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2021-01-16 - 06:05

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 50 highest latencies:
System rackaslot3 (updated Sat Jan 16, 2021 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
682399241,0cyclictest0-21swapper/000:26:590
92450230,0irq/31-eth0-TxR0-21swapper/223:47:582
682399237,0cyclictest11559-21switchtime22:02:130
682399231,0cyclictest0-21swapper/022:47:130
682399230,0cyclictest0-21swapper/023:47:030
92550220,0irq/32-eth0-TxR0-21swapper/323:45:153
92550220,0irq/32-eth0-TxR0-21swapper/323:45:153
682399223,0cyclictest4368-21sed22:57:010
682399221,0cyclictest8500-21systemd-cgroups23:02:240
682399221,0cyclictest252572sleep023:35:410
682399221,0cyclictest1-21systemd23:20:530
682399221,0cyclictest0-21swapper/000:32:110
682399220,0cyclictest7349-21sshd00:01:560
682399220,0cyclictest0-21swapper/023:31:570
682399220,0cyclictest0-21swapper/022:55:500
92450210,0irq/31-eth0-TxR21946-21chrt23:28:462
682399215,0cyclictest22823-21date19:52:130
682399214,0cyclictest30483-21bash23:43:320
682399214,0cyclictest30483-21bash23:43:320
682399213,0cyclictest18566-21if_eth121:02:030
682399213,0cyclictest17277-21/usr/sbin/munin23:22:110
682399212,0cyclictest24048-21timerandwakeup22:32:120
682399211,0cyclictest2881-21timerwakeupswit20:22:160
682399211,0cyclictest0-21swapper/019:17:110
682399210,0cyclictest19232-21hostname00:22:000
682399210,0cyclictest11259-21latency00:07:090
682399210,0cyclictest0-21swapper/023:12:040
682399210,0cyclictest0-21swapper/023:12:040
682399210,0cyclictest0-21swapper/022:37:020
92550200,0irq/32-eth0-TxR0-21swapper/323:30:493
92550200,0irq/32-eth0-TxR0-21swapper/323:15:593
92550200,0irq/32-eth0-TxR0-21swapper/323:15:593
92550200,0irq/32-eth0-TxR0-21swapper/322:40:143
92450200,0irq/31-eth0-TxR29472-21sshd22:43:042
92450200,0irq/31-eth0-TxR0-21swapper/223:13:102
92450200,0irq/31-eth0-TxR0-21swapper/223:13:102
92350200,0irq/30-eth0-TxR0-21swapper/123:52:031
92350200,0irq/30-eth0-TxR0-21swapper/122:42:501
92350200,0irq/30-eth0-TxR0-21swapper/100:34:061
701200,0rcuc/71434-21scp23:50:577
682399203,0cyclictest2271-21df_abs23:52:010
682399203,0cyclictest0-21swapper/020:16:560
682399202,0cyclictest834-21nscd23:39:350
682399202,0cyclictest28487-21latency22:42:040
682399201,0cyclictest5320-21wc21:47:140
682399201,0cyclictest15022-21cron19:36:560
682399201,0cyclictest15022-21cron19:36:560
682399200,0cyclictest7349-21sshd00:01:570
682399200,0cyclictest0-21swapper/000:21:320
541200,0rcuc/53336-21scp22:55:015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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