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2026-06-10 - 06:23
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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 Wed Jun 10, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3231399240,19cyclictest0-21swapper/120:55:131
32318992322,0cyclictest0-21swapper/222:40:162
3231899230,5cyclictest0-21swapper/220:30:142
3230999230,5cyclictest0-21swapper/023:58:410
3231399220,22cyclictest0-21swapper/121:54:521
32318992118,1cyclictest0-21swapper/222:46:282
3230999214,13cyclictest28909-21grep23:50:000
32318992018,1cyclictest0-21swapper/200:00:142
32318992017,2cyclictest3979-21H222:10:212
3231399200,17cyclictest0-21swapper/119:39:251
32318991917,1cyclictest0-21swapper/222:53:562
32318991916,1cyclictest0-21swapper/200:35:162
3231899190,18cyclictest1584-21nfsd419:10:172
32313991915,3cyclictest0-21swapper/123:54:421
32313991911,0cyclictest0-21swapper/120:36:381
3231399190,18cyclictest0-21swapper/122:01:091
32309991917,1cyclictest0-21swapper/022:40:490
32309991916,2cyclictest6362-21taskset23:06:480
32309991914,4cyclictest0-21swapper/020:01:110
32309991914,3cyclictest15758-21nvmesmart_nvme000:20:180
32309991912,6cyclictest0-21swapper/022:12:210
3230999190,18cyclictest0-21swapper/023:03:000
3230999190,18cyclictest0-21swapper/021:00:180
3230999190,16cyclictest0-21swapper/021:40:140
3231899182,1cyclictest0-21swapper/222:29:542
3231899182,15cyclictest22197-21latency_hist20:45:022
32318991815,2cyclictest7096-21cat20:15:192
32318991815,2cyclictest24890-21munin-run20:50:012
32318991814,3cyclictest863-21avahi-daemon00:05:242
3231899181,2cyclictest29121-21smartctl20:55:202
3231899180,17cyclictest455-21plymouthd19:55:192
3231899180,17cyclictest4035-21H222:10:212
3231899180,17cyclictest26126-21munin-run21:50:002
3231899180,17cyclictest23885-21cut23:40:142
3231899180,16cyclictest4035-21H222:10:212
3231899180,16cyclictest32455-21anvil23:00:122
3231899180,15cyclictest0-21swapper/222:35:162
3231399182,15cyclictest0-21swapper/122:50:191
32313991816,1cyclictest0-21swapper/119:58:321
32313991815,2cyclictest31611-21cat20:05:001
32313991813,4cyclictest0-21swapper/123:35:041
3231399180,17cyclictest843-21systemd-network20:28:581
3231399180,17cyclictest3981-21H222:10:211
3230999182,15cyclictest0-21swapper/021:30:210
32309991816,1cyclictest3991-21H222:10:210
32309991816,1cyclictest0-21swapper/023:53:060
32309991816,1cyclictest0-21swapper/019:45:290
32309991816,1cyclictest0-21swapper/019:45:280
32309991814,3cyclictest4333-21nfsd400:00:180
3230999181,2cyclictest18107-21sed22:30:200
3230999181,16cyclictest3983-21H222:10:210
3230999181,16cyclictest3983-21H222:10:210
3231899172,1cyclictest0-21swapper/221:12:492
32318991715,1cyclictest30568-21cut22:55:142
32318991715,1cyclictest0-21swapper/219:45:212
32318991715,1cyclictest0-21swapper/219:45:212
32318991715,1cyclictest0-21swapper/219:35:232
32318991714,2cyclictest843-21systemd-network21:38:032
32318991714,2cyclictest7941-21idleruntime23:10:162
32318991714,2cyclictest7621-21cstates21:15:172
32318991714,2cyclictest713-21sed22:00:172
32318991714,2cyclictest587-21ntpq20:05:182
32318991714,2cyclictest3976-21H222:10:212
32318991714,2cyclictest32520-21cpuspeed_turbos23:55:152
32318991714,2cyclictest31049-21tr21:00:142
32318991714,2cyclictest30392-21idleruntime23:50:152
