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2026-04-16 - 15:14
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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 Apr 16, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10739992610,1cyclictest21-21ksoftirqd/108:58:251
1073999240,21cyclictest26997-21grep10:30:161
1073999240,19cyclictest17228-21grep11:10:161
1074599236,11cyclictest0-21swapper/211:54:252
1074599214,16cyclictest0-21swapper/208:01:512
1074599212,16cyclictest8828-21fschecks_count10:55:152
1073999212,18cyclictest16076-21perf07:20:011
1073999210,17cyclictest0-21swapper/112:22:021
1073999202,15cyclictest0-21swapper/112:00:491
10739992017,2cyclictest0-21swapper/107:45:181
10739992017,2cyclictest0-21swapper/107:45:171
10739992016,3cyclictest0-21swapper/109:37:201
1073999200,19cyclictest17766-21latency_hist10:15:011
1074599193,15cyclictest31450-21smtpd08:41:012
1074599192,1cyclictest0-21swapper/211:35:142
10745991917,1cyclictest0-21swapper/211:02:342
1073999192,16cyclictest880-21rs:main1
1073999192,16cyclictest20460-21apache208:25:011
1073999192,16cyclictest0-21swapper/111:41:101
1073999192,16cyclictest0-21swapper/111:41:101
10739991917,1cyclictest0-21swapper/110:24:051
10739991916,2cyclictest30816-21cpuspeed_turbos09:40:131
10739991915,1cyclictest0-21swapper/111:20:011
10739991914,4cyclictest0-21swapper/110:36:541
1073999190,3cyclictest0-21swapper/107:52:291
1073399192,16cyclictest13714-21nfsd412:00:170
1073399190,5cyclictest0-21swapper/012:15:520
1074599182,15cyclictest9161-21taskset09:57:032
1074599182,15cyclictest24831-21nfsd412:20:182
1074599182,15cyclictest0-21swapper/210:13:172
1074599182,15cyclictest0-21swapper/208:56:372
1074599181,16cyclictest14557-21chrt12:01:502
1074599180,17cyclictest18134-21cpuspeed_turbos08:20:142
1074599180,16cyclictest19722-21cpuspeed_turbos09:20:132
1073999182,1cyclictest31335-21timerwakeupswit08:40:221
1073999182,1cyclictest3032-21sed09:45:211
1073999182,15cyclictest0-21swapper/107:30:411
10739991816,1cyclictest0-21swapper/112:19:141
10739991815,2cyclictest0-21swapper/110:45:201
10739991815,1cyclictest0-21swapper/112:37:481
10739991814,3cyclictest20169-21grep09:20:141
1073999181,2cyclictest24617-21latency10:25:171
1073999181,16cyclictest28905-21sed12:30:011
1073999181,16cyclictest23102-21cat11:20:181
1073999181,16cyclictest11521-21cstates09:05:141
1073999180,3cyclictest4190-21cstates11:45:141
1073999180,17cyclictest26739-21/usr/sbin/munin11:25:231
1073999180,16cyclictest0-21swapper/110:18:521
1073399182,15cyclictest0-21swapper/008:12:380
1073399180,3cyclictest2007-21systemd-journal11:08:520
1073399180,1cyclictest0-21swapper/008:40:130
1073399180,16cyclictest1522-21lxd08:30:410
1074599175,11cyclictest0-21swapper/211:19:222
1074599172,1cyclictest3976-21H222:10:212
1074599172,1cyclictest3976-21H222:10:212
10745991715,1cyclictest201592chrt10:15:452
10745991715,1cyclictest0-21swapper/208:30:172
10745991714,2cyclictest3979-21H222:10:212
10745991714,2cyclictest3149-21df10:45:162
10745991714,2cyclictest28836-21awk11:30:182
10745991714,2cyclictest26972-21fschecks_count12:25:122
10745991714,2cyclictest17015-21threads08:15:222
10745991714,2cyclictest1515-21lxd07:26:402
10745991714,2cyclictest13505-21cat08:10:172
10745991714,2cyclictest1-21systemd08:38:522
10745991713,3cyclictest23842-21grep10:25:122
