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2026-06-13 - 16:10
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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 Jun 13, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2394999240,4cyclictest5039-21dpkg08:26:312
2394399240,19cyclictest3759-21cpuspeed_turbos07:30:141
2394999232,6cyclictest26279-21cut10:05:012
23949992312,6cyclictest399-20systemd-journal10:54:552
2394999231,21cyclictest0-21swapper/207:26:022
2394999224,17cyclictest0-21swapper/209:06:452
23949992214,7cyclictest3987-21H222:10:212
2394999220,3cyclictest8458-21smtp07:37:452
2394999220,2cyclictest9835-21ntp_states11:25:202
2394999220,2cyclictest8742-21chrt10:29:232
2394999220,2cyclictest32608-21cat11:10:142
2394999220,2cyclictest3024-21grep12:10:202
2394999220,2cyclictest22164-21cut11:50:002
2394999220,21cyclictest5611-21fschecks_count12:15:152
2394999220,21cyclictest29185-21cpu08:15:132
2394999220,1cyclictest138572sleep211:35:062
2394999220,1cyclictest0-21swapper/208:20:152
2394399220,18cyclictest0-21swapper/108:49:221
23949992114,6cyclictest6267-21expr08:30:142
23949992114,6cyclictest21147-21cpuspeed_turbos09:55:122
23949992113,7cyclictest32027-21ntp_states09:15:182
2394999210,2cyclictest8545-21grep09:30:182
2394999210,2cyclictest5769-21python310:25:012
2394999210,2cyclictest3976-21H222:10:212
2394999210,2cyclictest30816-21expr12:05:132
2394999210,2cyclictest28885-21taskset11:05:032
2394999210,2cyclictest19370-21sed09:50:182
2394999210,2cyclictest18360-21pzem_voltage08:50:182
2394999210,2cyclictest13522-21mailstats07:45:222
2394999210,2cyclictest10579-21ntpq10:30:172
2394999210,20cyclictest3450-21gsd-color08:35:172
2394999210,20cyclictest0-21swapper/209:10:112
2394999210,1cyclictest16335-21expr12:35:122
2394999210,1cyclictest0-21swapper/212:00:202
2394999210,1cyclictest0-21swapper/211:55:172
2394999210,1cyclictest0-21swapper/211:30:182
2394999210,1cyclictest0-21swapper/211:30:182
2394999210,1cyclictest0-21swapper/210:40:232
2394999210,1cyclictest0-21swapper/210:40:232
2394999210,1cyclictest0-21swapper/210:35:152
2394999210,1cyclictest0-21swapper/210:20:012
2394999210,1cyclictest0-21swapper/209:45:142
2394999210,1cyclictest0-21swapper/209:40:142
2394999210,1cyclictest0-21swapper/209:35:212
2394999210,1cyclictest0-21swapper/208:55:152
2394999210,1cyclictest0-21swapper/208:40:162
2394999210,1cyclictest0-21swapper/208:00:132
2394999210,1cyclictest0-21swapper/207:20:232
2394999210,16cyclictest3311-21grep09:20:212
2394999210,16cyclictest27320-21uname08:10:192
2394999210,16cyclictest14991-21cat12:30:202
2394999210,15cyclictest285152chrt10:05:282
2394999210,15cyclictest0-21swapper/210:45:172
23949992017,2cyclictest18684-21nfsd407:55:192
23949992014,5cyclictest0-21swapper/210:55:172
2394999200,2cyclictest9817-21expr07:40:152
2394999200,2cyclictest3353-21df11:15:142
2394999200,2cyclictest32267-21apt-config10:15:012
2394999200,1cyclictest23493-21awk09:00:172
2394999200,1cyclictest11826-21ntp_kernel_pll_12:25:182
2394999200,1cyclictest0-21swapper/212:24:172
2394999200,1cyclictest0-21swapper/211:40:142
2394999200,1cyclictest0-21swapper/211:20:152
2394999200,1cyclictest0-21swapper/208:45:152
2394999200,1cyclictest0-21swapper/207:15:142