32318991714,2cyclictest16867-21cstates22:30:132
32318991714,2cyclictest15995-21df23:25:152
32318991714,2cyclictest1375-21munin-node21:40:112
32318991714,2cyclictest11425-21cstates20:25:142
3231899171,1cyclictest0-21swapper/223:05:202
3231899171,15cyclictest8074-21chrt19:20:492
3231899171,15cyclictest8074-21chrt19:20:482
3231899170,3cyclictest0-21swapper/221:30:212
3231899170,2cyclictest3979-21H222:10:212
3231899170,2cyclictest3707-21master23:34:192
3231899170,2cyclictest31456-21chrt21:58:422
3231899170,2cyclictest30298-21ntpq20:00:192
3231899170,2cyclictest23113-21cat19:50:022
3231899170,2cyclictest22388-21pzem_power23:35:202
3231899170,2cyclictest14505-21snapd20:52:362
3231899170,2cyclictest12933-21cstates23:20:142
3231899170,1cyclictest0-21swapper/222:23:222
3231899170,1cyclictest0-21swapper/221:26:572
3231899170,16cyclictest8908-21expr22:15:122
3231899170,16cyclictest3414-21master00:18:452
3231899170,16cyclictest20166-21cstates00:30:132
3231899170,16cyclictest18108-21expr19:40:152
3231899170,16cyclictest17189-21cstates20:35:152
3231899170,16cyclictest11784-21dpkg19:30:012
3231899170,16cyclictest10309-21expr21:20:132
3231899170,15cyclictest0-21swapper/219:15:132
3231399172,1cyclictest3976-21H222:10:211
32313991716,0cyclictest0-21swapper/100:19:551
32313991715,1cyclictest4466-21cpuspeed_turbos23:05:131
32313991715,1cyclictest0-21swapper/122:30:211
32313991714,2cyclictest4035-21H222:10:211
32313991714,2cyclictest25652-21grep20:50:151
32313991714,2cyclictest14765-21taskset23:22:091
32313991714,2cyclictest11393-21smartctl21:20:191
32313991714,2cyclictest1085-21gdbus21:15:231
32313991713,3cyclictest9054-21fschecks_count20:20:141
3231399171,15cyclictest0-21swapper/122:15:131
3231399171,15cyclictest0-21swapper/120:30:151
3231399170,2cyclictest3991-21H222:10:211
3231399170,2cyclictest3987-21H222:10:211
3231399170,2cyclictest3979-21H222:10:211
3231399170,2cyclictest29262-21apache_volume21:55:131
3231399170,2cyclictest24672-21kernelversion23:40:161
3231399170,2cyclictest21084-21grep00:30:171
3231399170,2cyclictest20813-21processes22:35:191
3231399170,2cyclictest16500-21missed_timers23:25:171
3231399170,2cyclictest1219-21nfsd423:55:191
3231399170,1cyclictest0-21swapper/119:50:161
3231399170,1cyclictest0-21swapper/100:10:281
3231399170,16cyclictest6828-21pzem_voltage20:15:191
3231399170,16cyclictest5840-21/usr/sbin/munin00:05:241
3231399170,16cyclictest3991-21H222:10:211
3231399170,16cyclictest31552-21grep22:55:181
3231399170,16cyclictest19556-21ntpq21:35:191
3231399170,16cyclictest19130-21cat23:30:171
3231399170,16cyclictest14550-21snapd22:45:381
3231399170,16cyclictest11201-21date19:30:011
3231399170,16cyclictest0-21swapper/121:05:221
32309991715,1cyclictest25587-21fschecks_count20:50:160
32309991715,1cyclictest0-21swapper/022:25:130
32309991715,1cyclictest0-21swapper/022:03:020
32309991714,2cyclictest8532-21nfsd423:10:170
32309991714,2cyclictest7715-21python320:20:010
32309991714,2cyclictest3414-21master22:05:440
32309991714,2cyclictest23333-21turbostat.cron23:40:000
32309991714,2cyclictest1846-21expr21:05:150
3230999171,15cyclictest28978-21grep22:50:180
3230999170,2cyclictest27966-21cat20:55:130
3230999170,2cyclictest17968-21expr20:35:200
3230999170,2cyclictest15945-21lxd20:28:490
3230999170,2cyclictest0-21swapper/020:45:000
3230999170,16cyclictest9751-21wc21:20:010
