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2026-09-06 - 11:45
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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 Sun Sep 06, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11493992513,6cyclictest0-21swapper/223:15:172
11493992220,1cyclictest4035-21H222:10:212
11493992119,1cyclictest16695-21ntp_kernel_pll_21:10:182
11492992114,6cyclictest0-21swapper/121:50:201
11492992114,6cyclictest0-21swapper/121:50:191
1149199210,19cyclictest399-20systemd-journal20:00:090
1149399203,2cyclictest6060-21latency_hist21:50:002
1149399202,2cyclictest30246-21grep22:30:212
1149299209,10cyclictest0-21swapper/123:00:141
1149199203,16cyclictest3976-21H222:10:210
1149199200,19cyclictest0-21swapper/023:22:580
1149399192,16cyclictest0-21swapper/200:20:202
1149399190,2cyclictest4035-21H222:10:212
1149399190,2cyclictest3991-21H222:10:212
1149399190,18cyclictest31781-21cstates19:45:142
1149399190,18cyclictest0-21swapper/219:59:042
1149399190,16cyclictest3981-21H222:10:212
1149299192,2cyclictest3983-21H222:10:211
1149299190,2cyclictest3983-21H222:10:211
1149299190,18cyclictest0-21swapper/120:58:301
1149299190,16cyclictest4099-21H222:10:211
1149299190,16cyclictest3985-21H222:10:211
1149199193,1cyclictest9-21ksoftirqd/020:50:380
11491991917,1cyclictest0-21swapper/023:42:240
11491991916,2cyclictest24601-21munin-plugin-st20:30:000
1149199190,2cyclictest3991-21H222:10:210
1149199190,2cyclictest3976-21H222:10:210
1149199190,17cyclictest3981-21H222:10:210
1149399182,15cyclictest0-21swapper/219:51:352
11493991816,1cyclictest28-21ksoftirqd/222:45:002
11493991816,1cyclictest0-21swapper/221:18:102
11493991814,3cyclictest3979-21H222:10:212
11493991814,3cyclictest25416-21http_loadtime23:20:162
1149399181,2cyclictest3979-21H222:10:212
1149399180,3cyclictest3983-21H222:10:212
1149399180,2cyclictest5024-21if_enp1s020:50:182
1149399180,17cyclictest3979-21H222:10:212
1149399180,17cyclictest19319-21grep00:05:192
1149399180,17cyclictest0-21swapper/223:52:512
1149399180,16cyclictest26504-21grep19:35:152
1149399180,16cyclictest0-21swapper/219:17:342
1149399180,16cyclictest0-21swapper/219:17:342
1149299182,15cyclictest28428-21mailstats00:20:221
1149299182,15cyclictest0-21swapper/123:33:291
11492991817,1cyclictest21-21ksoftirqd/120:11:081
11492991816,1cyclictest21-21ksoftirqd/120:19:341
11492991816,1cyclictest0-21swapper/100:05:061
11492991814,3cyclictest3991-21H222:10:211
11492991814,3cyclictest3989-21H222:10:211
11492991814,3cyclictest3979-21H222:10:211
1149299180,3cyclictest22007-21cut21:20:211
1149299180,2cyclictest4099-21H222:10:211
1149299180,2cyclictest3987-21H222:10:211
1149299180,2cyclictest3987-21H222:10:211
1149299180,2cyclictest3985-21H222:10:211
1149299180,2cyclictest3983-21H222:10:211
1149299180,2cyclictest3979-21H222:10:211
1149299180,2cyclictest3976-21H222:10:211
1149299180,16cyclictest3976-21H222:10:211
11491991816,1cyclictest9-21ksoftirqd/021:33:330
11491991815,2cyclictest26616-21tlsmgr23:52:000
11491991814,3cyclictest3985-21H222:10:210
11491991814,3cyclictest3983-21H222:10:210
1149199181,2cyclictest3976-21H222:10:210
1149199180,17cyclictest3989-21H222:10:210
1149199180,17cyclictest3268-21grep19:50:200
1149199180,17cyclictest18642-21nfsd419:20:190
