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2026-07-05 - 13:47
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Sun Jul 05, 2026 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73504450,0irq/45-4a10000013221-21kworker/0:207:06:580
24591999572,0cyclictest0-21swapper07:54:320
24591999555,0cyclictest0-21swapper08:25:130
24591999472,0cyclictest0-21swapper08:55:120
24591999360,0cyclictest0-21swapper07:09:510
24591999159,0cyclictest0-21swapper11:45:150
24591999157,0cyclictest0-21swapper07:34:530
24591998957,0cyclictest0-21swapper10:35:120
24591998868,0cyclictest0-21swapper12:25:080
24591998858,0cyclictest0-21swapper09:05:230
24591998857,0cyclictest0-21swapper07:40:000
24591998856,0cyclictest0-21swapper09:49:530
24591998855,0cyclictest0-21swapper12:34:290
24591998855,0cyclictest0-21swapper07:50:110
24591998854,0cyclictest0-21swapper08:45:070
186742880,0sleep017124-1kworker/u3:010:01:450
24591998756,0cyclictest0-21swapper11:24:530
24591998756,0cyclictest0-21swapper10:05:280
24591998755,0cyclictest0-21swapper07:45:180
7450860,0irq/46-4a100000438-21snmpd09:18:530
7450860,0irq/46-4a10000019756-21ntpdc11:40:130
7450860,0irq/46-4a10000013695-21runrttasks08:12:390
24591998655,0cyclictest0-21swapper08:40:060
24591998654,0cyclictest0-21swapper09:40:180
7450850,0irq/46-4a100000967-21meminfo09:10:000
7450850,0irq/46-4a100000438-21snmpd11:20:100
7450850,0irq/46-4a10000031807-21chrt07:30:050
7450850,0irq/46-4a10000023436-21grep11:50:170
7450850,0irq/46-4a10000015119-1kworker/u3:011:29:480
7350850,0irq/45-4a10000017148-1kworker/u3:208:24:060
24591998557,0cyclictest0-21swapper10:52:290
24591998554,0cyclictest0-21swapper10:55:140
7450840,0irq/46-4a1000008944-21aten_r4power_cu07:59:250
7450840,0irq/46-4a100000622-1kworker/u3:110:45:190
7350840,0irq/45-4a1000009438-21memory11:10:030
7350840,0irq/45-4a1000007344-21df11:04:340
7350840,0irq/45-4a10000024632-21fw_forwarded_lo11:54:510
60982846,0sleep05486-21/usr/sbin/munin09:25:020
326072840,0chrt32598-21sendmail-msp12:19:190
274482840,0chrt27027-1kworker/u3:007:18:110
24591998456,0cyclictest0-21swapper12:10:240
7450830,0irq/46-4a100000555-21df_inode12:19:400
7450830,0irq/46-4a1000004486-21/usr/sbin/munin09:20:110
7450830,0irq/46-4a10000026513-21runrttasks12:00:130
7450830,0irq/46-4a10000019819-21nfs_client08:30:050
7450830,0irq/46-4a10000012923-21runrttasks09:45:010
7350830,0irq/45-4a1000006013-21ls11:00:050
7350830,0irq/45-4a10000031532-21fw_conntrack10:39:560
7350830,0irq/45-4a10000024588-21cyclictest10:12:210
7350830,0irq/45-4a10000022268-1kworker/u3:210:15:010
24591998363,0cyclictest0-21swapper08:49:270
24591998354,0cyclictest0-21swapper08:04:250
24591998349,0cyclictest0-21swapper09:35:060
7450820,0irq/46-4a10000029808-21fschecks_count07:24:430
7450820,0irq/46-4a10000028030-21grep10:29:480
7450820,0irq/46-4a10000027668-21wget12:04:270
7450820,0irq/46-4a10000024863-21meminfo10:20:070
7350820,0irq/45-4a10000010919-21uniq11:14:450
7450810,0irq/46-4a1000004101-21fw_conntrack12:29:500
7450810,0irq/46-4a10000030663-21runrttasks09:01:410
7450810,0irq/46-4a10000028097-21tune2fs07:19:450
7450810,0irq/46-4a1000001537-1kworker/u3:008:37:070
7350810,0irq/45-4a10000014515-21if_err_eth008:14:500
162282810,0sleep015374-1kworker/u3:209:54:550
7450800,0irq/46-4a1000007491-21diskstats09:29:400
7450800,0irq/46-4a10000026268-21diskstats10:24:450
7450800,0irq/46-4a10000017663-21diskstats11:34:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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