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2025-12-06 - 16:09
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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 Sat Dec 06, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1205499250,1cyclictest4530-21H212:26:332
1205499243,20cyclictest4536-21H212:26:332
1204999240,9cyclictest27015-21pluginstate12:20:000
1205499233,5cyclictest0-21swapper/212:35:472
1205499232,2cyclictest3812-21missed_timers07:50:192
12054992317,5cyclictest0-21swapper/208:15:252
1205499230,2cyclictest12738-21expr07:10:152
1205499230,22cyclictest0-21swapper/208:14:052
1205499230,1cyclictest0-21swapper/207:38:332
1204999230,5cyclictest0-21swapper/011:10:310
12054992214,7cyclictest24079-21cat09:25:012
1205499221,1cyclictest0-21swapper/211:35:152
1205499221,1cyclictest0-21swapper/207:26:482
1205499220,2cyclictest29942-21latency10:30:192
1205499220,2cyclictest27382-21expr09:30:192
1205499220,2cyclictest27070-21cat12:20:002
1205499220,2cyclictest21278-21proc_pri08:20:202
1205499220,2cyclictest19083-21grep07:20:182
1205499220,2cyclictest11840-21ntpq11:50:182
1205499220,21cyclictest8092-21expr11:45:162
1205499220,21cyclictest723-21df_inode09:40:152
1205499220,20cyclictest0-21swapper/210:10:142
1205499220,1cyclictest179472chrt09:10:472
1205499220,1cyclictest0-21swapper/209:05:232
1205499220,1cyclictest0-21swapper/209:00:232
1205499220,1cyclictest0-21swapper/208:05:162
1205499220,1cyclictest0-21swapper/207:30:232
1205499220,18cyclictest0-21swapper/209:55:282
1205499220,18cyclictest0-21swapper/208:29:522
1205499220,16cyclictest30670-21latency_hist08:40:012
1205499220,16cyclictest21111-21cat10:15:152
1205499210,2cyclictest886-21grep07:45:192
1205499210,2cyclictest7782-21munin-run10:50:012
1205499210,2cyclictest4530-21H212:26:332
1205499210,2cyclictest32140-21ls10:35:152
1205499210,2cyclictest20396-21switchtime12:05:232
1205499210,20cyclictest4581-21H212:26:332
1205499210,20cyclictest30346-21grep09:35:172
1205499210,20cyclictest2350-21awk12:30:202
1205499210,20cyclictest0-21swapper/211:00:212
1205499210,20cyclictest0-21swapper/210:00:012
1205499210,1cyclictest30921-21apache_volume08:40:132
1205499210,1cyclictest0-21swapper/212:25:202
1205499210,1cyclictest0-21swapper/211:25:362
1205499210,1cyclictest0-21swapper/210:50:152
1205499210,1cyclictest0-21swapper/210:25:152
1205499210,1cyclictest0-21swapper/209:50:022
1205499210,16cyclictest14550-21grep11:55:192
1205499210,16cyclictest14550-21grep11:55:182
12050992112,6cyclictest0-21swapper/109:10:341
12054992014,5cyclictest5969-21apt-get07:55:152
12054992014,5cyclictest0-21swapper/208:50:252
12054992014,5cyclictest0-21swapper/208:00:122
12054992013,6cyclictest25999-21http_loadtime08:30:182
12054992013,6cyclictest25999-21http_loadtime08:30:182
12054992012,7cyclictest28407-21awk12:20:152
12054992012,7cyclictest28407-21awk12:20:152
1205499200,2cyclictest4530-21H212:26:332
1205499200,2cyclictest2868-21expr10:40:162
1205499200,1cyclictest0-21swapper/211:30:192
1205499200,1cyclictest0-21swapper/210:55:252
1205499200,1cyclictest0-21swapper/210:05:152
1205499200,1cyclictest0-21swapper/209:45:142
1205499200,1cyclictest0-21swapper/209:25:162
1205499200,1cyclictest0-21swapper/208:55:202
