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2026-06-28 - 07:20
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Sun Jun 28, 2026 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1041399260,24cyclictest29034-21fschecks_time22:30:130
1041599240,19cyclictest0-21swapper/220:11:422
1041499240,6cyclictest30380-21apt-config19:45:021
1041499230,22cyclictest843-21systemd-network21:27:461
1041399230,5cyclictest0-21swapper/023:20:100
1041399230,5cyclictest0-21swapper/022:29:080
1041399230,5cyclictest0-21swapper/022:29:080
1041499225,11cyclictest0-21swapper/120:57:141
10415992113,4cyclictest0-21swapper/222:45:142
10415992018,1cyclictest0-21swapper/221:01:242
1041399200,4cyclictest1172-21nfsd423:35:180
10415991910,5cyclictest0-21swapper/222:15:092
1041499193,15cyclictest0-21swapper/119:13:421
1041499192,2cyclictest30971-21sessionclean21:39:001
1041499192,2cyclictest30971-21sessionclean21:39:001
1041499192,1cyclictest0-21swapper/119:45:151
1041499191,17cyclictest0-21swapper/123:45:001
1041499190,18cyclictest0-21swapper/122:42:231
10413991916,1cyclictest0-21swapper/019:12:530
10415991815,2cyclictest342-21taskset19:45:332
10415991815,2cyclictest28332-21/usr/sbin/munin22:30:192
10415991811,6cyclictest0-21swapper/222:53:532
1041599180,17cyclictest870-21systemd-logind00:36:512
1041599180,17cyclictest5646-21cpuspeed_turbos21:50:132
1041599180,17cyclictest1035-21thermald22:10:212
1041599180,16cyclictest3981-21H222:10:212
1041499182,15cyclictest32287-21nfsd422:35:181
10414991816,1cyclictest0-21swapper/123:55:171
10414991815,2cyclictest9984-21ntp_offset23:50:181
10414991815,2cyclictest10169-21/usr/sbin/munin22:55:161
10413991816,1cyclictest0-21swapper/022:10:500
10413991814,3cyclictest5367-21gpgv21:50:020
10413991814,3cyclictest22396-21http_loadtime19:30:140
1041399181,2cyclictest15297-21nfsd400:00:180
1041399181,16cyclictest863-21avahi-daemon00:25:210
1041399180,3cyclictest843-21systemd-network00:10:130
1041399180,17cyclictest399-20systemd-journal21:59:550
1041399180,17cyclictest0-21swapper/022:40:040
1041399180,16cyclictest19195-21fschecks_count23:10:140
1041399180,16cyclictest12759-21/usr/sbin/munin23:55:190
1041599172,1cyclictest28-21ksoftirqd/219:20:012
10415991715,1cyclictest3991-21H222:10:212
10415991714,2cyclictest7029-21/usr/sbin/munin20:00:132
10415991714,2cyclictest5427-21/usr/sbin/munin20:55:142
10415991714,2cyclictest4099-21H222:10:212
10415991714,2cyclictest3707-21master23:52:572
10415991714,2cyclictest32538-21latency21:40:172
10415991714,2cyclictest30861-21ntp_kernel_pll_23:30:182
10415991714,2cyclictest27689-21kernelversion23:25:162
10415991714,2cyclictest2409-21basename23:40:002
10415991714,2cyclictest2373-21cron23:44:552
10415991714,2cyclictest23223-21users23:15:222
10415991714,2cyclictest2069-21systemd-udevd21:32:522
10415991714,2cyclictest19771-21nfsd423:10:182
10415991714,2cyclictest18500-21sed21:15:192
1041599171,15cyclictest20617-21cpuspeed_turbos21:20:132
1041599170,2cyclictest6478-21sshd19:58:232
1041599170,2cyclictest3495-21kernelversion20:50:152
1041599170,2cyclictest22645-21latency19:30:152
1041599170,2cyclictest20462-21cron20:25:012
1041599170,2cyclictest20198-21expr00:10:162
1041599170,2cyclictest19396-21cron00:10:002
1041599170,2cyclictest1835-21df_inode19:50:132
1041599170,2cyclictest12702-21ntp_kernel_pll_21:05:202
1041599170,2cyclictest12034-21cut19:10:192