1149199180,16cyclictest3991-21H222:10:210
1149199180,16cyclictest3991-21H222:10:210
1149199180,16cyclictest3987-21H222:10:210
1149199180,16cyclictest29851-21latency_hist23:30:000
1149199180,15cyclictest4099-21H222:10:210
11493991715,1cyclictest28-21ksoftirqd/222:08:202
11493991715,1cyclictest0-21swapper/221:36:282
11493991714,2cyclictest4410-21ntp_offset00:35:202
11493991714,2cyclictest3991-21H222:10:212
11493991714,2cyclictest3989-21H222:10:212
11493991714,2cyclictest3987-21H222:10:212
11493991714,2cyclictest3987-21H222:10:212
11493991714,2cyclictest3985-21H222:10:212
11493991714,2cyclictest3981-21H222:10:212
11493991714,2cyclictest3981-21H222:10:212
11493991714,2cyclictest3976-21H222:10:212
11493991714,2cyclictest28115-21timerwakeupswit22:25:212
11493991714,2cyclictest25909-21awk20:30:182
11493991714,2cyclictest24757-21grep22:20:192
11493991714,2cyclictest21769-21sed22:15:182
11493991714,2cyclictest21769-21sed22:15:172
11493991714,2cyclictest20053-21nfsd420:20:192
11493991714,2cyclictest10905-21grep22:55:132
1149399171,15cyclictest4592chrt23:34:532
1149399170,2cyclictest6257-21cpuspeed_turbos21:50:172
1149399170,2cyclictest6257-21cpuspeed_turbos21:50:162
1149399170,2cyclictest3987-21H222:10:212
1149399170,2cyclictest3976-21H222:10:212
1149399170,2cyclictest18591-21kernelversion22:10:182
1149399170,2cyclictest14504-21snapd00:15:272
1149399170,16cyclictest8310-21tr22:50:192
1149399170,16cyclictest3991-21H222:10:212
1149399170,16cyclictest3983-21H222:10:212
1149399170,16cyclictest3981-21H222:10:212
1149399170,16cyclictest3981-21H222:10:212
1149399170,16cyclictest29025-21basename20:35:212
1149399170,16cyclictest2386-21cut20:45:172
1149399170,16cyclictest23193-21nfsd420:25:192
1149399170,16cyclictest22401-21python319:30:022
1149399170,16cyclictest22322-21ntp_kernel_pll_00:10:192
1149399170,16cyclictest12484-21fschecks_time19:10:162
1149399170,16cyclictest10804-21missed_timers21:00:182
1149399170,16cyclictest10804-21missed_timers21:00:172
1149399170,16cyclictest0-21swapper/222:42:512
1149399170,16cyclictest0-21swapper/222:02:352
11492991714,2cyclictest9138-21cstates21:55:141
11492991714,2cyclictest3987-21H222:10:211
11492991714,2cyclictest3985-21H222:10:211
11492991714,2cyclictest3983-21H222:10:211
11492991714,2cyclictest3981-21H222:10:211
11492991714,2cyclictest3976-21H222:10:211
11492991714,2cyclictest31029-21tune2fs20:40:141
11492991714,2cyclictest27882-21expr20:35:141
11492991714,2cyclictest23814-21expr21:25:141
11492991713,3cyclictest3979-21H222:10:211
11492991713,3cyclictest3976-21H222:10:211
1149299171,15cyclictest3987-21H222:10:211
1149299171,15cyclictest3985-21H222:10:211
1149299171,15cyclictest3985-21H222:10:211
1149299171,15cyclictest3976-21H222:10:211
1149299171,15cyclictest0-21swapper/119:25:151
1149299170,2cyclictest3991-21H222:10:211
1149299170,2cyclictest3989-21H222:10:211
1149299170,2cyclictest3989-21H222:10:211
1149299170,2cyclictest3987-21H222:10:211
1149299170,2cyclictest3985-21H222:10:211
1149299170,2cyclictest3976-21H222:10:211
1149299170,2cyclictest2697-21/usr/sbin/munin00:35:161
1149299170,2cyclictest26338-21expr19:35:141
1149299170,2cyclictest11550-21timerwakeupswit21:00:221
1149299170,2cyclictest11550-21timerwakeupswit21:00:211
1149299170,1cyclictest14369-21apt-get22:05:111
