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2026-01-12 - 10:42
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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 Mon Jan 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73505000,0irq/45-4a10000016947-21kworker/0:319:04:160
7450950,0irq/46-4a10000030322-21sed21:11:130
7450950,0irq/46-4a10000025810-21https00:09:060
7350950,0irq/45-4a1000008568-21chrt20:09:210
7450940,0irq/46-4a100000460-21snmpd23:15:220
7450940,0irq/46-4a10000023224-21runrttasks00:00:010
7450940,0irq/46-4a1000001954-21runrttasks21:24:260
7450930,0irq/46-4a10000026228-21runrttasks19:24:520
7450930,0irq/46-4a10000019422-21idleruntime22:14:470
7450920,0irq/46-4a1000008615-21date21:44:120
7450920,0irq/46-4a100000569-21chrt22:54:350
7450920,0irq/46-4a1000004964-1kworker/u3:019:16:100
7450920,0irq/46-4a1000004338-21ntpq21:30:510
7450920,0irq/46-4a10000032652-21sh00:29:060
7450920,0irq/46-4a10000032504-21basename19:44:230
7450920,0irq/46-4a10000031914-21timerandwakeup22:50:080
7450920,0irq/46-4a10000029840-21/usr/sbin/munin00:19:450
7450920,0irq/46-4a10000018871-21seq20:39:210
7450920,0irq/46-4a10000017537-21df_inode22:09:330
7450920,0irq/46-4a10000016447-21switchtime22:05:080
7450920,0irq/46-4a10000013264-1kworker/u3:222:00:480
7450920,0irq/46-4a10000010484-21runrttasks20:14:260
7450910,0irq/46-4a10000032357-21https19:44:090
7450910,0irq/46-4a10000031382-21irqstats21:14:500
7450910,0irq/46-4a10000027932-21chrt19:29:530
7450910,0irq/46-4a10000025721-21/usr/sbin/munin21:00:020
7450910,0irq/46-4a10000024034-21egrep19:19:260
7450910,0irq/46-4a10000022967-21latency22:24:530
7450910,0irq/46-4a10000022446-21latency_hist23:59:090
7450910,0irq/46-4a10000021705-1kworker/u3:020:50:140
7450910,0irq/46-4a10000021435-21latency_hist19:14:120
7450910,0irq/46-4a10000021239-21chrt22:19:500
7450910,0irq/46-4a10000021069-1kworker/u3:119:37:020
7450910,0irq/46-4a10000018671-21chrt23:47:070
7450910,0irq/46-4a10000016645-21grep23:40:080
7450910,0irq/46-4a10000012676-21tune2fs23:30:010
7450910,0irq/46-4a10000011309-21ls21:50:050
7450910,0irq/46-4a10000010591-21/usr/sbin/munin23:24:240
88932900,0sleep08555-1kworker/u3:221:44:290
7450900,0irq/46-4a1000009408-21meminfo23:19:530
7450900,0irq/46-4a1000006430-21users23:10:110
7450900,0irq/46-4a1000005320-21/usr/sbin/munin19:59:260
7450900,0irq/46-4a100000460-21snmpd23:05:160
7450900,0irq/46-4a10000032580-21/usr/sbin/munin21:19:460
7450900,0irq/46-4a1000003095-21chrt23:00:450
7450900,0irq/46-4a10000029260-21runrttasks22:44:180
7450900,0irq/46-4a10000028887-21seq22:42:200
7450900,0irq/46-4a10000028277-21/usr/sbin/munin21:05:040
7450900,0irq/46-4a10000026013-21/usr/sbin/munin22:34:280
7450900,0irq/46-4a10000025937-21dpkg00:09:180
7450900,0irq/46-4a1000002045-21chrt00:34:190
7450900,0irq/46-4a10000019801-21open_inodes23:50:010
7450900,0irq/46-4a10000017352-21df20:34:280
7450900,0irq/46-4a10000015382-21date20:29:100
7450900,0irq/46-4a10000014662-21/usr/sbin/munin23:35:040
7450900,0irq/46-4a10000014338-21memory20:24:550
7450900,0irq/46-4a10000012308-21df_inode20:19:300
7450900,0irq/46-4a1000001219-1kworker/u3:319:58:470
7450890,0irq/46-4a1000007888-21awk20:05:100
7450890,0irq/46-4a10000030341-1kworker/u3:421:35:210
7450890,0irq/46-4a10000028116-21idleruntime00:14:460
7450890,0irq/46-4a10000025358-21chrt22:31:350
7450890,0irq/46-4a10000024223-21df20:54:300
7450890,0irq/46-4a1000002396-21grep19:50:010
7450890,0irq/46-4a10000022137-21chrt20:49:050
7450880,0irq/46-4a100000629-21df_inode00:29:310
7450880,0irq/46-4a10000012394-21diskstats21:54:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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