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2025-05-13 - 03:41
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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 Tue May 13, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1972599237,15cyclictest12342-21kernelversion20:50:202
1971699230,5cyclictest0-21swapper/020:00:510
19716992213,5cyclictest0-21swapper/019:57:060
1972599211,19cyclictest0-21swapper/200:30:162
1971699212,18cyclictest0-21swapper/020:24:060
19716992117,3cyclictest0-21swapper/023:47:570
19716992114,6cyclictest0-21swapper/000:35:000
1971699210,20cyclictest0-21swapper/023:05:190
19725992014,3cyclictest0-21swapper/221:35:162
1971699202,17cyclictest0-21swapper/022:35:220
19716992017,1cyclictest0-21swapper/023:40:150
19716992015,4cyclictest0-21swapper/022:45:190
1971699200,18cyclictest4534-21H212:26:330
1972599193,15cyclictest0-21swapper/200:28:272
1972599192,16cyclictest4526-21H212:26:332
19725991917,1cyclictest0-21swapper/222:52:252
19725991917,1cyclictest0-21swapper/222:52:242
19725991915,1cyclictest0-21swapper/221:55:172
1972599190,18cyclictest21406-21head23:00:212
1972599190,16cyclictest4528-21H212:26:332
1972599190,15cyclictest0-21swapper/220:05:182
19720991916,2cyclictest21-21ksoftirqd/123:43:471
19720991916,2cyclictest17727-21latency_hist20:05:011
19720991915,3cyclictest0-21swapper/120:49:281
1972099190,5cyclictest0-21swapper/121:45:531
1972099190,5cyclictest0-21swapper/121:08:431
1972099190,2cyclictest4538-21H212:26:331
1972099190,18cyclictest0-21swapper/119:26:081
1972099190,16cyclictest4526-21H212:26:331
1971699193,15cyclictest28604-21cpuspeed_turbos21:20:150
1971699192,16cyclictest4593-21H212:26:330
1971699192,16cyclictest20058-21expr21:05:160
1971699192,16cyclictest0-21swapper/000:05:260
19716991917,1cyclictest0-21swapper/023:51:100
19716991915,3cyclictest11521-21apt-config00:40:000
1971699191,17cyclictest0-21swapper/020:35:170
1971699190,2cyclictest4538-21H212:26:330
1971699190,18cyclictest0-21swapper/019:45:200
1971699190,18cyclictest0-21swapper/019:45:190
1971699190,16cyclictest4536-21H212:26:330
1972599182,15cyclictest23112-21chrt22:05:512
19725991816,1cyclictest28-21ksoftirqd/223:59:562
19725991814,3cyclictest4593-21H212:26:332
19725991814,3cyclictest4536-21H212:26:332
19725991814,3cyclictest4528-21H212:26:332
19725991814,3cyclictest0-21swapper/223:09:222
1972599180,2cyclictest4538-21H212:26:332
1972599180,2cyclictest4532-21H212:26:332
1972599180,2cyclictest0-21swapper/222:55:152
1972599180,17cyclictest4593-21H212:26:332
1972599180,17cyclictest4593-21H212:26:332
1972599180,17cyclictest4581-21H212:26:332
1972599180,17cyclictest0-21swapper/223:11:542
1972599180,17cyclictest0-21swapper/200:15:172
1972599180,16cyclictest0-21swapper/219:25:402
1972099182,15cyclictest9075-21timerandwakeup19:45:231
1972099182,15cyclictest9075-21timerandwakeup19:45:231
1972099182,15cyclictest0-21swapper/121:55:171
19720991818,0cyclictest0-21swapper/123:35:181
19720991815,2cyclictest4532-21H212:26:331
19720991815,2cyclictest23586-21latency_hist22:10:011
19720991814,3cyclictest4593-21H212:26:331
19720991814,3cyclictest4581-21H212:26:331
19720991814,3cyclictest4523-21H212:26:331