1149299170,1cyclictest0-21swapper/123:45:111
1149299170,16cyclictest4099-21H222:10:211
1149299170,16cyclictest3991-21H222:10:211
1149299170,16cyclictest3985-21H222:10:211
1149299170,16cyclictest3983-21H222:10:211
1149299170,16cyclictest3981-21H222:10:211
1149299170,16cyclictest1587-21sensors00:30:251
1149299170,16cyclictest14499-21snapd22:00:271
1149299170,16cyclictest14499-21snapd21:45:581
1149299170,16cyclictest0-21swapper/119:25:011
1149299170,15cyclictest3976-21H222:10:211
11491991715,1cyclictest0-21swapper/000:00:210
11491991714,2cyclictest4099-21H222:10:210
11491991714,2cyclictest4035-21H222:10:210
11491991714,2cyclictest4035-21H222:10:210
11491991714,2cyclictest3983-21H222:10:210
11491991714,2cyclictest3981-21H222:10:210
11491991714,2cyclictest3980-21H222:10:210
11491991714,2cyclictest29756-21expr21:35:140
11491991714,2cyclictest22173-21ntp_kernel_pll_21:20:200
11491991714,2cyclictest1856-21systemd-udevd21:08:520
11491991714,2cyclictest16905-21df23:05:150
11491991714,2cyclictest14550-21snapd00:10:270
11491991714,2cyclictest1300-21lxd22:52:500
11491991714,2cyclictest1035-21thermald00:35:240
11491991713,2cyclictest3976-21H222:10:210
1149199171,15cyclictest0-21swapper/019:25:140
1149199170,3cyclictest16113-21iwlist21:10:160
1149199170,2cyclictest9145-21expr21:55:150
1149199170,2cyclictest5225-21cut22:45:000
1149199170,2cyclictest4035-21H222:10:210
1149199170,2cyclictest4035-21H222:10:210
1149199170,2cyclictest3991-21H222:10:210
1149199170,2cyclictest3987-21H222:10:210
1149199170,2cyclictest3979-21H222:10:210
1149199170,2cyclictest3979-21H222:10:210
1149199170,2cyclictest22340-21cat23:15:130
1149199170,2cyclictest13855-21chrt22:04:000
1149199170,1cyclictest3979-21H222:10:210
1149199170,1cyclictest3979-21H222:10:210
1149199170,1cyclictest0-21swapper/000:20:160
1149199170,16cyclictest4035-21H222:10:210
1149199170,16cyclictest4035-21H222:10:210
1149199170,16cyclictest3983-21H222:10:210
1149199170,16cyclictest25937-21cpuspeed_turbos19:35:150
1149199170,16cyclictest18292-21ls21:15:130
1149199170,16cyclictest14549-21apache_volume19:15:130
1149199170,16cyclictest14549-21apache_volume19:15:120
1149199170,16cyclictest0-21swapper/022:59:410
1149199170,15cyclictest3989-21H222:10:210
1149199170,15cyclictest29707-21cron23:30:110
1149199170,15cyclictest0-21swapper/000:30:170
11493991614,1cyclictest0-21swapper/220:10:142
1149399160,1cyclictest4035-21H222:10:212
1149399160,15cyclictest15192-21/usr/sbin/munin00:00:132
1149399160,15cyclictest13361-21latency21:05:192
11492991614,1cyclictest3617-21open_inodes19:50:201
11492991613,2cyclictest24877-21nfsd400:15:171
1149299160,2cyclictest15924-21ntp_kernel_pll_19:15:201
1149299160,2cyclictest15924-21ntp_kernel_pll_19:15:191
1149299160,15cyclictest5708-21expr22:45:141
1149299160,15cyclictest1987-21sort23:35:161
1149299160,15cyclictest13198-21idleruntime23:55:151
11491991614,1cyclictest0-21swapper/023:35:520
1149199160,15cyclictest0-21swapper/022:30:180
1149199160,15cyclictest0-21swapper/021:00:210
1149199160,15cyclictest0-21swapper/021:00:210
1149199160,15cyclictest0-21swapper/020:15:180
1149199160,15cyclictest0-21swapper/019:30:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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