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2025-12-28 - 09:31
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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 Sun Dec 28, 2025 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24541270719sleep24538-21ntpq19:05:140
2524899256193cyclictest2977-21idleruntime22:10:560
2524899248223cyclictest2766-21munin-node0
2524899244220cyclictest22476-21df21:20:080
2524899244165cyclictest26069-21latency_hist21:35:110
2524899243217cyclictest29888-21df21:50:010
2524899243191cyclictest390-21df_inode00:10:240
2524899242217cyclictest27131-21timerandwakeup19:16:130
2524899242217cyclictest11027-21grep20:29:470
2524899242177cyclictest14962-21ssh22:57:520
2524899241211cyclictest4221-21ssh22:15:480
2524899240209cyclictest15552-21egrep20:49:480
2524899240175cyclictest11400-21latency_hist22:45:090
2524899239216cyclictest53-21mmcqd/000:34:400
2524899239208cyclictest19446-21perl23:15:530
2524899238211cyclictest32422-21cpu21:59:550
2524899238210cyclictest2998-21latency_hist00:20:280
2524899238172cyclictest1205-21cpu22:04:520
2524899237213cyclictest23915-21munin-run23:34:590
2524899237211cyclictest5514-21df_inode20:05:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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