19720991813,2cyclictest4523-21H212:26:331
1972099181,2cyclictest14271-21nfsd423:45:191
1972099181,16cyclictest18569-21switchtime21:00:211
1972099180,2cyclictest4581-21H212:26:331
1972099180,2cyclictest4536-21H212:26:331
1972099180,2cyclictest4536-21H212:26:331
1972099180,2cyclictest4532-21H212:26:331
1972099180,2cyclictest4528-21H212:26:331
1972099180,17cyclictest4593-21H212:26:331
1972099180,16cyclictest4528-21H212:26:331
1972099180,16cyclictest414-20systemd-journal19:45:001
1971699186,11cyclictest0-21swapper/023:17:480
1971699182,1cyclictest0-21swapper/022:00:130
1971699182,15cyclictest168212chrt22:51:550
1971699182,15cyclictest168212chrt22:51:540
1971699182,15cyclictest124272chrt21:49:230
1971699182,15cyclictest0-21swapper/023:30:150
19716991817,1cyclictest15582-21latency_hist21:55:010
19716991816,1cyclictest21453-21expr23:00:210
19716991816,1cyclictest0-21swapper/021:15:010
19716991815,2cyclictest9791-21expr22:40:140
19716991815,2cyclictest8621-21date20:45:020
19716991815,2cyclictest29038-21cat19:25:160
19716991815,2cyclictest28160-21load22:15:180
19716991814,3cyclictest5378-21cat19:40:170
19716991814,3cyclictest4593-21H212:26:330
19716991814,3cyclictest4534-21H212:26:330
19716991814,3cyclictest0-21swapper/023:10:010
1971699181,2cyclictest23219-21cstates19:15:170
1971699181,16cyclictest6496-21cat21:35:240
1971699180,2cyclictest4530-21H212:26:330
1971699180,2cyclictest4526-21H212:26:330
1971699180,17cyclictest4532-21H212:26:330
19725991716,1cyclictest28-21ksoftirqd/220:24:252
19725991715,1cyclictest0-21swapper/223:47:272
19725991715,1cyclictest0-21swapper/219:38:582
19725991715,1cyclictest0-21swapper/219:10:232
19725991714,2cyclictest4581-21H212:26:332
19725991714,2cyclictest4538-21H212:26:332
19725991714,2cyclictest4534-21H212:26:332
19725991714,2cyclictest4526-21H212:26:332
19725991714,2cyclictest3360-21expr22:30:142
19725991714,2cyclictest32595-21nfsd423:20:212
19725991714,2cyclictest23825-21missed_timers19:15:202
19725991714,2cyclictest13611-21hddtemp_smartct21:50:142
19725991714,2cyclictest10894-21grep21:45:172
19725991714,2cyclictest0-21swapper/219:42:012
19725991714,1cyclictest9283-21taskset20:45:182
19725991713,3cyclictest3079-21gmain21:00:132
19725991713,2cyclictest4523-21H212:26:332
1972599170,2cyclictest4534-21H212:26:332
1972599170,2cyclictest4530-21H212:26:332
1972599170,2cyclictest21707-21runrttasks21:07:392
1972599170,1cyclictest4581-21H212:26:332
1972599170,16cyclictest4593-21H212:26:332
1972599170,16cyclictest4593-21H212:26:332
1972599170,16cyclictest4528-21H212:26:332
1972599170,16cyclictest4528-21H212:26:332
1972599170,16cyclictest4528-21H212:26:332
1972599170,16cyclictest25496-21apt-get19:20:162
1972599170,16cyclictest22014-21/usr/sbin/munin00:00:182
1972599170,16cyclictest0-21swapper/221:25:172
1972599170,15cyclictest4581-21H212:26:332
1972599170,15cyclictest0-21swapper/223:53:192
19720991716,1cyclictest21-21ksoftirqd/100:07:511
19720991715,1cyclictest0-21swapper/121:20:231
19720991714,2cyclictest4581-21H212:26:331
19720991714,2cyclictest4534-21H212:26:331
19720991714,2cyclictest4534-21H212:26:331
19720991714,2cyclictest4526-21H212:26:331
