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2026-11-15 - 05:19
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Nov 15, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
842499230,5cyclictest0-21swapper/221:00:182
842499230,22cyclictest0-21swapper/219:17:172
841999230,22cyclictest0-21swapper/123:40:021
841599230,5cyclictest0-21swapper/020:06:560
841999220,4cyclictest0-21swapper/120:06:341
841599220,18cyclictest0-21swapper/020:30:000
842499214,16cyclictest3987-21H222:10:212
842499212,13cyclictest27728-21munin-run19:45:012
8424992112,0cyclictest0-21swapper/200:10:152
8419992112,8cyclictest0-21swapper/121:38:591
841999210,20cyclictest0-21swapper/119:19:081
8415992119,1cyclictest20206-21cstates19:30:150
8415992113,4cyclictest0-21swapper/019:55:110
841599210,6cyclictest16554-21apt-key22:15:010
842499202,17cyclictest1100-21snmpd19:30:152
842499200,17cyclictest7484-21apt-config22:00:012
8419992017,1cyclictest3985-21H222:10:211
842499192,2cyclictest25244-21latency_hist00:25:002
842499192,16cyclictest421-21grep21:45:172
8424991916,2cyclictest3979-21H222:10:212
8424991910,4cyclictest31609-21nfsd420:45:182
842499190,16cyclictest3985-21H222:10:212
842499190,16cyclictest3981-21H222:10:212
842499190,16cyclictest3979-21H222:10:212
841999194,11cyclictest18601-21apt-get20:25:011
8419991916,2cyclictest3979-21H222:10:211
8419991914,2cyclictest3987-21H222:10:211
8419991911,4cyclictest0-21swapper/100:20:461
8419991910,0cyclictest0-21swapper/100:10:151
841999190,16cyclictest4035-21H222:10:211
841999190,16cyclictest3989-21H222:10:211
841999190,16cyclictest3989-21H222:10:211
841999190,16cyclictest3985-21H222:10:211
841999190,16cyclictest3981-21H222:10:211
841599193,1cyclictest0-21swapper/022:56:280
841599193,14cyclictest0-21swapper/021:01:030
841599192,16cyclictest13504-21date22:10:000
841599190,18cyclictest0-21swapper/023:00:140
841599190,16cyclictest4099-21H222:10:210
841599190,16cyclictest3991-21H222:10:210
842499182,1cyclictest3981-21H222:10:212
842499182,15cyclictest0-21swapper/222:40:192
842499182,15cyclictest0-21swapper/200:35:152
8424991816,1cyclictest28-21ksoftirqd/223:50:082
8424991816,1cyclictest28-21ksoftirqd/219:48:542
8424991816,1cyclictest0-21swapper/200:34:012
8424991815,2cyclictest27727-21cpuspeed_turbos20:40:152
8424991815,2cyclictest26167-21smartctl20:35:192
8424991815,2cyclictest18464-21chrt20:24:572
8424991814,3cyclictest3987-21H222:10:212
842499180,2cyclictest3983-21H222:10:212
842499180,17cyclictest3989-21H222:10:212
842499180,17cyclictest3989-21H222:10:212
842499180,17cyclictest3981-21H222:10:212
842499180,17cyclictest25647-21expr23:25:162
842499180,17cyclictest15450-21expr21:15:142
842499180,15cyclictest3991-21H222:10:212
842499180,15cyclictest3981-21H222:10:212
841999183,14cyclictest21-21ksoftirqd/122:54:251
841999182,1cyclictest0-21swapper/123:10:011
841999182,15cyclictest3991-21H222:10:211
841999182,15cyclictest3979-21H222:10:211
8419991816,1cyclictest14273-21cat19:20:131
8419991816,1cyclictest0-21swapper/121:45:571
8419991814,3cyclictest3976-21H222:10:211
841999181,2cyclictest3989-21H222:10:211
841999181,2cyclictest12929-21tune2fs21:10:141
841999180,2cyclictest3991-21H222:10:211
841999180,2cyclictest3987-21H222:10:211
841999180,18cyclictest0-21swapper/122:17:271
841999180,17cyclictest3987-21H222:10:211
841999180,16cyclictest4035-21H222:10:211
841999180,16cyclictest3989-21H222:10:211
841999180,15cyclictest3987-21H222:10:211
841999180,15cyclictest3981-21H222:10:211
8415991818,0cyclictest0-21swapper/023:08:040
8415991816,1cyclictest0-21swapper/021:36:170
8415991816,1cyclictest0-21swapper/020:45:210
8415991815,2cyclictest19277-21perf19:30:010
8415991814,3cyclictest3987-21H222:10:210
8415991814,2cyclictest3981-21H222:10:210
841599180,3cyclictest27828-21touch19:45:010
841599180,2cyclictest4099-21H222:10:210
841599180,2cyclictest3989-21H222:10:210
841599180,17cyclictest399-20systemd-journal21:55:010
841599180,17cyclictest3987-21H222:10:210
841599180,17cyclictest3983-21H222:10:210
841599180,16cyclictest0-21swapper/023:30:170
841599180,15cyclictest3979-21H222:10:210
841599180,15cyclictest3976-21H222:10:210
842499172,1cyclictest0-21swapper/200:28:492
8424991716,1cyclictest28-21ksoftirqd/222:35:512
8424991715,1cyclictest3987-21H222:10:212
8424991715,1cyclictest0-21swapper/222:20:022
8424991715,1cyclictest0-21swapper/221:20:172
8424991715,1cyclictest0-21swapper/219:55:002
8424991714,2cyclictest9289-21expr23:55:132
