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2026-05-14 - 13:15
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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 highest latencies:
System rackdslot0.osadl.org (updated Thu May 14, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2113199262,23cyclictest0-21swapper/223:37:392
2113199262,23cyclictest0-21swapper/220:30:552
21131992517,6cyclictest14230-21sessionclean00:39:012
2113199244,19cyclictest0-21swapper/221:10:582
2113199243,20cyclictest22781-21date23:00:012
2113199242,21cyclictest18888-21cat21:55:132
2113199232,20cyclictest0-21swapper/200:15:122
2113199222,19cyclictest28-21ksoftirqd/220:05:152
2113199222,19cyclictest281362chrt20:16:332
21131992214,7cyclictest3716-21chrt21:29:212
21131992214,7cyclictest12896-21expr21:45:142
2113199220,7cyclictest25065-21cut19:15:152
2113199220,3cyclictest8667-21sed22:35:002
2113199220,2cyclictest25289-21apt-get20:15:012
2113199220,21cyclictest8735-21cut23:30:172
2113199220,21cyclictest28674-21fschecks_count21:15:162
2113199220,21cyclictest26318-21cat00:05:012
2113199220,21cyclictest0-21swapper/223:05:122
2113199220,1cyclictest0-21swapper/222:35:182
2113199220,1cyclictest0-21swapper/221:35:202
2113199220,1cyclictest0-21swapper/219:35:212
2113199220,1cyclictest0-21swapper/200:08:432
2113199220,16cyclictest4725-21awk22:25:182
2113199220,16cyclictest23111-21expr23:00:132
2112599220,6cyclictest0-21swapper/100:25:161
21131992116,4cyclictest0-21swapper/219:45:152
21131992114,6cyclictest30849-21fschecks_time00:10:152
21131992113,7cyclictest5493-21sed00:20:212
2113199210,2cyclictest475-21cat23:15:212
2113199210,2cyclictest30355-21cut19:25:162
2113199210,2cyclictest30252-21ntpq20:20:172
2113199210,20cyclictest24053-21apt-key22:05:012
2113199210,20cyclictest20892chrt19:31:392
2113199210,20cyclictest0-21swapper/223:55:212
2113199210,20cyclictest0-21swapper/221:20:162
2113199210,20cyclictest0-21swapper/219:55:172
2113199210,1cyclictest0-21swapper/223:50:182
2113199210,1cyclictest0-21swapper/223:45:142
2113199210,1cyclictest0-21swapper/223:40:182
2113199210,1cyclictest0-21swapper/223:25:132
2113199210,1cyclictest0-21swapper/222:00:202
2113199210,1cyclictest0-21swapper/221:30:162
2113199210,1cyclictest0-21swapper/221:05:012
2113199210,1cyclictest0-21swapper/220:55:122
2113199210,1cyclictest0-21swapper/220:55:012
2113199210,1cyclictest0-21swapper/220:40:012
2113199210,1cyclictest0-21swapper/219:10:202
2113199210,16cyclictest30394-21expr22:15:142
2113199210,16cyclictest19937-21cat22:55:012
2113199210,16cyclictest1984-21expr23:20:142
2113199210,15cyclictest11357-21expr20:45:152
2112599212,5cyclictest0-21swapper/123:19:531
21125992117,3cyclictest0-21swapper/123:45:481
21125992117,3cyclictest0-21swapper/100:30:401
2112599210,3cyclictest0-21swapper/121:30:201
21131992015,4cyclictest0-21swapper/223:10:142
21131992014,5cyclictest0-21swapper/222:40:202
21131992014,5cyclictest0-21swapper/220:40:082
21131992014,5cyclictest0-21swapper/219:50:152
2113199200,2cyclictest17285-21cat20:00:152
2113199200,2cyclictest10094-21sed00:30:162
2113199200,1cyclictest0-21swapper/222:45:132
2113199200,1cyclictest0-21swapper/222:20:132
2113199200,1cyclictest0-21swapper/221:40:162