1205499200,16cyclictest4581-21H212:26:332
1205499200,15cyclictest1600-21ls08:45:162
1205099200,5cyclictest0-21swapper/109:16:031
12049992016,3cyclictest0-21swapper/008:50:240
12049992015,5cyclictest0-21swapper/008:40:010
1205499190,1cyclictest0-21swapper/210:20:192
1205499190,18cyclictest0-21swapper/212:00:162
1205499190,18cyclictest0-21swapper/211:40:012
1205499190,0cyclictest0-21swapper/207:40:132
12050991916,2cyclictest4528-21H212:26:331
1205099190,16cyclictest4581-21H212:26:331
1205099190,16cyclictest4530-21H212:26:331
1204999193,15cyclictest0-21swapper/008:14:190
12049991916,2cyclictest4593-21H212:26:330
12049991914,2cyclictest4523-21H212:26:330
1204999190,18cyclictest0-21swapper/009:04:010
1204999190,16cyclictest4538-21H212:26:330
1204999190,16cyclictest4523-21H212:26:330
12050991814,3cyclictest7296-21snapd10:56:491
12050991814,3cyclictest10146-21uname09:55:171
12050991813,4cyclictest0-21swapper/110:14:181
1205099181,16cyclictest4594-21H212:26:331
1205099180,4cyclictest0-21swapper/111:02:071
1205099180,3cyclictest4526-21H212:26:331
1205099180,2cyclictest4530-21H212:26:331
1205099180,2cyclictest4526-21H212:26:331
1205099180,2cyclictest4526-21H212:26:331
1205099180,2cyclictest4526-21H212:26:331
1205099180,17cyclictest4581-21H212:26:331
1205099180,15cyclictest4593-21H212:26:331
1205099180,15cyclictest4532-21H212:26:331
1204999183,1cyclictest9-21ksoftirqd/007:13:010
12049991816,1cyclictest0-21swapper/007:55:140
12049991815,2cyclictest22573-21expr11:15:130
12049991814,3cyclictest4593-21H212:26:330
12049991814,3cyclictest4536-21H212:26:330
12049991814,3cyclictest30008-21snapd10:56:490
12049991814,2cyclictest4526-21H212:26:330
1204999180,2cyclictest4530-21H212:26:330
1204999180,2cyclictest4530-21H212:26:330
1204999180,1cyclictest4538-21H212:26:330
1204999180,1cyclictest0-21swapper/008:06:350
1204999180,17cyclictest4534-21H212:26:330
1204999180,17cyclictest4530-21H212:26:330
1204999180,15cyclictest4581-21H212:26:330
12050991716,1cyclictest0-21swapper/108:56:251
12050991714,2cyclictest970-21dbus-daemon11:35:221
12050991714,2cyclictest4538-21H212:26:331
12050991714,2cyclictest4534-21H212:26:331
12050991714,2cyclictest31977-21expr09:39:001
12050991714,2cyclictest26865-21expr07:35:161
12050991714,2cyclictest25116-21mailstats10:20:211
12050991714,2cyclictest24890-21nfsd407:30:201
12050991714,2cyclictest15136-21/usr/sbin/munin07:15:151
12050991714,2cyclictest13523-21sed07:10:191
12050991714,2cyclictest0-21swapper/110:54:391
12050991713,3cyclictest4528-21H212:26:331
12050991713,3cyclictest4523-21H212:26:331
1205099170,2cyclictest7503-21pzem07:55:231
1205099170,2cyclictest5370-21munin-run07:55:021
1205099170,2cyclictest4581-21H212:26:331
1205099170,2cyclictest4534-21H212:26:331
1205099170,2cyclictest4534-21H212:26:331
1205099170,2cyclictest4532-21H212:26:331
1205099170,2cyclictest4528-21H212:26:331
1205099170,2cyclictest4523-21H212:26:331
1205099170,2cyclictest24374-21cut09:25:141
1205099170,2cyclictest1402-21lxd09:03:061
1205099170,1cyclictest4536-21H212:26:331
1205099170,16cyclictest995-21irqbalance08:12:021
1205099170,16cyclictest5756-21nfsd408:50:221
1205099170,16cyclictest4593-21H212:26:331
1205099170,16cyclictest4593-21H212:26:331
