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2025-11-27 - 23:35
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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 100 highest latencies:
System rack5slot2.osadl.org (updated Thu Nov 27, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70242203186,12sleep10-21swapper/107:07:071
69812196179,12sleep30-21swapper/307:06:333
72042185167,13sleep00-21swapper/007:09:270
71962120103,12sleep20-21swapper/207:09:212
108072510,0sleep20-21swapper/209:30:002
275112500,1sleep327514-21cpuspeed12:20:113
65202470,0sleep22845-21diskmemload11:20:172
26792460,0sleep00-21swapper/010:45:400
48152450,0sleep10-21swapper/109:59:021
18122450,0sleep10-21swapper/110:45:211
146002440,0sleep00-21swapper/011:24:520
124412430,0sleep00-21swapper/012:12:080
319552420,0sleep00-21swapper/011:16:390
298972410,0sleep20-21swapper/207:50:232
239422400,0sleep20-21swapper/211:12:532
199262160,1sleep10-21swapper/112:32:311
179162130,0sleep10-21swapper/111:42:141
742599111,9cyclictest0-21swapper/010:50:110
314202100,0sleep20-21swapper/209:55:222
74259991,4cyclictest4127-21basename10:15:010
74259985,3cyclictest0-21swapper/010:28:020
74259982,5cyclictest19161-21cat07:30:150
74259981,0cyclictest0-21swapper/012:15:120
74259980,1cyclictest7050-21munin-run12:10:000
74259980,1cyclictest29572-21munin-run11:00:010
74259980,1cyclictest20392-21munin-run08:40:000
74259980,1cyclictest17534-21users08:30:200
74259971,1cyclictest5200-21taskset08:08:170
74259971,1cyclictest4211-21netstat11:35:160
74259971,1cyclictest28130-21sed12:20:130
74259971,1cyclictest24030-21basename07:40:160
74259971,1cyclictest12266-21grep09:30:170
74259971,1cyclictest11780-21cat08:20:140
74259971,1cyclictest0-21swapper/008:00:090
74259970,1cyclictest9823-21diskstats09:45:130
74259970,1cyclictest9352-21ssh12:27:010
74259970,1cyclictest5227-21df_inode10:15:150
74259970,1cyclictest3937-21diskstats09:10:140
74259970,1cyclictest31442-21ssh09:40:120
74259970,1cyclictest29197-21memory07:50:190
74259970,1cyclictest2842-21munin-run09:10:010
74259970,1cyclictest27826-21munin-run08:55:000
74259970,1cyclictest26900-21ntp_states07:45:170
74259970,1cyclictest26156-21cat12:35:190
74259970,1cyclictest24439-21perl09:20:150
74259970,1cyclictest23390-21df11:45:140
74259970,1cyclictest22297-21munin-run11:45:000
74259970,1cyclictest2229-21apt-get10:30:110
74259970,1cyclictest22260-21apt-get10:40:120
74259970,1cyclictest22167-21tail09:35:120
74259970,1cyclictest21756-21latency_hist10:40:010
74259970,1cyclictest21196-21df_inode07:35:120
74259970,1cyclictest21196-21df_inode07:35:120
74259970,1cyclictest20649-21apt08:40:110
74259970,1cyclictest20173-21apt-get12:00:090
74259970,1cyclictest17351-21munin-run11:10:010
74259970,1cyclictest14871-21ntp_states09:15:170
74259970,1cyclictest13964-21perl08:25:130
74259970,1cyclictest13017-21latency_hist07:20:010
74259970,1cyclictest10854-21df11:55:130
74259970,1cyclictest10513-21munin-run08:20:000
74259970,1cyclictest0-21swapper/009:00:100
74259970,0cyclictest23127-21apt-get08:45:140
74309960,5cyclictest29123-21chrt12:37:071
74309960,5cyclictest130782sleep111:07:191
74259961,5cyclictest10034-21kworker/0:211:10:010
74259960,1cyclictest8064-21df_inode07:10:140
74259960,1cyclictest7510-21df_inode10:00:130
74259960,1cyclictest6300-21df08:10:120
74259960,1cyclictest32612-21ssh11:50:050
74259960,1cyclictest30869-21rm11:00:140
74259960,1cyclictest30569-21apt07:55:110
74259960,1cyclictest29865-21df09:55:130
74259960,1cyclictest28059-21apt08:55:110
74259960,1cyclictest25312-21ssh11:30:120
74259960,1cyclictest18988-21ssh09:50:030
74259960,1cyclictest1868-21df_inode09:25:140
74259960,1cyclictest17561-21df10:05:150
74259960,1cyclictest16252-21df07:25:110
74259960,1cyclictest15963-21df11:25:150
74259960,1cyclictest15245-21df_inode10:20:130
74259960,1cyclictest14725-21tr12:30:120
74259960,1cyclictest13798-21diskstats07:20:140
74399955,0cyclictest28353-21kworker/3:012:19:553
74399955,0cyclictest28353-21kworker/3:011:57:313
74399955,0cyclictest28353-21kworker/3:009:54:213
74399955,0cyclictest28353-21kworker/3:008:35:593
74399955,0cyclictest28353-21kworker/3:008:24:463
74399955,0cyclictest28353-21kworker/3:008:02:233
74399955,0cyclictest28353-21kworker/3:007:17:363
74399950,5cyclictest0-21swapper/311:52:573
74399950,5cyclictest0-21swapper/310:51:253
74399950,4cyclictest5960-21df11:20:153
74399950,4cyclictest582-21/usr/sbin/munin09:05:143
74399950,4cyclictest28105-21/usr/sbin/munin07:50:233
74399950,4cyclictest0-21swapper/307:40:133
74349955,0cyclictest0-21swapper/211:34:412
74349953,2cyclictest9133-21kworker/2:111:03:492
74349953,1cyclictest21177-21ssh10:06:412
74349950,5cyclictest24158-21ssh10:56:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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