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2026-05-12 - 07:48

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 Tue May 12, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3841656995424,9cyclictest131rcu_preempt19:15:123
3841651995438,11cyclictest311ktimers/219:55:142
3841656994943,4cyclictest3890497-21kworker/u8:3+events_unbound23:33:183
3841642994739,4cyclictest3893965-21munin-run21:40:010
3841642994631,11cyclictest121ktimers/022:55:130
3841645994531,10cyclictest231ktimers/120:50:131
3841656994434,6cyclictest3876217-21grep20:45:253
384164599431,38cyclictest3928002-21grep23:15:271
384164599431,38cyclictest3928002-21grep23:15:261
3841656994232,6cyclictest0-21swapper/323:20:003
3841656994232,6cyclictest0-21swapper/323:20:003
3841651994229,10cyclictest311ktimers/220:35:142
3841645994234,5cyclictest3921466-21sendmail23:00:011
3841645994231,7cyclictest3854064-21unixbench_multi19:40:241
3841645994229,8cyclictest3895261-21grep21:40:281
3841645994130,7cyclictest3852400-21unixbench_singl19:35:261
3841642994128,10cyclictest121ktimers/023:05:120
3841651994030,6cyclictest0-21swapper/222:00:002
3841645994030,6cyclictest3889249-21fschecks_count21:25:161
3841642994031,6cyclictest3888844-21cron21:25:000
3841642994031,6cyclictest3888844-21cron21:24:590
3841642994028,7cyclictest3907129-21grep22:15:240
3841645993928,7cyclictest0-21swapper/119:15:251
384164299393,5cyclictest131rcu_preempt00:25:140
3841642993927,7cyclictest3881409-21head21:00:250
3841645993831,5cyclictest3835168-21kworker/u8:3+events_unbound19:10:031
3841645993826,8cyclictest231ktimers/123:50:131
384164299384,6cyclictest131rcu_preempt00:30:130
3841642993829,5cyclictest0-21swapper/023:54:590
3841656993729,4cyclictest0-21swapper/320:00:163
3841656993725,8cyclictest3902491-21sh22:05:013
3841656993720,6cyclictest3890497-21kworker/u8:3+events_unbound22:57:233
3841656993717,6cyclictest3879784-21kworker/u8:0+events_unbound20:59:063
3841651993726,7cyclictest0-21swapper/221:40:012
3841642993727,6cyclictest3895263-21unixbench_singl21:40:270
3841642993726,6cyclictest0-21swapper/020:50:260
3841656993631,3cyclictest3873288-21sendmail20:39:593
3841651993629,4cyclictest0-21swapper/219:15:012
3841645993628,4cyclictest0-21swapper/121:15:011
3841645993628,4cyclictest0-21swapper/100:13:211
3841645993627,5cyclictest3954045-21unixbench_multi00:30:251
3841645993626,6cyclictest0-21swapper/100:20:161
3841642993626,6cyclictest0-21swapper/023:59:590
3841642993625,6cyclictest0-21swapper/020:20:260
3841642993625,6cyclictest0-21swapper/020:20:260
384164299361,31cyclictest0-21swapper/022:45:120
3841656993527,5cyclictest3851061-21apt-key19:35:013
3841656993525,5cyclictest0-21swapper/322:22:573
3841651993527,4cyclictest0-21swapper/223:40:162
3841651993525,6cyclictest0-21swapper/200:00:272
3841645993524,8cyclictest231ktimers/121:00:131
3841642993528,4cyclictest0-21swapper/023:20:000
3841642993528,4cyclictest0-21swapper/023:20:000
3841642993526,5cyclictest0-21swapper/022:40:250
3841642993526,5cyclictest0-21swapper/022:40:250
3841642993526,5cyclictest0-21swapper/019:30:010
3841656993426,4cyclictest0-21swapper/322:30:163
3841656993424,7cyclictest3922715-21grep23:00:253
3841651993427,3cyclictest0-21swapper/220:25:262
3841651993427,3cyclictest0-21swapper/220:25:262
3841645993426,4cyclictest0-21swapper/123:55:261
3841645993423,7cyclictest0-21swapper/120:20:261
3841645993423,7cyclictest0-21swapper/120:20:261
3841642993424,6cyclictest0-21swapper/021:35:000
3841642993423,6cyclictest0-21swapper/021:55:010
3841656993327,4cyclictest391ktimers/321:50:103
3841656993325,4cyclictest0-21swapper/320:05:263
3841656993324,5cyclictest3917849-21idleruntime-cro22:50:003
3841656993324,5cyclictest0-21swapper/321:15:263
3841656993324,5cyclictest0-21swapper/321:15:263
