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2026-06-12 - 03:54
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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 376 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
3144499170,16cyclictest836-21switchtime22:55:221
3144499170,16cyclictest3053-21systemd-logind22:34:521
3144499170,16cyclictest3053-21systemd-logind22:34:521
3144499170,16cyclictest2069-21systemd-udevd19:26:521
3144499170,16cyclictest1829-21systemd-journal21:15:011
3144499170,16cyclictest1829-21systemd-journal21:15:011
3144499170,16cyclictest15510-21postgres19:37:101
3144499170,16cyclictest10864-21grep20:25:161
31442991714,2cyclictest8791-21if_enp1s019:25:150
31442991714,2cyclictest5365-21/usr/sbin/munin23:05:130
31442991714,2cyclictest3707-21master21:16:540
31442991714,2cyclictest3707-21master21:16:530
31442991714,2cyclictest24345-21df20:50:130
31442991714,2cyclictest23385-21cut22:40:010
31442991714,2cyclictest21981-21cat19:50:010
31442991714,2cyclictest19490-21nfsd400:25:170
31442991714,2cyclictest17933-21apt20:40:120
31442991714,2cyclictest17395-21apache_volume22:30:130
31442991714,2cyclictest17395-21apache_volume22:30:130
31442991713,3cyclictest0-21swapper/022:10:170
3144299171,15cyclictest298742chrt20:03:490
3144299171,15cyclictest0-21swapper/022:15:220
3144299170,2cyclictest21912-21nfsd420:45:180
3144299170,2cyclictest13886-21basename20:30:220
3144299170,1cyclictest3985-21H222:10:210
3144299170,16cyclictest9326-21cron00:09:000
3144299170,16cyclictest6510-21sed20:20:000
3144299170,16cyclictest5986-21sed00:00:210
3144299170,16cyclictest28841-21awk21:00:010
3144299170,16cyclictest27609-21dpkg21:55:010
3144299170,16cyclictest26581-21nfsd423:40:190
3144299170,16cyclictest23714-21/usr/sbin/munin21:45:180
3144299170,16cyclictest23318-21grep00:35:000
3144299170,16cyclictest2307-21expr22:05:140
3144299170,16cyclictest17953-21nfsd419:40:180
3144299170,16cyclictest16754-21cp23:25:010
3144299170,16cyclictest15904-21expr00:20:130
3144299170,16cyclictest15670-21ntp_states22:25:230
3144299170,16cyclictest15329-21expr20:35:130
3144299170,16cyclictest12665-21postgres19:30:410
3144299170,16cyclictest12665-21postgres19:30:410
3144299170,16cyclictest1240-21expr20:10:130
3144299170,16cyclictest11699-21/usr/sbin/munin22:20:130
3144299170,16cyclictest11416-21cat21:25:140
31446991614,1cyclictest0-21swapper/221:06:272
31446991614,1cyclictest0-21swapper/220:55:152
31446991613,2cyclictest31656-21expr22:00:142
31446991613,2cyclictest1711-21http_loadtime20:10:152
31446991613,2cyclictest16150-21fschecks_count00:20:142
3144699160,1cyclictest0-21swapper/222:30:032
3144699160,1cyclictest0-21swapper/222:30:022
3144699160,15cyclictest23634-21cpuspeed_turbos22:40:142
3144699160,15cyclictest22865-21fschecks_time21:45:122
3144699160,15cyclictest2011-21/usr/sbin/munin22:05:122
3144699160,15cyclictest0-21swapper/222:10:102
3144699160,15cyclictest0-21swapper/221:35:452
3144699160,15cyclictest0-21swapper/221:20:172
3144699160,15cyclictest0-21swapper/220:50:172
3144699160,15cyclictest0-21swapper/200:00:122
31444991614,1cyclictest8350-21acpi21:20:111
31444991614,1cyclictest17929-21apache_volume20:40:111
31444991614,1cyclictest0-21swapper/122:30:001
31444991614,1cyclictest0-21swapper/122:10:131
31444991614,1cyclictest0-21swapper/121:10:161
31444991614,1cyclictest0-21swapper/120:30:161
31444991614,1cyclictest0-21swapper/119:20:141
31444991614,1cyclictest0-21swapper/100:25:121
3144499160,2cyclictest7279-21cpuspeed_turbos00:05:141
3144499160,2cyclictest20262-21if_eno119:45:161
3144499160,1cyclictest0-21swapper/121:33:451
3144499160,1cyclictest0-21swapper/100:30:191
3144499160,1cyclictest0-21swapper/100:20:161
3144499160,16cyclictest0-21swapper/100:00:131
3144499160,15cyclictest26863-21hddtemp_smartct22:45:151
3144499160,15cyclictest0-21swapper/123:30:161
3144499160,15cyclictest0-21swapper/123:05:161
3144499160,15cyclictest0-21swapper/122:35:161
3144499160,15cyclictest0-21swapper/122:05:011
3144499160,15cyclictest0-21swapper/119:55:131
3144499160,15cyclictest0-21swapper/100:10:131
31442991614,1cyclictest3598-21grep19:15:180
31442991614,1cyclictest0-21swapper/023:50:210
31442991614,1cyclictest0-21swapper/023:10:290
31442991614,1cyclictest0-21swapper/021:55:130
31442991614,1cyclictest0-21swapper/020:23:140
31442991614,1cyclictest0-21swapper/020:05:120
31442991614,1cyclictest0-21swapper/019:50:140
31442991614,1cyclictest0-21swapper/019:21:200
31442991614,1cyclictest0-21swapper/000:10:130
31442991613,2cyclictest4548-21sshd23:03:250
31442991613,2cyclictest10036-21expr20:25:120
3144299160,2cyclictest29245-21needreboot23:45:170
3144299160,15cyclictest3976-21H222:10:210
3144299160,15cyclictest29862-21fschecks_count21:00:140
3144299160,15cyclictest26150-21awk22:45:110
3144299160,15cyclictest23750-21cpu00:35:130
3144299160,15cyclictest23424-21apache_processe22:40:130
3144299160,15cyclictest20323-21df_inode23:30:120
3144299160,15cyclictest1646-21cat23:55:130
3144299160,15cyclictest14745-21kernelversion21:30:160
3144299160,15cyclictest0-21swapper/019:10:120
3144299160,15cyclictest0-21swapper/000:15:130
3144499150,1cyclictest0-21swapper/121:41:301
3144499150,1cyclictest0-21swapper/120:20:201
3144499150,1cyclictest0-21swapper/100:15:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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