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2026-07-06 - 00:38
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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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackeslot8.osadl.org (updated Sun Jul 05, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1248753994239,1cyclictest0-21swapper/312:30:013
1248753993026,1cyclictest0-21swapper/312:00:143
1248753992825,1cyclictest0-21swapper/311:10:003
1248753992724,1cyclictest0-21swapper/311:00:273
1248753992623,1cyclictest0-21swapper/311:25:003
1248753992623,1cyclictest0-21swapper/310:35:013
1248753992522,1cyclictest0-21swapper/311:40:163
1248753992522,1cyclictest0-21swapper/311:35:003
1248753992522,1cyclictest0-21swapper/311:35:003
1248753992522,1cyclictest0-21swapper/308:20:133
1248753992521,1cyclictest0-21swapper/310:20:153
1248753992421,1cyclictest0-21swapper/311:00:003
1248753992421,1cyclictest0-21swapper/310:06:393
1248753992421,1cyclictest0-21swapper/309:50:253
1248753992421,1cyclictest0-21swapper/309:05:163
1248753992421,1cyclictest0-21swapper/308:40:163
124875399227,12cyclictest1560549-21sleep10:50:003
1248753992219,1cyclictest0-21swapper/312:05:213
1248753992219,1cyclictest0-21swapper/311:50:143
1248753992219,1cyclictest0-21swapper/311:20:003
1248753992219,1cyclictest0-21swapper/310:10:253
1248753992219,1cyclictest0-21swapper/309:25:143
1248753992219,1cyclictest0-21swapper/309:20:263
1248753992219,1cyclictest0-21swapper/308:05:263
129740022115,3sleep20-21swapper/207:45:182
1248753992118,1cyclictest0-21swapper/312:20:043
1248753992118,1cyclictest0-21swapper/309:40:143
1248753992118,1cyclictest0-21swapper/309:35:153
1248753992118,1cyclictest0-21swapper/307:40:003
124875399209,8cyclictest1654507-21sleep11:50:003
1248753992017,1cyclictest0-21swapper/312:15:173
1248753992017,1cyclictest0-21swapper/311:35:233
1248753992017,1cyclictest0-21swapper/310:40:293
1248753992017,1cyclictest0-21swapper/309:00:183
1248753992017,1cyclictest0-21swapper/308:45:143
1248753992017,1cyclictest0-21swapper/307:20:013
124875399201,14cyclictest1730633-21taskset12:35:213
124875399201,14cyclictest1353269-21taskset08:29:563
124875399201,14cyclictest1340464-21turbostat08:20:003
124875399196,9cyclictest1666704-21chrt11:55:193
1248753991916,1cyclictest0-21swapper/309:45:193
124875399191,14cyclictest1419219-21taskset09:17:593
124875399191,14cyclictest1359946-21taskset08:35:133
124875399191,14cyclictest1270114-21turbostat07:25:003
124875399191,13cyclictest1522064-21taskset10:25:143
124875399191,13cyclictest1334082-21taskset08:15:003
124875399185,9cyclictest1435957-21chrt09:30:133
124875399182,12cyclictest1276258-21taskset07:27:183
1248753991816,1cyclictest0-21swapper/311:15:003
1248753991816,1cyclictest0-21swapper/310:00:023
1248753991816,1cyclictest0-21swapper/308:30:163
1248753991815,1cyclictest0-21swapper/310:35:193
124875399181,13cyclictest1692253-21taskset12:11:123
124875399181,13cyclictest1567775-21taskset10:53:263
124875399181,13cyclictest1411050-21taskset09:11:533
124875399181,13cyclictest1385438-21taskset08:55:093
124875399181,13cyclictest1320930-21chrt08:01:213
124875399181,13cyclictest1320930-21chrt08:01:213
160781121713,2sleep10-21swapper/111:20:021
