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2026-06-07 - 21:15
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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 Sun Jun 07, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14891992422,1cyclictest28-21ksoftirqd/210:40:152
1487999220,4cyclictest0-21swapper/012:15:010
1487999212,1cyclictest0-21swapper/010:42:150
1489199200,17cyclictest0-21swapper/209:50:142
1489199200,17cyclictest0-21swapper/209:50:142
1488499204,15cyclictest21-21ksoftirqd/108:35:431
14884992017,2cyclictest6225-21php7.011:39:001
14884992012,3cyclictest0-21swapper/107:35:321
1488499200,4cyclictest0-21swapper/110:47:531
1487999201,18cyclictest22385-21cpuspeed_turbos11:10:130
14891991917,1cyclictest0-21swapper/210:53:062
14891991917,1cyclictest0-21swapper/208:34:272
14891991917,1cyclictest0-21swapper/208:34:262
14891991916,2cyclictest3991-21H222:10:212
1489199190,18cyclictest3991-21H222:10:212
1488499193,15cyclictest0-21swapper/107:10:191
1488499192,16cyclictest0-21swapper/110:25:121
1488499190,18cyclictest14496-21snapd11:10:281
1488499190,16cyclictest3989-21H222:10:211
1487999198,10cyclictest0-21swapper/010:50:450
14879991917,1cyclictest0-21swapper/010:24:300
1487999191,17cyclictest9-21ksoftirqd/009:07:570
1487999190,2cyclictest4035-21H222:10:210
1487999190,1cyclictest0-21swapper/011:37:260
1487999190,1cyclictest0-21swapper/009:43:450
1489199182,15cyclictest3987-21H222:10:212
1489199182,15cyclictest28-21ksoftirqd/210:10:122
1489199182,15cyclictest27888-21latency09:25:162
1489199182,15cyclictest11587-21chrt11:46:212
14891991815,2cyclictest3989-21H222:10:212
14891991814,3cyclictest3351-21lxd11:20:422
14891991814,2cyclictest4099-21H222:10:212
1489199181,16cyclictest3989-21H222:10:212
1489199180,3cyclictest3845-21uname12:30:172
1489199180,2cyclictest3985-21H222:10:212
1489199180,2cyclictest3976-21H222:10:212
1489199180,17cyclictest4099-21H222:10:212
1489199180,17cyclictest4035-21H222:10:212
1489199180,17cyclictest14505-21snapd11:57:572
1489199180,16cyclictest5801-21munin-plugin-st09:45:012
1488499182,1cyclictest7057-21grep11:40:121
1488499182,15cyclictest20563-21cat10:10:001
1488499182,15cyclictest195472chrt12:00:211
1488499182,15cyclictest17963-21nfsd408:10:181
1488499182,15cyclictest0-21swapper/109:32:251
14884991816,1cyclictest0-21swapper/112:20:591
14884991816,1cyclictest0-21swapper/110:15:141
14884991816,1cyclictest0-21swapper/108:17:031
14884991814,3cyclictest3985-21H222:10:211
14884991814,3cyclictest3857-21fschecks_count09:40:131
14884991814,2cyclictest3991-21H222:10:211
14884991814,2cyclictest3981-21H222:10:211
1488499181,16cyclictest7603-21chrt12:37:531
1488499181,16cyclictest30202-21chrt08:32:531
1488499181,16cyclictest30202-21chrt08:32:531
1488499180,2cyclictest4035-21H222:10:211
1488499180,2cyclictest3987-21H222:10:211
1488499180,2cyclictest3985-21H222:10:211
1488499180,2cyclictest11855-21cron11:50:001
1488499180,16cyclictest10710-21munin-run08:00:001
1488499180,15cyclictest0-21swapper/110:20:201
1487999182,15cyclictest271782sleep011:18:320
14879991815,2cyclictest11046-21chrt09:54:220
14879991815,2cyclictest11046-21chrt09:54:220
14879991814,3cyclictest4035-21H222:10:210
14879991814,3cyclictest3991-21H222:10:210
