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2026-05-23 - 06:59
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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 highest latencies:
System rackdslot0.osadl.org (updated Sat May 23, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22747992927,1cyclictest0-21swapper/022:20:140
2274799257,15cyclictest0-21swapper/022:46:420
2274799212,13cyclictest10414-21perf19:45:010
22747992121,0cyclictest0-21swapper/020:45:120
22749992014,5cyclictest843-21systemd-network00:10:362
2274899204,15cyclictest0-21swapper/123:40:151
2274899204,15cyclictest0-21swapper/119:18:491
2274899200,19cyclictest0-21swapper/122:35:031
22749991916,2cyclictest12516-21grep21:40:152
2274999190,18cyclictest0-21swapper/222:35:042
2274899192,2cyclictest388-21chrt23:07:431
2274899192,2cyclictest14900-21idleruntime-cro23:34:591
22748991914,4cyclictest399-20systemd-journal21:47:521
2274899191,16cyclictest0-21swapper/119:50:171
2274899190,18cyclictest843-21systemd-network22:30:391
2274799193,1cyclictest0-21swapper/019:25:300
2274999189,5cyclictest0-21swapper/219:40:212
22749991815,2cyclictest9130-21taskset23:21:292
2274999181,2cyclictest9418-21nfsd422:25:172
2274899183,1cyclictest0-21swapper/100:38:301
22748991816,1cyclictest13821-21memory20:45:161
22748991814,3cyclictest22513-21perf21:55:001
22748991814,3cyclictest0-21swapper/121:56:201
2274899180,17cyclictest19607-21ntp_kernel_pll_20:55:171
2274899180,16cyclictest22133-21https20:05:011
2274799182,1cyclictest0-21swapper/019:18:160
2274799182,15cyclictest0-21swapper/022:30:010
22747991816,1cyclictest0-21swapper/019:24:250
22747991814,3cyclictest23257-21munin-run23:50:000
22747991813,1cyclictest0-21swapper/021:48:150
2274799181,16cyclictest29111-21cat00:00:110
2274799181,16cyclictest0-21swapper/022:30:180
2274799180,2cyclictest3976-21H222:10:210
22749991715,1cyclictest0-21swapper/219:50:172
22749991714,2cyclictest4408-21/usr/sbin/munin20:30:212
22749991714,2cyclictest4054-21sed20:30:022
22749991714,2cyclictest3976-21H222:10:212
22749991714,2cyclictest26962-21df23:55:122
22749991714,2cyclictest23344-21munin-run23:50:002
22749991714,2cyclictest2007-21systemd-journal19:56:282
22749991714,2cyclictest19440-21apt-get20:00:112
22749991714,2cyclictest16192-21grep21:47:482
22749991714,2cyclictest1591-21timerandwakeup21:20:222
22749991714,2cyclictest15278-21ls00:30:162
22749991714,2cyclictest13684-21irqstats20:45:172
22749991714,2cyclictest12450-21munin-run23:30:012
22749991714,2cyclictest1085-21gdbus23:50:222
2274999171,1cyclictest0-21swapper/200:00:132
2274999170,3cyclictest0-21swapper/220:40:212
2274999170,2cyclictest6269-21missed_timers19:35:152
2274999170,2cyclictest4149-21cut21:25:162
2274999170,2cyclictest4099-21H222:10:212
2274999170,2cyclictest3414-21master21:06:282
2274999170,2cyclictest3414-21master21:06:272
2274999170,2cyclictest29594-21ntp_states20:15:192
2274999170,2cyclictest29313-21cat19:20:162
2274999170,2cyclictest27396-21taskset22:58:072
2274999170,2cyclictest24125-21fgrep20:05:212
2274999170,2cyclictest20599-21cut23:45:002
2274999170,2cyclictest10475-21python319:45:012
2274999170,1cyclictest8359-21apt00:20:112
2274999170,16cyclictest8657-21awk20:35:172
2274999170,16cyclictest31746-21sed21:20:022
2274999170,16cyclictest17165-21switchtime20:50:372
2274999170,16cyclictest14504-21snapd00:25:362
2274999170,16cyclictest13248-21perl23:30:152
2274999170,16cyclictest1166-21chrt19:29:362
2274999170,16cyclictest0-21swapper/222:45:212
2274899172,1cyclictest15721-21processes00:30:201
22748991714,2cyclictest9830-21dpkg23:25:101
22748991714,2cyclictest8753-21fschecks_time22:25:131
22748991714,2cyclictest5850-21cstates00:15:131
22748991714,2cyclictest2774-21fschecks_count22:15:151
22748991714,2cyclictest19348-21cron22:45:001
22748991714,2cyclictest1526-21lxd23:46:351
22748991714,2cyclictest14501-21snapd21:08:151
22748991714,2cyclictest14501-21snapd21:08:151
22748991714,2cyclictest0-21swapper/122:05:171
22748991713,3cyclictest18093-21nvmesmart_nvme019:55:191
2274899171,15cyclictest4254-21smartctl21:25:171
2274899170,2cyclictest455-21plymouthd21:31:291
2274899170,2cyclictest2299-21cupsd20:44:451
2274899170,16cyclictest8749-21fschecks_time19:40:151
2274899170,16cyclictest6718-21cron20:35:011
2274899170,16cyclictest3450-21gsd-color00:25:001
2274899170,16cyclictest3440-21idleruntime00:10:161
2274899170,16cyclictest3351-21lxd23:58:361
2274899170,16cyclictest31274-21grep19:25:121
2274899170,16cyclictest28767-21cut19:20:151
2274899170,16cyclictest27244-21grep21:10:131
2274899170,16cyclictest14495-21snapd22:45:271
2274799172,1cyclictest7902sleep020:24:290
2274799172,1cyclictest0-21swapper/023:07:460
22747991715,1cyclictest301792sleep023:03:420
22747991714,2cyclictest7166-21wc23:20:130
22747991714,2cyclictest7141-21chrt19:35:260
22747991714,2cyclictest28435-21cpuspeed_turbos20:15:130
22747991714,2cyclictest27526-21runrttasks22:59:570
22747991714,2cyclictest27489-21sed22:00:220
22747991714,2cyclictest2533-21chrt00:10:050
22747991714,2cyclictest25189-21ps21:05:190
22747991714,2cyclictest25189-21ps21:05:190
22747991714,2cyclictest2353-21munin-plugin-st21:25:000
22747991714,2cyclictest21676-21fschecks_time21:00:150
22747991714,2cyclictest18841-21tune2fs23:40:140
22747991714,2cyclictest15456-21cut00:30:170
22747991714,2cyclictest1525-21lxd20:00:530
22747991714,2cyclictest1516-21lxd23:26:360
22747991714,2cyclictest14551-21cstates22:35:140
22747991714,2cyclictest14550-21snapd23:15:150
22747991714,2cyclictest14550-21snapd23:15:150
22747991714,2cyclictest11449-21expr00:25:120
2274799171,15cyclictest0-21swapper/019:10:130
2274799170,2cyclictest4029-21switchtime19:30:210
2274799170,2cyclictest29862-21expr21:15:130
2274799170,2cyclictest2389-21latency_hist00:10:000
2274799170,2cyclictest2007-21systemd-journal22:16:290
2274799170,2cyclictest14882-21perf23:34:590
2274799170,2cyclictest11977-21idleruntime19:45:140
2274799170,1cyclictest0-21swapper/021:37:290
2274799170,16cyclictest7132-21cat20:35:090
2274799170,16cyclictest27716-21cut23:55:170
2274799170,16cyclictest25146-21munin-plugin-st20:10:000
2274799170,16cyclictest19778-21pzem_voltage20:55:200
2274799170,16cyclictest1962-21df20:25:140
2274799170,16cyclictest12258-21cat21:40:140
2274799170,16cyclictest0-21swapper/020:40:160
2274799170,15cyclictest0-21swapper/019:51:400
22749991614,1cyclictest72382chrt22:21:392
22749991614,1cyclictest6830-21expr21:30:182
22749991614,1cyclictest4353-21apt-get23:15:122
22749991614,1cyclictest4353-21apt-get23:15:112
22749991614,1cyclictest0-21swapper/223:35:112
22749991614,1cyclictest0-21swapper/223:10:162
22749991614,1cyclictest0-21swapper/222:40:132
22749991614,1cyclictest0-21swapper/222:15:202
22749991614,1cyclictest0-21swapper/222:05:132
22749991614,1cyclictest0-21swapper/221:10:132
22749991614,1cyclictest0-21swapper/220:55:102
22749991614,1cyclictest0-21swapper/219:10:162
22749991613,2cyclictest26438-21idleruntime22:00:152
22749991613,2cyclictest20450-21cat21:50:142
2274999160,2cyclictest11445-21fschecks_count22:30:142
2274999160,1cyclictest31544-21dpkg22:10:022
2274999160,1cyclictest30931-21/usr/sbin/munin20:20:092
2274999160,1cyclictest30841-21cpuspeed_turbos23:05:142
2274999160,1cyclictest1274-21runrttasks22:50:112
2274999160,1cyclictest0-21swapper/221:35:142
2274999160,1cyclictest0-21swapper/200:05:142
2274999160,15cyclictest399-20systemd-journal19:15:022
2274999160,15cyclictest26194-21awk20:10:162
2274999160,15cyclictest0-21swapper/223:00:132
2274999160,15cyclictest0-21swapper/221:00:132
2274999160,15cyclictest0-21swapper/219:30:172
2274999160,15cyclictest0-21swapper/200:35:122
22748991614,1cyclictest0-21swapper/123:15:131
22748991614,1cyclictest0-21swapper/123:15:121
22748991614,1cyclictest0-21swapper/122:50:161
22748991614,1cyclictest0-21swapper/122:20:131
22748991614,1cyclictest0-21swapper/121:15:131
22748991614,1cyclictest0-21swapper/121:00:181
22748991613,2cyclictest29224-21awk23:00:171
22748991613,1cyclictest0-21swapper/122:00:131
2274899160,2cyclictest25528-21grep20:10:131
2274899160,1cyclictest23673-21cpu23:50:141
2274899160,1cyclictest0-21swapper/123:20:231
2274899160,15cyclictest32099-21ls22:10:131
2274899160,15cyclictest31856-21apt-get00:05:121
2274899160,15cyclictest28514-21expr20:15:141
2274899160,15cyclictest15522-21apt-get20:50:141
2274899160,15cyclictest1515-21lxd21:24:531
2274899160,15cyclictest0-21swapper/123:35:131
2274899160,15cyclictest0-21swapper/123:10:111
2274899160,15cyclictest0-21swapper/122:55:161
2274899160,15cyclictest0-21swapper/121:35:171
2274899160,15cyclictest0-21swapper/120:25:121
2274899160,15cyclictest0-21swapper/120:20:111
2274899160,15cyclictest0-21swapper/120:00:131
2274899160,15cyclictest0-21swapper/119:45:011
2274899160,15cyclictest0-21swapper/119:35:141
2274899160,15cyclictest0-21swapper/119:30:161
2274899160,15cyclictest0-21swapper/119:10:151
2274899160,15cyclictest0-21swapper/100:25:191
2274899160,15cyclictest0-21swapper/100:00:171
22747991614,1cyclictest0-21swapper/023:10:120
22747991614,1cyclictest0-21swapper/022:05:010
22747991614,1cyclictest0-21swapper/021:30:150
22747991614,1cyclictest0-21swapper/020:10:130
22747991614,1cyclictest0-21swapper/000:35:140
22747991613,2cyclictest5993-21mailstats20:30:200
22747991613,2cyclictest17600-21expr22:40:120
22747991613,2cyclictest17062-21pzem_power20:50:360
22747991613,2cyclictest16492-21netstat23:35:150
2274799160,2cyclictest31455-21apt-config22:10:010
2274799160,1cyclictest24070-21/usr/sbin/munin21:55:170
2274799160,1cyclictest0-21swapper/019:56:340
2274799160,1cyclictest0-21swapper/000:15:150
2274799160,15cyclictest5299-21cut21:30:010
2274799160,15cyclictest23764-21cpuspeed_turbos23:50:140
2274799160,15cyclictest0-21swapper/022:50:120
2274799160,15cyclictest0-21swapper/021:50:140
2274799160,15cyclictest0-21swapper/021:10:130
22748991513,1cyclictest7129-21/usr/sbin/munin20:35:131
2274899150,14cyclictest0-21swapper/121:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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