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2026-04-17 - 20:21
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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 Fri Apr 17, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7293993322,10cyclictest26259-21cut08:40:011
729299254,6cyclictest0-21swapper/008:29:190
729599230,5cyclictest0-21swapper/208:15:262
729599230,18cyclictest0-21swapper/210:14:432
729399230,20cyclictest0-21swapper/111:35:071
729299232,15cyclictest0-21swapper/010:44:530
7292992314,8cyclictest1829-21systemd-journal07:17:010
729299230,22cyclictest579-21missed_timers10:45:170
729299230,15cyclictest672-21chrt11:40:310
729599225,16cyclictest15773-21nfsd411:10:172
729599220,4cyclictest0-21swapper/207:55:242
7292992215,6cyclictest22644-21chrt10:29:440
729299220,2cyclictest24567-21grep12:25:150
729299220,21cyclictest9130-21df11:00:130
729299220,1cyclictest12000-21apt-get08:15:120
729299220,16cyclictest15111-21awk09:15:190
729599213,17cyclictest0-21swapper/212:20:002
729599212,18cyclictest0-21swapper/211:20:142
729599212,18cyclictest0-21swapper/211:20:142
7295992118,2cyclictest3996-21taskset11:48:002
7295992118,2cyclictest30992-21date09:45:152
7295992118,2cyclictest18658-21chrt09:23:462
7295992118,2cyclictest16121-21ntp_kernel_pll_08:20:182
7295992118,2cyclictest14246-21df09:15:142
729599210,3cyclictest0-21swapper/207:54:362
729599210,3cyclictest0-21swapper/207:54:362
7293992120,0cyclictest0-21swapper/110:57:581
7292992115,5cyclictest21887-21grep12:20:130
7292992115,5cyclictest19045-21timerandwakeup11:15:200
7292992114,6cyclictest21743-21munin-plugin-st09:30:000
7292992114,6cyclictest13192-21memory10:10:160
7292992114,6cyclictest0-21swapper/011:55:020
7292992114,6cyclictest0-21swapper/009:55:160
7292992113,7cyclictest4970-21apt-get10:55:010
729299210,2cyclictest17130-21/usr/sbin/munin07:25:180
729299210,20cyclictest843-21systemd-network07:52:400
729299210,20cyclictest843-21systemd-network07:52:400
729299210,20cyclictest23480-21grep08:35:140
729299210,20cyclictest20124-21date10:25:000
729299210,20cyclictest0-21swapper/012:10:180
729299210,20cyclictest0-21swapper/008:08:590
729299210,1cyclictest102632chrt09:08:540
729299210,1cyclictest0-21swapper/010:15:290
729299210,16cyclictest8770-21chrt10:04:120
729299210,16cyclictest2973-21postgres09:53:520
729299210,15cyclictest15013-21postgres12:08:560
729299210,15cyclictest0-21swapper/007:10:210
729299210,0cyclictest0-21swapper/009:21:330
729599203,16cyclictest22792-21apt-get11:25:122
729599203,16cyclictest0-21swapper/209:30:142
729599202,17cyclictest0-21swapper/212:00:142
729599202,17cyclictest0-21swapper/207:46:392
729599202,17cyclictest0-21swapper/207:12:592
7295992017,3cyclictest0-21swapper/211:30:132
7295992017,2cyclictest0-21swapper/212:35:162
7295992017,2cyclictest0-21swapper/208:55:192
7295992016,3cyclictest0-21swapper/211:00:162
7295992016,3cyclictest0-21swapper/207:20:152
729599201,18cyclictest0-21swapper/210:45:012
729599201,18cyclictest0-21swapper/209:59:252
729599200,19cyclictest843-21systemd-network11:15:542
729399203,16cyclictest30054-21cut09:45:011
729399203,11cyclictest12660-21perf07:20:001
7292992014,5cyclictest28394-21timerandwakeup12:30:220
7292992014,5cyclictest22789-21apache_volume11:25:120
