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2025-11-20 - 23:19
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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 rack7slot3.osadl.org (updated Thu Nov 20, 2025 12:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9085245422sleep9084-21df07:01:450
1013499247217cyclictest16738-21ssh09:56:050
1013499237171cyclictest20288-21cpu10:11:470
1013499234210cyclictest21376-21munin-run10:16:390
1013499232174cyclictest10284-21grep09:27:350
1013499232170cyclictest32261-21ntpq11:03:280
1013499231204cyclictest12077-21sort07:13:320
1013499231164cyclictest9944-21latency_hist09:27:200
1013499230202cyclictest4295-21irqstats11:22:580
1013499229202cyclictest25379-21memory10:33:260
1013499228161cyclictest21701-21fschecks_count10:17:340
1013499227203cyclictest16350-21missed_timers07:32:390
1013499227199cyclictest19432-21ls07:46:490
1013499227162cyclictest14990-21ntp_states12:09:050
1604222616sleep1607-21modprobe11:12:110
1013499226201cyclictest2938-21runrttasks07:19:070
1013499225199cyclictest7195-21ssh11:35:450
1013499225199cyclictest14024-21ssh09:43:260
1013499224199cyclictest1386-21sendmail_mailst08:48:290
1013499224161cyclictest24978-21df_inode10:32:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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