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2026-03-29 - 17:38
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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 rackeslot2.osadl.org (updated Sun Mar 29, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
914198993219,8cyclictest1141172-21apt09:56:120
11202852280,1sleep0191rcu_preempt09:41:250
12067072250,2sleep30-21swapper/310:31:213
11273352240,2sleep30-21swapper/309:46:213
914198992317,5cyclictest1227385-21systemd-run10:45:010
914200992219,1cyclictest0-21swapper/208:50:002
91420099221,11cyclictest0-21swapper/210:20:012
914199992219,2cyclictest1393177-21munin-plugin-st12:20:011
914199992219,2cyclictest1323270-21sendmail11:40:001
914199992219,2cyclictest1323270-21sendmail11:40:001
914198992216,2cyclictest0-21swapper/011:51:160
914199992114,3cyclictest1264666-21grep11:06:201
914198992118,2cyclictest1410645-21apt-key12:30:000
914198992115,5cyclictest29026-21sendmail-mta09:46:240
914198992112,5cyclictest1084582-21kthreadcore09:21:210
91420099202,10cyclictest0-21swapper/212:30:012
914200992018,1cyclictest0-21swapper/210:40:012
914200992018,1cyclictest0-21swapper/210:10:012
914200992018,1cyclictest0-21swapper/207:15:012
914200992017,1cyclictest0-21swapper/211:35:012
914200992017,1cyclictest0-21swapper/211:06:212
914199992017,2cyclictest940943-21apt-key07:30:011
914199992016,3cyclictest1314547-21apt-config11:35:011
914198992012,4cyclictest1166130-21sh10:10:010
914198992011,5cyclictest2902298rtkit-daemon10:56:440
2649091200,2phc2sys0-21swapper/312:33:353
91420099194,6cyclictest0-21swapper/207:10:012
91420099194,6cyclictest0-21swapper/207:10:012
914200991917,1cyclictest0-21swapper/212:10:022
914200991916,1cyclictest0-21swapper/211:11:142
914200991916,1cyclictest0-21swapper/210:35:002
914200991916,1cyclictest0-21swapper/209:35:002
914200991916,1cyclictest0-21swapper/209:11:252
914199991916,2cyclictest995661-21systemd-run08:15:011
914199991916,2cyclictest1366903-21apt-key12:05:011
914199991915,3cyclictest1328509-21ssh11:41:221
914199991913,5cyclictest1290-21dbus-daemon10:25:001
91419899199,5cyclictest0-21swapper/011:18:360
914198991916,2cyclictest1288-1atopacctd11:30:000
914198991916,2cyclictest1228554-21tr10:46:150
914198991916,2cyclictest1-21systemd11:35:020
914198991913,5cyclictest1137462-21pmu-power09:51:240
914198991911,6cyclictest0-21swapper/010:15:010
914198991911,4cyclictest1421004-21df12:36:150
2902298190,4rtkit-daemon1061939-21diskmemload09:23:191
2649091193,3phc2sys0-21swapper/310:46:173
91420099181,5cyclictest0-21swapper/211:50:012
914200991815,1cyclictest0-21swapper/211:38:562
914200991815,1cyclictest0-21swapper/211:38:562
914200991815,1cyclictest0-21swapper/207:35:012
914200991815,1cyclictest0-21swapper/207:30:012
914199991815,2cyclictest257-21systemd-journal08:25:011
914199991811,3cyclictest1402561-21runrttasks12:25:451
91419899187,6cyclictest0-21swapper/011:21:230
914198991815,2cyclictest1296-21polkitd10:30:020
914198991812,5cyclictest1350309-21/usr/sbin/munin11:56:210
2649091181,2phc2sys0-21swapper/309:21:493
2649091180,2phc2sys0-21swapper/309:33:403
914200991714,1cyclictest0-21swapper/211:41:202
914200991714,1cyclictest0-21swapper/210:55:002
914200991714,1cyclictest0-21swapper/210:40:332
914200991714,1cyclictest0-21swapper/210:21:202
914199991714,2cyclictest946986-21latency_hist07:35:001
914199991714,2cyclictest1379714-21kthreadcore12:11:201
914199991714,2cyclictest1253363-21sendmail11:00:001