15514732171,13sleep11551479-21ssh10:41:251
14719802171,8sleep01472281-21/usr/sbin/munin09:50:200
124875399174,10cyclictest1302369-21chrt07:50:123
1248753991714,1cyclictest0-21swapper/310:15:163
1248753991714,1cyclictest0-21swapper/307:40:073
1248753991712,2cyclictest0-21swapper/308:50:233
124875399171,12cyclictest1615786-21chrt11:25:123
124875399171,12cyclictest1480922-21taskset09:56:033
16839102160,3sleep21684111-21cat12:05:262
13779092161,11sleep21377951-21ntp_states08:45:232
124875399164,8cyclictest1296188-21chrt07:45:143
1248753991614,1cyclictest0-21swapper/307:10:183
124875399161,12cyclictest1313983-21taskset07:55:243
124875399161,12cyclictest1276931-21taskset07:30:143
124875399161,11cyclictest1723527-21chrt12:30:483
16934792151,11sleep01693485-21ssh12:14:380
16704472151,10sleep01670453-21ssh12:00:020
14496612151,7sleep11449663-21ssh09:35:421
14205142151,11sleep11420257-21/usr/sbin/munin09:20:141
12950492150,13sleep11295234-21cat07:40:281
12483802150,2sleep30-21swapper/307:07:183
12871112141,11sleep01288156-21memory07:35:210
12470492141,9sleep11242527-21/usr/sbin/munin07:05:201
16691452130,1sleep20-21swapper/211:57:082
16497242130,6sleep11651426-21kthreadcore11:45:201
16080842120,6sleep21607588-21sendmail-msp11:20:152
15973512121,8sleep21592118-21/usr/sbin/munin11:10:212
15764632121,3sleep21576460-21apt-get11:00:142
15660832120,3sleep11566127-21ssh10:50:231
14503032121,8sleep21450307-21ssh09:37:322
14042162120,1sleep00-21swapper/009:08:030
13970612121,8sleep01397106-21/usr/sbin/munin09:00:250
12892782121,8sleep20-21swapper/207:40:002
17305742110,8sleep21725324-21/usr/sbin/munin12:35:212
16920692110,8sleep21692075-21ssh12:10:432
16858342111,7sleep01686014-21latency_hist12:10:010
16626632111,7sleep11662613-21/usr/sbin/munin11:55:141
15438212110,7sleep21543827-21ssh10:36:532
15139772111,6sleep11514018-21ssh10:20:131
14262782110,1sleep00-21swapper/009:20:450
14034492110,1sleep20-21swapper/209:05:242
17084132100,2sleep11708419-21ssh12:22:211
17082492100,8sleep00-21swapper/012:21:550
16769522100,7sleep21676958-21ssh12:01:532
16317652102,5sleep11632353-21irqrtprio11:35:181
16075112100,7sleep11607517-21ssh11:19:581
15597152100,6sleep01559721-21ssh10:47:500
15592112100,8sleep21559217-21ssh10:46:192
15280042100,7sleep11528012-21ssh10:26:141
15061072100,7sleep21505833-21apt-get10:15:042
14655842100,3sleep21465586-21ssh09:46:372
13979102100,3sleep2222-21plymouthd09:04:152
13053032100,1sleep00-21swapper/007:50:160
12707522101,6sleep11271220-21cut07:25:161
12484422102,4sleep0222-21plymouthd07:08:070
1715134290,3sleep21715221-21ssh12:25:262
1707793290,1sleep20-21swapper/212:20:372
1700371290,2sleep0222-21plymouthd12:17:060
1684998290,1sleep10-21swapper/112:07:411
1670454291,6sleep11670458-21ssh12:00:031
1661970290,1sleep20-21swapper/211:54:042
1646102290,6sleep01646099-21sh11:43:220
1628638291,5sleep11628778-21ntpq11:30:211
1628638291,5sleep11628778-21ntpq11:30:201
1589702291,4sleep01589789-21/usr/sbin/munin11:05:270
1586782292,4sleep21588568-21kthreadcore11:05:202
1542916290,2sleep0222-21plymouthd10:35:270
1535066292,4sleep01535186-21python310:30:250
1528201294,3sleep0151ktimers/010:26:450
1519997290,2sleep0222-21plymouthd10:20:350
1505800290,6sleep21505806-21ssh10:15:002
