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2022-01-23 - 20:17

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 all highest latencies:
System rack6slot5.osadl.org (updated Sun Jan 23, 2022 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6319995275113,4411cyclictest32480-21kworker/0:107:12:350
6319991884742,4436cyclictest32480-21kworker/0:107:16:110
327382575182,236sleep00-21swapper07:07:410
6319952066,393cyclictest101ktimersoftd/011:46:200
6319948551,373cyclictest17535-21ssh09:17:570
6319948158,249cyclictest5267-21runrttasks09:25:470
6319946219,383cyclictest1202-21awk09:55:310
6319946078,321cyclictest387650irq/10-eth011:10:130
6319946017,381cyclictest25092-21ssh10:50:240
6319945916,382cyclictest24312-21ssh09:32:520
6319945814,383cyclictest5267-21runrttasks12:03:400
6319945814,383cyclictest30568-21ssh12:15:490
6319945615,380cyclictest27367-21sshd12:08:330
6319945611,384cyclictest30769-21proc_pri11:01:390
6319945210,381cyclictest4666-21lldpd10:16:320
6319945010,426cyclictest4666-21lldpd11:38:380
6319944450,381cyclictest101ktimersoftd/012:21:210
6319944258,203cyclictest14752-21kworker/0:010:34:590
6319944156,372cyclictest620-21cyclictest10:47:340
6319943769,309cyclictest0-21swapper12:13:480
6319943541,211cyclictest11274-21latency11:31:200
6319942050,357cyclictest387650irq/10-eth009:42:070
6319941976,283cyclictest387650irq/10-eth011:41:160
6319941655,179cyclictest0-21swapper11:19:000
6319941648,354cyclictest4734-21gdm-simple-gree08:33:590
6319941636,365cyclictest26902-21apt-get08:17:080
6319941350,348cyclictest6163-21copy11:22:030
6319941252,300cyclictest0-21swapper07:53:150
6319941241,189cyclictest101ktimersoftd/010:30:000
6319940838,370cyclictest0-21swapper09:05:220
6319940627,197cyclictest31455-21kworker/u2:211:29:070
6319940535,370cyclictest0-21swapper09:14:410
6319940335,368cyclictest0-21swapper08:24:460
6319940332,368cyclictest17772-21kworker/u2:110:39:090
6319940060,326cyclictest4666-21lldpd12:40:100
6319940038,362cyclictest0-21swapper07:21:030
6319939935,359cyclictest6125-21ssh12:32:310
6319939935,349cyclictest27223-21seq10:55:070
6319939635,361cyclictest0-21swapper07:35:510
6319939535,360cyclictest0-21swapper08:40:160
6319939535,347cyclictest7672-21ssh10:09:290
6319939433,361cyclictest0-21swapper07:29:110
6319939431,363cyclictest0-21swapper07:34:380
6319939332,179cyclictest0-21swapper10:40:380
6319939314,366cyclictest101ktimersoftd/009:20:360
6319939312,367cyclictest11874-21copy10:22:140
6319939128,363cyclictest0-21swapper11:53:080
6319939123,368cyclictest0-21swapper12:28:480
6319938635,289cyclictest12859-21cut07:40:250
6319938630,296cyclictest2676-21munin-node09:50:280
6319938314,308cyclictest4666-21lldpd09:40:000
6319938135,346cyclictest0-21swapper08:57:100
6319938035,345cyclictest0-21swapper10:14:410
6319938034,285cyclictest5267-21runrttasks08:26:000
6319937934,345cyclictest0-21swapper08:35:330
6319937732,345cyclictest12-21rcu_sched11:58:570
6319937632,344cyclictest11-21rcu_preempt08:46:200
6319937531,287cyclictest29427-21grep09:45:470
6319935987,259cyclictest0-21swapper07:56:500
6319935986,260cyclictest9898-21copy09:00:100
6319935886,259cyclictest0-21swapper08:03:500
6319935186,252cyclictest5028-21ssh10:02:430
6319935186,252cyclictest4687-21snmpd08:08:240
6319935186,251cyclictest6142-21copy08:50:140
6319935086,251cyclictest1260-21ssh11:09:130
6319935086,251cyclictest0-21swapper07:47:210
6319934986,250cyclictest0-21swapper08:11:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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