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2026-04-30 - 15:19
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Thu Apr 30, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20481993028,2cyclictest0-21swapper/111:00:011
2048199235,2cyclictest0-21swapper/112:20:151
2048199230,18cyclictest0-21swapper/107:57:041
20480992117,3cyclictest0-21swapper/007:15:020
2048199204,15cyclictest12192-21tr11:35:141
20481992017,2cyclictest20331-21ntp_kernel_pll_10:00:191
2048199200,16cyclictest4099-21H222:10:211
2048299193,2cyclictest12962-21cut10:40:002
2048299192,1cyclictest3983-21H222:10:212
2048299192,1cyclictest3983-21H222:10:212
20482991917,1cyclictest28-21ksoftirqd/208:10:112
20482991917,1cyclictest0-21swapper/209:00:002
2048299190,18cyclictest28460-21cat12:05:012
2048199193,15cyclictest21-21ksoftirqd/107:29:271
20481991917,1cyclictest0-21swapper/110:24:331
20481991914,3cyclictest3981-21H222:10:211
2048199190,18cyclictest426-21systemd-udevd09:06:521
2048199190,16cyclictest3991-21H222:10:211
2048199190,16cyclictest3985-21H222:10:211
20480991918,1cyclictest24585-21kworker/0:212:20:150
20480991915,1cyclictest0-21swapper/010:27:040
2048099191,17cyclictest5114-21grep11:20:150
2048099190,18cyclictest0-21swapper/012:16:190
2048099190,17cyclictest14693-21tr12:35:130
2048299183,1cyclictest0-21swapper/212:25:132
2048299182,15cyclictest28501-21timerwakeupswit07:20:222
20482991816,1cyclictest28-21ksoftirqd/210:13:142
20482991816,1cyclictest0-21swapper/208:43:422
20482991814,3cyclictest2129-21grep08:30:012
20482991814,3cyclictest14545-21snapd08:05:272
20482991813,1cyclictest0-21swapper/211:10:212
2048299180,2cyclictest7444-21find09:39:012
2048299180,2cyclictest3976-21H222:10:212
2048299180,17cyclictest18396-21latency09:00:172
2048299180,17cyclictest0-21swapper/208:30:112
2048299180,16cyclictest30801-21cron09:25:012
2048199182,15cyclictest0-21swapper/111:02:451
20481991816,1cyclictest28840-21timerandwakeup11:05:211
20481991816,1cyclictest0-21swapper/112:35:001
20481991815,2cyclictest3981-21H222:10:211
20481991815,2cyclictest2309-21latency_hist07:35:001
20481991815,2cyclictest19073-21awk11:45:181
20481991814,3cyclictest29169-21grep12:05:121
20481991814,3cyclictest0-21swapper/108:22:031
2048199181,16cyclictest9890-21ps08:40:181
2048199181,15cyclictest3981-21H222:10:211
2048199180,2cyclictest3981-21H222:10:211
2048199180,2cyclictest3981-21H222:10:211
2048199180,17cyclictest14505-21snapd10:45:271
2048199180,16cyclictest10572-21cut11:30:171
20480991816,1cyclictest3991-21H222:10:210
20480991815,2cyclictest7986-21cron08:40:010
20480991814,3cyclictest4035-21H222:10:210
20480991813,2cyclictest3976-21H222:10:210
2048099181,2cyclictest2128-21egrep09:30:160
2048099181,2cyclictest11947-21nfsd409:45:170
2048099180,3cyclictest14007-21python312:34:590
2048099180,17cyclictest14495-21snapd10:40:280
2048099180,17cyclictest0-21swapper/008:05:130
2048099180,16cyclictest4099-21H222:10:210
2048099180,16cyclictest25793-21nvmesmart_nvme011:00:210
2048299172,1cyclictest3983-21H222:10:212
20482991715,1cyclictest28-21ksoftirqd/207:10:412
20482991715,1cyclictest0-21swapper/211:55:172
20482991715,1cyclictest0-21swapper/210:30:002
20482991715,1cyclictest0-21swapper/210:00:292
20482991715,1cyclictest0-21swapper/208:15:172
