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2026-09-23 - 04:13

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 all highest latencies:
System rackbslot5s.osadl.org (updated Wed Sep 23, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14654995022,13cyclictest0-21swapper/223:25:162
14654995022,13cyclictest0-21swapper/223:25:162
14658994940,5cyclictest1-21systemd00:38:573
14645994826,16cyclictest0-21swapper/023:25:000
14645994639,4cyclictest49507-21unixbench_singl20:45:280
14654994438,4cyclictest75678-21kworker/u8:0+events_unbound22:06:292
14654994429,11cyclictest311ktimers/222:50:122
14650994433,7cyclictest62322-21apt-get21:25:141
14650994334,6cyclictest119820-21unixbench_multi00:10:271
14650994326,11cyclictest0-21swapper/100:05:121
14645994332,8cyclictest18596-21idleruntime-cro19:20:000
14645994331,8cyclictest121ktimers/019:40:130
14658994234,4cyclictest49502-21unixbench_singl20:45:283
14658994232,6cyclictest23704-21grep19:30:253
14654994135,4cyclictest114854-21kworker/u8:0+events_unbound00:06:532
14650994133,4cyclictest55492-21apt-get21:05:151
14650994133,4cyclictest55492-21apt-get21:05:151
14650994132,5cyclictest49512-21unixbench_singl20:45:281
14650994118,14cyclictest75223-21sed22:00:271
14650994118,13cyclictest0-21swapper/120:50:131
14645994134,4cyclictest53350-21sendmail21:00:010
14650994033,4cyclictest39490-21sendmail20:20:001
14650994032,4cyclictest89612-21apt-get22:45:121
14650994032,4cyclictest60623-21apt-get21:20:151
14650994029,8cyclictest113288-21cron23:53:011
14650994029,6cyclictest0-21swapper/123:05:021
14658993930,6cyclictest101062-21unixbench_multi23:15:253
14650993930,6cyclictest53-21kcompactd021:36:521
14650993929,7cyclictest79013-21sshd22:13:391
14650993928,7cyclictest35050-21/usr/sbin/munin20:05:201
14650993927,10cyclictest94307-21cron22:58:001
14650993926,8cyclictest14927-21/usr/sbin/munin19:10:161
14650993914,11cyclictest645-21runrttasks19:15:301
14654993827,6cyclictest0-21swapper/220:05:252
14654993824,9cyclictest311ktimers/222:15:122
14650993832,3cyclictest81094-21apt-get22:20:181
14650993832,3cyclictest57201-21apt-get21:10:171
14650993829,6cyclictest53-21kcompactd022:36:251
14650993829,6cyclictest53-21kcompactd019:52:011
14650993828,7cyclictest99686-21sshd23:13:381
14650993828,7cyclictest53-21kcompactd019:22:321
14650993828,7cyclictest53-21kcompactd019:22:321
14650993827,9cyclictest31903-21/usr/sbin/munin19:55:241
14650993827,7cyclictest37779-21grep20:15:001
14650993826,10cyclictest53-21kcompactd021:51:041
14650993825,9cyclictest231ktimers/100:30:111
14650993825,10cyclictest22660-21apt-get19:30:131
14645993827,7cyclictest101504-21cron23:20:000
14654993729,4cyclictest0-21swapper/223:35:002
14654993729,4cyclictest0-21swapper/219:55:012
14650993728,6cyclictest53-21kcompactd021:55:591
14650993728,6cyclictest53-21kcompactd020:58:061
14650993728,6cyclictest53-21kcompactd020:42:481
14650993728,4cyclictest0-21swapper/123:25:161
14650993728,4cyclictest0-21swapper/123:25:161
14650993727,7cyclictest67547-21/usr/sbin/munin21:40:131
14650993727,5cyclictest0-21swapper/123:46:481
14650993726,6cyclictest53-21kcompactd020:01:181
14650993724,8cyclictest438-21cron21:35:011
14650993722,11cyclictest113969-21/usr/sbin/munin23:55:171
14650993722,10cyclictest88039-21/usr/sbin/munin22:40:141
14645993724,9cyclictest121ktimers/022:20:190
14658993628,4cyclictest0-21swapper/320:50:263
14650993630,3cyclictest24363-21apt-get19:35:161
14650993628,4cyclictest0-21swapper/121:46:241
