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2026-06-20 - 08:06
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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 Sat Jun 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501930,0irq/46-4a10000017691-21runrttasks19:08:140
17937999675,0cyclictest20368-21ntp_kernel_pll_19:15:210
17937999577,0cyclictest2159-21modprobe19:59:530
17937999559,0cyclictest22076-21unixbench_singl20:55:500
17937999271,0cyclictest26048-21runrttasks22:44:520
17937999268,0cyclictest24960-21sort21:05:260
17937999171,0cyclictest4407-21fschecks_time20:05:230
17937999170,0cyclictest12188-21runrttasks22:03:190
17937999075,0cyclictest24798-21/usr/sbin/munin19:30:150
17937999075,0cyclictest22053-21/usr/sbin/munin22:30:530
17937999071,0cyclictest13445-21switchtime22:05:470
17937999069,0cyclictest7202-21runrttasks23:24:350
17937999069,0cyclictest31920-21runrttasks19:50:330
17937999069,0cyclictest17657-21aten_r4power_en23:55:040
17937999068,0cyclictest438-21snmpd20:48:170
17937999067,0cyclictest30816-21runrttasks19:46:490
17937998971,0cyclictest5738-21aten_r4power_en21:45:030
17937998971,0cyclictest16026-21aten_r4power_po20:40:050
17937998970,0cyclictest9025-21latency_hist23:29:550
17937998967,0cyclictest8864-21runrttasks21:54:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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