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2026-07-11 - 10:16

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 Sat Jul 11, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99735996226,9cyclictest177444-21grep22:50:260
99735995827,7cyclictest194672-21grep23:40:270
99745995523,6cyclictest0-21swapper/223:40:262
99745995323,7cyclictest0-21swapper/222:50:262
99745995240,8cyclictest311ktimers/220:05:122
99735995221,7cyclictest193005-21grep23:35:240
99745995144,4cyclictest1574112sleep221:55:102
99740994939,6cyclictest153118-21grep21:40:241
99735994833,11cyclictest121ktimers/021:50:090
99740994741,4cyclictest151668-21kworker/u8:2+events_unbound21:51:021
99740994739,5cyclictest127984-21munin-plugin-st20:30:021
99740994738,6cyclictest164-21systemd-journal00:23:511
99745994435,6cyclictest195535-21fschecks_count23:45:152
99740994310,7cyclictest131rcu_preempt23:55:121
99740994233,6cyclictest186130-21grep23:15:271
99740994228,11cyclictest231ktimers/120:10:191
99735994229,8cyclictest101167-21grep19:10:260
9975099406,12cyclictest40-21ksoftirqd/322:55:113
99740994028,9cyclictest231ktimers/100:00:121
99750993930,5cyclictest186622-21idleruntime-cro23:20:013
99745993932,4cyclictest136510-21munin-plugin-st20:55:002
99745993928,5cyclictest0-21swapper/220:15:012
9974099391,13cyclictest0-21swapper/123:05:121
99750993832,4cyclictest201952-21kworker/u8:2+events_unbound00:11:053
99750993832,4cyclictest201952-21kworker/u8:2+events_unbound00:11:053
99750993832,4cyclictest163636-21kworker/u8:3+events_unbound22:16:073
99750993827,6cyclictest101864-21munin-node19:15:013
99750993826,8cyclictest152454-21kernelversion21:40:173
99735993828,8cyclictest167418-21cron22:25:010
99750993731,4cyclictest206747-21kworker/u8:1+events_unbound00:18:453
99745993724,7cyclictest127566-21grep20:25:252
99740993723,10cyclictest212952-21runrttasks00:35:191
99750993630,4cyclictest107008-21kworker/u8:1+events_unbound19:32:423
99750993627,7cyclictest124316-21kworker/u8:1+events_unbound20:40:453
99750993627,5cyclictest0-21swapper/321:50:003
99750993617,12cyclictest131rcu_preempt19:35:173
99745993628,4cyclictest0-21swapper/223:00:162
99745993625,6cyclictest0-21swapper/219:10:262
9974099360,13cyclictest0-21swapper/120:20:121
99735993626,6cyclictest0-21swapper/022:25:260
99735993624,7cyclictest0-21swapper/020:20:250
99750993529,4cyclictest191390-21kworker/u8:0+events_unbound23:36:193
99750993527,4cyclictest0-21swapper/320:35:253
99750993527,4cyclictest0-21swapper/320:00:273
99745993527,4cyclictest0-21swapper/223:58:162
99745993527,4cyclictest0-21swapper/221:45:012
99745993523,8cyclictest113902-21grep19:45:282
99740993527,4cyclictest0-21swapper/121:20:001
9974099352,6cyclictest131rcu_preempt19:50:111
99740993525,7cyclictest131790-21fschecks_count20:40:161
99735993528,4cyclictest210094-21grep00:25:280
9975099349,12cyclictest131rcu_preempt23:30:003
99750993428,4cyclictest210471-21kworker/u8:0+events_unbound00:38:403
99750993428,4cyclictest191390-21kworker/u8:0+events_unbound23:41:203
99750993428,4cyclictest136374-21kworker/u8:0+events_unbound21:05:533
99750993428,4cyclictest136374-21kworker/u8:0+events_unbound21:05:533
99750993426,4cyclictest0-21swapper/320:55:253
99750993425,5cyclictest172752-21ls22:40:003
99750993420,5cyclictest131rcu_preempt21:20:003
99745993425,6cyclictest0-21swapper/222:35:012
99740993426,4cyclictest0-21swapper/122:15:261
99740993426,4cyclictest0-21swapper/122:11:031
99740993426,4cyclictest0-21swapper/120:50:251
99735993427,4cyclictest0-21swapper/022:30:260
99735993422,9cyclictest106733-21sshd19:25:260
99750993324,5cyclictest0-21swapper/300:00:253
99750993322,4cyclictest131rcu_preempt00:30:453
99750993315,10cyclictest0-21swapper/323:08:103
9975099330,7cyclictest0-21swapper/322:10:103
99745993327,3cyclictest0-21swapper/200:25:152
99745993322,6cyclictest0-21swapper/223:30:252
99745993321,8cyclictest0-21swapper/200:10:242
99745993321,8cyclictest0-21swapper/200:10:232
99740993325,4cyclictest0-21swapper/122:40:001
99735993327,3cyclictest117733-21cron20:00:000
99735993322,7cyclictest176156-21sh22:50:010
9975099328,11cyclictest40-21ksoftirqd/322:50:273
9975099327,7cyclictest40-21ksoftirqd/300:05:263
9975099323,18cyclictest0-21swapper/319:45:023
99750993226,4cyclictest163636-21kworker/u8:3+events_unbound22:21:063
99750993226,4cyclictest149926-21kworker/u8:0+events_unbound22:04:423
99750993226,4cyclictest140140-21kworker/u8:1+events_unbound21:20:553
99750993223,5cyclictest208808-21auditctl00:24:593
99750993223,5cyclictest0-21swapper/323:30:153
99750993214,11cyclictest131rcu_preempt19:25:543
99750993213,6cyclictest131rcu_preempt20:45:133
99750993213,12cyclictest40-21ksoftirqd/321:35:193
99750993213,12cyclictest40-21ksoftirqd/321:35:183
99750993213,11cyclictest163636-21kworker/u8:3-events_freezable_power_22:27:313
99750993213,10cyclictest0-21swapper/320:28:463
99745993224,4cyclictest0-21swapper/221:20:152
99740993224,4cyclictest0-21swapper/120:35:421
9974099321,14cyclictest0-21swapper/122:30:121
99735993224,4cyclictest204899-21unixbench_multi00:10:230
99735993224,4cyclictest204899-21unixbench_multi00:10:230
99735993223,6cyclictest150143-21sh21:35:000
99735993223,6cyclictest150143-21sh21:35:000
99735993223,4cyclictest0-21swapper/000:20:000
99750993117,5cyclictest127862-21kworker/u8:2+events_unbound20:31:533
99750993114,10cyclictest131rcu_preempt23:20:243
99750993111,12cyclictest40-21ksoftirqd/321:30:273
99750993111,12cyclictest40-21ksoftirqd/321:30:273
99745993122,7cyclictest311ktimers/220:20:132
9974099313,4cyclictest131rcu_preempt23:45:111
99740993121,7cyclictest231ktimers/121:20:121
9974099311,4cyclictest131rcu_preempt19:45:151
99735993123,4cyclictest0-21swapper/023:30:250
99735993123,4cyclictest0-21swapper/000:00:250
99735993123,4cyclictest0-21swapper/000:00:000
99735993120,7cyclictest103431-21grep19:15:250
9975099309,12cyclictest40-21ksoftirqd/323:55:243
99750993022,4cyclictest0-21swapper/319:45:193
99750993018,3cyclictest131rcu_preempt19:53:353
99750993017,5cyclictest131rcu_preempt20:50:153
99750993017,4cyclictest131rcu_preempt23:13:003
99750993013,3cyclictest131rcu_preempt23:54:203
99750993010,12cyclictest40-21ksoftirqd/323:50:003
99745993023,4cyclictest0-21swapper/222:05:272
99745993021,5cyclictest187881-21grep23:20:252
99745993018,9cyclictest311ktimers/222:45:112
99740993022,4cyclictest0-21swapper/122:50:001
99740993020,7cyclictest179092-21grep22:55:241
99740993020,6cyclictest166957-21unixbench_multi22:20:241
99740993019,7cyclictest0-21swapper/120:00:281
99735993022,5cyclictest0-21swapper/020:50:000
99735993021,6cyclictest0-21swapper/021:50:000
99735993020,6cyclictest0-21swapper/020:55:000
99735993017,8cyclictest158399-21grep21:55:250
9975099299,11cyclictest40-21ksoftirqd/300:25:263
9975099298,7cyclictest40-21ksoftirqd/319:20:003
9975099298,3cyclictest131rcu_preempt21:30:003
9975099298,3cyclictest131rcu_preempt21:30:003
99750992921,5cyclictest391ktimers/322:30:113
99750992912,3cyclictest0-21swapper/321:11:343
99750992911,10cyclictest0-21swapper/323:03:443
99750992910,12cyclictest131rcu_preempt21:50:183