14650993627,6cyclictest53-21kcompactd019:46:011
14650993627,6cyclictest53-21kcompactd000:26:101
14650993627,6cyclictest53-21kcompactd000:03:141
14650993626,7cyclictest53-21kcompactd022:17:511
14650993626,7cyclictest46251-21cron20:37:001
14650993626,6cyclictest26880-21switchtime19:40:251
14650993625,8cyclictest0-21swapper/120:30:131
14650993623,10cyclictest102386-21/usr/sbin/munin23:20:221
14650993620,11cyclictest76146-21/usr/sbin/munin22:05:161
14645993629,4cyclictest115184-21sendmail00:00:000
14645993627,4cyclictest0-21swapper/022:26:320
14658993529,3cyclictest0-21swapper/321:00:013
14654993520,9cyclictest131rcu_preempt22:35:162
14654993516,12cyclictest131rcu_preempt20:55:252
14654993513,8cyclictest25044-21gzip19:35:252
14650993522,10cyclictest41683-21grep20:25:131
1464599356,6cyclictest131rcu_preempt21:10:170
14645993526,5cyclictest125200-21grep00:25:260
14645993523,8cyclictest94478-21auditctl23:00:000
14658993426,4cyclictest0-21swapper/321:10:293
14654993427,4cyclictest0-21swapper/223:50:002
14654993423,6cyclictest0-21swapper/223:10:002
14654993415,11cyclictest131rcu_preempt22:25:212
14654993414,9cyclictest0-21swapper/222:55:262
14650993428,3cyclictest53789-21apt-get21:00:141
14650993428,3cyclictest53789-21apt-get21:00:131
14650993427,4cyclictest98112-21kthreadd23:10:001
14650993426,4cyclictest0-21swapper/123:35:251
14650993425,7cyclictest121092-21ntp_states00:15:231
14650993424,8cyclictest85041-21/usr/sbin/munin22:30:211
14650993424,8cyclictest85041-21/usr/sbin/munin22:30:211
14650993424,7cyclictest101135-21sshd23:15:381
14650993423,7cyclictest21353-21sed19:25:191
14650993420,11cyclictest59214-21if_eth121:15:201
14650993420,11cyclictest106087-21timerwakeupswit23:30:221
14650993419,12cyclictest92010-21run-parts22:50:231
1464599344,6cyclictest131rcu_preempt22:30:140
1464599344,6cyclictest131rcu_preempt22:30:140
14645993427,4cyclictest129070-21sh00:40:000
14658993324,5cyclictest0-21swapper/320:35:233
14658993323,7cyclictest83810-21unixbench_multi22:25:253
14658993322,7cyclictest0-21swapper/322:00:013
14654993325,4cyclictest0-21swapper/223:20:002
14654993324,6cyclictest123923-21auditctl00:25:002
14654993323,7cyclictest128606-21grep00:35:262
14654993316,3cyclictest131rcu_preempt21:35:172
14654993316,10cyclictest131rcu_preempt22:45:142
14650993322,7cyclictest39720-21/usr/sbin/munin20:20:121
14650993321,9cyclictest122931-21sed00:20:191
14645993327,3cyclictest0-21swapper/019:50:020
14645993325,4cyclictest0-21swapper/022:20:000
14658993224,4cyclictest0-21swapper/320:10:003
14658993224,4cyclictest0-21swapper/300:00:273
1465499325,8cyclictest32-21ksoftirqd/221:10:202
14654993225,3cyclictest68916-21sh21:45:002
14654993223,4cyclictest0-21swapper/222:15:002
14654993222,6cyclictest18160-21grep19:15:262
14654993222,6cyclictest0-21swapper/221:10:002
14654993222,6cyclictest0-21swapper/221:10:002
14654993221,7cyclictest0-21swapper/220:25:012
14654993221,3cyclictest131rcu_preempt21:30:222
14654993220,6cyclictest131rcu_preempt21:57:132
14654993217,9cyclictest131rcu_preempt21:51:272
1464599324,4cyclictest131rcu_preempt21:00:140
1464599324,4cyclictest131rcu_preempt21:00:130
14645993225,5cyclictest24936-21kworker/u8:2+events_unbound20:31:090
14645993224,4cyclictest0-21swapper/021:30:020
14645993223,6cyclictest0-21swapper/022:55:010
14658993124,3cyclictest0-21swapper/319:10:273
14658993123,4cyclictest20723-21latency_hist19:25:023
14658993123,4cyclictest20723-21latency_hist19:25:013
14658993122,4cyclictest25380-21grep19:35:273