1205099170,16cyclictest4534-21H212:26:331
1205099170,16cyclictest3441-21gsd-color09:40:151
1205099170,16cyclictest1059-21cups-browsed12:20:001
1205099170,16cyclictest1059-21cups-browsed12:20:001
12049991715,1cyclictest9-21ksoftirqd/009:55:180
12049991714,2cyclictest4538-21H212:26:330
12049991714,2cyclictest4536-21H212:26:330
12049991714,2cyclictest4534-21H212:26:330
12049991714,2cyclictest4532-21H212:26:330
12049991714,2cyclictest4527-21H212:26:330
12049991714,2cyclictest4526-21H212:26:330
12049991714,2cyclictest4523-21H212:26:330
12049991714,2cyclictest23303-21sort07:30:000
12049991714,2cyclictest20885-21cut07:25:010
12049991712,4cyclictest0-21swapper/010:48:450
1204999171,15cyclictest0-21swapper/009:40:230
1204999170,2cyclictest970-21dbus-daemon08:25:230
1204999170,2cyclictest5329-21grep12:35:350
1204999170,2cyclictest4593-21H212:26:330
1204999170,2cyclictest4538-21H212:26:330
1204999170,1cyclictest4581-21H212:26:330
1204999170,16cyclictest970-21dbus-daemon12:20:000
1204999170,16cyclictest970-21dbus-daemon12:20:000
1204999170,16cyclictest5030-21wc11:40:140
1204999170,16cyclictest4702-21cat09:45:190
1204999170,16cyclictest4593-21H212:26:330
1204999170,16cyclictest4538-21H212:26:330
1204999170,16cyclictest4538-21H212:26:330
1204999170,16cyclictest4532-21H212:26:330
1204999170,16cyclictest3799-21missed_timers07:50:190
1204999170,16cyclictest3707-21lxd07:35:060
1204999170,16cyclictest30894-21sendmail_mailqu07:40:200
1204999170,16cyclictest30005-21snapd07:34:190
1204999170,16cyclictest14956-21/usr/sbin/munin11:00:190
1204999170,16cyclictest0-21swapper/008:15:520
12050991614,1cyclictest0-21swapper/109:20:451
12050991614,1cyclictest0-21swapper/108:40:141
12050991614,1cyclictest0-21swapper/108:30:171
12050991614,1cyclictest0-21swapper/108:30:161
12050991614,1cyclictest0-21swapper/108:00:151
1205099160,1cyclictest3817-21df09:45:151
1205099160,1cyclictest21898-21grep07:25:171
1205099160,1cyclictest0-21swapper/112:00:561
1205099160,15cyclictest4083-21/usr/sbin/munin12:35:301
1205099160,15cyclictest3076-21rs:main1
1205099160,15cyclictest29976-21fschecks_count07:40:151
1205099160,15cyclictest28537-21sensors09:30:261
1205099160,15cyclictest18001-21grep07:20:141
1205099160,15cyclictest0-21swapper/110:00:021
1205099160,15cyclictest0-21swapper/109:08:421
1205099160,15cyclictest0-21swapper/108:45:171
1205099160,15cyclictest0-21swapper/108:25:111
1205099160,15cyclictest0-21swapper/107:45:151
12049991614,1cyclictest21474-21dpkg09:20:120
12049991614,1cyclictest0-21swapper/009:15:130
12049991614,1cyclictest0-21swapper/009:05:160
12049991614,1cyclictest0-21swapper/008:40:160
12049991614,1cyclictest0-21swapper/008:20:180
12049991614,1cyclictest0-21swapper/008:00:150
1204999160,15cyclictest4534-21H212:26:330
1204999160,15cyclictest26110-21/usr/sbin/munin09:25:220
1204999160,15cyclictest17182-21nfsd409:10:190
1204999160,15cyclictest0-21swapper/008:30:160
1204999160,15cyclictest0-21swapper/008:30:150
1204999160,15cyclictest0-21swapper/007:45:140
1205099150,14cyclictest0-21swapper/108:20:091
12049991513,1cyclictest0-21swapper/009:30:170
12049991513,1cyclictest0-21swapper/008:45:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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