemd-logind09:00:171
370365993728,5cyclictest0-21swapper/308:30:183
370365993725,6cyclictest0-21swapper/310:10:343
370362993730,3cyclictest0-21swapper/210:20:012
370362993728,4cyclictest0-21swapper/210:00:262
370353993728,6cyclictest425422-21unixbench_multi09:45:250
370353993728,6cyclictest425422-21unixbench_multi09:45:240
370365993626,6cyclictest0-21swapper/310:45:253
370362993626,6cyclictest429047-21grep09:55:262
370362993625,4cyclictest131rcu_preempt08:50:232
37035399365,19cyclictest131rcu_preempt08:30:240
370353993630,4cyclictest431145-21kworker/u8:1+events_unbound10:15:370
370353993628,6cyclictest450049-21kworker/u8:0+events_unbound11:00:460
370365993526,6cyclictest390066-21sh08:05:013
370362993521,8cyclictest131rcu_preempt10:50:112
370362993520,7cyclictest131rcu_preempt12:35:172
370357993527,5cyclictest0-21swapper/112:20:001
370357993527,4cyclictest0-21swapper/109:50:001
370357993527,4cyclictest0-21swapper/109:49:591
370357993527,4cyclictest0-21swapper/107:10:171
370357993527,4cyclictest0-21swapper/107:10:161
370357993526,6cyclictest0-21swapper/107:20:011
370357993525,6cyclictest0-21swapper/108:35:311
370353993527,4cyclictest0-21swapper/012:15:240
370353993524,7cyclictest0-21swapper/011:10:260
370353993524,7cyclictest0-21swapper/009:15:010
370353993524,6cyclictest0-21swapper/008:10:250
370365993427,3cyclictest0-21swapper/311:55:003
370365993427,3cyclictest0-21swapper/307:20:153
370365993423,7cyclictest0-21swapper/310:45:003
370362993426,4cyclictest0-21swapper/208:05:002
370362993425,6cyclictest311ktimers/207:40:272
370362993423,7cyclictest0-21swapper/210:15:012
370362993419,4cyclictest131rcu_preempt09:25:172
370362993418,5cyclictest131rcu_preempt08:40:172
370362993417,9cyclictest131rcu_preempt11:50:122
370362993414,5cyclictest131rcu_preempt11:45:222
37035799349,4cyclictest4408642gzip10:30:231
370357993411,6cyclictest24-21ksoftirqd/108:55:151
370353993427,4cyclictest0-21swapper/009:20:150
370353993425,4cyclictest0-21swapper/010:49:590
370353993424,4cyclictest474442-21kworker/u8:3+events_unbound12:11:010
370353993421,4cyclictest131rcu_preempt07:50:010
37035399341,8cyclictest11-21ksoftirqd/008:40:130
37035399341,25cyclictest131rcu_preempt11:08:590
370365993325,4cyclictest0-21swapper/308:10:263
37036299334,17cyclictest32-21ksoftirqd/208:10:212
370362993326,4cyclictest0-21swapper/212:25:262
370362993325,4cyclictest0-21swapper/211:55:142
370362993322,7cyclictest0-21swapper/211:40:002
370362993318,5cyclictest131rcu_preempt07:24:052
370362993318,5cyclictest131rcu_preempt07:15:222
370362993318,10cyclictest0-21swapper/208:35:302
370362993317,10cyclictest131rcu_preempt09:22:102
37035799338,6cyclictest24-21ksoftirqd/108:35:001
37035799338,13cyclictest24-21ksoftirqd/107:50:161
370357993326,4cyclictest0-21swapper/108:25:011
370357993323,7cyclictest430773-21sed10:00:261
370353993327,4cyclictest379373-21kworker/u8:0+events_unbound07:35:000
370353993324,5cyclictest208-21systemd-logind12:31:030
370353993316,4cyclictest131rcu_preempt07:55:220
370365993223,6cyclictest396425-21unixbench_multi08:20:253
370365993223,5cyclictest0-21swapper/309:05:253
370362993224,4cyclictest0-21swapper/207:55:152
370362993220,5cyclictest131rcu_preempt12:08:432
