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2026-04-26 - 19:53
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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 Sun Apr 26, 2026 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26893992414,10cyclictest0-21swapper/111:30:011
26894992114,4cyclictest0-21swapper/209:26:532
2689299210,3cyclictest0-21swapper/012:31:440
2689499203,16cyclictest17196-21fschecks_time10:40:132
2689299204,15cyclictest0-21swapper/011:17:350
2689299203,2cyclictest14501-21snapd07:32:580
26892992015,4cyclictest0-21swapper/010:46:270
2689299200,17cyclictest0-21swapper/008:18:510
26894991917,1cyclictest0-21swapper/211:45:492
26894991917,1cyclictest0-21swapper/211:40:032
26894991917,1cyclictest0-21swapper/210:45:022
2689499190,17cyclictest3989-21H222:10:212
2689499190,16cyclictest4099-21H222:10:212
2689499190,16cyclictest3989-21H222:10:212
2689399190,2cyclictest3991-21H222:10:211
2689399190,2cyclictest3987-21H222:10:211
2689399190,2cyclictest3987-21H222:10:211
2689399190,1cyclictest0-21swapper/108:30:141
2689399190,1cyclictest0-21swapper/108:30:131
2689399190,17cyclictest0-21swapper/112:25:131
2689399190,16cyclictest4099-21H222:10:211
2689399190,16cyclictest3987-21H222:10:211
26892991917,1cyclictest0-21swapper/009:52:300
26892991917,1cyclictest0-21swapper/009:22:190
2689299190,16cyclictest4099-21H222:10:210
2689499182,15cyclictest0-21swapper/207:30:192
2689499181,2cyclictest6724-21ntp_kernel_pll_08:25:182
2689499181,16cyclictest3987-21H222:10:212
2689499181,16cyclictest1300-21lxd08:52:432
2689499180,2cyclictest4035-21H222:10:212
2689499180,2cyclictest3989-21H222:10:212
2689499180,2cyclictest3981-21H222:10:212
2689499180,17cyclictest5975-21munin-run12:15:002
2689499180,17cyclictest24948-21tr09:55:182
2689499180,16cyclictest4035-21H222:10:212
2689499180,15cyclictest3976-21H222:10:212
2689499180,15cyclictest3976-21H222:10:212
2689399182,15cyclictest21-21ksoftirqd/107:14:191
2689399182,15cyclictest0-21swapper/111:44:521
2689399182,15cyclictest0-21swapper/110:59:511
2689399182,15cyclictest0-21swapper/108:13:321
26893991816,1cyclictest4099-21H222:10:211
26893991816,1cyclictest21-21ksoftirqd/107:41:081
26893991816,1cyclictest0-21swapper/110:42:521
26893991815,2cyclictest3991-21H222:10:211
26893991815,2cyclictest26418-21expr08:05:151
26893991814,3cyclictest3414-21master09:14:071
26893991814,3cyclictest0-21swapper/110:52:061
2689399181,16cyclictest31811-21nfsd411:05:171
2689399180,3cyclictest17856-21nvmesmart_nvme008:45:191
2689399180,2cyclictest3983-21H222:10:211
2689399180,16cyclictest3991-21H222:10:211
2689399180,16cyclictest3707-21master08:25:081
2689399180,16cyclictest22426-21nfsd411:45:171
2689399180,16cyclictest0-21swapper/109:55:171
2689299182,2cyclictest4099-21H222:10:210
2689299182,1cyclictest86272sleep012:16:340
2689299182,15cyclictest9-21ksoftirqd/011:39:180
2689299182,15cyclictest30482-21cpuspeed_turbos09:10:140
26892991816,1cyclictest29713-21fschecks_time10:05:150
26892991816,1cyclictest0-21swapper/010:18:250
26892991816,1cyclictest0-21swapper/010:18:240
26892991816,1cyclictest0-21swapper/008:30:010
26892991816,1cyclictest0-21swapper/007:35:200
2689299180,2cyclictest4099-21H222:10:210
2689299180,2cyclictest3985-21H222:10:210
2689299180,17cyclictest4035-21H222:10:210
2689299180,16cyclictest3981-21H222:10:210
2689299180,15cyclictest4099-21H222:10:210
2689299180,15cyclictest3987-21H222:10:210
2689299180,15cyclictest3976-21H222:10:210
2689299180,15cyclictest3976-21H222:10:210
26894991716,1cyclictest28-21ksoftirqd/208:36:222
26894991715,1cyclictest0-21swapper/211:27:092
26894991715,1cyclictest0-21swapper/207:10:222
26894991714,2cyclictest4035-21H222:10:212
26894991714,2cyclictest3991-21H222:10:212
26894991714,2cyclictest3991-21H222:10:212
26894991714,2cyclictest3989-21H222:10:212
26894991714,2cyclictest3989-21H222:10:212
26894991714,2cyclictest32073-21grep10:10:142
26894991714,2cyclictest17795-21sessionclean11:38:592
26894991714,2cyclictest13874-21cpuspeed_turbos08:40:132
26894991714,2cyclictest12416-21/usr/sbin/munin11:30:172
26894991714,2cyclictest0-21swapper/210:21:092
26894991712,2cyclictest4099-21H222:10:212
2689499171,16cyclictest0-21swapper/208:00:352
2689499171,15cyclictest4035-21H222:10:212
2689499171,15cyclictest28632-21sendmail_mailst11:55:202
2689499171,15cyclictest28-21ksoftirqd/207:50:232
2689499171,15cyclictest1180-21latency12:05:172
2689499170,2cyclictest8366-21cpuspeed_turbos10:25:142
2689499170,2cyclictest3991-21H222:10:212
2689499170,2cyclictest3987-21H222:10:212
2689499170,2cyclictest3979-21H222:10:212
2689499170,2cyclictest3414-21master08:09:392
2689499170,2cyclictest28909-21grep08:10:132
2689499170,2cyclictest1546-21cat08:20:012
2689499170,2cyclictest14728-21apt-config09:40:012
2689499170,2cyclictest14495-21snapd09:30:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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