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2026-05-30 - 20:07
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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 Sat May 30, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20083992819,9cyclictest0-21swapper/109:25:121
20083992523,1cyclictest0-21swapper/112:12:511
20084992414,5cyclictest0-21swapper/209:40:172
2008299242,15cyclictest0-21swapper/007:19:060
2008299231,21cyclictest0-21swapper/011:15:160
2008299230,15cyclictest0-21swapper/009:35:140
2008399220,21cyclictest843-21systemd-network08:51:351
2008299222,1cyclictest5462sleep009:23:560
20082992214,2cyclictest12942-21apache_volume11:40:120
20082992214,2cyclictest0-21swapper/009:40:170
20082992214,1cyclictest0-21swapper/011:00:200
20082992214,1cyclictest0-21swapper/008:35:010
20082992214,1cyclictest0-21swapper/008:15:020
2008299220,2cyclictest4596-21expr11:25:130
2008299220,2cyclictest18848-21cat11:50:140
2008299220,2cyclictest17019-21nfsd411:45:160
2008299220,16cyclictest2301-21find10:25:110
2008299220,16cyclictest21536-21perf08:10:000
20082992114,2cyclictest9044-21awk07:45:170
20082992114,2cyclictest7201-21latency_hist08:40:010
20082992114,1cyclictest32726-21ntpq07:30:190
20082992114,1cyclictest28217-21expr08:20:130
20082992114,1cyclictest0-21swapper/012:15:210
20082992114,1cyclictest0-21swapper/010:40:160
20082992114,1cyclictest0-21swapper/010:00:120
20082992114,1cyclictest0-21swapper/009:00:120
20082992113,2cyclictest27590-21grep09:15:140
20082992113,2cyclictest2667-21pzem11:20:200
2008299210,2cyclictest7792-21expr08:40:130
2008299210,2cyclictest27943-21awk11:10:100
2008299210,2cyclictest10316-21cstates08:45:130
2008299210,1cyclictest7232-21gpgv11:30:010
2008299210,1cyclictest0-21swapper/012:35:210
2008299210,1cyclictest0-21swapper/012:30:120
2008299210,1cyclictest0-21swapper/012:10:130
2008299210,1cyclictest0-21swapper/009:33:540
2008299210,1cyclictest0-21swapper/007:15:000
2008299210,16cyclictest26422-21seq09:13:080
2008299210,15cyclictest7686-21perf10:35:000
2008299210,15cyclictest23533-21dpkg10:05:130
2008299210,15cyclictest0-21swapper/012:05:010
2008299210,15cyclictest0-21swapper/008:50:150
20084992018,1cyclictest0-21swapper/208:00:012
20082992014,2cyclictest31577-21hddtemp_smartct08:25:150
20082992014,1cyclictest0-21swapper/012:20:120
20082992014,1cyclictest0-21swapper/011:55:120
20082992014,1cyclictest0-21swapper/009:55:170
20082992014,1cyclictest0-21swapper/008:55:210
20082992014,1cyclictest0-21swapper/008:00:130
20082992014,1cyclictest0-21swapper/007:35:210
20082992013,2cyclictest30057-21/usr/sbin/munin07:25:190
20082992013,2cyclictest10833-21ls10:40:000
20082992013,1cyclictest0-21swapper/007:55:160
2008299200,2cyclictest18416-21mailstats10:50:230
2008299200,1cyclictest31012-21timerwakeupswit10:15:220
2008299200,1cyclictest0-21swapper/011:38:580
2008299200,1cyclictest0-21swapper/010:15:000
2008299200,1cyclictest0-21swapper/009:55:000
2008299200,1cyclictest0-21swapper/009:07:020
2008299200,16cyclictest27394-21pzem_power07:20:220
2008299200,16cyclictest27394-21pzem_power07:20:220
2008299200,15cyclictest3317-21postgres09:26:130
2008299200,15cyclictest23140-21nfsd408:10:190
2008299200,15cyclictest1137-21systemctl10:20:230
2008299200,15cyclictest0-21swapper/012:25:110
