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2026-07-05 - 02:22
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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 all highest latencies:
System rack4slot2.osadl.org (updated Sun Jul 05, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502510,0irq/46-4a1000007143-1kworker/u3:219:07:160
7350880,0irq/45-4a1000009595-21/usr/sbin/munin22:19:240
8930998656,0cyclictest0-21swapper19:28:180
7450850,0irq/46-4a10000026597-21sendmail-msp19:59:490
7350850,0irq/45-4a100000439-21awk20:15:180
7350850,0irq/45-4a10000016310-21sendmail-msp22:39:590
646028510,0sleep06463-21df_inode22:09:370
8930998455,0cyclictest0-21swapper23:01:350
8930998356,0cyclictest0-21swapper21:29:250
8930998352,0cyclictest0-21swapper19:18:200
7450830,0irq/46-4a100000438-21snmpd20:42:370
7450830,0irq/46-4a10000010630-21runrttasks19:14:170
7350830,0irq/45-4a1000006170-21/usr/sbin/munin23:44:260
7350830,0irq/45-4a1000003840-21users22:00:240
7350830,0irq/45-4a10000021668-21basename21:19:290
8930998257,0cyclictest0-21swapper20:34:240
8930998254,0cyclictest0-21swapper00:23:220
7450820,0irq/46-4a10000025901-21chrt23:05:140
7450820,0irq/46-4a10000022294-21chrt22:55:080
151952826,0sleep015197-21fw_forwarded_lo20:59:500
7450810,0irq/46-4a10000029971-21sendmail-msp23:20:020
7450810,0irq/46-4a10000025392-21tune2fs19:54:430
7450810,0irq/46-4a1000001677-21ls20:20:000
55292816,0sleep0324-21rs:main0
136622810,0chrt10064-1kworker/u3:100:05:040
7450800,0irq/46-4a100000438-21snmpd21:07:480
7450800,0irq/46-4a100000438-21snmpd20:47:390
7450800,0irq/46-4a10000031698-21awk20:14:160
7450800,0irq/46-4a10000026990-21diskstats21:34:400
7450800,0irq/46-4a10000021802-21df19:44:320
7450800,0irq/46-4a10000018004-21sendmail-msp00:19:190
7450800,0irq/46-4a10000015096-21grep22:34:420
7450800,0irq/46-4a10000014341-21runrttasks20:57:150
7450800,0irq/46-4a10000011713-21tune2fs23:59:510
7350800,0irq/45-4a1000003031-21df_abs20:24:340
7350800,0irq/45-4a10000020646-21find00:25:110
7350800,0irq/45-4a10000017279-21grep19:30:100
93862790,0chrt9265-1kworker/u3:022:18:520
7450790,0irq/46-4a1000005594-21chrt20:30:320
7450790,0irq/46-4a100000438-21snmpd22:48:290
7450790,0irq/46-4a100000438-21snmpd21:40:510
7450790,0irq/46-4a100000433-1kworker/u3:021:54:290
7450790,0irq/46-4a10000030796-21/usr/sbin/munin21:45:060
7450790,0irq/46-4a10000027641-21grep23:10:110
7450790,0irq/46-4a10000021288-1kworker/u3:100:29:520
7450790,0irq/46-4a10000020038-21ls21:14:320
7450790,0irq/46-4a10000019772-21sendmail-msp19:40:190
7450790,0irq/46-4a10000019755-21awk19:39:170
7450790,0irq/46-4a10000013512-21seq19:19:490
7450790,0irq/46-4a10000012268-21grep22:25:130
7450790,0irq/46-4a10000011156-21awk23:59:160
7450790,0irq/46-4a1000001066-21cut23:29:270
7350790,0irq/45-4a10000023440-21runrttasks21:24:290
8930997853,0cyclictest0-21swapper23:50:460
7450780,0irq/46-4a100000781-21seq21:53:200
7450780,0irq/46-4a10000031788-21/usr/sbin/munin23:25:100
7450780,0irq/46-4a10000029971-21sendmail-msp23:19:190
7450780,0irq/46-4a10000028772-21sort20:04:420
7450780,0irq/46-4a1000002556-1kworker/u3:023:35:060
7450780,0irq/46-4a10000022823-1kworker/u3:219:51:260
7450780,0irq/46-4a10000020152-21/usr/sbin/munin22:49:410
7450780,0irq/46-4a10000011829-21cat20:49:510
7350780,0irq/45-4a100000470-21runrttasks22:06:060
7450770,0irq/46-4a10000023630-21fschecks_time00:34:430
7450770,0irq/46-4a10000011121-1kworker/u3:222:29:560
7350770,0irq/45-4a10000012-21ksoftirqd/000:14:190
7450760,0irq/46-4a10000018148-21/usr/sbin/munin21:09:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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