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2026-03-19 - 12:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack3slot5.osadl.org.osadl.org (updated Thu Mar 19, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151151800,0ktimers/0165761sleep19:08:490
172829951992,0cyclictest3598-21munin-run20:43:190
1728299508119,0cyclictest25352-21mailstats19:53:290
1728299489100,0cyclictest1553-21grep20:33:300
1728299471120,0cyclictest0-21swapper00:21:120
1728299470110,0cyclictest28635-21ssh23:22:500
1514630,0ktimers/038491sleep20:43:520
1514600,0ktimers/0254971sleep22:58:440
1514600,0ktimers/0185771sleep19:20:530
1514580,0ktimers/0295151sleep20:12:480
1514580,0ktimers/0200821sleep22:18:560
1514560,0ktimers/0300851sleep23:32:040
1728299455120,0cyclictest14838-21ssh21:43:410
1728299454129,0cyclictest0-21swapper21:03:460
1728299453115,0cyclictest4768-21latency_hist20:48:220
172829945230,0cyclictest6756-21apt-get00:34:180
172829944637,0cyclictest16231-21chrt21:53:220
1514460,0ktimers/031071sleep00:07:440
1728299445142,0cyclictest0-21swapper21:17:090
1514420,0ktimers/0197731sleep19:27:410
1728299441141,0cyclictest5459-21date00:23:420
1728299440133,0cyclictest0-21swapper19:33:480
1514380,0ktimers/0269971sleep19:59:560
1728299437140,0cyclictest27436-21ssh23:14:110
172829943097,0cyclictest0-21swapper21:54:270
172829943086,0cyclictest11840-21chrt21:24:000
172829942876,0cyclictest3460-21snmpd23:04:580
1728299428122,0cyclictest0-21swapper22:01:130
1514260,0ktimers/078801sleep21:02:330
172829942580,0cyclictest0-21swapper23:25:430
1728299425121,0cyclictest0-21swapper00:28:460
1514250,0ktimers/03311sleep20:28:140
1728299424128,0cyclictest0-21swapper19:13:350
1728299424119,0cyclictest0-21swapper19:45:430
1728299424115,0cyclictest0-21swapper00:13:550
1728299423120,0cyclictest0-21swapper00:00:120
1728299423119,0cyclictest0-21swapper23:38:100
1728299423119,0cyclictest0-21swapper22:44:560
172829942283,0cyclictest886-21runrttasks23:51:290
1728299422116,0cyclictest7891-21ssh00:40:370
1728299420118,0cyclictest0-21swapper22:26:300
1728299419134,0cyclictest6842-21cron20:58:120
1514180,0ktimers/0218271sleep22:29:580
1514110,0ktimers/0305201sleep20:16:310
1728299410128,0cyclictest11256-21ssh21:19:260
1514090,0ktimers/0126381sleep21:29:540
1728299408108,0cyclictest0-21swapper00:10:370
172829939870,0cyclictest0-21swapper22:54:290
1728299396118,0cyclictest0-21swapper19:28:250
172829939270,0cyclictest14214-21ssh21:38:400
1728299390117,0cyclictest0-21swapper22:07:100
1728299384103,0cyclictest0-21swapper20:21:290
1728299374120,0cyclictest0-21swapper23:39:460
172829937290,0cyclictest0-21swapper21:38:110
1513680,0ktimers/0247521sleep22:53:230
1728299367105,0cyclictest19229-21ssh22:13:030
1513650,0ktimers/0231871sleep22:40:010
1513520,0ktimers/0284801sleep20:08:170
1728299346119,0cyclictest0-21swapper23:47:340
1513430,0ktimers/0224401sleep22:33:380
525503290,0irq/11-sym53c8x130250irq/15-NE200021:13:120
525503250,0irq/11-sym53c8x130250irq/15-NE200020:29:110
1513070,0ktimers/0229111sleep19:41:010
1302502640,0irq/15-NE200052550irq/11-sym53c8xx23:55:300
1512620,0ktimers/0196941sleep22:16:400
172829926090,0cyclictest25232-21cat19:53:170
172829924691,0cyclictest0-21swapper23:09:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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