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2023-01-27 - 14:45

x86 Intel Celeron G3900 @2800 MHz, Linux 5.10.35-rt39 (Profile)

Latency plot of system in rack #c, 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 -Sp99 -i200 -h400 -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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackcslot5.osadl.org (updated Fri Jan 27, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271322450,0sleep10-21swapper/121:46:061
2941099330,32cyclictest10027-21meminfo19:40:181
19142320,0sleep10-21swapper/119:20:151
2941099270,26cyclictest19761-21meminfo20:05:161
2940999270,26cyclictest3747-21meminfo22:10:170
2940999270,26cyclictest31065-21meminfo23:20:170
2941099260,25cyclictest6121-21meminfo19:30:171
2941099260,25cyclictest30276-21meminfo21:55:171
2940999260,25cyclictest14670-21meminfo21:15:190
2941099231,3cyclictest15575-21apt-get00:05:131
2941099230,22cyclictest23652-21meminfo20:15:171
2941099223,1cyclictest2531-21sort23:30:181
2941099221,5cyclictest23381-21apt-get00:25:151
2941099220,21cyclictest6873-21meminfo20:55:221
2941099220,1cyclictest2327-21apt-get20:45:141
2940999220,22cyclictest27149-21meminfo23:10:160
2940999220,21cyclictest26384-21meminfo21:45:200
2941099211,6cyclictest28233-21irqstats21:50:171
2941099211,19cyclictest30528-21tr23:20:131
2940999210,20cyclictest17820-21meminfo20:00:180
2940999210,18cyclictest21706-21meminfo20:10:160
2941099201,2cyclictest130102sleep119:49:111
2941099200,19cyclictest21306-21meminfo22:55:251
2941099200,17cyclictest7819-21ntp_states22:20:261
2941099192,3cyclictest300-21apt-get20:40:161
2941099191,17cyclictest23494-21runrttasks21:38:571
2941099190,7cyclictest0-21swapper/122:00:131
2941099190,3cyclictest0-21swapper/123:19:371
2941099190,3cyclictest0-21swapper/122:35:151
2940999192,16cyclictest11905-21diskmemload23:05:150
2940999190,18cyclictest32654-21meminfo19:15:220
2941099184,13cyclictest30051-21kworker/u4:523:36:211
2941099183,1cyclictest18099-21sshd22:45:281
2941099181,4cyclictest0-21swapper/121:25:191
2941099181,1cyclictest8342-21grep23:45:201
2941099180,18cyclictest15463-21meminfo22:40:191
2941099180,17cyclictest10775-21meminfo21:05:181
2940999181,6cyclictest21432-21apt-get00:20:140
2940999180,18cyclictest9614-21meminfo22:25:240
2941099171,2cyclictest32410-21cpu23:25:131
2941099171,2cyclictest32410-21cpu23:25:121
2940999170,16cyclictest23260-21meminfo23:00:170
2941099162,3cyclictest24903-21tail23:05:151
2941099162,1cyclictest15049-21perf19:55:011
2941099161,3cyclictest18697-21apt-get22:50:121
2941099161,1cyclictest0-21swapper/100:10:171
2941099160,2cyclictest25266-21grep20:20:151
2941099160,16cyclictest12322-21meminfo23:55:191
2941099160,15cyclictest4926-21meminfo20:50:171
2940999164,6cyclictest21749-21ls22:55:300
2940999163,12cyclictest31138-21kworker/u4:022:15:580
2940999160,16cyclictest16645-21meminfo21:20:210
2940999160,15cyclictest14289-21meminfo00:00:200
2941099151,2cyclictest0-21swapper/119:55:131
2941099150,15cyclictest8061-21meminfo19:35:181
2941099150,15cyclictest20529-21meminfo21:30:191
2940999153,11cyclictest25230-21kworker/u4:222:04:240
2940999150,14cyclictest31461-21meminfo20:35:210
2940999150,14cyclictest18179-21meminfo00:10:210
2941099141,3cyclictest2940-21munin-run22:10:001
2941099141,13cyclictest0-21swapper/119:15:171
2941099140,2cyclictest0-21swapper/122:10:131
2941099140,14cyclictest24437-21meminfo21:40:171
2941099140,13cyclictest0-21swapper/121:14:051
2940999145,6cyclictest7182-21/usr/sbin/munin22:20:200
2940999140,14cyclictest11968-21meminfo19:45:160
2940999140,14cyclictest1001-21meminfo20:40:230
2940999140,13cyclictest12725-21meminfo21:10:170
2941099131,2cyclictest24142-21taskset23:02:291
2941099131,2cyclictest14105-21cut21:15:141
2941099131,2cyclictest0-21swapper/120:39:351
2941099131,12cyclictest0-21swapper/121:20:241
2941099130,12cyclictest21705-21meminfo20:10:171
2940999133,7cyclictest15855-21kworker/u4:022:51:590
2940999133,4cyclictest30051-21kworker/u4:523:33:350
2940999132,5cyclictest0-21swapper/000:05:130
2940999131,11cyclictest13471-21kworker/u4:421:52:420
2940999130,12cyclictest25618-21meminfo20:20:170
2941099126,6cyclictest21723-21grep00:20:171
2941099126,5cyclictest27452-21grep23:10:201
2941099126,5cyclictest10977-21tail23:50:281
2941099125,6cyclictest9437-21tail21:00:261
2941099124,4cyclictest15086-21runrttasks00:01:381
2941099122,5cyclictest29433-21apt-get19:10:121
2941099121,10cyclictest0-21swapper/119:25:131
2940999125,5cyclictest11319-21if_ecat022:30:150
2940999125,4cyclictest2321-21runrttasks00:37:590
2940999124,5cyclictest13548-21ls22:35:160
2940999122,4cyclictest0-21swapper/019:35:130
2940999121,6cyclictest3205-21grep20:45:200
2940999120,4cyclictest0-21swapper/019:20:150
2940999120,12cyclictest17404-21meminfo22:45:170
2941099116,4cyclictest18744-21seq20:02:571
2941099115,5cyclictest30382-21chrt20:32:231
2941099115,5cyclictest28709-21chrt00:36:221
2941099112,5cyclictest28001-21ls20:25:211
2941099110,7cyclictest11905-21diskmemload22:32:331
2940999111,7cyclictest23376-21/usr/sbin/munin00:25:210
2940999111,6cyclictest15203-21apt-get19:55:120
2940999111,5cyclictest0-21swapper/021:05:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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