You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-22 - 20:09

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 Sat Nov 22, 2025 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811050,0rcu_preempt19-21ksoftirqd/110:25:031
81880,0rcu_preempt13918-1kworker/0:3H08:18:110
81740,0rcu_preempt3-21ksoftirqd/011:39:480
81730,0rcu_preempt23728-21cyclictest11:53:071
81680,0rcu_preempt3-21ksoftirqd/008:00:000
23729996729,0cyclictest7511-21ping08:05:100
23729996526,0cyclictest28696-1kworker/0:3H09:04:360
81640,0rcu_preempt29953-1kworker/0:0H07:30:220
23729996327,0cyclictest0-21swapper/011:49:470
81620,0rcu_preempt3-21ksoftirqd/010:49:460
23729996126,0cyclictest10814-21apt-get11:44:510
23729996123,0cyclictest547-21cpu09:59:490
23729996122,0cyclictest565-1kworker/0:1H11:33:000
23729996122,0cyclictest565-1kworker/0:1H11:33:000
23729996121,0cyclictest7475-1kworker/0:2H09:25:380
23729996121,0cyclictest12924-1kworker/0:2H11:02:530
23729996118,0cyclictest0-21swapper/009:32:250
81600,0rcu_preempt19-21ksoftirqd/111:56:111
23729996032,0cyclictest21903-21munin-node0
23729996026,0cyclictest25086-21apt-get12:04:460
23729996022,0cyclictest4433-1kworker/0:0H11:38:120
23729996022,0cyclictest0-21swapper/010:16:030
23729995929,0cyclictest25349-1kworker/0:0H07:15:000
23729995926,0cyclictest0-21swapper/011:09:460
23729995920,0cyclictest20129-21ls09:40:070
10050590,0irq/346-484840030328-1kworker/0:0H09:21:100
81580,0rcu_preempt3-21ksoftirqd/011:54:580
23729995831,0cyclictest0-21swapper/010:33:550
23729995823,0cyclictest30982-1kworker/0:2H09:59:190
23729995823,0cyclictest30982-1kworker/0:2H09:59:190
81570,0rcu_preempt7511-21ping08:19:540
81570,0rcu_preempt7511-21ping08:19:540
81570,0rcu_preempt3-21ksoftirqd/009:44:500
75892570,0sleep010050irq/346-484840007:58:430
75892570,0sleep010050irq/346-484840007:58:430
23729995725,0cyclictest15914-21munin-run12:34:340
23729995724,0cyclictest32620-21wget12:14:510
23729995724,0cyclictest32620-21wget12:14:510
23729995723,0cyclictest2903-21munin-node0
81560,0rcu_preempt3-21ksoftirqd/012:24:460
81560,0rcu_preempt3-21ksoftirqd/010:44:560
23729995626,0cyclictest21679-21ssh11:59:460
23729995626,0cyclictest14358-21apt-get10:19:460
23729995626,0cyclictest12282-1kworker/0:0H08:12:020
23729995626,0cyclictest0-21swapper/009:09:550
23729995625,0cyclictest18921-21latency_hist09:39:350
23729995625,0cyclictest13864-1kworker/0:0H12:34:580
23729995625,0cyclictest12924-1kworker/0:2H11:04:570
23729995623,0cyclictest27001-21ping07:34:520
23729995623,0cyclictest0-21swapper/007:19:520
23729995618,0cyclictest0-21swapper/010:35:270
23729995615,0cyclictest0-21swapper/011:27:100
10050560,0irq/346-48484000-21swapper/012:20:310
10050560,0irq/346-48484000-21swapper/012:13:510
10050560,0irq/346-48484000-21swapper/010:54:530
10050560,0irq/346-48484000-21swapper/010:54:530
81550,0rcu_preempt19-21ksoftirqd/107:28:061
23729995530,0cyclictest24375-21uname07:09:570
23729995526,0cyclictest0-21swapper/010:39:480
23729995524,0cyclictest0-21swapper/010:27:080
23729995522,0cyclictest1892-21meminfo07:40:040
23729995522,0cyclictest1892-21meminfo07:40:040
10050550,0irq/346-484840054-21kswapd009:58:521
10050550,0irq/346-484840054-21kswapd009:58:521
81540,0rcu_preempt3-21ksoftirqd/008:50:010
23729995436,0cyclictest4013-21ssh10:04:470
23729995429,0cyclictest27001-21ping07:44:590
23729995424,0cyclictest17207-1kworker/0:3H08:30:000
23729995424,0cyclictest0-21swapper/011:19:500
23729995424,0cyclictest0-21swapper/011:19:500
23729995423,0cyclictest27250-1kworker/0:0H09:54:290
23729995423,0cyclictest27250-1kworker/0:0H09:54:290
10050540,0irq/346-484840054-21kswapd011:00:011
81530,0rcu_preempt3-21ksoftirqd/008:39:470
81530,0rcu_preempt3-21ksoftirqd/007:50:050
23729995325,0cyclictest26507-21tr08:54:590
23729995322,0cyclictest29787-21grep07:25:100
23729995320,0cyclictest0-21swapper/010:10:010
13150530,0irq/301-480200030615-1kworker/1:1H11:29:501
13150530,0irq/301-480200030615-1kworker/1:1H11:29:501
81520,0rcu_preempt19-21ksoftirqd/111:28:541
23729995225,0cyclictest16246-21diskstats08:24:530
23729995223,0cyclictest0-21swapper/008:34:500
10050520,0irq/346-484840015192-21ssh12:33:181
23729995121,0cyclictest27502-21chrt08:59:400
10050510,0irq/346-484840023728-21cyclictest10:02:131
10050510,0irq/346-484840023122-1kworker/1:1H10:34:551
23729995022,0cyclictest20563-1kworker/0:0H08:45:540
10050500,0irq/346-48484005674-1kworker/1:1H11:40:041
10050500,0irq/346-484840030967-21ssh10:42:061
10050500,0irq/346-48484002707-21ssh12:17:311
10050500,0irq/346-48484002707-21ssh12:17:311
10050500,0irq/346-484840020592-21ssh11:12:551
64612490,0sleep19950irq/345-484840010:53:191
10050490,0irq/346-484840054-21kswapd009:19:391
10050480,0irq/346-48484001920-1kworker/1:0H11:35:031
9950470,0irq/345-48484003846-1kworker/1:1H09:17:251
81470,0rcu_preempt19-21ksoftirqd/108:24:551
81470,0rcu_preempt0-21swapper/109:45:511
10050470,0irq/346-48484007357-1kworker/1:3H07:59:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional