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2026-01-05 - 09:46
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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 Mon Jan 05, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40892199183,11sleep10-21swapper/119:05:331
40982191175,12sleep00-21swapper/019:05:410
43312187172,11sleep30-21swapper/319:08:403
43402181164,13sleep20-21swapper/219:08:472
1833290,0sleep00-21swapper/023:20:210
17695290,0sleep10-21swapper/119:35:011
46319983,5cyclictest7372-21awk23:35:000
46319981,3cyclictest4898-21awk23:30:000
46369960,5cyclictest0-21swapper/200:00:142
46319961,5cyclictest19734-21munin-run00:00:010
46319960,3cyclictest7716-21sendmail-msp20:20:000
46419953,1cyclictest19983-21munin-run22:55:013
46419950,4cyclictest7589-21apt-get23:35:123
46419950,4cyclictest0-21swapper/300:00:153
46369950,5cyclictest5352-21apt-get22:25:012
46369950,2cyclictest0-21swapper/200:10:152
46329951,2cyclictest0-21swapper/121:15:131
46329951,2cyclictest0-21swapper/119:45:091
46329950,5cyclictest0-21swapper/121:30:171
46319952,2cyclictest0-21swapper/022:15:110
46319952,2cyclictest0-21swapper/021:55:120
46319950,5cyclictest0-21swapper/020:24:170
46419944,0cyclictest19186-21kworker/3:022:48:233
46419944,0cyclictest19186-21kworker/3:022:37:123
46419944,0cyclictest19186-21kworker/3:022:14:503
46419944,0cyclictest19186-21kworker/3:021:52:263
46419944,0cyclictest19186-21kworker/3:021:41:123
46419944,0cyclictest19186-21kworker/3:020:45:153
46419943,1cyclictest27049-21head20:55:213
46419942,2cyclictest19186-21kworker/3:020:30:213
46419942,2cyclictest19186-21kworker/3:020:15:233
46419942,2cyclictest19186-21kworker/3:020:10:233
46419942,2cyclictest19186-21kworker/3:019:35:153
46419942,2cyclictest19186-21kworker/3:000:35:153
46419942,1cyclictest774-21snmpd23:15:303
46419940,4cyclictest7839-21apt-get22:30:133
46419940,4cyclictest2632-21apt-get00:30:123
46419940,4cyclictest0-21swapper/322:04:003
46419940,4cyclictest0-21swapper/321:15:013
46419940,4cyclictest0-21swapper/321:00:133
46419940,4cyclictest0-21swapper/320:20:143
46419940,4cyclictest0-21swapper/319:20:133
46419940,4cyclictest0-21swapper/300:25:433
46419940,4cyclictest0-21swapper/300:06:223
46419940,3cyclictest2638-21/usr/sbin/munin23:25:203
46419940,3cyclictest21018-21grep19:40:163
46419940,3cyclictest2086-21users21:10:223
46419940,3cyclictest14775-21latency_hist23:50:003
46419940,3cyclictest13890-21memory22:40:183
46419940,3cyclictest12849-21cat20:30:013
46419940,3cyclictest1012-21df_inode20:05:143
46369943,1cyclictest3684-21grep20:10:172
46369943,1cyclictest22813-21/usr/sbin/munin19:45:112
46369942,1cyclictest17730-21/usr/sbin/munin22:50:102
46369941,3cyclictest0-21swapper/219:45:002
46369941,1cyclictest0-21swapper/219:25:152
46369941,1cyclictest0-21swapper/200:20:122
46369940,4cyclictest57050irq/130-eth020:35:102
46369940,4cyclictest0-21swapper/222:40:022
46369940,4cyclictest0-21swapper/221:35:142
46369940,4cyclictest0-21swapper/220:15:192
46369940,4cyclictest0-21swapper/200:25:152
46369940,3cyclictest8882-21irqstats21:25:162
46369940,3cyclictest8861-21ntp_states23:35:172
46369940,3cyclictest7583-21ntpq19:15:012
46369940,3cyclictest20021-21latency_hist21:50:012
46369940,3cyclictest17825-21cat19:35:002
46369940,3cyclictest17757-21cut21:45:012
46369940,3cyclictest16536-21ntp_states22:45:182
46369940,3cyclictest0-21swapper/221:20:132
46369940,2cyclictest0-21swapper/222:20:112
46369940,1cyclictest5106-21/usr/sbin/munin00:35:222
46369940,1cyclictest4719-21/usr/sbin/munin19:10:152
46369940,1cyclictest30243-21/usr/sbin/munin20:00:132
46369940,1cyclictest30200-21/usr/sbin/munin21:05:262
46369940,1cyclictest27376-21/usr/sbin/munin00:15:202
46369940,1cyclictest25234-21/usr/sbin/munin20:55:192
46369940,1cyclictest22765-21/usr/sbin/munin20:50:212
46369940,1cyclictest12795-21/usr/sbin/munin22:40:152
46369940,1cyclictest12541-21/usr/sbin/munin23:45:172
46329944,0cyclictest0-21swapper/121:40:021
46329944,0cyclictest0-21swapper/119:20:021
46329941,2cyclictest0-21swapper/123:30:111
46329941,2cyclictest0-21swapper/123:05:131
46329941,2cyclictest0-21swapper/122:25:131
46329941,2cyclictest0-21swapper/121:10:121
46329941,2cyclictest0-21swapper/121:00:131
46329941,2cyclictest0-21swapper/120:55:121
46329941,2cyclictest0-21swapper/119:50:171
46329941,2cyclictest0-21swapper/119:15:131
46329941,2cyclictest0-21swapper/100:25:121
46329941,2cyclictest0-21swapper/100:00:141
46329941,1cyclictest0-21swapper/122:30:121
46329941,1cyclictest0-21swapper/122:15:111
46319944,0cyclictest0-21swapper/020:47:160
46319944,0cyclictest0-21swapper/000:15:040
46319943,1cyclictest16113-21perl19:30:140
46319942,1cyclictest4947-21awk22:25:010
46319942,1cyclictest0-21swapper/020:25:120
46319942,1cyclictest0-21swapper/019:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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