You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-23 - 03:27

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 792 highest latencies:
System rackaslot5s.osadl.org (updated Sat May 23, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811420,0rcu_preempt3-21ksoftirqd/020:13:110
811360,0rcu_preempt3-21ksoftirqd/022:37:310
811350,0rcu_preempt3-21ksoftirqd/021:48:430
811020,0rcu_preempt3-21ksoftirqd/021:46:440
81780,0rcu_preempt851-21rngd22:01:500
81770,0rcu_preempt3-21ksoftirqd/021:13:050
81750,0rcu_preempt3-21ksoftirqd/021:36:540
81730,0rcu_preempt3-21ksoftirqd/022:15:130
10050730,0irq/346-484840023423-1kworker/0:0H00:28:560
9950710,0irq/345-4848400171rcuc/123:19:371
81710,0rcu_preempt3-21ksoftirqd/022:29:190
81710,0rcu_preempt3-21ksoftirqd/022:09:080
10050700,0irq/346-484840026643-1kworker/0:0H22:57:060
10050700,0irq/346-484840012951-1kworker/0:0H22:07:300
81690,0rcu_preempt3-21ksoftirqd/022:44:580
10050690,0irq/346-48484005552-1kworker/0:3H23:35:250
10050680,0irq/346-484840023732-1kworker/0:0H23:26:060
10050680,0irq/346-484840020856-1kworker/0:1H22:50:560
10050680,0irq/346-4848400181ktimersoftd/100:15:401
10050680,0irq/346-484840017906-1kworker/0:1H22:19:500
10050680,0irq/346-4848400171rcuc/100:31:541
81670,0rcu_preempt3-21ksoftirqd/021:26:200
81670,0rcu_preempt3-21ksoftirqd/000:01:290
10050670,0irq/346-4848400181ktimersoftd/121:15:591
10050670,0irq/346-4848400171rcuc/121:48:061
81660,0rcu_preempt6359-21ssh00:08:070
10050660,0irq/346-484840013672-1kworker/0:0H23:14:130
81650,0rcu_preempt3-21ksoftirqd/023:40:220
10050650,0irq/346-4848400171rcuc/123:26:101
10050630,0irq/346-4848400171rcuc/121:44:371
10050630,0irq/346-4848400171rcuc/100:34:161
9950620,0irq/345-4848400171rcuc/122:05:051
10050620,0irq/346-4848400171rcuc/122:53:271
10050620,0irq/346-4848400171rcuc/122:27:171
10050620,0irq/346-4848400171rcuc/100:07:531
81610,0rcu_preempt3-21ksoftirqd/023:52:540
81610,0rcu_preempt19-21ksoftirqd/120:17:211
10050610,0irq/346-4848400171rcuc/123:04:171
10050610,0irq/346-48484001019-1kworker/0:1H00:34:530
81600,0rcu_preempt3-21ksoftirqd/019:13:180
81590,0rcu_preempt3-21ksoftirqd/022:25:480
81590,0rcu_preempt3-21ksoftirqd/000:13:080
10050590,0irq/346-48484003358-1kworker/0:2H00:05:210
10050590,0irq/346-4848400171rcuc/123:50:031
81580,0rcu_preempt19-21ksoftirqd/120:33:131
81570,0rcu_preempt0-21swapper/121:12:441
81560,0rcu_preempt3-21ksoftirqd/023:18:520
81560,0rcu_preempt19-21ksoftirqd/122:39:041
81560,0rcu_preempt19-21ksoftirqd/122:33:491
10050560,0irq/346-4848400563-1kworker/0:2H23:09:080
81550,0rcu_preempt19-21ksoftirqd/121:56:491
10050550,0irq/346-484840020087-1kworker/1:2H21:41:201
81540,0rcu_preempt7622-21aten_rapower_vo21:28:080
81540,0rcu_preempt19-21ksoftirqd/119:53:091
10050540,0irq/346-4848400181ktimersoftd/122:51:011
81530,0rcu_preempt28407-21ping20:08:171
81530,0rcu_preempt28407-21ping20:00:521
81530,0rcu_preempt19-21ksoftirqd/120:03:111
10050530,0irq/346-48484008330-1kworker/0:0H00:18:000
10050530,0irq/346-4848400171rcuc/121:21:571
81520,0rcu_preempt3-21ksoftirqd/022:59:130
81520,0rcu_preempt16038-21apt-get20:58:061
1216599522,0cyclictest596-21ssh00:02:221
81510,0rcu_preempt5253-1kworker/0:3H19:03:150