1074599170,2cyclictest9737-21/usr/sbin/munin11:55:122
1074599170,2cyclictest23668-21sendmail_mailtr11:20:212
1074599170,2cyclictest14762-21sed07:15:172
1074599170,2cyclictest13310-21idleruntime10:05:162
1074599170,2cyclictest11174-21/usr/sbin/munin09:05:132
1074599170,16cyclictest843-21systemd-network10:22:442
1074599170,16cyclictest6811-21latency_hist08:00:012
1074599170,16cyclictest2943-21cpuspeed_turbos08:50:142
1074599170,16cyclictest24666-21/usr/sbin/munin07:35:122
1074599170,16cyclictest17128-21expr11:10:152
1074599170,16cyclictest0-21swapper/207:24:052
10739991715,1cyclictest0-21swapper/111:00:141
10739991715,1cyclictest0-21swapper/109:15:061
10739991714,2cyclictest7796-21hddtemp_smartct09:55:141
10739991714,2cyclictest28586-21sort07:40:131
10739991714,2cyclictest27499-21chrt11:30:091
10739991714,2cyclictest15216-21/usr/sbin/munin12:05:151
10739991714,2cyclictest12686-21cpuspeed_turbos10:05:151
10739991714,2cyclictest10977-21awk11:55:171
1073999171,2cyclictest10725-21cyclictest09:10:131
1073999171,1cyclictest21075-21cat07:25:201
1073999170,2cyclictest8800-21df10:55:151
1073999170,2cyclictest8515-21mailstats08:00:201
1073999170,2cyclictest843-21systemd-network10:40:131
1073999170,2cyclictest5839-21cat07:55:211
1073999170,2cyclictest3987-21H222:10:211
1073999170,2cyclictest24237-21ls08:30:141
1073999170,2cyclictest14921-21expr11:05:181
1073999170,2cyclictest12943-21cstates08:10:131
1073999170,2cyclictest11310-21expr07:10:121
1073999170,1cyclictest0-21swapper/110:00:191
1073999170,1cyclictest0-21swapper/109:25:121
1073999170,16cyclictest9873-21cpuspeed_turbos08:05:151
1073999170,16cyclictest8973-21cstates09:00:121
1073999170,16cyclictest7047-21dpkg11:50:121
1073999170,16cyclictest455-21plymouthd08:35:051
1073999170,16cyclictest4368-21apache_volume09:50:101
1073999170,16cyclictest32307-21cpuspeed_turbos08:45:131
1073999170,16cyclictest30830-21df11:35:151
1073999170,16cyclictest29078-21grep12:30:121
1073999170,16cyclictest2668-21find08:50:111
1073999170,16cyclictest26025-21grep07:35:191
1073999170,16cyclictest25444-21expr09:30:131
1073999170,16cyclictest25444-21expr09:30:121
1073999170,16cyclictest21361-21ls08:25:141
1073999170,16cyclictest15274-21apache_volume08:15:111
1073399172,9cyclictest27290-21munin-run07:40:000
1073399172,1cyclictest0-21swapper/011:12:090
10733991715,1cyclictest0-21swapper/012:11:130
10733991715,1cyclictest0-21swapper/007:25:120
10733991715,1cyclictest0-21swapper/007:10:160
10733991714,2cyclictest6933-21/usr/sbin/munin08:00:110
10733991714,2cyclictest3450-21gsd-color10:40:170
10733991714,2cyclictest10873-21nfsd408:05:190
10733991714,2cyclictest10151-21lxd07:44:410
10733991714,1cyclictest0-21swapper/007:50:180
10733991713,1cyclictest0-21swapper/012:20:010
1073399171,15cyclictest8937-21http_loadtime10:55:170
1073399171,15cyclictest0-21swapper/009:25:160
1073399170,2cyclictest958-21cut11:40:140
1073399170,2cyclictest958-21cut11:40:140
1073399170,2cyclictest8876-21expr09:00:120
1073399170,2cyclictest3985-21H222:10:210
1073399170,2cyclictest32517-21timerwakeupswit09:40:210
1073399170,2cyclictest20981-21grep09:20:190
1073399170,2cyclictest10467-21which11:55:150
1073399170,16cyclictest8301-21nfsd409:55:180
1073399170,16cyclictest19213-21grep08:20:170
1073399170,16cyclictest16035-21cron07:20:020
1073399170,16cyclictest1523-21lxd10:38:410
1073399170,16cyclictest14942-21if_lxdbr009:10:160
1073399170,16cyclictest13956-21cpuspeed_turbos07:15:140
1073399170,16cyclictest1351-21lxd11:38:410
1073399170,16cyclictest12405-21nfsd409:05:190
1073399170,16cyclictest10151-21lxd10:48:400
10745991614,1cyclictest25493-21ls09:30:142
10745991614,1cyclictest25493-21ls09:30:132
10745991614,1cyclictest0-21swapper/212:15:122
10745991614,1cyclictest0-21swapper/211:47:052
10745991614,1cyclictest0-21swapper/211:25:212
10745991614,1cyclictest0-21swapper/211:05:162
10745991614,1cyclictest0-21swapper/210:50:022
10745991614,1cyclictest0-21swapper/209:54:442
10745991614,1cyclictest0-21swapper/209:40:222
10745991614,1cyclictest0-21swapper/208:45:122
10745991614,1cyclictest0-21swapper/207:40:112
10745991613,2cyclictest3414-21master08:05:032
10745991613,2cyclictest22406-21cpuspeed_turbos09:25:132
1074599160,2cyclictest22354-21expr07:30:142
1074599160,1cyclictest8521-21cpuspeed_turbos09:00:112
1074599160,1cyclictest30632-21pzem_current10:35:212
1074599160,1cyclictest0-21swapper/210:00:212
1074599160,1cyclictest0-21swapper/209:35:162
1074599160,15cyclictest326802chrt07:45:372
1074599160,15cyclictest326802chrt07:45:372
1074599160,15cyclictest18516-21cat12:10:122
1074599160,15cyclictest0-21swapper/212:35:152
1074599160,15cyclictest0-21swapper/212:05:202
1074599160,15cyclictest0-21swapper/210:30:152
1074599160,15cyclictest0-21swapper/209:45:132
1074599160,15cyclictest0-21swapper/208:29:222
10733991614,1cyclictest22651-21sed10:20:200
10733991614,1cyclictest16153-21if_lxdbr008:15:160
10733991614,1cyclictest1273-21cpuspeed_turbos09:45:130
10733991614,1cyclictest0-21swapper/011:25:120
10733991614,1cyclictest0-21swapper/011:00:190
10733991614,1cyclictest0-21swapper/010:25:130
10733991614,1cyclictest0-21swapper/010:10:150
10733991614,1cyclictest0-21swapper/009:30:120
10733991614,1cyclictest0-21swapper/009:30:120
10733991614,1cyclictest0-21swapper/007:55:150
10733991614,1cyclictest0-21swapper/007:30:190
10733991613,2cyclictest28173-21sensors08:35:210
10733991613,2cyclictest27600-21grep11:30:130
1073399161,15cyclictest9-21ksoftirqd/008:55:360
1073399160,2cyclictest9839-21apt-get10:00:100
1073399160,1cyclictest3976-21H222:10:210
1073399160,1cyclictest0-21swapper/012:30:130
1073399160,15cyclictest28655-21pickup10:34:380
1073399160,15cyclictest22092-21dpkg11:20:140
1073399160,15cyclictest16743-21snapd11:17:490
1073399160,15cyclictest0-21swapper/012:30:000
1073399160,15cyclictest0-21swapper/011:50:020
1073399160,15cyclictest0-21swapper/011:45:120
1073399160,15cyclictest0-21swapper/010:50:150
1073399160,15cyclictest0-21swapper/010:09:000
1073399160,15cyclictest0-21swapper/009:15:120
1073399160,15cyclictest0-21swapper/008:50:140
1073399160,15cyclictest0-21swapper/008:45:120
1073399160,15cyclictest0-21swapper/008:25:140
1073399160,15cyclictest0-21swapper/007:45:130
1073399160,15cyclictest0-21swapper/007:45:130
10745991514,1cyclictest0-21swapper/209:15:152
10745991513,1cyclictest0-21swapper/212:30:162
1074599150,1cyclictest0-21swapper/210:45:012
1074599150,1cyclictest0-21swapper/209:10:142
10733991513,1cyclictest0-21swapper/012:35:140
1073399150,15cyclictest0-21swapper/012:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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