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2025-11-19 - 18:26

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 792 highest latencies:
System rack9slot8s.osadl.org (updated Wed Nov 19, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
818501740,0irq/46-4a10000030752-21seq07:05:130
313699910663,0cyclictest20105-21idleruntime-cro09:14:550
31369999981,0cyclictest32584-21df_inode07:15:110
31369999980,0cyclictest5804-21ssh12:10:360
31369999966,0cyclictest22800-21chrt10:29:000
31369999880,0cyclictest16388-21ssh12:32:580
31369999858,0cyclictest15184-21lldpd10:40:340
31369999856,0cyclictest11084-21ssh12:21:420
31369999779,0cyclictest22493-21apt09:19:550
31369999778,0cyclictest9635-21ssh12:18:460
31369999777,0cyclictest1915-21apt-get09:45:450
31369999763,0cyclictest29410-21ssh09:34:310
31369999760,0cyclictest17840-21ssh12:35:560
31369999679,0cyclictest7352-21modprobe07:59:530
31369999678,0cyclictest26147-21munin-run11:45:010
31369999675,0cyclictest29466-21ssh11:51:580
31369999675,0cyclictest16887-21ssh10:16:290
31369999666,0cyclictest23841-21rm11:40:020
31369999664,0cyclictest5488-21ls12:10:020
31369999663,0cyclictest3680-21runrttasks10:57:010
31369999661,0cyclictest26018-21ssh09:27:150
31369999574,0cyclictest4314-21apt-get09:50:300
31369999561,0cyclictest31825-21ssh10:48:030
31369999560,0cyclictest21096-21ssh11:34:150
31369999558,0cyclictest12286-21ssh10:06:390
31369999476,0cyclictest1406-21ssh12:01:150
31369999472,0cyclictest23772-21ssh09:22:290
31369999471,0cyclictest10263-21ssh10:02:210
31369999374,0cyclictest1916-21latency_hist09:44:550
31369999363,0cyclictest5963-21ssh11:01:520
31369999360,0cyclictest17752-21ssh11:27:000
31369999360,0cyclictest14335-21ssh11:19:550
31369999358,0cyclictest24368-21ssh10:32:140
31369999275,0cyclictest9012-21ssh11:08:270
31369999275,0cyclictest14794-21ssh10:12:030
31369999274,0cyclictest11783-21apt08:29:520
31369999273,0cyclictest15150-21ssh11:21:240
31369999270,0cyclictest8283-21ssh09:58:120
31369999269,0cyclictest20204-21ssh10:23:350
31369999268,0cyclictest5099-21sshd07:45:260
31369999263,0cyclictest26462-21ssh11:45:310
31369999259,0cyclictest10633-21sh11:11:510
31369999173,0cyclictest32093-21munin-run07:14:540
31369999169,0cyclictest25591-21apt-get10:35:150
31369999156,0cyclictest5833-21sshd07:50:260
31369999074,0cyclictest29734-21ssh09:34:590
31369999069,0cyclictest12939-21ssh12:25:350
31369999068,0cyclictest1802-21ssh10:53:140
31369999063,0cyclictest1804-21apt-config07:24:540
31369999060,0cyclictest31958-21ssh11:57:180
31369998961,0cyclictest1765-21apt-get07:25:190
31369998870,0cyclictest13253-21sh08:39:540
31369998867,0cyclictest14144-21sshd08:45:080
31369998769,0cyclictest3356-21sshd07:34:250
31369998768,0cyclictest8990-21sshd08:10:280
31369998670,0cyclictest17747-21ssh09:09:560
31369998668,0cyclictest9725-21sshd08:15:270
31369998667,0cyclictest8820-21idleruntime-cro08:09:530
31369998667,0cyclictest16984-21apt09:04:540
31369998664,0cyclictest3729-21sshd07:36:260
31369998568,0cyclictest8074-21modprobe08:04:510
31369998566,0cyclictest4930-21munin-run07:44:530
31369998560,0cyclictest15495-21latency_hist08:54:550
31369998469,0cyclictest12067-21chrt08:31:200
31369998467,0cyclictest16229-21apt08:59:550
31369998455,0cyclictest10805-21seq08:23:000
31369998264,0cyclictest13390-21chrt08:39:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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