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2026-03-27 - 23:43
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Fri Mar 27, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
152938021100,1sleep01529377-21ps10:51:260
14449742990,3sleep30-21swapper/310:04:003
16623772840,2sleep30-21swapper/312:10:013
15995822530,1sleep20-21swapper/211:31:442
13677282410,1sleep10-21swapper/109:19:381
16325682310,1sleep11632569-21grep11:51:231
16506492270,1sleep20-21swapper/212:01:262
16506492270,1sleep20-21swapper/212:01:262
1203154992521,3cyclictest1290-21dbus-daemon11:40:011
1203151992512,8cyclictest0-21swapper/009:45:010
1203151992410,9cyclictest0-21swapper/010:20:020
1203154992320,2cyclictest1696750-21grep12:30:011
120315199231,8cyclictest1454311-21munin-run10:10:010
120315199231,6cyclictest1497438-21latency_hist10:35:010
1203151992312,7cyclictest1382881-21timerandwakeup09:26:280
1203151992311,8cyclictest1511389-21kthreadcore10:41:220
1203151992311,7cyclictest0-21swapper/009:15:000
120315199231,17cyclictest0-21swapper/008:27:340
120315199230,18cyclictest1706207-21/usr/sbin/munin12:36:270
1203157992210,6cyclictest0-21swapper/211:51:152
120315499228,5cyclictest0-21swapper/110:26:231
120315199229,8cyclictest0-21swapper/009:20:000
120315199228,9cyclictest0-21swapper/012:15:020
1203151992217,4cyclictest1290-21dbus-daemon07:15:010
1203151992216,5cyclictest1-21systemd10:30:000
1203151992212,7cyclictest1560454-21kthreadcore11:11:210
1203154992118,2cyclictest1290-21dbus-daemon07:40:001
1203154992112,3cyclictest1456682-21kthreadcore10:11:221
1203154992111,3cyclictest1590374-21runrttasks11:26:261
120315199218,9cyclictest0-21swapper/007:26:230
1203151992116,4cyclictest1290535-21/usr/sbin/munin08:20:000
1203151992112,8cyclictest1415751-21kthreadcore09:46:240
1203151992110,7cyclictest1439410-21kthreadcore10:01:230
1203151992110,10cyclictest0-21swapper/009:56:250
2902298200,4rtkit-daemon0-21swapper/009:20:530
1203157992017,1cyclictest0-21swapper/207:40:002
1203154992017,2cyclictest257-21systemd-journal09:35:011
120315199209,4cyclictest1633916-21timerwakeupswit11:51:280
120315199209,4cyclictest1576691-21aten2.4-expect11:21:160
120315199207,4cyclictest0-21swapper/010:40:010
1203151992014,5cyclictest1689430-21cpuspeed_turbos12:26:180
1203151992014,5cyclictest1569172-21sed11:16:210
1203151992014,5cyclictest1558201-21latency_hist11:10:010
1203151992014,5cyclictest1290-21dbus-daemon09:35:010
1203151992014,5cyclictest0-21swapper/010:50:000
120315199201,2cyclictest1642277-21ssh11:56:280
120315199201,2cyclictest0-21swapper/011:35:520
1203151992011,8cyclictest1533846-21if_eno110:56:200
1203154991916,2cyclictest1682578-21kthreadcore12:21:221
1203154991916,2cyclictest1428522-21latency_hist09:55:011
1203154991916,2cyclictest1290-21dbus-daemon09:00:011
120315199199,9cyclictest1472413-21/usr/sbin/munin10:21:230
120315199199,9cyclictest1421242-21fschecks_time09:51:190
120315199198,2cyclictest1654464-21aten2.4-expect12:06:160
120315199196,8cyclictest1596504-21tr11:31:210
120315199195,9cyclictest1311578-21tr08:36:220
120315199195,5cyclictest0-21swapper/011:42:330
120315199194,6cyclictest0-21swapper/007:15:330
1203151991914,4cyclictest1284212-21sh08:15:010
120315199191,2cyclictest1705249-21cron12:35:000
1203151991912,2cyclictest1296-21polkitd11:26:270
2649091181,2phc2sys0-21swapper/307:11:163
15709092180,2sleep30-21swapper/311:16:223
1203157991815,1cyclictest0-21swapper/210:30:002
