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2022-07-01 - 00:26

x86 AMD G-T48L @1400 MHz, Linux 4.4.4-rt11 (Profile)

Latency plot of system in rack #c, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 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 10 highest latencies:
System rackcslot3.osadl.org (updated Thu Jun 30, 2022 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950790irq/17-ehci_hcd0-21swapper/112:14:021
89950790irq/17-ehci_hcd0-21swapper/112:14:021
81780rcu_preempt0-21swapper/010:29:270
81780rcu_preempt0-21swapper/009:41:390
148650770irq/30-eth0-tx-41ktimersoftd/011:08:090
81740rcu_preempt23783-21ssh11:16:560
81740rcu_preempt20158-21diskmemload12:14:400
81730rcu_preempt687-21apt-get12:34:290
81730rcu_preempt20158-21diskmemload10:11:250
81730rcu_preempt13260-21ssh10:58:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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