2008299200,15cyclictest0-21swapper/012:05:170
2008299200,15cyclictest0-21swapper/010:45:140
2008299200,15cyclictest0-21swapper/007:50:160
2008299200,15cyclictest0-21swapper/007:45:000
2008299200,14cyclictest0-21swapper/010:59:460
20084991917,1cyclictest0-21swapper/208:40:012
2008499191,17cyclictest3450-21gsd-color07:15:182
20083991914,3cyclictest0-21swapper/108:57:501
20082991914,1cyclictest0-21swapper/011:05:220
20082991912,6cyclictest0-21swapper/009:47:070
2008499182,1cyclictest6702-21timerandwakeup07:40:202
2008499182,15cyclictest7186-21timerwakeupswit10:30:182
2008499182,15cyclictest0-21swapper/209:00:162
20084991816,1cyclictest32726-21gdbus09:22:212
20084991816,1cyclictest177162chrt11:46:382
20084991815,2cyclictest14943-21awk09:50:002
2008499180,2cyclictest22106-21cut08:10:132
2008499180,17cyclictest23464-21munin-plugin-st12:00:002
2008499180,17cyclictest2007-21systemd-journal08:25:012
2008499180,17cyclictest1526-21lxd11:32:432
20083991816,1cyclictest26174-21timerwakeupswit09:10:231
20083991816,1cyclictest24563-21tune2fs12:00:131
20083991815,2cyclictest5022-21fschecks_count08:35:141
20083991815,2cyclictest32698-21cat10:20:191
2008399181,16cyclictest5604-21tr10:30:111
2008399180,17cyclictest870-21systemd-logind08:11:521
2008399180,17cyclictest27265-21tune2fs12:05:141
2008399180,17cyclictest1829-21systemd-journal10:55:001
2008399180,17cyclictest1575-21cpuspeed_turbos08:30:131
20084991715,1cyclictest6253-21latency_hist12:25:002
20084991715,1cyclictest31302-21/usr/sbin/munin07:30:132
20084991715,1cyclictest0-21swapper/212:10:212
20084991715,1cyclictest0-21swapper/209:35:082
20084991715,1cyclictest0-21swapper/207:35:202
20084991715,1cyclictest0-21swapper/207:10:162
20084991714,2cyclictest30658-21/usr/sbin/munin11:15:102
20084991714,2cyclictest27992-21ntpq12:05:192
20084991714,2cyclictest1788-21ps12:15:182
20084991714,2cyclictest14720-21df_inode10:45:132
20084991714,2cyclictest12527-21perf11:40:002
2008499171,15cyclictest0-21swapper/210:10:142
2008499170,2cyclictest3981-21H222:10:212
2008499170,2cyclictest32473-21df10:20:162
2008499170,2cyclictest28835-21ntp_kernel_err09:15:202
2008499170,2cyclictest21137-21cat10:00:122
2008499170,2cyclictest191332chrt10:54:482
2008499170,2cyclictest17229-21awk08:00:192
2008499170,2cyclictest1525-21lxd11:22:422
2008499170,2cyclictest14730-21timerandwakeup11:40:202
2008499170,2cyclictest12938-21apt-config08:50:012
2008499170,1cyclictest3979-21H222:10:212
2008499170,1cyclictest0-21swapper/209:30:202
2008499170,16cyclictest989-21gmain08:40:112
2008499170,16cyclictest9304-21nfsd410:35:192
2008499170,16cyclictest5698-21pzem_energy11:25:182
2008499170,16cyclictest29399-21if_enp1s007:25:172
2008499170,16cyclictest29135-21apache_volume10:15:142
2008499170,16cyclictest26212-21idleruntime-cro12:05:002
2008499170,16cyclictest24661-21munin-run11:05:002
2008499170,16cyclictest19792-21ntp_states11:50:202
2008499170,16cyclictest12423-21expr12:35:122
2008499170,16cyclictest12200-21netstat10:40:182
2008499170,16cyclictest1035-21thermald07:45:222
2008499170,16cyclictest0-21swapper/210:25:172
2008499170,16cyclictest0-21swapper/208:15:172
2008399172,1cyclictest0-21swapper/110:00:001
20083991716,1cyclictest0-21swapper/109:06:481
20083991714,2cyclictest9406-21grep12:30:131
20083991714,2cyclictest426-21systemd-udevd09:23:521
