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2026-04-02 - 16:59

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.
Unexpectedly long latencies may be caused by SMIs
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 Thu Apr 02, 2026 12:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18560991211,3cyclictest0-21swapper/009:20:030
1856099961,56cyclictest0-21swapper/010:56:430
18560999213,46cyclictest100307-21ssh12:04:350
1856099912,52cyclictest0-21swapper/010:35:300
18565998574,8cyclictest23-21ksoftirqd/109:25:011
18560998426,53cyclictest41960-21ssh09:49:210
18565998367,13cyclictest23-21ksoftirqd/111:15:031
18560998327,37cyclictest73491-21ssh11:02:150
18560998216,60cyclictest16850irq/134-800000009:42:160
1857099792,65cyclictest72456-21sh11:00:022
18560997938,35cyclictest3467602-21systemd-journal09:10:000
18560997933,28cyclictest97223-21ssh11:57:220
18560997932,43cyclictest95152-21ssh11:52:300
18560997827,34cyclictest67318-21ssh10:48:080
1856599776,62cyclictest55225-21rm10:20:021
1856599776,62cyclictest55225-21rm10:20:011
1856099765,43cyclictest0-21swapper/010:07:070
1856099765,43cyclictest0-21swapper/010:07:070
18560997627,44cyclictest75533-21ssh11:07:040
18560997625,47cyclictest77575-21ssh11:11:430
1856099752,55cyclictest85603-21ssh11:30:100
18560997517,43cyclictest16850irq/134-800000010:04:310
1856099751,5cyclictest61561-21munin-run10:35:000
1856099751,57cyclictest113380-21ssh12:34:570
18560997424,33cyclictest108603-21ssh12:23:330
18560997327,42cyclictest44623-21ssh09:55:120
1856599727,12cyclictest23-21ksoftirqd/110:44:591
18560997218,36cyclictest32883-21ssh09:28:190
18560997218,36cyclictest32883-21ssh09:28:190
1856099713,4cyclictest0-21swapper/011:20:010
18560997127,27cyclictest92503-21ssh11:46:140
18560997125,29cyclictest103502-21ssh12:11:380
18560997066,2cyclictest0-21swapper/012:25:020
18560997027,26cyclictest105261-21ssh12:15:360
1856099693,5cyclictest65899-21munin-run10:45:000
18560996922,31cyclictest90816-21ssh11:42:300
18560996916,48cyclictest88402-21ssh11:36:540
1856099691,4cyclictest20704-21unin-run07:50:010
18570996832,9cyclictest30-21ksoftirqd/210:24:382
1856099683,60cyclictest102688-21modprobe12:10:000
1856099683,44cyclictest3550850ssh09:34:260
18560996828,36cyclictest36511-21rm09:36:360
1857499677,39cyclictest120-21kswapd011:10:023
18560996730,32cyclictest82055-21ssh11:22:050
18565996634,8cyclictest23-21ksoftirqd/111:51:571
18560996629,33cyclictest57507-21ssh10:25:050
1856099661,4cyclictest84018-21sh11:26:370
1856099652,13cyclictest24587-21munin-run09:05:000
1856099642,9cyclictest25492-21sshd09:11:000
1856099642,13cyclictest22783-21munin-run08:30:010
18560996416,44cyclictest16850irq/134-800000010:50:170
1856099641,4cyclictest0-21swapper/009:50:180
18560996414,45cyclictest54469-21ssh10:18:300
18560996414,45cyclictest54469-21ssh10:18:300
1856599635,5cyclictest131rcu_preempt09:50:021
18565996342,16cyclictest275-21dbus-daemon10:40:001
18560996326,33cyclictest51046-21modprobe10:10:030
1856599623,9cyclictest23-21ksoftirqd/112:40:011
1856099623,5cyclictest18779-21sshd07:12:210
1856099621,57cyclictest115314-21sshd12:39:190
1856099612,13cyclictest23242-21sshd08:37:000
1856099611,8cyclictest19047-21sshd07:17:490
18570996051,5cyclictest23044-21kworker/2:209:15:582
1856599606,11cyclictest23-21ksoftirqd/111:05:021
1856099606,50cyclictest18569-21wc07:10:020
1856099606,50cyclictest18569-21wc07:10:010
1856099602,51cyclictest20169-21/usr/sbin/munin07:40:010
1856099601,7cyclictest21943-21sshd08:10:580
1856099601,4cyclictest0-21swapper/010:22:510
1856099601,17cyclictest28801-21sh09:18:520
18570995917,9cyclictest131rcu_preempt12:26:392
18570995914,7cyclictest30-21ksoftirqd/211:48:582
1856099591,17cyclictest21738-21systemd-run08:10:010
1856599582,8cyclictest23-21ksoftirqd/109:15:031
1856099583,46cyclictest21485-21unin-run08:05:010
1856099581,5cyclictest24040-21sshd08:55:000
18565995717,6cyclictest131rcu_preempt11:25:021
18565995714,6cyclictest131rcu_preempt12:10:021
1856099573,6cyclictest364-21snmpd07:29:120
1856099572,14cyclictest23024-21cut08:35:010
1856099571,8cyclictest23676-21latency_hist08:45:020
18570995620,8cyclictest30-21ksoftirqd/211:15:032
1856599569,5cyclictest131rcu_preempt12:13:401
1856599567,8cyclictest23-21ksoftirqd/110:46:391
1856599566,7cyclictest23-21ksoftirqd/112:03:121
18565995615,5cyclictest131rcu_preempt10:57:541
1856099563,46cyclictest3467602-21systemd-journal07:45:000
1856099562,14cyclictest24401-21latency_hist09:00:020
1856099562,13cyclictest22253-21tr08:20:010
1856099561,4cyclictest20912-21sshd07:51:500
18574995532,16cyclictest275-21dbus-daemon11:45:013
1857099558,4cyclictest131rcu_preempt10:54:352
1856599557,6cyclictest131rcu_preempt12:32:441
1856599555,5cyclictest131rcu_preempt09:44:511
18565995511,5cyclictest131rcu_preempt11:35:021
1856099553,9cyclictest19336-21sd-pam07:21:010
1857099546,10cyclictest30-21ksoftirqd/211:54:372
1857099545,7cyclictest30-21ksoftirqd/211:20:522
18570995436,13cyclictest1-21systemd09:55:012
1856599548,6cyclictest131rcu_preempt11:12:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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