1041599170,2cyclictest10442-21fschecks_time20:05:152
1041599170,2cyclictest10151-21lxd19:40:512
1041599170,1cyclictest3976-21H222:10:212
1041599170,16cyclictest4723-21python321:50:012
1041599170,16cyclictest32754-21switchtime22:35:212
1041599170,16cyclictest3053-21systemd-logind22:26:522
1041599170,16cyclictest3053-21systemd-logind22:26:522
1041599170,16cyclictest29956-21awk21:35:182
1041599170,16cyclictest29956-21awk21:35:182
1041599170,16cyclictest26079-21nfsd419:35:172
1041599170,16cyclictest25733-21sed21:30:002
1041599170,16cyclictest15529-21sed23:05:012
1041599170,16cyclictest1523-21lxd20:36:512
1041599170,16cyclictest15073-21latency00:00:172
1041599170,16cyclictest13586-21chrt23:59:332
1041599170,16cyclictest11396-21expr22:00:142
1041599170,16cyclictest11396-21expr22:00:142
1041599170,16cyclictest1079-21cups-browsed20:30:202
1041499178,5cyclictest0-21swapper/120:37:121
1041499176,0cyclictest0-21swapper/100:39:421
10414991716,1cyclictest24342-21http_loadtime20:30:151
10414991714,2cyclictest3989-21H222:10:211
10414991714,2cyclictest3979-21H222:10:211
10414991714,2cyclictest31784-21fschecks_count00:30:161
10414991714,2cyclictest31703-21cut20:45:011
10414991714,2cyclictest29712-21grep22:30:161
10414991714,2cyclictest25257-21nfsd423:20:181
10414991714,2cyclictest12252-21nfsd422:00:191
10414991714,2cyclictest12252-21nfsd422:00:191
10414991714,2cyclictest1085-21gdbus21:05:221
1041499170,2cyclictest6681-21netstat21:50:181
1041499170,2cyclictest3588-21nfsd421:45:171
1041499170,2cyclictest29636-21cpuspeed_turbos23:30:131
1041499170,2cyclictest23486-21cat20:30:011
1041499170,2cyclictest21575-21expr23:15:131
1041499170,2cyclictest18765-21nvmesmart_nvme021:15:201
1041499170,2cyclictest10151-21lxd00:08:341
1041499170,16cyclictest8496-21expr21:55:131
1041499170,16cyclictest754-21nfsd420:45:181
1041499170,16cyclictest754-21nfsd420:45:181
1041499170,16cyclictest4281-21chrt19:55:111
1041499170,16cyclictest3098-21sort20:50:131
1041499170,16cyclictest26163-21ntpq19:35:191
1041499170,16cyclictest26060-21idleruntime00:20:161
1041499170,16cyclictest25526-21find22:25:011
1041499170,16cyclictest25526-21find22:25:011
1041499170,16cyclictest20861-21expr21:20:151
1041499170,16cyclictest19413-21awk20:20:191
1041499170,16cyclictest18542-21/usr/sbin/munin23:10:141
1041499170,16cyclictest17902-21grep22:10:171
1041499170,16cyclictest14227-21cut00:00:141
1041499170,16cyclictest1182-21/usr/sbin/munin19:50:131
10413991715,1cyclictest0-21swapper/000:35:170
10413991714,2cyclictest5349-21fschecks_count22:45:150
10413991714,2cyclictest4056-21sed21:45:210
10413991714,2cyclictest31207-21expr19:45:130
10413991714,2cyclictest25933-21sendmail-mta21:30:020
10413991714,2cyclictest25090-21expr19:35:140
10413991714,2cyclictest24822-21nfsd420:30:180
10413991714,2cyclictest23944-21ntp_states00:15:200
10413991714,2cyclictest18534-21perf19:25:000
10413991714,2cyclictest18212-21ntpq00:05:190
10413991714,2cyclictest15389-21cat22:05:230
10413991714,2cyclictest13476-21sed22:05:010
10413991714,2cyclictest13476-21sed22:05:010
10413991714,2cyclictest12908-21expr20:10:130
10413991714,2cyclictest12725-21ntp_states21:05:200
10413991714,2cyclictest0-21swapper/023:05:150
1041399171,15cyclictest9-21ksoftirqd/019:25:090
1041399170,3cyclictest22993-21cat22:20:140
1041399170,2cyclictest3987-21H222:10:210
1041399170,2cyclictest3414-21master20:42:330
1041399170,2cyclictest28917-21nfsd419:40:190
