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2026-05-10 - 03:23
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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 May 10, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2636599240,6cyclictest22978-21ps20:55:210
2636599230,5cyclictest0-21swapper/021:38:570
2636699220,4cyclictest0-21swapper/119:30:591
26365992220,1cyclictest0-21swapper/021:30:010
2636799213,16cyclictest15628-21sh20:45:012
2636699210,3cyclictest0-21swapper/121:10:311
26365992113,4cyclictest0-21swapper/019:48:450
2636799204,15cyclictest16784-21ntp_kernel_pll_23:35:192
26365992015,3cyclictest0-21swapper/020:30:410
2636599201,18cyclictest25872-21tr22:00:140
2636599201,18cyclictest25872-21tr22:00:140
26367991919,0cyclictest0-21swapper/221:55:162
26367991916,2cyclictest829-21proc_pri22:10:212
26367991915,3cyclictest0-21swapper/219:55:442
2636699192,16cyclictest0-21swapper/122:31:201
26366991917,1cyclictest0-21swapper/123:28:391
26366991917,1cyclictest0-21swapper/119:46:061
26366991916,2cyclictest10136-21awk19:35:181
2636599194,1cyclictest0-21swapper/021:53:070
2636599192,15cyclictest0-21swapper/023:00:170
26365991917,1cyclictest0-21swapper/020:20:010
2636599190,16cyclictest0-21swapper/000:04:590
2636799182,15cyclictest12140-21chrt23:28:362
26367991814,3cyclictest3976-21H222:10:212
2636799181,2cyclictest3991-21H222:10:212
2636799180,3cyclictest2007-21systemd-journal21:35:162
2636799180,3cyclictest1829-21systemd-journal22:01:242
2636799180,3cyclictest1829-21systemd-journal22:01:232
2636799180,17cyclictest3981-21H222:10:212
2636799180,16cyclictest3989-21H222:10:212
26366991814,3cyclictest11098-21perf21:35:011
2636699180,3cyclictest14050-21cat21:40:011
2636699180,2cyclictest3991-21H222:10:211
2636699180,17cyclictest4035-21H222:10:211
2636699180,17cyclictest3985-21H222:10:211
2636699180,17cyclictest12453-21perf20:40:011
2636699180,16cyclictest31295-21nfsd400:00:181
2636599182,2cyclictest6492-21nfsd422:20:180
26365991814,3cyclictest16655-21nfsd423:35:180
2636599181,2cyclictest26157-21chrt23:50:520
2636599180,17cyclictest4035-21H222:10:210
2636599180,16cyclictest12543-21python320:40:010
26367991716,1cyclictest0-21swapper/220:05:412
26367991715,1cyclictest247502sleep222:52:402
26367991715,1cyclictest0-21swapper/222:05:142
26367991715,1cyclictest0-21swapper/221:15:052
26367991715,1cyclictest0-21swapper/220:55:142
26367991714,2cyclictest5264-21/usr/sbin/munin22:20:122
26367991714,2cyclictest25800-21sendmail_mailtr21:00:212
26367991714,1cyclictest3981-21H222:10:212
26367991713,3cyclictest0-21swapper/219:17:552
26367991713,3cyclictest0-21swapper/200:17:572
2636799171,15cyclictest0-21swapper/222:43:392
2636799170,2cyclictest6681-21/usr/sbin/munin19:30:142
2636799170,2cyclictest3981-21H222:10:212
2636799170,2cyclictest3979-21H222:10:212
2636799170,2cyclictest30887-21cat00:00:162
2636799170,2cyclictest15002-21expr21:40:152
2636799170,2cyclictest14499-21snapd22:37:572
2636799170,2cyclictest12478-21sendmail-msp20:40:002
2636799170,16cyclictest3991-21H222:10:212
2636799170,16cyclictest3981-21H222:10:212
2636799170,16cyclictest3748-21grep00:10:112
2636799170,16cyclictest27841-21cut23:00:002
2636799170,16cyclictest25188-21latency23:50:152
2636799170,16cyclictest21284-21cut20:55:012
2636799170,16cyclictest21181-21nfsd422:45:192
2636799170,16cyclictest20546-21cstates21:50:122
2636799170,16cyclictest11028-21nfsd400:20:192
2636799170,16cyclictest10999-21sshd19:38:252
2636799170,16cyclictest10151-21lxd19:14:502
2636799170,16cyclictest0-21swapper/223:10:132
2636799170,16cyclictest0-21swapper/219:45:132
26366991715,1cyclictest0-21swapper/119:55:161
26366991715,1cyclictest0-21swapper/119:52:051
26366991715,1cyclictest0-21swapper/100:35:021
26366991714,2cyclictest5064-21timerandwakeup21:20:231
26366991714,2cyclictest29051-21python319:15:011
26366991714,2cyclictest26615-21nfsd420:05:161
26366991714,2cyclictest19891-21/usr/sbin/munin22:45:171
26366991714,2cyclictest0-21swapper/121:15:181
2636699171,15cyclictest19985-21expr20:50:181
2636699170,2cyclictest7688-21expr23:20:151
2636699170,2cyclictest7688-21expr23:20:151
2636699170,2cyclictest3991-21H222:10:211
2636699170,2cyclictest21324-21memory21:50:151
2636699170,2cyclictest17332-21nfsd420:45:191
2636699170,2cyclictest15411-21df21:40:161
2636699170,2cyclictest14063-21ntp_offset23:30:191
2636699170,1cyclictest0-21swapper/121:03:471
2636699170,16cyclictest7994-21vmstat21:25:211
2636699170,16cyclictest3991-21H222:10:211
2636699170,16cyclictest3991-21H222:10:211
2636699170,16cyclictest3989-21H222:10:211
2636699170,16cyclictest3981-21H222:10:211
2636699170,16cyclictest32732-21ls22:10:181
2636699170,16cyclictest31033-21python322:10:001
2636699170,16cyclictest29979-21cpuspeed_turbos19:15:141
2636699170,16cyclictest22774-21awk20:55:191
2636699170,16cyclictest19331-21apt-config22:45:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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