7292992014,5cyclictest0-21swapper/011:35:140
7292992014,5cyclictest0-21swapper/010:50:180
7292992014,5cyclictest0-21swapper/010:40:010
7292992014,5cyclictest0-21swapper/010:30:170
7292992014,5cyclictest0-21swapper/008:50:110
7292992014,5cyclictest0-21swapper/008:30:160
7292992013,6cyclictest0-21swapper/011:10:200
7292992013,6cyclictest0-21swapper/009:10:150
7292992013,6cyclictest0-21swapper/008:14:130
7292992013,6cyclictest0-21swapper/007:40:210
7292992013,6cyclictest0-21swapper/007:22:220
729299200,1cyclictest27026-21grep08:40:140
729299200,1cyclictest0-21swapper/009:41:300
729299200,1cyclictest0-21swapper/008:20:150
729299200,19cyclictest16745-21snapd07:45:040
729299200,19cyclictest0-21swapper/012:15:170
729299200,19cyclictest0-21swapper/011:55:140
729299200,19cyclictest0-21swapper/011:30:210
729299200,19cyclictest0-21swapper/009:45:130
729299200,19cyclictest0-21swapper/009:35:200
729299200,19cyclictest0-21swapper/009:00:160
729299200,19cyclictest0-21swapper/007:55:230
729299200,16cyclictest22617-21smartctl09:30:150
729299200,15cyclictest20405-21expr11:20:130
729299200,15cyclictest20405-21expr11:20:130
729299200,15cyclictest0-21swapper/007:35:130
729299200,14cyclictest0-21swapper/012:35:160
729599193,16cyclictest0-21swapper/210:30:172
729599192,16cyclictest0-21swapper/210:01:222
7295991917,1cyclictest0-21swapper/211:42:352
7295991916,3cyclictest0-21swapper/207:29:122
7295991916,2cyclictest0-21swapper/210:55:122
7295991916,2cyclictest0-21swapper/208:45:212
7295991916,2cyclictest0-21swapper/208:00:182
729599191,17cyclictest0-21swapper/212:30:122
729599191,17cyclictest0-21swapper/211:50:162
729599191,17cyclictest0-21swapper/211:05:132
729599191,17cyclictest0-21swapper/208:50:112
729599191,17cyclictest0-21swapper/208:05:172
729599191,17cyclictest0-21swapper/207:17:032
729599190,19cyclictest0-21swapper/208:12:172
729599190,18cyclictest0-21swapper/212:25:162
729599190,17cyclictest0-21swapper/208:45:012
729399193,1cyclictest0-21swapper/112:12:161
7293991918,0cyclictest0-21swapper/108:09:441
7293991915,3cyclictest0-21swapper/109:12:511
7293991915,3cyclictest0-21swapper/107:50:181
7293991915,3cyclictest0-21swapper/107:50:181
7293991913,2cyclictest20166-21cpuspeed_turbos11:20:131
7293991913,2cyclictest20166-21cpuspeed_turbos11:20:131
729399190,18cyclictest0-21swapper/107:34:481
7292991914,4cyclictest0-21swapper/008:00:360
7292991913,5cyclictest11463-21ntp_offset12:00:160
7292991913,5cyclictest0-21swapper/011:05:160
7292991912,6cyclictest4148-21systemctl08:55:220
729299190,18cyclictest0-21swapper/008:45:130
729299190,14cyclictest0-21swapper/010:07:140
729599182,16cyclictest0-21swapper/210:45:042
729599182,16cyclictest0-21swapper/209:05:352
729599182,15cyclictest0-21swapper/208:30:212
7295991817,1cyclictest0-21swapper/209:29:012
7295991815,3cyclictest0-21swapper/209:00:132
7295991815,2cyclictest16289-21open_files10:15:192
7295991815,2cyclictest0-21swapper/211:55:162
7295991815,2cyclictest0-21swapper/209:40:102
7295991815,2cyclictest0-21swapper/209:35:152
7295991815,2cyclictest0-21swapper/207:40:212
7295991815,2cyclictest0-21swapper/207:35:172
7295991815,2cyclictest0-21swapper/207:30:112
729599181,17cyclictest0-21swapper/212:05:142
