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2026-01-01 - 09:00
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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 Thu Jan 01, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21695992422,2cyclictest0-21swapper/123:30:171
2169999226,15cyclictest0-21swapper/220:21:162
2169599227,14cyclictest0-21swapper/121:31:241
2169599210,19cyclictest9975-21fschecks_time00:35:161
2169499210,18cyclictest0-21swapper/022:55:340
21699992016,3cyclictest0-21swapper/219:17:442
2169999200,19cyclictest0-21swapper/200:00:012
2169599207,11cyclictest12130-21cut20:45:191
2169599207,11cyclictest12130-21cut20:45:181
21695992016,3cyclictest23369-21munin-run00:00:011
21694992017,2cyclictest22602-21sessionclean20:09:010
21699991915,3cyclictest0-21swapper/223:10:342
2169999190,3cyclictest0-21swapper/200:33:392
2169999190,1cyclictest0-21swapper/222:55:152
2169999190,16cyclictest11200-21nfsd423:35:172
2169599192,16cyclictest11068-21missed_timers23:35:161
21695991915,3cyclictest0-21swapper/100:05:011
21695991914,4cyclictest15356-21fschecks_count21:50:121
2169599190,17cyclictest3991-21H222:10:211
2169499190,18cyclictest0-21swapper/000:39:060
21699991816,1cyclictest3331-21latency20:30:172
21699991816,1cyclictest0-21swapper/221:37:442
21699991816,1cyclictest0-21swapper/220:45:222
21699991816,1cyclictest0-21swapper/220:45:222
21699991814,3cyclictest3985-21H222:10:212
21699991814,2cyclictest30117-21pzem22:15:202
2169999180,3cyclictest30188-21anvil19:25:072
2169999180,2cyclictest3979-21H222:10:212
2169999180,16cyclictest399-20systemd-journal22:20:012
2169999180,16cyclictest3991-21H222:10:212
2169999180,16cyclictest3989-21H222:10:212
2169599182,1cyclictest14662chrt22:20:311
2169599182,15cyclictest26567-21idleruntime22:10:171
21695991815,2cyclictest5891-21ntpq23:25:171
21695991815,2cyclictest3976-21H222:10:211
2169599181,2cyclictest0-21swapper/100:20:181
2169599180,3cyclictest19505-21grep23:50:191
2169599180,2cyclictest3991-21H222:10:211
2169599180,17cyclictest4099-21H222:10:211
2169499183,14cyclictest0-21swapper/022:45:250
2169499182,1cyclictest0-21swapper/021:40:130
2169499182,15cyclictest251892sleep020:11:360
21694991816,1cyclictest0-21swapper/000:12:310
21694991815,2cyclictest3981-21H222:10:210
21694991814,3cyclictest23232-21proxymap23:58:280
21694991814,3cyclictest0-21swapper/021:05:130
21694991813,2cyclictest3979-21H222:10:210
2169499181,2cyclictest27243-21munin-run21:15:010
2169499180,3cyclictest19089-21wc21:00:140
2169499180,2cyclictest3991-21H222:10:210
2169499180,2cyclictest3981-21H222:10:210
2169499180,2cyclictest3976-21H222:10:210
21699991715,1cyclictest0-21swapper/219:30:182
21699991714,2cyclictest5227-21/usr/sbin/munin20:35:132
21699991714,2cyclictest28-21ksoftirqd/219:55:092
21699991714,2cyclictest27338-21latency_hist00:10:002
21699991714,2cyclictest24702-21sed22:05:212
21699991714,2cyclictest24702-21sed22:05:202
21699991714,2cyclictest24404-21fschecks_count00:00:152
21699991714,2cyclictest12763-21idleruntime21:45:162
21699991714,2cyclictest11506-21expr22:40:142
21699991713,3cyclictest6449-21http_loadtime22:30:162
21699991713,3cyclictest6449-21http_loadtime22:30:162
2169999171,15cyclictest3991-21H222:10:212
2169999171,15cyclictest168112chrt21:52:132
2169999170,3cyclictest0-21swapper/223:40:172
2169999170,2cyclictest3981-21H222:10:212
2169999170,2cyclictest3414-21master00:35:102
2169999170,2cyclictest28976-21ntp_states00:10:162
2169999170,2cyclictest27746-21users22:10:232
2169999170,2cyclictest24885-21latency_hist23:05:002
2169999170,2cyclictest22240-21expr21:05:142
2169999170,2cyclictest18295-21chrt23:50:022
2169999170,1cyclictest0-21swapper/222:00:072
2169999170,16cyclictest7788-21cut19:40:202
2169999170,16cyclictest530-21nfsd420:25:192
2169999170,16cyclictest3983-21H222:10:212
2169999170,16cyclictest3414-21master20:03:592
2169999170,16cyclictest32167-21grep23:15:202
2169999170,16cyclictest31485-21awk21:20:202
2169999170,16cyclictest27244-21grep21:15:012
2169999170,16cyclictest15541-21vmstat20:50:232
2169999170,16cyclictest10959-21basename22:40:002
2169999170,15cyclictest3979-21H222:10:212
21695991716,1cyclictest21-21ksoftirqd/123:07:561
21695991715,1cyclictest21-21ksoftirqd/121:13:451
21695991714,2cyclictest4126-21perf23:25:001
21695991714,2cyclictest3983-21H222:10:211
21695991714,2cyclictest24180-21chrt22:05:181
21695991714,2cyclictest24180-21chrt22:05:181
21695991714,2cyclictest22751-21perf20:10:011
21695991714,2cyclictest15446-21ntpq22:45:191
21695991714,2cyclictest14503-21cat21:50:011
21695991714,2cyclictest1377-21lxd23:46:341
2169599171,15cyclictest0-21swapper/121:25:181
2169599170,2cyclictest32285-21cut23:15:201
2169599170,2cyclictest28808-21grep00:10:151
2169599170,2cyclictest22626-21expr23:00:141
2169599170,16cyclictest5901-21cpuspeed_turbos22:30:141
2169599170,16cyclictest5901-21cpuspeed_turbos22:30:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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