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2024-04-25 - 02:29
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 highest latencies:
System rack3slot6.osadl.org (updated Thu Apr 25, 2024 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282921270,4chrt2827-21diskstats23:25:190
1190721050,4chrt11902-21grep19:20:210
100232910,4chrt10019-21latency_hist19:15:010
50262900,4chrt5027-21latency_hist22:05:020
784228215,28sleep00-21swapper/019:08:070
158002810,5chrt15795-21grep22:30:360
239432790,4chrt23486-21apt-get20:00:120
185792770,4chrt18577-21df_inode19:45:210
102552750,4chrt10257-21mii-tool20:50:210
267582740,5chrt26757-21aten2.4_r3power21:35:190
264952720,4chrt26493-21grep23:00:370
822399607,42cyclictest4293-21apt-get23:30:100
8223995230,18cyclictest4947-21snmpd20:06:330
8223995215,31cyclictest6220-21sensors_temp22:05:420
8223995019,22cyclictest21650-21cat21:20:190
8223995017,24cyclictest1047-21cat23:20:190
8223995017,17cyclictest405-21dbus-daemon19:35:000
8223995010,35cyclictest0-21swapper/021:52:290
822399498,19cyclictest16459-21apt-get19:40:100
822399492,18cyclictest10291-21seq22:16:590
8223994828,16cyclictest14-21ksoftirqd/023:36:070
822399478,16cyclictest11665-21apt-get20:55:110
822399474,37cyclictest14590-21munin-run22:30:000
8223994733,9cyclictest7229-21apt-get22:10:100
822399473,39cyclictest13312-21/usr/sbin/munin23:55:300
8223994731,11cyclictest1798-21sshd20:27:000
8223994731,11cyclictest13582-21seq19:28:580
8223994727,13cyclictest1481-21apt-get21:55:120
822399472,16cyclictest16238-21runrttasks19:39:350
822399468,16cyclictest29487-21apt-get23:10:090
822399467,17cyclictest6289-21apt-get20:40:100
822399467,17cyclictest21832-21apt-get19:55:130
822399467,16cyclictest15572-21apt-get21:05:130
822399464,37cyclictest23236-21python300:20:420
822399463,38cyclictest3464-21python320:30:380
8223994631,10cyclictest5514-21users20:35:370
8223994629,13cyclictest14-21ksoftirqd/022:20:120
822399462,38cyclictest28545-21/usr/sbin/munin21:40:190
822399462,16cyclictest24832-21vmstat22:55:360
8223994620,23cyclictest0-21swapper/022:42:230
8223994618,19cyclictest18082-21cat21:10:400
822399458,15cyclictest31181-21apt-get20:20:140
822399453,38cyclictest157-21usb-storage23:50:410
822399453,37cyclictest8780-21ntp_states20:45:300
822399453,37cyclictest20485-21df_inode22:45:170
822399453,35cyclictest22130-21runrttasks22:50:190
8223994531,9cyclictest10072-21diskstats23:45:200
822399452,9cyclictest16515-21apt-get22:35:100
8223994528,13cyclictest20162-21tr21:15:300
8223994528,12cyclictest30548-21seq20:16:190
8223994528,11cyclictest28106-21memory20:10:270
8223994525,16cyclictest14-21ksoftirqd/021:01:330
822399452,14cyclictest24694-21latency00:25:280
209252450,4chrt20927-21threads19:50:380
822399447,14cyclictest15166-21apt-get00:00:120
822399444,34cyclictest20342-21sshd00:14:140
822399443,35cyclictest25968-21/usr/sbin/munin00:30:240
822399443,13cyclictest32086-21ps23:15:340
8223994430,9cyclictest16983-21aten2.4_r3power00:05:150
8223994410,9cyclictest0-21swapper/023:42:450
822399438,30cyclictest0-21swapper/021:30:180
8223994324,10cyclictest20761-21telnet00:15:220
822399423,34cyclictest4947-21snmpd21:28:250
822399423,34cyclictest28178-21memory23:05:240
8223994229,8cyclictest288142sleep000:35:340
822399402,10cyclictest31801-21runrttasks21:48:350
8223994017,20cyclictest0-21swapper/019:17:430
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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