914199991714,2cyclictest1128903-21ptp4l09:46:241
914199991714,2cyclictest1105354-21systemd-run09:35:001
914199991713,3cyclictest1161388-21kthreadcore10:06:211
914199991713,2cyclictest1070705-21kworker/u16:0-events_power_efficient09:20:021
91419899179,4cyclictest1093804-21grep09:26:220
91419899179,3cyclictest1397384-21kthreadcore12:21:200
91419899178,4cyclictest0-21swapper/011:10:000
914198991716,1cyclictest0-21swapper/010:01:140
914198991714,2cyclictest1286-21avahi-daemon10:40:010
914198991714,2cyclictest1286-21avahi-daemon08:50:000
914198991711,5cyclictest1-21systemd08:00:010
2649091171,2phc2sys0-21swapper/310:20:013
2649091170,2phc2sys0-21swapper/309:51:113
91420099164,1cyclictest0-21swapper/209:40:122
91420099161,6cyclictest0-21swapper/208:00:012
914200991614,1cyclictest0-21swapper/211:00:022
914200991613,2cyclictest0-21swapper/208:01:192
914200991613,1cyclictest0-21swapper/211:21:182
914200991613,1cyclictest0-21swapper/210:46:172
914200991613,1cyclictest0-21swapper/210:11:042
914200991612,2cyclictest0-21swapper/209:54:112
91419999168,4cyclictest1108270-21kthreadcore09:36:211
91419999167,4cyclictest0-21swapper/109:41:211
914199991613,2cyclictest988810-21switchtime08:06:271
914199991613,2cyclictest4114978-21snmpd09:51:191
914199991613,2cyclictest1342278-21fschecks_count11:51:161
914199991613,2cyclictest1285308-21latency11:16:201
914199991613,2cyclictest1227431-21latency_hist10:45:021
914199991613,2cyclictest1037944-21cut08:50:011
914199991612,2cyclictest1375911-21latency_hist12:10:021
91419899169,2cyclictest0-21swapper/012:01:200
914198991614,1cyclictest29021-21rtkit-daemon08:14:570
914198991613,2cyclictest914196-21cyclictest09:01:140
914198991613,2cyclictest1375686-21latency_hist12:10:000
914198991613,2cyclictest1061939-21diskmemload09:18:420
914198991613,2cyclictest0-21swapper/009:35:010
2649091160,7phc2sys0-21swapper/310:45:003
2649091160,4phc2sys0-21swapper/311:26:143
2649091160,2phc2sys0-21swapper/309:55:283
914200991513,1cyclictest0-21swapper/212:31:142
914200991513,1cyclictest0-21swapper/211:51:242
914200991513,1cyclictest0-21swapper/211:25:392
914200991512,1cyclictest0-21swapper/212:03:342
914200991512,1cyclictest0-21swapper/211:59:122
914200991512,1cyclictest0-21swapper/210:56:182
914200991512,1cyclictest0-21swapper/210:28:372
914200991512,1cyclictest0-21swapper/209:45:572
914200991512,1cyclictest0-21swapper/209:15:562
914200991512,1cyclictest0-21swapper/209:03:482
914200991512,1cyclictest0-21swapper/208:36:192
914200991512,1cyclictest0-21swapper/208:10:012
914200991512,1cyclictest0-21swapper/207:15:022
914200991511,2cyclictest0-21swapper/209:35:222
914200991511,2cyclictest0-21swapper/207:46:202
91420099150,13cyclictest0-21swapper/209:22:002
91419999159,2cyclictest1394118-21/usr/sbin/munin12:21:191
91419999158,3cyclictest1145976-21grep09:56:211
91419999158,3cyclictest1020108-21tail08:36:151
91419999157,3cyclictest0-21swapper/110:55:001
91419999153,5cyclictest1176248-21aten_repower_po10:16:131
914199991512,2cyclictest1066250-21kthreadcore09:11:211
914199991511,3cyclictest1202761-21fschecks_count10:31:161
914199991511,3cyclictest1070705-21kworker/u16:0+nfsiod11:12:181
914199991511,2cyclictest1358208-21sh12:00:011
91419999150,4cyclictest0-21swapper/111:25:081
91419999150,3cyclictest0-21swapper/107:11:171
91419999150,14cyclictest1288-1atopacctd12:35:401
91419899159,5cyclictest914196-21cyclictest11:46:170
91419899159,5cyclictest1186738-21kthreadcore10:21:190
