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2026-06-10 - 08:32

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 376 highest latencies:
System rackbslot5s.osadl.org (updated Wed Jun 10, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1379449995730,23cyclictest1417922-21sendmail21:00:002
1379440995748,6cyclictest1443037-21grep22:10:260
1379440995748,6cyclictest1443037-21grep22:10:260
1379444995347,4cyclictest1469158-21kworker/u8:1+events_unbound23:27:201
1379449995220,6cyclictest0-21swapper/200:15:312
1379449994739,4cyclictest1421338-21idleruntime-cro21:10:012
1379452994431,10cyclictest391ktimers/322:55:133
1379452994331,8cyclictest1474764-21apt-config23:45:003
1379444994131,6cyclictest1491482-21grep00:30:251
1379440994133,4cyclictest1472924-21sh23:40:000
1379440994032,4cyclictest1450556-21munin-plugin-st22:35:000
1379440994031,6cyclictest0-21swapper/021:20:010
1379449993933,4cyclictest645-21runrttasks22:35:112
137944499399,3cyclictest131rcu_preempt19:30:121
137944099393,4cyclictest131rcu_preempt20:05:110
1379452993829,5cyclictest1407484-21munin-run20:30:003
1379449993827,8cyclictest311ktimers/221:20:132
137944099385,5cyclictest131rcu_preempt00:05:160
137944499374,4cyclictest131rcu_preempt22:00:121
1379444993730,4cyclictest0-21swapper/119:15:161
1379440993729,5cyclictest1448853-21basename22:30:000
1379440993727,7cyclictest1445233-21sendmail22:20:000
1379440993727,7cyclictest1445233-21sendmail22:20:000
1379452993630,3cyclictest0-21swapper/323:15:003
1379452993627,4cyclictest0-21swapper/320:32:083
1379449993628,5cyclictest1448836-21cron22:30:002
1379449993625,7cyclictest0-21swapper/220:45:162
1379449993625,7cyclictest0-21swapper/220:45:162
1379449993623,8cyclictest0-21swapper/223:15:002
1379444993627,6cyclictest0-21swapper/121:25:011
137944099361,7cyclictest131rcu_preempt22:00:110
1379449993528,4cyclictest0-21swapper/223:30:002
1379449993524,8cyclictest311ktimers/223:05:132
1379444993527,5cyclictest0-21swapper/100:05:001
1379444993526,6cyclictest0-21swapper/119:15:011
137944499352,3cyclictest131rcu_preempt22:10:121
137944499352,3cyclictest131rcu_preempt22:10:121
1379440993528,3cyclictest1431582-21sendmail21:40:000
1379440993523,6cyclictest0-21swapper/023:20:000
1379440993523,6cyclictest0-21swapper/023:20:000
1379440993522,9cyclictest204-21dbus-daemon21:52:140
137944099351,5cyclictest131rcu_preempt00:00:120
1379452993426,4cyclictest0-21swapper/320:47:103
1379452993426,4cyclictest0-21swapper/320:47:103
1379452993424,6cyclictest1393166-21grep19:45:253
1379444993427,4cyclictest1472931-21munin-run23:40:001
1379444993427,4cyclictest1397232-21latency_hist20:00:011
1379444993425,4cyclictest0-21swapper/121:35:161
1379440993425,6cyclictest1404052-21sh20:20:000
137944099341,29cyclictest0-21swapper/023:25:120
1379452993325,4cyclictest0-21swapper/322:15:153
1379452993325,4cyclictest0-21swapper/322:15:153
1379449993325,4cyclictest0-21swapper/222:50:242
1379449993325,4cyclictest0-21swapper/200:35:212
1379449993323,6cyclictest0-21swapper/220:15:232
1379444993326,4cyclictest0-21swapper/120:45:251
1379444993326,4cyclictest0-21swapper/120:45:251
1379444993324,7cyclictest1414143-21kworker/u8:0+events_unbound21:05:151
1379444993323,7cyclictest0-21swapper/120:10:261
137944099335,5cyclictest131rcu_preempt21:25:120
1379440993325,6cyclictest1460743-21kworker/u8:2+events_unbound23:07:190
1379440993323,6cyclictest0-21swapper/022:55:000
1379440993322,8cyclictest1397657-21tune2fs20:00:170
137945299328,4cyclictest14567942grep22:50:223
1379452993226,3cyclictest1412374-21unixbench_singl20:40:263
