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2026-04-17 - 23:45
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Fri Apr 17, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7293993322,10cyclictest26259-21cut08:40:011
729299254,6cyclictest0-21swapper/008:29:190
729599230,5cyclictest0-21swapper/208:15:262
729599230,18cyclictest0-21swapper/210:14:432
729399230,20cyclictest0-21swapper/111:35:071
729299232,15cyclictest0-21swapper/010:44:530
7292992314,8cyclictest1829-21systemd-journal07:17:010
729299230,22cyclictest579-21missed_timers10:45:170
729299230,15cyclictest672-21chrt11:40:310
729599225,16cyclictest15773-21nfsd411:10:172
729599220,4cyclictest0-21swapper/207:55:242
7292992215,6cyclictest22644-21chrt10:29:440
729299220,2cyclictest24567-21grep12:25:150
729299220,21cyclictest9130-21df11:00:130
729299220,1cyclictest12000-21apt-get08:15:120
729299220,16cyclictest15111-21awk09:15:190
729599213,17cyclictest0-21swapper/212:20:002
729599212,18cyclictest0-21swapper/211:20:142
729599212,18cyclictest0-21swapper/211:20:142
7295992118,2cyclictest3996-21taskset11:48:002
7295992118,2cyclictest30992-21date09:45:152
7295992118,2cyclictest18658-21chrt09:23:462
7295992118,2cyclictest16121-21ntp_kernel_pll_08:20:182
7295992118,2cyclictest14246-21df09:15:142
729599210,3cyclictest0-21swapper/207:54:362
729599210,3cyclictest0-21swapper/207:54:362
7293992120,0cyclictest0-21swapper/110:57:581
7292992115,5cyclictest21887-21grep12:20:130
7292992115,5cyclictest19045-21timerandwakeup11:15:200
7292992114,6cyclictest21743-21munin-plugin-st09:30:000
7292992114,6cyclictest13192-21memory10:10:160
7292992114,6cyclictest0-21swapper/011:55:020
7292992114,6cyclictest0-21swapper/009:55:160
7292992113,7cyclictest4970-21apt-get10:55:010
729299210,2cyclictest17130-21/usr/sbin/munin07:25:180
729299210,20cyclictest843-21systemd-network07:52:400
729299210,20cyclictest843-21systemd-network07:52:400
729299210,20cyclictest23480-21grep08:35:140
729299210,20cyclictest20124-21date10:25:000
729299210,20cyclictest0-21swapper/012:10:180
729299210,20cyclictest0-21swapper/008:08:590
729299210,1cyclictest102632chrt09:08:540
729299210,1cyclictest0-21swapper/010:15:290
729299210,16cyclictest8770-21chrt10:04:120
729299210,16cyclictest2973-21postgres09:53:520
729299210,15cyclictest15013-21postgres12:08:560
729299210,15cyclictest0-21swapper/007:10:210
729299210,0cyclictest0-21swapper/009:21:330
729599203,16cyclictest22792-21apt-get11:25:122
729599203,16cyclictest0-21swapper/209:30:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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