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2026-08-14 - 09:57
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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 Fri Aug 14, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1479099310,30cyclictest0-21swapper/120:55:151
14785992828,0cyclictest0-21swapper/020:40:210
14790992715,7cyclictest15680-21sessionclean20:09:011
1479099244,2cyclictest19231-21sh22:09:011
1479099242,2cyclictest11337-21chrt23:49:061
1478599246,15cyclictest0-21swapper/021:47:250
1478599240,24cyclictest0-21swapper/000:30:160
1479599230,20cyclictest0-21swapper/223:06:172
14790992314,8cyclictest10966-21sort21:55:011
1479099230,2cyclictest20808-21sed22:10:171
1479099230,2cyclictest150092expr23:55:111
1478599230,22cyclictest843-21systemd-network19:56:420
1479099222,19cyclictest23980-21taskset20:24:491
14790992214,7cyclictest30110-21threads22:25:221
1479099221,20cyclictest17343-21missed_timers20:10:181
1479099221,16cyclictest0-21swapper/121:40:001
1479099220,3cyclictest23385-21sshd23:12:031
1479099220,2cyclictest17579-21munin-plugin-st19:15:011
1479099220,21cyclictest8532-21memory22:45:181
1479099220,21cyclictest0-21swapper/121:04:461
1479099220,21cyclictest0-21swapper/100:20:001
1479099220,1cyclictest0-21swapper/123:20:141
1479099220,1cyclictest0-21swapper/121:45:171
1479099220,16cyclictest32256-21gpgv23:30:011
1479099220,16cyclictest24784-21expr20:25:131
1479099220,16cyclictest1522-21lxd23:52:361
1479099220,16cyclictest14331-21ntp_offset22:55:181
1478599220,3cyclictest0-21swapper/022:27:140
1479599214,11cyclictest0-21swapper/222:47:322
14790992115,5cyclictest0-21swapper/119:40:141
14790992114,6cyclictest645-21cat23:30:131
14790992114,6cyclictest5397-21cstates00:35:141
14790992114,6cyclictest5340-21df22:40:151
14790992114,6cyclictest11489-21expr22:50:181
1479099210,2cyclictest29900-21dpkg20:35:021
1479099210,2cyclictest20060-21perf00:05:011
1479099210,2cyclictest15724-21egrep21:05:151
1479099210,20cyclictest4988-21missed_timers20:45:191
1479099210,20cyclictest29344-21expr00:20:141
1479099210,20cyclictest14107-21egrep22:00:131
1479099210,20cyclictest0-21swapper/123:37:581
1479099210,20cyclictest0-21swapper/122:25:001
1479099210,20cyclictest0-21swapper/121:31:181
1479099210,1cyclictest92922chrt20:54:131
1479099210,1cyclictest3719-21ntp_states19:45:191
1479099210,1cyclictest179492chrt23:04:191
1479099210,1cyclictest0-21swapper/123:15:141
1479099210,1cyclictest0-21swapper/123:05:211
1479099210,1cyclictest0-21swapper/100:10:121
1479099210,16cyclictest29092-21wc21:30:011
1479099210,16cyclictest10086-21postgres19:59:281
14785992113,4cyclictest0-21swapper/021:16:270
1478599210,5cyclictest0-21swapper/019:45:010
1479599204,15cyclictest0-21swapper/223:49:502
14795992011,5cyclictest0-21swapper/220:15:142
1479599200,19cyclictest843-21systemd-network20:43:372
14790992018,1cyclictest0-21swapper/121:21:561
14790992014,6cyclictest0-21swapper/120:40:181
14790992014,5cyclictest4035-21H222:10:211
14790992014,5cyclictest0-21swapper/122:39:361
14790992013,6cyclictest21261-21fschecks_time00:05:181
14790992012,5cyclictest0-21swapper/119:50:331
1479099200,1cyclictest22751-21apt-config22:15:011
1479099200,1cyclictest0-21swapper/122:30:211
1479099200,1cyclictest0-21swapper/121:10:151
1479099200,1cyclictest0-21swapper/119:33:131
1479099200,19cyclictest21414-21tr21:15:141
1479099200,19cyclictest0-21swapper/121:57:011
1479099200,19cyclictest0-21swapper/121:40:151
1479099200,19cyclictest0-21swapper/120:38:031
1479099200,19cyclictest0-21swapper/120:15:151
1479099200,19cyclictest0-21swapper/100:33:101
1479099200,19cyclictest0-21swapper/100:26:051
14785992017,2cyclictest7219-21date22:45:010
14785992017,2cyclictest17524-21cat23:00:200
14785992015,3cyclictest0-21swapper/000:30:010
1479599193,15cyclictest0-21swapper/221:56:412
1479599191,16cyclictest9794-21needreboot21:50:212
1479599190,16cyclictest4035-21H222:10:212
1479599190,16cyclictest17427-21df_inode22:05:152
14790991914,4cyclictest0-21swapper/123:40:141
14790991914,4cyclictest0-21swapper/119:20:181
14790991912,6cyclictest23300-21apt-get19:25:131
1479099190,18cyclictest0-21swapper/119:35:141
1479099190,18cyclictest0-21swapper/119:35:141
1478599193,1cyclictest0-21swapper/022:15:010
1478599193,15cyclictest0-21swapper/023:30:010
1478599192,2cyclictest15322-21nfsd422:00:170
14785991917,1cyclictest0-21swapper/022:32:190
14785991916,2cyclictest12179-21chrt20:00:220
14785991916,2cyclictest0-21swapper/019:35:180
14785991916,2cyclictest0-21swapper/019:35:180
14785991915,3cyclictest0-21swapper/022:05:360
14785991915,1cyclictest0-21swapper/000:15:150
14785991914,4cyclictest0-21swapper/023:18:320
1478599190,1cyclictest0-21swapper/023:24:410
1479599183,15cyclictest21828-21cut19:20:202
1479599182,2cyclictest28737-21expr22:25:142
14795991816,1cyclictest0-21swapper/220:25:192
14795991815,2cyclictest31347-21expr22:30:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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