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2026-04-27 - 14:42
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 Mon Apr 27, 2026 12:46:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
32249299133120,6cyclictest409535-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:05:513
45523621240,3sleep00-21swapper/010:18:360
3224789912279,13cyclictest69050irq/528-eth0-Tx11:35:410
3224789912279,13cyclictest69050irq/528-eth0-Tx11:35:410
322478991191,74cyclictest588984-21kworker/0:1+events@
free_work		12:10:270
322478991162,87cyclictest0-21swapper/011:25:070
3224789911222,74cyclictest475775-21ssh10:35:180
3224789911221,53cyclictest0-21swapper/011:10:410
3224789911217,83cyclictest69150irq/529-eth0-Tx10:10:240
3224789911058,43cyclictest0-21swapper/008:15:300
3224789910958,37cyclictest460975-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:25:420
3224789910922,63cyclictest568992-21ssh11:50:200
322478991071,90cyclictest0-21swapper/007:10:340
3224789910641,30cyclictest0-21swapper/009:33:550
3224789910625,50cyclictest611797-21ssh12:25:060
3224789910625,50cyclictest611797-21ssh12:25:060
322478991051,94cyclictest0-21swapper/008:14:250
3224789910515,51cyclictest0-21swapper/011:55:120
322478991051,4cyclictest367855-21sshd09:00:290
3224789910471,24cyclictest69150irq/529-eth0-Tx09:20:000
322478991041,93cyclictest0-21swapper/007:53:370
322478991041,93cyclictest0-21swapper/007:53:360
3224789910366,27cyclictest68950irq/527-eth0-Tx11:15:070
3224789910353,34cyclictest0-21swapper/007:55:440
322478991031,87cyclictest0-21swapper/010:50:450
3224789910311,63cyclictest533668-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		12:05:130
322478991031,15cyclictest409535-21kworker/u12:2+rpciod@
rpc_async_schedule		10:07:570
3224789910264,28cyclictest68950irq/527-eth0-Tx11:49:310
3224789910253,40cyclictest0-21swapper/007:15:150
322478991022,83cyclictest0-21swapper/011:21:410
3224789910226,58cyclictest432769-21if_eth110:00:230
54480821010,5sleep20-21swapper/211:30:302
54480821010,5sleep20-21swapper/211:30:302
3224889910188,6cyclictest491911-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		11:01:352
3224789910158,23cyclictest0-21swapper/009:45:330
322478991012,81cyclictest0-21swapper/011:05:230
322478991011,95cyclictest0-21swapper/008:25:360
322478991011,95cyclictest0-21swapper/008:25:360
3224789910070,20cyclictest68950irq/527-eth0-Tx09:55:320
3224789910069,22cyclictest69050irq/528-eth0-Tx11:30:290
3224789910069,22cyclictest69050irq/528-eth0-Tx11:30:290
3224789910068,19cyclictest68950irq/527-eth0-Tx09:25:230
3224789910068,19cyclictest68950irq/527-eth0-Tx09:25:220
322478991002,91cyclictest14350irq/98-imx_mu_c10:58:390
322478991001,83cyclictest0-21swapper/010:49:230
322478991001,83cyclictest0-21swapper/010:49:230
3224789910012,57cyclictest0-21swapper/009:42:440
322478999969,20cyclictest69050irq/528-eth0-Tx08:50:160
322478999968,22cyclictest4039472sleep009:36:570
322478999968,22cyclictest4039472sleep009:36:560
322478999959,23cyclictest0-21swapper/009:12:410
32247899981,84cyclictest0-21swapper/007:40:320
322478999766,21cyclictest69050irq/528-eth0-Tx10:41:590
322478999766,21cyclictest69050irq/528-eth0-Tx10:41:590
32247899972,5cyclictest357382-21diskstats08:35:180
322478999653,31cyclictest68950irq/527-eth0-Tx11:02:370
32247899962,5cyclictest369484-21/usr/sbin/munin09:05:220
322478999564,20cyclictest0-21swapper/008:31:550
322478999556,23cyclictest0-21swapper/008:40:290
322478999527,52cyclictest624448-21aten2_r3power_p12:35:170
322478999521,55cyclictest0-21swapper/012:00:290
32247899941,88cyclictest0-21swapper/007:20:340
32247899938,80cyclictest14550irq/98-imx_mu_c10:25:010
322478999355,28cyclictest69050irq/528-eth0-Tx12:15:110
322478999320,58cyclictest470507-21ps10:30:390
32247899931,85cyclictest0-21swapper/008:00:180
322478999318,55cyclictest420770-21ssh09:50:310
32247899931,3cyclictest0-21swapper/007:35:240
32247899931,3cyclictest0-21swapper/007:35:240
322478999311,6cyclictest13-21ksoftirqd/007:30:000
322478999240,25cyclictest619214-21ntpq12:30:360
322478999240,25cyclictest619214-21ntpq12:30:360
32247899921,79cyclictest605441-21ssh12:20:070
32247899921,69cyclictest0-21swapper/007:45:420
322478999154,24cyclictest0-21swapper/011:40:310
322478999154,24cyclictest0-21swapper/011:40:310
322478999149,24cyclictest0-21swapper/008:55:130
322478999149,24cyclictest0-21swapper/008:55:120
32247899911,76cyclictest0-21swapper/008:05:140
322497998978,5cyclictest0-21swapper/411:25:344
322478998957,23cyclictest0-21swapper/007:30:340
322478998857,22cyclictest0-21swapper/008:20:140
322478998852,27cyclictest69050irq/528-eth0-Tx09:20:370
322482998759,9cyclictest210-21kswapd010:55:281
322492998672,7cyclictest326138-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		07:35:093
322492998672,7cyclictest326138-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		07:35:083
322501998579,3cyclictest0-21swapper/508:11:315
322482998450,10cyclictest358529-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		10:02:341
322492998369,7cyclictest606171-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		12:20:343
322492998364,8cyclictest513831-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		11:09:413
322488998354,9cyclictest398027-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		09:45:452
322478998334,4cyclictest0-21swapper/008:45:380
322501998276,3cyclictest0-21swapper/511:51:445
322501998276,3cyclictest0-21swapper/511:26:165
322492998161,8cyclictest358529-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		09:51:433
322501997973,3cyclictest0-21swapper/511:11:345
322501997973,3cyclictest0-21swapper/510:22:165
322492997967,6cyclictest524021-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		11:59:163
322492997967,6cyclictest373650-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		09:22:373
322492997967,6cyclictest358529-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		10:02:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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