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2026-08-22 - 12:01
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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 Aug 22, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
978899220,19cyclictest0-21swapper/200:38:222
978899203,16cyclictest880-21rs:main2
978399203,16cyclictest0-21swapper/122:37:111
9783992015,4cyclictest0-21swapper/122:00:121
9783992015,4cyclictest0-21swapper/122:00:121
977899204,15cyclictest0-21swapper/021:51:200
9778992017,2cyclictest11131-21latency_hist22:05:010
9778992017,2cyclictest11131-21latency_hist22:05:000
978899194,1cyclictest0-21swapper/221:41:372
978899194,1cyclictest0-21swapper/219:32:592
9788991917,1cyclictest0-21swapper/200:24:292
978899190,18cyclictest0-21swapper/223:00:142
978399192,2cyclictest23489-21taskset21:27:081
978399190,18cyclictest0-21swapper/100:34:441
9778991917,1cyclictest0-21swapper/023:00:000
977899190,16cyclictest10151-21lxd23:06:520
977899190,15cyclictest0-21swapper/022:15:240
9788991816,1cyclictest0-21swapper/200:00:522
9788991815,2cyclictest15847-21processes20:15:222
9788991814,3cyclictest2007-21systemd-journal21:37:272
978899181,2cyclictest25601-21proc_pri21:30:242
978899181,2cyclictest21699-21ps22:20:202
978899181,1cyclictest0-21swapper/221:20:062
978899180,3cyclictest31408-21cut23:35:122
978899180,3cyclictest2007-21systemd-journal20:12:192
978899180,17cyclictest11432-21sed22:05:012
978899180,17cyclictest11432-21sed22:05:002
978899180,17cyclictest0-21swapper/222:06:292
978399182,15cyclictest21-21ksoftirqd/122:30:121
978399182,15cyclictest201rcuc/119:56:131
9783991816,1cyclictest21-21ksoftirqd/100:10:321
9783991816,1cyclictest21-21ksoftirqd/100:10:311
9783991816,1cyclictest0-21swapper/123:07:311
9783991816,1cyclictest0-21swapper/119:17:521
9783991815,2cyclictest21603-21ntp_kernel_err22:20:191
978399180,3cyclictest455-21plymouthd21:20:011
978399180,2cyclictest12741-21munin-run00:00:001
978399180,17cyclictest0-21swapper/120:50:141
9778991816,1cyclictest0-21swapper/021:20:000
9778991816,1cyclictest0-21swapper/020:48:010
9778991816,1cyclictest0-21swapper/020:35:010
9778991814,3cyclictest26724-21fschecks_count22:30:140
9788991715,1cyclictest8131-21chrt21:58:152
9788991715,1cyclictest29843-21switchtime20:40:212
9788991714,2cyclictest8324-21apache_processe22:55:092
9788991714,2cyclictest5580-21/usr/sbin/munin22:50:202
9788991714,2cyclictest3851-21grep19:55:152
9788991714,2cyclictest32081-21date22:40:012
9788991714,2cyclictest31107-21grep19:45:172
9788991714,2cyclictest29279-21sed00:25:202
9788991714,2cyclictest27679-21fschecks_count19:40:142
9788991714,2cyclictest27638-21sed20:39:002
9788991714,2cyclictest25954-21grep23:25:132
9788991714,2cyclictest23124-21apt-key22:25:002
9788991714,2cyclictest22432-21cat20:30:022
9788991714,2cyclictest16040-21cat23:05:222
9788991714,2cyclictest15200-21expr22:10:132
9788991714,2cyclictest11429-21sed21:05:202
9788991714,2cyclictest10345-21/usr/sbin/munin23:55:142
9788991713,3cyclictest28601-21apt-config22:35:002
978899170,2cyclictest7285-21cpuspeed_turbos21:00:122
978899170,2cyclictest6384-21cstates20:00:132
978899170,2cyclictest5070-21fschecks_count20:55:142
978899170,2cyclictest20373-21cstates23:15:142
978899170,2cyclictest17936-21if_enp1s023:10:152
