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2021-01-20 - 15:17

Intel(R) Celeron(R) CPU G1620 @ 2.70GHz, Linux 5.4.17-rt9 (Profile)

Latency plot of system in rack #9, 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 50 highest latencies:
System rack9slot5.osadl.org (updated Wed Jan 20, 2021 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116772950,0sleep111676-21x2golistsession11:23:371
48012890,0sleep14798-21x2golistsession08:00:131
238762450,0sleep10-21swapper/107:38:481
191092450,0sleep10-21swapper/111:06:341
178662430,0sleep00-21swapper/008:21:190
307492420,0sleep10-21swapper/107:02:501
80782410,1sleep121-21ksoftirqd/108:04:211
87812310,0sleep18783-21readlink10:08:401
87812310,0sleep18783-21readlink10:08:401
215792282,4sleep00-21swapper/006:52:160
2395722215,4sleep10-21swapper/106:53:561
264599170,1rtkit-daemon2644-21rtkit-daemon11:42:450
2531499160,2cyclictest21817-21x2golistsession11:54:071
2531499160,15cyclictest0-21swapper/110:16:571
2531499160,15cyclictest0-21swapper/109:38:361
264599150,1rtkit-daemon2644-21rtkit-daemon08:22:261
2531499150,14cyclictest4533-21x2golistsession08:48:461
264599140,1rtkit-daemon2644-21rtkit-daemon09:41:310
264599140,1rtkit-daemon2644-21rtkit-daemon07:19:520
264599140,1rtkit-daemon2644-21rtkit-daemon07:08:070
25314991412,1cyclictest12304-21x2gosqlitewrapp08:59:561
2531499140,14cyclictest0-21swapper/112:19:271
2531499140,13cyclictest28786-21x2gosqlitewrapp11:36:371
25313991413,1cyclictest8193-21x2gosqlitewrapp08:04:400
25313991411,2cyclictest30379-21x2golistsession12:00:410
2531399140,13cyclictest0-21swapper/011:54:510
2531499134,2cyclictest5352-21ssh09:42:561
2531499134,2cyclictest27829-21ssh11:58:121
25314991313,0cyclictest0-21swapper/110:39:571
25314991313,0cyclictest0-21swapper/109:34:161
25314991312,1cyclictest0-21swapper/111:13:371
25314991312,1cyclictest0-21swapper/107:48:361
2531499130,13cyclictest0-21swapper/112:05:271
2531399130,13cyclictest0-21swapper/012:22:210
2531399130,13cyclictest0-21swapper/011:09:410
49942120,0sleep10-21swapper/109:17:281
264599120,1rtkit-daemon2644-21rtkit-daemon11:20:040
25314991212,0cyclictest0-21swapper/111:44:171
25314991212,0cyclictest0-21swapper/111:21:171
25314991212,0cyclictest0-21swapper/110:27:171
25314991212,0cyclictest0-21swapper/110:04:271
25314991212,0cyclictest0-21swapper/108:32:561
25314991212,0cyclictest0-21swapper/108:16:161
25314991212,0cyclictest0-21swapper/107:54:161
25314991211,1cyclictest0-21swapper/109:51:171
25314991211,1cyclictest0-21swapper/109:27:461
25314991210,1cyclictest725-21x2gosqlitewrapp10:52:271
2531499120,12cyclictest0-21swapper/107:31:561
2531499120,0cyclictest0-21swapper/111:28:571
25313991212,0cyclictest0-21swapper/011:27:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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