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2025-09-16 - 12:26

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 Tue Sep 16, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819501510,0irq/47-4a10000022926-21runrttasks19:08:110
231749910999,0cyclictest294102sleep000:10:060
23174999055,0cyclictest14087-21ssh22:28:290
23174998863,0cyclictest24553-21runrttasks19:15:580
23174998762,0cyclictest1713-21munin-run20:19:530
23174998758,0cyclictest5829-21ssh00:29:010
23174998666,0cyclictest14077-21apt21:19:550
23174998562,0cyclictest22148-21ssh22:45:300
23174998558,0cyclictest30066-21rm21:53:370
23174998558,0cyclictest1493-21ssh22:01:370
23174998463,0cyclictest8659-21ssh22:16:530
23174998461,0cyclictest28858-21sendmail-msp22:59:580
23174998459,0cyclictest20285-21ssh22:41:350
23174998457,0cyclictest17510-21ssh22:35:390
23174998442,0cyclictest19627-21ssh21:31:280
23174998368,0cyclictest7611-21ssh23:23:520
23174998365,0cyclictest3492-21ssh22:05:440
23174998360,0cyclictest3755-21ssh00:24:390
23174998360,0cyclictest26925-21munin-run00:05:000
23174998359,0cyclictest23600-21ssh21:39:560
23174998359,0cyclictest14744-21sshd21:21:090
23174998355,0cyclictest25142-21ssh21:43:090
23174998348,0cyclictest27024-21cat00:05:030
23174998266,0cyclictest874-21ssh23:09:330
23174998261,0cyclictest15279-21ssh22:30:540
23174998261,0cyclictest13302-21ssh23:35:550
23174998261,0cyclictest1092-21ssh00:19:020
23174998257,0cyclictest11731-21ssh22:23:270
23174998256,0cyclictest27572-21runrttasks21:48:180
23174998162,0cyclictest29227-21ssh23:00:360
23174998161,0cyclictest3590-21ssh23:15:090
23174998160,0cyclictest15459-21ssh23:40:250
23174998159,0cyclictest19999-21ssh23:50:080
23174998149,0cyclictest11833-21ssh23:32:520
23174998145,0cyclictest10778-21ssh00:39:330
23174998063,0cyclictest1534-21ssh23:10:460
23174998062,0cyclictest575-21/usr/sbin/munin22:00:000
23174998062,0cyclictest24886-21ssh22:51:230
23174998059,0cyclictest22647-21ssh23:55:360
23174998058,0cyclictest7746-21ssh00:33:030
23174998057,0cyclictest7667-21http20:59:580
23174998057,0cyclictest2937-21sshd20:27:540
23174998057,0cyclictest28422-21sshd19:42:060
23174998056,0cyclictest30444-21munin-run19:54:520
23174998046,0cyclictest25589-21sshd19:23:040
23174998045,0cyclictest32213-21kworker/u2:120:39:530
23174997960,0cyclictest17664-21ssh21:27:220
23174997957,0cyclictest8198-21seq23:25:020
23174997957,0cyclictest23540-21sshd19:12:060
23174997948,0cyclictest31932-21apt20:04:510
23174997948,0cyclictest18076-21ssh23:46:030
23174997860,0cyclictest31182-21munin-run19:59:540
23174997858,0cyclictest32669-21munin-run20:09:540
23174997857,0cyclictest10881-21ssh21:13:080
23174997856,0cyclictest6253-21ssh22:11:440
23174997845,0cyclictest26106-21kworker/u2:019:39:500
23174997760,0cyclictest3932-21munin-run20:34:540
23174997758,0cyclictest29511-21apt19:49:500
23174997757,0cyclictest7629-21apt-get21:00:290
23174997756,0cyclictest15173-21snmpd20:46:150
23174997754,0cyclictest4943-21sshd20:41:070
23174997661,0cyclictest23172-21cyclictest20:23:210
23174997655,0cyclictest9329-21/usr/sbin/munin21:09:570
23174997558,0cyclictest6893-21munin-run20:54:540
23174997356,0cyclictest26652-21latency_hist19:29:530
23174997254,0cyclictest26553-21munin-run19:29:520
23174997246,0cyclictest32213-21kworker/u2:120:14:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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