14879991814,3cyclictest3985-21H222:10:210
14879991814,3cyclictest3976-21H222:10:210
14879991814,3cyclictest0-21swapper/007:23:370
1487999180,3cyclictest1351-21lxd09:10:420
1487999180,17cyclictest23077-21munin-plugin-st12:10:000
1489199172,1cyclictest28-21ksoftirqd/210:48:342
14891991715,1cyclictest14408-21sed09:00:202
14891991715,1cyclictest0-21swapper/207:50:132
14891991715,1cyclictest0-21swapper/207:46:142
14891991714,2cyclictest9611-21nfsd407:55:182
14891991714,2cyclictest4546-21cpuspeed_turbos08:45:142
14891991714,2cyclictest3991-21H222:10:212
14891991714,2cyclictest3989-21H222:10:212
14891991714,2cyclictest3987-21H222:10:212
14891991714,2cyclictest3985-21H222:10:212
14891991714,2cyclictest3976-21H222:10:212
14891991714,2cyclictest20563-21cpuspeed_turbos12:05:142
14891991714,2cyclictest19258-21nfsd407:15:182
14891991714,2cyclictest18108-21ps11:00:192
14891991714,2cyclictest1300-21lxd11:18:422
14891991714,2cyclictest11922-21/usr/sbin/munin09:55:122
14891991714,2cyclictest0-21swapper/212:15:212
14891991714,1cyclictest4099-21H222:10:212
14891991714,1cyclictest0-21swapper/211:50:182
1489199171,2cyclictest29157-21expr07:35:142
1489199170,2cyclictest8310-21smtpd09:49:512
1489199170,2cyclictest4035-21H222:10:212
1489199170,2cyclictest3987-21H222:10:212
1489199170,2cyclictest3981-21H222:10:212
1489199170,2cyclictest26590-21cat07:30:142
1489199170,2cyclictest11129-21needreboot08:55:172
1489199170,16cyclictest4443-21expr11:35:132
1489199170,16cyclictest4099-21H222:10:212
1489199170,16cyclictest4035-21H222:10:212
1489199170,16cyclictest3985-21H222:10:212
1489199170,16cyclictest26321-21chrt09:25:002
1489199170,16cyclictest24142-21idleruntime12:10:152
1489199170,16cyclictest23703-21expr07:25:142
1489199170,16cyclictest21498-21chrt11:07:452
1489199170,16cyclictest2093-21nfsd411:30:182
1489199170,16cyclictest16464-21nfsd407:10:192
1489199170,16cyclictest0-21swapper/210:55:142
1488499172,15cyclictest21-21ksoftirqd/109:07:461
14884991715,1cyclictest22465-21cpuspeed_turbos08:20:151
14884991714,2cyclictest3985-21H222:10:211
14884991714,2cyclictest3976-21H222:10:211
14884991714,2cyclictest32173-21grep12:25:131
14884991714,2cyclictest3099-21awk07:45:171
14884991714,2cyclictest21090-21df12:05:151
14884991714,2cyclictest20694-21awk11:05:181
14884991714,2cyclictest0-21swapper/107:30:181
14884991714,1cyclictest0-21swapper/109:50:371
14884991714,1cyclictest0-21swapper/109:50:361
14884991713,3cyclictest1079-21cups-browsed09:25:181
1488499171,2cyclictest3989-21H222:10:211
1488499170,2cyclictest5181-21http_loadtime08:45:151
1488499170,2cyclictest4035-21H222:10:211
1488499170,2cyclictest3985-21H222:10:211
1488499170,2cyclictest3985-21H222:10:211
1488499170,2cyclictest3981-21H222:10:211
1488499170,2cyclictest3981-21H222:10:211
1488499170,2cyclictest22993-21chrt10:14:491
1488499170,2cyclictest19865-21pzem_voltage09:10:201
1488499170,2cyclictest18838-21interrupts07:15:181
1488499170,1cyclictest0-21swapper/110:55:081
1488499170,16cyclictest3991-21H222:10:211
1488499170,16cyclictest3981-21H222:10:211
1488499170,16cyclictest3976-21H222:10:211
1488499170,16cyclictest27650-21pzem_power12:15:201
1488499170,16cyclictest25471-21sed09:20:191
