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2026-06-16 - 21:04
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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 Tue Jun 16, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1057199225,16cyclictest870-21systemd-logind11:11:521
10570992214,4cyclictest0-21swapper/007:15:130
10570992214,4cyclictest0-21swapper/007:15:120
1057099220,5cyclictest0-21swapper/008:20:400
10571992017,2cyclictest29588-21http_loadtime09:35:161
1057299192,16cyclictest17450-21cpuspeed_turbos07:20:152
10572991916,2cyclictest27602-21processes09:30:192
1057299191,3cyclictest3065-21turbostat.cron08:50:022
10571991917,1cyclictest0-21swapper/111:32:151
10570991917,1cyclictest0-21swapper/010:13:240
10570991914,2cyclictest0-21swapper/012:15:230
1057099190,18cyclictest0-21swapper/007:34:190
10572991816,1cyclictest7677-21expr10:50:202
10572991815,2cyclictest2146-21apache_accesses11:40:122
10572991815,2cyclictest16496-21expr08:15:152
10572991814,3cyclictest17859-21grep12:05:182
10572991813,4cyclictest870-21systemd-logind09:46:512
10572991813,3cyclictest399-20systemd-journal12:15:002
1057299181,2cyclictest30217-21cpuspeed_turbos10:35:132
1057299181,16cyclictest863-21avahi-daemon08:40:222
1057299181,16cyclictest20645-21http_loadtime07:25:162
1057299180,3cyclictest4796-21wc08:50:182
1057299180,3cyclictest0-21swapper/209:55:142
1057299180,2cyclictest24656-21perf12:20:002
1057299180,16cyclictest8163-21nfsd408:55:172
1057299180,16cyclictest22403-21fschecks_count08:25:142
1057199182,1cyclictest0-21swapper/112:13:521
10571991816,1cyclictest23035-21nfsd410:20:191
10571991816,1cyclictest0-21swapper/110:10:221
10571991814,3cyclictest17026-21https07:20:021
10571991813,3cyclictest11295-21tr11:55:131
1057199180,2cyclictest1523-21lxd12:26:441
1057199180,15cyclictest3976-21H222:10:211
1057099189,8cyclictest0-21swapper/011:03:500
1057099182,15cyclictest31686-21awk12:30:170
1057099182,15cyclictest0-21swapper/012:27:230
10570991816,1cyclictest9-21ksoftirqd/010:19:490
10570991816,1cyclictest0-21swapper/012:02:560
10570991814,3cyclictest0-21swapper/010:40:180
10572991716,1cyclictest28-21ksoftirqd/210:27:412
10572991715,1cyclictest0-21swapper/211:35:172
10572991715,1cyclictest0-21swapper/210:55:202
10572991714,2cyclictest4941-21expr07:55:142
10572991714,2cyclictest3351-21lxd11:12:432
10572991714,2cyclictest31576-21netstat12:30:162
10572991714,2cyclictest28472-21nfsd410:30:182
10572991714,2cyclictest24604-21awk11:20:192
10572991714,2cyclictest19381-21fschecks_count08:20:142
10572991714,2cyclictest15829-21cat11:05:162
10572991714,2cyclictest11431-21processes08:05:212
10572991714,2cyclictest0-21swapper/207:30:132
1057299171,2cyclictest1035-21thermald09:40:212
1057299170,2cyclictest6444-21nfsd409:50:172
1057299170,2cyclictest3989-21H222:10:212
1057299170,2cyclictest29465-21fschecks_time11:30:132
1057299170,2cyclictest28661-21ntp_kernel_err08:35:202
1057299170,2cyclictest28661-21ntp_kernel_err08:35:202
1057299170,2cyclictest26310-21timerandwakeup08:30:232
1057299170,2cyclictest26255-21cpuspeed_turbos11:25:132
1057299170,2cyclictest17027-21fschecks_time10:10:162
1057299170,2cyclictest16700-21munin-run07:20:012
1057299170,2cyclictest16700-21munin-run07:20:012
1057299170,2cyclictest13426-21/usr/sbin/munin10:05:202
1057299170,16cyclictest8560-21cpuspeed_turbos11:50:142
1057299170,16cyclictest5373-21tr11:45:132
1057299170,16cyclictest4746-21missed_timers10:45:172
1057299170,16cyclictest4035-21H222:10:212
1057299170,16cyclictest3053-21systemd-logind11:56:512
1057299170,16cyclictest29167-21pzem_current12:25:202
1057299170,16cyclictest24145-21wget09:25:142
1057299170,16cyclictest21858-21nfsd411:15:172
1057299170,16cyclictest1940-21nfsd410:40:182
1057299170,16cyclictest19308-21ntp_kernel_pll_09:15:182
1057299170,16cyclictest1856-21systemd-udevd10:00:512
1057299170,16cyclictest14916-21latency_hist11:05:012
1057299170,16cyclictest12850-21anvil07:13:552
10571991715,1cyclictest0-21swapper/112:35:171
10571991715,1cyclictest0-21swapper/111:15:121
10571991714,2cyclictest9270-21cut09:00:001
10571991714,2cyclictest3836-21cat10:45:131
10571991714,2cyclictest30342-21expr10:35:131
10571991714,2cyclictest28082-21if_enp1s010:30:141
10571991714,2cyclictest22526-21timerwakeupswit09:20:231
10571991714,2cyclictest20259-21perf09:20:001
10571991714,2cyclictest14550-21snapd07:35:281
10571991714,2cyclictest13834-21https07:15:021
10571991714,2cyclictest13834-21https07:15:011
1057199171,1cyclictest0-21swapper/110:57:521
1057199170,2cyclictest3991-21H222:10:211
1057199170,2cyclictest27776-21expr08:35:151
1057199170,2cyclictest27776-21expr08:35:141
1057199170,2cyclictest19336-21cat12:10:011
1057199170,2cyclictest12827-21expr11:00:141
1057199170,16cyclictest863-21avahi-daemon11:45:201
1057199170,16cyclictest5277-21mailstats08:50:221
1057199170,16cyclictest31113-21kernelversion08:40:171
1057199170,16cyclictest24521-21perf12:20:001
1057199170,16cyclictest15720-21apt-key08:15:021
1057199170,16cyclictest14505-21snapd11:50:061
1057199170,16cyclictest10802-21awk09:00:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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