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2026-03-17 - 08:17
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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 Tue Mar 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502310,0irq/46-4a10000023232-1kworker/u3:219:06:100
8682920,0sleep030559-1kworker/u3:121:07:220
128532900,0sleep010089-1kworker/u3:220:07:230
7350890,0irq/45-4a10000029186-21idleruntime-cro19:21:380
169362890,0sleep015512-1kworker/u3:223:29:310
7450870,0irq/46-4a1000007963-21sensors_temp21:27:310
7350870,0irq/45-4a10000012222-21/usr/sbin/munin21:42:280
7450860,0irq/46-4a1000006136-21proc_pri21:22:330
7450860,0irq/46-4a10000016267-21/usr/sbin/munin21:52:220
7450850,0irq/46-4a10000032652-21latency_hist21:06:410
7450850,0irq/46-4a10000031500-21if_err_eth000:12:140
7450850,0irq/46-4a10000023743-21grep19:06:520
7350850,0irq/45-4a1000007097-21/usr/sbin/munin23:02:320
307752850,0chrt30559-1kworker/u3:121:00:510
117152850,0chrt10089-1kworker/u3:220:03:430
108602850,0sleep023631-1kworker/u3:123:12:050
7450840,0irq/46-4a1000008041-21timerandwakeup19:52:350
7450840,0irq/46-4a1000006461-21users00:32:380
7450840,0irq/46-4a1000006454-21/usr/sbin/munin22:57:370
7450840,0irq/46-4a10000027021-1kworker/u3:222:31:210
7450840,0irq/46-4a1000002685-21ntpq00:22:260
7450840,0irq/46-4a10000024531-21fschecks_count23:52:030
7450840,0irq/46-4a10000024065-21ls20:41:380
7450840,0irq/46-4a10000024059-21munin-run23:51:380
7450840,0irq/46-4a1000002284-21runrttasks19:37:020
7450840,0irq/46-4a10000016311-21ntpdc20:17:250
7450840,0irq/46-4a10000014248-21chrt23:22:020
7350840,0irq/45-4a100000484-21runrttasks00:06:470
298202840,0chrt28791-1kworker/u3:219:22:120
7450830,0irq/46-4a1000009491-21ntp_offset19:57:250
7450830,0irq/46-4a1000009240-21runrttasks23:07:080
7450830,0irq/46-4a1000008863-21aten_r4power_po21:31:500
7450830,0irq/46-4a100000858-21memory19:32:220
7450830,0irq/46-4a100000460-21snmpd19:48:360
7450830,0irq/46-4a1000004143-21sshd00:27:100
7450830,0irq/46-4a1000004017-21cut19:42:030
7450830,0irq/46-4a10000031623-21cut22:37:190
7450830,0irq/46-4a10000028186-21meminfo20:52:180
7450830,0irq/46-4a10000024079-21sendmail-msp22:16:400
7450830,0irq/46-4a1000002337-21tune2fs22:47:050
7450830,0irq/46-4a10000020022-21timerwakeupswit22:02:330
7450830,0irq/46-4a10000019052-21aten_r4power_cu20:26:470
7450830,0irq/46-4a10000015435-1kworker/u3:022:17:080
7450830,0irq/46-4a1000001146-21sendmail_mailtr00:17:340
7350830,0irq/45-4a1000003671-21/usr/sbin/munin22:52:270
210852830,0chrt20439-1kworker/u3:223:42:050
7450820,0irq/46-4a1000003995-21diskstats21:17:040
7450820,0irq/46-4a10000031608-21meminfo19:27:210
7450820,0irq/46-4a1000003056-21users21:12:570
7450820,0irq/46-4a10000029775-21idleruntime22:32:120
7450820,0irq/46-4a10000028505-21/usr/sbin/munin00:02:300
7450820,0irq/46-4a10000027036-21runrttasks23:58:020
7450820,0irq/46-4a10000026139-21sed19:12:150
7450820,0irq/46-4a10000026067-21cstates20:46:530
7450820,0irq/46-4a10000024149-21sed20:41:420
7450820,0irq/46-4a10000020954-21df20:31:540
7450820,0irq/46-4a10000019872-21zcat23:37:310
7450820,0irq/46-4a1000001847-21munin-run22:46:380
7450820,0irq/46-4a10000018216-21/usr/sbin/munin21:57:400
7450820,0irq/46-4a10000017791-21runrttasks23:32:100
7450820,0irq/46-4a10000017651-21/usr/sbin/munin20:21:590
7450820,0irq/46-4a10000014443-21irqstats20:12:170
7450820,0irq/46-4a10000014091-21cat21:46:520
7450820,0irq/46-4a10000010516-21/usr/sbin/munin21:37:300
7350820,0irq/45-4a10000026282-21fschecks_time22:22:040
7450810,0irq/46-4a10000022325-21sh22:11:380
7450810,0irq/46-4a10000012686-21fw_forwarded_lo23:17:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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