1488499170,16cyclictest22096-21smartctl07:20:181
1488499170,16cyclictest14500-21snapd11:55:461
14879991717,0cyclictest0-21swapper/008:41:530
14879991715,1cyclictest18783-21chrt08:11:310
14879991715,1cyclictest0-21swapper/009:45:180
14879991714,2cyclictest7520-21timerwakeupswit07:50:220
14879991714,2cyclictest4099-21H222:10:210
14879991714,2cyclictest4035-21H222:10:210
14879991714,2cyclictest3976-21H222:10:210
14879991714,2cyclictest3450-21gsd-color11:04:590
14879991713,3cyclictest3976-21H222:10:210
1487999171,15cyclictest4036-21H222:10:210
1487999171,15cyclictest1035-21thermald10:05:200
1487999170,2cyclictest32353-21df07:40:140
1487999170,2cyclictest31201-21chrt10:29:460
1487999170,2cyclictest2069-21systemd-udevd12:18:520
1487999170,2cyclictest2069-21systemd-udevd08:38:510
1487999170,2cyclictest14495-21snapd08:25:280
1487999170,2cyclictest14398-21sed09:00:210
1487999170,2cyclictest10784-21grep11:45:180
1487999170,1cyclictest3981-21H222:10:210
1487999170,16cyclictest4035-21H222:10:210
1487999170,16cyclictest3605-21/usr/sbin/munin12:30:170
1487999170,16cyclictest29257-21cat07:35:150
1487999170,16cyclictest2872-21systemd-logind08:22:510
1487999170,16cyclictest21217-21cat11:05:220
1487999170,16cyclictest17532-21latency_hist12:00:010
1487999170,16cyclictest13500-21awk11:50:170
1487999170,16cyclictest0-21swapper/007:30:130
1487999170,16cyclictest0-21swapper/007:10:180
1487999170,15cyclictest3976-21H222:10:210
14891991614,1cyclictest0-21swapper/208:10:212
1489199160,1cyclictest3981-21H222:10:212
1489199160,15cyclictest22185-21missed_timers09:15:172
1489199160,15cyclictest20057-21grep09:10:212
1489199160,15cyclictest13825-21/usr/sbin/munin08:05:152
1489199160,15cyclictest0-21swapper/211:40:122
1489199160,15cyclictest0-21swapper/210:00:122
14884991614,1cyclictest0-21swapper/111:20:171
14884991614,1cyclictest0-21swapper/108:55:141
14884991613,2cyclictest24491-21sed07:25:161
14884991613,2cyclictest14738-21if_lxdbr008:05:171
14884991613,2cyclictest11849-21apt-key09:55:021
1488499160,1cyclictest12518-21cpuspeed_turbos11:50:141
1488499160,15cyclictest27093-21chrt11:17:211
1488499160,15cyclictest0-21swapper/109:15:151
1488499160,15cyclictest0-21swapper/107:40:221
14879991614,1cyclictest14894-21sed08:05:170
14879991614,1cyclictest0-21swapper/011:26:210
14879991614,1cyclictest0-21swapper/011:20:140
14879991614,1cyclictest0-21swapper/010:15:130
14879991614,1cyclictest0-21swapper/009:25:000
14879991614,1cyclictest0-21swapper/009:15:180
14879991614,1cyclictest0-21swapper/007:15:150
14879991613,2cyclictest3976-21H222:10:210
14879991613,1cyclictest0-21swapper/012:20:150
14879991612,3cyclictest4099-21H222:10:210
1487999161,1cyclictest22120-21sh10:10:160
1487999160,1cyclictest13877-21apache_processe10:55:120
1487999160,15cyclictest9796-21/usr/sbin/munin10:45:180
1487999160,15cyclictest3991-21H222:10:210
1487999160,15cyclictest14496-21snapd11:33:250
1487999160,15cyclictest0-21swapper/008:30:200
1487999160,15cyclictest0-21swapper/008:30:190
1487999160,15cyclictest0-21swapper/007:45:140
1487999160,15cyclictest0-21swapper/007:25:170
1487999150,14cyclictest0-21swapper/008:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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