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2026-07-21 - 10:25
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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 21, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502340,0irq/46-4a10000025432-1kworker/u3:019:08:150
271959913136,0cyclictest10313-21seq19:50:500
271959912733,0cyclictest21363-21seq20:24:010
271959912629,0cyclictest27563-21runrttasks23:52:260
271959912536,0cyclictest31931-21/usr/sbin/munin00:04:210
271959912442,0cyclictest0-21swapper00:19:100
271959912440,0cyclictest0-21swapper21:59:040
271959912433,0cyclictest8725-21runrttasks22:56:560
271959912431,0cyclictest4504-21/usr/sbin/munin22:44:160
271959912431,0cyclictest20850-21runrttasks21:58:190
271959912340,0cyclictest0-21swapper21:47:110
271959912248,0cyclictest7350irq/45-4a10000022:19:150
271959912241,0cyclictest0-21swapper22:04:420
271959912236,0cyclictest0-21swapper21:37:070
271959912235,0cyclictest2500-21df_abs00:13:580
271959912141,0cyclictest29092-21runrttasks23:55:580
271959912133,0cyclictest3810-21seq22:43:340
271959912132,0cyclictest5331-21seq21:12:040
271959912128,0cyclictest32682-21runrttasks19:21:550
271959912049,0cyclictest7350irq/45-4a10000019:59:250
271959912041,0cyclictest7350irq/45-4a10000020:18:590
271959912041,0cyclictest17960-21/usr/sbin/munin20:14:050
271959912040,0cyclictest17376-21runrttasks20:12:470
271959912035,0cyclictest22764-21aten_r4power_cu20:28:460
271959912035,0cyclictest14105-21sendmail-msp21:39:250
271959912029,0cyclictest30856-21runrttasks20:51:130
271959911942,0cyclictest0-21swapper21:14:290
271959911937,0cyclictest26214-21aten_r4power_po22:13:490
271959911836,0cyclictest9159-21cut22:58:520
271959911832,0cyclictest5581-21sendmail-msp19:39:490
271959911832,0cyclictest0-21swapper23:12:460
271959911830,0cyclictest29868-21df_abs19:14:150
271959911830,0cyclictest2492-21grep19:28:560
271959911828,0cyclictest9625-21/usr/sbin/munin21:24:140
271959911737,0cyclictest0-21swapper23:35:400
271959911735,0cyclictest11933-21runrttasks19:55:040
271959911732,0cyclictest30318-21open_inodes22:24:270
271959911732,0cyclictest14783-21load23:14:190
271959911723,0cyclictest17845-21df21:48:570
271959911636,0cyclictest6191-21/usr/sbin/munin00:24:140
271959911635,0cyclictest11985-21runrttasks21:30:350
271959911628,0cyclictest24936-21if_err_eth023:44:130
271959911627,0cyclictest8282-21mailstats21:19:430
271959911544,0cyclictest0-21swapper22:52:370
271959911533,0cyclictest439-21sendmail-msp20:58:420
271959911530,0cyclictest26067-21sendmail-msp20:39:060
271959911528,0cyclictest7983-21latency19:44:180
271959911528,0cyclictest30484-21sensors23:59:420
271959911439,0cyclictest7350irq/45-4a10000000:38:390
271959911438,0cyclictest7350irq/45-4a10000023:23:590
271959911429,0cyclictest24135-21runrttasks23:42:160
271959911428,0cyclictest16429-21if_eth023:19:200
271959911426,0cyclictest31291-21/usr/sbin/munin22:29:220
271959911423,0cyclictest24500-21aten_r4power_en20:33:500
271959911344,0cyclictest19979-21/usr/sbin/munin23:29:240
271959911340,0cyclictest12-21ksoftirqd/022:09:150
271959911332,0cyclictest0-21swapper00:28:530
271959911329,0cyclictest2010-21sshd22:37:510
271959911325,0cyclictest2580-21entropy21:04:030
271959911312,0cyclictest4922-21threads19:34:380
271959911242,0cyclictest12-21ksoftirqd/019:13:430
271959911238,0cyclictest0-21swapper23:07:440
271959911131,0cyclictest14772-21kernelversion20:04:170
27195999630,0cyclictest0-21swapper20:59:520
27195998244,0cyclictest0-21swapper00:08:470
27195997749,0cyclictest0-21swapper19:26:180
27195996230,0cyclictest13-21rcu_preempt20:44:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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