1203157991815,1cyclictest0-21swapper/208:45:002
120315499188,4cyclictest0-21swapper/111:06:151
1203154991815,2cyclictest1613879-21kthreadcore11:41:231
1203154991815,2cyclictest1352080-21/usr/sbin/munin09:11:231
1203154991815,2cyclictest1326-21systemd-logind12:40:021
1203154991815,2cyclictest0-21swapper/112:00:011
1203154991811,3cyclictest1476557-21kthreadcore10:21:241
120315199189,8cyclictest1647113-21kthreadcore12:01:220
120315199189,8cyclictest1647113-21kthreadcore12:01:220
120315199188,9cyclictest1278308-21/usr/sbin/munin08:10:010
120315199188,2cyclictest0-21swapper/009:36:220
120315199187,4cyclictest1230076-21aten2.4-expect07:31:170
120315199187,1cyclictest601rcuop/308:46:210
120315199187,1cyclictest0-21swapper/009:06:160
120315199187,1cyclictest0-21swapper/009:06:160
120315199186,5cyclictest0-21swapper/008:50:150
120315199185,5cyclictest0-21swapper/011:46:220
120315199184,6cyclictest0-21swapper/008:30:340
1203151991813,4cyclictest0-21swapper/007:40:000
1203151991812,5cyclictest257-21systemd-journal07:25:000
1203151991812,5cyclictest1679498-21kworker/u16:1+nfsiod12:24:540
1203151991811,6cyclictest1253576-21unixbench-2d07:46:280
1203151991811,2cyclictest1334530-21kthreadcore08:56:230
1203151991811,2cyclictest1247932-21perf07:45:000
1203151991811,2cyclictest0-21swapper/011:05:000
1203151991810,3cyclictest1676533-21kthreadcore12:16:240
1203151991810,3cyclictest1456894-21kthreadcore10:11:230
1203151991810,3cyclictest1320349-21unixbench-2d08:41:280
2649091171,2phc2sys0-21swapper/312:26:293
2649091171,2phc2sys0-21swapper/309:31:253
2649091170,2phc2sys0-21swapper/312:01:013
2649091170,2phc2sys0-21swapper/312:01:013
2649091170,2phc2sys0-21swapper/311:47:573
2649091170,2phc2sys0-21swapper/309:35:353
2649091170,2phc2sys0-21swapper/307:46:183
2649091170,1phc2sys0-21swapper/309:54:553
1203157991715,1cyclictest0-21swapper/209:55:012
1203157991715,1cyclictest0-21swapper/208:00:012
120315499174,7cyclictest1284506-1cat08:15:021
1203154991714,2cyclictest1679729-21systemd-run12:20:021
1203154991714,2cyclictest1549314-21perf11:05:011
1203154991714,2cyclictest1516424-21fschecks_count10:46:181
1203154991714,2cyclictest1288-1atopacctd12:32:001
1203154991714,2cyclictest1234874-21mailstats07:31:271
1203154991714,2cyclictest1223481-21turbostat07:25:011
1203154991714,2cyclictest1209175-21munin-setwarn07:15:011
1203154991710,3cyclictest1582908-21runrttasks11:22:381
120315199179,3cyclictest1269288-21kthreadcore08:01:210
120315199175,2cyclictest1290936-21apt-get08:21:140
120315199174,5cyclictest0-21swapper/007:56:010
1203151991712,4cyclictest1339430-21aten2.4-expect09:01:170
2902298160,2rtkit-daemon0-21swapper/108:04:461
2902298160,2rtkit-daemon0-21swapper/107:18:131
2649091160,2phc2sys0-21swapper/307:16:263
2649091160,1phc2sys0-21swapper/310:23:093
120315799166,6cyclictest0-21swapper/210:10:012
120315799161,6cyclictest0-21swapper/211:30:012
1203157991614,1cyclictest0-21swapper/211:50:022
1203157991614,1cyclictest0-21swapper/210:31:242
1203157991614,1cyclictest0-21swapper/210:00:002
1203157991614,1cyclictest0-21swapper/209:45:022
1203157991612,2cyclictest0-21swapper/207:26:172
120315799161,12cyclictest13442182sleep209:01:282
120315499168,3cyclictest0-21swapper/110:51:231
1203154991613,2cyclictest4114978-21snmpd10:00:241
1203154991613,2cyclictest1653294-21cron12:05:001
1203154991613,2cyclictest1653294-21cron12:05:001
1203154991613,2cyclictest1406278-21kthreadcore09:41:231
1203154991613,2cyclictest1326-21systemd-logind08:55:011
