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2022-01-26 - 12:43

Intel(R) Celeron(R) M processor 1.50GHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #6, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack6slot5.osadl.org (updated Wed Jan 26, 2022 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151769997105242,4465cyclictest12406-21kworker/0:119:12:330
151769997045125,4569cyclictest12406-21kworker/0:119:16:200
142412579184,203sleep00-21swapper19:05:340
151769955036,467cyclictest19695-21ssh22:00:180
151769953231,90cyclictest9068-1kworker/0:1H20:21:440
151769949735,448cyclictest12-21rcu_sched22:36:380
151769948437,205cyclictest16013-21unixbench-2d21:51:150
151769947846,257cyclictest26604-21ssh23:23:500
151769947736,380cyclictest13-21rcuc/021:43:230
151769947633,429cyclictest28415-21runrttasks23:26:320
151769947022,214cyclictest13-21rcuc/022:30:490
151769946632,373cyclictest23849-21munin-node22:10:530
151769946631,374cyclictest22383-21ssh00:22:260
151769946335,367cyclictest15211-21ssh00:07:110
151769946232,369cyclictest19001-21ssh23:06:460
151769946034,365cyclictest387650irq/10-eth021:13:070
151769945732,365cyclictest387650irq/10-eth023:04:160
151769945532,89cyclictest11-21rcu_preempt22:41:480
151769945432,361cyclictest7386-21ssh21:33:590
151769944032,348cyclictest387650irq/10-eth020:05:580
151769943556,366cyclictest387650irq/10-eth021:57:380
151769943135,213cyclictest11-21rcu_preempt19:26:520
151769942935,211cyclictest11-21rcu_preempt00:00:360
151769942729,382cyclictest14014-21ssh21:46:480
151769941939,260cyclictest32626-21ssh21:19:190
151769941839,365cyclictest9005-21ssh21:36:250
151769941838,366cyclictest13-21rcuc/019:48:060
151769941647,260cyclictest4687-21snmpd22:26:200
151769941234,355cyclictest4687-21snmpd21:09:100
151769941231,367cyclictest8209-21kworker/u2:023:57:280
151769941036,360cyclictest4167-21ssh21:26:260
151769940933,362cyclictest17632-21ssh00:12:240
151769940834,360cyclictest4687-21snmpd20:28:390
151769940834,360cyclictest28058-21diskmemload22:59:440
151769940823,371cyclictest20466-21sshd20:48:530
151769940737,357cyclictest387650irq/10-eth000:27:480
151769940734,359cyclictest31555-21kworker/u2:123:41:430
151769940635,358cyclictest387650irq/10-eth023:39:110
151769940434,356cyclictest4666-21lldpd20:13:250
151769940432,359cyclictest7452-1kworker/u3:222:46:040
151769940432,358cyclictest29466-21ssh00:37:180
151769940429,362cyclictest11-21rcu_preempt00:16:200
151769940417,373cyclictest7687-21munin-node20:15:500
151769940238,349cyclictest25909-21ssh00:30:390
151769940138,350cyclictest11-21rcu_preempt22:54:090
151769940137,349cyclictest6466-21cron23:50:010
151769940037,349cyclictest11-21rcu_preempt19:35:420
151769939936,349cyclictest11-21rcu_preempt20:35:380
151769939935,349cyclictest6549-21copy23:50:480
151769939860,268cyclictest24345-21ssh23:19:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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