978899170,2cyclictest10483-21threads20:05:222
978899170,16cyclictest9480-21sed23:50:202
978899170,16cyclictest5601-21lxd22:42:512
978899170,16cyclictest3193-21grep20:50:222
978899170,16cyclictest31880-21latency20:45:162
978899170,16cyclictest30112-21/usr/sbin/munin23:30:202
978899170,16cyclictest2638-21latency_hist21:50:012
978899170,16cyclictest24740-21df19:35:132
978899170,16cyclictest22883-21apt-key23:20:022
978899170,16cyclictest22622-21nfsd421:25:162
978899170,16cyclictest22232-21/usr/sbin/munin00:15:142
978899170,16cyclictest19437-21cron20:25:002
978899170,16cyclictest19377-21expr00:10:132
978899170,16cyclictest19377-21expr00:10:132
978899170,16cyclictest10743-21fschecks_time19:10:142
978899170,15cyclictest0-21swapper/223:45:142
9783991716,1cyclictest21-21ksoftirqd/123:30:151
9783991716,1cyclictest21-21ksoftirqd/122:50:171
9783991715,1cyclictest21-21ksoftirqd/122:45:121
9783991715,1cyclictest21-21ksoftirqd/120:25:001
9783991715,1cyclictest21-21ksoftirqd/119:15:021
9783991714,2cyclictest5601-21lxd19:28:521
9783991714,2cyclictest26381-21sed20:35:161
9783991714,2cyclictest18022-21chrt19:21:251
9783991714,2cyclictest1348-21lxd19:48:521
9783991714,2cyclictest11643-21cut23:00:131
9783991714,1cyclictest0-21swapper/120:25:121
9783991713,1cyclictest111rcu_preempt21:35:541
978399171,1cyclictest201rcuc/120:45:111
978399171,15cyclictest9220-21chrt21:01:441
978399171,15cyclictest3790-21sed00:40:011
978399171,15cyclictest21-21ksoftirqd/123:40:191
978399171,15cyclictest21-21ksoftirqd/121:55:131
978399171,15cyclictest21-21ksoftirqd/120:30:161
978399171,15cyclictest15486-21latency_hist00:04:591
978399171,15cyclictest12098-21chrt21:08:331
978399170,2cyclictest9684-21cut20:05:171
978399170,2cyclictest29673-21taskset00:28:161
978399170,2cyclictest14505-21snapd21:48:081
978399170,2cyclictest1057-21cron20:45:001
978399170,16cyclictest8668-21expr22:55:121
978399170,16cyclictest6008-21apache_accesses20:00:121
978399170,16cyclictest22992-21ntpq00:15:161
978399170,16cyclictest19829-21awk22:19:591
978399170,16cyclictest17793-21fschecks_time23:10:151
978399170,16cyclictest15750-21sed22:10:171
978399170,16cyclictest14499-21snapd22:25:291
978399170,16cyclictest12918-21grep21:10:131
978399170,16cyclictest12918-21grep21:10:121
9778991715,1cyclictest9-21ksoftirqd/022:20:210
9778991715,1cyclictest0-21swapper/019:29:040
9778991714,2cyclictest843-21systemd-network23:58:090
9778991714,2cyclictest7899-21http_loadtime21:00:140
9778991714,2cyclictest3434-21expr19:55:130
9778991714,2cyclictest30935-21grep00:30:150
9778991714,2cyclictest27787-21kernelversion21:35:170
9778991714,2cyclictest22163-21munin-run23:20:010
9778991714,2cyclictest20351-21sed21:20:220
9778991714,2cyclictest10048-21date23:55:010
9778991713,3cyclictest0-21swapper/023:25:140
9778991711,5cyclictest870-21systemd-logind22:28:520
977899171,15cyclictest6758-21awk21:00:010
977899171,15cyclictest4086-21nfsd422:45:170
977899170,2cyclictest6689-21timerandwakeup23:45:200
977899170,2cyclictest25352-21cat00:20:130
977899170,17cyclictest0-21swapper/022:45:000
977899170,16cyclictest601-21anvil20:50:420
977899170,16cyclictest3076-21iscsid19:40:120
977899170,16cyclictest29287-21sed00:25:210
977899170,16cyclictest2543-21idleruntime-cro19:55:010
977899170,16cyclictest24180-21sed23:20:180
977899170,16cyclictest24167-21apache_volume19:35:110