1203154991613,2cyclictest1291256-21cpuspeed_turbos08:21:161
1203154991613,2cyclictest1288-1atopacctd10:06:201
1203154991613,2cyclictest1260560-21aten2.4-expect07:56:161
1203154991613,2cyclictest1248039-21latency_hist07:45:011
1203154991612,3cyclictest1468858-21mailstats10:16:281
120315199167,4cyclictest1256610-21cut07:51:230
120315199161,6cyclictest1202984-21latency_hist07:10:020
2649091156,2phc2sys0-21swapper/310:51:233
2649091151,2phc2sys0-21swapper/310:25:503
2649091151,2phc2sys0-21swapper/310:12:593
2649091150,2phc2sys0-21swapper/312:12:533
16372322150,2sleep20-21swapper/211:56:172
120315799159,4cyclictest0-21swapper/209:40:012
120315799157,4cyclictest0-21swapper/211:20:012
120315799151,9cyclictest0-21swapper/209:50:012
1203157991513,1cyclictest0-21swapper/210:05:012
1203157991513,1cyclictest0-21swapper/208:40:022
1203157991512,2cyclictest0-21swapper/207:15:012
1203157991512,1cyclictest0-21swapper/211:40:002
1203157991512,1cyclictest0-21swapper/210:40:012
1203157991512,1cyclictest0-21swapper/209:26:232
1203157991512,1cyclictest0-21swapper/208:56:232
1203157991512,1cyclictest0-21swapper/208:30:002
1203157991512,1cyclictest0-21swapper/207:41:152
1203157991511,2cyclictest0-21swapper/211:11:202
1203157991511,2cyclictest0-21swapper/211:01:152
120315499159,2cyclictest134050irq/121-eno111:31:221
120315499157,3cyclictest0-21swapper/109:50:001
1203154991513,1cyclictest29021-21rtkit-daemon09:06:281
1203154991513,1cyclictest29021-21rtkit-daemon09:06:281
1203154991512,2cyclictest1670854-21sh12:15:001
1203154991512,2cyclictest1428968-21runrttasks09:55:321
1203154991512,2cyclictest1379238-21kthreadcore09:26:221
1203154991512,2cyclictest1369080-21apt-get09:21:141
1203154991512,2cyclictest1303687-21gltestperf08:31:201
1203154991512,2cyclictest1286-21avahi-daemon10:35:001
1203154991512,2cyclictest1284610-21/usr/sbin/munin08:16:271
1203154991511,3cyclictest1609622-21kworker/u16:1+nfsiod12:06:341
1203154991511,3cyclictest1429014-21kworker/u16:2+nfsiod10:57:091
1203154991511,2cyclictest1278371-21sh08:10:021
1203154991510,4cyclictest1316137-21irqcore08:41:211
2649091144,2phc2sys0-21swapper/309:41:173
2649091141,3phc2sys0-21swapper/307:51:163
2649091140,2phc2sys0-21swapper/311:03:023
1203157991412,1cyclictest0-21swapper/212:31:242
1203157991412,1cyclictest0-21swapper/212:25:012
1203157991412,1cyclictest0-21swapper/212:20:012
1203157991412,1cyclictest0-21swapper/209:21:192
1203157991411,1cyclictest0-21swapper/212:15:002
1203157991411,1cyclictest0-21swapper/211:23:522
1203157991411,1cyclictest0-21swapper/210:46:212
1203157991411,1cyclictest0-21swapper/210:16:282
1203157991411,1cyclictest0-21swapper/209:13:292
1203157991410,2cyclictest0-21swapper/210:23:382
120315799140,6cyclictest0-21swapper/209:20:012
120315499147,3cyclictest1560244-21irqrtprio11:11:211
1203154991411,2cyclictest1507944-21idleruntime10:41:181
1203154991411,2cyclictest1395723-21if_enp1s0.809:36:201
1203154991411,2cyclictest1340339-21irqcore09:01:211
1203154991411,2cyclictest1313451-21kthreadcore08:36:231
1203154991411,2cyclictest1297621-21fschecks_time08:26:181
1203154991410,3cyclictest1623803-21kthreadcore11:46:241
1203154991410,3cyclictest1257126-21kthreadcore07:51:241
1203154991410,3cyclictest1252942-21latency07:46:231
2649091130,5phc2sys0-21swapper/310:55:183
2649091130,4phc2sys0-21swapper/311:51:083
2649091130,3phc2sys0-21swapper/308:46:153
2649091130,2phc2sys0-21swapper/311:21:053