20083991714,2cyclictest399-20systemd-journal11:24:551
20083991714,2cyclictest3053-21systemd-logind11:31:511
20083991714,2cyclictest24813-21gpgv08:15:011
20083991714,2cyclictest24651-21pzem_voltage07:15:211
20083991714,2cyclictest24039-21expr10:05:141
20083991714,2cyclictest23912-21grep11:00:211
20083991714,2cyclictest23573-21cut12:00:011
20083991714,2cyclictest1965-21ls12:15:211
20083991714,2cyclictest16730-21nvmesmart_nvme009:50:191
20083991714,2cyclictest14499-21snapd10:45:501
20083991714,2cyclictest0-21swapper/109:30:181
20083991714,1cyclictest0-21swapper/108:25:011
2008399171,2cyclictest1269-21chrt07:34:571
2008399171,15cyclictest90042chrt09:36:461
2008399171,15cyclictest0-21swapper/107:35:121
2008399170,2cyclictest870-21systemd-logind10:11:511
2008399170,2cyclictest28039-21cpuspeed_turbos11:10:131
2008399170,2cyclictest20093-21cat10:55:141
2008399170,2cyclictest19043-21apache_accesses08:05:141
2008399170,2cyclictest17139-21nfsd408:00:181
2008399170,16cyclictest7675-21/usr/sbin/munin07:45:131
2008399170,16cyclictest7498-21cut08:40:131
2008399170,16cyclictest31034-21cat11:15:141
2008399170,16cyclictest1829-21systemd-journal12:20:111
2008399170,16cyclictest15676-21apache_accesses11:45:091
2008399170,16cyclictest13713-21sed09:45:181
2008399170,16cyclictest13434-21ps12:35:181
2008399170,16cyclictest13092-21cpuspeed_turbos11:40:121
2008399170,16cyclictest12358-21munin-run08:50:021
2008399170,16cyclictest10944-21irqstats11:35:181
20084991614,1cyclictest0-21swapper/212:25:192
20084991614,1cyclictest0-21swapper/209:25:132
20084991614,1cyclictest0-21swapper/209:10:152
20084991614,1cyclictest0-21swapper/209:05:132
20084991614,1cyclictest0-21swapper/208:55:152
20084991614,1cyclictest0-21swapper/208:25:162
20084991614,1cyclictest0-21swapper/208:05:002
20084991614,1cyclictest0-21swapper/207:50:192
2008499160,15cyclictest2813-21open_files08:30:192
2008499160,15cyclictest20563-21latency10:55:182
2008499160,15cyclictest0-21swapper/212:30:122
2008499160,15cyclictest0-21swapper/211:10:172
2008499160,15cyclictest0-21swapper/211:05:182
2008499160,15cyclictest0-21swapper/209:55:162
2008499160,15cyclictest0-21swapper/208:45:132
2008499160,15cyclictest0-21swapper/207:20:152
2008499160,15cyclictest0-21swapper/207:20:152
20083991614,1cyclictest4521-21cat11:25:121
20083991614,1cyclictest207512sleep109:02:111
20083991614,1cyclictest18404-21apache_volume11:50:131
20083991614,1cyclictest0-21swapper/109:40:171
20083991614,1cyclictest0-21swapper/109:15:011
20083991614,1cyclictest0-21swapper/107:25:181
20083991614,1cyclictest0-21swapper/107:20:151
20083991614,1cyclictest0-21swapper/107:20:141
20083991614,1cyclictest0-21swapper/107:10:121
20083991613,2cyclictest22016-21nfsd410:00:171
2008399160,2cyclictest455-21plymouthd08:25:141
2008399160,1cyclictest0-21swapper/110:25:161
2008399160,1cyclictest0-21swapper/107:51:041
2008399160,15cyclictest7257-21sed12:25:151
2008399160,15cyclictest5947-21latency07:40:161
2008399160,15cyclictest3982-21H222:10:211
2008399160,15cyclictest29845-21which10:15:161
2008399160,15cyclictest250612chrt11:05:131
2008399160,15cyclictest11500-21expr10:40:141
2008399160,15cyclictest0-21swapper/107:55:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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