1465499317,7cyclictest32-21ksoftirqd/220:45:002
1465499316,9cyclictest32-21ksoftirqd/200:35:002
1465499316,8cyclictest32-21ksoftirqd/223:45:022
1465499316,7cyclictest32-21ksoftirqd/220:50:262
14654993121,7cyclictest311ktimers/222:20:252
14654993120,8cyclictest311ktimers/221:45:152
14654993117,3cyclictest131rcu_preempt19:30:022
14654993116,3cyclictest131rcu_preempt21:27:542
14654993115,9cyclictest131rcu_preempt19:40:132
14654993114,9cyclictest131rcu_preempt19:46:362
14645993121,6cyclictest0-21swapper/021:15:270
1464599311,5cyclictest131rcu_preempt20:00:120
14658993023,4cyclictest0-21swapper/323:35:263
14658993022,4cyclictest0-21swapper/319:40:263
1465899301,7cyclictest55841-21cut21:05:213
1465899301,7cyclictest55841-21cut21:05:203
14654993020,7cyclictest311ktimers/220:10:232
14654993020,4cyclictest131rcu_preempt19:30:092
14654993015,3cyclictest131rcu_preempt21:00:232
14654993015,3cyclictest131rcu_preempt21:00:232
14654993014,10cyclictest116606-21kworker/u8:2-events_power_efficient00:10:272
14654993011,4cyclictest0-21swapper/223:21:012
14654993010,4cyclictest131rcu_preempt19:20:042
14654993010,4cyclictest131rcu_preempt19:20:042
14645993023,4cyclictest0-21swapper/021:30:240
14645993022,6cyclictest66885-21kworker/u8:3+events_unbound21:42:080
14645993022,6cyclictest24936-21kworker/u8:2+events_unbound20:11:070
14658992921,4cyclictest0-21swapper/321:35:253
14658992919,7cyclictest118110-21grep00:05:243
1465499299,3cyclictest0-21swapper/223:39:102
1465499298,6cyclictest32-21ksoftirqd/222:40:202
1465499298,5cyclictest32-21ksoftirqd/219:15:012
1465499298,3cyclictest0-21swapper/200:28:312
1465499297,8cyclictest32-21ksoftirqd/220:25:192
1465499296,8cyclictest32-21ksoftirqd/220:00:252
1465499296,6cyclictest32-21ksoftirqd/200:15:242
1465499295,6cyclictest32-21ksoftirqd/220:35:152
1465499293,8cyclictest32-21ksoftirqd/222:30:252
1465499293,8cyclictest32-21ksoftirqd/222:30:242
14654992922,4cyclictest0-21swapper/220:30:262
14654992920,6cyclictest311ktimers/221:20:212
14654992919,7cyclictest311ktimers/223:00:242
14654992917,8cyclictest311ktimers/223:10:312
14654992915,9cyclictest131rcu_preempt20:16:062
14654992913,4cyclictest0-21swapper/222:00:222
14645992920,6cyclictest20046-21grep19:20:260
14645992920,6cyclictest20046-21grep19:20:250
14658992818,6cyclictest0-21swapper/322:20:213
14658992816,8cyclictest110447-21tune2fs23:45:173
1465499286,7cyclictest32-21ksoftirqd/223:55:162
1465499285,7cyclictest32-21ksoftirqd/200:00:202
1465499284,11cyclictest32-21ksoftirqd/219:55:492
1465499282,9cyclictest32-21ksoftirqd/220:45:152
14654992812,9cyclictest131rcu_preempt23:50:132
14654992811,4cyclictest131rcu_preempt21:15:052
1464599282,4cyclictest131rcu_preempt23:10:180
14645992822,4cyclictest45171-21fschecks_count20:35:140
14645992821,4cyclictest0-21swapper/000:20:250
14645992812,14cyclictest121ktimers/020:25:180
14658992721,4cyclictest0-21swapper/323:25:123
14658992721,4cyclictest0-21swapper/323:25:123
14658992720,5cyclictest24936-21kworker/u8:2+events_unbound20:40:223
14658992720,3cyclictest0-21swapper/322:05:253
14658992719,4cyclictest0-21swapper/322:40:233
14658992719,4cyclictest0-21swapper/322:15:153
14658992719,4cyclictest0-21swapper/321:30:243
14645992721,4cyclictest84033-21kworker/u8:0+events_unbound22:46:370
14645992720,4cyclictest13850irq/36-mmc123:40:000
14645992719,4cyclictest0-21swapper/021:55:010
1464599271,5cyclictest131rcu_preempt21:05:150
1464599271,5cyclictest131rcu_preempt21:05:150
14658992620,3cyclictest0-21swapper/323:40:143
