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2026-07-28 - 03:57
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Tue Jul 28, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745013060,0irq/46-4a1000008468-1kworker/u3:019:04:370
8971998861,0cyclictest0-21swapper21:51:570
8971998658,0cyclictest0-21swapper20:20:450
8971998258,0cyclictest0-21swapper22:03:350
8971998256,0cyclictest0-21swapper00:14:310
8971998165,0cyclictest19166-21/usr/sbin/munin19:34:230
8971998062,0cyclictest20514-21/usr/sbin/munin21:14:040
8971998061,0cyclictest17103-21meminfo21:04:020
8971998044,0cyclictest25089-21aten_r4power_po23:03:330
8971997961,0cyclictest19343-21runrttasks00:19:540
8971997854,0cyclictest10127-21fw_forwarded_lo20:43:530
8971997764,0cyclictest7350irq/45-4a10000021:19:130
8971997758,0cyclictest20561-21missed_timers19:39:150
8971997755,0cyclictest29597-21runrttasks23:15:040
8971997754,0cyclictest27327-21meminfo23:09:030
8971997753,0cyclictest0-21swapper22:44:260
8971997741,0cyclictest15331-21irqstats20:59:050
8971997658,0cyclictest8796-21fgrep20:39:230
8971997654,0cyclictest12665-21runrttasks00:01:110
8971997652,0cyclictest13791-21/usr/sbin/munin22:29:120
8971997649,0cyclictest0-21swapper19:27:420
8971997641,0cyclictest15331-21latency00:09:010
8971997557,0cyclictest9540-21/usr/sbin/munin19:08:550
8971997556,0cyclictest11555-21cstates22:23:380
8971997556,0cyclictest0-21swapper21:36:560
8971997555,0cyclictest7941-21aten_r4power_cu22:13:320
8971997554,0cyclictest29975-21runrttasks20:07:590
8971997553,0cyclictest31603-21runrttasks20:12:230
8971997552,0cyclictest3207-21fschecks_count21:58:520
8971997551,0cyclictest1921-21sendmail_mailqu23:29:140
8971997549,0cyclictest0-21swapper21:56:550
8971997545,0cyclictest0-21swapper23:47:260
8971997541,0cyclictest13285-21df20:53:380
8971997460,0cyclictest7350irq/45-4a10000022:33:420
8971997456,0cyclictest20358-21fw_conntrack00:23:510
8971997453,0cyclictest31392-21runrttasks21:45:340
8971997451,0cyclictest19569-21chrt21:11:440
8971997450,0cyclictest16958-21/usr/sbin/munin22:38:570
8971997448,0cyclictest0-21swapper19:44:480
8971997448,0cyclictest0-21swapper19:19:380
8971997447,0cyclictest0-21swapper22:56:060
8971997447,0cyclictest0-21swapper20:15:130
8971997446,0cyclictest0-21swapper21:38:470
8971997357,0cyclictest23214-21sendmail-msp22:58:580
8971997352,0cyclictest20040-21cpu22:48:340
8971997351,0cyclictest26172-21seq19:54:480
8971997350,0cyclictest26647-21sendmail-msp20:00:150
8971997349,0cyclictest16621-21wget19:28:350
8971997348,0cyclictest12133-21ntpq19:14:430
8971997346,0cyclictest0-21swapper23:38:020
8971997252,0cyclictest30574-21tune2fs23:18:520
8971997252,0cyclictest10620-21timerandwakeup23:54:210
8971997251,0cyclictest4734-21cstates23:38:380
8971997250,0cyclictest3673-21sendmail_mailst20:24:150
8971997154,0cyclictest13348-21df00:03:420
8971997153,0cyclictest0-21swapper23:26:400
8971997152,0cyclictest23432-21cpu00:33:340
8971997149,0cyclictest24472-21runrttasks19:49:510
8971997135,0cyclictest6811-21seq20:34:000
8971997049,0cyclictest23128-21runrttasks00:33:030
8971997039,0cyclictest8105-21cstates23:48:350
8971996952,0cyclictest5961-1kworker/u3:122:09:330
8971996950,0cyclictest25036-21seq21:28:300
8971996949,0cyclictest10274-21meminfo22:19:070
8971996941,0cyclictest0-21swapper21:25:300
8971996850,0cyclictest12027-21seq20:49:060
8971996848,0cyclictest5227-21/usr/sbin/munin20:29:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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