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2026-07-19 - 17:18
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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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackeslot8.osadl.org (updated Sun Jul 19, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129730721400,1sleep00-21swapper/008:20:160
12467602840,1sleep30-21swapper/307:40:183
1204628992724,1cyclictest0-21swapper/312:20:013
1204628992724,1cyclictest0-21swapper/311:20:013
1204628992723,1cyclictest0-21swapper/312:20:113
16816872260,3sleep11681682-21dump-pmu-power12:35:001
1204628992623,1cyclictest0-21swapper/308:00:173
1204628992522,1cyclictest0-21swapper/310:00:203
1204628992522,1cyclictest0-21swapper/309:40:183
1204628992522,1cyclictest0-21swapper/309:00:183
1204628992522,1cyclictest0-21swapper/308:20:033
1204628992421,1cyclictest0-21swapper/311:20:173
1204628992421,1cyclictest0-21swapper/309:20:103
1204628992320,1cyclictest0-21swapper/308:20:013
1204628992319,1cyclictest0-21swapper/312:05:173
1204628992219,1cyclictest0-21swapper/310:20:003
1204628992218,1cyclictest0-21swapper/308:10:013
1204628992118,1cyclictest0-21swapper/311:00:003
1204628992118,1cyclictest0-21swapper/310:20:173
1204628992118,1cyclictest0-21swapper/309:50:123
1204628992118,1cyclictest0-21swapper/307:38:333
120462899202,14cyclictest1270639-21taskset07:56:453
1204628992018,0cyclictest0-21swapper/307:20:013
1204628992018,0cyclictest0-21swapper/307:20:003
1204628992017,1cyclictest0-21swapper/310:50:183
1204628992017,1cyclictest0-21swapper/310:00:023
120462899201,14cyclictest1368990-21taskset09:15:153
15793402191,14sleep21579344-21ssh11:28:502
1204628991916,1cyclictest0-21swapper/311:40:143
1204628991916,1cyclictest0-21swapper/309:05:153
1204628991916,1cyclictest0-21swapper/308:47:333
120462899191,14cyclictest1608963-21taskset11:45:223
120462899191,14cyclictest1453853-21taskset10:08:113
120462899191,14cyclictest1399622-21taskset09:34:483
120462899191,14cyclictest1208088-21taskset07:10:193
120462899191,13cyclictest1492098-21chrt10:30:293
120462899191,13cyclictest1328895-21taskset08:45:003
1204628991910,6cyclictest15171022sleep310:49:543
1204628991815,1cyclictest0-21swapper/311:35:143
1204628991815,1cyclictest0-21swapper/311:25:153
1204628991815,1cyclictest0-21swapper/311:05:173
1204628991815,1cyclictest0-21swapper/310:40:173
120462899181,14cyclictest1687820-21taskset12:35:263
120462899181,13cyclictest1671189-21taskset12:25:213
120462899181,13cyclictest1648801-21taskset12:10:443
120462899181,13cyclictest1585349-21taskset11:30:233
120462899181,13cyclictest1484466-21taskset10:25:483
120462899181,13cyclictest1455410-21taskset10:10:163
120462899181,13cyclictest1390622-21taskset09:26:223
120462899181,13cyclictest1367168-21taskset09:11:263
120462899181,13cyclictest1367168-21taskset09:11:263
120462899181,13cyclictest1316053-21taskset08:35:063
120462899181,13cyclictest1307076-21taskset08:25:203
120462899181,13cyclictest1232134-21chrt07:26:553
120462899181,13cyclictest1232134-21chrt07:26:553
120462899181,12cyclictest1501484-21taskset10:39:553
1204628991714,1cyclictest0-21swapper/311:10:173
1204628991714,1cyclictest0-21swapper/309:45:153
1204628991714,1cyclictest0-21swapper/308:50:123
