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2022-01-16 - 11:50

VIA Samuel 2, Linux 3.18.9-rt4 (Profile)

Latency plot of system in rack #3, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p98 -i200 -h1000 -q
Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack3slot7.osadl.org (updated Sun Jan 16, 2022 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140160ksoftirqd/020396-21kworker/0:118:52:540
14991430watchdog/027512-21runrttasks23:28:090
14991370watchdog/03353-21runrttasks21:48:050
14991350watchdog/012361-21timerandwakeup20:43:130
14991280watchdog/03280-21runrttasks23:56:330
14991250watchdog/024875-21df19:37:570
14991200watchdog/04539-21df_inode20:18:010
14991190watchdog/025697-21df23:22:570
14991180watchdog/09110-21rt-features20:33:090
14991150watchdog/022208-21seq23:11:010
14991150watchdog/014696-21munin-node20:52:490
14991120watchdog/031149-21nfs_client19:58:050
14991100watchdog/012549-21seq18:57:410
14991090watchdog/029998-21munin-node23:38:050
14991080watchdog/028833-21df_inode23:33:010
14991040watchdog/03353-21runrttasks22:47:530
14991040watchdog/03353-21runrttasks19:49:170
14991040watchdog/017541-21df_inode19:13:010
14991040watchdog/016312-21needreboot19:08:090
14991030watchdog/04072-21nfs_client23:58:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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