99750992910,11cyclictest131rcu_preempt20:14:473
99745992923,3cyclictest203668-21kthreadd00:10:002
99745992923,3cyclictest0-21swapper/223:15:002
99745992921,5cyclictest0-21swapper/219:55:162
99745992921,4cyclictest0-21swapper/221:35:562
99745992921,4cyclictest0-21swapper/221:35:562
99745992917,7cyclictest0-21swapper/223:35:242
9974599291,25cyclictest1-21systemd19:35:302
99740992922,5cyclictest103539-21kworker/u8:3+events_unbound19:25:301
99740992919,6cyclictest0-21swapper/121:35:161
99740992919,6cyclictest0-21swapper/121:35:161
99740992918,7cyclictest0-21swapper/123:20:251
99740992917,7cyclictest0-21swapper/120:00:001
99735992923,3cyclictest0-21swapper/023:00:000
99735992922,4cyclictest0-21swapper/021:20:000
99735992922,3cyclictest0-21swapper/021:10:240
99735992919,7cyclictest195993-21proc_pri23:45:220
99735992919,6cyclictest0-21swapper/022:15:250
99735992917,9cyclictest164005-21auditctl22:15:000
9975099288,12cyclictest40-21ksoftirqd/320:15:213
9975099287,12cyclictest40-21ksoftirqd/321:00:273
9975099286,12cyclictest131rcu_preempt19:55:193
99750992815,5cyclictest131rcu_preempt22:40:253
99750992815,3cyclictest131rcu_preempt22:48:233
99750992810,11cyclictest131rcu_preempt22:05:163
99745992822,3cyclictest0-21swapper/200:35:252
99745992820,6cyclictest98677-21kworker/u8:0+events_unbound19:15:432
99745992820,5cyclictest0-21swapper/222:15:252
99745992820,4cyclictest0-21swapper/200:00:252
99740992822,4cyclictest201952-21kworker/u8:2+events_unbound00:29:061
99740992820,5cyclictest105599-21idleruntime-cro19:25:021
99740992819,5cyclictest112411-21sh19:45:011
99740992819,4cyclictest0-21swapper/120:45:451
99740992815,3cyclictest24-21ksoftirqd/119:30:271
99735992822,3cyclictest0-21swapper/023:15:000
99735992821,3cyclictest0-21swapper/021:40:010
99735992821,3cyclictest0-21swapper/021:40:000
99735992818,6cyclictest0-21swapper/023:25:000
99735992818,6cyclictest0-21swapper/022:40:000
99735992817,6cyclictest0-21swapper/020:25:250
9975099277,11cyclictest40-21ksoftirqd/319:20:243
99745992720,5cyclictest164-21systemd-journal22:14:402
99745992719,4cyclictest0-21swapper/222:35:252
99745992718,6cyclictest148445-21sh21:30:012
99745992718,6cyclictest148445-21sh21:30:012
99740992720,5cyclictest120848-21kworker/u8:2+events_unbound20:16:341
99740992719,4cyclictest0-21swapper/123:30:001
99740992719,4cyclictest0-21swapper/121:00:261
99740992718,5cyclictest0-21swapper/119:10:261
99740992715,8cyclictest184362-21sshd23:11:151
99735992720,5cyclictest208-21systemd-logind22:02:400
99735992720,5cyclictest208-21systemd-logind19:44:410
99735992720,3cyclictest0-21swapper/020:10:220
99735992718,6cyclictest13850irq/36-mmc120:20:010
99735992717,6cyclictest0-21swapper/019:45:280
9975099268,6cyclictest40-21ksoftirqd/320:05:263
99750992613,5cyclictest131rcu_preempt20:20:203
99745992619,4cyclictest167430-21idleruntime-cro22:25:002
99745992619,4cyclictest0-21swapper/223:25:252
99745992619,4cyclictest0-21swapper/221:50:232
99745992618,4cyclictest0-21swapper/219:35:012
99745992616,6cyclictest139491-21grep21:00:262
99740992620,4cyclictest141156-21unixbench_multi21:05:261
99740992620,4cyclictest141156-21unixbench_multi21:05:261
99740992619,5cyclictest201952-21kworker/u8:2+events_unbound00:16:411
99740992619,5cyclictest193806-21kworker/u8:1+events_unbound23:40:191
99740992619,5cyclictest149926-21kworker/u8:0+events_unbound22:06:041
99740992619,4cyclictest0-21swapper/122:00:001
99740992619,3cyclictest0-21swapper/119:20:001
99740992618,5cyclictest0-21swapper/121:30:281
99740992618,5cyclictest0-21swapper/121:30:271