3230999170,16cyclictest9608-21idleruntime00:10:160
3230999170,16cyclictest31958-21systemctl22:55:220
3230999170,16cyclictest26301-21sed23:45:000
3230999170,16cyclictest25540-21munin-run00:40:000
3230999170,16cyclictest24907-21processes19:50:190
3230999170,16cyclictest20611-21grep22:35:180
3230999170,16cyclictest10117-21switchtime20:20:210
3230999170,16cyclictest0-21swapper/022:45:150
32318991614,1cyclictest8242-21apt-key20:20:022
32318991614,1cyclictest0-21swapper/223:15:172
32318991614,1cyclictest0-21swapper/223:15:162
32318991614,1cyclictest0-21swapper/200:20:122
32318991613,2cyclictest1235-21/usr/sbin/munin21:05:152
3231899160,15cyclictest9328-21expr00:10:132
3231899160,15cyclictest26917-21cat23:45:132
3231899160,15cyclictest2215-21/usr/sbin/munin20:10:222
32313991614,1cyclictest0-21swapper/123:45:161
32313991614,1cyclictest0-21swapper/121:25:151
32313991614,1cyclictest0-21swapper/121:10:161
32313991614,1cyclictest0-21swapper/119:45:141
32313991614,1cyclictest0-21swapper/119:45:131
32313991614,1cyclictest0-21swapper/100:35:101
32313991614,1cyclictest0-21swapper/100:00:161
3231399160,1cyclictest0-21swapper/122:20:161
3231399160,15cyclictest23170-21sed22:40:161
3231399160,15cyclictest17141-21ls00:25:131
3231399160,15cyclictest0-21swapper/123:15:221
3231399160,15cyclictest0-21swapper/123:15:221
3231399160,15cyclictest0-21swapper/123:00:121
3231399160,15cyclictest0-21swapper/122:25:171
3231399160,15cyclictest0-21swapper/121:45:131
3231399160,15cyclictest0-21swapper/121:30:131
3231399160,15cyclictest0-21swapper/121:00:141
3231399160,15cyclictest0-21swapper/120:45:161
3231399160,15cyclictest0-21swapper/120:40:131
3231399160,15cyclictest0-21swapper/120:10:141
3231399160,15cyclictest0-21swapper/120:05:121
3231399160,15cyclictest0-21swapper/119:20:141
3231399160,15cyclictest0-21swapper/119:20:141
3231399160,15cyclictest0-21swapper/119:20:011
32309991614,2cyclictest11956-21apt-get19:30:130
32309991614,1cyclictest19858-21ls00:30:120
32309991614,1cyclictest13839-21needreboot23:20:180
32309991614,1cyclictest0-21swapper/023:26:250
32309991614,1cyclictest0-21swapper/021:50:120
32309991614,1cyclictest0-21swapper/021:45:140
32309991614,1cyclictest0-21swapper/021:20:150
32309991614,1cyclictest0-21swapper/020:45:200
32309991614,1cyclictest0-21swapper/020:30:150
32309991614,1cyclictest0-21swapper/019:55:170
32309991614,1cyclictest0-21swapper/019:40:140
32309991614,1cyclictest0-21swapper/019:25:150
32309991614,1cyclictest0-21swapper/019:10:120
32309991614,1cyclictest0-21swapper/000:05:020
32309991613,2cyclictest30538-21expr21:55:180
32309991613,2cyclictest2943-21fschecks_count20:10:150
32309991613,2cyclictest12878-21grep00:15:190
3230999160,2cyclictest7475-21ntp_kernel_pll_19:20:200
3230999160,2cyclictest7475-21ntp_kernel_pll_19:20:190
3230999160,1cyclictest0-21swapper/021:10:140
3230999160,1cyclictest0-21swapper/019:15:130
3230999160,15cyclictest0-21swapper/023:30:120
3230999160,15cyclictest0-21swapper/022:20:230
3230999160,15cyclictest0-21swapper/022:20:010
3230999160,15cyclictest0-21swapper/021:35:210
3230999160,15cyclictest0-21swapper/020:05:120
3230999160,15cyclictest0-21swapper/019:35:160
3231399150,1cyclictest0-21swapper/123:10:211
3230999150,1cyclictest0-21swapper/021:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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