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2025-11-06 - 02:52

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 376 highest latencies:
System rack9slot8s.osadl.org (updated Thu Nov 06, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501760,0irq/46-4a10000015201-21runrttasks19:05:040
34059910064,0cyclictest13143-21rm00:17:290
3405999774,0cyclictest10765-21munin-run21:54:560
3405999756,0cyclictest18823-21ssh00:29:380
3405999665,0cyclictest26438-21ssh22:28:170
3405999578,0cyclictest4849-21munin-run00:00:020
3405999558,0cyclictest14558-21runrttasks20:21:540
3405999557,0cyclictest21436-21ssh00:35:050
3405999455,0cyclictest6305-21seq19:26:080
3405999370,0cyclictest16548-21ssh00:24:470
3405999358,0cyclictest21808-21diskmemload22:55:160
3405999272,0cyclictest1361-21ssh22:44:050
3405999268,0cyclictest11710-21sh23:05:470
3405999261,0cyclictest20425-21ssh22:15:200
3405999254,0cyclictest1409-21kworker/u2:600:05:010
3405999169,0cyclictest10762-21apt-get21:55:460
3405999168,0cyclictest30694-21ssh21:28:310
3405999153,0cyclictest21527-21ssh23:26:330
3405999074,0cyclictest26583-21munin-run21:19:550
3405999066,0cyclictest2736-21ssh22:46:570
3405999064,0cyclictest3651-21munin-run21:39:560
3405999055,0cyclictest21808-21diskmemload23:17:280
3405999053,0cyclictest10146-21ssh23:02:410
3405998967,0cyclictest6049-21munin-run19:24:510
3405998967,0cyclictest4367-21ssh22:50:210
3405998966,0cyclictest22980-21chrt22:20:450
3405998958,0cyclictest581-21ssh23:50:400
3405998958,0cyclictest16716-21sendmail-mta22:07:260
3405998954,0cyclictest18104-21sshd20:45:380
3405998872,0cyclictest30185-21ssh22:36:140
3405998855,0cyclictest31656-21ssh23:48:030
3405998855,0cyclictest18915-21ssh23:20:590
3405998850,0cyclictest23155-21sshd21:12:380
3405998769,0cyclictest23964-21sh23:31:430
3405998768,0cyclictest26945-21ssh23:38:070
3405998768,0cyclictest20676-21ssh00:33:330
3405998768,0cyclictest15481-21ssh23:13:530
3405998767,0cyclictest5249-21ssh21:43:140
3405998764,0cyclictest6977-21ssh21:46:490
3405998764,0cyclictest13454-21ssh22:00:220
3405998669,0cyclictest8004-21ssh00:06:260
3405998668,0cyclictest29517-21munin-run22:34:570
3405998665,0cyclictest28540-21ssh21:24:010
3405998659,0cyclictest20165-21ssh22:14:570
3405998656,0cyclictest8843-21sshd19:43:360
3405998656,0cyclictest10526-21ssh00:11:510
3405998655,0cyclictest1046-21ssh21:34:300
3405998654,0cyclictest29558-21ssh23:43:370
3405998569,0cyclictest9748-21munin-run19:49:520
3405998560,0cyclictest4127-21/usr/sbin/munin19:14:540
3405998551,0cyclictest21387-21sshd21:06:380
3405998465,0cyclictest10481-21munin-run19:54:530
3405998462,0cyclictest7519-21munin-run19:34:510
3405998461,0cyclictest20902-21sshd21:03:380
3405998458,0cyclictest13422-21cron20:14:520
3405998452,0cyclictest15270-21sshd20:26:370
3405998366,0cyclictest4578-21users19:15:070
3405998362,0cyclictest20321-21ls20:59:540
3405998261,0cyclictest17744-21sshd20:43:390
3405998166,0cyclictest6312-21kworker/u2:019:36:580
3405998166,0cyclictest11440-21seq20:00:410
3405998165,0cyclictest15794-21modprobe20:29:550
3405998164,0cyclictest18735-21latency_hist20:49:580
3405998161,0cyclictest10573-21latency_hist19:54:540
3405998064,0cyclictest12975-21kworker/u2:120:34:550
3405998055,0cyclictest15184-21lldpd20:17:290
3405997859,0cyclictest12701-21idleruntime-cro20:09:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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