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2025-12-28 - 20:09
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Dec 28, 2025 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3063299242,4cyclictest0-21swapper/007:45:010
3063599211,17cyclictest0-21swapper/211:16:372
30632992117,3cyclictest7702-21basename07:25:010
3063599205,13cyclictest0-21swapper/211:12:282
3063599200,19cyclictest0-21swapper/212:38:222
3063599200,19cyclictest0-21swapper/212:38:212
3063399202,1cyclictest0-21swapper/107:45:001
30632992017,2cyclictest6350-21idleruntime-cro10:14:590
30632992016,3cyclictest3053-21systemd-logind08:30:510
3063599192,16cyclictest0-21swapper/210:22:052
30635991914,4cyclictest3983-21H222:10:212
30635991914,2cyclictest3976-21H222:10:212
3063599190,2cyclictest3985-21H222:10:212
3063599190,18cyclictest0-21swapper/211:59:372
3063599190,16cyclictest3991-21H222:10:212
3063599190,16cyclictest3979-21H222:10:212
3063399192,2cyclictest11561-21python311:20:001
30633991914,3cyclictest0-21swapper/112:33:471
3063399190,3cyclictest0-21swapper/111:53:361
3063399190,2cyclictest3987-21H222:10:211
3063399190,16cyclictest3976-21H222:10:211
30632991917,1cyclictest0-21swapper/007:25:140
30632991916,2cyclictest9799-21ntp_offset12:10:190
30632991914,3cyclictest3979-21H222:10:210
3063299191,1cyclictest0-21swapper/012:24:250
3063599182,15cyclictest3985-21H222:10:212
30635991816,1cyclictest28-21ksoftirqd/211:39:032
30635991816,1cyclictest28-21ksoftirqd/207:15:542
30635991816,1cyclictest0-21swapper/211:00:152
30635991814,2cyclictest1521-21lxd09:36:402
3063599181,16cyclictest993-21dbus-daemon09:45:192
3063599181,16cyclictest4035-21H222:10:212
3063599181,16cyclictest3976-21H222:10:212
3063599180,3cyclictest3987-21H222:10:212
3063599180,2cyclictest4099-21H222:10:212
3063599180,2cyclictest3985-21H222:10:212
3063599180,2cyclictest3976-21H222:10:212
3063599180,17cyclictest3979-21H222:10:212
3063599180,17cyclictest3976-21H222:10:212
3063599180,16cyclictest3991-21H222:10:212
3063599180,16cyclictest3987-21H222:10:212
3063599180,15cyclictest3981-21H222:10:212
3063399182,15cyclictest21-21ksoftirqd/109:02:311
30633991816,1cyclictest27663-21nfsd410:50:191
30633991816,1cyclictest0-21swapper/112:16:051
30633991815,2cyclictest31808-21timerandwakeup08:05:221
30633991814,3cyclictest3985-21H222:10:211
30633991814,3cyclictest3981-21H222:10:211
30633991814,3cyclictest0-21swapper/112:37:491
30633991814,3cyclictest0-21swapper/112:37:491
3063399181,2cyclictest3985-21H222:10:211
3063399181,16cyclictest3981-21H222:10:211
3063399180,2cyclictest3991-21H222:10:211
3063399180,2cyclictest3981-21H222:10:211
3063399180,17cyclictest12355-21nfsd409:25:181
3063399180,16cyclictest4099-21H222:10:211
3063399180,16cyclictest4099-21H222:10:211
3063399180,16cyclictest3976-21H222:10:211
30632991816,1cyclictest9-21ksoftirqd/009:07:190
30632991816,1cyclictest9-21ksoftirqd/008:45:400
30632991816,1cyclictest9-21ksoftirqd/007:16:360
30632991814,3cyclictest3981-21H222:10:210
30632991814,3cyclictest3981-21H222:10:210
30632991814,3cyclictest11478-21idleruntime-cro08:30:000
30632991814,3cyclictest0-21swapper/008:15:420
3063299181,16cyclictest26118-21mailstats07:55:220
