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2025-12-02 - 08:56
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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 rackbslot7.osadl.org (updated Tue Dec 02, 2025 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22570991123,28cyclictest355-21runrttasks22:59:010
22570991104,30cyclictest355-21runrttasks20:57:320
22570991082,29cyclictest18210-21sh00:28:550
22575991053,50cyclictest15833-21ssh23:29:111
22575991053,50cyclictest15833-21ssh23:29:111
22570991052,27cyclictest5501-21seq22:17:030
22570991033,32cyclictest15740-21apt-get23:28:570
22570991033,32cyclictest15740-21apt-get23:28:570
22575991023,34cyclictest22749-21apt-get19:08:551
22570991024,31cyclictest29702-21diskmemload21:18:560
22570991022,31cyclictest31255-21runrttasks22:04:440
22570991015,10cyclictest0-21swapper/019:08:480
22570991013,9cyclictest0-21swapper/020:34:000
22570991013,8cyclictest0-21swapper/023:58:590
22570991013,30cyclictest17907-21idleruntime-cro00:28:430
22570991012,30cyclictest355-21runrttasks21:09:310
22570991012,23cyclictest355-21runrttasks20:53:190
22570991012,22cyclictest22741-21runrttasks20:45:330
22570991003,85cyclictest15248-21ssh22:33:460
225709910032,61cyclictest0-21swapper/023:09:120
225709910032,61cyclictest0-21swapper/023:09:120
2257599993,6cyclictest0-21swapper/123:39:001
2257599993,6cyclictest0-21swapper/123:39:001
2257099994,29cyclictest27770-21cut23:49:050
2257099993,23cyclictest355-21runrttasks22:09:420
2257099992,24cyclictest1592-21seq19:41:380
2257099992,23cyclictest11173-21taskset20:10:220
2258599983,54cyclictest15740-21apt-get23:29:022
2258599983,54cyclictest15740-21apt-get23:29:022
22575999857,34cyclictest22557-21cyclictest19:54:111
22575999857,34cyclictest22557-21cyclictest19:54:111
2257099984,12cyclictest0-21swapper/022:23:560
22570999840,52cyclictest0-21swapper/019:44:210
2257099983,24cyclictest24535-21grep22:49:050
2257099982,28cyclictest355-21runrttasks21:18:190
2257099982,24cyclictest29374-21seq21:04:450
2257099982,24cyclictest29374-21seq21:04:450
2257099982,23cyclictest29151-21seq19:26:030
2257099982,23cyclictest29151-21seq19:26:030
2257099982,23cyclictest20080-21seq20:39:210
2257099974,7cyclictest0-21swapper/021:58:580
2257099973,29cyclictest355-21runrttasks20:07:060
2257099972,24cyclictest14429-21seq20:20:300
2257099972,22cyclictest355-21runrttasks23:05:500
2257099972,22cyclictest355-21runrttasks23:05:500
22570999645,45cyclictest9671-21/usr/sbin/munin23:19:170
22570999645,45cyclictest9671-21/usr/sbin/munin23:19:170
2257099964,26cyclictest22884-21runrttasks21:51:020
2257099964,26cyclictest22884-21runrttasks21:51:020
2257099963,28cyclictest355-21runrttasks23:54:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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