370362993219,5cyclictest131rcu_preempt08:48:552
370362993217,5cyclictest131rcu_preempt11:11:002
370362993216,5cyclictest389804-21kworker/u8:1+events_unbound08:08:512
370362993215,5cyclictest131rcu_preempt09:45:162
370362993215,5cyclictest131rcu_preempt09:45:162
370362993210,14cyclictest0-21swapper/207:25:252
37035799329,7cyclictest24-21ksoftirqd/112:25:011
370357993225,4cyclictest0-21swapper/108:25:161
370357993225,4cyclictest0-21swapper/108:25:151
370357993222,7cyclictest460147-21grep11:25:251
370357993222,6cyclictest0-21swapper/109:20:231
370357993220,8cyclictest394707-21grep08:15:251
37035399327,14cyclictest11-21ksoftirqd/012:35:200
370353993226,3cyclictest372154-21munin-node07:15:010
370353993226,3cyclictest372154-21munin-node07:15:010
370353993221,4cyclictest423984-21kworker/u8:0+events_unbound10:00:330
370353993215,5cyclictest131rcu_preempt11:15:140
370353993210,5cyclictest131rcu_preempt10:30:010
370365993123,4cyclictest0-21swapper/310:25:173
370362993124,4cyclictest0-21swapper/210:20:252
370362993122,6cyclictest311ktimers/207:50:182
370362993119,4cyclictest131rcu_preempt10:42:212
370362993118,4cyclictest131rcu_preempt09:35:122
370362993117,8cyclictest131rcu_preempt08:19:012
370362993116,5cyclictest131rcu_preempt09:50:222
370362993115,4cyclictest131rcu_preempt12:20:142
370362993114,5cyclictest131rcu_preempt10:25:212
370362993110,10cyclictest131rcu_preempt10:35:162
37035799317,6cyclictest24-21ksoftirqd/107:35:231
37035799314,7cyclictest24-21ksoftirqd/109:35:181
370357993124,4cyclictest0-21swapper/111:55:241
370357993121,6cyclictest0-21swapper/112:35:011
370357993120,7cyclictest0-21swapper/110:55:231
370357993113,4cyclictest131rcu_preempt10:10:001
370353993124,3cyclictest0-21swapper/010:20:150
370353993123,4cyclictest0-21swapper/009:05:250
370353993120,6cyclictest0-21swapper/008:45:270
370353993118,5cyclictest131rcu_preempt08:25:260
370353993118,5cyclictest131rcu_preempt08:25:260
370353993113,6cyclictest11-21ksoftirqd/009:15:250
370353993113,5cyclictest131rcu_preempt08:00:220
370353993111,12cyclictest11-21ksoftirqd/011:50:140
370365993021,5cyclictest0-21swapper/307:50:253
37036299308,4cyclictest311ktimers/209:40:162
37036299308,4cyclictest311ktimers/209:40:152
37036299305,6cyclictest32-21ksoftirqd/211:10:012
37036299303,6cyclictest32-21ksoftirqd/207:35:242
370362993022,4cyclictest311ktimers/210:59:302
370362993021,6cyclictest311ktimers/209:30:132
370362993020,6cyclictest0-21swapper/209:05:262
370362993019,8cyclictest311ktimers/210:05:212
370362993016,8cyclictest131rcu_preempt12:03:222
370362993016,8cyclictest131rcu_preempt12:03:222
370362993015,4cyclictest131rcu_preempt08:30:222
370362993014,10cyclictest131rcu_preempt08:22:582
370362993013,5cyclictest131rcu_preempt10:30:122
370362993012,4cyclictest131rcu_preempt12:35:012
370362993011,5cyclictest131rcu_preempt09:00:012
370362993011,11cyclictest131rcu_preempt11:15:112
370362993010,10cyclictest32-21ksoftirqd/211:00:202
37035799306,6cyclictest24-21ksoftirqd/111:45:251
37035799303,14cyclictest0-21swapper/112:25:221
370357993020,7cyclictest472797-21awk12:05:001
370357993020,7cyclictest472797-21awk12:04:591
370357993020,7cyclictest231ktimers/111:10:001
