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2021-01-21 - 06:30

Intel(R) Core(TM) i3-2310E CPU @ 2.10GHz, Linux 4.19.1-rt3 (Profile)

Latency plot of system in rack #8, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 2 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -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 50 highest latencies:
System rack8slot2.osadl.org (updated Thu Jan 21, 2021 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
306599120117,1cyclictest0-21swapper/319:18:093
306299115112,2cyclictest0-21swapper/019:18:090
3028021120,0sleep10-21swapper/100:21:051
3028021120,0sleep10-21swapper/100:21:051
2593210644,48sleep20-21swapper/219:15:242
247929238,40sleep30-21swapper/319:13:563
43372890,5sleep2306499cyclictest20:33:112
266542890,1sleep20-21swapper/221:58:202
78502830,0sleep10-21swapper/122:13:341
248628144,22sleep00-21swapper/019:14:010
277428045,21sleep10-21swapper/119:17:441
191002790,1sleep10-21swapper/123:36:321
3063995545,8cyclictest11416-21strings19:33:171
140542450,1sleep10-21swapper/120:58:191
131352450,2sleep013137-21proc_pri21:43:190
3062993830,5cyclictest6447-21perl19:23:120
146282370,0sleep30-21swapper/321:45:313
306299300,1cyclictest0-21swapper/023:43:070
3065992826,1cyclictest0-21swapper/320:48:193
214692280,1sleep121472-21ntp_kernel_pll_23:38:161
161022280,0sleep30-21swapper/322:58:263
306399240,3cyclictest5211-21rm00:28:171
3065992320,1cyclictest0-21swapper/319:48:083
306599230,21cyclictest0-21swapper/322:53:083
306599230,21cyclictest0-21swapper/319:28:063
306299230,21cyclictest0-21swapper/022:23:080
3064992220,1cyclictest0-21swapper/223:43:092
306499220,1cyclictest0-21swapper/219:33:082
306399220,3cyclictest5151-21latency_hist19:23:051
306399220,2cyclictest23336-21wc21:18:211
306399220,2cyclictest23336-21wc21:18:211
172222220,2sleep1241ktimersoftd/100:40:581
306399211,3cyclictest0-21swapper/120:43:081
3063992111,8cyclictest12927-21munin-run20:58:051
306399210,3cyclictest0-21swapper/119:43:131
306399210,2cyclictest19250-21latency_hist22:28:051
306299215,8cyclictest31896-21ssh22:43:050
3062992116,3cyclictest22516-21hddtemp_smartct21:18:130
3062992116,3cyclictest22516-21hddtemp_smartct21:18:130
306399206,12cyclictest20591-21sed21:53:061
306399205,12cyclictest25883-21grep23:08:231
306399194,3cyclictest30748-21wc21:28:051
306399191,4cyclictest0-21swapper/120:08:081
306399190,6cyclictest520-21ssh22:06:311
306399190,2cyclictest32644-21users21:28:251
3065991816,1cyclictest3850-21grep23:53:193
306399184,3cyclictest6899-21sed23:23:161
306399184,3cyclictest2290-21tr20:28:121
306399184,2cyclictest6736-21ssh22:49:041
306399184,2cyclictest21937-21ssh00:45:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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