2649091130,2phc2sys0-21swapper/308:36:253
2649091130,2phc2sys0-21swapper/307:56:253
2649091130,1phc2sys0-21swapper/311:25:143
2649091130,1phc2sys0-21swapper/309:24:423
2649091130,1phc2sys0-21swapper/309:15:373
12251542130,2sleep30-21swapper/307:26:233
120315799139,2cyclictest0-21swapper/209:33:162
120315799131,5cyclictest0-21swapper/207:10:012
1203157991311,1cyclictest0-21swapper/207:46:222
1203157991310,1cyclictest0-21swapper/212:36:282
1203157991310,1cyclictest0-21swapper/212:26:202
1203157991310,1cyclictest0-21swapper/212:07:442
1203157991310,1cyclictest0-21swapper/211:06:222
1203157991310,1cyclictest0-21swapper/210:54:412
1203157991310,1cyclictest0-21swapper/210:41:212
1203157991310,1cyclictest0-21swapper/208:35:002
1203157991310,1cyclictest0-21swapper/208:21:152
1203157991310,1cyclictest0-21swapper/208:20:012
1203157991310,1cyclictest0-21swapper/207:31:212
1203157991310,1cyclictest0-21swapper/207:16:212
120315499138,1cyclictest134050irq/121-eno111:16:161
120315499135,7cyclictest1227047-1grep07:26:241
1203154991310,2cyclictest1203143-21cyclictest10:36:221
1203154991310,2cyclictest0-21swapper/108:50:001
2649091125,2phc2sys0-21swapper/310:35:593
2649091122,2phc2sys0-21swapper/311:36:243
2649091120,2phc2sys0-21swapper/308:50:343
2649091120,2phc2sys0-21swapper/307:40:023
2649091120,2phc2sys0-21swapper/307:37:333
15080672121,2sleep30-21swapper/310:41:213
120315799129,2cyclictest0-21swapper/210:11:282
120315799129,1cyclictest0-21swapper/209:06:212
120315799129,1cyclictest0-21swapper/209:06:212
120315799129,1cyclictest0-21swapper/207:21:212
120315799128,2cyclictest0-21swapper/208:11:172
120315799125,4cyclictest0-21swapper/208:51:152
2649091111,2phc2sys0-21swapper/312:36:193
2649091111,2phc2sys0-21swapper/311:30:433
2649091110,3phc2sys0-21swapper/309:04:423
2649091110,2phc2sys0-21swapper/311:55:283
2649091110,2phc2sys0-21swapper/311:09:563
2649091110,2phc2sys0-21swapper/310:45:273
2649091110,2phc2sys0-21swapper/308:43:133
2649091110,2phc2sys0-21swapper/308:26:153
2649091110,1phc2sys0-21swapper/309:08:273
2649091110,1phc2sys0-21swapper/309:08:273
2649091110,1phc2sys0-21swapper/307:32:173
16879302110,5sleep30-21swapper/312:24:453
120315799119,1cyclictest0-21swapper/208:47:352
120315799119,1cyclictest0-21swapper/208:05:362
120315799119,1cyclictest0-21swapper/208:00:282
120315799118,1cyclictest0-21swapper/210:56:192
120315799118,1cyclictest0-21swapper/207:51:232
120315499114,5cyclictest1290-21dbus-daemon07:10:011
2649091101,2phc2sys0-21swapper/312:16:283
2649091101,2phc2sys0-21swapper/310:16:243
2649091101,2phc2sys0-21swapper/309:26:423
2649091101,2phc2sys0-21swapper/308:16:223
2649091100,3phc2sys0-21swapper/312:34:473
2649091100,3phc2sys0-21swapper/309:46:223
2649091100,2phc2sys0-21swapper/310:34:393
2649091100,2phc2sys0-21swapper/310:09:033
2649091100,2phc2sys0-21swapper/309:56:203
2649091100,2phc2sys0-21swapper/309:14:483
2649091100,2phc2sys0-21swapper/308:56:213
2649091100,2phc2sys0-21swapper/308:35:013
2649091100,2phc2sys0-21swapper/308:11:173
2649091100,2phc2sys0-21swapper/308:04:553
2649091100,2phc2sys0-21swapper/307:21:593
2649091100,2phc2sys0-21swapper/307:10:013
120315799108,1cyclictest0-21swapper/211:40:172
264909190,2phc2sys0-21swapper/311:40:173
264909190,2phc2sys0-21swapper/311:10:273
264909190,2phc2sys0-21swapper/308:21:193
264909190,2phc2sys0-21swapper/308:06:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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