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2026-08-07 - 19:34
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

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, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Fri Aug 07, 2026 12:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
4144087228472818,12sleep04142936-21kworker/0:0+events@
dbs_work_handler		07:05:330
41433182749726,12sleep24138614-21kworker/2:1+events@
dbs_work_handler		07:05:162
41451129914133,88cyclictest253235-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		12:25:210
41451129913313,75cyclictest4156990-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		08:15:590
41451129913313,75cyclictest4156990-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		08:15:590
414513499117108,5cyclictest0-21swapper/512:15:195
41451129911032,56cyclictest67550irq/529-eth0-Tx09:40:180
41451129911032,56cyclictest67550irq/529-eth0-Tx09:40:170
414513499109102,4cyclictest0-21swapper/510:14:535
414513499109102,4cyclictest0-21swapper/510:14:535
4145112991091,97cyclictest0-21swapper/007:41:270
4145112991052,5cyclictest94145-21users10:20:430
41451129910521,34cyclictest67450irq/528-eth0-Tx10:50:300
4145112991041,74cyclictest172953-21/usr/sbin/munin11:20:200
4145112991041,74cyclictest172953-21/usr/sbin/munin11:20:200
41451129910133,48cyclictest67650irq/530-eth0-Tx09:57:520
4145112991011,91cyclictest0-21swapper/011:06:260
4145112991002,86cyclictest0-21swapper/007:26:210
41451129910025,28cyclictest67350irq/527-eth0-Tx12:15:120
4145130999989,6cyclictest98437-21ssh10:24:574
4145112999966,23cyclictest67350irq/527-eth0-Tx12:00:170
4145112999966,23cyclictest67350irq/527-eth0-Tx12:00:170
4145112999927,51cyclictest67350irq/527-eth0-Tx12:30:450
414511299991,86cyclictest0-21swapper/007:22:290
414511299984,83cyclictest0-21swapper/008:01:530
414511299984,83cyclictest0-21swapper/008:01:530
414511299981,85cyclictest0-21swapper/008:41:300
414511299981,48cyclictest218175-21ssh11:53:340
414511299972,55cyclictest193217-21/usr/sbin/munin11:35:240
2077982970,3sleep10-21swapper/111:45:331
414511299964,80cyclictest67550irq/529-eth0-Tx10:43:550
414511299961,56cyclictest0-21swapper/010:13:050
414511299961,56cyclictest0-21swapper/010:13:040
4145134999588,3cyclictest0-21swapper/511:05:045
4145112999537,42cyclictest67650irq/530-eth0-Tx10:35:240
414511299953,17cyclictest0-21swapper/010:55:390
414511299953,17cyclictest0-21swapper/010:55:390
4145112999527,36cyclictest67550irq/529-eth0-Tx09:45:370
414511299952,56cyclictest275371-21ps12:35:390
414511299952,56cyclictest275371-21ps12:35:390
414511299951,3cyclictest0-21swapper/008:47:140
4145125999483,7cyclictest210-21kswapd012:00:163
4145125999483,7cyclictest210-21kswapd012:00:163
414511299942,8cyclictest12476-21ntpq09:20:320
414511299942,48cyclictest160423-21rm11:10:260
414511299941,65cyclictest0-21swapper/008:56:490
4145121999278,7cyclictest162512-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:55:162
4145112999230,6cyclictest4183354-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		08:54:170
4145112999225,26cyclictest0-21swapper/010:32:490
414511299921,62cyclictest0-21swapper/007:38:030
4145112999131,27cyclictest67550irq/529-eth0-Tx09:15:290
414511299912,49cyclictest0-21swapper/007:50:220
414511299911,67cyclictest0-21swapper/007:46:100
4145134999084,3cyclictest0-21swapper/511:40:135
4145116999075,8cyclictest4171761-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		08:34:311
4145112999025,28cyclictest78439-21rm10:10:020
414511299901,65cyclictest0-21swapper/008:39:430
414511299901,65cyclictest0-21swapper/008:39:420
414511299901,3cyclictest0-21swapper/010:00:320
4145112998949,10cyclictest1044-21ntpq09:10:380
414511299891,65cyclictest0-21swapper/009:01:500
414511299891,62cyclictest0-21swapper/009:37:430
414511299891,62cyclictest0-21swapper/009:37:430
414511299891,49cyclictest4173594-21/usr/sbin/munin08:20:390
414511299882,63cyclictest84874-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		10:29:020
414511299882,60cyclictest221137-21ssh11:55:300
414511299882,45cyclictest67350irq/527-eth0-Tx09:30:360
414511299882,45cyclictest67350irq/527-eth0-Tx09:30:350
414511299874,63cyclictest0-21swapper/008:29:200
414511299871,56cyclictest0-21swapper/007:31:310
414511299871,56cyclictest0-21swapper/007:31:310
414511299871,56cyclictest0-21swapper/007:16:430
414511299871,52cyclictest188164-21timerandwakeup11:30:450
4145130998680,3cyclictest0-21swapper/408:29:324
414511299861,62cyclictest0-21swapper/007:55:550
414511299861,60cyclictest0-21swapper/009:06:270
4145130998574,6cyclictest125379-21ssh10:45:004
4145121998572,7cyclictest4193868-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		09:34:452
4145121998572,7cyclictest4193868-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		09:34:452
4145112998557,4cyclictest0-21swapper/008:10:160
4145112998527,31cyclictest67450irq/528-eth0-Tx09:53:180
414511299851,48cyclictest0-21swapper/010:49:460
4145112998430,5cyclictest67450irq/528-eth0-Tx11:15:170
4145112998423,27cyclictest0-21swapper/011:40:380
4145112998421,29cyclictest18675-21ssh09:25:210
4145112998421,29cyclictest18675-21ssh09:25:200
414511299841,3cyclictest0-21swapper/008:31:370
4145134998377,2cyclictest0-21swapper/509:29:445
4145134998377,2cyclictest0-21swapper/509:29:435
4145112998312,6cyclictest67350irq/527-eth0-Tx11:45:270
414511299821,57cyclictest0-21swapper/007:14:350
414511299816,55cyclictest67550irq/529-eth0-Tx12:23:130
414511299812,57cyclictest0-21swapper/008:05:480
414511299811,45cyclictest0-21swapper/011:28:370
4145112998027,9cyclictest67350irq/527-eth0-Tx12:05:160
4145112998027,9cyclictest67350irq/527-eth0-Tx12:05:160
4145112998015,3cyclictest0-21swapper/012:15:000
4145112997921,27cyclictest151818-21rm11:04:340
4145112997921,27cyclictest151818-21rm11:04:340
4145121997866,6cyclictest71317-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		10:04:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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