3841656993324,4cyclictest0-21swapper/323:15:003
3841656993316,5cyclictest3861130-21kworker/u8:0+events_unbound20:27:203
3841656993316,5cyclictest3861130-21kworker/u8:0+events_unbound20:27:203
3841651993325,4cyclictest0-21swapper/222:35:262
3841651993325,3cyclictest0-21swapper/223:50:252
3841651993324,5cyclictest0-21swapper/220:45:162
3841645993326,3cyclictest0-21swapper/123:20:141
3841645993323,6cyclictest0-21swapper/122:05:001
3841645993322,6cyclictest0-21swapper/120:00:251
3841642993323,6cyclictest0-21swapper/022:25:000
3841642993322,7cyclictest0-21swapper/022:05:010
384164299331,4cyclictest131rcu_preempt21:10:130
3841656993223,5cyclictest0-21swapper/300:30:163
3841656993223,4cyclictest0-21swapper/322:25:193
3841656993221,7cyclictest3843036-21grep19:10:253
3841651993224,4cyclictest0-21swapper/219:25:172
3841645993225,4cyclictest3924880-21grep23:10:011
3841645993224,4cyclictest0-21swapper/120:25:161
3841645993224,4cyclictest0-21swapper/120:25:151
384164299322,5cyclictest131rcu_preempt23:40:120
3841642993223,5cyclictest0-21swapper/022:25:280
3841642993220,9cyclictest121ktimers/019:20:110
3841656993122,4cyclictest0-21swapper/320:50:173
3841656993121,6cyclictest0-21swapper/322:40:003
3841656993121,6cyclictest0-21swapper/321:10:013
3841656993121,5cyclictest0-21swapper/321:40:013
3841656993121,5cyclictest0-21swapper/300:00:273
3841656993120,6cyclictest3900312-21grep21:55:253
3841656993116,6cyclictest3890497-21kworker/u8:3+events_unbound00:18:213
3841656993116,6cyclictest3890497-21kworker/u8:3+events_unbound00:18:203
3841651993123,4cyclictest0-21swapper/220:55:262
3841651993120,7cyclictest3953238-21cut00:30:172
3841645993122,6cyclictest0-21swapper/100:25:181
3841642993124,5cyclictest3890497-21kworker/u8:3+events_unbound00:13:230
3841642993124,3cyclictest0-21swapper/021:20:000
3841642993124,3cyclictest0-21swapper/021:20:000
3841656993020,6cyclictest0-21swapper/321:15:013
3841651993023,4cyclictest0-21swapper/223:35:232
3841651993022,4cyclictest0-21swapper/222:15:252
384165199301,25cyclictest3866461-21cat20:20:012
3841645993022,4cyclictest0-21swapper/121:35:001
3841645993020,7cyclictest0-21swapper/122:05:161
3841645993020,6cyclictest0-21swapper/122:15:241
3841645993020,6cyclictest0-21swapper/119:50:261
3841645993020,5cyclictest0-21swapper/120:45:171
3841645993016,10cyclictest231ktimers/121:15:131
3841645993016,10cyclictest231ktimers/121:15:121
3841645993014,9cyclictest131rcu_preempt21:25:001
3841645993014,9cyclictest131rcu_preempt21:25:001
3841642993022,4cyclictest0-21swapper/023:45:260
3841642993021,6cyclictest0-21swapper/021:10:010
3841656992922,3cyclictest0-21swapper/319:55:173
3841656992921,6cyclictest3890349-21kworker/u8:0+events_unbound21:42:493
3841656992921,4cyclictest0-21swapper/320:30:263
3841656992920,5cyclictest0-21swapper/320:15:173
3841656992920,5cyclictest0-21swapper/300:20:263
3841656992918,7cyclictest3946975-21grep00:10:263
3841651992921,4cyclictest0-21swapper/223:35:002
3841651992921,4cyclictest0-21swapper/200:05:152
3841645992921,4cyclictest0-21swapper/100:15:161
3841645992921,4cyclictest0-21swapper/100:15:161
3841645992920,6cyclictest0-21swapper/100:35:251
3841645992920,5cyclictest0-21swapper/100:05:001
3841645992918,7cyclictest0-21swapper/120:55:201
3841642992923,4cyclictest3909021-21kworker/u8:1+events_unbound22:33:010
3841642992921,4cyclictest3863054-21latency_hist20:10:010
3841642992920,6cyclictest3930853-21tune2fs23:25:170
3841642992920,6cyclictest0-21swapper/020:34:590
384165699282,13cyclictest0-21swapper/321:45:123
3841656992820,4cyclictest0-21swapper/323:40:263
3841656992819,4cyclictest0-21swapper/323:25:013
3841651992821,4cyclictest3898652-21unixbench_singl21:50:252
3841651992821,3cyclictest0-21swapper/221:10:272
3841651992817,7cyclictest3918180-21apt-config22:50:012
