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2026-05-26 - 20:24
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Tue May 26, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7364992321,0cyclictest0-21swapper/109:11:561
736499230,5cyclictest0-21swapper/110:14:391
7362992220,1cyclictest1100-21snmpd10:50:180
7364992114,6cyclictest0-21swapper/109:43:391
736499210,17cyclictest0-21swapper/111:08:591
736299214,13cyclictest0-21swapper/012:15:420
736299211,5cyclictest0-21swapper/007:35:210
7365992017,2cyclictest11992-21nfsd407:15:172
7365992016,3cyclictest0-21swapper/208:24:592
736299204,15cyclictest12529-21sessionclean10:09:000
736299204,15cyclictest0-21swapper/008:05:000
736299200,17cyclictest3983-21H222:10:210
736599193,15cyclictest12091-21timerwakeupswit10:05:222
736599192,16cyclictest0-21swapper/210:30:132
7365991916,2cyclictest25730-21tr11:30:122
7365991915,3cyclictest0-21swapper/209:43:002
736599190,5cyclictest0-21swapper/210:52:202
736599190,18cyclictest3987-21H222:10:212
736599190,18cyclictest0-21swapper/211:40:202
736599190,16cyclictest3991-21H222:10:212
736499192,16cyclictest21578-21smtpd07:33:161
7364991917,1cyclictest0-21swapper/107:50:541
7364991916,2cyclictest993-21dbus-daemon09:45:201
7364991913,5cyclictest0-21swapper/109:05:171
736499190,2cyclictest3983-21H222:10:211
736499190,18cyclictest0-21swapper/107:40:051
736499190,16cyclictest4099-21H222:10:211
736299192,16cyclictest3991-21H222:10:210
736299192,16cyclictest2254-21fschecks_count11:45:140
7362991917,1cyclictest0-21swapper/011:15:080
7362991916,2cyclictest32240-21date12:40:020
736299190,16cyclictest3983-21H222:10:210
736599182,1cyclictest18224-21idleruntime-cro10:20:002
736599182,15cyclictest8959-21expr11:00:142
7365991816,1cyclictest0-21swapper/211:29:072
7365991816,1cyclictest0-21swapper/208:35:202
7365991815,2cyclictest19988-21ntpq10:20:182
7365991814,3cyclictest14506-21snapd09:00:282
7365991814,3cyclictest14506-21snapd09:00:282
7365991814,3cyclictest0-21swapper/208:46:382
736599181,1cyclictest0-21swapper/211:50:182
736599181,16cyclictest28152-21tr10:35:192
736599180,3cyclictest3987-21H222:10:212
736599180,3cyclictest30283-21sshd11:35:472
736599180,3cyclictest17777-21expr09:20:142
736599180,2cyclictest3981-21H222:10:212
736599180,2cyclictest3979-21H222:10:212
736599180,1cyclictest0-21swapper/207:29:382
736599180,17cyclictest4099-21H222:10:212
736599180,16cyclictest4099-21H222:10:212
736599180,16cyclictest3989-21H222:10:212
736599180,16cyclictest3989-21H222:10:212
736499182,15cyclictest249772sleep111:27:391
736499182,15cyclictest11666-21uname12:00:201
736499182,15cyclictest11666-21uname12:00:201
7364991817,1cyclictest21-21ksoftirqd/109:51:001
7364991816,1cyclictest21-21ksoftirqd/112:31:091
7364991815,2cyclictest3979-21H222:10:211
7364991815,2cyclictest1103-21ntpd12:10:201
7364991815,2cyclictest0-21swapper/110:43:131
7364991814,3cyclictest4099-21H222:10:211
7364991814,3cyclictest4035-21H222:10:211
7364991814,3cyclictest4035-21H222:10:211
7364991814,3cyclictest0-21swapper/110:55:071
7364991814,2cyclictest0-21swapper/111:12:291
7364991812,3cyclictest0-21swapper/107:18:031
736499181,16cyclictest5753-21date10:55:011
736499180,2cyclictest3983-21H222:10:211
736499180,17cyclictest843-21systemd-network11:03:241
736499180,17cyclictest3987-21H222:10:211
736499180,17cyclictest25729-21grep11:30:121
736499180,16cyclictest3991-21H222:10:211
736499180,16cyclictest3976-21H222:10:211
736499180,16cyclictest14043-21cpuspeed_turbos07:20:141
736499180,15cyclictest3985-21H222:10:211
736299182,15cyclictest9-21ksoftirqd/010:15:190
736299182,15cyclictest147552chrt08:15:560
7362991816,1cyclictest0-21swapper/011:09:410
7362991814,3cyclictest22231-21irqstats10:25:150
7362991814,2cyclictest3991-21H222:10:210
736299181,2cyclictest22088-21chrt11:20:250
736299181,16cyclictest10340-21grep12:00:130
736299181,16cyclictest10340-21grep12:00:130
736299180,3cyclictest878-21in:imuxsock09:38:590
736299180,2cyclictest4035-21H222:10:210
736299180,2cyclictest3987-21H222:10:210
736299180,2cyclictest3987-21H222:10:210
736299180,2cyclictest3983-21H222:10:210
736299180,2cyclictest3981-21H222:10:210
736299180,17cyclictest28966-21needreboot07:45:180
736299180,17cyclictest21401-21tr12:20:130
736299180,15cyclictest3985-21H222:10:210
7365991715,1cyclictest28-21ksoftirqd/209:51:582
7365991715,1cyclictest0-21swapper/208:40:132
7365991714,2cyclictest4099-21H222:10:212
7365991714,2cyclictest25952-21vmstat12:25:202
7365991714,2cyclictest25952-21vmstat12:25:192
7365991714,2cyclictest14605-21timerwakeupswit08:15:212
7365991714,2cyclictest11550-21ntp_offset12:00:182
7365991714,2cyclictest11550-21ntp_offset12:00:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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