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2026-03-01 - 13:48
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack9slot8s.osadl.org (updated Sun Mar 01, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
947501530,0irq/33-mmc01011-21kworker/0:319:07:370
81950830,0irq/46-4a10000030461-21ssh21:29:590
81950800,0irq/46-4a10000027011-21ssh23:39:490
81950800,0irq/46-4a10000020479-21apt00:35:010
81950790,0irq/46-4a1000001292-21ssh22:45:020
81950780,0irq/46-4a1000009315-21kworker/u2:200:25:510
81950780,0irq/46-4a1000004497-21ssh21:43:300
81950780,0irq/46-4a10000018235-21ssh23:20:490
54752780,0sleep05242-21kworker/u2:019:28:190
82050770,0irq/47-4a10000031366-21sendmail22:40:010
81950770,0irq/46-4a1000005892-21ssh21:46:210
81950770,0irq/46-4a10000017511-21ssh23:19:300
81950770,0irq/46-4a10000012113-21runrttasks23:06:090
82050760,0irq/47-4a1000003656-21kworker/u2:022:05:290
82050760,0irq/47-4a10000019449-21apt22:15:010
81950760,0irq/46-4a1000006081-21kworker/u2:221:57:270
82050750,0irq/47-4a1000003739-21apt-config22:50:060
81950750,0irq/46-4a1000009076-21ssh23:01:190
81950750,0irq/46-4a1000009-21ksoftirqd/000:38:490
81950750,0irq/46-4a1000006707-21ssh00:05:310
81950750,0irq/46-4a10000021525-21ssh22:19:230
38222750,0sleep03707-21kworker/u2:119:17:060
239442750,0chrt20544-21kworker/u2:121:16:070
122262750,0chrt12135-21kworker/u2:320:12:170
82050740,0irq/47-4a10000020189-21kworker/u2:422:21:290
81950740,0irq/46-4a1000004355-21sh00:00:280
81950740,0irq/46-4a10000023730-21ssh23:32:420
81950740,0irq/46-4a10000011468-21runrttasks00:15:440
81950740,0irq/46-4a10000010476-21sshd00:13:450
78152740,0sleep022644-21kworker/u2:622:58:450
100502740,0sleep09840-21kworker/u2:519:57:510
82050730,0irq/47-4a10000026370-21kworker/u2:621:32:030
82050730,0irq/47-4a10000012931-21kworker/u2:522:04:170
81950730,0irq/46-4a10000032153-21ssh23:50:360
81950730,0irq/46-4a10000029915-21kworker/u2:022:50:100
81950730,0irq/46-4a10000019310-21latency_hist21:00:040
81950730,0irq/46-4a10000015780-21ssh00:25:030
81950730,0irq/46-4a10000012086-21snmpd21:13:200
153482737,0sleep015354-21ssh23:14:540
95372720,0sleep08464-21kworker/u2:119:54:400
82472720,0chrt7714-21kworker/u2:019:45:090
82050720,0irq/47-4a10000026370-21kworker/u2:621:22:070
82050720,0irq/47-4a1000002164-21ssh21:38:380
82050720,0irq/47-4a10000020187-21kworker/u2:322:34:270
81950720,0irq/46-4a1000006081-21kworker/u2:222:26:330
81950720,0irq/46-4a10000028686-21ssh23:43:170
81950720,0irq/46-4a10000010616-21kworker/u2:120:05:000
71252720,0sleep06940-21kworker/u2:419:38:110
25532720,0chrt32629-21kworker/u2:223:56:430
168772720,0sleep016569-21kworker/u2:020:43:400
81950710,0irq/46-4a1000003656-21kworker/u2:021:55:010
157392710,0sleep012126-21kworker/u2:220:35:370
153042710,0chrt14717-21kworker/u2:420:33:020
82050700,0irq/47-4a1000006758-21kworker/u2:223:29:520
81950700,0irq/46-4a10000019641-21runrttasks21:00:290
180862700,0chrt18067-21kworker/u2:220:51:330
129152700,0chrt12895-21kworker/u2:420:16:520
81950690,0irq/46-4a10000029809-21ssh23:45:340
61752680,0chrt5995-21kworker/u2:219:33:000
144112680,0sleep07714-21kworker/u2:020:26:490
81950670,0irq/46-4a10000011823-21cron20:10:010
81950650,0irq/46-4a1000000-21swapper21:08:180
81950610,0irq/46-4a1000001886-1kworker/u3:019:11:060
2314995141,0cyclictest81950irq/46-4a10000020:22:170
2314994936,0cyclictest94750irq/33-mmc020:47:290
2314994833,0cyclictest7912-21runrttasks19:43:250
2314994632,0cyclictest4472-21runrttasks19:21:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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