729599181,16cyclictest19629-21chrt10:20:482
729599181,16cyclictest0-21swapper/212:20:122
729599181,16cyclictest0-21swapper/212:10:072
729599181,16cyclictest0-21swapper/210:25:132
729599181,16cyclictest0-21swapper/210:05:132
729599180,17cyclictest0-21swapper/211:35:172
729599180,17cyclictest0-21swapper/210:50:182
729599180,17cyclictest0-21swapper/210:38:472
729599180,17cyclictest0-21swapper/208:35:142
729399182,15cyclictest237832sleep107:38:061
729399181,1cyclictest111rcu_preempt09:55:231
729399181,16cyclictest3100-21turbostat.cron09:55:001
729299180,14cyclictest0-21swapper/011:49:320
729599171,2cyclictest0-21swapper/209:10:132
729599171,16cyclictest0-21swapper/208:25:172
729399172,1cyclictest21-21ksoftirqd/108:22:251
729399172,1cyclictest0-21swapper/108:16:211
7293991715,1cyclictest26262-21/usr/sbin/munin10:35:131
7293991715,1cyclictest0-21swapper/110:19:071
7293991714,2cyclictest5740-21sed11:50:171
7293991714,2cyclictest12811-21apache_processe12:05:111
7293991714,2cyclictest1079-21cups-browsed09:35:201
7293991713,3cyclictest0-21swapper/112:20:491
729399171,15cyclictest0-21swapper/112:38:351
729399171,15cyclictest0-21swapper/110:55:001
729399170,2cyclictest3989-21H222:10:211
729399170,2cyclictest31878-21grep08:50:111
729399170,2cyclictest30240-21/usr/sbin/munin09:45:161
729399170,2cyclictest20798-21awk08:30:131
729399170,2cyclictest1035-21thermald12:00:181
729399170,1cyclictest0-21swapper/110:31:161
729399170,1cyclictest0-21swapper/107:28:481
729399170,16cyclictest8633-21nfsd411:55:161
729399170,16cyclictest8066-21apt-get09:05:121
729399170,16cyclictest3053-21systemd-logind07:24:521
729399170,16cyclictest20750-21cat10:25:121
729399170,16cyclictest2069-21systemd-udevd09:30:531
729399170,16cyclictest19129-21fschecks_time12:15:131
729399170,16cyclictest14396-21dpkg11:10:021
729399170,16cyclictest10908-21sort10:05:221
729399170,16cyclictest1085-21gdbus08:25:201
729399170,16cyclictest0-21swapper/110:14:421
7292991712,4cyclictest0-21swapper/007:30:160
7293991614,1cyclictest3461-21/usr/sbin/munin08:00:131
7293991614,1cyclictest17620-21/usr/sbin/munin10:20:161
7293991614,1cyclictest0-21swapper/111:25:171
7293991614,1cyclictest0-21swapper/111:05:121
7293991614,1cyclictest0-21swapper/110:45:081
7293991614,1cyclictest0-21swapper/109:25:151
7293991614,1cyclictest0-21swapper/109:15:131
7293991614,1cyclictest0-21swapper/109:00:131
7293991614,1cyclictest0-21swapper/108:40:251
7293991614,1cyclictest0-21swapper/108:14:251
7293991614,1cyclictest0-21swapper/107:40:181
729399160,2cyclictest30481-21ntp_kernel_pll_08:45:181
729399160,2cyclictest25130-21awk12:25:181
729399160,1cyclictest0-21swapper/111:00:201
729399160,15cyclictest8221-21grep07:10:141
729399160,15cyclictest6813-21expr10:00:111
729399160,15cyclictest3054-21ntpq11:45:171
729399160,15cyclictest2265-21apt-get08:55:131
729399160,15cyclictest0-21swapper/112:30:141
729399160,15cyclictest0-21swapper/111:40:161
729399160,15cyclictest0-21swapper/111:30:171
729399160,15cyclictest0-21swapper/111:15:151
729399160,15cyclictest0-21swapper/107:55:201
729399160,15cyclictest0-21swapper/107:45:121
729399150,1cyclictest3985-21H222:10:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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