1204628991714,1cyclictest0-21swapper/308:10:193
120462899171,13cyclictest1633469-21taskset12:01:343
120462899171,13cyclictest1611426-21taskset11:50:033
120462899171,13cyclictest1238448-21taskset07:30:393
120462899171,13cyclictest1219871-21taskset07:20:133
120462899171,12cyclictest1674170-21taskset12:30:053
120462899171,12cyclictest1539079-21taskset11:00:373
120462899171,12cyclictest1258361-21taskset07:50:083
16567142161,10sleep11656720-21ssh12:15:561
1204628991613,1cyclictest0-21swapper/311:55:123
1204628991613,1cyclictest0-21swapper/308:30:193
120462899161,12cyclictest1406051-21taskset09:36:003
120462899161,12cyclictest1347060-21taskset08:55:283
120462899161,12cyclictest1252027-21taskset07:45:113
16654682141,10sleep21665474-21ssh12:23:192
14390712141,9sleep11438840-21sendmail-msp10:00:091
12042572140,2sleep30-21swapper/307:06:553
11984542141,7sleep00-21swapper/007:05:120
16428322133,6sleep21642830-21apt-get12:10:122
15953652131,9sleep21595566-21latency_hist11:40:012
15633952131,1sleep00-21swapper/011:18:100
14451892131,3sleep01445195-21sh10:00:480
13835132131,9sleep21383519-21ssh09:23:132
13343892131,9sleep01334542-21cat08:45:260
16364792120,10sleep11638147-21kthreadcore12:05:181
16222372120,9sleep01623948-21cut11:55:190
15391652120,9sleep11539171-21ssh11:00:511
15089582121,8sleep21508964-21ssh10:43:572
14462742120,9sleep21446282-21ssh10:03:542
14067652122,2sleep1222-21plymouthd09:37:591
12765182125,5sleep244-21ksoftirqd/208:00:262
12595842120,5sleep01259802-21kthreadcore07:50:180
12573392120,8sleep21257434-21sort07:45:272
12390972121,4sleep21239100-21apt-get07:35:122
12148292120,9sleep10-21swapper/107:15:191
12148292120,9sleep10-21swapper/107:15:191
12100642120,8sleep21210107-21ntpq07:10:232
16558062112,4sleep21655897-21ntpq12:15:222
16271522111,7sleep01626880-21sendmail-msp12:00:120
16095742110,8sleep11609573-21ssh11:45:381
15956982111,3sleep21595431-21sendmail-msp11:40:052
15184102110,8sleep21519314-21kthreadcore10:50:182
14837712110,1sleep20-21swapper/210:25:232
14526622110,7sleep21447006-21/usr/sbin/munin10:05:272
14326972110,2sleep0222-21plymouthd09:55:180
13990732112,6sleep2222-21plymouthd09:33:152
12198352113,4sleep21219868-21apt-get07:20:132
16872832101,2sleep20-21swapper/212:35:222
16106872100,1sleep00-21swapper/011:48:410
15988622101,6sleep11599815-21ssh11:40:201
15631432100,7sleep21563149-21ssh11:17:242
15557852100,3sleep21555789-21ssh11:13:432
14947142101,6sleep10-21swapper/110:35:171
14929482101,6sleep0222-21plymouthd10:32:550
14862852104,3sleep21477599-21kworker/u16:0+nfsiod10:30:132
14377702100,1sleep20-21swapper/209:57:172
14307252101,7sleep11430731-21ssh09:54:191
14206762101,6sleep21420854-21strings09:45:222
13831922107,1sleep01360674-21diskmemload09:22:230
13545452101,4sleep1222-21plymouthd09:05:121
13289592102,4sleep21328992-21apt-get08:45:132
1681650290,6sleep01681667-21unix_chkpwd12:35:010
1655949291,4sleep01656002-21ntp_states12:15:230
1649507291,6sleep11649511-21ssh12:12:521
1640290292,4sleep21640334-21ntpq12:05:242
1627215290,7sleep21626880-21sendmail-msp12:00:142
1626642290,7sleep11626648-21ssh11:59:331
1462721290,5sleep11462874-21df_inode10:15:121
1452204291,4sleep01452295-21ntpq10:05:210
1367962291,5sleep11367970-21ssh09:13:381
1367962291,5sleep11367970-21ssh09:13:381