2394999200,19cyclictest4099-21H222:10:212
2394999200,19cyclictest0-21swapper/208:05:212
2394999200,19cyclictest0-21swapper/208:05:212
2394999200,19cyclictest0-21swapper/207:50:172
2394999200,15cyclictest68272chrt09:29:482
2394399204,15cyclictest0-21swapper/110:29:101
2394399203,2cyclictest17158-21cron10:45:001
2394399203,2cyclictest17158-21cron10:45:001
2394399203,16cyclictest14496-21snapd10:03:121
23943992017,2cyclictest32197-21apt-key10:15:011
2394399192,2cyclictest3983-21H222:10:211
23943991916,2cyclictest19720-21seq10:47:551
23943991913,5cyclictest3981-21H222:10:211
2394399190,1cyclictest0-21swapper/110:20:141
2394399190,18cyclictest0-21swapper/112:30:031
2394399190,16cyclictest3991-21H222:10:211
2394399190,16cyclictest3987-21H222:10:211
2394399190,16cyclictest3983-21H222:10:211
2394399190,16cyclictest3981-21H222:10:211
2394099193,2cyclictest0-21swapper/008:40:110
2394099193,15cyclictest15736-21expr08:45:220
2394099193,15cyclictest0-21swapper/009:49:280
23940991914,5cyclictest0-21swapper/007:45:010
2394099190,5cyclictest0-21swapper/009:16:200
2394099190,17cyclictest4023-21PluginScanner12:40:000
23949991814,3cyclictest0-21swapper/207:30:222
2394399182,15cyclictest21-21ksoftirqd/109:28:071
2394399182,15cyclictest0-21swapper/110:18:361
2394399182,15cyclictest0-21swapper/108:54:431
2394399182,15cyclictest0-21swapper/108:00:381
23943991816,1cyclictest3979-21H222:10:211
23943991816,1cyclictest21-21ksoftirqd/109:39:571
23943991815,2cyclictest8899-21switchtime09:30:211
23943991814,3cyclictest3981-21H222:10:211
2394399181,2cyclictest4099-21H222:10:211
2394399181,2cyclictest14123-21grep09:40:181
2394399180,3cyclictest3976-21H222:10:211
2394399180,2cyclictest4035-21H222:10:211
2394399180,2cyclictest3987-21H222:10:211
2394399180,2cyclictest3981-21H222:10:211
2394399180,2cyclictest3976-21H222:10:211
2394399180,2cyclictest3976-21H222:10:211
2394399180,1cyclictest3989-21H222:10:211
2394399180,17cyclictest4035-21H222:10:211
2394399180,17cyclictest3989-21H222:10:211
2394399180,16cyclictest4035-21H222:10:211
2394399180,16cyclictest3991-21H222:10:211
2394399180,16cyclictest3976-21H222:10:211
2394099183,1cyclictest9-21ksoftirqd/007:32:140
2394099182,15cyclictest0-21swapper/010:11:550
23940991815,2cyclictest3976-21H222:10:210
23940991813,3cyclictest399-20systemd-journal08:55:010
2394099181,2cyclictest7822-21cpuspeed_turbos12:20:130
2394099181,16cyclictest30351-21uname08:15:170
2394099181,16cyclictest23627-21nfsd409:00:170
2394099180,2cyclictest4099-21H222:10:210
2394099180,2cyclictest3981-21H222:10:210
2394099180,2cyclictest3976-21H222:10:210
2394099180,1cyclictest0-21swapper/011:55:000
2394099180,17cyclictest3985-21H222:10:210
2394099180,17cyclictest3985-21H222:10:210
2394099180,17cyclictest3983-21H222:10:210
2394099180,16cyclictest3979-21H222:10:210
2394099180,16cyclictest17699-21grep10:45:130
2394099180,15cyclictest3987-21H222:10:210
2394099180,15cyclictest3979-21H222:10:210
23943991715,1cyclictest6337-21apache_accesses07:35:121
23943991714,2cyclictest8033-21perf11:25:001
23943991714,2cyclictest25131-21tr11:55:131
23943991714,1cyclictest0-21swapper/108:11:261
2394399171,2cyclictest3983-21H222:10:211
2394399171,15cyclictest3304-21expr11:15:131
