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2026-01-28 - 15:52
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

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Default latency plot of shadow in rack #e, slot #5

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot5s.osadl.org (updated Wed Jan 28, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2516899270,26cyclictest10591-21runrttasks07:48:102
2516499260,25cyclictest29336-21sh09:19:421
2516499260,25cyclictest10390-21users11:33:181
25172992523,1cyclictest2135-21perf08:35:003
25172992523,1cyclictest13414-21sh12:38:143
2517299250,1cyclictest27409-21taskset09:48:203
2516899250,24cyclictest18920-21diskmemload12:37:192
2516899250,24cyclictest18920-21diskmemload12:11:422
2516899250,24cyclictest18920-21diskmemload10:41:592
2516899250,24cyclictest0-21swapper/210:14:212
2516899250,1cyclictest151rcu_preempt10:03:142
25164992523,1cyclictest25640-21apt-get10:18:091
2516499250,24cyclictest4744-21sh10:58:141
2516499250,24cyclictest0-21swapper/111:58:161
2516499250,24cyclictest0-21swapper/109:43:481
2516099250,25cyclictest0-21swapper/012:25:510
2516099250,23cyclictest0-21swapper/009:33:220
25172992422,1cyclictest0-21swapper/309:24:533
25172992421,2cyclictest6914-21ssh09:59:423
25172992421,2cyclictest2774-21perf07:30:013
2517299240,2cyclictest5949-21sh12:30:323
2517299240,23cyclictest30198-21apt-get08:28:103
2517299240,23cyclictest20570-21sh09:43:003
2517299240,1cyclictest29228-21sh09:50:123
2517299240,0cyclictest151rcu_preempt11:15:473
25168992423,1cyclictest18920-21diskmemload11:48:172
25168992422,1cyclictest0-21swapper/212:00:282
25168992422,1cyclictest0-21swapper/211:20:152
2516899240,23cyclictest18920-21diskmemload12:28:202
2516899240,23cyclictest18920-21diskmemload09:16:472
2516899240,23cyclictest0-21swapper/212:23:062
2516899240,23cyclictest0-21swapper/212:05:342
2516899240,23cyclictest0-21swapper/212:05:342
2516899240,23cyclictest0-21swapper/211:16:562
2516899240,23cyclictest0-21swapper/210:57:272
2516899240,23cyclictest0-21swapper/210:33:452
2516899240,23cyclictest0-21swapper/209:43:182
2516899240,0cyclictest18920-21diskmemload09:58:012
25164992422,2cyclictest18920-21diskmemload10:45:171
2516499240,2cyclictest9790-21sh12:03:211
2516499240,2cyclictest22190-21grep11:45:001
2516499240,24cyclictest18920-21diskmemload12:14:161
2516499240,24cyclictest18920-21diskmemload10:32:231
2516499240,24cyclictest0-21swapper/111:27:521
2516499240,23cyclictest6960-21munin-plugin-st08:45:001
2516499240,23cyclictest24261-21latency_hist09:15:011
2516499240,23cyclictest16533-21ssh11:39:351
2516499240,23cyclictest0-21swapper/111:10:551
25160992423,1cyclictest27400-21/usr/sbin/munin10:18:180
25160992419,1cyclictest10774-21memory10:03:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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