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2026-08-15 - 00:09
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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 Fri Aug 14, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28121993331,2cyclictest0-21swapper/112:05:211
28121993129,2cyclictest0-21swapper/110:00:131
28121993029,0cyclictest0-21swapper/108:45:191
28121993028,2cyclictest0-21swapper/112:28:291
28121992827,0cyclictest0-21swapper/107:35:401
28121992617,0cyclictest0-21swapper/112:13:331
2812199250,20cyclictest13273-21wc07:40:121
2812399240,11cyclictest0-21swapper/212:39:262
2812099244,11cyclictest12924-21sed09:35:020
2812399222,17cyclictest0-21swapper/208:30:012
2812199214,1cyclictest4099-21H222:10:211
2812199214,16cyclictest3983-21H222:10:211
2812199214,11cyclictest0-21swapper/107:23:521
2812099217,13cyclictest0-21swapper/009:29:050
2812199200,19cyclictest0-21swapper/108:50:131
2812099204,15cyclictest0-21swapper/009:10:030
28120992020,0cyclictest0-21swapper/007:20:170
2812399193,2cyclictest3989-21H222:10:212
2812399192,16cyclictest28149-21cat10:00:132
28123991917,1cyclictest0-21swapper/211:20:232
28123991914,2cyclictest3981-21H222:10:212
2812399190,2cyclictest3979-21H222:10:212
2812399190,2cyclictest0-21swapper/211:48:062
2812399190,17cyclictest3991-21H222:10:212
2812399190,16cyclictest3983-21H222:10:212
2812399190,16cyclictest3981-21H222:10:212
2812399190,16cyclictest3981-21H222:10:212
2812199192,3cyclictest0-21swapper/109:45:011
2812199192,2cyclictest17777-21expr11:35:131
2812199192,16cyclictest1206-21chrt09:11:291
28121991917,1cyclictest0-21swapper/112:23:461
28121991916,2cyclictest4582-21processes08:20:211
28121991914,4cyclictest9965-21cat07:35:011
28121991914,2cyclictest3989-21H222:10:211
2812199190,18cyclictest4659-21apache_processe07:25:151
2812199190,18cyclictest25480-21idleruntime-cro09:00:011
2812199190,18cyclictest25480-21idleruntime-cro09:00:001
2812199190,16cyclictest3989-21H222:10:211
2812099193,15cyclictest9-21ksoftirqd/007:47:450
28120991917,1cyclictest9-21ksoftirqd/010:55:000
2812099190,2cyclictest3989-21H222:10:210
2812099190,2cyclictest3985-21H222:10:210
2812099190,16cyclictest4035-21H222:10:210
2812399182,2cyclictest1447-21cat10:10:152
2812399182,2cyclictest1447-21cat10:10:142
28123991818,0cyclictest0-21swapper/207:10:182
28123991816,1cyclictest445-21ntp_states12:00:192
28123991815,2cyclictest28463-21ntpq10:55:192
28123991814,3cyclictest3985-21H222:10:212
28123991814,3cyclictest3976-21H222:10:212
28123991813,2cyclictest3987-21H222:10:212
2812399180,3cyclictest5255-21cut12:10:132
2812399180,2cyclictest4035-21H222:10:212
2812399180,2cyclictest3987-21H222:10:212
2812399180,17cyclictest4099-21H222:10:212
2812399180,17cyclictest3991-21H222:10:212
2812399180,16cyclictest3976-21H222:10:212
2812399180,15cyclictest3987-21H222:10:212
2812199182,15cyclictest21-21ksoftirqd/108:26:101
28121991813,2cyclictest3983-21H222:10:211
2812199180,2cyclictest5156-21cpuspeed_turbos09:20:131
2812199180,2cyclictest5156-21cpuspeed_turbos09:20:131
2812199180,2cyclictest4099-21H222:10:211
2812199180,2cyclictest4099-21H222:10:211
2812199180,2cyclictest3979-21H222:10:211
2812199180,2cyclictest3979-21H222:10:211
2812199180,2cyclictest3979-21H222:10:211
2812199180,2cyclictest0-21swapper/112:35:441
2812199180,17cyclictest9598-21grep11:20:131
2812199180,16cyclictest14501-21snapd11:00:151
2812199180,15cyclictest3981-21H222:10:211
2812099183,1cyclictest9-21ksoftirqd/011:13:140
2812099182,15cyclictest9-21ksoftirqd/010:58:300
28120991816,1cyclictest9-21ksoftirqd/008:40:520
28120991816,1cyclictest9-21ksoftirqd/008:36:290
28120991814,3cyclictest3987-21H222:10:210
28120991814,3cyclictest2957-21rtkit-daemon07:36:430
28120991814,3cyclictest2007-21systemd-journal09:39:010
28120991814,2cyclictest3991-21H222:10:210
2812099180,2cyclictest4099-21H222:10:210
2812099180,2cyclictest3989-21H222:10:210
2812099180,2cyclictest3981-21H222:10:210
2812099180,2cyclictest3976-21H222:10:210
2812099180,17cyclictest3979-21H222:10:210
2812099180,16cyclictest3989-21H222:10:210
2812099180,16cyclictest3979-21H222:10:210
2812099180,15cyclictest3979-21H222:10:210
28123991715,1cyclictest0-21swapper/207:20:202
28123991714,2cyclictest6407-21grep09:20:192
28123991714,2cyclictest6407-21grep09:20:182
28123991714,2cyclictest3991-21H222:10:212
28123991714,2cyclictest3987-21H222:10:212
28123991714,2cyclictest3976-21H222:10:212
28123991714,2cyclictest3976-21H222:10:212
28123991714,2cyclictest31725-21ntp_kernel_pll_11:00:192
28123991714,2cyclictest26599-21df_inode11:50:132
28123991714,2cyclictest26599-21df_inode11:50:132
28123991714,2cyclictest23548-21needreboot09:50:172
28123991714,2cyclictest22532-21grep07:55:192
28123991714,2cyclictest16448-21pzem_current11:30:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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