1366865290,2sleep2222-21plymouthd09:10:342
1366865290,2sleep2222-21plymouthd09:10:342
1347572290,2sleep2222-21plymouthd08:56:592
1315577290,2sleep1222-21plymouthd08:32:201
1295607291,5sleep11295646-21ntpq08:15:211
1290154290,6sleep1222-21plymouthd08:15:001
1232050290,1sleep10-21swapper/107:25:491
1232050290,1sleep10-21swapper/107:25:491
1231442292,4sleep21231481-21ntpq07:25:222
1231442292,4sleep21231481-21ntpq07:25:222
1198479290,6sleep11198543-21cpuspeed_turbos07:05:131
1689337280,2sleep0222-21plymouthd12:39:330
1673193280,2sleep21673199-21ssh12:28:042
1662994281,4sleep01663680-21memory12:20:200
1612512281,4sleep11612977-21ssh11:50:181
1611677280,5sleep21611723-21fschecks_count11:50:152
1611515281,3sleep00-21swapper/011:50:130
1593222280,5sleep11593242-21ntp_states11:35:241
1579233281,3sleep1222-21plymouthd11:28:331
1555148280,1sleep00-21swapper/011:11:560
1538300281,4sleep01538386-21ssh11:00:220
1530504281,4sleep21530542-21ntpq10:55:222
1507209281,4sleep01507257-21ntpq10:40:250
1501867280,5sleep11502015-21df10:40:151
1501002280,1sleep00-21swapper/010:38:410
1476773280,2sleep21476779-21ssh10:21:182
1464982280,5sleep21466614-21cut10:15:172
1462712280,4sleep01462720-21sshd-auth10:15:110
1460922280,1sleep00-21swapper/010:10:550
1430993280,5sleep21431027-21awk09:55:002
1426236282,3sleep01427950-21kthreadcore09:50:170
1392243281,3sleep00-21swapper/009:30:130
1390540280,5sleep2222-21plymouthd09:26:112
1389758281,4sleep01389799-21ntp_states09:25:230
1375282280,1sleep0222-21plymouthd09:17:270
1326649281,4sleep01327585-21memory08:40:210
1296558280,4sleep01296588-21munin-run08:20:020
1276165280,2sleep11276337-21strings08:00:211
1270837280,1sleep10-21swapper/107:59:211
1257229281,4sleep00-21swapper/007:45:250
1204810281,3sleep0222-21plymouthd07:10:130
1204456280,4sleep2222-21plymouthd07:09:322
1687244270,4sleep1222-21plymouthd12:35:211
1674191271,3sleep21674224-21apt-get12:30:132
1666890271,3sleep01667832-21cut12:25:180
1644318270,4sleep01645903-21ps12:10:180
1634265271,4sleep11634271-21ssh12:03:541
1619311270,3sleep21619317-21ssh11:55:132
1609713270,4sleep21609721-21ssh11:46:022
1586016270,4sleep01586022-21ssh11:30:410
1580156270,4sleep21580273-21diskstats11:30:152
1577593271,3sleep01577639-21ntpq11:25:240
1570659271,4sleep00-21swapper/011:21:150
1569788271,3sleep11569829-21ntpq11:20:231
1547666270,1sleep20-21swapper/211:07:492
1540354270,3sleep2222-21plymouthd11:04:142
1532551270,4sleep01532557-21ssh10:59:250
1531210270,4sleep11531216-21ssh10:55:421
1509663271,3sleep21509696-21apt-get10:45:122
1500955272,2sleep20-21swapper/210:38:302
1485738271,4sleep11485744-21ssh10:29:271
1454839271,3sleep21454874-21apt-get10:10:122
1454779270,1sleep1222-21plymouthd10:10:031
1448470270,4sleep11450047-21cut10:05:181
1436828271,3sleep11437004-21grep09:55:271
1422057270,1sleep00-21swapper/009:46:560
1414490270,2sleep10-21swapper/109:42:321
1409031271,4sleep21409771-21cut09:40:172
1407191270,1sleep20-21swapper/209:39:182
1407100271,3sleep0222-21plymouthd09:39:030
1399065271,3sleep10-21swapper/109:33:141
1370237270,3sleep21371795-21grep09:15:192
1360356270,3sleep2222-21plymouthd09:06:052
1353361270,4sleep21353406-21ntpq09:00:242
1346945271,3sleep11346978-21ntpq08:55:261
1344013271,4sleep01345804-21tr08:55:210
