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2025-12-31 - 08:08
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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 Wed Dec 31, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1220099230,22cyclictest843-21systemd-network22:15:322
1219999220,21cyclictest843-21systemd-network20:31:221
1219899223,10cyclictest0-21swapper/020:15:190
1220099210,7cyclictest843-21systemd-network20:36:312
1219999210,18cyclictest0-21swapper/120:15:031
12200992017,2cyclictest0-21swapper/223:43:342
1220099200,19cyclictest22038-21cpuspeed_turbos20:25:132
1220099200,18cyclictest0-21swapper/220:30:192
12199992016,3cyclictest0-21swapper/119:58:291
12199992014,5cyclictest0-21swapper/122:58:011
1219899202,17cyclictest0-21swapper/020:52:020
1220099193,15cyclictest29609-21latency_hist22:35:012
12200991913,5cyclictest843-21systemd-network23:12:172
1220099191,17cyclictest0-21swapper/221:26:482
1219999192,2cyclictest32409-21chrt00:30:481
1219999192,1cyclictest0-21swapper/119:17:291
12199991917,1cyclictest0-21swapper/120:10:131
12199991916,2cyclictest15660-21if_eno123:05:181
12199991915,3cyclictest0-21swapper/100:26:431
12198991917,1cyclictest0-21swapper/023:55:150
1220099183,1cyclictest0-21swapper/219:35:102
1220099182,15cyclictest0-21swapper/220:08:152
12200991816,1cyclictest0-21swapper/223:55:282
12200991815,2cyclictest0-21swapper/220:10:202
12200991814,3cyclictest0-21swapper/223:08:112
1220099181,2cyclictest11319-21chrt21:03:132
1220099181,1cyclictest0-21swapper/221:05:232
1220099180,2cyclictest399-20systemd-journal00:09:212
1220099180,1cyclictest0-21swapper/200:04:592
1220099180,17cyclictest843-21systemd-network22:51:392
1220099180,17cyclictest17952-21smtpd19:20:112
12199991815,1cyclictest0-21swapper/120:30:001
12199991814,3cyclictest0-21swapper/119:23:211
12199991814,1cyclictest0-21swapper/122:30:191
1219999181,3cyclictest0-21swapper/123:20:171
1219999180,2cyclictest3991-21H222:10:211
1219999180,1cyclictest0-21swapper/100:05:141
12198991815,2cyclictest17939-21sendmail_mailst22:10:250
1219899180,3cyclictest843-21systemd-network21:46:400
1219899180,2cyclictest3987-21H222:10:210
1219899180,17cyclictest3985-21H222:10:210
1219899180,16cyclictest0-21swapper/000:05:190
12200991715,1cyclictest15227-21/usr/sbin/munin21:10:202
12200991715,1cyclictest0-21swapper/220:55:202
12200991714,2cyclictest6544-21proc_pri23:45:202
12200991714,2cyclictest26911-21idleruntime21:30:182
12200991714,2cyclictest18795-21latency_hist20:20:022
12200991714,2cyclictest10667-21munin-plugin-st22:00:002
12200991714,2cyclictest0-21swapper/221:25:002
12200991713,3cyclictest7789-21postgres23:50:102
12200991713,3cyclictest3991-21H222:10:212
1220099170,2cyclictest740-21ntp_kernel_pll_19:45:212
1220099170,2cyclictest740-21ntp_kernel_pll_19:45:202
1220099170,2cyclictest4715-21sed22:45:182
1220099170,2cyclictest4243-21cat19:50:222
1220099170,2cyclictest23604-21expr19:30:142
1220099170,2cyclictest2257-21ntpq00:35:192
1220099170,2cyclictest22450-21cpuspeed_turbos00:15:152
1220099170,2cyclictest0-21swapper/200:25:152
1220099170,16cyclictest9390-21ntp_kernel_err20:00:182
1220099170,16cyclictest4891-21nfsd420:50:202
1220099170,16cyclictest455-21plymouthd20:50:012
1220099170,16cyclictest4092-21pzem_power21:45:232
1220099170,16cyclictest31971-21taskset22:35:232