81510,0rcu_preempt3-21ksoftirqd/023:03:210
81510,0rcu_preempt19867-21grep19:28:290
10050510,0irq/346-484840054-21kswapd022:40:270
9950500,0irq/345-48484000-21swapper/023:53:320
81500,0rcu_preempt54-21kswapd022:15:511
81500,0rcu_preempt22001-21kworker/1:223:53:081
81500,0rcu_preempt19-21ksoftirqd/120:18:211
1216599502,0cyclictest5339-21ssh21:58:051
81490,0rcu_preempt3-21ksoftirqd/021:18:190
81490,0rcu_preempt19-21ksoftirqd/120:25:061
1216599496,0cyclictest12862-21taskset23:09:141
1216599495,0cyclictest32705-1kworker/1:0H21:28:101
1216599495,0cyclictest17554-21ssh23:13:491
1216599491,0cyclictest19161-21diskmemload21:23:041
1216599491,0cyclictest11093-21apt-get20:43:051
10050490,0irq/346-484840054-21kswapd023:43:510
10050490,0irq/346-484840011027-21ssh00:12:541
81480,0rcu_preempt9664-21diskstats20:38:091
81480,0rcu_preempt7978-21df_abs20:33:060
81480,0rcu_preempt19-21ksoftirqd/123:43:151
81480,0rcu_preempt19-21ksoftirqd/120:49:481
1216599486,0cyclictest5476-21ssh23:02:391
81470,0rcu_preempt27078-21apt-get19:53:040
81470,0rcu_preempt22349-21dropbear19:38:091
81470,0rcu_preempt19-21ksoftirqd/121:34:041
1216599472,0cyclictest4784-21munin-node1
1216599472,0cyclictest14957-21memory20:53:151
1216599471,0cyclictest9425-21runrttasks23:38:181
1216599471,0cyclictest19161-21diskmemload22:18:111
10050470,0irq/346-484840054-21kswapd023:30:270
10050470,0irq/346-484840012950-1kworker/1:1H22:08:191
81460,0rcu_preempt6160-21apt-get20:28:041
81460,0rcu_preempt28407-21ping20:03:070
81460,0rcu_preempt18248-21kworker/0:000:24:250
1216599462,0cyclictest23804-21apt-get19:43:051
1216599462,0cyclictest0-21swapper/121:03:051
1216599461,0cyclictest25441-21apt-get19:48:041
1216599461,0cyclictest24581-21ssh00:25:581
1216599461,0cyclictest19161-21diskmemload23:28:351
1216599461,0cyclictest19161-21diskmemload00:19:321
10050460,0irq/346-484840054-21kswapd020:43:200
10050460,0irq/346-4848400171rcuc/122:43:281
10050460,0irq/346-48484000-21swapper/021:54:440
81450,0rcu_preempt3-21ksoftirqd/021:40:070
81450,0rcu_preempt3-21ksoftirqd/019:08:150
1216599451,0cyclictest17252-21apt-get19:23:051
81440,0rcu_preempt851-21rngd19:27:240
81440,0rcu_preempt4419-21kworker/0:020:48:290
81440,0rcu_preempt28407-21ping20:08:100
81440,0rcu_preempt19-21ksoftirqd/119:17:141
1216599442,0cyclictest15449-21ping19:29:181
1216599441,0cyclictest19161-21diskmemload22:28:091
81430,0rcu_preempt3-21ksoftirqd/020:53:040
81430,0rcu_preempt3-21ksoftirqd/019:58:150
81430,0rcu_preempt19-21ksoftirqd/119:03:181
1216599436,0cyclictest20635-21wget19:33:051
1216599432,0cyclictest12525-21munin-node1
10050430,0irq/346-484840019998-21ssh21:08:130
81420,0rcu_preempt3-21ksoftirqd/020:18:100
81420,0rcu_preempt19210-21latency_hist21:07:550
1216599421,0cyclictest15618-21munin-node1
1216499428,0cyclictest3-21ksoftirqd/020:23:050
10050420,0irq/346-484840024986-1kworker/0:2H19:48:200
81410,0rcu_preempt3-21ksoftirqd/021:02:160
81410,0rcu_preempt3-21ksoftirqd/020:38:050
81410,0rcu_preempt3-21ksoftirqd/019:47:100
10050410,0irq/346-484840015449-21ping19:38:180
81400,0rcu_preempt3-21ksoftirqd/020:28:220
1216499401,0cyclictest1007-21dropbear19:18:090
81390,0rcu_preempt3-21ksoftirqd/019:32:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional