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2026-08-25 - 01:24
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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 Mon Aug 24, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3049799263,18cyclictest5119-21cat11:10:010
30499992212,5cyclictest0-21swapper/208:10:192
3049999220,4cyclictest0-21swapper/212:20:152
3049999210,5cyclictest0-21swapper/212:36:402
30499992016,3cyclictest4099-21H222:10:212
30499992014,5cyclictest4035-21H222:10:212
3049899204,1cyclictest0-21swapper/107:33:171
30499991917,1cyclictest28-21ksoftirqd/211:03:592
3049999190,18cyclictest0-21swapper/210:06:312
3049999190,18cyclictest0-21swapper/210:06:302
3049899193,15cyclictest31048-21expr07:10:151
30498991917,1cyclictest21-21ksoftirqd/111:26:311
30497991917,1cyclictest0-21swapper/011:17:080
30497991914,2cyclictest3981-21H222:10:210
30497991910,8cyclictest843-21systemd-network11:27:180
3049799190,17cyclictest3058-21rs:main0
3049799190,16cyclictest4035-21H222:10:210
3049799190,16cyclictest3983-21H222:10:210
3049999186,11cyclictest0-21swapper/210:39:172
30499991816,1cyclictest0-21swapper/212:29:392
3049999181,15cyclictest3976-21H222:10:212
3049999181,15cyclictest0-21swapper/208:08:592
3049999181,15cyclictest0-21swapper/208:04:052
3049999180,3cyclictest3981-21H222:10:212
3049999180,3cyclictest0-21swapper/211:11:262
3049999180,2cyclictest4035-21H222:10:212
3049999180,2cyclictest3981-21H222:10:212
3049999180,2cyclictest3981-21H222:10:212
3049999180,2cyclictest3979-21H222:10:212
3049999180,17cyclictest7539-21latency_hist09:20:012
3049999180,17cyclictest4099-21H222:10:212
3049999180,17cyclictest0-21swapper/211:25:182
3049999180,17cyclictest0-21swapper/209:12:242
3049999180,16cyclictest3991-21H222:10:212
3049999180,16cyclictest3976-21H222:10:212
3049899182,15cyclictest26235-21http_loadtime08:55:151
30498991816,1cyclictest9550-21sh12:10:191
30498991816,1cyclictest21-21ksoftirqd/112:23:081
3049899181,2cyclictest3989-21H222:10:211
3049899181,16cyclictest3989-21H222:10:211
3049899181,16cyclictest23094-21nfsd412:35:191
3049899180,17cyclictest8169-21sed08:25:001
3049899180,17cyclictest3976-21H222:10:211
3049899180,16cyclictest4035-21H222:10:211
3049799183,1cyclictest0-21swapper/012:13:160
3049799182,15cyclictest9-21ksoftirqd/008:18:390
30497991816,1cyclictest19742-21cat10:35:210
30497991816,1cyclictest0-21swapper/009:35:580
30497991815,2cyclictest3983-21H222:10:210
3049799180,3cyclictest399-20systemd-journal08:26:090
3049799180,2cyclictest4099-21H222:10:210
3049799180,2cyclictest3991-21H222:10:210
3049799180,2cyclictest3985-21H222:10:210
3049799180,17cyclictest3991-21H222:10:210
3049799180,17cyclictest3976-21H222:10:210
3049799180,15cyclictest3985-21H222:10:210
3049799180,15cyclictest3985-21H222:10:210
30499991715,1cyclictest28-21ksoftirqd/208:33:352
30499991715,1cyclictest0-21swapper/211:45:112
30499991715,1cyclictest0-21swapper/209:36:282
30499991715,1cyclictest0-21swapper/209:25:132
30499991714,2cyclictest3989-21H222:10:212
30499991714,2cyclictest25004-21smartctl07:55:182
30499991714,2cyclictest24318-21vmstat11:40:242
30499991714,2cyclictest13702-21nfsd407:35:182
3049999170,2cyclictest993-21dbus-daemon09:05:202
3049999170,2cyclictest9720-21/usr/sbin/munin08:25:192
3049999170,2cyclictest9631-21pzem_current11:15:212
3049999170,2cyclictest3989-21H222:10:212
3049999170,2cyclictest3985-21H222:10:212
3049999170,2cyclictest3983-21H222:10:212
3049999170,2cyclictest3981-21H222:10:212
3049999170,2cyclictest11642-21apt-get10:24:592
3049999170,1cyclictest4035-21H222:10:212
3049999170,1cyclictest3985-21H222:10:212
3049999170,1cyclictest0-21swapper/211:20:162
3049999170,16cyclictest9286-21processes09:20:192
3049999170,16cyclictest4099-21H222:10:212
3049999170,16cyclictest3981-21H222:10:212
3049999170,16cyclictest23921-21cat10:45:142
3049999170,16cyclictest23565-21idleruntime08:50:172
3049999170,16cyclictest22383-21/usr/sbin/munin10:40:222
3049999170,16cyclictest21876-21munin-run11:40:012
3049999170,16cyclictest18848-21processes08:40:202
3049999170,16cyclictest13174-21/usr/sbin/munin10:25:162
3049999170,15cyclictest3979-21H222:10:212
30498991716,1cyclictest21-21ksoftirqd/109:50:141
30498991715,1cyclictest21-21ksoftirqd/109:12:571
30498991715,1cyclictest0-21swapper/109:45:351
30498991715,1cyclictest0-21swapper/107:15:161
30498991714,2cyclictest7512-21latency10:15:151
30498991714,2cyclictest4099-21H222:10:211
30498991714,2cyclictest3985-21H222:10:211
30498991714,2cyclictest3985-21H222:10:211
30498991714,2cyclictest30938-21users10:55:211
30498991714,2cyclictest2069-21systemd-udevd11:46:521
30498991714,2cyclictest20471-21ntp_offset12:30:181
30498991714,2cyclictest12290-21df08:30:161
30498991713,2cyclictest3976-21H222:10:211
3049899170,2cyclictest8713-21kernelversion09:20:161
3049899170,2cyclictest4493-21fschecks_count10:10:151
3049899170,2cyclictest30524-21cron11:55:001
3049899170,2cyclictest22113-21apt-config11:40:001
3049899170,2cyclictest19128-21latency07:45:181
3049899170,2cyclictest10963-21expr09:25:141
3049899170,1cyclictest3985-21H222:10:211
3049899170,1cyclictest0-21swapper/109:05:141
3049899170,16cyclictest9491-21cut08:25:181
3049899170,16cyclictest811-21cat10:05:141
3049899170,16cyclictest811-21cat10:05:141
3049899170,16cyclictest4099-21H222:10:211
3049899170,16cyclictest4035-21H222:10:211
3049899170,16cyclictest4035-21H222:10:211
3049899170,16cyclictest4035-21H222:10:211
3049899170,16cyclictest3991-21H222:10:211
3049899170,16cyclictest3985-21H222:10:211
3049899170,16cyclictest3983-21H222:10:211
3049899170,16cyclictest3979-21H222:10:211
3049899170,16cyclictest31838-21grep11:00:141
3049899170,16cyclictest22262-21nvmesmart_nvme007:50:181
3049899170,16cyclictest14505-21snapd09:43:011
3049899170,16cyclictest10246-21/usr/sbin/munin10:20:161
30497991714,2cyclictest4035-21H222:10:210
30497991714,2cyclictest3981-21H222:10:210
30497991714,2cyclictest3981-21H222:10:210
30497991714,2cyclictest3981-21H222:10:210
30497991714,2cyclictest3981-21H222:10:210
30497991714,2cyclictest3979-21H222:10:210
30497991714,2cyclictest29930-21sed11:50:220
30497991714,2cyclictest25781-21cat08:55:130
30497991714,2cyclictest15598-21expr10:30:150
30497991714,2cyclictest15598-21expr10:30:140
30497991714,2cyclictest15204-21plymouth12:20:190
30497991712,4cyclictest426-21systemd-udevd07:26:520
3049799171,15cyclictest6592-21nfsd411:10:180
3049799171,15cyclictest21900-21missed_timers07:50:160
3049799170,2cyclictest4099-21H222:10:210
3049799170,2cyclictest4035-21H222:10:210
3049799170,2cyclictest3991-21H222:10:210
3049799170,2cyclictest3979-21H222:10:210
3049799170,2cyclictest16316-21/usr/sbin/munin11:30:120
3049799170,2cyclictest14550-21snapd09:50:270
3049799170,2cyclictest1035-21thermald10:25:210
3049799170,1cyclictest3981-21H222:10:210
3049799170,1cyclictest0-21swapper/010:46:070
3049799170,16cyclictest5768-21expr08:20:130
3049799170,16cyclictest4099-21H222:10:210
3049799170,16cyclictest4035-21H222:10:210
3049799170,16cyclictest3981-21H222:10:210
3049799170,16cyclictest31584-21munin-run11:00:010
3049799170,16cyclictest21621-21python311:39:590
3049799170,16cyclictest21300-21awk08:45:190
3049799170,16cyclictest14124-21switchtime07:35:220
3049799170,16cyclictest10925-21grep07:30:170
3049799170,16cyclictest0-21swapper/010:20:170
3049799170,16cyclictest0-21swapper/010:03:520
30499991614,1cyclictest0-21swapper/212:05:132
30499991614,1cyclictest0-21swapper/211:30:132
30499991614,1cyclictest0-21swapper/210:55:202
30499991614,1cyclictest0-21swapper/208:15:142
30499991614,1cyclictest0-21swapper/207:45:162
30499991613,2cyclictest28057-21apt-config11:50:002
3049999160,2cyclictest25022-21expr09:50:152
3049999160,2cyclictest19268-21sshd09:40:102
3049999160,1cyclictest3976-21H222:10:212
3049999160,15cyclictest2430-21expr12:00:142
3049999160,15cyclictest20856-21apache_volume07:50:092
3049999160,15cyclictest0-21swapper/210:30:192
3049999160,15cyclictest0-21swapper/210:30:182
30498991614,1cyclictest23346-21cat08:50:171
30498991614,1cyclictest0-21swapper/112:05:181
30498991614,1cyclictest0-21swapper/111:08:591
30498991614,1cyclictest0-21swapper/110:35:041
30498991614,1cyclictest0-21swapper/107:56:081
30498991613,2cyclictest7308-21cat07:25:151
30498991613,2cyclictest3981-21H222:10:211
3049899160,1cyclictest3976-21H222:10:211
3049899160,1cyclictest0-21swapper/112:00:151
3049899160,15cyclictest31919-21expr11:55:141
3049899160,15cyclictest30187-21/usr/sbin/munin10:00:171
3049899160,15cyclictest28970-21expr09:00:141
3049899160,15cyclictest23792-21expr10:45:141
3049899160,15cyclictest22512-21cpuspeed_turbos11:40:151
3049899160,15cyclictest0-21swapper/112:15:131
3049899160,15cyclictest0-21swapper/110:50:121
3049899160,15cyclictest0-21swapper/110:43:561
3049899160,15cyclictest0-21swapper/108:40:131
3049899160,15cyclictest0-21swapper/108:01:091
3049899160,15cyclictest0-21swapper/107:20:181
30497991614,1cyclictest0-21swapper/010:40:140
30497991614,1cyclictest0-21swapper/009:55:140
30497991614,1cyclictest0-21swapper/009:40:160
30497991613,2cyclictest7178-21fschecks_count10:15:130
30497991613,2cyclictest3981-21H222:10:210
3049799160,1cyclictest0-21swapper/012:15:110
3049799160,1cyclictest0-21swapper/008:40:120
3049799160,15cyclictest27209-21postgres11:47:380
3049799160,15cyclictest19518-21ntpq07:45:190
3049799160,15cyclictest0-21swapper/012:05:150
3049799160,15cyclictest0-21swapper/010:05:220
3049799160,15cyclictest0-21swapper/010:05:210
3049799160,15cyclictest0-21swapper/008:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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