3063299180,2cyclictest3985-21H222:10:210
3063299180,2cyclictest3976-21H222:10:210
3063299180,17cyclictest3987-21H222:10:210
3063299180,16cyclictest4035-21H222:10:210
3063299180,15cyclictest3981-21H222:10:210
3063299180,15cyclictest3981-21H222:10:210
3063299180,15cyclictest3979-21H222:10:210
3063299180,15cyclictest0-21swapper/011:18:270
3063299180,15cyclictest0-21swapper/007:39:110
30635991715,1cyclictest0-21swapper/207:50:172
30635991714,2cyclictest3991-21H222:10:212
30635991714,2cyclictest3987-21H222:10:212
30635991714,2cyclictest3981-21H222:10:212
30635991714,2cyclictest3317-21apache_accesses11:05:132
30635991714,1cyclictest0-21swapper/210:00:192
30635991713,3cyclictest3991-21H222:10:212
3063599171,15cyclictest0-21swapper/212:10:192
3063599170,2cyclictest9151-21needreboot07:25:162
3063599170,2cyclictest8142-21ntp_kernel_err10:15:192
3063599170,2cyclictest4099-21H222:10:212
3063599170,2cyclictest3985-21H222:10:212
3063599170,2cyclictest3983-21H222:10:212
3063599170,2cyclictest2012-21grep12:00:162
3063599170,2cyclictest1550-21snapd08:30:092
3063599170,2cyclictest0-21swapper/211:50:122
3063599170,1cyclictest3991-21H222:10:212
3063599170,1cyclictest3991-21H222:10:212
3063599170,1cyclictest3987-21H222:10:212
3063599170,16cyclictest4099-21H222:10:212
3063599170,16cyclictest3991-21H222:10:212
3063599170,16cyclictest3979-21H222:10:212
3063599170,16cyclictest3436-21cron10:10:002
3063599170,16cyclictest24834-21missed_timers10:45:192
3063599170,16cyclictest24383-21latency08:50:172
3063599170,16cyclictest21193-21timerwakeupswit12:30:232
3063599170,16cyclictest1829-21systemd-journal08:03:312
3063599170,16cyclictest15397-21sendmail_mailqu09:30:212
3063599170,16cyclictest15397-21sendmail_mailqu09:30:212
3063599170,16cyclictest13765-21pzem_current10:25:182
3063599170,16cyclictest11764-21fschecks_count09:25:152
3063599170,15cyclictest3989-21H222:10:212
3063599170,15cyclictest3976-21H222:10:212
30633991715,1cyclictest0-21swapper/109:21:401
30633991715,1cyclictest0-21swapper/108:48:341
30633991714,2cyclictest769-21mailstats09:05:221
30633991714,2cyclictest6469-21grep09:15:181
30633991714,2cyclictest607-21cut10:05:011
30633991714,2cyclictest5047-21expr08:15:191
30633991714,2cyclictest4035-21H222:10:211
30633991714,2cyclictest3989-21H222:10:211
30633991714,2cyclictest3989-21H222:10:211
30633991714,2cyclictest3987-21H222:10:211
30633991714,2cyclictest31184-21systemctl10:55:201
30633991714,2cyclictest20087-21latency07:45:171
30633991714,2cyclictest17294-21cron11:30:011
30633991714,2cyclictest1490-21snapd08:30:091
30633991714,2cyclictest0-21swapper/109:52:061
3063399171,15cyclictest21-21ksoftirqd/108:55:301
3063399170,2cyclictest5218-21needreboot10:10:191
3063399170,2cyclictest4099-21H222:10:211
3063399170,2cyclictest4035-21H222:10:211
3063399170,2cyclictest3979-21H222:10:211
3063399170,1cyclictest3985-21H222:10:211
3063399170,16cyclictest4035-21H222:10:211
3063399170,16cyclictest399-20systemd-journal07:35:021
3063399170,16cyclictest3987-21H222:10:211
3063399170,16cyclictest3987-21H222:10:211
3063399170,16cyclictest3985-21H222:10:211
3063399170,16cyclictest20417-21cut09:40:181
3063399170,16cyclictest16161-21sendmail_mailqu08:35:221
3063399170,16cyclictest10383-21netstat08:25:181
