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2026-07-29 - 17:22
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 Wed Jul 29, 2026 12:46:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3271244223502328,13sleep40-21swapper/407:07:284
3270569223122287,15sleep50-21swapper/507:05:345
3271597991333,107cyclictest3384654-21apt-get10:00:080
32715979913216,78cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:49:030
32715979913216,78cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:49:020
3271597991312,105cyclictest0-21swapper/009:00:230
32715979912773,13cyclictest0-21swapper/008:55:260
32716099911298,7cyclictest3384829-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		10:23:503
32715979911081,19cyclictest67450irq/528-eth0-Tx12:15:030
32715979910877,21cyclictest67450irq/528-eth0-Tx08:40:340
3271597991081,91cyclictest3286883-21ps07:45:390
32716099910794,7cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:44:043
3271597991061,90cyclictest0-21swapper/009:21:470
32715979910547,7cyclictest3463489-21apt11:00:130
3271597991041,93cyclictest0-21swapper/008:25:310
3271597991041,93cyclictest0-21swapper/008:25:310
3271597991032,91cyclictest0-21swapper/011:05:430
3271597991032,91cyclictest0-21swapper/011:05:420
3271597991032,7cyclictest0-21swapper/010:50:160
3271597991031,89cyclictest3543440-21ntp_states12:00:410
3271597991031,89cyclictest3543440-21ntp_states12:00:410
3271597991031,81cyclictest3319965-21diskmemload09:40:140
32715979910279,13cyclictest67350irq/527-eth0-Tx08:20:370
32715979910269,22cyclictest67450irq/528-eth0-Tx12:34:430
3271597991021,90cyclictest3289629-21taskset07:54:130
3271597991021,86cyclictest0-21swapper/007:20:210
32716159910189,6cyclictest3323426-21diskmemload-412:39:154
32715979910165,21cyclictest0-21swapper/009:50:430
32715979910026,55cyclictest3324897-21/usr/sbin/munin09:15:100
3271597999965,24cyclictest67350irq/527-eth0-Tx10:25:350
3271597999955,26cyclictest0-21swapper/011:56:220
327159799992,84cyclictest0-21swapper/011:22:510
327159799991,86cyclictest0-21swapper/009:05:350
327159799991,82cyclictest0-21swapper/007:35:370
327159799991,80cyclictest0-21swapper/009:35:270
327159799981,85cyclictest0-21swapper/011:10:260
327159799981,49cyclictest0-21swapper/010:47:060
327159799981,45cyclictest0-21swapper/011:37:430
3271597999747,7cyclictest3310245-21sh08:45:170
327159799971,86cyclictest0-21swapper/009:45:430
327159799971,85cyclictest0-21swapper/009:55:160
327159799971,82cyclictest0-21swapper/008:50:150
3271597999675,12cyclictest67450irq/528-eth0-Tx10:05:500
3271597999664,23cyclictest0-21swapper/009:10:320
3271597999649,26cyclictest0-21swapper/011:00:010
327159799961,81cyclictest0-21swapper/008:30:290
327159799952,78cyclictest3319965-21diskmemload12:20:280
327159799951,79cyclictest0-21swapper/009:33:080
327159799951,79cyclictest0-21swapper/009:33:070
3271597999463,22cyclictest0-21swapper/012:29:310
3271597999462,23cyclictest67450irq/528-eth0-Tx07:25:190
327159799942,61cyclictest3518190-21ssh11:41:070
327159799941,82cyclictest0-21swapper/012:35:590
327159799941,3cyclictest0-21swapper/011:50:190
327159799941,3cyclictest0-21swapper/011:50:190
3271609999379,7cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:24:023
327159799932,77cyclictest3296768-21ntpq08:10:270
327159799932,77cyclictest3296768-21ntpq08:10:270
327159799931,82cyclictest0-21swapper/010:43:550
327159799931,7cyclictest3429720-21ssh10:34:360
327159799931,65cyclictest0-21swapper/010:20:420
327159799922,77cyclictest0-21swapper/008:00:310
327159799922,5cyclictest3488788-21ssh11:19:350
3271597999161,14cyclictest67450irq/528-eth0-Tx07:10:190
3271597999157,22cyclictest67350irq/527-eth0-Tx10:35:280
3271597999147,5cyclictest3306089-21/usr/sbin/munin08:35:390
327159799911,77cyclictest3319965-21diskmemload12:12:470
327159799911,77cyclictest3319965-21diskmemload12:12:460
327159799911,73cyclictest0-21swapper/010:15:230
327159799911,73cyclictest0-21swapper/010:15:220
3271597999038,4cyclictest0-21swapper/010:11:110
3271597999038,4cyclictest0-21swapper/010:11:100
327159799901,3cyclictest0-21swapper/007:30:350
327159799892,72cyclictest3299953-21latency_hist08:20:010
327159799892,3cyclictest0-21swapper/008:05:200
3271597998855,20cyclictest67350irq/527-eth0-Tx09:25:070
3271597998855,20cyclictest67350irq/527-eth0-Tx09:25:070
3271597998843,4cyclictest0-21swapper/012:05:200
3271597998843,4cyclictest0-21swapper/012:05:190
327159799881,69cyclictest3289995-21/usr/sbin/munin07:55:130
327159799881,69cyclictest3289995-21/usr/sbin/munin07:55:130
3271606998775,6cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:09:002
3271606998775,6cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:08:592
3271597998741,25cyclictest0-21swapper/011:34:410
3271597998651,25cyclictest0-21swapper/007:40:490
3271609998572,6cyclictest3271190-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		07:23:153
327159799852,44cyclictest0-21swapper/011:25:320
327159799851,3cyclictest0-21swapper/007:15:030
3271615998169,7cyclictest3371492-21ssh09:50:174
3271609998157,8cyclictest3456296-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		11:14:323
3271615997969,5cyclictest3438014-21ssh10:40:244
3271615997968,4cyclictest0-21swapper/408:32:254
3271615997967,7cyclictest3543658-21ssh12:00:454
3271615997967,7cyclictest3543658-21ssh12:00:444
3271609997765,6cyclictest3291484-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		08:03:213
3271609997764,7cyclictest3291484-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		08:08:233
3271609997746,8cyclictest3592787-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		12:39:343
3271601997765,6cyclictest3407898-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		10:53:571
33881522760,5chrt3388150-21ssh10:02:214
3271615997670,3cyclictest0-21swapper/412:14:094
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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