2394399170,2cyclictest4099-21H222:10:211
2394399170,2cyclictest4035-21H222:10:211
2394399170,2cyclictest4035-21H222:10:211
2394399170,2cyclictest28424-21https11:05:011
2394399170,1cyclictest0-21swapper/112:00:161
2394399170,1cyclictest0-21swapper/110:06:031
2394399170,1cyclictest0-21swapper/108:35:131
2394399170,16cyclictest9191-21idleruntime11:25:161
2394399170,16cyclictest4099-21H222:10:211
2394399170,16cyclictest3983-21H222:10:211
2394399170,16cyclictest3981-21H222:10:211
2394399170,16cyclictest3981-21H222:10:211
2394399170,16cyclictest31826-21grep12:05:181
2394399170,16cyclictest31668-21latency_hist08:20:011
2394399170,16cyclictest18341-21sed11:40:201
2394399170,16cyclictest0-21swapper/109:50:441
23940991716,1cyclictest9-21ksoftirqd/008:06:160
23940991716,1cyclictest9-21ksoftirqd/008:06:150
23940991715,1cyclictest0-21swapper/011:20:120
23940991714,2cyclictest4749-21ntpq10:20:200
23940991714,2cyclictest3989-21H222:10:210
23940991714,2cyclictest3985-21H222:10:210
23940991714,2cyclictest3979-21H222:10:210
23940991714,2cyclictest3976-21H222:10:210
23940991714,2cyclictest19794-21sh08:00:000
23940991714,2cyclictest16031-21grep07:50:180
23940991714,2cyclictest1500-21apache_volume12:10:110
23940991714,2cyclictest1104-21apt-key09:20:010
23940991713,3cyclictest4035-21H222:10:210
23940991713,3cyclictest3983-21H222:10:210
2394099170,2cyclictest3981-21H222:10:210
2394099170,2cyclictest3981-21H222:10:210
2394099170,2cyclictest14549-21sort09:40:210
2394099170,2cyclictest1348-21lxd10:58:430
2394099170,2cyclictest10494-21chrt11:26:560
2394099170,2cyclictest10236-21grep09:35:140
2394099170,1cyclictest4035-21H222:10:210
2394099170,1cyclictest0-21swapper/008:37:420
2394099170,1cyclictest0-21swapper/008:34:250
2394099170,16cyclictest8415-21needreboot09:30:180
2394099170,16cyclictest650-21expr10:15:130
2394099170,16cyclictest4851-21rm12:15:020
2394099170,16cyclictest4561-21/usr/sbin/munin09:25:130
2394099170,16cyclictest4035-21H222:10:210
2394099170,16cyclictest3985-21H222:10:210
2394099170,16cyclictest3983-21H222:10:210
2394099170,16cyclictest3983-21H222:10:210
2394099170,16cyclictest3983-21H222:10:210
2394099170,16cyclictest3983-21H222:10:210
2394099170,16cyclictest3981-21H222:10:210
2394099170,16cyclictest3981-21H222:10:210
2394099170,16cyclictest3981-21H222:10:210
2394099170,16cyclictest28759-21python311:05:010
2394099170,16cyclictest28004-21lxd10:54:430
2394099170,16cyclictest0-21swapper/012:06:130
2394099170,15cyclictest3983-21H222:10:210
2394099170,15cyclictest3983-21H222:10:210
23943991614,1cyclictest3976-21H222:10:211
23943991614,1cyclictest0-21swapper/111:30:051
23943991614,1cyclictest0-21swapper/111:30:051
23943991614,1cyclictest0-21swapper/109:20:151
23943991613,2cyclictest3954-21VM22:10:211
2394399160,1cyclictest0-21swapper/107:50:141
2394399160,15cyclictest0-21swapper/110:35:141
2394399160,15cyclictest0-21swapper/108:05:131
2394399160,15cyclictest0-21swapper/108:05:131
23940991614,1cyclictest0-21swapper/008:25:220
23940991614,1cyclictest0-21swapper/008:00:220
23940991614,1cyclictest0-21swapper/007:25:140
2394099160,15cyclictest25222-21ntpq10:00:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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