370357993020,3cyclictest131rcu_preempt10:45:161
370357993019,7cyclictest231ktimers/110:20:011
370357993016,5cyclictest131rcu_preempt07:33:231
370357993014,9cyclictest131rcu_preempt09:55:041
370357993011,9cyclictest131rcu_preempt07:23:051
370357993010,4cyclictest131rcu_preempt10:50:201
370357993010,4cyclictest131rcu_preempt09:50:211
370357993010,12cyclictest131rcu_preempt08:45:231
37035399309,7cyclictest11-21ksoftirqd/011:40:000
37035399307,4cyclictest131rcu_preempt12:00:120
37035399307,4cyclictest131rcu_preempt12:00:120
370353993022,6cyclictest457570-21kworker/u8:2+events_unbound11:25:510
370353993019,6cyclictest0-21swapper/011:30:280
37035399301,3cyclictest371983-21apt-get07:15:050
370353993012,4cyclictest131rcu_preempt09:55:220
370353993011,11cyclictest11-21ksoftirqd/007:25:010
370353993010,11cyclictest11-21ksoftirqd/009:30:120
370365992921,4cyclictest0-21swapper/309:40:263
370365992921,4cyclictest0-21swapper/309:40:263
37036299294,12cyclictest32-21ksoftirqd/209:00:152
370362992921,6cyclictest311ktimers/211:30:232
370362992920,6cyclictest301rcuc/210:49:122
370362992919,7cyclictest311ktimers/207:35:002
370362992919,7cyclictest301rcuc/212:17:592
370362992919,7cyclictest301rcuc/207:45:402
370362992912,3cyclictest131rcu_preempt08:29:492
370362992912,3cyclictest131rcu_preempt08:29:482
370362992910,4cyclictest131rcu_preempt12:10:222
37035799299,5cyclictest131rcu_preempt10:35:241
37035799299,12cyclictest131rcu_preempt10:20:141
37035799298,6cyclictest24-21ksoftirqd/108:10:001
37035799298,6cyclictest24-21ksoftirqd/107:55:141
37035799294,6cyclictest24-21ksoftirqd/107:40:251
370357992923,3cyclictest0-21swapper/110:45:001
370357992921,4cyclictest0-21swapper/109:10:011
370357992919,7cyclictest0-21swapper/110:10:251
370357992916,9cyclictest0-21swapper/111:35:231
370357992916,6cyclictest403452-21kworker/u8:2+events_unbound08:42:451
370357992914,8cyclictest0-21swapper/107:29:571
370357992914,3cyclictest131rcu_preempt11:10:141
370357992911,4cyclictest131rcu_preempt12:35:201
37035399298,11cyclictest11-21ksoftirqd/010:30:400
37035399297,12cyclictest11-21ksoftirqd/008:35:230
37035399296,4cyclictest131rcu_preempt08:05:260
370353992922,3cyclictest0-21swapper/010:50:150
370353992919,8cyclictest151rcuc/010:35:570
370353992918,8cyclictest422470-21cron09:40:000
37035399291,17cyclictest445068-21cron10:44:590
37035399291,14cyclictest432117-21/usr/sbin/munin10:05:220
370353992910,6cyclictest11-21ksoftirqd/008:20:010
370365992820,6cyclictest427598-21cut09:54:593
370365992817,6cyclictest0-21swapper/308:25:263
370365992817,6cyclictest0-21swapper/308:25:263
370357992819,6cyclictest231ktimers/111:20:181
370357992819,6cyclictest231ktimers/109:30:131
37035799281,8cyclictest24-21ksoftirqd/111:55:011
370357992817,8cyclictest231ktimers/109:40:121
370357992817,8cyclictest231ktimers/109:40:111
370357992816,8cyclictest204-21dbus-daemon12:10:591
37035399287,13cyclictest11-21ksoftirqd/011:40:220
37035399286,12cyclictest131rcu_preempt10:55:560
370353992812,5cyclictest131rcu_preempt09:45:000
370353992812,5cyclictest131rcu_preempt09:45:000
370353992811,10cyclictest406919-21kworker/u8:2-events_freezable_power_08:53:270
370365992722,3cyclictest370347-21cyclictest10:00:123
