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2026-01-02 - 21:43
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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 Jan 02, 2026 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21676992414,10cyclictest0-21swapper/111:45:131
2167599242,21cyclictest0-21swapper/007:20:010
2167599240,18cyclictest23030-21nfsd411:55:190
2167599230,0cyclictest0-21swapper/011:20:130
21677992222,0cyclictest0-21swapper/209:44:522
2167699220,4cyclictest0-21swapper/108:18:081
2167799214,10cyclictest0-21swapper/207:28:202
21676992112,5cyclictest0-21swapper/111:38:391
2167799206,8cyclictest0-21swapper/207:55:012
21677992018,1cyclictest0-21swapper/210:16:452
2167699204,15cyclictest0-21swapper/108:47:231
2167699200,19cyclictest843-21systemd-network07:30:281
21677991913,5cyclictest0-21swapper/209:24:412
2167699194,1cyclictest0-21swapper/110:09:571
21676991917,1cyclictest0-21swapper/109:31:201
21676991917,1cyclictest0-21swapper/109:31:201
21675991917,1cyclictest0-21swapper/011:38:290
21675991916,2cyclictest9224-21readlink09:35:210
21675991916,2cyclictest29993-21cpuspeed_turbos10:15:150
21675991915,3cyclictest0-21swapper/008:45:460
21677991816,1cyclictest0-21swapper/211:15:232
21677991816,1cyclictest0-21swapper/211:15:232
2167799180,2cyclictest3441-21packagekitd07:13:542
2167799180,17cyclictest22596-21basename11:00:012
2167799180,17cyclictest0-21swapper/211:25:132
2167799180,16cyclictest0-21swapper/207:15:142
2167699182,2cyclictest26561-21wc12:00:221
2167699182,1cyclictest0-21swapper/112:15:151
21676991815,2cyclictest31250-21proc_pri10:15:221
21676991815,2cyclictest1316-21munin-run09:25:011
21676991815,2cyclictest0-21swapper/110:38:151
21676991814,3cyclictest29098-21ls07:20:221
2167699181,1cyclictest0-21swapper/109:27:551
2167699180,3cyclictest1300-21lxd11:40:421
2167699180,3cyclictest1300-21lxd11:40:421
2167699180,17cyclictest5079-21grep12:20:141
2167699180,17cyclictest0-21swapper/107:10:251
2167599182,15cyclictest4531-21grep12:20:130
2167599181,3cyclictest20855-21latency09:00:170
2167599181,1cyclictest0-21swapper/008:15:220
2167599180,17cyclictest4323-21awk08:30:180
2167599180,17cyclictest1829-21systemd-journal09:15:000
2167599180,16cyclictest0-21swapper/008:10:120
2167799175,11cyclictest0-21swapper/212:28:532
21677991715,1cyclictest4964-21cpuspeed_turbos09:30:142
21677991715,1cyclictest4964-21cpuspeed_turbos09:30:132
21677991715,1cyclictest0-21swapper/211:45:162
21677991715,1cyclictest0-21swapper/207:35:242
21677991714,2cyclictest8191-21pickup12:03:142
21677991714,2cyclictest31266-21cut11:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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