977899170,16cyclictest17622-21/usr/sbin/munin19:20:190
977899170,16cyclictest16008-21apache_accesses00:05:110
977899170,16cyclictest15582-21munin-run19:20:010
977899170,16cyclictest1195-21df00:35:130
977899170,16cyclictest10459-21sed20:05:230
977899170,16cyclictest0-21swapper/020:11:150
9788991614,1cyclictest0-21swapper/219:50:122
9788991614,1cyclictest0-21swapper/219:25:112
9788991614,1cyclictest0-21swapper/219:20:132
978899160,2cyclictest30615-21expr00:30:132
978899160,1cyclictest3581-21expr21:50:152
978899160,1cyclictest0-21swapper/222:15:142
978899160,1cyclictest0-21swapper/220:30:162
978899160,15cyclictest2197-21cstates23:40:122
978899160,15cyclictest16330-21expr00:05:142
978899160,15cyclictest14090-21if_err_lxdbr019:15:172
978899160,15cyclictest0-21swapper/222:45:142
978899160,15cyclictest0-21swapper/221:10:142
978899160,15cyclictest0-21swapper/221:10:132
9783991615,1cyclictest3216-21cpuspeed_turbos21:50:141
9783991615,1cyclictest21-21ksoftirqd/119:50:141
9783991614,1cyclictest21-21ksoftirqd/123:15:141
9783991614,1cyclictest201rcuc/121:30:251
9783991614,1cyclictest0-21swapper/123:50:151
9783991614,1cyclictest0-21swapper/123:25:141
9783991614,1cyclictest0-21swapper/119:37:311
9783991614,1cyclictest0-21swapper/119:30:181
9783991613,2cyclictest399-20systemd-journal22:05:011
978399160,1cyclictest0-21swapper/123:35:141
978399160,15cyclictest25602-21if_enp1s000:20:161
978399160,15cyclictest1274-21runrttasks19:40:371
978399160,15cyclictest0-21swapper/123:45:161
978399160,15cyclictest0-21swapper/123:20:021
978399160,15cyclictest0-21swapper/121:40:101
978399160,15cyclictest0-21swapper/121:20:211
978399160,15cyclictest0-21swapper/120:55:141
978399160,15cyclictest0-21swapper/120:10:111
978399160,15cyclictest0-21swapper/100:05:101
9778991614,1cyclictest0-21swapper/023:40:120
9778991614,1cyclictest0-21swapper/022:50:130
9778991614,1cyclictest0-21swapper/022:39:000
9778991614,1cyclictest0-21swapper/021:45:130
9778991614,1cyclictest0-21swapper/020:40:160
9778991614,1cyclictest0-21swapper/020:35:100
9778991614,1cyclictest0-21swapper/020:25:210
9778991614,1cyclictest0-21swapper/020:15:160
9778991614,1cyclictest0-21swapper/019:10:130
9778991614,1cyclictest0-21swapper/000:10:110
9778991614,1cyclictest0-21swapper/000:10:110
9778991613,2cyclictest13418-21wc22:05:210
977899160,2cyclictest24026-21cat21:30:010
977899160,2cyclictest12799-21apache_processe21:10:110
977899160,2cyclictest12799-21apache_processe21:10:110
977899160,1cyclictest0-21swapper/023:10:150
977899160,1cyclictest0-21swapper/000:15:150
977899160,15cyclictest31006-21nfsd419:45:180
977899160,15cyclictest29786-21apt-get21:40:120
977899160,15cyclictest22639-21netstat19:30:180
977899160,15cyclictest18532-21ntpq20:20:200
977899160,15cyclictest12712-21cron00:00:000
977899160,15cyclictest11359-21gpgv23:00:020
977899160,15cyclictest0-21swapper/023:30:140
977899160,15cyclictest0-21swapper/022:10:140
977899160,15cyclictest0-21swapper/021:30:190
977899160,15cyclictest0-21swapper/021:05:130
9783991514,1cyclictest0-21swapper/122:40:141
9778991514,0cyclictest0-21swapper/021:55:170
977899150,1cyclictest0-21swapper/020:00:180
977899150,14cyclictest0-21swapper/023:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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