1379452993218,12cyclictest1379433-21cyclictest22:20:123
137944499324,4cyclictest131rcu_preempt00:05:161
1379444993225,4cyclictest1395539-21munin-plugin-st19:55:011
1379444993224,4cyclictest0-21swapper/120:20:261
1379444993223,5cyclictest1408980-21grep20:30:271
1379444993221,7cyclictest1486341-21grep00:15:301
1379440993225,4cyclictest13550irq/42-30be0000.ethernet22:40:250
1379440993224,4cyclictest0-21swapper/023:55:010
1379440993223,6cyclictest1455932-21taskset22:50:010
137944099321,4cyclictest131rcu_preempt20:20:120
1379452993121,7cyclictest1479489-21grep23:55:273
1379452993121,7cyclictest0-21swapper/319:45:013
1379452993121,5cyclictest1450935-21grep22:35:153
1379449993124,4cyclictest0-21swapper/222:40:252
1379449993124,4cyclictest0-21swapper/221:50:252
1379449993123,4cyclictest0-21swapper/219:31:592
1379449993121,6cyclictest0-21swapper/221:15:282
137944499318,4cyclictest131rcu_preempt22:30:001
1379444993122,5cyclictest1474659-21munin-plugin-st23:45:001
1379444993122,5cyclictest0-21swapper/121:40:261
1379444993119,8cyclictest1484653-21grep00:10:251
1379440993121,6cyclictest0-21swapper/021:00:250
1379440993121,6cyclictest0-21swapper/019:50:270
1379440993120,7cyclictest0-21swapper/000:15:300
137944099311,27cyclictest1393617-21apt19:50:000
1379452993022,4cyclictest0-21swapper/321:20:153
1379452993022,4cyclictest0-21swapper/320:50:263
1379452993019,9cyclictest391ktimers/323:15:143
1379452993019,9cyclictest391ktimers/323:15:143
1379452993018,9cyclictest1379433-21cyclictest22:45:133
1379449993024,3cyclictest0-21swapper/200:25:262
1379449993023,4cyclictest0-21swapper/219:45:162
1379449993020,7cyclictest1438393-21cut22:00:002
1379444993023,4cyclictest1393618-21sh19:50:001
1379444993023,4cyclictest0-21swapper/121:55:001
1379444993022,5cyclictest1441334-21tail22:05:271
1379444993020,7cyclictest1412375-21unixbench_singl20:40:261
137944099304,3cyclictest131rcu_preempt19:10:110
1379440993020,6cyclictest0-21swapper/000:10:250
1379452992924,3cyclictest1434976-21cron21:50:003
1379452992922,4cyclictest0-21swapper/319:55:253
1379452992921,4cyclictest0-21swapper/322:40:163
1379452992918,7cyclictest0-21swapper/320:00:273
1379449992921,4cyclictest0-21swapper/221:00:252
1379440992923,4cyclictest1383134-21kworker/u8:1+events_unbound19:21:580
1379440992922,5cyclictest1411860-21kworker/u8:2+events_unbound20:42:100
1379440992922,4cyclictest1459280-21kthreadd23:00:000
1379440992922,4cyclictest0-21swapper/019:30:250
1379452992821,4cyclictest0-21swapper/320:20:013
1379452992821,3cyclictest0-21swapper/323:35:263
1379452992820,4cyclictest0-21swapper/322:00:253
1379452992818,7cyclictest1437957-21unixbench_singl21:55:263
137945299281,24cyclictest1-21systemd00:07:243
1379449992822,3cyclictest0-21swapper/219:25:242
1379449992820,4cyclictest0-21swapper/223:20:172
1379449992820,4cyclictest0-21swapper/223:20:172
1379449992820,4cyclictest0-21swapper/219:20:262
1379444992819,6cyclictest1418347-21cut21:00:161
1379444992814,10cyclictest231ktimers/121:30:121
137944099286,10cyclictest11-21ksoftirqd/019:40:160
1379440992815,9cyclictest121ktimers/021:45:120
1379452992715,8cyclictest1-21systemd23:32:203
1379449992721,4cyclictest1428152-21cron21:30:012
1379449992720,3cyclictest0-21swapper/220:00:262
1379449992717,7cyclictest1416218-21basename20:55:002
1379449992716,8cyclictest1-21systemd21:42:132
1379444992719,5cyclictest0-21swapper/123:10:161
1379444992719,4cyclictest0-21swapper/122:45:161
1379444992719,4cyclictest0-21swapper/100:40:001
1379444992719,4cyclictest0-21swapper/100:20:261
1379444992717,8cyclictest1398017-21ntpq20:00:221