3063399170,15cyclictest4099-21H222:10:211
3063399170,15cyclictest3989-21H222:10:211
3063299172,1cyclictest9-21ksoftirqd/011:43:060
3063299172,1cyclictest210122chrt07:45:270
30632991715,1cyclictest9-21ksoftirqd/010:30:040
30632991715,1cyclictest3985-21H222:10:210
30632991714,2cyclictest3983-21H222:10:210
30632991714,2cyclictest3976-21H222:10:210
30632991714,2cyclictest3714-21ps12:00:210
30632991714,2cyclictest30970-21ntpq10:55:180
30632991714,2cyclictest27873-21tr09:55:130
30632991714,2cyclictest24313-21latency08:50:160
3063299171,15cyclictest3978-21H222:10:210
3063299170,2cyclictest3989-21H222:10:210
3063299170,2cyclictest3985-21H222:10:210
3063299170,2cyclictest3981-21H222:10:210
3063299170,2cyclictest31977-21expr07:10:150
3063299170,2cyclictest31103-21cron11:55:010
3063299170,2cyclictest30969-21kernelversion08:05:190
3063299170,2cyclictest22900-21cron10:45:010
3063299170,2cyclictest21039-21sendmail_mailst09:40:200
3063299170,2cyclictest1671-21grep11:00:210
3063299170,2cyclictest1486-21snapd09:45:090
3063299170,2cyclictest12091-21latency_hist10:25:010
3063299170,1cyclictest0-21swapper/011:30:500
3063299170,16cyclictest9686-21sed09:20:230
3063299170,16cyclictest3991-21H222:10:210
3063299170,16cyclictest3991-21H222:10:210
3063299170,16cyclictest3985-21H222:10:210
3063299170,16cyclictest3979-21H222:10:210
3063299170,16cyclictest22565-21cpuspeed_turbos12:35:160
3063299170,16cyclictest22565-21cpuspeed_turbos12:35:150
3063299170,16cyclictest17320-21/usr/sbin/munin12:25:170
3063299170,16cyclictest13762-21sed10:25:180
3063299170,15cyclictest3987-21H222:10:210
30635991614,1cyclictest0-21swapper/209:00:142
3063599160,2cyclictest3976-21H222:10:212
3063599160,15cyclictest0-21swapper/211:20:182
3063599160,15cyclictest0-21swapper/210:40:142
3063599160,15cyclictest0-21swapper/208:20:152
3063599160,15cyclictest0-21swapper/207:55:152
30633991614,1cyclictest455-21plymouthd07:10:151
30633991614,1cyclictest0-21swapper/108:00:161
30633991613,2cyclictest24119-21cat10:45:141
3063399160,1cyclictest0-21swapper/107:20:181
3063399160,15cyclictest6271-21nfsd412:05:181
3063399160,15cyclictest3985-21H222:10:211
3063399160,15cyclictest32272-21idleruntime11:55:141
3063399160,15cyclictest28682-21load09:55:181
3063399160,15cyclictest23187-21latency09:45:161
3063399160,15cyclictest1047-21cat10:05:141
3063399160,15cyclictest0-21swapper/112:20:171
3063399160,15cyclictest0-21swapper/111:05:161
3063399160,15cyclictest0-21swapper/107:55:221
3063399160,15cyclictest0-21swapper/107:25:021
30632991614,1cyclictest9-21ksoftirqd/011:21:540
30632991614,1cyclictest0-21swapper/011:25:210
30632991614,1cyclictest0-21swapper/009:10:070
3063299160,2cyclictest6175-21cat12:05:180
3063299160,1cyclictest64122chrt08:20:030
3063299160,1cyclictest3983-21H222:10:210
3063299160,15cyclictest20902-21mailstats12:30:220
3063299160,15cyclictest1441-21sendmail-mta09:30:120
3063299160,15cyclictest1441-21sendmail-mta09:30:120
3063299160,15cyclictest0-21swapper/010:15:130
30635991514,1cyclictest0-21swapper/208:25:142
30633991514,1cyclictest0-21swapper/111:33:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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