2113199200,1cyclictest0-21swapper/221:40:152
2113199200,1cyclictest0-21swapper/220:25:222
2113199200,1cyclictest0-21swapper/219:21:032
2113199200,1cyclictest0-21swapper/200:29:182
2113199200,16cyclictest28583-21grep22:10:172
2111999204,15cyclictest0-21swapper/023:20:560
2111999200,5cyclictest0-21swapper/019:32:460
2113199190,1cyclictest0-21swapper/219:40:152
2113199190,18cyclictest0-21swapper/221:50:132
2113199190,18cyclictest0-21swapper/221:05:122
2112599192,2cyclictest4025-21changes_open22:10:211
2112599192,16cyclictest18518-21nfsd422:50:151
2112599192,16cyclictest0-21swapper/119:24:451
21125991917,1cyclictest0-21swapper/121:50:231
21125991917,1cyclictest0-21swapper/121:35:321
2112599190,3cyclictest0-21swapper/123:12:161
2112599190,2cyclictest27485-21dpkg21:15:011
21119991915,3cyclictest0-21swapper/019:20:370
21119991915,1cyclictest0-21swapper/021:45:570
21125991816,1cyclictest21-21ksoftirqd/123:01:261
21125991815,2cyclictest13841-21smtp00:35:451
21125991814,3cyclictest1351-21lxd22:38:491
21125991813,4cyclictest7507-21cpuspeed_turbos23:30:121
2112599180,3cyclictest27381-21grep22:10:131
2112599180,3cyclictest23339-21awk21:05:171
2112599180,1cyclictest0-21swapper/119:40:131
2112599180,17cyclictest29280-21apt-get00:10:011
2112599180,16cyclictest3989-21H222:10:211
2111999182,2cyclictest26032-21seq00:02:000
21119991816,1cyclictest0-21swapper/023:57:390
21119991815,2cyclictest24905-21idleruntime19:15:150
21119991814,3cyclictest3981-21H222:10:210
21119991814,3cyclictest30366-21grep21:20:010
21119991814,3cyclictest1525-21lxd21:42:500
21119991814,3cyclictest1525-21lxd21:42:490
21119991814,3cyclictest1057-21cron22:35:010
2111999181,2cyclictest9945-21nfsd419:45:190
21125991715,1cyclictest4706-21nfsd422:25:181
21125991715,1cyclictest21-21ksoftirqd/120:34:191
21125991714,2cyclictest3983-21H222:10:211
21125991714,2cyclictest3976-21H222:10:211
21125991714,2cyclictest32749-21apache_processe22:20:111
21125991714,2cyclictest23647-21python322:05:011
2112599171,1cyclictest109652chrt19:49:171
2112599171,15cyclictest14071-21missed_timers23:40:161
2112599170,2cyclictest9235-21awk20:40:181
2112599170,2cyclictest4056-21sshd23:22:311
2112599170,2cyclictest3991-21H222:10:211
2112599170,2cyclictest3989-21H222:10:211
2112599170,2cyclictest3981-21H222:10:211
2112599170,2cyclictest3976-21H222:10:211
2112599170,2cyclictest30439-21cstates00:10:151
2112599170,2cyclictest15033-21latency_hist21:50:001
2112599170,1cyclictest0-21swapper/100:01:451
2112599170,16cyclictest4453-21awk19:35:171
2112599170,16cyclictest4035-21H222:10:211
2112599170,16cyclictest399-20systemd-journal19:30:011
2112599170,16cyclictest3989-21H222:10:211
2112599170,16cyclictest3976-21H222:10:211
2112599170,16cyclictest32499-21tr19:30:141
2112599170,16cyclictest28440-21perf20:20:011
2112599170,16cyclictest23727-21munin-plugin-st00:00:001
2112599170,16cyclictest23107-21expr20:10:121
2112599170,16cyclictest22048-21tune2fs19:10:151
2112599170,16cyclictest20363-21fschecks_time20:05:141
21119991715,1cyclictest6178-21cpuspeed_turbos19:40:130
21119991715,1cyclictest0-21swapper/020:20:210
21119991714,2cyclictest6223-21chrt21:30:310
21119991714,2cyclictest4200-21timerwakeupswit20:30:190
21119991714,2cyclictest3351-21lxd23:40:350