1041399170,2cyclictest13854-21kernelversion23:00:170
1041399170,2cyclictest10652-21postgres23:51:360
1041399170,16cyclictest8837-21ntp_kernel_pll_22:50:190
1041399170,16cyclictest8260-21nfsd420:00:170
1041399170,16cyclictest5221-21kernelversion19:55:170
1041399170,16cyclictest508-21grep21:40:180
1041399170,16cyclictest4172-21ps20:50:180
1041399170,16cyclictest3656-21chrt19:53:100
1041399170,16cyclictest32488-21nvmesmart_nvme022:35:190
1041399170,16cyclictest30867-21dpkg00:30:000
1041399170,16cyclictest29472-21/usr/sbin/munin23:30:200
1041399170,16cyclictest25149-21sed21:25:240
1041399170,16cyclictest21766-21expr23:15:130
1041399170,16cyclictest15906-21awk21:10:170
1041399170,16cyclictest1526-21lxd00:20:340
1041399170,16cyclictest1523-21lxd21:04:510
1041399170,16cyclictest14150-21hddtemp_smartct19:15:160
1041399170,16cyclictest1300-21lxd20:26:510
1041399170,15cyclictest0-21swapper/022:56:380
10415991614,1cyclictest0-21swapper/222:55:142
10415991614,1cyclictest0-21swapper/219:25:172
10415991613,2cyclictest23738-21awk22:20:182
1041599160,1cyclictest31176-21cpu00:30:142
1041599160,1cyclictest15388-21/usr/sbin/munin20:15:112
1041599160,1cyclictest0-21swapper/223:45:202
1041599160,1cyclictest0-21swapper/200:15:132
1041599160,15cyclictest25912-21fschecks_count00:20:152
1041599160,15cyclictest1662-21/usr/sbin/munin22:40:122
1041599160,15cyclictest14253-21apt-key21:10:012
1041599160,15cyclictest0-21swapper/223:20:132
1041599160,15cyclictest0-21swapper/220:45:202
1041599160,15cyclictest0-21swapper/220:45:202
1041599160,15cyclictest0-21swapper/220:40:142
1041599160,15cyclictest0-21swapper/220:25:152
10414991615,1cyclictest31576-21/usr/sbin/munin21:40:161
10414991614,1cyclictest13793-21apt-get21:10:021
10414991614,1cyclictest0-21swapper/123:35:161
10414991614,1cyclictest0-21swapper/120:10:181
10414991614,1cyclictest0-21swapper/120:00:151
10414991613,2cyclictest22529-21/usr/sbin/munin00:15:121
1041499160,2cyclictest27391-21cut23:25:141
1041499160,2cyclictest20166-21ls00:10:161
1041499160,1cyclictest0-21swapper/123:45:211
1041499160,1cyclictest0-21swapper/123:00:221
1041499160,1cyclictest0-21swapper/122:45:041
1041499160,1cyclictest0-21swapper/121:00:041
1041499160,1cyclictest0-21swapper/119:30:181
1041499160,15cyclictest27346-21ntp_offset21:30:171
1041499160,15cyclictest1856-21systemd-udevd20:18:521
1041499160,15cyclictest16546-21cat23:05:161
1041499160,15cyclictest10983-21netstat20:05:181
1041499160,15cyclictest0-21swapper/122:50:151
1041499160,15cyclictest0-21swapper/122:05:151
1041499160,15cyclictest0-21swapper/119:25:211
1041499160,15cyclictest0-21swapper/119:15:221
1041499160,15cyclictest0-21swapper/100:25:151
10413991614,1cyclictest0-21swapper/023:25:120
10413991614,1cyclictest0-21swapper/021:40:000
10413991614,1cyclictest0-21swapper/021:40:000
10413991614,1cyclictest0-21swapper/020:55:140
10413991614,1cyclictest0-21swapper/020:45:170
10413991614,1cyclictest0-21swapper/020:45:170
10413991614,1cyclictest0-21swapper/020:05:170
10413991613,2cyclictest843-21systemd-network21:22:060
1041399160,15cyclictest18871-21hddtemp_smartct20:20:160
1041399160,15cyclictest0-21swapper/023:45:140
1041399160,15cyclictest0-21swapper/023:40:170
1041399160,15cyclictest0-21swapper/022:15:160
1041399160,15cyclictest0-21swapper/020:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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