91419899159,5cyclictest1106016-21runrttasks09:35:130
91419899158,3cyclictest0-21swapper/008:05:010
91419899156,1cyclictest601rcuop/312:34:230
914198991513,1cyclictest0-21swapper/007:30:010
914198991512,2cyclictest970619-21mailstats07:51:230
914198991512,2cyclictest920584-21kthreadcore07:15:010
914198991512,2cyclictest1290-21dbus-daemon11:40:000
914198991512,2cyclictest1290-21dbus-daemon11:40:000
914198991512,2cyclictest1031030-21mailstats08:41:240
914198991512,2cyclictest1019615-21cron08:35:000
914198991511,3cyclictest1305860-21kworker/u16:3+nfsiod12:12:120
91419899151,13cyclictest0-21swapper/009:11:140
2649091150,3phc2sys0-21swapper/311:03:093
2649091150,2phc2sys0-21swapper/312:20:263
2649091150,2phc2sys0-21swapper/311:59:183
2649091150,2phc2sys0-21swapper/311:48:223
2649091150,2phc2sys0-21swapper/311:44:553
2649091150,2phc2sys0-21swapper/311:05:233
2649091150,2phc2sys0-21swapper/308:11:223
2649091150,1phc2sys0-21swapper/310:39:043
2649091150,1phc2sys0-21swapper/310:28:123
2649091150,1phc2sys0-21swapper/310:01:263
91420099141,8cyclictest13767492sleep212:11:132
91420099141,8cyclictest0-21swapper/209:00:012
914200991412,1cyclictest0-21swapper/212:15:442
914200991412,1cyclictest0-21swapper/211:16:232
914200991412,1cyclictest0-21swapper/209:56:192
914200991412,1cyclictest0-21swapper/207:45:012
914200991412,1cyclictest0-21swapper/207:21:042
914200991411,1cyclictest0-21swapper/212:37:502
914200991411,1cyclictest0-21swapper/212:22:522
914200991411,1cyclictest0-21swapper/210:01:192
914200991411,1cyclictest0-21swapper/209:10:012
914200991411,1cyclictest0-21swapper/208:55:012
914200991411,1cyclictest0-21swapper/208:31:072
914200991411,1cyclictest0-21swapper/208:24:552
914200991411,1cyclictest0-21swapper/208:16:152
914200991411,1cyclictest0-21swapper/207:51:252
914200991411,1cyclictest0-21swapper/207:40:002
91419999145,4cyclictest1290-21dbus-daemon09:00:011
91419999144,4cyclictest1167500-21aten_repower_en10:11:141
914199991412,1cyclictest29021-21rtkit-daemon09:29:461
914199991411,2cyclictest999190-21kthreadcore08:16:201
914199991411,2cyclictest983452-21latency_hist08:05:001
914199991411,2cyclictest1415781-21kthreadcore12:31:211
914199991411,2cyclictest1296985-21latency_hist11:25:011
914199991411,2cyclictest1229598-21kthreadcore10:46:201
914199991411,2cyclictest1157733-21sh10:05:021
914199991411,2cyclictest1061416-21timerandwakeup09:06:261
914199991411,2cyclictest1019870-21latency_hist08:35:021
914199991411,2cyclictest0-21swapper/108:45:001
914199991411,2cyclictest0-21swapper/108:30:011
914199991410,3cyclictest951355-21kthreadcore07:36:231
914199991410,3cyclictest1166683-21kworker/u16:2+nfsiod11:49:451
914199991410,3cyclictest1070705-21kworker/u16:0+nfsiod10:26:051
91419999140,4cyclictest1262121-21munin-run11:05:001
91419899148,1cyclictest0-21swapper/010:16:140
91419899145,5cyclictest0-21swapper/007:15:250
91419899145,1cyclictest934673-21kworker/0:2+events08:16:180
914198991412,1cyclictest934642-21perf07:25:000
914198991412,1cyclictest1046481-21kthreadcore08:56:200
914198991412,1cyclictest0-21swapper/007:35:010
914198991411,2cyclictest1070705-21kworker/u16:0-events_unbound11:10:390
914198991411,2cyclictest1070705-21kworker/u16:0-events_power_efficient10:35:010
914198991411,2cyclictest1009190-21irqrtprio08:26:190
914198991411,2cyclictest1002254-21tr08:21:150
914198991411,2cyclictest0-21swapper/011:05:000
914198991410,3cyclictest1324668-21tr11:41:160