20482991715,1cyclictest0-21swapper/207:35:232
20482991714,2cyclictest3985-21H222:10:212
20482991714,2cyclictest3983-21H222:10:212
20482991714,2cyclictest3983-21H222:10:212
20482991714,2cyclictest30610-21nfsd407:25:182
20482991714,2cyclictest25307-21kernelversion11:00:172
20482991714,2cyclictest21068-21kernelversion09:05:172
20482991713,3cyclictest3976-21H222:10:212
2048299171,15cyclictest5113-21nfsd411:20:162
2048299170,2cyclictest3976-21H222:10:212
2048299170,2cyclictest3125-21fschecks_count12:15:132
2048299170,2cyclictest27286-21cpuspeed_turbos11:05:122
2048299170,2cyclictest16595-21expr09:55:142
2048299170,2cyclictest14636-21cpuspeed_turbos12:35:122
2048299170,1cyclictest0-21swapper/212:05:142
2048299170,1cyclictest0-21swapper/211:30:122
2048299170,1cyclictest0-21swapper/210:55:202
2048299170,16cyclictest3991-21H222:10:212
2048299170,16cyclictest3989-21H222:10:212
2048299170,16cyclictest3985-21H222:10:212
2048299170,16cyclictest3977-21switchtime09:30:232
2048299170,16cyclictest28814-21/usr/sbin/munin08:20:132
2048299170,16cyclictest24082-21cpuspeed_turbos07:15:132
2048299170,16cyclictest20241-21pzem_energy10:50:182
2048299170,16cyclictest13688-21fschecks_count10:40:142
2048299170,16cyclictest10925-21cut09:45:122
2048299170,16cyclictest0-21swapper/207:55:202
20481991715,1cyclictest21-21ksoftirqd/110:54:231
20481991715,1cyclictest0-21swapper/112:25:161
20481991715,1cyclictest0-21swapper/107:15:121
20481991714,2cyclictest6233-21perf11:25:011
20481991714,2cyclictest3991-21H222:10:211
20481991714,2cyclictest3586-21nfsd409:30:211
20481991714,2cyclictest3146-21fschecks_time12:15:131
20481991714,2cyclictest28617-21vmstat07:20:241
20481991714,2cyclictest24449-21cat08:10:151
20481991714,2cyclictest24142-21sed09:10:161
20481991714,2cyclictest23059-21timerwakeupswit07:10:181
20481991714,2cyclictest15229-21expr08:55:111
20481991714,2cyclictest14648-21cpuspeed_turbos12:35:131
2048199170,3cyclictest0-21swapper/109:25:181
2048199170,2cyclictest958-21cat12:10:181
2048199170,2cyclictest4827-21chrt08:33:521
2048199170,2cyclictest4035-21H222:10:211
2048199170,1cyclictest9380-21rm07:45:021
2048199170,1cyclictest3981-21H222:10:211
2048199170,1cyclictest0-21swapper/109:15:121
2048199170,16cyclictest7472-21stat08:36:221
2048199170,16cyclictest7384-21cut10:30:001
2048199170,16cyclictest4099-21H222:10:211
2048199170,16cyclictest4099-21H222:10:211
2048199170,16cyclictest399-20systemd-journal10:43:591
2048199170,16cyclictest3989-21H222:10:211
2048199170,16cyclictest3985-21H222:10:211
2048199170,16cyclictest3976-21H222:10:211
2048199170,16cyclictest31221-21apache_accesses10:15:111
2048199170,16cyclictest3111-21/usr/sbin/munin07:35:231
2048199170,16cyclictest21992-21cstates10:06:001
2048199170,16cyclictest2069-21systemd-udevd11:28:521
2048199170,16cyclictest19897-21munin-plugin-st09:05:011
2048199170,16cyclictest1517-21lxd09:42:431
2048199170,16cyclictest10915-21basename10:35:141
20480991715,1cyclictest0-21swapper/012:10:280
20480991715,1cyclictest0-21swapper/008:51:190
20480991715,1cyclictest0-21swapper/007:18:420
20480991714,2cyclictest3976-21H222:10:210
20480991714,2cyclictest28702-21systemctl11:05:210
20480991714,2cyclictest17646-21expr09:00:130
20480991714,2cyclictest15587-21kernelversion08:55:140