370365992719,4cyclictest0-21swapper/308:50:233
370365992719,4cyclictest0-21swapper/307:15:003
370365992719,4cyclictest0-21swapper/307:15:003
37035799275,7cyclictest24-21ksoftirqd/111:30:131
37035799273,7cyclictest24-21ksoftirqd/108:00:241
370357992710,3cyclictest131rcu_preempt09:29:541
37035399278,4cyclictest131rcu_preempt07:40:210
37035399278,11cyclictest11-21ksoftirqd/009:30:010
37035399278,11cyclictest11-21ksoftirqd/008:20:200
370353992720,4cyclictest0-21swapper/009:50:250
37035399271,8cyclictest11-21ksoftirqd/009:00:130
370353992718,4cyclictest0-21swapper/010:15:000
370353992716,5cyclictest131rcu_preempt07:55:010
370353992715,8cyclictest13550irq/42-30be0000.ethernet11:55:110
370353992712,4cyclictest131rcu_preempt12:20:120
370353992712,4cyclictest131rcu_preempt12:05:180
370365992620,4cyclictest399989-21kworker/u8:0+events_unbound08:45:163
370365992620,4cyclictest363638-21kworker/u8:1+events_unbound07:55:063
370365992619,4cyclictest0-21swapper/311:10:263
370365992619,3cyclictest0-21swapper/311:00:163
370365992619,3cyclictest0-21swapper/310:50:223
37035799267,5cyclictest0-21swapper/112:05:221
37035399265,4cyclictest0-21swapper/011:45:150
37035399260,15cyclictest11-21ksoftirqd/012:30:010
370365992519,4cyclictest457570-21kworker/u8:2+events_unbound11:20:493
370365992517,4cyclictest0-21swapper/311:25:253
370365992517,4cyclictest0-21swapper/309:20:013
370365992517,4cyclictest0-21swapper/308:35:313
370365992516,7cyclictest425878-21cron09:50:003
370365992516,7cyclictest425878-21cron09:50:003
370365992516,6cyclictest443391-21modprobe10:40:003
370365992516,6cyclictest373166-21fschecks_count07:15:173
370365992516,6cyclictest0-21swapper/309:25:013
370365992516,5cyclictest380859-21grep07:35:253
370365992515,6cyclictest0-21swapper/311:00:013
370365992514,7cyclictest409277-21sshd09:00:173
370365992513,8cyclictest391ktimers/312:30:103
370353992511,10cyclictest11-21ksoftirqd/007:37:460
370365992418,3cyclictest0-21swapper/308:05:133
370365992415,6cyclictest0-21swapper/308:40:263
370365992413,7cyclictest465512-21grep11:40:243
370365992317,4cyclictest420518-21kworker/u8:1+events_unbound09:35:173
370365992316,4cyclictest0-21swapper/312:10:223
370365992316,3cyclictest0-21swapper/311:05:163
370365992315,5cyclictest384731-21cron07:50:013
37036599231,4cyclictest419071-21munin-run09:30:013
370365992314,6cyclictest391ktimers/310:05:263
370365992313,6cyclictest0-21swapper/312:05:003
370365992313,6cyclictest0-21swapper/312:05:003
370365992216,3cyclictest0-21swapper/309:30:173
370365992215,5cyclictest391ktimers/308:55:233
370365992215,3cyclictest0-21swapper/312:35:243
370365992214,6cyclictest478966-21switchtime12:20:223
370365992213,6cyclictest0-21swapper/312:05:263
370365992211,8cyclictest481307-21cron12:30:013
370365992116,2cyclictest0-21swapper/311:45:193
370365992015,3cyclictest597-21sshd10:30:263
370365992015,3cyclictest378296-21fschecks_count07:30:173
370365992013,4cyclictest462405-21sshd11:33:253
370365991914,3cyclictest464247-21sendmail11:40:003
370365991913,3cyclictest381786-21fschecks_time07:40:173
370365991912,5cyclictest391ktimers/309:10:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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