2649091142,2phc2sys0-21swapper/309:20:013
914200991311,1cyclictest0-21swapper/208:26:202
914200991310,1cyclictest0-21swapper/209:25:462
914200991310,1cyclictest0-21swapper/208:40:172
914200991310,1cyclictest0-21swapper/208:10:572
91419999139,2cyclictest0-21swapper/108:55:001
91419999137,5cyclictest929565-21sort07:21:161
914199991310,2cyclictest965675-21aten_repower_cu07:51:121
914199991310,2cyclictest962341-21kthreadcore07:46:221
914199991310,2cyclictest953478-21acpi07:41:111
914199991310,2cyclictest927776-21proc_pri07:16:231
914199991310,2cyclictest1213001-21kthreadcore10:36:201
91419899139,2cyclictest0-21swapper/008:40:010
91419899137,5cyclictest0-21swapper/009:10:020
914198991310,2cyclictest987372-21kthreadcore08:06:220
914198991310,2cyclictest961138-21kthreadcore07:46:210
914198991310,2cyclictest954613-21irqrtprio07:41:170
914198991310,2cyclictest948587-21irqrtprio07:36:210
914198991310,2cyclictest1386164-21fschecks_time12:16:160
914198991310,2cyclictest1242000-21sendmail_mailqu10:51:240
2649091130,2phc2sys0-21swapper/312:05:503
2649091130,2phc2sys0-21swapper/311:31:173
91419999129,2cyclictest1051599-21kthreadcore09:01:191
91419999126,2cyclictest2902298rtkit-daemon07:55:411
91419899129,2cyclictest914265-21unin-run07:10:010
91419899129,2cyclictest914265-21unin-run07:10:010
91419899129,2cyclictest1038856-21fschecks_time08:51:170
2649091123,2phc2sys0-21swapper/312:35:553
2649091121,2phc2sys0-21swapper/307:35:013
2649091120,6phc2sys0-21swapper/309:11:143
2649091120,6phc2sys0-21swapper/308:26:143
2649091120,3phc2sys0-21swapper/307:10:293
2649091120,2phc2sys0-21swapper/310:53:133
2649091120,2phc2sys0-21swapper/307:39:553
2649091120,1phc2sys0-21swapper/311:19:173
91419999118,2cyclictest1290-21dbus-daemon07:10:001
91419999118,2cyclictest1290-21dbus-daemon07:10:001
2649091111,4phc2sys0-21swapper/307:26:113
2649091111,2phc2sys0-21swapper/309:01:183
2649091110,4phc2sys0-21swapper/307:51:113
2649091110,2phc2sys0-21swapper/312:27:403
2649091110,2phc2sys0-21swapper/312:01:253
2649091110,1phc2sys0-21swapper/312:13:313
2649091110,1phc2sys0-21swapper/308:56:053
2649091110,1phc2sys0-21swapper/307:42:593
2649091110,1phc2sys0-21swapper/307:15:423
2649091103,3phc2sys0-21swapper/311:36:353
2649091103,3phc2sys0-21swapper/311:36:353
2649091103,3phc2sys0-21swapper/311:11:183
2649091101,2phc2sys0-21swapper/311:20:493
2649091101,2phc2sys0-21swapper/310:55:513
2649091101,2phc2sys0-21swapper/310:20:173
2649091101,2phc2sys0-21swapper/307:58:413
2649091101,2phc2sys0-21swapper/307:06:203
2649091101,2phc2sys0-21swapper/307:06:203
2649091100,2phc2sys0-21swapper/312:15:353
2649091100,2phc2sys0-21swapper/310:10:473
2649091100,2phc2sys0-21swapper/309:39:093
2649091100,2phc2sys0-21swapper/308:46:193
2649091100,2phc2sys0-21swapper/308:36:173
2649091100,1phc2sys0-21swapper/308:24:593
2649091100,1phc2sys0-21swapper/307:49:043
264909191,3phc2sys0-21swapper/310:06:133
264909191,2phc2sys0-21swapper/308:41:183
264909191,2phc2sys0-21swapper/308:16:183
264909190,2phc2sys0-21swapper/311:50:193
264909190,2phc2sys0-21swapper/309:41:133
264909190,2phc2sys0-21swapper/309:26:463
264909190,2phc2sys0-21swapper/308:51:163
264909190,2phc2sys0-21swapper/308:31:163
264909190,2phc2sys0-21swapper/308:06:163
264909190,2phc2sys0-21swapper/308:01:183
264909190,2phc2sys0-21swapper/307:21:153
264909180,2phc2sys0-21swapper/309:06:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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