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2026-01-10 - 19:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #3

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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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot3s.osadl.org (updated Sat Jan 10, 2026 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
369079399906,58cyclictest0-21swapper/011:28:360
3690793998819,59cyclictest16850irq/134-800000011:53:190
369079399851,79cyclictest3695223-21unin-run08:35:010
369079399849,47cyclictest3783361-21rm12:14:190
369079399811,7cyclictest3725624-21ssh10:10:260
369079399811,12cyclictest3788363-21latency_hist12:25:020
369079399792,72cyclictest3785995-21ssh12:20:010
369079399791,59cyclictest3758931-21ssh11:21:430
369079399762,68cyclictest3772028-21ls11:50:020
369079399762,68cyclictest3772028-21ls11:50:020
369079399761,4cyclictest48-21kcompactd011:37:330
369079399752,5cyclictest3736886-21munin-run10:34:590
3690793997517,53cyclictest16850irq/134-800000009:12:070
369079399751,70cyclictest3763079-21sh11:30:290
3690793997429,40cyclictest3767780-21sh11:40:380
369079399742,5cyclictest3757900-21modprobe11:19:550
369079399741,4cyclictest3743556-21ssh10:49:010
369079399734,7cyclictest364-21snmpd12:10:020
3690793997346,6cyclictest16850irq/134-800000010:40:010
3690793997327,41cyclictest16950irq/224-800000011:06:360
369079399732,5cyclictest3776923-21ssh12:00:120
369079399731,56cyclictest3731549-21ssh10:23:250
3690793997226,29cyclictest3718656-21ssh09:55:400
3690793997214,40cyclictest3744381-21ssh10:50:230
369079399721,2cyclictest0-21swapper/011:04:070
369079399712,9cyclictest3691807-21munin-run07:30:010
369079399712,9cyclictest3691807-21munin-run07:30:010
3690793997115,52cyclictest3709218-21ssh09:35:200
369079399702,5cyclictest3706464-21ssh09:30:000
369079399701,4cyclictest3707502-21ssh09:31:550
369079399693,15cyclictest3703036-21ssh09:22:220
3690793996923,27cyclictest16850irq/134-800000009:45:440
3690793996915,33cyclictest16850irq/134-800000010:44:540
369079399683,45cyclictest16850irq/134-800000010:55:410
3690793996825,26cyclictest3791652-21ssh12:31:530
369079399681,4cyclictest0-21swapper/012:30:010
3690793996721,42cyclictest3701939-21wc09:20:020
369079399671,7cyclictest3753764-21ssh11:10:350
369079399662,19cyclictest3775810-21sh11:58:030
369079399662,19cyclictest3775810-21sh11:58:020
369079399661,19cyclictest3716997-21ssh09:52:140
369079399652,18cyclictest3728973-21ssh10:17:500
3690793996516,44cyclictest16850irq/134-800000012:35:090
369079399651,15cyclictest3711977-21ssh09:41:230
369079399631,4cyclictest0-21swapper/010:26:170
3690793996312,47cyclictest3719286-21kworker/u8:210:10:000
3690793996312,47cyclictest3719286-21kworker/u8:210:09:590
369079399631,10cyclictest3691002-21sshd07:14:560
369079399622,13cyclictest3693212-21latency_hist07:55:020
3690793996212,46cyclictest364-21snmpd08:27:510
369079399621,14cyclictest3693881-21apt-config08:08:410
369079399612,12cyclictest3696211-21sshd08:50:390
369079399611,7cyclictest3692271-21sshd07:35:140
369079399611,6cyclictest3691556-21munin-run07:25:010
369079399611,5cyclictest0-21swapper/010:05:000
369079399601,7cyclictest3694131-21sshd08:10:290
369079399592,50cyclictest1-21systemd08:45:000
369079399591,5cyclictest3695471-21munin-run08:40:010
369079399591,53cyclictest3691279-21sendmail07:19:590
369079399591,4cyclictest3696755-21sshd09:04:570
369079399591,4cyclictest3696479-21modprobe08:59:560
3690793995814,38cyclictest275-21dbus-daemon07:35:010
369079399571,4cyclictest3692554-21sshd07:40:560
369079399571,11cyclictest3694690-21sshd08:24:560
3690793995625,25cyclictest3697012-21cron09:10:010
369079399552,7cyclictest3693628-21munin-run08:05:010
369079399552,7cyclictest3693628-21munin-run08:05:010
3690793995513,38cyclictest3695996-21/usr/sbin/munin08:50:000
369079399551,14cyclictest3693370-21systemd-run08:00:010
369079799548,7cyclictest131rcu_preempt10:25:251
369079399543,46cyclictest3690740-21latency_hist07:10:020
369079399543,46cyclictest3690740-21latency_hist07:10:010
369079799535,9cyclictest23-21ksoftirqd/110:32:551
369079399532,12cyclictest364-21snmpd08:16:550
369079799528,38cyclictest3727552-21unin-run10:15:011
369079799521,8cyclictest3720564-21latency_hist09:59:591
369080299511,27cyclictest361rcuc/311:55:023
3690799995135,12cyclictest1-21systemd10:15:012
369079799512,9cyclictest23-21ksoftirqd/111:57:411
369079799512,9cyclictest23-21ksoftirqd/111:57:411
369079399513,5cyclictest364-21snmpd07:46:290
3690799995030,15cyclictest275-21dbus-daemon08:25:002
369079799503,43cyclictest364-21snmpd07:15:011
3690797995033,13cyclictest3703654-21sshd09:23:561
369079799501,3cyclictest131rcu_preempt12:26:511
3690802994918,21cyclictest361rcuc/310:05:003
369079799494,3cyclictest131rcu_preempt11:35:011
3690797994932,13cyclictest1-21systemd10:20:011
369080299484,3cyclictest131rcu_preempt11:20:013
369080299484,39cyclictest1-21systemd08:35:013
3690802994830,14cyclictest3467602-21systemd-journal08:25:013
3690802994822,9cyclictest37-21ksoftirqd/312:26:513
369079999483,4cyclictest131rcu_preempt10:00:002
3690799994832,12cyclictest3467602-21systemd-journal07:30:012
3690799994832,12cyclictest3467602-21systemd-journal07:30:002
3690799994826,10cyclictest3467602-21systemd-journal12:35:012
369079999482,3cyclictest131rcu_preempt11:10:022
369079799489,4cyclictest131rcu_preempt10:22:111
369079799485,4cyclictest131rcu_preempt10:58:441
3690797994827,14cyclictest0-21swapper/110:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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