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2026-07-01 - 00:34
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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 Jun 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73504970,0irq/45-4a10000026000-21kworker/0:407:08:370
318719913549,0cyclictest0-21swapper08:09:280
318719912544,0cyclictest0-21swapper12:30:260
318719910856,0cyclictest0-21swapper08:49:390
318719910252,0cyclictest0-21swapper09:10:120
318719910151,0cyclictest0-21swapper10:55:210
31871999360,0cyclictest0-21swapper08:34:400
31871999060,0cyclictest0-21swapper08:28:320
31871999057,0cyclictest0-21swapper07:45:050
31871999055,0cyclictest0-21swapper10:44:420
31871998968,0cyclictest0-21swapper08:54:480
31871998957,0cyclictest0-21swapper08:15:060
31871998956,0cyclictest0-21swapper11:04:530
31871998955,0cyclictest0-21swapper11:30:240
31871998866,0cyclictest0-21swapper08:30:060
31871998856,0cyclictest0-21swapper11:45:150
31871998757,0cyclictest0-21swapper07:29:590
31871998755,0cyclictest0-21swapper10:25:280
31871998754,0cyclictest0-21swapper07:54:580
31871998658,0cyclictest0-21swapper08:48:580
31871998655,0cyclictest0-21swapper11:25:240
31871998654,0cyclictest0-21swapper12:35:200
31871998653,0cyclictest0-21swapper12:04:280
31871998653,0cyclictest0-21swapper09:35:140
31871998556,0cyclictest0-21swapper09:44:450
31871998553,0cyclictest0-21swapper10:34:400
31871998551,0cyclictest0-21swapper10:50:100
7350840,0irq/45-4a10000031505-21ntp_kernel_pll_08:40:220
7350840,0irq/45-4a10000029798-21ntp_states10:10:160
7350840,0irq/45-4a10000012547-21if_eth009:20:070
31871998454,0cyclictest0-21swapper11:00:010
31871998451,0cyclictest0-21swapper10:30:060
7350830,0irq/45-4a10000028886-21sshd11:43:560
7350830,0irq/45-4a10000020878-21/usr/sbin/munin11:19:530
7350830,0irq/45-4a10000010994-21sed07:40:200
31871998352,0cyclictest0-21swapper10:40:350
31871998351,0cyclictest0-21swapper07:25:230
31871998350,0cyclictest0-21swapper09:49:430
7350820,0irq/45-4a1000007219-21df_inode09:04:500
7350820,0irq/45-4a10000019404-21irqstats09:40:110
31871998255,0cyclictest0-21swapper07:50:570
7350810,0irq/45-4a10000025999-21diskstats09:59:510
7350810,0irq/45-4a10000011912-21munin-run09:19:310
31871998147,0cyclictest0-21swapper07:15:470
31871998053,0cyclictest0-21swapper11:58:300
31871998048,0cyclictest0-21swapper12:14:510
31871998048,0cyclictest0-21swapper07:09:470
31871998047,0cyclictest0-21swapper11:35:070
7350790,0irq/45-4a1000004559-21grep07:20:560
7350790,0irq/45-4a10000032425-21sendmail-msp10:19:290
7350790,0irq/45-4a10000027699-21df_inode10:04:470
7350790,0irq/45-4a10000014808-21sshd09:25:250
7350790,0irq/45-4a10000010849-21kernelversion12:25:050
31871997948,0cyclictest0-21swapper08:10:110
7350780,0irq/45-4a1000005985-21proc_pri09:00:270
7350780,0irq/45-4a10000019295-21fw_forwarded_lo11:15:000
31871997856,0cyclictest0-21swapper11:10:100
7350770,0irq/45-4a1000009231-21missed_timers12:20:190
7350770,0irq/45-4a1000003483-21kworker/u2:107:39:300
31871997744,0cyclictest0-21swapper12:10:140
7450760,0irq/46-4a10000024307-21df_inode08:19:490
7350760,0irq/45-4a10000032425-21sendmail-msp10:20:180
7350760,0irq/45-4a10000031649-21kworker/0:107:59:470
7350760,0irq/45-4a10000031059-21df_abs11:49:450
7350760,0irq/45-4a10000024185-21df09:54:440
7350760,0irq/45-4a10000015289-1kworker/u3:209:33:580
34702760,0chrt3114-1kworker/u3:212:04:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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