3841645992822,4cyclictest3931990-21kworker/u8:2+events_unbound23:30:421
3841645992819,6cyclictest0-21swapper/123:15:011
3841645992819,6cyclictest0-21swapper/122:45:001
3841645992819,6cyclictest0-21swapper/122:45:001
3841645992817,7cyclictest3892974-21cat21:35:191
3841645992814,11cyclictest3937868-21sed23:45:191
3841642992821,3cyclictest0-21swapper/023:40:000
3841642992820,4cyclictest13550irq/42-30be0000.ethernet00:05:260
3841642992819,6cyclictest0-21swapper/020:55:260
3841642992819,5cyclictest0-21swapper/000:20:000
3841642992819,5cyclictest0-21swapper/000:19:590
3841642992812,4cyclictest131rcu_preempt00:38:020
384165699272,4cyclictest131rcu_preempt00:05:133
3841656992720,5cyclictest3923064-21kworker/u8:1+events_unbound23:53:243
3841656992720,5cyclictest3818318-21kworker/u8:1+events_unbound19:46:123
3841656992720,3cyclictest0-21swapper/319:50:203
3841656992719,4cyclictest0-21swapper/319:40:253
3841651992720,5cyclictest3843436-21kworker/u8:0+events_unbound19:22:122
3841645992719,5cyclictest0-21swapper/122:50:011
3841645992718,4cyclictest0-21swapper/123:05:011
3841645992717,6cyclictest0-21swapper/123:25:261
3841645992717,6cyclictest0-21swapper/120:30:261
3841642992719,4cyclictest13550irq/42-30be0000.ethernet19:50:260
3841642992719,4cyclictest0-21swapper/019:15:010
3841642992718,5cyclictest0-21swapper/023:10:160
3841642992717,6cyclictest0-21swapper/019:55:270
3841642992717,5cyclictest0-21swapper/019:20:010
3841656992620,4cyclictest3950884-21kworker/u8:0+events_unbound00:30:003
3841656992620,4cyclictest3931990-21kworker/u8:2+events_unbound23:47:203
3841656992620,4cyclictest3897197-21kworker/u8:1+events_unbound22:07:553
3841656992620,3cyclictest0-21swapper/322:40:253
3841656992620,3cyclictest0-21swapper/322:40:243
3841656992619,5cyclictest3843436-21kworker/u8:0+events_unbound19:22:023
3841656992617,5cyclictest3888434-21grep21:20:263
3841656992617,5cyclictest3888434-21grep21:20:253
3841656992617,5cyclictest0-21swapper/323:35:243
3841656992616,5cyclictest0-21swapper/300:40:003
384165699261,5cyclictest0-21swapper/322:15:113
3841656992615,7cyclictest3864299-21grep20:10:263
3841651992617,6cyclictest0-21swapper/219:45:172
3841651992616,7cyclictest3905822-21kworker/u8:2+events_unbound22:30:122
3841645992618,5cyclictest3848925-21kworker/u8:2+events_unbound19:45:251
3841645992618,4cyclictest0-21swapper/122:00:011
3841645992616,6cyclictest0-21swapper/119:30:251
3841642992621,3cyclictest13550irq/42-30be0000.ethernet20:35:160
3841642992619,5cyclictest3909021-21kworker/u8:1+events_unbound22:50:410
3841642992619,5cyclictest3890497-21kworker/u8:3+events_unbound22:12:020
3841642992618,5cyclictest0-21swapper/022:39:590
3841642992618,5cyclictest0-21swapper/019:45:180
3841642992615,8cyclictest3890072-21tail21:25:260
3841656992518,5cyclictest391ktimers/321:25:243
3841656992517,6cyclictest3890497-21kworker/u8:3+events_unbound22:51:473
3841656992517,5cyclictest0-21swapper/323:59:593
384165699251,10cyclictest0-21swapper/321:00:133
3841651992519,3cyclictest0-21swapper/223:15:002
3841651992519,3cyclictest0-21swapper/222:24:592
3841651992519,3cyclictest0-21swapper/200:25:272
3841651992517,5cyclictest0-21swapper/221:30:152
3841651992517,4cyclictest0-21swapper/222:25:292
3841651992517,4cyclictest0-21swapper/219:35:262
3841651992513,8cyclictest204-21dbus-daemon22:53:132
3841645992517,5cyclictest0-21swapper/122:25:281
3841645992517,5cyclictest0-21swapper/120:05:151
3841645992517,4cyclictest0-21swapper/123:44:591
3841645992514,8cyclictest3871804-21apt-get20:35:121
3841642992517,5cyclictest0-21swapper/020:45:170
3841642992515,7cyclictest3943638-21grep00:00:270
3841642992515,6cyclictest3897374-21sh21:50:010
3841656992416,6cyclictest3890497-21kworker/u8:3+events_unbound22:10:133
3841656992412,8cyclictest3852814-21cron19:40:013
