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2026-08-23 - 10:42
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Sun Aug 23, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29083992725,1cyclictest0-21swapper/100:40:001
29082992419,4cyclictest4100-21H222:10:210
2908499230,8cyclictest0-21swapper/221:35:192
2908399230,6cyclictest0-21swapper/119:58:561
29082992119,1cyclictest9-21ksoftirqd/023:35:520
2908499202,3cyclictest0-21swapper/221:43:562
29084992020,0cyclictest0-21swapper/221:30:172
2908499200,19cyclictest14501-21snapd19:35:282
2908399204,15cyclictest0-21swapper/100:25:131
2908399203,16cyclictest0-21swapper/122:15:271
2908399203,11cyclictest5261-21http21:20:001
2908399202,17cyclictest0-21swapper/121:41:161
29083992017,2cyclictest21-21ksoftirqd/123:05:181
2908399200,17cyclictest624-21basename00:05:001
2908299203,2cyclictest14329-21expr21:35:140
2908299200,17cyclictest4035-21H222:10:210
2908499193,15cyclictest8702-21apt23:20:132
2908499193,15cyclictest0-21swapper/220:22:442
2908499192,2cyclictest32168-21cpu19:15:142
29084991915,2cyclictest14000-21smartctl22:30:192
2908499191,3cyclictest13152-21turbostat00:24:592
29084991913,3cyclictest0-21swapper/222:25:152
2908499190,18cyclictest0-21swapper/200:00:002
2908399193,15cyclictest25621-21expr20:00:141
2908399192,2cyclictest4032-21accounts22:10:211
29083991917,1cyclictest246442chrt21:52:161
29083991917,1cyclictest12765-21switchtime19:35:231
29083991916,2cyclictest18386-21cat20:45:161
2908399191,17cyclictest0-21swapper/122:25:221
2908399191,16cyclictest27095-21grep21:00:171
2908399190,4cyclictest12824-21smartctl23:25:191
2908399190,2cyclictest3981-21H222:10:211
2908399190,18cyclictest7060-21python300:12:511
2908399190,18cyclictest21146-21grep19:50:191
2908399190,18cyclictest0-21swapper/100:20:131
2908399190,17cyclictest0-21swapper/119:15:551
2908399190,16cyclictest4099-21H222:10:211
2908399190,16cyclictest3989-21H222:10:211
2908399190,16cyclictest3983-21H222:10:211
2908399190,16cyclictest3979-21H222:10:211
2908399190,16cyclictest3979-21H222:10:211
2908299191,2cyclictest0-21swapper/020:35:180
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3989-21H222:10:210
2908299190,16cyclictest3976-21H222:10:210
29084991818,0cyclictest0-21swapper/221:55:142
29084991816,1cyclictest12171-21latency_hist20:35:002
29084991815,2cyclictest3985-21H222:10:212
29084991815,2cyclictest23131-21expr21:50:142
29084991815,2cyclictest22380-21cat22:45:172
29084991815,2cyclictest20982-21apt-config22:45:002
29084991815,2cyclictest1073-21grep21:10:192
29084991814,3cyclictest9831-21cat20:30:002
29084991814,3cyclictest3991-21H222:10:212
2908499181,2cyclictest31088-21processes23:00:192
2908499181,2cyclictest22095-21chrt21:49:372
2908499181,16cyclictest24351-21grep20:55:162
2908499181,16cyclictest18689-21chrt00:30:512
2908499180,2cyclictest3989-21H222:10:212
2908499180,2cyclictest3976-21H222:10:212
2908499180,17cyclictest5787-21rm21:20:002
2908499180,17cyclictest15497-21/usr/sbin/munin20:40:232
2908499180,16cyclictest4099-21H222:10:212
2908499180,16cyclictest3985-21H222:10:212
2908499180,16cyclictest3981-21H222:10:212
2908499180,15cyclictest3979-21H222:10:212
