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2026-05-18 - 20:28
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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 Mon May 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501970,0irq/46-4a10000013991-21runrttasks07:01:520
143249911781,0cyclictest27611-21meminfo12:24:540
143249911176,0cyclictest15042-21/usr/sbin/munin08:40:180
143249910882,0cyclictest18978-21irqstats08:49:520
143249910775,0cyclictest15325-21df_abs11:49:340
143249910684,0cyclictest8520-21diskstats09:54:380
143249910680,0cyclictest29171-21/usr/sbin/munin09:19:440
143249910671,0cyclictest20679-21interrupts07:19:490
143249910585,0cyclictest8808-21meminfo08:19:550
143249910585,0cyclictest29030-21diskstats10:54:380
143249910583,0cyclictest29031-21diskstats12:29:380
143249910574,0cyclictest32165-21aten_r4power_en09:29:240
143249910574,0cyclictest27456-21/usr/sbin/munin07:39:440
143249910484,0cyclictest3592-21irqstats08:04:510
143249910483,0cyclictest10528-21meminfo11:34:540
143249910481,0cyclictest724-21users11:05:120
143249910481,0cyclictest3409-21diskstats11:14:370
143249910481,0cyclictest29765-21users07:45:150
143249910480,0cyclictest26384-21users12:20:140
143249910477,0cyclictest24024-21fw_conntrack07:29:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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