8424991714,2cyclictest6564-21timerwakeupswit22:50:212
8424991714,2cyclictest4099-21H222:10:212
8424991714,2cyclictest3979-21H222:10:212
8424991714,2cyclictest3976-21H222:10:212
8424991714,2cyclictest22898-21cat22:25:132
8424991714,2cyclictest22083-21switchtime21:25:222
8424991713,3cyclictest14499-21snapd20:05:352
842499171,15cyclictest797-21cpuspeed_turbos20:50:142
842499170,2cyclictest4035-21H222:10:212
842499170,2cyclictest3985-21H222:10:212
842499170,2cyclictest3985-21H222:10:212
842499170,2cyclictest3979-21H222:10:212
842499170,2cyclictest19238-21gpgconf20:25:022
842499170,1cyclictest3987-21H222:10:212
842499170,16cyclictest8094-21appstreamcli22:00:022
842499170,16cyclictest3989-21H222:10:212
842499170,16cyclictest3981-21H222:10:212
842499170,16cyclictest3981-21H222:10:212
842499170,16cyclictest3976-21H222:10:212
842499170,16cyclictest31330-21proc_pri23:35:202
842499170,16cyclictest28082-21latency23:30:172
842499170,16cyclictest26838-21latency21:35:182
842499170,16cyclictest21603-21nvmesmart_nvme000:15:192
842499170,16cyclictest14539-21expr19:20:132
842499170,16cyclictest14500-21snapd20:30:282
842499170,16cyclictest11253-21expr20:10:142
8419991716,1cyclictest21-21ksoftirqd/123:35:231
8419991715,1cyclictest21-21ksoftirqd/119:30:201
8419991714,2cyclictest4035-21H222:10:211
8419991714,2cyclictest3991-21H222:10:211
8419991714,2cyclictest3983-21H222:10:211
8419991714,2cyclictest3979-21H222:10:211
8419991714,2cyclictest3976-21H222:10:211
8419991714,2cyclictest3976-21H222:10:211
8419991714,2cyclictest32249-21sed19:50:181
8419991714,2cyclictest27568-21cat23:30:141
8419991714,2cyclictest21704-21grep21:25:191
8419991714,2cyclictest0-21swapper/120:25:171
8419991712,3cyclictest0-21swapper/122:21:131
841999170,2cyclictest3989-21H222:10:211
841999170,2cyclictest3983-21H222:10:211
841999170,2cyclictest3979-21H222:10:211
841999170,2cyclictest3979-21H222:10:211
841999170,2cyclictest3976-21H222:10:211
841999170,2cyclictest3414-21master19:29:311
841999170,16cyclictest8203-21/usr/sbin/munin22:00:121
841999170,16cyclictest4099-21H222:10:211
841999170,16cyclictest4035-21H222:10:211
841999170,16cyclictest4035-21H222:10:211
841999170,16cyclictest3991-21H222:10:211
841999170,16cyclictest3983-21H222:10:211
841999170,16cyclictest14506-21snapd20:30:281
841999170,16cyclictest0-21swapper/119:57:131
841999170,15cyclictest3985-21H222:10:211
8415991715,1cyclictest9-21ksoftirqd/023:42:410
8415991714,2cyclictest8663-21expr22:00:150
8415991714,2cyclictest3991-21H222:10:210
8415991714,2cyclictest3987-21H222:10:210
8415991714,2cyclictest3985-21H222:10:210
8415991714,2cyclictest3976-21H222:10:210
8415991714,2cyclictest29970-21systemctl00:30:200
8415991714,2cyclictest24991-21sed21:30:210
8415991714,2cyclictest21783-21cpuspeed_turbos23:20:110
8415991714,2cyclictest20196-21apache_volume00:15:120
8415991714,2cyclictest18533-21sed00:10:170
8415991713,3cyclictest1516-21lxd23:46:510
8415991713,2cyclictest3991-21H222:10:210
8415991713,2cyclictest3979-21H222:10:210
841599171,1cyclictest3985-21H222:10:210
841599171,15cyclictest277982chrt22:33:500
841599170,3cyclictest0-21swapper/023:25:160
841599170,2cyclictest4099-21H222:10:210
841599170,2cyclictest3987-21H222:10:210
841599170,2cyclictest3979-21H222:10:210
841599170,2cyclictest3976-21H222:10:210
841599170,2cyclictest28965-21nfsd420:40:190
841599170,2cyclictest13186-21grep00:00:210
841599170,16cyclictest4099-21H222:10:210
841599170,16cyclictest3983-21H222:10:210
841599170,16cyclictest3981-21H222:10:210
841599170,16cyclictest3981-21H222:10:210
841599170,16cyclictest3979-21H222:10:210
841599170,16cyclictest3976-21H222:10:210
841599170,16cyclictest29062-21cat21:40:130
841599170,16cyclictest24465-21pzem_energy00:20:180
841599170,16cyclictest1505-21hddtemp_smartct20:50:150
841599170,16cyclictest14505-21snapd21:25:360
841599170,16cyclictest0-21swapper/019:45:180
841599170,15cyclictest0-21swapper/021:45:010
842499160,15cyclictest0-21swapper/223:20:092
8419991614,1cyclictest0-21swapper/100:25:151
841999160,15cyclictest4035-21H222:10:211
841999160,15cyclictest29781-21ps22:35:201
841999160,15cyclictest1107-21cat20:50:141
841999160,15cyclictest0-21swapper/120:55:141
841599160,1cyclictest0-21swapper/021:55:150
841599160,1cyclictest0-21swapper/020:00:210
841599160,15cyclictest18133-21chrt20:20:300
841599160,15cyclictest154352chrt20:16:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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