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2025-12-18 - 23:01
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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 Thu Dec 18, 2025 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1605299263,18cyclictest0-21swapper/012:00:000
1605499241,15cyclictest0-21swapper/209:00:142
1605499214,3cyclictest0-21swapper/210:22:502
1605499214,16cyclictest0-21swapper/211:46:512
16054992117,3cyclictest0-21swapper/208:44:232
16054992117,3cyclictest0-21swapper/207:58:502
16054992117,2cyclictest2030-21sessionclean08:39:012
1605499210,19cyclictest399-20systemd-journal08:25:002
16052992117,2cyclictest3981-21H222:10:210
1605299210,4cyclictest0-21swapper/010:55:000
16054992016,3cyclictest0-21swapper/212:35:112
16054992016,3cyclictest0-21swapper/210:07:202
16054992014,5cyclictest0-21swapper/211:02:392
16054992014,5cyclictest0-21swapper/211:02:392
1605399203,16cyclictest19205-21cpuspeed_turbos07:15:111
16054991915,3cyclictest0-21swapper/208:51:042
1605499190,16cyclictest3991-21H222:10:212
1605399193,16cyclictest0-21swapper/110:40:591
1605399193,15cyclictest3981-21H222:10:211
1605399192,16cyclictest0-21swapper/110:09:121
16053991916,2cyclictest16802-21ntp_offset08:05:171
16053991915,3cyclictest0-21swapper/109:07:371
1605399191,17cyclictest0-21swapper/109:37:561
1605399190,18cyclictest0-21swapper/109:20:141
1605399190,16cyclictest3981-21H222:10:211
16052991917,1cyclictest0-21swapper/012:16:050
1605299190,18cyclictest0-21swapper/009:04:560
1605499182,1cyclictest1159-21apt-key07:40:012
1605499182,15cyclictest211002chrt07:16:182
16054991816,1cyclictest0-21swapper/209:52:072
16054991815,2cyclictest3983-21H222:10:212
16054991815,2cyclictest3244-21apt11:35:002
16054991814,3cyclictest3351-21lxd10:46:402
16054991814,3cyclictest0-21swapper/211:26:172
1605499181,2cyclictest14384-21timerandwakeup11:50:222
1605499180,3cyclictest4228-21cpuspeed_turbos09:40:132
1605499180,3cyclictest4228-21cpuspeed_turbos09:40:132
1605499180,2cyclictest3981-21H222:10:212
1605499180,2cyclictest3976-21H222:10:212
1605499180,17cyclictest18711-21fschecks_count12:00:152
1605499180,16cyclictest810-21dpkg07:40:012
1605399184,12cyclictest0-21swapper/111:15:151
1605399182,2cyclictest26124-21expr07:25:181
16053991815,2cyclictest2743-21timerwakeupswit11:30:221
16053991813,2cyclictest3989-21H222:10:211
1605399180,3cyclictest7082-21ps08:45:191
1605399180,2cyclictest3991-21H222:10:211
1605399180,17cyclictest3991-21H222:10:211
1605399180,17cyclictest3981-21H222:10:211
1605399180,17cyclictest3981-21H222:10:211
1605399180,17cyclictest3954-21VM22:10:211
1605399180,16cyclictest3991-21H222:10:211
16052991816,1cyclictest3982-21H222:10:210
16052991816,1cyclictest0-21swapper/012:27:340
16052991816,1cyclictest0-21swapper/010:02:420
16052991815,2cyclictest15006-21nfsd410:55:150
16052991815,2cyclictest14313-21switchtime11:50:220
16052991814,3cyclictest3981-21H222:10:210
1605299181,2cyclictest1347-21lxd07:25:570
1605299181,16cyclictest10889-21cat09:50:160
1605299180,3cyclictest1484-21snapd08:12:390
1605299180,17cyclictest3983-21H222:10:210
1605299180,16cyclictest3979-21H222:10:210
16054991715,1cyclictest2970-21cpuspeed_turbos12:30:122
16054991715,1cyclictest28-21ksoftirqd/210:11:582
16054991715,1cyclictest0-21swapper/210:40:172
16054991714,2cyclictest4532-21cstates11:35:142
16054991714,2cyclictest427-21cat12:25:132
16054991714,2cyclictest3989-21H222:10:212
16054991714,2cyclictest3985-21H222:10:212
16054991714,2cyclictest30821-21awk12:20:192
16054991714,2cyclictest2795-21expr10:35:142
16054991714,2cyclictest26097-21nfsd411:15:182
16054991714,2cyclictest19412-21/usr/sbin/munin09:10:222
16054991714,2cyclictest17684-21munin-plugin-st12:00:002
16054991714,2cyclictest14239-21sendmail_mailst08:00:202
1605499171,1cyclictest18122sleep210:32:562
1605499171,15cyclictest137732sleep210:55:062
1605499170,2cyclictest8365-21needreboot07:50:192
1605499170,2cyclictest8084-21kernelversion11:40:182
1605499170,2cyclictest6357-21apt-get09:45:012
1605499170,2cyclictest3991-21H222:10:212
1605499170,2cyclictest20270-21chrt08:10:482
1605499170,2cyclictest11528-21expr08:55:132
1605499170,2cyclictest0-21swapper/207:45:152
1605499170,1cyclictest3983-21H222:10:212
1605499170,16cyclictest5623-21apache_accesses08:45:102
1605499170,16cyclictest30601-21grep10:25:182
1605499170,16cyclictest27747-21kernelversion12:15:182
1605499170,16cyclictest22948-21awk09:15:162
1605499170,16cyclictest22217-21expr07:20:132
1605499170,16cyclictest17250-21ls08:05:202
1605499170,15cyclictest0-21swapper/212:10:192
16053991715,1cyclictest21-21ksoftirqd/110:21:341
16053991715,1cyclictest0-21swapper/112:37:111
16053991715,1cyclictest0-21swapper/112:10:011
16053991714,3cyclictest0-21swapper/112:29:191
16053991714,2cyclictest3987-21H222:10:211
16053991714,2cyclictest3987-21H222:10:211
16053991714,2cyclictest3987-21H222:10:211
16053991714,2cyclictest3985-21H222:10:211
16053991714,2cyclictest30778-21/usr/sbin/munin12:20:201
16053991714,2cyclictest29945-21idleruntime-cro11:25:001
16053991714,2cyclictest28302-21fschecks_time07:30:151
16053991714,2cyclictest28302-21fschecks_time07:30:151
16053991714,2cyclictest19917-21expr09:10:151
16053991714,2cyclictest18408-21sed11:00:231
16053991714,2cyclictest18408-21sed11:00:221
16053991714,2cyclictest18099-21grep12:00:141
16053991714,2cyclictest10094-21sed08:50:221
1605399171,15cyclictest0-21swapper/108:43:301
1605399170,2cyclictest3976-21H222:10:211
1605399170,2cyclictest15341-21sendmail_mailqu10:55:181
1605399170,1cyclictest3985-21H222:10:211
1605399170,16cyclictest7481-21expr09:45:131
1605399170,16cyclictest4884-21if_err_enp1s009:40:151
1605399170,16cyclictest4884-21if_err_enp1s009:40:151
1605399170,16cyclictest4035-21H222:10:211
1605399170,16cyclictest3987-21H222:10:211
1605399170,16cyclictest3981-21H222:10:211
1605399170,16cyclictest3976-21H222:10:211
1605399170,16cyclictest2946-21expr10:35:141
1605399170,16cyclictest27487-21latency08:25:181
1605399170,16cyclictest27302-21expr12:15:141
1605399170,16cyclictest22189-21cut10:10:181
1605399170,16cyclictest1057-21cron08:35:011
16052991717,0cyclictest0-21swapper/007:50:030
16052991715,1cyclictest9-21ksoftirqd/008:41:370
16052991714,2cyclictest8973-21fschecks_count08:50:150
16052991714,2cyclictest7342-21grep09:45:130
16052991714,2cyclictest6434-21fschecks_count12:35:120
16052991714,2cyclictest3979-21H222:10:210
16052991714,2cyclictest32426-21cat10:30:150
16052991714,2cyclictest31683-21nfsd407:35:180
16052991714,2cyclictest31519-21turbostat08:39:570
16052991714,2cyclictest30581-21ntpq08:30:180
16052991714,2cyclictest29004-21ntpq09:25:180
