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2026-08-01 - 17:59
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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 Sat Aug 01, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1446699350,34cyclictest0-21swapper/111:49:021
14467992624,2cyclictest0-21swapper/212:22:242
1446799247,16cyclictest3789-21sort10:35:212
1446699240,23cyclictest0-21swapper/108:51:591
14466992320,2cyclictest19792-21grep09:10:151
1446699230,5cyclictest0-21swapper/107:36:021
1446599230,5cyclictest0-21swapper/007:30:150
1446599226,2cyclictest6690-21grep10:40:150
1446599220,4cyclictest0-21swapper/011:43:410
1446699204,15cyclictest21-21ksoftirqd/108:45:011
1446699202,1cyclictest0-21swapper/111:40:461
1446699200,19cyclictest0-21swapper/111:05:151
1446699200,16cyclictest0-21swapper/111:50:151
14465992014,5cyclictest0-21swapper/011:40:000
14467991917,1cyclictest0-21swapper/209:55:182
14467991917,1cyclictest0-21swapper/208:35:202
14467991914,3cyclictest0-21swapper/209:03:572
1446799190,4cyclictest399-20systemd-journal11:40:012
1446699192,16cyclictest0-21swapper/109:51:461
1446699192,16cyclictest0-21swapper/108:49:541
14466991914,3cyclictest0-21swapper/111:13:071
1446699190,18cyclictest870-21systemd-logind08:13:521
1446599192,2cyclictest22065-21expr09:15:140
1446599192,16cyclictest2956-21expr10:35:170
1446599192,16cyclictest1616-21fschecks_time12:25:160
1446599192,15cyclictest0-21swapper/009:42:080
14465991916,2cyclictest2114-21expr11:30:140
14465991915,3cyclictest0-21swapper/012:35:170
14465991915,3cyclictest0-21swapper/011:48:140
14465991914,1cyclictest0-21swapper/008:45:010
1446599191,2cyclictest13191-21cpuspeed_turbos11:50:130
1446599190,1cyclictest0-21swapper/009:50:140
14467991816,1cyclictest0-21swapper/209:35:182
14467991815,2cyclictest7921-21nfsd412:35:182
14467991815,2cyclictest11016-21fschecks_time11:45:172
1446799181,16cyclictest29986-21pluginstate09:30:012
1446799181,16cyclictest16561-21cat11:55:152
1446799181,16cyclictest0-21swapper/210:53:532
1446799180,3cyclictest399-20systemd-journal08:41:222
1446799180,2cyclictest20083-21cat11:05:012
1446799180,17cyclictest3145-21apache208:25:002
1446799180,17cyclictest27406-21sort07:30:232
1446799180,17cyclictest23496-21tr10:15:132
1446799180,17cyclictest14496-21snapd10:42:582
1446799180,17cyclictest13250-21tr11:50:132
1446799180,17cyclictest0-21swapper/209:13:182
1446699182,1cyclictest0-21swapper/111:00:131
14466991816,1cyclictest0-21swapper/110:50:231
14466991815,2cyclictest8547-21munin-run10:45:011
14466991815,2cyclictest30324-21latency10:25:181
1446699181,1cyclictest0-21swapper/109:00:011
1446699180,4cyclictest20255-21latency_hist10:10:001
1446699180,3cyclictest20874-21cut10:10:151
1446699180,3cyclictest15867-21awk09:05:011
1446699180,3cyclictest13377-21dpkg08:05:011
1446699180,2cyclictest29429-21kernelversion11:20:171
1446699180,17cyclictest29688-21python312:20:001
1446699180,17cyclictest21287-21awk12:05:011
1446699180,16cyclictest0-21swapper/108:35:151
1446599182,2cyclictest9022-21chrt09:48:270
1446599182,15cyclictest7760-21cpuspeed_turbos08:50:130
1446599182,15cyclictest0-21swapper/007:55:130
14465991816,1cyclictest0-21swapper/010:05:140
14465991815,2cyclictest24114-21timerwakeupswit08:20:210
14465991814,2cyclictest4978-21cpuspeed_turbos08:45:130
14465991813,4cyclictest16995-21idleruntime09:05:150
1446599181,16cyclictest13225-21awk10:50:200
1446599180,2cyclictest17175-21munin-plugin-st11:00:000
1446599180,17cyclictest1351-21lxd09:02:440
1446599180,17cyclictest12982-21fschecks_time09:55:170
1446599180,17cyclictest0-21swapper/007:20:170
14467991716,1cyclictest20860-21tr10:10:152
14467991715,1cyclictest107922chrt10:46:052
14467991715,1cyclictest0-21swapper/211:25:162
14467991715,1cyclictest0-21swapper/211:25:002
14467991715,1cyclictest0-21swapper/209:45:172
14467991714,2cyclictest9729-21apt-get08:52:322
14467991714,2cyclictest8750-21needreboot11:40:182
14467991714,2cyclictest8720-21cat07:55:172
14467991714,2cyclictest4219-21cpuspeed_turbos09:40:142
14467991714,2cyclictest30673-21latency_hist08:35:012
14467991714,2cyclictest26198-21cstates11:15:142
14467991714,2cyclictest25864-21expr08:25:152
14467991714,2cyclictest20617-21expr07:20:132
14467991714,2cyclictest16415-21cpuspeed_turbos09:05:132
14467991714,2cyclictest10742-21/usr/sbin/munin08:55:132
14467991714,2cyclictest0-21swapper/208:15:192
1446799170,2cyclictest5823-21latency07:50:192
1446799170,2cyclictest4099-21H222:10:212
1446799170,2cyclictest3739-21latency_hist12:30:002
1446799170,2cyclictest23946-21ls07:25:162
1446799170,2cyclictest21658-21/usr/sbin/munin12:05:152
1446799170,2cyclictest20595-21cat11:05:152
1446799170,1cyclictest0-21swapper/211:30:152
1446799170,1cyclictest0-21swapper/207:35:152
1446799170,16cyclictest31143-21fschecks_time09:30:152
1446799170,16cyclictest28478-21apt-get10:25:032
1446799170,16cyclictest27694-21cstates12:15:142
1446799170,16cyclictest25204-21fschecks_count12:10:162
1446799170,16cyclictest24703-21cpuspeed_turbos09:20:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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