1220099170,16cyclictest30138-21proc_pri23:30:212
1220099170,16cyclictest26662-21which23:25:152
1220099170,16cyclictest21001-21cstates23:15:132
1220099170,16cyclictest17628-21date19:20:002
1220099170,16cyclictest1486-21snapd21:19:502
1220099170,16cyclictest12051-21awk22:00:202
1220099170,16cyclictest12051-21awk22:00:192
1220099170,16cyclictest10151-21lxd00:34:332
1219999172,1cyclictest21-21ksoftirqd/122:08:411
12199991714,2cyclictest9191-21needreboot21:55:191
12199991714,2cyclictest7545-21cut23:50:001
12199991714,2cyclictest3803-21pzem_current23:40:191
12199991714,2cyclictest3699-21nfsd421:45:201
12199991714,2cyclictest29868-21cat21:35:181
12199991714,2cyclictest27662-21switchtime23:25:211
12199991714,2cyclictest26368-21grep19:35:131
12199991714,2cyclictest26220-21grep00:20:191
12199991714,2cyclictest24845-21cat22:25:151
12199991714,2cyclictest24741-21nfsd421:25:191
12199991714,2cyclictest1516-21lxd20:02:491
12199991714,2cyclictest14888-21ntp_kernel_err00:00:191
12199991714,2cyclictest12227-21proc_pri22:00:201
12199991714,2cyclictest12227-21proc_pri22:00:201
12199991713,3cyclictest0-21swapper/100:37:081
1219999171,1cyclictest22904-21fschecks_time00:15:161
1219999171,15cyclictest143482sleep123:03:411
1219999170,2cyclictest3983-21H222:10:211
1219999170,2cyclictest21866-21ntp_offset23:15:191
1219999170,2cyclictest1955-21nfsd422:40:191
1219999170,2cyclictest1478-21snapd21:00:091
1219999170,16cyclictest7792-21ntp_kernel_err22:50:191
1219999170,16cyclictest455-21plymouthd22:45:191
1219999170,16cyclictest3991-21H222:10:211
1219999170,16cyclictest21086-21anvil22:15:571
1219999170,16cyclictest20291-21latency00:10:181
1219999170,16cyclictest1477-21snapd19:40:091
1219999170,16cyclictest14177-21expr21:09:011
1219999170,16cyclictest0-21swapper/122:39:291
1219999170,16cyclictest0-21swapper/121:32:071
1219899172,1cyclictest0-21swapper/019:55:200
12198991716,1cyclictest9-21ksoftirqd/023:42:450
12198991716,1cyclictest9-21ksoftirqd/021:52:310
12198991714,2cyclictest8699-21fschecks_time21:55:150
12198991714,2cyclictest4035-21H222:10:210
12198991714,2cyclictest3985-21H222:10:210
12198991714,2cyclictest28609-21cron19:44:550
12198991714,2cyclictest19571-21sed23:10:210
12198991714,2cyclictest19170-21cpuspeed_turbos20:20:130
12198991714,2cyclictest16078-21latency_hist00:05:010
12198991714,2cyclictest14848-21nfsd420:10:180
12198991714,2cyclictest1348-21lxd21:16:480
12198991714,2cyclictest13039-21expr19:10:140
12198991714,2cyclictest1079-21cups-browsed19:20:230
12198991714,1cyclictest0-21swapper/022:51:340
12198991713,3cyclictest843-21systemd-network21:42:330
1219899171,1cyclictest0-21swapper/022:58:570
1219899170,2cyclictest3351-21lxd23:36:330
1219899170,2cyclictest25001-21mailstats19:30:210
1219899170,2cyclictest11855-21missed_timers22:00:190
1219899170,2cyclictest11855-21missed_timers22:00:180
1219899170,16cyclictest9434-21nvmesmart_nvme020:00:190
1219899170,16cyclictest3981-21H222:10:210
1219899170,16cyclictest3930-21expr22:45:140
1219899170,16cyclictest17530-21cron19:20:000
1219899170,16cyclictest15530-21fschecks_time23:05:160
1219899170,16cyclictest1523-21lxd19:50:490
1219899170,16cyclictest1484-21snapd21:30:300
1219899170,16cyclictest14708-21nfsd422:05:190
12200991614,1cyclictest0-21swapper/223:20:152
12200991614,1cyclictest0-21swapper/223:00:562
