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2026-07-09 - 06:24
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Thu Jul 09, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3091999233,1cyclictest0-21swapper/022:25:170
3091999232,15cyclictest192572chrt00:31:010
30919992316,2cyclictest21338-21nfsd420:45:180
3091999230,17cyclictest0-21swapper/022:59:270
3091999230,17cyclictest0-21swapper/022:59:270
3091999230,16cyclictest3317-21apache_volume22:10:120
3092899225,16cyclictest4035-21H222:10:212
3092399220,21cyclictest31613-21fschecks_count23:00:141
30919992213,0cyclictest0-21swapper/021:05:140
3091999221,1cyclictest0-21swapper/000:09:430
3091999221,16cyclictest29274-21seq20:02:470
3091999220,3cyclictest12466-21cron21:30:010
3091999220,16cyclictest16714-21chrt22:34:400
3091999220,15cyclictest0-21swapper/019:20:210
3092399210,20cyclictest843-21systemd-network22:19:251
3091999213,11cyclictest2238-21python300:05:000
30919992114,2cyclictest4642-21munin-plugin-st19:20:020
30919992111,5cyclictest0-21swapper/021:50:010
3091999211,14cyclictest0-21swapper/023:21:090
3091999210,3cyclictest3985-21H222:10:210
3091999210,2cyclictest24592-21/usr/sbin/munin20:50:210
3091999210,2cyclictest18307-21apache_volume23:35:110
3091999210,20cyclictest843-21systemd-network21:55:140
3091999210,1cyclictest0-21swapper/023:00:210
3091999210,16cyclictest3991-21H222:10:210
3091999210,15cyclictest21544-21expr19:50:130
3091999210,15cyclictest17830-21expr20:40:120
3091999210,15cyclictest0-21swapper/023:55:030
3091999210,15cyclictest0-21swapper/023:45:200
3092899200,5cyclictest399-20systemd-journal22:55:002
30923992016,3cyclictest0-21swapper/119:57:071
30923992016,3cyclictest0-21swapper/119:57:071
30919992014,2cyclictest3987-21H222:10:210
30919992014,2cyclictest14927-21chrt23:27:020
30919992014,1cyclictest12706-21uname00:20:160
30919992013,2cyclictest19001-21timerwakeupswit22:35:210
3091999201,1cyclictest0-21swapper/022:49:070
3091999201,15cyclictest3981-21H222:10:210
3091999200,2cyclictest6679-21expr22:15:120
3091999200,2cyclictest3979-21H222:10:210
3091999200,2cyclictest3979-21H222:10:210
3091999200,16cyclictest3991-21H222:10:210
3091999200,16cyclictest3991-21H222:10:210
3091999200,15cyclictest234602chrt23:44:240
3091999200,15cyclictest0-21swapper/022:41:230
3092899193,15cyclictest28-21ksoftirqd/220:55:132
30928991917,1cyclictest0-21swapper/220:02:452
3092899190,2cyclictest4035-21H222:10:212
3092899190,2cyclictest3991-21H222:10:212
3092899190,16cyclictest4035-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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