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2026-04-15 - 22:37
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Wed Apr 15, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502430,0irq/46-4a10000013538-1kworker/u3:207:02:520
7450960,0irq/46-4a10000026148-21awk09:11:240
7450960,0irq/46-4a10000016959-21/usr/sbin/munin08:45:440
7450950,0irq/46-4a10000027672-21memory07:41:160
7450940,0irq/46-4a10000025956-21meminfo07:36:110
7450940,0irq/46-4a10000025658-21diskstats10:45:540
7450940,0irq/46-4a10000024924-21chrt10:43:070
7450940,0irq/46-4a10000020493-21df_abs10:30:510
7450940,0irq/46-4a10000017282-21fw_packets11:56:050
7450940,0irq/46-4a10000016369-21sensors_temp07:06:260
7350940,0irq/45-4a10000014512-1kworker/u3:208:38:140
79262930,0sleep07907-1kworker/u3:211:28:550
7450930,0irq/46-4a10000017127-21runrttasks10:20:550
7350930,0irq/45-4a1000004428-1kworker/u3:211:19:120
7350930,0irq/45-4a10000029939-1kworker/u3:211:01:440
15372999361,0cyclictest0-21swapper07:20:410
7450920,0irq/46-4a10000030773-21diskstats07:50:550
7450920,0irq/46-4a10000025791-21fschecks_time12:21:010
7450920,0irq/46-4a10000022812-21/usr/sbin/munin12:11:270
7450920,0irq/46-4a10000020483-21/usr/sbin/munin12:05:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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