2908399183,1cyclictest21-21ksoftirqd/122:10:571
2908399182,1cyclictest0-21swapper/120:40:291
2908399182,15cyclictest3982-21H222:10:211
2908399182,15cyclictest29440-21cpuspeed_turbos21:05:141
2908399182,15cyclictest0-21swapper/123:05:001
29083991816,1cyclictest0-21swapper/120:10:251
29083991816,1cyclictest0-21swapper/120:10:251
29083991815,2cyclictest3987-21H222:10:211
29083991814,3cyclictest3976-21H222:10:211
29083991814,2cyclictest0-21swapper/122:20:171
29083991814,2cyclictest0-21swapper/122:20:171
2908399181,1cyclictest0-21swapper/121:46:591
2908399181,1cyclictest0-21swapper/120:21:081
2908399180,17cyclictest863-21avahi-daemon20:15:211
2908399180,17cyclictest28056-21grep20:05:141
2908399180,15cyclictest0-21swapper/100:34:071
2908299182,15cyclictest18454-21cpuspeed_turbos22:40:170
29082991814,3cyclictest4099-21H222:10:210
29082991814,3cyclictest3976-21H222:10:210
29082991814,3cyclictest3976-21H222:10:210
29082991814,3cyclictest30053-21sshd22:01:140
2908299181,15cyclictest0-21swapper/000:27:510
2908299180,2cyclictest4099-21H222:10:210
2908299180,2cyclictest3991-21H222:10:210
2908299180,2cyclictest3991-21H222:10:210
2908299180,2cyclictest3981-21H222:10:210
2908299180,17cyclictest3985-21H222:10:210
2908299180,17cyclictest3985-21H222:10:210
2908299180,17cyclictest3983-21H222:10:210
2908299180,17cyclictest10474-21cut00:20:000
2908299180,15cyclictest3989-21H222:10:210
2908299180,15cyclictest3979-21H222:10:210
2908299180,15cyclictest0-21swapper/000:20:140
29084991715,1cyclictest17217-21expr19:45:142
29084991715,1cyclictest0-21swapper/200:15:132
29084991714,2cyclictest9190-21cstates21:25:132
29084991714,2cyclictest642-21sed22:09:002
29084991714,2cyclictest5107-21chrt21:19:262
29084991714,2cyclictest4394-21ps19:20:192
29084991714,2cyclictest30699-21chrt00:00:072
29084991714,2cyclictest29575-21cat21:05:152
29084991714,2cyclictest27628-21cat21:00:192
29084991714,2cyclictest22569-21apache_volume19:55:112
29084991714,2cyclictest20107-21cstates19:50:152
29084991714,2cyclictest19959-21cat00:35:142
29084991714,2cyclictest15535-21cpuspeed_turbos22:35:142
29084991713,3cyclictest0-21swapper/219:25:082
2908499171,1cyclictest0-21swapper/219:10:152
2908499170,2cyclictest3985-21H222:10:212
2908499170,2cyclictest3979-21H222:10:212
2908499170,2cyclictest3979-21H222:10:212
2908499170,2cyclictest3979-21H222:10:212
2908499170,2cyclictest3979-21H222:10:212
2908499170,2cyclictest29265-21nfsd420:05:202
2908499170,1cyclictest0-21swapper/220:00:142
2908499170,16cyclictest8752-21cstates19:30:142
2908499170,16cyclictest3991-21H222:10:212
2908499170,16cyclictest3989-21H222:10:212
2908499170,16cyclictest3981-21H222:10:212
2908499170,16cyclictest24486-21cstates22:50:152
2908499170,16cyclictest21314-21cstates20:50:132
2908499170,16cyclictest19397-21ls20:45:192
2908499170,16cyclictest1872-21cat20:15:142
2908499170,16cyclictest17312-21expr23:35:142
2908499170,16cyclictest0-21swapper/222:10:162
2908499170,16cyclictest0-21swapper/220:35:162
2908499170,15cyclictest4099-21H222:10:212
2908499170,15cyclictest3985-21H222:10:212
29083991715,1cyclictest30850-21ps19:10:201
29083991715,1cyclictest307502sleep122:05:051
