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2021-07-26 - 18:13

0, Linux 4.18.5-rt3 (Profile)

Latency plot of system in rack #a, 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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackaslot3 (updated Mon Jul 26, 2021 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
603099274,0cyclictest29469-21kill10:51:352
92350220,0irq/30-eth0-TxR0-21swapper/111:55:201
541220,0rcuc/529980-21scp10:53:575
541220,0rcuc/514495-21scp11:21:315
92550210,0irq/32-eth0-TxR0-21swapper/312:00:313
92550210,0irq/32-eth0-TxR0-21swapper/312:00:313
92250210,0irq/29-eth0-TxR0-21swapper/011:24:590
603099211,0cyclictest0-21swapper/211:02:132
301210,0rcuc/20-21swapper/211:26:092
92550200,0irq/32-eth0-TxR0-21swapper/312:20:203
92550200,0irq/32-eth0-TxR0-21swapper/312:10:013
92350200,0irq/30-eth0-TxR0-21swapper/111:38:021
92350200,0irq/30-eth0-TxR0-21swapper/111:20:221
603099205,0cyclictest916-21runrttasks11:17:282
603099205,0cyclictest916-21runrttasks11:17:282
603099203,0cyclictest19580-21needreboot07:55:262
92550190,0irq/32-eth0-TxR0-21swapper/312:30:203
92350190,0irq/30-eth0-TxR28642-21needreboot10:50:281
92350190,0irq/30-eth0-TxR0-21swapper/112:40:021
92350190,0irq/30-eth0-TxR0-21swapper/112:25:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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