16052991714,2cyclictest25487-21ntp_offset12:10:190
16052991714,2cyclictest19450-21ntpq10:05:170
16052991714,2cyclictest17887-21grep11:00:180
16052991714,2cyclictest17887-21grep11:00:180
16052991713,3cyclictest3989-21H222:10:210
1605299171,15cyclictest3991-21H222:10:210
1605299171,15cyclictest3991-21H222:10:210
1605299170,2cyclictest4035-21H222:10:210
1605299170,2cyclictest3981-21H222:10:210
1605299170,2cyclictest3414-21master09:17:010
1605299170,2cyclictest24242-21bounce11:12:190
1605299170,2cyclictest22725-21sed12:05:190
1605299170,2cyclictest22176-21expr07:20:130
1605299170,1cyclictest0-21swapper/007:32:450
1605299170,1cyclictest0-21swapper/007:32:450
1605299170,16cyclictest3983-21H222:10:210
1605299170,16cyclictest27210-21perf11:20:000
1605299170,16cyclictest24596-21/usr/sbin/munin10:15:140
1605299170,16cyclictest21451-21expr10:10:140
1605299170,16cyclictest1485-21snapd07:12:390
1605299170,16cyclictest1166-21expr11:30:140
16054991614,1cyclictest0-21swapper/212:05:012
16054991614,1cyclictest0-21swapper/211:20:142
16054991614,1cyclictest0-21swapper/210:00:132
16054991614,1cyclictest0-21swapper/209:20:152
16054991614,1cyclictest0-21swapper/209:05:142
1605499160,1cyclictest0-21swapper/210:15:122
1605499160,15cyclictest30888-21expr09:30:142
1605499160,15cyclictest0-21swapper/211:10:142
1605499160,15cyclictest0-21swapper/211:05:192
1605499160,15cyclictest0-21swapper/210:50:142
1605499160,15cyclictest0-21swapper/207:30:182
1605499160,15cyclictest0-21swapper/207:30:172
16053991614,1cyclictest25630-21pzem_power12:10:211
16053991614,1cyclictest13062-21cat08:00:131
16053991614,1cyclictest0-21swapper/111:55:131
16053991614,1cyclictest0-21swapper/111:40:161
16053991614,1cyclictest0-21swapper/111:10:091
16053991614,1cyclictest0-21swapper/110:25:141
16053991614,1cyclictest0-21swapper/109:55:071
16053991614,1cyclictest0-21swapper/109:50:041
1605399160,15cyclictest9065-21hddtemp_smartct10:45:141
1605399160,15cyclictest5228-21latency11:35:171
1605399160,15cyclictest4826-21expr07:45:151
1605399160,15cyclictest3985-21H222:10:211
1605399160,15cyclictest32009-21ls08:35:151
1605399160,15cyclictest0-21swapper/111:45:151
1605399160,15cyclictest0-21swapper/111:25:141
1605399160,15cyclictest0-21swapper/110:35:001
16052991614,1cyclictest31057-21timerwakeupswit10:25:220
16052991614,1cyclictest2714-21expr10:35:140
16052991614,1cyclictest19166-21sed12:00:180
16052991614,1cyclictest10055-21cpuspeed_turbos11:45:140
16052991614,1cyclictest0-21swapper/011:25:140
16052991614,1cyclictest0-21swapper/011:05:170
16052991614,1cyclictest0-21swapper/010:20:060
16052991614,1cyclictest0-21swapper/009:20:140
16052991614,1cyclictest0-21swapper/008:45:110
16052991614,1cyclictest0-21swapper/007:45:190
16052991613,2cyclictest9566-21awk10:45:170
1605299160,2cyclictest3287-21ls12:30:120
1605299160,1cyclictest6816-21/usr/sbin/munin10:40:180
1605299160,1cyclictest0-21swapper/011:40:240
1605299160,15cyclictest29669-21cpuspeed_turbos12:20:140
1605299160,15cyclictest0-21swapper/011:35:010
1605299160,15cyclictest0-21swapper/011:20:140
1605299160,15cyclictest0-21swapper/009:35:140
1605299160,15cyclictest0-21swapper/007:42:580
16052991513,1cyclictest3989-21H222:10:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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