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2026-07-24 - 02:59
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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 Fri Jul 24, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012940,0irq/46-4a10000018636-1kworker/u3:019:07:210
18283210029,0sleep018285-21irqstats23:44:070
274962940,0sleep025792-1kworker/u3:221:00:180
81602930,0sleep03949-1kworker/u3:221:39:240
137882910,0sleep012557-1kworker/u3:220:19:540
7350900,0irq/45-4a10000025060-21/usr/sbin/munin19:19:040
230102900,0chrt22787-1kworker/u3:223:58:440
218602909,0sleep021875-21modprobe22:19:270
7450890,0irq/46-4a10000025206-21memory22:29:130
7350890,0irq/45-4a1000003830-21sshd00:37:350
7350880,0irq/45-4a10000028026-21/usr/sbin/munin22:39:030
81592870,0chrt6690-1kworker/u3:123:14:160
7450870,0irq/46-4a1000009114-21sendmail-msp23:18:570
7450870,0irq/46-4a100000591-21sendmail-msp21:19:110
7350870,0irq/45-4a10000027143-21ps19:24:240
7350870,0irq/45-4a10000014669-21df_inode20:23:500
7450860,0irq/46-4a1000009602-21fschecks_count20:08:560
7450860,0irq/46-4a1000006499-21ntpq21:34:180
7450860,0irq/46-4a10000031886-21runrttasks00:24:000
7350860,0irq/45-4a1000006449-21memory19:59:230
20501998653,0cyclictest0-21swapper00:08:570
7450850,0irq/46-4a1000004736-21ls23:04:160
7450850,0irq/46-4a10000032236-21grep22:49:230
7450850,0irq/46-4a10000029619-21sendmail-msp00:19:270
7450850,0irq/46-4a10000027525-1kworker/u3:021:32:080
7450850,0irq/46-4a10000025057-21chrt00:04:030
7450850,0irq/46-4a10000016977-21runrttasks22:04:310
7350850,0irq/45-4a10000028122-21aten_r4power_vo00:13:460
7350850,0irq/45-4a1000002608-21chrt22:58:500
7450840,0irq/46-4a1000007589-21aten_r4power_en20:03:420
7450840,0irq/46-4a10000029614-21sh19:33:310
7450840,0irq/46-4a1000002469-21seq21:23:420
7450840,0irq/46-4a10000021196-21seq23:53:410
7450840,0irq/46-4a10000020321-21zcat20:39:340
7450840,0irq/46-4a10000012703-21aten_r4power_po21:53:430
7450840,0irq/46-4a10000011542-21meminfo21:49:150
7450840,0irq/46-4a10000010899-21latency_hist20:13:350
279172848,0sleep027891-21munin-run22:38:340
7450830,0irq/46-4a1000009282-21aten_r4power_en21:43:420
7450830,0irq/46-4a100000861-21runrttasks22:53:460
7450830,0irq/46-4a1000007356-21kworker/u2:123:38:500
7450830,0irq/46-4a1000006103-21sshd23:08:540
7450830,0irq/46-4a100000438-21snmpd21:11:040
7450830,0irq/46-4a1000004371-21sed19:53:500
7450830,0irq/46-4a10000032120-21awk19:39:240
7450830,0irq/46-4a10000031346-21sendmail-msp19:38:360
7450830,0irq/46-4a1000002937-21interrupts19:49:130
7450830,0irq/46-4a10000028348-21diskstats21:03:560
7450830,0irq/46-4a10000022760-21sshd19:13:550
7450830,0irq/46-4a10000019581-21wget22:13:450
7450830,0irq/46-4a10000018178-21perl22:08:580
7450830,0irq/46-4a10000016425-21grep20:28:560
7450830,0irq/46-4a10000015514-21chrt22:00:100
7450830,0irq/46-4a10000014544-21df23:33:480
7450830,0irq/46-4a1000001406-21ntp_states19:44:200
7450830,0irq/46-4a1000001338-21ntp_kernel_pll_00:29:160
7450830,0irq/46-4a10000013281-21/usr/sbin/munin23:29:160
7450830,0irq/46-4a10000011610-21seq23:24:170
249142836,0sleep0338-21sshd20:53:540
7450820,0irq/46-4a10000029938-21df22:43:480
7450820,0irq/46-4a10000022891-21seq20:48:350
7450820,0irq/46-4a10000021491-1kworker/u3:022:23:520
7450820,0irq/46-4a10000021398-21cstates20:43:480
7450820,0irq/46-4a10000018671-21/usr/sbin/munin20:34:260
7350820,0irq/45-4a10000020139-21modprobe23:49:200
7450810,0irq/46-4a10000020708-21aten_r4power_vo19:08:430
7450800,0irq/46-4a10000032446-21cat21:14:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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