1489952290,3sleep21489958-21ssh10:04:252
1489347290,2sleep0222-21plymouthd10:02:440
1482634291,5sleep11482380-21sendmail-msp10:00:071
1473350290,1sleep20-21swapper/209:51:302
1442730290,1sleep10-21swapper/109:33:171
1385030291,6sleep00-21swapper/008:53:150
1372172290,6sleep1222-21plymouthd08:41:291
1359427290,1sleep20-21swapper/208:32:202
1340163290,1sleep00-21swapper/008:16:350
1339587290,6sleep11334302-21/usr/sbin/munin08:15:231
1321035290,1sleep00-21swapper/008:02:450
1321035290,1sleep00-21swapper/008:02:440
1313859291,4sleep01313898-21ntpq07:55:230
1276468290,7sleep01276552-21date07:30:000
1269470291,4sleep21269715-21/usr/sbin/munin07:20:292
1725358281,4sleep11725356-21apt-get12:35:121
1723088280,4sleep11723250-21sed12:30:271
1722873281,4sleep21722915-21ntpq12:30:242
1717484281,3sleep0222-21plymouthd12:30:050
1709706281,3sleep11709712-21ssh12:25:131
1701210280,1sleep21700453-21kworker/u16:3+rpciod12:19:252
1661856280,1sleep0222-21plymouthd11:53:450
1660043280,6sleep11660090-21ntpq11:50:211
1646382280,1sleep11646388-21ssh11:44:081
1639054281,4sleep21639058-21ssh11:40:052
1637861281,4sleep01637866-21diskmemload11:37:210
1599622280,6sleep01599680-21true11:15:000
1599207280,1sleep10-21swapper/111:13:491
1569530280,5sleep21570273-21kthreadcore10:55:172
1550535281,4sleep01550574-21ntpq10:40:240
1544933281,4sleep11545010-21munin-run10:40:011
1535857281,4sleep11535863-21ssh10:31:311
1511437280,4sleep01511493-21ntpq10:15:220
1506127281,3sleep11506159-21apt-get10:15:111
1482157282,4sleep21457936-21kworker/u16:0+xprtiod09:59:362
1467805280,5sleep11468555-21kthreadcore09:50:171
1441162281,4sleep01441206-21ntpq09:30:230
1424805281,4sleep21425434-21missed_timers09:20:192
1419630281,4sleep21365887-21kworker/u16:3+xprtiod09:19:112
1404346280,2sleep10-21swapper/109:09:441
1397951280,1sleep10-21swapper/109:04:471
1386528280,6sleep2976-21sshd08:55:172
1366350281,4sleep21366503-21/usr/sbin/munin08:40:142
1365539280,2sleep10-21swapper/108:35:281
1359398280,2sleep00-21swapper/008:31:580
1322118281,5sleep00-21swapper/008:05:160
1321678281,4sleep21321878-21hddtemp_smartct08:05:142
1314652280,2sleep1222-21plymouthd07:58:161
1302332281,3sleep10-21swapper/107:50:101
1283159280,4sleep1222-21plymouthd07:35:141
1278137285,1sleep20-21swapper/207:30:192
1276774280,4sleep1222-21plymouthd07:30:131
1263893281,4sleep11263675-21sendmail-msp07:20:041
1248930281,4sleep11248932-21apt-get07:10:141
1731651270,1sleep00-21swapper/012:36:320
1648447271,3sleep0222-21plymouthd11:45:190
1629765271,3sleep2222-21plymouthd11:31:262
1629765271,3sleep2222-21plymouthd11:31:262
1621128270,5sleep20-21swapper/211:25:242
1615737271,3sleep11615774-21apt-get11:25:121
1607604271,3sleep086188-21systemd-journal11:20:010
1599983271,3sleep01600020-21apt-get11:15:130
1585726270,4sleep11586780-21cut11:05:191
1581761270,1sleep10-21swapper/111:00:251
1568632271,3sleep10-21swapper/110:55:121
1551671271,3sleep2222-21plymouthd10:41:592
1521813270,1sleep20-21swapper/210:25:062
1513933273,2sleep20-21swapper/210:20:052
1503771270,1sleep10-21swapper/110:10:261
1497134270,4sleep21372353-21kworker/u16:1+rpciod10:07:422
1496320270,1sleep10-21swapper/110:05:291
1459339271,3sleep01459378-21apt-get09:45:110
1458035270,1sleep10-21swapper/109:42:191
