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2026-01-10 - 23:06
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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 highest latencies:
System rack4slot2.osadl.org (updated Sat Jan 10, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502770,0irq/46-4a10000019941-1kworker/u3:007:07:130
74501010,0irq/46-4a1000001896-21kworker/u2:909:21:220
20319999369,0cyclictest0-21swapper09:35:030
20319999357,0cyclictest0-21swapper11:54:340
7350920,0irq/45-4a100000438-21apt-get07:45:530
20319999259,0cyclictest0-21swapper07:35:060
20319999159,0cyclictest0-21swapper07:19:540
20319999158,0cyclictest0-21swapper09:04:480
20319999151,0cyclictest0-21swapper09:00:070
7350900,0irq/45-4a10000010565-1kworker/u3:009:49:550
20319999058,0cyclictest0-21swapper10:54:410
20319999058,0cyclictest0-21swapper09:39:410
20319999057,0cyclictest0-21swapper11:59:460
20319999057,0cyclictest0-21swapper10:25:000
20319998957,0cyclictest0-21swapper12:15:130
20319998957,0cyclictest0-21swapper10:14:430
20319998956,0cyclictest0-21swapper07:40:000
20319998856,0cyclictest0-21swapper08:29:430
20319998855,0cyclictest0-21swapper08:39:470
7350870,0irq/45-4a1000008339-21ntp_states11:15:030
7350870,0irq/45-4a10000031197-1kworker/u3:009:30:590
7350870,0irq/45-4a10000024029-1kworker/u3:007:26:300
20319998760,0cyclictest0-21swapper09:24:180
20319998756,0cyclictest0-21swapper12:24:260
20319998756,0cyclictest0-21swapper11:04:240
20319998754,0cyclictest0-21swapper08:00:010
7450860,0irq/46-4a10000030033-21df10:44:300
7350860,0irq/45-4a10000026874-21fschecks_count12:09:400
20319998654,0cyclictest0-21swapper08:09:250
20319998654,0cyclictest0-21swapper07:15:010
20319998650,0cyclictest0-21swapper10:19:450
7450850,0irq/46-4a1000009739-21/usr/sbin/munin11:20:000
7350850,0irq/45-4a10000029746-21latency_hist10:44:130
7350850,0irq/45-4a10000017365-21unixbench_singl11:41:110
20319998562,0cyclictest0-21swapper11:00:140
20319998557,0cyclictest0-21swapper08:50:030
20319998553,0cyclictest0-21swapper08:54:380
20319998551,0cyclictest0-21swapper10:09:390
7350840,0irq/45-4a10000025770-1kworker/u3:107:29:200
7350840,0irq/45-4a10000019617-21/usr/sbin/munin11:49:180
20319998453,0cyclictest0-21swapper11:34:360
7450830,0irq/46-4a100000460-21snmpd08:20:400
7450830,0irq/46-4a10000030435-21open_files09:10:030
7450830,0irq/46-4a1000001236-21fschecks_count12:29:420
7350830,0irq/45-4a10000021131-21ntp_offset07:10:040
7350830,0irq/45-4a10000020311-21cyclictest12:06:010
20319998361,0cyclictest0-21swapper11:09:440
7450820,0irq/46-4a100000460-21snmpd10:06:350
7450820,0irq/46-4a10000031732-21df_inode09:14:370
7450820,0irq/46-4a1000002886-21meminfo07:49:560
7450820,0irq/46-4a10000017707-21runrttasks08:34:230
7350820,0irq/45-4a10000011818-21proc_pri11:25:040
20319998261,0cyclictest0-21swapper10:30:150
20319998261,0cyclictest0-21swapper08:24:590
20319998252,0cyclictest0-21swapper10:50:120
20319998250,0cyclictest0-21swapper10:34:460
7450810,0irq/46-4a1000007435-21runrttasks08:04:230
7450810,0irq/46-4a1000005408-21runrttasks07:58:020
7450810,0irq/46-4a10000015001-21seq09:59:590
7450810,0irq/46-4a10000011157-21diskstats08:14:380
7350810,0irq/45-4a10000012-21ksoftirqd/011:46:100
7350810,0irq/45-4a10000010039-21processes09:45:050
20319998149,0cyclictest0-21swapper08:44:450
7450800,0irq/46-4a1000003319-21ntp_states12:35:050
7450800,0irq/46-4a10000029978-21aten_r4power_en12:19:240
7450800,0irq/46-4a10000013586-21awk11:30:060
7450790,0irq/46-4a10000014001-21seq09:57:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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