29083991714,2cyclictest8924-21cpuspeed_turbos21:25:121
29083991714,2cyclictest8009-21/usr/sbin/munin20:25:181
29083991714,2cyclictest17921-21grep19:45:171
29083991714,2cyclictest14277-21expr19:40:131
29083991714,2cyclictest10439-21expr20:30:131
2908399170,2cyclictest8956-21fschecks_count19:30:141
2908399170,2cyclictest4035-21H222:10:211
2908399170,2cyclictest3989-21H222:10:211
2908399170,2cyclictest3168-21cat19:20:131
2908399170,2cyclictest28284-21cat22:00:131
2908399170,2cyclictest25499-21cstates23:50:131
2908399170,16cyclictest6493-21cstates21:20:161
2908399170,16cyclictest6119-21expr19:25:141
2908399170,16cyclictest3983-21H222:10:211
2908399170,16cyclictest3981-21H222:10:211
2908399170,16cyclictest27961-21apache_volume23:55:101
2908399170,16cyclictest25305-21systemctl20:55:211
2908399170,16cyclictest24404-21cstates22:50:151
2908399170,16cyclictest12896-21cat20:35:141
2908399170,16cyclictest12845-21ntpq21:30:191
2908399170,16cyclictest1111-21ntpq21:10:191
2908399170,16cyclictest0-21swapper/123:45:051
2908399170,15cyclictest3991-21H222:10:211
29082991714,2cyclictest5592-21/usr/sbin/munin19:25:190
29082991714,2cyclictest4227-21ntpq21:15:180
29082991714,2cyclictest3976-21H222:10:210
29082991714,2cyclictest3976-21H222:10:210
29082991714,2cyclictest22804-21cpuspeed_turbos19:55:130
29082991714,2cyclictest1521-21lxd21:06:500
2908299170,2cyclictest4099-21H222:10:210
2908299170,2cyclictest3989-21H222:10:210
2908299170,2cyclictest3985-21H222:10:210
2908299170,2cyclictest24937-21/usr/sbin/munin22:50:160
2908299170,2cyclictest0-21swapper/019:20:150
2908299170,16cyclictest4099-21H222:10:210
2908299170,16cyclictest4035-21H222:10:210
2908299170,16cyclictest4035-21H222:10:210
2908299170,16cyclictest3989-21H222:10:210
2908299170,16cyclictest3983-21H222:10:210
2908299170,16cyclictest3981-21H222:10:210
2908299170,16cyclictest3979-21H222:10:210
2908299170,16cyclictest27994-21/usr/sbin/munin21:00:210
2908299170,16cyclictest11733-21grep19:35:160
2908299170,16cyclictest10151-21lxd21:12:490
2908299170,15cyclictest0-21swapper/020:40:160
2908499160,15cyclictest0-21swapper/219:40:122
29082991614,1cyclictest0-21swapper/021:20:170
29082991614,1cyclictest0-21swapper/020:51:550
29082991614,1cyclictest0-21swapper/020:15:220
29082991614,1cyclictest0-21swapper/020:10:160
29082991614,1cyclictest0-21swapper/020:10:160
29082991614,1cyclictest0-21swapper/020:05:190
29082991614,1cyclictest0-21swapper/019:45:170
29082991613,2cyclictest30132-21http_loadtime19:10:160
2908299160,2cyclictest10458-21df_inode20:30:150
2908299160,1cyclictest4099-21H222:10:210
2908299160,1cyclictest0-21swapper/020:20:170
2908299160,1cyclictest0-21swapper/019:50:160
2908299160,15cyclictest8548-21ntpq20:25:190
2908299160,15cyclictest20284-21expr23:40:140
2908299160,15cyclictest15385-21nvmesmart_nvme019:40:200
2908299160,15cyclictest10247-21/usr/sbin/munin21:25:200
2908299160,15cyclictest0-21swapper/020:45:190
2908299160,15cyclictest0-21swapper/020:00:190
2908299160,15cyclictest0-21swapper/019:30:130
2908299150,1cyclictest0-21swapper/020:55:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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