21119991714,2cyclictest32056-21grep21:20:180
21119991714,2cyclictest25532-21latency_hist23:05:010
21119991714,2cyclictest17919-21cat20:00:170
21119991714,2cyclictest16020-21cat23:45:130
21119991714,2cyclictest1205-21fschecks_count00:15:130
2111999171,15cyclictest19361-21cpuspeed_turbos21:00:140
2111999170,2cyclictest6975-21cron23:30:000
2111999170,2cyclictest5826-21cut19:40:010
2111999170,2cyclictest5601-21lxd20:38:490
2111999170,2cyclictest3989-21H222:10:210
2111999170,2cyclictest29975-21expr19:25:130
2111999170,2cyclictest29923-21sh00:10:010
2111999170,2cyclictest26459-21pzem_voltage21:10:220
2111999170,2cyclictest22489-21gpgconf20:10:020
2111999170,2cyclictest1908-21latency_hist20:30:010
2111999170,2cyclictest14560-21/usr/sbin/munin22:45:220
2111999170,2cyclictest12835-21cat23:40:010
2111999170,2cyclictest12759-21/usr/sbin/munin00:35:150
2111999170,16cyclictest3991-21H222:10:210
2111999170,16cyclictest31715-21expr23:15:140
2111999170,16cyclictest30761-21ls23:15:000
2111999170,16cyclictest25717-21cut23:05:120
2111999170,16cyclictest23233-21cat20:10:130
2111999170,16cyclictest18969-21expr23:50:140
2111999170,16cyclictest18084-21apache_accesses21:55:100
2111999170,16cyclictest16592-21cat20:00:010
2111999170,16cyclictest0-21swapper/022:10:120
2111999170,15cyclictest12084-21tr22:40:120
21125991614,1cyclictest82182sleep122:31:111
21125991614,1cyclictest320922sleep122:17:171
21125991614,1cyclictest0-21swapper/121:55:121
21125991614,1cyclictest0-21swapper/121:40:131
21125991614,1cyclictest0-21swapper/121:40:131
21125991614,1cyclictest0-21swapper/121:05:011
21125991614,1cyclictest0-21swapper/120:55:151
21125991614,1cyclictest0-21swapper/120:25:171
21125991613,2cyclictest14590-21dpkg22:45:121
21125991613,2cyclictest0-21swapper/120:20:141
2112599160,2cyclictest32409-21grep21:20:221
2112599160,2cyclictest12294-21nfsd420:45:181
2112599160,2cyclictest1100-21snmpd21:25:111
2112599160,1cyclictest0-21swapper/121:15:131
2112599160,15cyclictest22618-21ntp_kernel_pll_22:00:171
2112599160,15cyclictest0-21swapper/123:50:141
2112599160,15cyclictest0-21swapper/120:50:131
21119991614,1cyclictest7492-21cpuspeed_turbos23:30:120
21119991614,1cyclictest0-21swapper/020:55:190
21119991614,1cyclictest0-21swapper/020:50:120
21119991614,1cyclictest0-21swapper/020:40:160
21119991614,1cyclictest0-21swapper/019:10:140
21119991614,1cyclictest0-21swapper/000:20:100
21119991613,2cyclictest30668-21tune2fs22:15:150
21119991613,2cyclictest16559-21nfsd421:50:160
21119991613,2cyclictest1300-21lxd21:36:500
21119991613,2cyclictest1172-21apache_processe21:25:110
2111999161,1cyclictest0-21swapper/000:08:130
2111999160,15cyclictest25874-21apt-config20:15:010
2111999160,15cyclictest25767-21ntpq22:05:170
2111999160,15cyclictest22126-21cpuspeed_turbos21:05:120
2111999160,15cyclictest0-21swapper/022:50:120
2111999160,15cyclictest0-21swapper/022:35:140
2111999160,15cyclictest0-21swapper/022:25:110
2111999160,15cyclictest0-21swapper/022:20:120
2111999160,15cyclictest0-21swapper/020:45:010
2111999160,15cyclictest0-21swapper/019:50:140
2111999160,15cyclictest0-21swapper/000:25:210
2112599150,14cyclictest0-21swapper/119:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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