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2025-12-06 - 08:30

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 Sat Dec 06, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501560,0irq/46-4a10000026823-21sshd19:05:320
273969910581,0cyclictest21581-21ssh23:45:050
273969910270,0cyclictest19979-21ssh21:23:340
273969910170,0cyclictest25192-21ssh23:52:540
273969910170,0cyclictest14210-21ssh22:20:030
273969910169,0cyclictest9566-21ssh23:19:460
273969910167,0cyclictest7916-21cron00:25:010
273969910166,0cyclictest25758-21ssh21:35:220
273969910069,0cyclictest30568-21chrt21:45:500
273969910069,0cyclictest28367-21ssh22:50:190
273969910068,0cyclictest7409-21ssh22:05:320
273969910068,0cyclictest23167-21ssh21:30:100
273969910068,0cyclictest22612-21ssh21:29:100
27396999976,0cyclictest16786-21ssh22:25:350
27396999970,0cyclictest22042-21ssh22:36:530
27396999970,0cyclictest15190-21ssh23:31:360
27396999969,0cyclictest19884-21ssh22:32:170
27396999968,0cyclictest333-21ssh21:50:150
27396999968,0cyclictest26841-21ssh23:56:210
27396999967,0cyclictest5600-21ssh00:20:040
27396999965,0cyclictest1972-21ssh00:12:270
27396999879,0cyclictest16422-21ssh21:16:010
27396999878,0cyclictest25181-21ssh22:43:390
27396999868,0cyclictest10509-21ssh22:12:150
27396999867,0cyclictest8174-21ssh00:25:210
27396999867,0cyclictest15001-21ssh00:39:590
27396999867,0cyclictest12360-21ssh22:16:120
27396999866,0cyclictest677-21ssh00:09:490
27396999866,0cyclictest32531-21ssh22:59:270
27396999866,0cyclictest28666-21chrt00:00:060
27396999866,0cyclictest21140-21ssh23:44:190
27396999866,0cyclictest13330-21ssh23:27:410
27396999779,0cyclictest28698-21munin-node19:15:060
27396999778,0cyclictest5526-21ssh22:01:320
27396999767,0cyclictest6041-21ssh23:12:040
27396999675,0cyclictest11888-21modprobe20:59:550
27396999675,0cyclictest10705-21sshd20:51:340
27396999666,0cyclictest17981-21ssh23:37:380
27396999663,0cyclictest28126-21ssh21:40:340
27396999578,0cyclictest4007-21ssh23:07:440
27396999574,0cyclictest2759-21ssh21:55:360
27396999568,0cyclictest12653-21awk00:35:010
27396999565,0cyclictest28056-21ssh22:49:530
27396999472,0cyclictest1256-21seq23:01:480
27396999472,0cyclictest12199-21runrttasks21:01:340
27396999463,0cyclictest10517-21ssh23:21:360
27396999461,0cyclictest13773-21ssh21:10:160
27396999365,0cyclictest9948-21runrttasks20:46:240
27396999363,0cyclictest27367-21apt-get19:10:170
27396999274,0cyclictest8270-21cat20:34:560
27396999271,0cyclictest6729-21latency_hist20:24:550
27396999174,0cyclictest2231-21latency_hist19:54:550
27396999073,0cyclictest6002-21latency_hist20:19:560
27396999072,0cyclictest8197-21date20:34:550
27396999072,0cyclictest4133-21seq20:07:200
27396999070,0cyclictest740-21sh19:44:520
27396999070,0cyclictest30975-21munin-run19:29:510
27396999070,0cyclictest1679-21runrttasks19:50:310
27396999069,0cyclictest744-21latency_hist19:44:550
27396998972,0cyclictest29618-21modprobe19:19:540
27396998971,0cyclictest31264-21runrttasks19:31:220
27396998872,0cyclictest32378-21sshd19:39:310
27396998871,0cyclictest3158-21seq20:00:240
27396998868,0cyclictest4535-21cat20:09:550
27396998868,0cyclictest13080-21chrt21:07:470
27396998771,0cyclictest9393-21chrt20:42:500
27396998767,0cyclictest7374-21seq20:29:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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