14658992618,5cyclictest0-21swapper/323:50:163
14658992616,6cyclictest37290-21grep20:10:253
14658992615,7cyclictest1-21systemd00:21:543
14658992615,7cyclictest0-21swapper/300:20:003
1464599265,7cyclictest131rcu_preempt00:00:130
14645992622,2cyclictest13550irq/42-30be0000.ethernet21:35:190
14645992619,4cyclictest13550irq/42-30be0000.ethernet23:10:000
14645992613,10cyclictest121ktimers/023:25:120
14645992613,10cyclictest121ktimers/023:25:120
14658992518,3cyclictest0-21swapper/322:55:243
14658992518,3cyclictest0-21swapper/321:45:013
14658992518,3cyclictest0-21swapper/319:45:233
14658992517,5cyclictest0-21swapper/321:20:003
14658992517,4cyclictest0-21swapper/321:00:163
14658992517,4cyclictest0-21swapper/321:00:163
14658992516,6cyclictest105322-21/usr/sbin/munin23:30:143
14645992519,4cyclictest114854-21kworker/u8:0+events_unbound00:11:540
14645992518,4cyclictest13550irq/42-30be0000.ethernet20:00:010
14645992517,5cyclictest0-21swapper/021:55:250
14645992516,5cyclictest0-21swapper/020:06:100
1464599250,6cyclictest0-21swapper/019:50:140
14658992418,3cyclictest0-21swapper/320:25:243
14658992417,4cyclictest0-21swapper/300:10:183
14658992416,5cyclictest391ktimers/321:25:273
14658992416,4cyclictest0-21swapper/323:15:013
14658992416,4cyclictest0-21swapper/300:25:253
14658992413,8cyclictest101934-21cut23:20:153
14645992419,3cyclictest13550irq/42-30be0000.ethernet21:45:190
14645992418,3cyclictest0-21swapper/019:25:160
14645992418,3cyclictest0-21swapper/019:11:000
14645992417,3cyclictest0-21swapper/023:46:250
14645992417,3cyclictest0-21swapper/019:39:170
14645992416,4cyclictest0-21swapper/022:35:190
14645992415,6cyclictest109139-21ntpq23:40:190
1464599241,19cyclictest0-21swapper/000:33:590
1464599240,20cyclictest0-21swapper/023:30:510
1464599240,20cyclictest0-21swapper/022:44:110
14658992317,3cyclictest0-21swapper/322:35:113
14658992316,3cyclictest0-21swapper/322:00:273
14658992315,5cyclictest0-21swapper/320:15:263
1464599233,4cyclictest131rcu_preempt20:40:140
14645992317,4cyclictest94241-21kworker/u8:1+events_unbound23:01:420
14645992316,5cyclictest38157-21fschecks_count20:15:160
14645992316,5cyclictest121ktimers/022:00:200
14645992315,6cyclictest121ktimers/000:05:250
14645992315,4cyclictest60833-21fschecks_time21:20:180
1464599231,18cyclictest0-21swapper/022:10:140
1464599230,19cyclictest0-21swapper/022:09:090
1464599230,19cyclictest0-21swapper/019:33:200
14658992217,2cyclictest0-21swapper/319:55:243
14658992216,3cyclictest0-21swapper/322:30:153
14658992216,3cyclictest0-21swapper/322:30:153
14658992216,3cyclictest0-21swapper/321:45:243
14658992215,5cyclictest0-21swapper/323:00:233
14658992211,8cyclictest90508-21cat22:45:263
14658992211,8cyclictest17230-21diskstats19:15:153
14645992215,3cyclictest0-21swapper/020:50:090
1464599221,19cyclictest0-21swapper/000:15:230
1465899212,16cyclictest629-21snmpd19:25:123
14658992115,3cyclictest0-21swapper/322:50:163
14658992115,3cyclictest0-21swapper/322:10:313
14658992110,8cyclictest204-21dbus-daemon00:31:573
14658992015,3cyclictest0-21swapper/320:20:173
14658992014,4cyclictest391ktimers/323:55:133
14658992012,5cyclictest391ktimers/321:50:133
14658992011,6cyclictest44403-21/usr/sbin/munin20:30:263
14658992011,5cyclictest0-21swapper/320:00:163
14658991913,4cyclictest391ktimers/323:05:143
14658991913,3cyclictest0-21swapper/319:50:183
14658991812,4cyclictest391ktimers/321:20:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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