19720991714,2cyclictest414-20systemd-journal19:10:421
19720991714,2cyclictest32187-21grep19:30:201
19720991714,2cyclictest27327-21cut22:15:141
19720991714,2cyclictest26879-21/usr/sbin/munin20:20:171
19720991714,2cyclictest23220-21cstates21:10:151
19720991714,2cyclictest2056-21expr23:25:161
19720991714,2cyclictest18461-21/usr/sbin/munin23:55:111
19720991713,3cyclictest4526-21H212:26:331
1972099171,15cyclictest0-21swapper/120:42:061
1972099170,2cyclictest4581-21H212:26:331
1972099170,2cyclictest4538-21H212:26:331
1972099170,2cyclictest4538-21H212:26:331
1972099170,2cyclictest4534-21H212:26:331
1972099170,2cyclictest4532-21H212:26:331
1972099170,2cyclictest19350-21ls22:00:181
1972099170,2cyclictest1405-21lxd00:30:551
1972099170,16cyclictest7885-21open_inodes22:35:211
1972099170,16cyclictest516-21cat00:20:161
1972099170,16cyclictest4532-21H212:26:331
1972099170,16cyclictest4530-21H212:26:331
1972099170,16cyclictest4528-21H212:26:331
1972099170,16cyclictest3736-21cat22:30:151
1972099170,16cyclictest29807-21expr00:15:141
1972099170,16cyclictest12032-21/usr/sbin/munin22:45:211
1972099170,16cyclictest0-21swapper/123:05:031
1972099170,16cyclictest0-21swapper/122:55:471
1972099170,16cyclictest0-21swapper/122:10:351
1972099170,16cyclictest0-21swapper/119:59:241
1972099170,15cyclictest4581-21H212:26:331
19716991714,2cyclictest542-21cstates00:20:150
19716991714,2cyclictest4530-21H212:26:330
19716991714,2cyclictest31149-21grep21:25:130
19716991714,2cyclictest21115-21find22:05:130
19716991714,2cyclictest15971-21cstates21:55:160
1971699171,15cyclictest0-21swapper/000:00:150
1971699170,2cyclictest9987-21apache_accesses19:50:150
1971699170,2cyclictest7448-21chrt21:40:020
1971699170,2cyclictest32339-21find20:30:140
1971699170,2cyclictest26110-21cstates21:15:170
1971699170,2cyclictest0-21swapper/020:50:200
1971699170,1cyclictest0-21swapper/022:59:430
1971699170,16cyclictest412-21cstates22:25:170
1971699170,16cyclictest31587-21cat23:20:150
1971699170,16cyclictest30136-21cat22:20:140
1971699170,16cyclictest29914-21cstates00:15:140
1971699170,16cyclictest25941-21expr19:20:190
1971699170,16cyclictest2302-21basename21:30:170
1971699170,16cyclictest21850-21cstates20:10:170
1971699170,16cyclictest21047-21cat19:10:180
1971699170,16cyclictest1972-21grep19:35:160
1971699170,16cyclictest19146-21df20:05:160
1971699170,16cyclictest17729-21/usr/sbin/munin21:00:160
1971699170,16cyclictest0-21swapper/000:25:160
19725991614,1cyclictest0-21swapper/223:35:162
19725991614,1cyclictest0-21swapper/222:25:162
19725991614,1cyclictest0-21swapper/220:00:172
19725991614,1cyclictest0-21swapper/219:50:172
1972599160,15cyclictest4528-21H212:26:332
1972599160,15cyclictest3334-21expr20:35:172
1972599160,15cyclictest0-21swapper/220:55:152
1972599160,15cyclictest0-21swapper/220:40:192
19720991614,1cyclictest0-21swapper/123:00:181
19720991613,2cyclictest22034-21if_enp1s000:00:171
1972099160,2cyclictest4636-21awk21:35:151
1972099160,15cyclictest2994-21cpuspeed_turbos00:25:151
1972099160,15cyclictest0-21swapper/121:25:151
1971699160,15cyclictest0-21swapper/023:55:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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