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2026-08-10 - 20:21
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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 Mon Aug 10, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2210499253,21cyclictest0-21swapper/208:23:012
2210499232,2cyclictest30850-21chrt09:19:112
2210499230,3cyclictest12965-21sed11:39:002
2210499230,2cyclictest7722-21expr09:35:122
2210499230,2cyclictest6225-21chrt10:28:152
2210499230,2cyclictest20916-21expr10:55:122
2210499230,2cyclictest1786-21basename10:20:142
2210499230,16cyclictest15957-21idleruntime-cro09:50:012
2210299230,5cyclictest0-21swapper/011:17:100
2210499222,1cyclictest0-21swapper/209:01:052
2210499222,1cyclictest0-21swapper/209:01:052
2210499221,1cyclictest0-21swapper/212:20:552
2210499220,2cyclictest9127-21date12:30:002
2210499220,2cyclictest9127-21date12:30:002
2210499220,2cyclictest5153-21cat07:35:182
2210499220,2cyclictest31178-21tune2fs10:15:132
2210499220,2cyclictest27610-21chrt12:05:062
2210499220,2cyclictest21877-21gpg-connect-age11:55:002
2210499220,2cyclictest19869-21awk09:00:012
2210499220,2cyclictest19068-21grep10:50:192
2210499220,2cyclictest18856-21expr08:00:152
2210499220,2cyclictest1064-21if_lxdbr008:25:162
2210499220,20cyclictest1522-21lxd09:40:422
2210499220,1cyclictest7886-21/usr/sbin/munin07:40:172
2210499220,1cyclictest244802chrt07:12:012
2210499220,1cyclictest0-21swapper/210:00:162
2210499220,1cyclictest0-21swapper/209:25:142
2210499220,16cyclictest7799-21tr08:35:192
2210499220,16cyclictest26363-21expr11:05:132
2210499220,16cyclictest15855-21cat07:55:122
22102992219,2cyclictest0-21swapper/011:45:000
2210499212,18cyclictest0-21swapper/210:10:012
22104992114,6cyclictest8916-21chrt10:32:562
22104992114,6cyclictest15917-21cron09:50:032
22104992114,6cyclictest15917-21cron09:50:032
22104992114,6cyclictest10308-21cat12:30:182
22104992113,7cyclictest15870-21hddtemp_smartct10:45:162
2210499211,16cyclictest27425-21seq07:19:512
2210499211,15cyclictest1581-21taskset11:18:362
2210499210,2cyclictest1582-21cut09:25:002
2210499210,2cyclictest13396-21ls07:50:162
2210499210,20cyclictest25414-21ntp_offset08:10:192
2210499210,20cyclictest23411-21ls09:05:142
2210499210,20cyclictest0-21swapper/210:00:022
2210499210,20cyclictest0-21swapper/208:42:312
2210499210,20cyclictest0-21swapper/207:20:172
2210499210,1cyclictest0-21swapper/211:20:242
2210499210,1cyclictest0-21swapper/210:35:162
2210499210,1cyclictest0-21swapper/208:20:012
2210499210,1cyclictest0-21swapper/207:25:242
2210499210,16cyclictest27574-21sort09:10:222
2210499210,15cyclictest4918-21grep09:30:142
22104992015,4cyclictest0-21swapper/207:30:542
22104992013,6cyclictest3245-21seq12:18:182
22104992013,6cyclictest13134-21http_loadtime10:40:162
22104992012,7cyclictest32510-21postgres12:10:482
2210499200,2cyclictest4168-21expr08:30:142
2210499200,2cyclictest14704-21needreboot11:40:192
2210499200,2cyclictest13444-21awk12:35:162
2210499200,1cyclictest25637-21grep10:05:152
2210499200,1cyclictest0-21swapper/211:45:152
2210499200,1cyclictest0-21swapper/208:50:232
2210499200,1cyclictest0-21swapper/208:47:082
2210499200,19cyclictest0-21swapper/211:55:192
2210499200,15cyclictest21332-21expr08:05:152
2210499200,15cyclictest0-21swapper/212:04:102
2210499200,15cyclictest0-21swapper/211:00:152
2210299200,17cyclictest0-21swapper/012:20:180
22104991913,5cyclictest3414-21master11:27:132
2210499190,18cyclictest0-21swapper/211:30:172
22103991916,2cyclictest5185-21missed_timers07:35:181
22103991916,2cyclictest5091-21ntp_kernel_pll_08:30:191
22103991914,3cyclictest399-20systemd-journal09:45:001
2210399190,1cyclictest0-21swapper/107:13:231
2210399190,18cyclictest843-21systemd-network11:48:401
2210299190,1cyclictest0-21swapper/009:35:010
22104991813,4cyclictest0-21swapper/211:10:142
2210399182,15cyclictest12648-21cpuspeed_turbos07:50:141
22103991816,1cyclictest0-21swapper/110:25:171
22103991815,2cyclictest2473-21tune2fs09:25:141
2210399181,2cyclictest18537-21cpuspeed_turbos08:00:141
2210299182,15cyclictest0-21swapper/011:11:590
22102991816,1cyclictest0-21swapper/010:10:140
22102991816,1cyclictest0-21swapper/009:50:000
22102991815,3cyclictest0-21swapper/010:20:000
22102991812,3cyclictest0-21swapper/009:16:160
2210299181,16cyclictest6959-21cpuspeed_turbos12:25:140
2210299181,16cyclictest6959-21cpuspeed_turbos12:25:140
2210299180,1cyclictest0-21swapper/012:10:220
2210299180,17cyclictest3985-21H222:10:210
2210299180,17cyclictest3985-21H222:10:210
2210299180,15cyclictest0-21swapper/010:50:140
2210399172,15cyclictest3211-21JS22:10:211
22103991717,0cyclictest0-21swapper/110:01:141
22103991715,1cyclictest0-21swapper/111:12:151
22103991715,1cyclictest0-21swapper/111:05:211
22103991714,2cyclictest8502-21df_inode11:30:151
22103991714,2cyclictest8363-21ntp_kernel_pll_07:40:191
22103991714,2cyclictest5905-21hddtemp_smartct11:25:161
22103991714,2cyclictest2938-21hddtemp_smartct11:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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