1442097270,5sleep21442096-21ssh09:31:262
1430911271,2sleep10-21swapper/109:25:191
1428142270,4sleep01428298-21diskstats09:25:140
1418972271,3sleep1222-21plymouthd09:17:221
1410723270,4sleep21410729-21ssh09:11:052
1385472271,3sleep11385474-21apt-get08:55:121
1379076270,3sleep20-21swapper/208:50:122
1372754270,3sleep0222-21plymouthd08:45:130
1365095271,3sleep00-21swapper/008:35:230
1355800270,4sleep11357629-21tr08:30:191
1352361271,4sleep11352405-21ntpq08:25:221
1346883271,3sleep0222-21plymouthd08:24:570
1328913270,4sleep01329959-21grep08:10:170
1327585270,3sleep1222-21plymouthd08:09:501
1308709271,3sleep21308731-21apt-get07:55:122
1301251270,4sleep11301371-21grep07:45:251
1300380270,4sleep01301023-21cat07:45:200
1294842271,3sleep21294884-21ntpq07:40:242
1269753270,2sleep00-21swapper/007:20:460
1254723270,1sleep20-21swapper/207:11:022
1242563270,3sleep20-21swapper/207:05:132
1709666261,2sleep00-21swapper/012:25:130
1700483261,2sleep10-21swapper/112:17:231
1686170260,2sleep10-21swapper/112:10:141
1669871261,2sleep00-21swapper/011:59:140
1647007260,2sleep21647048-21ssh11:45:132
1632356261,2sleep20-21swapper/211:35:192
1615943260,3sleep01616063-21perl11:25:140
1599974260,1sleep20-21swapper/211:15:102
1582393262,2sleep0151ktimers/011:00:410
1567577260,4sleep0222-21plymouthd10:52:510
1563155261,3sleep20-21swapper/210:50:202
1558464260,3sleep11558581-21sed10:45:261
1496421260,1sleep00-21swapper/010:05:440
1474951260,2sleep00-21swapper/009:55:130
1465767260,3sleep1222-21plymouthd09:47:081
1451532260,3sleep21451529-21apt-get09:40:122
1451435261,2sleep00-21swapper/009:40:020
1443699260,3sleep01443705-21ssh09:35:130
1412420260,3sleep0222-21plymouthd09:15:120
1404684261,2sleep1222-21plymouthd09:10:121
1384976260,3sleep10-21swapper/108:52:321
1378665260,3sleep1222-21plymouthd08:48:111
1371840261,3sleep01372084-21/usr/sbin/munin08:40:280
1352934260,4sleep20-21swapper/208:25:392
1348451261,3sleep01349458-21kthreadcore08:25:170
1346763260,1sleep10-21swapper/108:23:251
1334338260,3sleep21334482-21df08:15:122
1333701260,3sleep1222-21plymouthd08:10:471
1327886261,2sleep20-21swapper/208:10:032
1320984260,2sleep1222-21plymouthd08:02:041
1320984260,2sleep1222-21plymouthd08:02:041
1307434261,2sleep2222-21plymouthd07:50:192
1294925260,3sleep01295048-21python307:40:260
1263526260,1sleep00-21swapper/007:18:540
1263518260,3sleep2222-21plymouthd07:18:482
1630749250,3sleep00-21swapper/011:34:160
1630749250,3sleep00-21swapper/011:34:160
1573916250,2sleep01573962-21ntpq10:55:230
1530095250,3sleep21530741-21irqrtprio10:30:152
1497965250,2sleep0222-21plymouthd10:10:020
1474873252,1sleep10-21swapper/109:55:061
1428100250,2sleep20-21swapper/209:25:122
1390688250,3sleep01390721-21ld08:55:240
1359910250,2sleep21359943-21apt-get08:35:132
1340507250,3sleep21340494-21sendmail-msp08:20:022
1320929250,2sleep2222-21plymouthd08:01:212
1320929250,2sleep2222-21plymouthd08:01:212
1281996250,2sleep00-21swapper/007:30:240
1271222250,3sleep21272033-21kthreadcore07:25:172
1255086250,2sleep10-21swapper/107:15:021
1254716250,3sleep00-21swapper/007:10:560
1409969240,1sleep01410016-21ssh09:10:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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