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2022-05-26 - 22:54

x86 Intel Xeon E3-1220 @3100 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #b, slot #1
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
Characteristics of the 100 highest latencies:
System rackbslot1.osadl.org (updated Fri May 20, 2022 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117772650,0sleep20-21swapper/223:05:122
3043526049,7sleep30-21swapper/319:06:213
3064225632,7sleep00-21swapper/019:08:080
3038125632,7sleep20-21swapper/219:05:572
3081425039,7sleep10-21swapper/119:09:491
201852180,0sleep00-21swapper/000:15:020
30947991513,1cyclictest17929-21snmpd21:14:153
30947991311,1cyclictest1328-31munin-html23:40:293
30933991311,1cyclictest17929-21snmpd19:16:481
30930991311,1cyclictest17929-21snmpd21:53:160
3093099130,12cyclictest18100-21munin-update21:30:000
3094799128,1cyclictest42-21ksoftirqd/319:34:593
30947991211,0cyclictest17929-21snmpd20:10:163
30947991211,0cyclictest17929-21snmpd19:28:453
30947991210,1cyclictest3576-21switchtime22:50:263
30947991210,1cyclictest0-21swapper/321:15:393
3094799120,1cyclictest27307-21kworker/u8:223:55:313
30942991211,0cyclictest17929-21snmpd20:49:332
30942991211,0cyclictest17929-21snmpd00:13:062
3094299120,11cyclictest30152-31munin-graph22:40:362
3094299120,11cyclictest0-21swapper/223:40:302
3094299120,11cyclictest0-21swapper/223:00:082
30933991210,1cyclictest22376-31munin-html19:45:311
30933991210,1cyclictest0-21swapper/100:30:391
3093399120,1cyclictest721-31munin-graph22:45:331
3093399120,1cyclictest0-21swapper/122:55:431
3093399120,11cyclictest15774-31munin-graph23:10:341
3093399120,11cyclictest0-21swapper/121:40:291
30930991211,0cyclictest17929-21snmpd21:05:450
3093099120,1cyclictest4468-31munin-graph19:15:400
3093099120,11cyclictest0-21swapper/000:35:410
3094799119,1cyclictest0-21swapper/322:30:353
3094799119,1cyclictest0-21swapper/321:45:023
3094799114,3cyclictest42-21ksoftirqd/320:25:013
30947991110,0cyclictest17929-21snmpd22:43:513
30947991110,0cyclictest0-21swapper/322:01:013
3094799110,10cyclictest0-21swapper/323:50:293
3094799110,10cyclictest0-21swapper/323:15:173
3094299119,1cyclictest17929-21snmpd23:18:372
3094299119,1cyclictest0-21swapper/219:55:072
3094299119,1cyclictest0-21swapper/200:05:322
30942991111,0cyclictest17929-21snmpd21:15:152
30942991110,0cyclictest17929-21snmpd19:48:162
3094299110,10cyclictest0-21swapper/222:54:002
3094299110,10cyclictest0-21swapper/220:00:072
3093399119,1cyclictest0-21swapper/123:42:231
3093399119,1cyclictest0-21swapper/121:58:241
3093399119,1cyclictest0-21swapper/120:21:121
30933991110,0cyclictest0-21swapper/121:30:091
3093399110,10cyclictest0-21swapper/123:28:391
3093399110,10cyclictest0-21swapper/122:44:071
3093399110,10cyclictest0-21swapper/122:26:201
3093399110,10cyclictest0-21swapper/121:19:391
3093399110,10cyclictest0-21swapper/119:55:031
3093099119,1cyclictest0-21swapper/020:40:160
3093099119,1cyclictest0-21swapper/019:31:000
3093099110,10cyclictest0-21swapper/023:52:240
3094799109,0cyclictest17929-21snmpd20:45:063
3094799108,1cyclictest0-21swapper/322:20:533
3094799102,4cyclictest13322-21dig23:10:003
3094299109,0cyclictest0-21swapper/222:25:062
3094299108,1cyclictest0-21swapper/200:30:242
30942991010,0cyclictest17929-21snmpd22:05:022
3094299100,9cyclictest0-21swapper/219:31:132
3094299100,9cyclictest0-21swapper/219:18:462
3093399109,0cyclictest17929-21snmpd23:16:451
3093399109,0cyclictest0-21swapper/123:00:051
3093399109,0cyclictest0-21swapper/100:15:001
3093399108,1cyclictest17929-21snmpd22:13:201
3093399108,1cyclictest0-21swapper/123:52:041
3093399108,1cyclictest0-21swapper/120:49:471
3093399108,1cyclictest0-21swapper/119:36:191
3093399108,1cyclictest0-21swapper/119:27:451
3093399100,9cyclictest0-21swapper/123:36:151
3093399100,9cyclictest0-21swapper/123:21:041
3093399100,9cyclictest0-21swapper/122:18:461
3093399100,9cyclictest0-21swapper/120:11:121
3093099109,0cyclictest17929-21snmpd23:00:180
3093099108,1cyclictest9214-31munin-graph22:05:410
3093099108,1cyclictest17929-21snmpd23:31:530
3093099108,1cyclictest0-21swapper/023:35:370
3093099108,1cyclictest0-21swapper/021:45:010
3093099108,1cyclictest0-21swapper/020:45:170
3093099100,9cyclictest0-21swapper/022:55:440
3093099100,1cyclictest0-21swapper/022:10:220
309479997,1cyclictest42-21ksoftirqd/320:30:013
309479997,1cyclictest42-21ksoftirqd/319:15:013
309479997,1cyclictest42-21ksoftirqd/300:15:003
309479997,1cyclictest17929-21snmpd21:33:433
309479997,1cyclictest0-21swapper/323:24:403
309479997,1cyclictest0-21swapper/322:10:043
309479997,1cyclictest0-21swapper/321:22:453
309479991,3cyclictest25857-21munin-update00:25:003
309479990,1cyclictest0-21swapper/322:15:443
309429997,1cyclictest33-21ksoftirqd/223:10:002
309429997,1cyclictest0-21swapper/223:53:452
309429997,1cyclictest0-21swapper/222:55:282
309429994,4cyclictest752-21dbus-daemon19:45:002
309429992,2cyclictest33-21ksoftirqd/220:40:012
309429991,5cyclictest10311-31munin-html23:55:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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