1379440992720,5cyclictest1422714-21kworker/u8:0+events_unbound21:14:410
1379440992710,5cyclictest11-21ksoftirqd/023:45:280
1379452992619,4cyclictest1428160-21apt21:30:013
1379452992619,4cyclictest1417447-21grep20:55:263
137945299261,7cyclictest13854112cpuspeed19:25:123
1379452992616,7cyclictest1435661-21meminfo21:50:193
1379449992620,4cyclictest1397254-21idleruntime-cro20:00:012
1379449992620,3cyclictest0-21swapper/200:00:272
1379449992618,5cyclictest0-21swapper/200:30:152
1379449992618,4cyclictest0-21swapper/220:25:252
1379449992617,6cyclictest0-21swapper/222:50:012
1379449992616,6cyclictest1434512-21grep21:45:272
1379449992616,6cyclictest0-21swapper/220:10:262
1379444992620,4cyclictest1422714-21kworker/u8:0+events_unbound21:12:131
1379444992619,4cyclictest0-21swapper/123:30:151
1379444992617,5cyclictest0-21swapper/119:40:011
1379444992616,7cyclictest438-21cron19:30:011
137944099269,10cyclictest11-21ksoftirqd/021:05:280
137944099266,10cyclictest11-21ksoftirqd/021:30:150
137944099266,10cyclictest11-21ksoftirqd/020:55:150
137944099266,10cyclictest11-21ksoftirqd/019:35:280
1379440992620,4cyclictest1485010-21kworker/u8:1+events_unbound00:30:300
1379440992620,4cyclictest1393241-21kworker/u8:1+events_unbound19:59:060
1379440992619,4cyclictest1474644-21sh23:45:000
1379440992619,4cyclictest1406167-21grep20:25:150
1379440992618,5cyclictest1493605-21sh00:40:000
1379440992610,6cyclictest11-21ksoftirqd/021:20:190
1379452992519,3cyclictest0-21swapper/320:40:003
1379452992517,5cyclictest0-21swapper/321:15:283
1379452992517,4cyclictest0-21swapper/323:00:253
1379449992519,3cyclictest0-21swapper/223:15:242
1379449992519,3cyclictest0-21swapper/223:15:242
1379449992515,7cyclictest1446246-21ntp_states22:20:232
1379449992515,7cyclictest1391917-21auditctl19:45:002
1379449992515,6cyclictest1389773-21grep19:35:282
1379449992513,7cyclictest0-21swapper/222:15:252
1379449992513,7cyclictest0-21swapper/222:15:252
137944999251,20cyclictest1429998-21date21:35:012
1379444992519,3cyclictest0-21swapper/121:55:171
1379444992516,6cyclictest1467887-21grep23:25:001
1379444992516,6cyclictest1467887-21grep23:25:001
1379444992515,7cyclictest1466106-21pluginstate23:20:001
1379444992515,7cyclictest1466106-21pluginstate23:20:001
1379444992515,6cyclictest0-21swapper/123:00:151
137944099259,6cyclictest11-21ksoftirqd/021:55:140
1379440992519,3cyclictest0-21swapper/022:20:260
1379440992518,5cyclictest1460743-21kworker/u8:2+events_unbound23:04:120
1379440992518,5cyclictest1411860-21kworker/u8:2+events_unbound20:47:500
1379440992518,5cyclictest1411860-21kworker/u8:2+events_unbound20:47:500
1379440992517,6cyclictest1486727-21kworker/u8:2+events_unbound00:20:120
1379440992513,8cyclictest204-21dbus-daemon23:57:230
137944099251,20cyclictest0-21swapper/019:17:050
1379452992418,3cyclictest0-21swapper/322:05:273
1379452992418,3cyclictest0-21swapper/319:20:193
1379452992417,4cyclictest0-21swapper/320:10:013
1379452992415,5cyclictest0-21swapper/320:10:263
1379452992415,5cyclictest0-21swapper/300:10:153
1379452992413,7cyclictest0-21swapper/323:20:263
1379452992413,7cyclictest0-21swapper/323:20:263
1379452992412,9cyclictest1-21systemd00:32:273
1379449992418,3cyclictest0-21swapper/223:00:152
1379449992418,3cyclictest0-21swapper/220:35:212
1379449992418,3cyclictest0-21swapper/200:20:142
1379444992418,3cyclictest1457155-21grep22:50:241
1379444992418,3cyclictest1407002-21tail20:25:251
1379444992418,3cyclictest0-21swapper/121:15:281
1379444992417,5cyclictest1433248-21kworker/u8:2+events_unbound21:49:271
1379444992417,4cyclictest1445221-21sendmail22:20:001
1379444992417,4cyclictest1445221-21sendmail22:20:001
