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2025-04-30 - 10:06

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 Wed Apr 30, 2025 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
819501770,0irq/47-4a1000006968-21runrttasks19:05:200
7583998150,0cyclictest10421-21munin-run00:40:010
7583998144,0cyclictest26551-21ssh22:34:210
7583998052,0cyclictest15829-21ssh22:06:500
7583997758,0cyclictest19348-21runrttasks20:25:110
7583997757,0cyclictest8952-21ssh23:12:360
7583997661,0cyclictest14798-21munin-run19:55:010
7583997658,0cyclictest28215-21ssh21:15:190
7583997656,0cyclictest31207-21apt-get00:10:420
7583997653,0cyclictest3359-21ssh22:58:150
7583997652,0cyclictest6506-21ssh21:42:430
7583997648,0cyclictest32584-21ssh22:50:010
7583997561,0cyclictest81850irq/46-4a10000023:27:490
7583997558,0cyclictest21106-21ssh22:20:160
7583997552,0cyclictest4920-21ssh21:38:360
7583997552,0cyclictest17138-21ssh23:33:530
7583997551,0cyclictest2632-21ssh21:32:580
7583997547,0cyclictest4913-21sshd23:02:050
7583997456,0cyclictest8032-21ssh21:46:410
7583997455,0cyclictest12490-21ssh23:21:460
7583997454,0cyclictest13947-21ssh22:01:540
7583997453,0cyclictest19653-21ssh22:16:400
7583997451,0cyclictest21684-21ssh23:45:310
7583997355,0cyclictest7307-21ssh23:08:230
7583997351,0cyclictest30399-21ssh21:20:570
7583997350,0cyclictest17815-21ssh22:11:580
7583997347,0cyclictest31271-21http00:10:050
7583997344,0cyclictest24671-21kworker/u2:421:12:430
7583997256,0cyclictest10405-21munin-run19:25:020
7583997255,0cyclictest2280-21runrttasks22:53:410
7583997253,0cyclictest23597-21ssh23:50:230
7583997253,0cyclictest2018-21in:imuxsock23:56:420
7583997252,0cyclictest21457-21latency_hist20:40:030
7583997252,0cyclictest21355-21ssh23:44:570
7583997251,0cyclictest27721-21ssh00:00:570
7583997249,0cyclictest2602-21seq00:19:120
7583997248,0cyclictest29970-21ssh22:43:040
7583997246,0cyclictest12581-21modprobe19:40:000
7583997244,0cyclictest12717-21ssh21:58:560
7583997241,0cyclictest10809-21rm21:53:540
7583997239,0cyclictest22928-21sshd22:25:050
7583997155,0cyclictest28751-21run-parts22:40:020
7583997152,0cyclictest2279-21lldpd19:31:100
7583997150,0cyclictest24379-21modprobe21:00:020
7583997138,0cyclictest6460-21chrt00:29:000
7583997054,0cyclictest9-21ksoftirqd/023:39:220
7583997054,0cyclictest8655-21chown19:15:050
7583997052,0cyclictest1431-21ssh21:30:020
7583997049,0cyclictest3582-21ssh00:21:290
7583997044,0cyclictest15301-21chrt19:58:190
7583997039,0cyclictest11172-21ssh23:18:300
7583996953,0cyclictest7864-21seq00:32:430
7583996852,0cyclictest9037-21ntp_states19:15:170
7583996852,0cyclictest17733-21munin-run20:15:020
7583996851,0cyclictest22160-21munin-run20:45:010
7583996849,0cyclictest17008-21munin-run20:10:020
7583996849,0cyclictest16314-21latency_hist20:05:020
7583996838,0cyclictest25850-21runrttasks21:10:020
7583996751,0cyclictest23614-21munin-run20:55:010
7583996750,0cyclictest19222-21apt20:25:000
7583996649,0cyclictest9163-21kworker/u2:719:30:030
7583996649,0cyclictest25096-21munin-run21:05:010
7583996649,0cyclictest22887-21apt20:50:020
7583996649,0cyclictest18479-21munin-run20:20:030
7583996538,0cyclictest13201-21sshd19:44:010
7583996447,0cyclictest20626-21seq20:34:450
7583996446,0cyclictest14065-21apt19:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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