1341384270,4sleep1222-21plymouthd08:54:251
1335327270,1sleep20-21swapper/208:50:012
1334757270,4sleep1222-21plymouthd08:45:551
1328369270,3sleep2222-21plymouthd08:40:552
1327586270,4sleep10-21swapper/108:40:221
1318438271,3sleep2222-21plymouthd08:35:182
1317459270,4sleep11318437-21cut08:35:181
1315695270,4sleep2222-21plymouthd08:33:502
1303308271,2sleep00-21swapper/008:25:140
1302704270,1sleep10-21swapper/108:20:541
1296396270,3sleep2222-21plymouthd08:17:582
1283686270,1sleep00-21swapper/008:09:340
1283532270,4sleep1222-21plymouthd08:07:351
1282761271,4sleep21282804-21ntpq08:05:232
1252065270,4sleep1222-21plymouthd07:45:141
1239055270,1sleep00-21swapper/007:35:020
1232678271,3sleep11232681-21apt-get07:30:151
1225693270,4sleep0222-21plymouthd07:20:550
1671791260,1sleep11671900-21ssh12:25:271
1665594260,2sleep1222-21plymouthd12:23:461
1641514260,3sleep01641520-21ssh12:07:170
1593487260,3sleep01593737-21uptime11:35:270
1586809260,4sleep11516762-21kworker/u16:3+rpciod11:32:501
1556504260,4sleep11556510-21ssh11:15:061
1555047260,3sleep11555053-21ssh11:11:411
1548006261,2sleep1222-21plymouthd11:08:491
1542816260,4sleep01544513-21cut11:05:190
1523609260,1sleep00-21swapper/010:51:110
1523564260,3sleep1222-21plymouthd10:51:041
1509853260,3sleep11509965-21grep10:45:151
1487759260,4sleep11489309-21grep10:30:211
1484717260,2sleep0222-21plymouthd10:26:340
1470560260,3sleep11470657-21cpuspeed_turbos10:20:141
1470553261,3sleep0222-21plymouthd10:20:130
1414618260,1sleep00-21swapper/009:42:510
1384522260,3sleep11384533-21ssh09:25:131
1354073260,3sleep0222-21plymouthd09:02:260
1348280261,2sleep11348315-21cut09:00:151
1309150260,3sleep2222-21plymouthd08:26:482
1303333261,2sleep10-21swapper/108:25:161
1302695260,1sleep20-21swapper/208:20:472
1289864260,1sleep00-21swapper/008:11:190
1284017260,2sleep2222-21plymouthd08:10:082
1276755260,4sleep01276971-21users08:00:280
1270556260,3sleep2222-21plymouthd07:55:412
1264201260,2sleep1222-21plymouthd07:51:071
1248996261,3sleep11245306-21sendmail-msp07:40:221
1245992261,2sleep20-21swapper/207:40:182
1244339260,4sleep11244380-21ntpq07:35:231
1238658260,3sleep2222-21plymouthd07:33:162
1226313260,2sleep00-21swapper/007:25:130
1226313260,2sleep00-21swapper/007:25:120
1222100260,3sleep11223557-21cut07:20:201
1219259260,3sleep2222-21plymouthd07:16:242
1219259260,3sleep2222-21plymouthd07:16:242
1210933260,1sleep10-21swapper/107:14:111
1597510251,2sleep01598782-21ssh11:40:190
1567480250,2sleep20-21swapper/211:20:202
1511081250,3sleep01511447-21kthreadcore10:45:180
1420964250,2sleep10-21swapper/109:45:251
1376533251,2sleep1872-21in:imuxsock09:20:031
1373939252,1sleep10-21swapper/109:15:231
1361031250,2sleep01361027-21apt-get09:10:130
1361031250,2sleep01361027-21apt-get09:10:120
1356609250,2sleep01358356-21cut09:05:190
1335375252,1sleep00-21swapper/008:50:110
1321954250,2sleep0222-21plymouthd08:36:520
1309792250,3sleep00-21swapper/008:30:150
1264770250,2sleep0222-21plymouthd07:55:070
1264227250,2sleep2222-21plymouthd07:51:292
1251576250,2sleep0222-21plymouthd07:42:400
1232642250,2sleep0222-21plymouthd07:30:100
1213463250,2sleep00-21swapper/007:15:140
1213463250,2sleep00-21swapper/007:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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