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2026-08-06 - 11:32
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Thu Aug 06, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30111992811,2cyclictest10562-21mii-tool19:30:140
30123992623,2cyclictest9881-21turbostat00:15:012
30123992423,0cyclictest0-21swapper/223:55:162
30118992412,10cyclictest15538-21munin-run21:35:011
3012399235,3cyclictest11755-21postgres19:31:212
3012399233,19cyclictest0-21swapper/220:03:352
30123992317,2cyclictest0-21swapper/220:17:032
3011899238,1cyclictest1100-21snmpd22:16:411
30111992321,1cyclictest9-21ksoftirqd/022:22:070
3011199230,5cyclictest5044-21needreboot19:20:170
3011199230,5cyclictest5044-21needreboot19:20:170
3011199230,5cyclictest0-21swapper/022:00:170
3012399225,2cyclictest5570-21latency00:05:222
3012399225,2cyclictest14931-21gpgv22:30:012
3012399225,2cyclictest10674-21cut22:20:192
3012399225,16cyclictest29813-21expr20:05:182
3012399225,16cyclictest14039-21sed23:25:022
3012399224,17cyclictest9138-21ntpq21:20:212
30123992219,2cyclictest3242-21gpgv22:10:012
30123992219,2cyclictest2579-21cat21:10:182
30123992219,2cyclictest25172-21sort22:45:192
30123992219,2cyclictest23173-21mailstats21:45:222
30123992219,2cyclictest21404-21nfsd420:45:172
30123992219,2cyclictest2007-21systemd-journal19:15:042
30123992219,2cyclictest18233-21cat00:30:012
30123992218,3cyclictest32357-21cat22:05:012
30123992218,3cyclictest24904-21df21:50:152
30123992216,5cyclictest3991-21H222:10:212
3012399221,18cyclictest0-21swapper/219:11:212
3011899226,15cyclictest4217-21perf21:15:001
3011199224,11cyclictest7060-21munin-run21:20:000
3012399214,2cyclictest29059-21if_enp1s021:00:152
3012399214,16cyclictest5073-21needreboot22:10:172
3012399214,16cyclictest32674-21cat23:00:142
3012399214,16cyclictest24572-21sed20:50:202
3012399214,16cyclictest18517-21cpu00:30:142
3012399214,16cyclictest14876-21expr20:35:142
3012399214,16cyclictest0-21swapper/219:35:122
30123992118,2cyclictest7937-21awk19:25:192
30123992118,2cyclictest31498-21master22:55:452
30123992118,2cyclictest28249-21netstat21:55:212
30123992118,2cyclictest2511-21cat20:15:002
30123992118,2cyclictest24955-21apt-config23:45:012
30123992118,2cyclictest24198-21tr19:55:132
30123992118,2cyclictest20723-21grep23:35:182
30123992118,2cyclictest19981-21sed21:40:182
30123992118,2cyclictest17483-21pzem_power21:35:202
30123992118,2cyclictest13219-21apt-get21:30:132
30123992118,2cyclictest0-21swapper/222:50:202
30123992118,2cyclictest0-21swapper/220:55:182
30123992118,2cyclictest0-21swapper/219:50:012
30123992117,3cyclictest8051-21seq20:24:112
30123992116,4cyclictest0-21swapper/223:10:122
3011899214,2cyclictest608-21fschecks_time20:10:151
3011899210,6cyclictest426-21systemd-udevd21:36:521
3012399204,2cyclictest17329-21apt-get20:40:132
3012399203,3cyclictest0-21swapper/200:05:002
3012399203,16cyclictest3810-21if_lxdbr023:05:152
3012399203,16cyclictest29836-21sed23:50:202
3012399203,16cyclictest11683-21ntp_states00:15:192
3012399203,16cyclictest0-21swapper/219:40:122
3012399203,16cyclictest0-21swapper/200:35:142
3012399202,3cyclictest0-21swapper/220:30:192
3012399202,17cyclictest0-21swapper/219:20:162
3012399202,17cyclictest0-21swapper/219:20:162
30123992017,2cyclictest9253-21hddtemp_smartct20:25:152
30123992017,2cyclictest26131-21expr23:45:122
30123992017,2cyclictest189872chrt23:33:062
30123992017,2cyclictest13645-21cut00:20:142
30123992017,2cyclictest0-21swapper/222:40:172
30123992017,2cyclictest0-21swapper/221:15:152
30123992016,3cyclictest3976-21H222:10:212
30123992016,3cyclictest0-21swapper/221:25:182
30118992011,5cyclictest0-21swapper/120:05:211
3011899200,5cyclictest0-21swapper/100:22:111
3011199202,17cyclictest0-21swapper/000:00:190
3012399192,2cyclictest0-21swapper/223:25:122
30123991916,2cyclictest0-21swapper/219:50:172
3011899193,15cyclictest0-21swapper/121:40:141
3011899192,2cyclictest15531-21tr22:30:141
30118991917,1cyclictest0-21swapper/121:20:391
30118991916,2cyclictest12485-21nfsd420:30:171
30118991911,4cyclictest0-21swapper/121:00:291
3011899190,18cyclictest0-21swapper/120:59:071
3011899190,16cyclictest3983-21H222:10:211
3011199192,16cyclictest0-21swapper/023:22:360
3011199190,16cyclictest3985-21H222:10:210
3012399182,15cyclictest8930-21expr23:15:132
3012399181,17cyclictest0-21swapper/221:05:152
3012399180,2cyclictest20361-21sessionclean22:39:002
30118991816,1cyclictest3983-21H222:10:211
30118991816,1cyclictest0-21swapper/123:46:081
30118991814,3cyclictest3991-21H222:10:211
3011899181,3cyclictest0-21swapper/120:23:431
3011899181,1cyclictest0-21swapper/119:37:151
3011899181,16cyclictest23249-21latency_hist22:45:001
3011899180,3cyclictest14979-21dpkg22:30:021
3011899180,2cyclictest4099-21H222:10:211
3011899180,2cyclictest4099-21H222:10:211
3011899180,2cyclictest3991-21H222:10:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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