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2026-03-24 - 13:10

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 100 highest latencies:
System rackbslot5s.osadl.org (updated Tue Mar 24, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3447124995121,5cyclictest0-21swapper/119:45:171
3447121995040,6cyclictest3507775-21grep22:00:260
3447124994733,8cyclictest0-21swapper/119:15:011
3447121994736,7cyclictest3537189-21idleruntime-cro23:29:590
3447121994736,7cyclictest3537189-21idleruntime-cro23:29:590
3447134994533,9cyclictest391ktimers/321:30:133
3447129994534,7cyclictest3545505-21grep23:50:282
3447121994537,6cyclictest3476736-21kworker/u8:0+events_unbound20:38:000
3447129994337,4cyclictest3535290-21kworker/u8:2+events_unbound23:28:232
3447129994337,4cyclictest3535290-21kworker/u8:2+events_unbound23:28:222
3447121994336,4cyclictest3482186-21idleruntime-cro20:50:000
3447129994228,11cyclictest3501156-21cron21:45:012
3447129994227,11cyclictest3450844-21grep19:15:262
3447124994130,6cyclictest3503520-21cut21:50:171
3447129994013,10cyclictest3484950-21/usr/sbin/munin20:55:252
3447129994012,9cyclictest3512181-21chrt22:15:192
3447121994033,4cyclictest3513301-21auditctl22:20:010
3447121994025,4cyclictest131rcu_preempt23:37:040
3447121994021,11cyclictest3543004-21kworker/u8:2-events_freezable_power_23:49:360
344712999399,10cyclictest3524321-21ntpq22:50:212
3447124993927,8cyclictest0-21swapper/122:45:011
3447129993830,3cyclictest0-21swapper/221:05:172
3447129993810,9cyclictest3463269-21sed19:55:012
3447121993830,5cyclictest3506471-21cron22:00:010
3447121993830,5cyclictest3506471-21cron22:00:000
344713499373,4cyclictest131rcu_preempt19:35:133
3447124993729,5cyclictest231ktimers/123:05:121
3447124993727,7cyclictest3547843-21sendmail00:00:001
3447121993731,4cyclictest3523310-21kworker/u8:2+events_unbound22:53:180
3447134993626,7cyclictest3479167-21fschecks_count20:40:133
3447134993626,6cyclictest3468317-21auditctl20:10:013
3447134993626,4cyclictest0-21swapper/300:40:013
3447129993626,6cyclictest3466608-21cron20:05:002
3447129993620,12cyclictest3516950-21apt-get22:30:102
3447124993627,6cyclictest3554251-21grep00:15:291
3447121993630,4cyclictest3454359-21kworker/u8:2+events_unbound19:57:570
3447121993627,6cyclictest3546543-21fschecks_count23:55:160
3447121993616,4cyclictest131rcu_preempt21:05:480
3447129993522,9cyclictest3502627-21grep21:45:292
344712199356,13cyclictest11-21ksoftirqd/019:45:170
3447121993520,4cyclictest131rcu_preempt23:22:250
3447121993520,4cyclictest131rcu_preempt19:21:300
3447121993516,3cyclictest131rcu_preempt00:33:370
3447121993515,5cyclictest0-21swapper/000:38:120
344712199351,25cyclictest11-21ksoftirqd/023:00:000
3447121993511,6cyclictest11-21ksoftirqd/021:00:010
3447134993427,4cyclictest0-21swapper/321:40:003
344713499342,4cyclictest131rcu_preempt22:45:163
3447129993427,4cyclictest0-21swapper/221:50:262
3447129993426,4cyclictest3556390-21munin-plugin-st00:25:002
3447129993410,9cyclictest3509505-21users22:05:242
3447124993425,5cyclictest0-21swapper/122:45:251
3447124993423,7cyclictest0-21swapper/122:05:251
3447124993422,9cyclictest231ktimers/121:45:131
3447124993422,8cyclictest3552536-21grep00:10:271
344712199342,24cyclictest0-21swapper/021:54:230
3447121993421,5cyclictest131rcu_preempt19:15:020
3447121993417,4cyclictest131rcu_preempt20:44:570
3447121993416,4cyclictest131rcu_preempt19:50:140
3447121993415,11cyclictest131rcu_preempt23:40:250
3447121993414,9cyclictest131rcu_preempt23:50:450
3447121993414,4cyclictest131rcu_preempt20:10:170
344712199341,25cyclictest11-21ksoftirqd/023:20:010
3447134993325,5cyclictest3545649-21kworker/u8:3+events_unbound00:10:423
3447134993325,4cyclictest0-21swapper/323:30:153
3447129993320,10cyclictest3546419-21/usr/sbin/munin23:55:132
3447129993320,10cyclictest3457447-21/usr/sbin/munin19:35:252
3447129993318,7cyclictest3474017-21/usr/sbin/munin20:25:162
3447124993322,7cyclictest3452510-21grep19:20:251
3447121993324,4cyclictest131rcu_preempt20:23:160
3447121993320,5cyclictest131rcu_preempt19:30:150
3447121993314,3cyclictest131rcu_preempt21:35:470
3447121993312,5cyclictest131rcu_preempt20:09:220
3447134993225,5cyclictest3545649-21kworker/u8:3+events_unbound00:07:193
3447134993222,6cyclictest3504315-21grep21:50:273
344713499321,5cyclictest0-21swapper/320:55:143
344712999326,9cyclictest3526033-21ntp_states22:55:192
344712999326,6cyclictest0-21swapper/219:55:262
3447129993222,7cyclictest3460370-21/usr/sbin/munin19:45:202
3447129993221,8cyclictest3522710-21/usr/sbin/munin22:45:252
3447129993219,10cyclictest3554527-21sshd00:18:332
3447129993219,10cyclictest3551751-21/usr/sbin/munin00:10:192
3447129993219,10cyclictest3520820-21/usr/sbin/munin22:40:192
3447129993213,10cyclictest311ktimers/221:30:132
3447129993210,5cyclictest3493442-21ntp_states21:20:222
3447124993223,6cyclictest0-21swapper/100:25:011
3447124993221,7cyclictest3494336-21sh21:25:011
3447121993226,4cyclictest3511322-21kworker/u8:1+events_unbound22:48:160
3447121993214,5cyclictest131rcu_preempt21:30:200
3447121993214,3cyclictest131rcu_preempt22:20:220
3447121993212,5cyclictest131rcu_preempt00:15:150
3447121993212,3cyclictest131rcu_preempt22:35:180
344713499314,5cyclictest131rcu_preempt19:50:113
3447134993125,4cyclictest3495900-21kworker/u8:2+events_unbound22:12:373
3447134993124,4cyclictest3456365-21cron19:35:003
3447134993124,4cyclictest0-21swapper/321:30:013
3447134993123,4cyclictest0-21swapper/322:40:153
3447134993121,7cyclictest391ktimers/319:10:073
3447129993123,4cyclictest0-21swapper/223:20:172
3447129993123,4cyclictest0-21swapper/219:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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