1379444992417,4cyclictest0-21swapper/119:20:261
1379444992417,3cyclictest0-21swapper/122:30:161
1379444992416,4cyclictest0-21swapper/122:55:171
1379444992412,4cyclictest131rcu_preempt20:38:471
137944099247,6cyclictest11-21ksoftirqd/022:35:150
137944099242,2cyclictest0-21swapper/023:20:250
137944099242,2cyclictest0-21swapper/023:20:250
1379440992418,3cyclictest13550irq/42-30be0000.ethernet20:30:200
137944099241,4cyclictest1410766-21taskset20:36:120
137944099241,21cyclictest0-21swapper/023:30:130
1379452992317,4cyclictest0-21swapper/321:30:123
1379452992317,3cyclictest0-21swapper/321:40:003
1379452992317,3cyclictest0-21swapper/319:15:253
1379452992316,4cyclictest1476083-21tail23:45:263
1379452992316,4cyclictest1433276-21cron21:45:003
1379452992311,9cyclictest204-21dbus-daemon00:22:263
1379449992316,3cyclictest0-21swapper/219:10:142
1379449992315,5cyclictest0-21swapper/222:15:002
1379449992315,5cyclictest0-21swapper/222:15:002
1379444992317,3cyclictest0-21swapper/123:45:231
1379444992317,3cyclictest0-21swapper/119:40:201
1379444992316,5cyclictest1445203-21kworker/u8:1+events_unbound22:20:031
1379444992314,7cyclictest1477410-21proc_pri23:50:231
1379444992313,8cyclictest1427408-21mailstats21:25:231
1379444992313,7cyclictest1403619-21grep20:15:231
137944099232,12cyclictest1463453-21ntpq23:10:200
1379440992317,3cyclictest0-21swapper/019:25:240
1379440992316,4cyclictest0-21swapper/021:40:260
1379440992316,3cyclictest0-21swapper/022:09:360
1379440992316,3cyclictest0-21swapper/000:25:550
1379452992216,3cyclictest1389744-21grep19:35:283
1379452992214,5cyclictest0-21swapper/319:15:013
1379452992212,6cyclictest1481678-21sh00:05:003
1379449992216,3cyclictest0-21swapper/222:05:192
1379449992216,3cyclictest0-21swapper/219:50:132
1379449992215,3cyclictest0-21swapper/222:55:262
1379449992212,7cyclictest1382903-21grep19:15:252
1379444992216,4cyclictest1414143-21kworker/u8:0+events_unbound20:57:121
1379444992213,7cyclictest1399279-21cat20:05:131
137944099221,19cyclictest0-21swapper/020:50:190
137945299217,4cyclictest131rcu_preempt20:20:123
1379452992115,3cyclictest1421758-21fschecks_time21:10:163
1379452992115,3cyclictest0-21swapper/319:50:153
1379452992115,3cyclictest0-21swapper/319:30:253
1379452992115,3cyclictest0-21swapper/300:15:203
1379452992113,5cyclictest391ktimers/323:55:013
1379452992113,5cyclictest391ktimers/322:27:333
1379452992111,8cyclictest1418599-21load21:00:193
1379449992116,3cyclictest0-21swapper/221:35:182
1379449992115,3cyclictest1408080-21fschecks_count20:30:172
1379449992115,3cyclictest0-21swapper/223:45:232
1379449992114,4cyclictest0-21swapper/223:55:262
1379449992113,5cyclictest0-21swapper/200:05:302
1379449992110,8cyclictest1399412-21perl20:05:162
1379444992115,3cyclictest0-21swapper/120:50:141
1379444992113,5cyclictest0-21swapper/100:25:251
1379452992014,3cyclictest1449071-21/usr/sbin/munin22:30:143
1379452992014,3cyclictest0-21swapper/321:10:013
1379452992013,4cyclictest1468228-21fschecks_count23:25:153
1379452992012,5cyclictest1462720-21latency_hist23:10:003
137944999206,11cyclictest1405772-21cron20:25:002
1379449992014,4cyclictest1471611-21fschecks_count23:35:162
1379449992012,5cyclictest311ktimers/221:10:192
1379449992010,7cyclictest1438819-21grep22:00:152
1379444992013,5cyclictest1441668-21kworker/u8:3+events_unbound22:40:181
1379449991912,5cyclictest311ktimers/222:30:212
1379449991912,3cyclictest0-21swapper/200:10:152
1379449991811,4cyclictest1411347-21cpu20:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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