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2026-07-23 - 07:49
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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 Thu Jul 23, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502780,0irq/46-4a10000012-21ksoftirqd/019:08:230
168019912942,0cyclictest29909-21/usr/sbin/munin22:59:360
168019912743,0cyclictest24876-21/usr/sbin/munin00:24:170
168019912640,0cyclictest0-21swapper21:30:560
168019912635,0cyclictest10373-21/usr/sbin/munin23:38:440
168019912237,0cyclictest15899-21/usr/sbin/munin20:38:470
168019912235,0cyclictest10037-21seq21:54:450
168019912232,0cyclictest22303-21chrt20:57:140
168019912134,0cyclictest28569-21seq19:39:360
168019912133,0cyclictest19850-21chrt19:14:350
168019912132,0cyclictest21428-21ntpq00:14:190
168019912131,0cyclictest5017-21chrt23:22:570
168019912128,0cyclictest2357-21seq19:58:520
168019912113,0cyclictest22793-21fw_forwarded_lo22:39:120
168019912042,0cyclictest17403-21df23:58:500
168019912036,0cyclictest5889-21fschecks_count20:08:590
168019912035,0cyclictest22534-21runrttasks00:18:430
168019912032,0cyclictest21746-21chrt22:34:560
168019912014,0cyclictest29878-21perl19:44:020
168019911949,0cyclictest0-21swapper23:24:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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