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2024-04-19 - 08:53
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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 50 highest latencies:
System rackeslot5.osadl.org (updated Fri Apr 19, 2024 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20068993428,5cyclictest3232-21cat22:45:201
20068993326,3cyclictest11670-21diskmemload22:36:241
2007199321,30cyclictest29428-21cut23:15:012
20068993228,3cyclictest11670-21diskmemload23:54:131
20068993228,3cyclictest11670-21diskmemload23:18:211
2006899320,0cyclictest11670-21diskmemload00:10:561
2006499320,1cyclictest0-21swapper/022:17:420
2007299310,30cyclictest27008-21cron19:25:013
2007299310,30cyclictest27008-21cron19:25:003
2007299310,30cyclictest15573-21sh21:13:403
20068993128,3cyclictest11670-21diskmemload23:24:481
20068993128,2cyclictest0-21swapper/122:41:391
20068993127,3cyclictest11670-21diskmemload21:35:461
2006899310,30cyclictest11670-21diskmemload21:21:091
2006899310,0cyclictest0-21swapper/122:11:281
2006899310,0cyclictest0-21swapper/121:11:311
2006899310,0cyclictest0-21swapper/100:21:431
2006499310,30cyclictest7493-21sed22:50:170
2006499310,30cyclictest5644-21munin-run00:35:010
2006499310,30cyclictest17944-21kworker/u8:022:40:110
2006499310,30cyclictest11670-21diskmemload00:22:290
20072993029,1cyclictest0-21swapper/321:55:013
20072993028,1cyclictest10643-21sh21:44:263
20072993028,1cyclictest0-21swapper/323:14:403
2007299300,29cyclictest20929-21ssh23:05:133
2007299300,29cyclictest20929-21ssh23:05:133
2007299300,29cyclictest11670-21diskmemload23:56:173
2007299300,29cyclictest11670-21diskmemload22:35:133
2007299300,29cyclictest11670-21diskmemload21:15:543
2007299300,29cyclictest0-21swapper/323:35:113
2007299300,29cyclictest0-21swapper/322:41:553
2007299300,29cyclictest0-21swapper/300:25:523
2007299300,1cyclictest25205-21awk21:25:003
2007299300,1cyclictest11670-21diskmemload23:33:043
20071993029,1cyclictest10813-21apt-get23:30:112
20071993028,1cyclictest11670-21diskmemload21:15:072
20071993028,1cyclictest11670-21diskmemload00:20:012
20071993028,0cyclictest0-21swapper/223:21:232
20071993028,0cyclictest0-21swapper/221:51:142
2007199300,29cyclictest32125-21chrt23:52:222
2007199300,29cyclictest31821-21ssh22:41:152
2007199300,1cyclictest38772sleep222:46:092
20068993028,2cyclictest0-21swapper/122:53:411
20068993028,1cyclictest31001-21sh00:25:301
20068993027,3cyclictest11670-21diskmemload23:49:101
20068993027,2cyclictest0-21swapper/100:07:271
20068993026,4cyclictest1886-21perf21:35:011
20068993026,4cyclictest11670-21diskmemload00:00:251
20068993026,3cyclictest11670-21diskmemload23:12:081
2006899300,30cyclictest0-21swapper/121:42:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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