You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-10-16 - 22:47

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #a, slot #5

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  TI
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 rackaslot5s.osadl.org (updated Fri Oct 16, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880,0rcu_preempt3-21ksoftirqd/011:39:570
9950740,0irq/345-4848400171rcuc/108:39:541
81740,0rcu_preempt19-21ksoftirqd/110:54:031
81720,0rcu_preempt19-21ksoftirqd/109:12:451
81680,0rcu_preempt3-21ksoftirqd/010:59:590
81670,0rcu_preempt19-21ksoftirqd/110:38:191
81640,0rcu_preempt3-21ksoftirqd/012:35:120
81630,0rcu_preempt3-21ksoftirqd/009:58:000
81630,0rcu_preempt19-21ksoftirqd/110:15:561
81620,0rcu_preempt3-21ksoftirqd/012:15:130
81620,0rcu_preempt3-21ksoftirqd/011:35:080
81620,0rcu_preempt19-21ksoftirqd/111:49:541
81610,0rcu_preempt3-21ksoftirqd/010:46:230
81610,0rcu_preempt3-21ksoftirqd/010:37:390
81610,0rcu_preempt20097-21apt-get08:34:551
81610,0rcu_preempt19-21ksoftirqd/111:03:231
81610,0rcu_preempt19-21ksoftirqd/108:05:101
81610,0rcu_preempt15067-21df_inode12:10:010
81610,0rcu_preempt15067-21df_inode12:10:010
10050610,0irq/346-48484008146-1kworker/0:0H10:00:590
81600,0rcu_preempt19-21ksoftirqd/111:33:411
81600,0rcu_preempt19-21ksoftirqd/110:55:121
81600,0rcu_preempt19-21ksoftirqd/110:55:121
81600,0rcu_preempt19-21ksoftirqd/109:14:551
10050600,0irq/346-48484003386-1kworker/0:1H10:20:200
81590,0rcu_preempt19-21ksoftirqd/108:04:171
81590,0rcu_preempt19-21ksoftirqd/107:58:451
81590,0rcu_preempt19-21ksoftirqd/107:19:591
81590,0rcu_preempt19-21ksoftirqd/107:15:071
10050590,0irq/346-48484000-21swapper/010:52:050
81580,0rcu_preempt3-21ksoftirqd/008:59:520
81580,0rcu_preempt19-21ksoftirqd/111:55:131
81580,0rcu_preempt19-21ksoftirqd/110:10:071
81580,0rcu_preempt19-21ksoftirqd/108:24:301
81580,0rcu_preempt19-21ksoftirqd/108:16:301
81580,0rcu_preempt19-21ksoftirqd/108:10:081
81580,0rcu_preempt19-21ksoftirqd/108:10:081
81570,0rcu_preempt3-21ksoftirqd/009:39:310
81570,0rcu_preempt19-21ksoftirqd/112:25:081
81570,0rcu_preempt19-21ksoftirqd/112:01:591
81570,0rcu_preempt19-21ksoftirqd/111:25:031
81570,0rcu_preempt19-21ksoftirqd/111:07:481
81570,0rcu_preempt19-21ksoftirqd/110:41:511
81570,0rcu_preempt19-21ksoftirqd/110:41:511
81570,0rcu_preempt19-21ksoftirqd/108:25:141
9950560,0irq/345-484840032383-21munin-node0
81560,0rcu_preempt9434-21diskstats09:20:001
81560,0rcu_preempt3-21ksoftirqd/012:25:000
81560,0rcu_preempt3-21ksoftirqd/010:41:130
81560,0rcu_preempt3-21ksoftirqd/010:41:130
81560,0rcu_preempt19-21ksoftirqd/112:30:091
81560,0rcu_preempt19-21ksoftirqd/111:22:391
81560,0rcu_preempt19-21ksoftirqd/109:25:121
10050560,0irq/346-48484000-21swapper/009:16:320
9950550,0irq/345-4848400765-21rngd10:19:551
9950550,0irq/345-484840020648-21dropbear11:10:011
81550,0rcu_preempt705-21ssh09:44:151
81550,0rcu_preempt19-21ksoftirqd/111:39:021
81550,0rcu_preempt19-21ksoftirqd/108:30:161
81540,0rcu_preempt19-21ksoftirqd/110:44:461
81540,0rcu_preempt19-21ksoftirqd/108:55:031
81540,0rcu_preempt19-21ksoftirqd/107:50:041
81530,0rcu_preempt19-21ksoftirqd/111:45:101
81530,0rcu_preempt19-21ksoftirqd/111:40:151
81530,0rcu_preempt19-21ksoftirqd/110:03:491
81530,0rcu_preempt19-21ksoftirqd/109:30:401
10050530,0irq/346-48484000-21swapper/011:32:290
81520,0rcu_preempt19-21ksoftirqd/112:20:291
81520,0rcu_preempt19-21ksoftirqd/112:14:551
81520,0rcu_preempt19-21ksoftirqd/112:10:101
81520,0rcu_preempt19-21ksoftirqd/112:10:101
81520,0rcu_preempt19-21ksoftirqd/110:25:151
81520,0rcu_preempt19-21ksoftirqd/109:05:011
81510,0rcu_preempt3-21ksoftirqd/009:19:570
81510,0rcu_preempt22972-21apt-get07:04:560
10050510,0irq/346-48484006613-21ssh09:50:000
10050510,0irq/346-484840030232-21ssh11:19:540
81500,0rcu_preempt3-21ksoftirqd/010:19:470
81500,0rcu_preempt3-21ksoftirqd/008:30:110
81500,0rcu_preempt19-21ksoftirqd/112:05:081
81500,0rcu_preempt19-21ksoftirqd/110:06:561
81500,0rcu_preempt19-21ksoftirqd/109:55:111
81500,0rcu_preempt19-21ksoftirqd/108:50:031
81500,0rcu_preempt19-21ksoftirqd/108:50:031
81500,0rcu_preempt19-21ksoftirqd/107:10:061
81490,0rcu_preempt6748-21kworker/u4:009:45:291
81490,0rcu_preempt6748-21kworker/u4:009:45:291
81490,0rcu_preempt3-21ksoftirqd/012:30:020
81490,0rcu_preempt3-21ksoftirqd/009:25:000
81490,0rcu_preempt3-21ksoftirqd/008:15:110
81490,0rcu_preempt3-21ksoftirqd/008:00:580
81490,0rcu_preempt3-21ksoftirqd/007:44:550
81490,0rcu_preempt19-21ksoftirqd/111:16:181
81490,0rcu_preempt19-21ksoftirqd/109:00:021
81490,0rcu_preempt19-21ksoftirqd/107:45:091
10050490,0irq/346-48484000-21swapper/012:19:530
10050490,0irq/346-48484000-21swapper/010:27:160
81480,0rcu_preempt3-21ksoftirqd/008:25:100
81480,0rcu_preempt3-21ksoftirqd/008:20:060
81480,0rcu_preempt3-21ksoftirqd/008:04:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional