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2025-12-18 - 21:58
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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 rackbslot1.osadl.org (updated Thu Dec 18, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14008682214159,13sleep20-21swapper/207:07:462
14009992210159,41sleep10-21swapper/107:09:221
14008452209173,10sleep00-21swapper/007:07:280
14009912177153,14sleep30-21swapper/307:09:163
1401268996258,3cyclictest1479123-21kworker/u8:3+flush-179:009:50:150
1401275996150,10cyclictest1701282-21kworker/u8:1+events_unbound12:10:141
1401268996158,2cyclictest1300200-21kworker/u8:2+flush-179:008:40:100
1401282995955,3cyclictest1546639-21kworker/u8:2+flush-179:009:45:123
1401282995853,4cyclictest1618923-21kworker/u8:0+flush-179:011:00:343
1401282995752,4cyclictest1577567-21kworker/u8:1+flush-179:010:10:003
1401268995740,15cyclictest1516365-21/usr/share/muni09:00:030
1401282995649,5cyclictest1443920-21/usr/share/muni07:50:103
1401275995652,3cyclictest1479123-21kworker/u8:3+flush-179:009:05:301
1401268995652,3cyclictest1649973-21kworker/u8:2+events_unbound11:15:170
1401278995536,18cyclictest1438702-26chrome07:45:022
1401275995552,2cyclictest1432954-21kworker/u8:0+flush-179:007:40:161
1401275995549,4cyclictest1600234-21apt-get10:20:141
1401268995551,3cyclictest1349322-21kworker/u8:1+flush-179:007:25:150
1401268995539,15cyclictest1685888-21kworker/u8:0+flush-179:011:45:180
1401278995450,3cyclictest1675624-21munin-update11:35:352
1401275995451,2cyclictest1577567-21kworker/u8:1+events_unbound11:10:271
1401275995450,3cyclictest1411964-21kworker/u8:3+events_unbound07:35:091
1401275995350,2cyclictest1721904-21kworker/u8:1+events_unbound12:35:321
1401275995350,2cyclictest1567562-21kworker/u8:0+events_unbound09:50:101
1401275995350,2cyclictest1300200-21kworker/u8:2+events_unbound08:37:521
1401275995349,3cyclictest1479126-21kworker/u8:5+events_unbound09:25:101
1401282995247,3cyclictest1521597-21/usr/share/muni09:05:163
1401278995246,4cyclictest1686153-21CacheThread_Blo11:45:012
1401275995248,3cyclictest1400929-21kworker/u8:0+flush-179:007:15:271
1401268995249,2cyclictest1567657-21kworker/u8:4+flush-179:009:55:270
1401268995248,3cyclictest1654815-21kworker/u8:3+flush-179:011:30:130
1401278995129,21cyclictest1690790-21kworker/u8:2+flush-179:012:10:302
1401275995147,3cyclictest1577567-21kworker/u8:1+flush-179:010:15:281
1401275995145,2cyclictest1443436-21kworker/u8:3+flush-179:007:56:531
1401268995148,2cyclictest1479126-21kworker/u8:5+events_unbound08:50:260
1401268995148,2cyclictest1300200-21kworker/u8:2+flush-179:008:35:210
1401268995146,4cyclictest1469145-21kworker/u8:0+events_unbound08:15:140
1401282995045,3cyclictest1593244-21kworker/u8:3+flush-179:010:14:453
1401275995047,2cyclictest1567657-21kworker/u8:4+flush-179:010:05:511
1401275995047,2cyclictest1567562-21kworker/u8:0+events_unbound09:55:301
1401275995042,7cyclictest1577567-21kworker/u8:1+flush-179:010:50:221
1401268995047,2cyclictest1526153-21kworker/u8:0+flush-179:009:31:200
1401268995047,2cyclictest1526153-21kworker/u8:0+flush-179:009:31:200
1401282994944,4cyclictest3125725-21ThreadPoolForeg08:25:153
1401275994946,2cyclictest1300200-21kworker/u8:2+flush-179:007:20:361
1401268994946,2cyclictest1716797-21kworker/u8:3+events_unbound12:13:530
1401268994946,2cyclictest1618923-21kworker/u8:0+flush-179:011:00:230
1401268994945,3cyclictest1479126-21kworker/u8:5+flush-179:009:10:150
1401282994844,3cyclictest1300200-21kworker/u8:2+flush-179:008:40:213
1401282994843,3cyclictest1567562-21kworker/u8:0+flush-179:010:20:233
1401278994831,15cyclictest247516-21Chrome_ChildIOT07:16:342
1401268994845,3cyclictest1665145-21kworker/u8:4+flush-179:011:35:180
1401268994845,2cyclictest1544707-21kworker/u8:1+flush-179:009:45:310
1401268994844,3cyclictest1577567-21kworker/u8:1+flush-179:010:55:310
1401268994844,3cyclictest1432954-21kworker/u8:0+flush-179:007:45:390
1401268994843,4cyclictest1479123-21kworker/u8:3+events_unbound09:25:130
1401268994842,4cyclictest3125688-21Chrome_ChildIOT08:00:210
1401282994743,3cyclictest1690790-21kworker/u8:2+flush-179:012:00:373
1401282994742,4cyclictest1400929-21kworker/u8:0+flush-179:007:15:003
1401275994744,2cyclictest1349322-21kworker/u8:1+events_unbound07:14:211
1401275994742,2cyclictest1411964-21kworker/u8:3+flush-179:007:30:281
1401275994734,12cyclictest1119791-1kworker/1:1H+kblockd08:29:131
1401275994731,15cyclictest1526267-1kworker/1:2H+kblockd10:40:361
1401282994642,3cyclictest1526153-21kworker/u8:0+events_unbound09:25:333
1401282994642,3cyclictest1300200-21kworker/u8:2+flush-179:008:45:313
1401282994642,3cyclictest1300200-21kworker/u8:2+flush-179:007:35:173
1401282994641,4cyclictest1437964-31munin-graph07:41:053
1401282994640,4cyclictest1578348-21/usr/share/muni10:00:213
1401282994639,5cyclictest3125724-21ThreadPoolForeg08:00:103
1401275994643,2cyclictest1479126-21kworker/u8:5+flush-179:008:55:321
1401275994641,4cyclictest1701646-21/usr/share/muni12:00:161
1401275994637,8cyclictest1479126-21kworker/u8:5+events_unbound08:40:251
1401268994644,2cyclictest1300200-21kworker/u8:2+flush-179:008:55:110
1401268994641,3cyclictest1567562-21kworker/u8:0+events_unbound10:17:020
1401268994631,14cyclictest1623946-21kworker/u8:4+flush-179:010:54:590
1401282994543,1cyclictest1411964-21kworker/u8:3+flush-179:007:20:093
1401278994542,2cyclictest1300200-21kworker/u8:2+flush-179:007:55:062
1401278994532,2cyclictest1700463-21kworker/2:1+pm12:35:562
1401278994531,2cyclictest1700463-21kworker/2:1+pm12:29:212
1401275994543,2cyclictest1690790-21kworker/u8:2+events_unbound11:57:091
1401275994542,2cyclictest1654815-21kworker/u8:3+events_unbound11:23:501
1401275994542,2cyclictest1544707-21kworker/u8:1+events_unbound09:36:401
1401275994542,2cyclictest1517988-21kworker/u8:1+events_unbound09:14:281
1401268994542,2cyclictest1665145-21kworker/u8:4+flush-179:011:40:220
1401268994542,2cyclictest1400929-21kworker/u8:0+flush-179:007:10:280
1401268994541,3cyclictest1654815-21kworker/u8:3+flush-179:011:20:300
1401268994540,4cyclictest1413904-21apt-get07:20:130
1401268994531,13cyclictest1613764-21kworker/u8:3+flush-179:010:34:280
1401268994531,13cyclictest1479126-21kworker/u8:5+events_unbound08:34:560
1401282994440,3cyclictest1551654-31munin-graph09:31:283
1401282994440,3cyclictest1551654-31munin-graph09:31:283
1401278994439,3cyclictest1665145-21kworker/u8:4+flush-179:012:02:492
1401278994437,5cyclictest1479126-21kworker/u8:5+flush-179:009:20:002
1401275994441,2cyclictest1567657-21kworker/u8:4+events_unbound10:10:101
1401268994441,2cyclictest1690790-21kworker/u8:2+events_unbound12:30:090
1401268994441,2cyclictest1690790-21kworker/u8:2+events_unbound12:30:090
1401268994441,2cyclictest1618923-21kworker/u8:0+flush-179:011:09:210
1401268994441,2cyclictest1526153-21kworker/u8:0+flush-179:009:20:240
1401268994441,2cyclictest1526153-21kworker/u8:0+events_unbound09:35:220
1401268994439,3cyclictest1558658-21apt-get09:40:130
1401268994438,4cyclictest1624249-21latency_hist10:45:010
15613492430,0chrt1561350-21ld09:40:273
1401282994340,2cyclictest1479126-21kworker/u8:5+flush-179:009:00:103
1401282994338,4cyclictest247560-21ThreadPoolForeg10:40:103
1401282994338,4cyclictest1479123-21kworker/u8:3+flush-179:009:35:303
1401282994338,3cyclictest1526153-21kworker/u8:0+flush-179:009:20:163
1401278994340,2cyclictest1453553-21kworker/2:1+pm08:00:312
1401278994338,3cyclictest1577567-21kworker/u8:1+flush-179:011:40:112
1401278994328,3cyclictest1369911-21kworker/2:0+pm07:50:192
1401278994323,19cyclictest1544707-21kworker/u8:1+flush-179:009:40:562
1401275994340,2cyclictest1349322-21kworker/u8:1+events_unbound07:50:301
1401275994338,4cyclictest1561887-31munin-html09:40:401
1401275994333,10cyclictest1577567-21kworker/u8:1+flush-179:011:35:241
1401275994332,10cyclictest1618923-21kworker/u8:0+flush-179:011:06:571
1401275994330,12cyclictest1618923-21kworker/u8:0+flush-179:011:19:351
1401268994341,2cyclictest1577567-21kworker/u8:1+flush-179:011:25:200
1401268994340,2cyclictest1349322-21kworker/u8:1+flush-179:008:08:440
1401268994339,3cyclictest1577567-21kworker/u8:1+events_unbound10:05:230
1401282994239,2cyclictest1721904-21kworker/u8:1+events_unbound12:35:003
1401282994239,2cyclictest1721904-21kworker/u8:1+events_unbound12:35:003
1401282994236,4cyclictest1675867-21/usr/share/muni11:35:043
1401278994239,2cyclictest1453553-21kworker/2:1+pm08:12:372
1401278994238,2cyclictest1453553-21kworker/2:1+pm08:35:042
1401278994237,4cyclictest1649973-21kworker/u8:2+flush-179:011:15:252
1401278994237,3cyclictest247557-21chrome07:33:122
1401278994237,3cyclictest1673507-21kworker/2:0+pm11:32:202
1401278994237,3cyclictest1546741-21kworker/2:0+pm10:30:032
1401278994236,3cyclictest1546741-21kworker/2:0+pm09:34:562
1401278994236,3cyclictest1546741-21kworker/2:0+pm09:34:552
1401275994240,2cyclictest1300200-21kworker/u8:2+flush-179:008:45:191
1401275994239,2cyclictest1463813-21kworker/u8:3+events_unbound08:10:521
1401275994238,3cyclictest1580371-21kworker/u8:2+events_unbound10:02:431
1401275994236,4cyclictest1516370-21/usr/share/muni09:00:011
1401268994238,3cyclictest1696029-21kworker/u8:0+flush-179:012:21:440
1401268994237,4cyclictest1479123-21kworker/u8:3+flush-179:009:08:410
1401268994237,4cyclictest1448018-21munin-limits07:50:330
14852382410,1chrt1485237-21packagekitd08:30:023
1401282994137,3cyclictest1618923-21kworker/u8:0+flush-179:011:10:113
1401282994137,3cyclictest1577567-21kworker/u8:1+flush-179:011:30:313
1401278994137,3cyclictest1453553-21kworker/2:1+pm09:25:042
1401278994136,3cyclictest1634931-21/usr/share/muni10:55:192
1401278994136,3cyclictest1546741-21kworker/2:0+pm09:51:052
1401278994135,4cyclictest1369911-21kworker/2:0+pm07:26:152
1401278994127,13cyclictest3125624-21chromedriver12:09:322
140127899411,15cyclictest247557-21chrome08:41:062
1401275994138,3cyclictest1577567-21kworker/u8:1+flush-179:011:45:321
1401275994138,2cyclictest1696029-21kworker/u8:0+flush-179:012:30:371
1401275994138,2cyclictest1696029-21kworker/u8:0+flush-179:012:30:361
1401275994138,2cyclictest1665145-21kworker/u8:4+flush-179:012:05:021
1401275994138,2cyclictest1567562-21kworker/u8:0+events_unbound10:28:461
1401275994138,2cyclictest1479126-21kworker/u8:5+flush-179:009:20:321
1401275994137,3cyclictest1484301-21kworker/u8:6+events_unbound08:34:031
1401275994137,3cyclictest1458710-21kworker/u8:0+flush-179:008:06:401
1401275994135,4cyclictest1469412-21/usr/share/muni08:15:021
1401275994135,3cyclictest1517988-21kworker/u8:1+events_unbound09:18:041
1401268994138,2cyclictest1696029-21kworker/u8:0+flush-179:012:35:170
1401268994138,2cyclictest1567562-21kworker/u8:0+events_unbound10:27:100
1401268994137,3cyclictest1665145-21kworker/u8:4+flush-179:012:04:050
1401268994137,3cyclictest1577567-21kworker/u8:1+events_unbound11:10:320
1401268994136,4cyclictest1300200-21kworker/u8:2+flush-179:008:45:330
1401282994036,3cyclictest1690790-21kworker/u8:2+events_unbound12:20:183
1401282994036,3cyclictest1577567-21kworker/u8:1+events_unbound11:15:123
1401282994036,3cyclictest1567562-21kworker/u8:0+flush-179:009:55:003
1401282994036,3cyclictest1349322-21kworker/u8:1+flush-179:007:55:273
1401278994037,2cyclictest1453553-21kworker/2:1+pm08:08:022
1401278994037,2cyclictest1369911-21kworker/2:0+pm07:35:342
1401278994036,2cyclictest1546741-21kworker/2:0+pm11:10:302
1401278994036,2cyclictest1546741-21kworker/2:0+pm10:07:102
1401278994036,2cyclictest1546741-21kworker/2:0+pm09:38:402
1401278994035,3cyclictest1562823-1kworker/2:2H+kblockd09:45:162
1401278994025,14cyclictest1260-21snmpd10:16:332
140127899402,34cyclictest247557-21chrome12:16:332
140127899401,37cyclictest3125648-13Chrome_IOThread11:25:552
1401275994037,2cyclictest1608620-21kworker/u8:2+flush-179:010:35:151
1401275994037,2cyclictest1300200-21kworker/u8:2+flush-179:008:24:531
1401275994036,3cyclictest1479123-21kworker/u8:3+events_unbound08:54:511
1401275994024,16cyclictest1721904-21kworker/u8:1+flush-179:012:22:471
1401268994036,3cyclictest1400929-21kworker/u8:0+events_unbound07:15:120
1401268994036,2cyclictest1716797-21kworker/u8:3+flush-179:012:15:210
1401268994035,4cyclictest1588686-21/usr/share/muni10:10:030
1401282993936,2cyclictest1349322-21kworker/u8:1+events_unbound08:10:503
1401282993935,3cyclictest1479126-21kworker/u8:5+flush-179:008:35:323
1401282993935,3cyclictest1470243-21kworker/u8:4+flush-179:008:16:433
1401282993934,4cyclictest1527988-21apt-get09:10:163
1401282993932,5cyclictest247560-21ThreadPoolForeg10:15:313
1401278993937,1cyclictest1673507-21kworker/2:0+pm11:56:172
1401278993937,1cyclictest1546741-21kworker/2:0+pm10:12:352
1401278993936,2cyclictest1546741-21kworker/2:0+pm10:51:472
1401278993936,2cyclictest1546741-21kworker/2:0+pm10:27:452
1401278993936,2cyclictest1546741-21kworker/2:0+pm10:00:052
1401278993936,2cyclictest1453553-21kworker/2:1+pm09:22:582
1401278993936,2cyclictest1453553-21kworker/2:1+pm09:01:112
1401278993936,2cyclictest1453553-21kworker/2:1+pm08:30:152
1401278993935,3cyclictest1453553-21kworker/2:1+pm08:57:192
1401278993935,3cyclictest1289553-1kworker/2:1H+kblockd08:27:192
1401278993935,2cyclictest1700463-21kworker/2:1+pm12:30:072
1401278993935,2cyclictest1700463-21kworker/2:1+pm12:30:072
1401278993935,2cyclictest1546741-21kworker/2:0+pm11:09:472
1401278993935,2cyclictest1546741-21kworker/2:0+pm10:45:132
1401278993935,2cyclictest1546741-21kworker/2:0+pm10:40:062
1401278993935,2cyclictest1546741-21kworker/2:0+pm10:20:132
1401278993935,2cyclictest1453553-21kworker/2:1+pm08:20:122
