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2025-11-28 - 21:07

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Fri Nov 28, 2025 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30333212098,16sleep10-21swapper/107:06:211
29838211896,15sleep20-21swapper/207:05:222
30420211793,19sleep00-21swapper/007:07:280
29847210987,15sleep30-21swapper/307:05:233
300582760,0sleep30-21swapper/311:44:183
191272760,0sleep20-21swapper/210:57:282
63712670,2sleep09-21ksoftirqd/011:18:500
34992670,0sleep30-21swapper/307:20:243
110512670,0sleep00-21swapper/010:49:280
30492630,1sleep30-21swapper/308:40:133
3065199370,2cyclictest0-21swapper/310:30:133
312432260,1sleep0101ktimersoftd/012:20:100
3065099253,17cyclictest0-21swapper/212:19:052
3064999240,7cyclictest0-21swapper/111:05:111
3065099233,18cyclictest0-21swapper/211:22:052
30651992219,2cyclictest9759-21kworker/u8:311:28:053
30650992219,2cyclictest19210-21kworker/u8:309:28:042
30650992219,2cyclictest16716-21kworker/u8:209:16:012
3065099221,19cyclictest0-21swapper/210:44:012
3065099220,17cyclictest0-21swapper/210:25:052
30651992118,2cyclictest32227-21kworker/u8:110:48:063
30651992118,2cyclictest29680-21kworker/u8:012:22:053
30651992118,2cyclictest12282-21kworker/u8:312:38:043
3065199211,18cyclictest0-21swapper/309:30:123
3065099212,2cyclictest6315-21copy10:10:052
30650992118,2cyclictest5759-21kworker/u8:110:21:052
30650992118,2cyclictest5257-21kworker/u8:010:52:052
30650992118,2cyclictest5257-21kworker/u8:010:49:052
30650992118,2cyclictest4857-21kworker/u8:011:18:052
30650992118,2cyclictest32574-21kworker/u8:010:09:052
30650992118,2cyclictest2637-21kworker/u8:212:29:052
30650992118,2cyclictest2637-21kworker/u8:212:29:042
30650992118,2cyclictest25023-21kworker/u8:208:18:052
30650992118,2cyclictest24929-21kworker/u8:312:23:042
30650992118,2cyclictest18954-21kworker/u8:112:06:042
30650992118,2cyclictest14891-21kworker/u8:211:08:052
30650992118,2cyclictest10926-21kworker/u8:109:10:052
3065099210,16cyclictest0-21swapper/209:48:052
3064899211,2cyclictest14735-21diskmemload12:25:100
3064899211,2cyclictest14735-21diskmemload12:25:100
169772210,0sleep00-21swapper/009:45:270
30651992017,2cyclictest4489-21kworker/u8:307:34:053
30651992017,2cyclictest32227-21kworker/u8:110:50:053
30651992017,2cyclictest32227-21kworker/u8:110:40:043
30651992017,2cyclictest24871-21kworker/u8:210:12:023
30651992016,2cyclictest12957-21kworker/u8:209:42:053
3065199201,2cyclictest14735-21diskmemload09:14:053
3065199200,18cyclictest0-21swapper/311:49:053
30650992017,2cyclictest8756-21kworker/u8:007:49:052
30650992017,2cyclictest4488-21kworker/u8:107:40:052
30650992017,2cyclictest4488-21kworker/u8:107:27:052
30650992017,2cyclictest2795-21kworker/u8:108:49:052
30650992017,2cyclictest18954-21kworker/u8:112:13:052
30650992017,2cyclictest16716-21kworker/u8:209:22:052
30650992017,2cyclictest14891-21kworker/u8:211:26:062
3065099201,2cyclictest0-21swapper/209:58:062
3065099200,2cyclictest0-21swapper/211:00:132
3065099200,18cyclictest29-21rcuc/211:10:122
3064999200,2cyclictest7425-21sh11:20:101
193222200,1sleep0101ktimersoftd/010:57:450
30651991916,2cyclictest9759-21kworker/u8:311:38:053
30651991916,2cyclictest9759-21kworker/u8:311:31:053
30651991916,2cyclictest5759-21kworker/u8:110:23:053
30651991916,2cyclictest377-21kworker/u8:109:36:053
30651991916,2cyclictest25570-21kworker/u8:111:19:043
30651991916,2cyclictest16716-21kworker/u8:209:17:053
30651991916,2cyclictest14891-21kworker/u8:210:55:053
3065199191,16cyclictest0-21swapper/310:05:123
3065199190,2cyclictest0-21swapper/311:20:113
30650991916,2cyclictest9759-21kworker/u8:311:51:052
30650991916,2cyclictest9759-21kworker/u8:311:36:022
30650991916,2cyclictest9449-21kworker/u8:212:00:052
30650991916,2cyclictest4488-21kworker/u8:107:38:042
30650991916,2cyclictest377-21kworker/u8:109:40:052
30650991916,2cyclictest3584-21kworker/u8:007:15:052
30650991916,2cyclictest32227-21kworker/u8:110:39:052
30650991916,2cyclictest31073-21kworker/u8:008:39:052
30650991916,2cyclictest24871-21kworker/u8:210:01:052
30650991916,2cyclictest19210-21kworker/u8:309:32:052
3064999191,16cyclictest0-21swapper/110:05:111
30651991815,2cyclictest9449-21kworker/u8:212:03:053
30651991815,2cyclictest420-21kworker/u8:111:53:053
30651991815,2cyclictest3584-21kworker/u8:007:12:043
30651991815,2cyclictest29680-21kworker/u8:012:31:053
30651991815,2cyclictest24871-21kworker/u8:210:03:043
30651991815,2cyclictest23097-21kworker/u8:109:56:053
30651991815,2cyclictest20505-21kworker/u8:008:05:053
30651991815,2cyclictest10926-21kworker/u8:109:07:053
30650991815,2cyclictest31073-21kworker/u8:008:58:062
30650991815,2cyclictest16847-21kworker/u8:207:59:052
30651991714,2cyclictest9449-21kworker/u8:211:56:053
30651991714,2cyclictest5759-21kworker/u8:110:26:013
30651991714,2cyclictest31073-21kworker/u8:008:30:053
30651991714,2cyclictest29680-21kworker/u8:012:28:053
30651991714,2cyclictest29680-21kworker/u8:012:28:043
30651991714,2cyclictest27430-21kworker/u8:009:27:043
30651991714,2cyclictest25023-21kworker/u8:208:35:043
30651991714,2cyclictest25023-21kworker/u8:208:21:053
30651991714,2cyclictest18954-21kworker/u8:112:17:053
30651991714,2cyclictest16847-21kworker/u8:208:00:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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