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2026-06-12 - 12:46
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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 Fri Jun 12, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3144299340,1cyclictest0-21swapper/023:35:130
3144299240,19cyclictest0-21swapper/021:40:130
3144699230,5cyclictest3450-21gsd-color21:17:152
3144699230,5cyclictest3450-21gsd-color21:17:152
3144499228,13cyclictest0-21swapper/121:06:501
31444992217,4cyclictest0-21swapper/120:05:191
31444992118,2cyclictest455-21plymouthd23:35:131
31442992114,3cyclictest0-21swapper/023:24:240
31446992016,3cyclictest0-21swapper/219:25:432
31446992014,3cyclictest0-21swapper/221:00:182
3144699200,19cyclictest22021-21munin-plugin-st19:50:002
3144499204,9cyclictest27323-21http21:55:011
3144699193,15cyclictest18342-21mailstats19:40:212
3144299192,2cyclictest17768-21nfsd421:35:180
3144299192,16cyclictest15390-21seq19:35:300
3144299190,3cyclictest1152-21sed21:05:180
3144699182,15cyclictest12870-21timerandwakeup21:25:222
3144699182,15cyclictest0-21swapper/221:54:312
3144699182,15cyclictest0-21swapper/220:40:192
31446991816,1cyclictest12929-21expr00:15:132
31446991815,2cyclictest3572-21idleruntime21:10:162
31446991815,2cyclictest32038-21grep23:50:172
31446991815,2cyclictest13908-21cpuspeed_turbos21:30:132
31446991813,4cyclictest0-21swapper/222:56:142
3144699181,2cyclictest4530-21chrt19:16:332
3144699181,1cyclictest0-21swapper/220:20:132
3144699180,3cyclictest0-21swapper/200:33:302
3144699180,17cyclictest0-21swapper/220:18:372
31444991816,1cyclictest1100-21snmpd20:11:201
31444991816,1cyclictest0-21swapper/120:45:141
31444991815,2cyclictest28657-21latency20:00:171
31444991815,2cyclictest12902-21seq19:33:541
31444991815,2cyclictest12902-21seq19:33:541
31442991816,1cyclictest12402-21cat23:15:220
31442991815,2cyclictest863-21avahi-daemon21:20:210
31442991815,2cyclictest31785-21grep22:55:140
31442991814,3cyclictest0-21swapper/022:00:170
3144299181,16cyclictest4220-21cut21:10:190
3144699172,1cyclictest28-21ksoftirqd/223:17:192
31446991715,1cyclictest31950irq/134-nvme0q323:35:002
31446991715,1cyclictest0-21swapper/223:05:132
31446991715,1cyclictest0-21swapper/220:08:062
31446991714,2cyclictest30090-21nfsd422:50:182
31446991714,2cyclictest29195-21/usr/sbin/munin20:00:202
31446991714,2cyclictest27243-21timerwakeupswit23:40:232
31446991714,2cyclictest20343-21cnf-update-db22:35:012
31446991714,2cyclictest1829-21systemd-journal00:35:012
31446991714,2cyclictest15915-21apt-get19:40:012
31446991714,2cyclictest15833-21mailstats22:25:262
31446991714,2cyclictest12934-21fschecks_time20:30:152
31446991714,2cyclictest11947-21nfsd419:30:172
31446991714,2cyclictest11947-21nfsd419:30:172
31446991714,2cyclictest10205-21fschecks_count20:25:132
3144699171,15cyclictest19688-21open_files00:25:182
31446991710,6cyclictest24912-21cron23:40:012
3144699170,2cyclictest7653-21fschecks_count00:05:152
3144699170,2cyclictest32020-21expr19:10:122
3144699170,2cyclictest1931-21fschecks_time23:55:152
3144699170,2cyclictest18384-21ntp_kernel_pll_23:25:182
3144699170,2cyclictest1085-21gdbus22:20:012
3144699170,16cyclictest9101-21missed_timers22:15:172
3144699170,16cyclictest8239-21cat23:10:132
3144699170,16cyclictest6808-21mailstats19:20:212
3144699170,16cyclictest3159-21wc23:00:162
3144699170,16cyclictest29455-21nfsd423:45:182
3144699170,16cyclictest28539-21cat21:55:132
3144699170,16cyclictest22021-21ntp_kernel_pll_20:45:182
3144699170,16cyclictest14550-21snapd19:57:582
3144699170,16cyclictest11289-21awk00:10:172
3144699170,15cyclictest3987-21H222:10:212
3144699170,15cyclictest3978-21H222:10:212
3144699170,15cyclictest15023-21apache_volume20:35:122
31444991714,2cyclictest4662-21df20:15:141
31444991714,2cyclictest4488-21sshd23:02:361
31444991714,2cyclictest426-21systemd-udevd23:11:521
31444991714,2cyclictest3983-21H222:10:211
31444991714,2cyclictest3981-21H222:10:211
31444991714,2cyclictest3979-21H222:10:211
31444991714,2cyclictest29342-21grep21:55:181
31444991714,2cyclictest25399-21postgres22:40:451
31444991714,2cyclictest2158-21/usr/sbin/munin19:15:221
31444991714,2cyclictest18174-21/usr/sbin/munin19:40:191
31444991714,2cyclictest15443-21mailstats23:20:211
31444991714,2cyclictest14500-21snapd23:40:281
31444991714,2cyclictest12983-21timerwakeupswit21:25:221
31444991714,2cyclictest11056-21gpgv22:20:011
31444991714,2cyclictest1085-21gdbus23:55:201
31444991713,3cyclictest863-21avahi-daemon00:35:221
31444991713,2cyclictest31935-21tr19:10:121
31444991713,1cyclictest0-21swapper/121:39:011
3144499171,15cyclictest24248-21chrt19:51:561
3144499171,15cyclictest0-21swapper/120:55:191
3144499170,2cyclictest3985-21H222:10:211
3144499170,2cyclictest32415-21nfsd422:00:201
3144499170,2cyclictest3053-21systemd-logind22:18:521
3144499170,2cyclictest30457-21nfsd421:00:171
3144499170,2cyclictest24244-21chrt21:46:581
3144499170,2cyclictest24018-21cstates20:50:131
3144499170,2cyclictest13052-21munin-run23:20:001
3144499170,1cyclictest0-21swapper/120:35:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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