1401278993934,4cyclictest1453553-21kworker/2:1+pm08:46:122
1401278993934,3cyclictest1546741-21kworker/2:0+pm10:37:072
1401278993932,5cyclictest1473532-31munin-html08:15:402
1401275993936,3cyclictest1665145-21kworker/u8:4+events_unbound11:43:061
1401275993936,3cyclictest1546639-21kworker/u8:2+events_unbound09:45:071
1401275993936,2cyclictest1577567-21kworker/u8:1+events_unbound11:30:101
1401275993936,2cyclictest1432954-21kworker/u8:0+events_unbound07:47:041
1401275993935,3cyclictest1577567-21kworker/u8:1+events_unbound10:55:121
1401268993936,2cyclictest1469145-21kworker/u8:0+flush-179:008:25:210
1401268993936,2cyclictest1300200-21kworker/u8:2+flush-179:007:41:100
1401268993935,3cyclictest1608620-21kworker/u8:2+flush-179:010:35:060
1401268993935,3cyclictest1577567-21kworker/u8:1+flush-179:010:01:380
140126899392,36cyclictest99883-21in:imklog09:16:510
1401282993835,2cyclictest1618923-21kworker/u8:0+events_unbound10:51:293
1401282993834,3cyclictest3966394-1kworker/3:2H+kblockd12:17:083
1401282993834,3cyclictest3966394-1kworker/3:2H+kblockd11:46:013
1401282993834,3cyclictest1690790-21kworker/u8:2+flush-179:012:10:063
1401282993834,3cyclictest1618923-21kworker/u8:0+flush-179:011:26:563
1401282993833,4cyclictest247561-21ThreadPoolForeg08:52:443
1401282993833,3cyclictest1443436-21kworker/u8:3+flush-179:007:49:093
1401278993836,1cyclictest1546741-21kworker/2:0+pm11:03:282
1401278993836,1cyclictest1369911-21kworker/2:0+pm07:20:182
1401278993835,2cyclictest1453553-21kworker/2:1+pm09:05:112
1401278993834,3cyclictest1562823-1kworker/2:2H+kblockd11:20:102
1401278993834,3cyclictest1453553-21kworker/2:1+pm09:10:342
1401278993834,2cyclictest1546741-21kworker/2:0+pm09:55:022
140127899381,12cyclictest1510218-31munin-html08:50:392
1401275993835,2cyclictest1654815-21kworker/u8:3+events_unbound11:25:161
1401275993835,2cyclictest1577567-21kworker/u8:1+events_unbound11:02:521
1401275993835,2cyclictest1577567-21kworker/u8:1+events_unbound10:32:331
1401275993834,3cyclictest1690790-21kworker/u8:2+events_unbound12:17:251
1401275993834,3cyclictest1618923-21kworker/u8:0+flush-179:010:45:381
1401275993834,3cyclictest1349322-21kworker/u8:1+flush-179:008:00:171
1401268993835,2cyclictest1665145-21kworker/u8:4+flush-179:012:05:320
1401268993835,2cyclictest1618923-21kworker/u8:0+events_unbound10:45:340
1401268993834,3cyclictest1721904-21kworker/u8:1+events_unbound12:26:570
1401268993834,3cyclictest1411964-21kworker/u8:3+flush-179:007:35:400
1401268993834,3cyclictest1300200-21kworker/u8:2+events_unbound07:32:140
1401282993734,2cyclictest3966394-1kworker/3:2H+kblockd11:50:063
1401282993734,2cyclictest1567562-21kworker/u8:0+flush-179:010:25:333
1401282993731,5cyclictest1349322-21kworker/u8:1+flush-179:007:25:143
1401278993732,4cyclictest1300200-21kworker/u8:2+flush-179:007:45:012
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1401282993431,2cyclictest1516024-21kworker/3:0+pm09:17:493
1401282993430,3cyclictest1349322-21kworker/u8:1+flush-179:008:09:143
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1401282993429,4cyclictest1707046-21/usr/share/muni12:05:163
1401282993429,4cyclictest1654815-21kworker/u8:3+events_unbound11:24:113
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1401282993329,3cyclictest3125728-13Compositor11:09:163
1401282993227,3cyclictest1618923-21kworker/u8:0+flush-179:010:45:253
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