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2023-01-30 - 06:57

x86 Intel Celeron G1620 @2700 MHz, 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 Mon Jan 30, 2023 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195912630,0sleep019589-21x2gosqlitewrapp22:02:300
271122460,0sleep00-21swapper/020:59:140
9302450,0sleep10-21swapper/122:58:461
144952450,0sleep10-21swapper/118:53:001
119452430,0sleep00-21swapper/020:48:120
125682420,0sleep00-21swapper/023:30:180
185492410,0sleep10-21swapper/122:25:241
158782360,0sleep00-21swapper/022:23:010
2834222517,4sleep10-21swapper/118:26:091
287332192,4sleep00-21swapper/018:27:140
264599160,1rtkit-daemon2644-21rtkit-daemon23:23:180
264599160,1rtkit-daemon2644-21rtkit-daemon18:41:140
29987991513,1cyclictest17261-21x2golistsession22:46:451
274402150,1sleep1201rcuc/122:08:201
264599150,1rtkit-daemon2644-21rtkit-daemon20:04:301
93002140,0sleep10-21swapper/121:09:401
29987991412,1cyclictest10198-21x2golistsession20:17:241
2998799140,13cyclictest0-21swapper/118:36:341
2998699140,1cyclictest6922-21x2gosqlitewrapp20:13:110
264599140,1rtkit-daemon2644-21rtkit-daemon19:33:551
264599140,1rtkit-daemon2644-21rtkit-daemon19:25:060
264599140,0rtkit-daemon2644-21rtkit-daemon23:03:161
29987991313,0cyclictest0-21swapper/123:52:151
29987991313,0cyclictest0-21swapper/122:40:551
29987991313,0cyclictest0-21swapper/120:37:141
29987991313,0cyclictest0-21swapper/118:47:241
2998799130,13cyclictest0-21swapper/121:47:141
2998799130,12cyclictest0-21swapper/123:36:551
2998799130,0cyclictest0-21swapper/118:32:441
29986991311,1cyclictest11166-21x2gosqlitewrapp21:33:510
264599130,1rtkit-daemon2644-21rtkit-daemon22:18:231
112252130,0sleep111226-21ssh23:29:091
29987991212,0cyclictest0-21swapper/123:44:251
29987991212,0cyclictest0-21swapper/122:32:441
29987991212,0cyclictest0-21swapper/122:15:041
29987991212,0cyclictest0-21swapper/121:56:241
2998799120,12cyclictest0-21swapper/123:15:251
2998799120,12cyclictest0-21swapper/121:37:441
2998799120,0cyclictest0-21swapper/120:53:541
29986991212,0cyclictest0-21swapper/023:16:520
29986991212,0cyclictest0-21swapper/022:13:510
2998699120,12cyclictest0-21swapper/023:39:220
2998699120,12cyclictest0-21swapper/021:44:010
2998699120,12cyclictest0-21swapper/021:44:010
2998699120,12cyclictest0-21swapper/020:23:310
2998699120,0cyclictest0-21swapper/020:38:510
264599120,7rtkit-daemon25468-21x2golistsession19:08:471
264599120,1rtkit-daemon2644-21rtkit-daemon23:10:271
150852120,0sleep015082-21grep22:45:370
29987991111,0cyclictest0-21swapper/123:22:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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