12200991614,1cyclictest0-21swapper/222:25:172
12200991614,1cyclictest0-21swapper/222:20:142
12200991614,1cyclictest0-21swapper/222:10:242
12200991614,1cyclictest0-21swapper/221:50:182
12200991614,1cyclictest0-21swapper/200:10:032
12200991613,2cyclictest31386-21/usr/sbin/munin23:35:112
1220099160,1cyclictest1859-21netstat22:40:192
1220099160,1cyclictest0-21swapper/219:55:182
1220099160,16cyclictest0-21swapper/220:40:142
1220099160,15cyclictest3987-21H222:10:212
1220099160,15cyclictest0-21swapper/222:55:152
1220099160,15cyclictest0-21swapper/222:05:142
1220099160,15cyclictest0-21swapper/221:40:152
1220099160,15cyclictest0-21swapper/221:35:142
1220099160,15cyclictest0-21swapper/220:20:072
1220099160,15cyclictest0-21swapper/219:25:202
1220099160,15cyclictest0-21swapper/200:20:052
12199991614,1cyclictest0-21swapper/123:30:141
12199991614,1cyclictest0-21swapper/119:50:011
12199991614,1cyclictest0-21swapper/119:45:131
12199991614,1cyclictest0-21swapper/119:45:121
12199991613,2cyclictest22356-21ls21:20:211
1219999160,2cyclictest1483-21snapd22:20:081
1219999160,1cyclictest9178-21ntp_kernel_pll_23:50:181
1219999160,15cyclictest5596-21timerwakeupswit20:50:231
1219999160,15cyclictest3989-21H222:10:211
1219999160,15cyclictest30475-21expr20:40:151
1219999160,15cyclictest0-21swapper/123:36:091
1219999160,15cyclictest0-21swapper/123:10:211
1219999160,15cyclictest0-21swapper/121:15:181
1219999160,15cyclictest0-21swapper/120:55:161
1219999160,15cyclictest0-21swapper/120:45:201
1219999160,15cyclictest0-21swapper/120:35:161
1219999160,15cyclictest0-21swapper/119:30:011
1219999160,15cyclictest0-21swapper/119:25:071
12198991614,1cyclictest0-21swapper/023:30:050
12198991614,1cyclictest0-21swapper/022:40:160
12198991614,1cyclictest0-21swapper/022:25:140
12198991614,1cyclictest0-21swapper/021:07:400
12198991614,1cyclictest0-21swapper/020:30:320
12198991614,1cyclictest0-21swapper/000:35:160
12198991614,1cyclictest0-21swapper/000:30:010
12198991614,1cyclictest0-21swapper/000:25:150
12198991613,2cyclictest26619-21ls19:35:140
12198991613,2cyclictest20469-21ntp_kernel_pll_22:15:190
12198991613,2cyclictest14442-21http21:10:010
1219899160,2cyclictest7805-21cat23:50:110
1219899160,1cyclictest321322sleep022:37:290
1219899160,15cyclictest9-21ksoftirqd/021:00:050
1219899160,15cyclictest399-20systemd-journal00:15:040
1219899160,15cyclictest26484-21processes00:20:210
1219899160,15cyclictest24053-21fschecks_count21:25:150
1219899160,15cyclictest21829-21/usr/sbin/munin22:20:150
1219899160,15cyclictest19870-21fschecks_count00:10:140
1219899160,15cyclictest11875-21missed_timers20:05:180
1219899160,15cyclictest0-21swapper/023:45:190
1219899160,15cyclictest0-21swapper/023:25:110
1219899160,15cyclictest0-21swapper/023:15:020
1219899160,15cyclictest0-21swapper/020:55:170
1219899160,15cyclictest0-21swapper/020:45:180
1219899160,15cyclictest0-21swapper/019:45:160
1219899160,15cyclictest0-21swapper/019:45:160
12199991513,1cyclictest17010-21fschecks_count22:10:181
1219999150,1cyclictest0-21swapper/120:20:141
12198991513,1cyclictest0-21swapper/023:02:090
12198991513,1cyclictest0-21swapper/020:40:100
1219899150,1cyclictest28073-21if_eno122:30:160
1219899150,14cyclictest0-21swapper/020:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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