9974099261,3cyclictest131rcu_preempt21:45:111
99735992620,3cyclictest0-21swapper/023:10:000
99735992617,6cyclictest121147-21sh20:10:020
9973599261,10cyclictest188926-21cat23:25:160
99745992519,4cyclictest208-21systemd-logind19:24:402
99745992519,4cyclictest0-21swapper/222:00:262
99745992515,6cyclictest0-21swapper/220:00:272
99740992519,4cyclictest196720-21kworker/u8:2+events_unbound23:52:571
99740992518,4cyclictest206747-21kworker/u8:1+events_unbound00:32:391
99740992515,6cyclictest110221-21grep19:35:251
99740992515,6cyclictest0-21swapper/120:30:331
99740992514,7cyclictest0-21swapper/123:00:261
9974099251,3cyclictest0-21swapper/121:10:121
99740992512,11cyclictest24-21ksoftirqd/100:10:101
99740992512,11cyclictest24-21ksoftirqd/100:10:101
99740992510,7cyclictest182670-21kworker/u8:2+events_unbound23:35:181
99735992521,2cyclictest13550irq/42-30be0000.ethernet21:20:130
99735992517,6cyclictest0-21swapper/021:45:000
99735992517,4cyclictest0-21swapper/023:50:150
99735992515,7cyclictest210962-21cut00:30:160
9973599251,20cyclictest0-21swapper/020:31:460
9973599251,20cyclictest0-21swapper/000:09:540
99745992417,4cyclictest0-21swapper/200:20:152
99745992417,3cyclictest0-21swapper/220:45:232
99745992414,6cyclictest1-21systemd19:25:282
99745992414,6cyclictest0-21swapper/221:00:002
9974099248,10cyclictest131rcu_preempt22:50:161
99740992413,8cyclictest24-21ksoftirqd/122:00:221
9974099241,11cyclictest0-21swapper/122:28:001
99735992415,7cyclictest172979-21kworker/u8:2+events_unbound22:40:530
9973599241,19cyclictest0-21swapper/000:38:150
99745992318,3cyclictest197770-21mailstats23:50:232
99745992317,3cyclictest0-21swapper/219:40:162
99745992316,5cyclictest311ktimers/220:30:272
99745992315,5cyclictest0-21swapper/222:25:262
99745992315,5cyclictest0-21swapper/200:15:182
99745992313,7cyclictest131743-21df_inode20:40:162
9974099236,9cyclictest131rcu_preempt00:05:231
99740992317,4cyclictest146468-21kworker/u8:2+events_unbound21:27:351
99740992317,4cyclictest146468-21kworker/u8:2+events_unbound21:27:351
99735992316,3cyclictest0-21swapper/019:54:270
99735992316,3cyclictest0-21swapper/019:36:560
99735992314,6cyclictest147184-21tune2fs21:25:170
99735992314,6cyclictest147184-21tune2fs21:25:170
99735992314,6cyclictest140289-21fschecks_count21:05:150
99735992314,6cyclictest140289-21fschecks_count21:05:150
9973599231,3cyclictest184680-21apt-get23:15:030
99735992312,7cyclictest121ktimers/021:00:130
9973599231,18cyclictest0-21swapper/020:56:190
9973599231,18cyclictest0-21swapper/020:02:320
9973599231,18cyclictest0-21swapper/019:22:280
9973599230,21cyclictest0-21swapper/000:22:510
99745992216,4cyclictest0-21swapper/221:05:262
99745992216,4cyclictest0-21swapper/221:05:262
99745992215,4cyclictest124566-21idleruntime-cro20:20:022
9974099225,9cyclictest0-21swapper/122:41:301
99740992213,5cyclictest1273339-1kworker/1:1H+kblockd23:30:101
9973599221,8cyclictest179807-21munin-node23:00:110
9973599221,19cyclictest0-21swapper/020:38:120
99745992116,2cyclictest0-21swapper/223:06:122
99745992115,3cyclictest0-21swapper/200:30:162
99745992114,5cyclictest311ktimers/220:37:442
99745992114,5cyclictest178-21systemd-udevd21:18:402
99745992114,3cyclictest179570-21sendmail23:00:012
99745992113,5cyclictest115367-21ls19:50:252
99740992115,3cyclictest0-21swapper/120:55:221
9974599206,9cyclictest154199-21fschecks_time21:45:142
99745992014,3cyclictest0-21swapper/221:15:002
99745991911,4cyclictest0-21swapper/222:45:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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