3841651992419,3cyclictest0-21swapper/222:55:132
3841651992417,3cyclictest0-21swapper/220:10:262
3841651992416,5cyclictest0-21swapper/223:20:232
3841651992416,5cyclictest0-21swapper/221:00:162
3841651992416,5cyclictest0-21swapper/220:30:162
3841651992416,4cyclictest0-21swapper/223:08:142
3841651992416,4cyclictest0-21swapper/222:05:252
3841645992417,5cyclictest3883756-21kworker/u8:2+events_unbound21:47:411
3841645992417,3cyclictest0-21swapper/119:20:161
3841645992416,5cyclictest0-21swapper/122:20:151
3841645992416,4cyclictest0-21swapper/123:35:151
3841645992410,4cyclictest131rcu_preempt22:15:011
384164299248,6cyclictest11-21ksoftirqd/023:20:170
3841642992419,2cyclictest0-21swapper/019:40:010
3841642992416,5cyclictest3916363-21kworker/u8:2+events_unbound23:03:460
384164299241,19cyclictest0-21swapper/022:06:120
384165699232,14cyclictest3848722-21tail19:25:253
3841656992314,4cyclictest0-21swapper/320:20:263
3841656992314,4cyclictest0-21swapper/320:20:263
3841651992317,4cyclictest3850228-21switchtime19:30:232
3841651992316,4cyclictest3928052-21head23:15:272
3841651992316,4cyclictest3928052-21head23:15:272
3841651992315,5cyclictest0-21swapper/223:25:262
3841651992315,5cyclictest0-21swapper/221:29:592
3841651992312,8cyclictest3841633-21cyclictest20:50:142
384164599239,8cyclictest131rcu_preempt20:17:001
3841645992315,5cyclictest0-21swapper/119:55:271
3841645992314,7cyclictest3883095-21grep21:05:261
3841645992313,6cyclictest0-21swapper/119:30:011
384164599231,13cyclictest0-21swapper/120:40:191
384164599230,13cyclictest0-21swapper/120:10:191
3841642992317,3cyclictest0-21swapper/021:55:110
3841642992317,3cyclictest0-21swapper/019:30:230
3841642992316,5cyclictest3818318-21kworker/u8:1+events_unbound20:03:450
3841642992315,5cyclictest0-21swapper/023:30:160
384164299231,19cyclictest0-21swapper/020:43:470
3841656992216,4cyclictest3861130-21kworker/u8:0+events_unbound20:43:453
3841656992210,9cyclictest391ktimers/321:30:133
3841651992216,3cyclictest0-21swapper/222:10:152
3841651992216,3cyclictest0-21swapper/221:07:352
3841651992214,5cyclictest3914894-21fschecks_time22:40:162
3841651992214,5cyclictest3914894-21fschecks_time22:40:152
3841651992214,4cyclictest0-21swapper/223:45:172
3841651992213,5cyclictest0-21swapper/221:15:252
3841651992213,5cyclictest0-21swapper/221:15:252
3841645992212,7cyclictest3898974-21seq21:53:521
384164599221,15cyclictest3913257-21if_eth122:35:181
384164599220,15cyclictest3918271-21apt-get22:50:041
384164299221,19cyclictest0-21swapper/020:25:130
384164299221,19cyclictest0-21swapper/020:25:130
384164299221,19cyclictest0-21swapper/020:10:560
384164299220,18cyclictest0-21swapper/020:15:090
384164299220,18cyclictest0-21swapper/000:20:290
3841651992115,3cyclictest0-21swapper/223:00:172
3841651992115,3cyclictest0-21swapper/221:45:252
3841651992115,3cyclictest0-21swapper/220:40:232
3841651992114,4cyclictest0-21swapper/220:00:252
3841651992111,7cyclictest3856578-21diskstats19:50:162
3841651992110,8cyclictest3901534-21sed22:00:222
3841651992110,6cyclictest0-21swapper/220:05:252
3841645992112,6cyclictest3911485-21/usr/sbin/munin22:30:151
3841645992110,8cyclictest3945036-21grep00:05:251
384165199209,8cyclictest3887569-21grep21:20:172
384165199209,8cyclictest3887569-21grep21:20:172
3841651992014,3cyclictest0-21swapper/220:22:242
3841651992014,3cyclictest0-21swapper/220:22:232
3841651992013,5cyclictest311ktimers/200:15:152
3841651992013,5cyclictest311ktimers/200:15:152
3841651992013,4cyclictest3956196-21auditctl00:40:002
3841651992010,8cyclictest3941305-21ls23:55:192
3841651992010,6cyclictest0-21swapper/219:40:112
3841651991913,3cyclictest0-21swapper/200:20:162
3841651991912,5cyclictest0-21swapper/219:15:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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