20480991714,2cyclictest12146-21/usr/sbin/munin07:50:160
2048099170,2cyclictest9872-21/usr/sbin/munin08:40:190
2048099170,2cyclictest9275-21awk09:40:180
2048099170,2cyclictest455-21plymouthd07:39:540
2048099170,2cyclictest4099-21H222:10:210
2048099170,2cyclictest4099-21H222:10:210
2048099170,2cyclictest3981-21H222:10:210
2048099170,2cyclictest3213-21smartctl10:20:170
2048099170,2cyclictest21253-21cron10:05:010
2048099170,2cyclictest19245-21mailstats08:00:220
2048099170,1cyclictest0-21swapper/008:32:580
2048099170,16cyclictest6790-21cpuspeed_turbos11:25:130
2048099170,16cyclictest399-20systemd-journal10:16:590
2048099170,16cyclictest3991-21H222:10:210
2048099170,16cyclictest3985-21H222:10:210
2048099170,16cyclictest3981-21H222:10:210
2048099170,16cyclictest30138-21ls10:10:220
2048099170,16cyclictest25994-21cpuspeed_turbos12:00:130
2048099170,16cyclictest22815-21grep10:55:190
2048099170,16cyclictest22021-21/usr/sbin/munin11:50:210
2048099170,16cyclictest20222-21munin-plugin-st11:50:010
2048099170,16cyclictest19926-21nfsd410:50:150
2048099170,16cyclictest15342-21expr07:55:120
2048099170,16cyclictest14896-21smartctl09:50:190
2048099170,16cyclictest10504-21timerwakeupswit12:25:220
20482991614,1cyclictest0-21swapper/210:20:112
20482991614,1cyclictest0-21swapper/210:15:172
20482991614,1cyclictest0-21swapper/209:50:142
20482991614,1cyclictest0-21swapper/209:25:012
20482991614,1cyclictest0-21swapper/207:40:142
2048299160,2cyclictest7731-21sort11:25:162
2048299160,1cyclictest0-21swapper/211:45:002
2048299160,1cyclictest0-21swapper/209:40:142
2048299160,16cyclictest906-21strings07:30:172
2048299160,15cyclictest6504-21/usr/sbin/munin12:20:152
2048299160,15cyclictest14994-21/usr/sbin/munin11:40:152
2048299160,15cyclictest0-21swapper/211:55:012
2048299160,15cyclictest0-21swapper/211:35:152
2048299160,15cyclictest0-21swapper/210:45:152
2048299160,15cyclictest0-21swapper/209:10:122
20481991614,1cyclictest0-21swapper/112:00:131
20481991614,1cyclictest0-21swapper/111:50:171
20481991614,1cyclictest0-21swapper/110:30:131
20481991614,1cyclictest0-21swapper/110:30:121
20481991614,1cyclictest0-21swapper/109:35:151
20481991613,2cyclictest31405-21smartctl11:10:181
2048199160,1cyclictest0-21swapper/111:58:481
20480991614,1cyclictest9749-21latency_hist10:35:000
20480991614,1cyclictest9749-21latency_hist10:35:000
20480991614,1cyclictest16316-21expr10:45:130
20480991614,1cyclictest0-21swapper/012:05:020
20480991614,1cyclictest0-21swapper/011:30:120
20480991614,1cyclictest0-21swapper/010:35:200
20480991614,1cyclictest0-21swapper/009:55:170
20480991614,1cyclictest0-21swapper/009:20:190
20480991614,1cyclictest0-21swapper/007:30:010
20480991613,2cyclictest0-21swapper/011:15:130
2048099160,15cyclictest4099-21H222:10:210
2048099160,15cyclictest32744-21if_err_lxdbr008:25:160
2048099160,15cyclictest26654-21find07:20:100
2048099160,15cyclictest26511-21expr08:15:130
2048099160,15cyclictest23452-21cpuspeed_turbos08:10:110
2048099160,15cyclictest0-21swapper/011:35:190
2048099160,15cyclictest0-21swapper/011:10:170
2048099160,15cyclictest0-21swapper/009:15:140
2048099160,15cyclictest0-21swapper/008:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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