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2025-11-03 - 06:42
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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 all highest latencies:
System rackbslot1.osadl.org (updated Sun Nov 02, 2025 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2058902218188,20sleep20-21swapper/207:06:262
2061682216186,19sleep30-21swapper/307:09:203
2053902206182,14sleep10-21swapper/107:05:331
2060802197174,14sleep00-21swapper/007:08:110
206447998844,43cyclictest305140-21apache_processe08:45:022
206446997471,2cyclictest206054-21kworker/u8:4+events_unbound08:20:351
206445996762,4cyclictest528433-21kworker/u8:0+events_unbound12:40:010
206445996417,45cyclictest305093-21chrome08:45:020
206447996258,3cyclictest434864-21kworker/u8:1+events_unbound12:00:352
206449996055,4cyclictest435253-21munin-update10:50:343
206447996056,3cyclictest205934-21kworker/u8:3+flush-179:007:20:342
206447995753,3cyclictest248473-21kworker/u8:0+events_unbound08:50:302
206446995752,3cyclictest402848-31munin-html10:15:341
20644599579,46cyclictest247562-13Chrome_ChildIOT12:15:110
206445995751,4cyclictest196092-21kworker/u8:1+flush-179:007:48:180
206447995652,3cyclictest206054-21kworker/u8:4+events_unbound08:30:342
206445995651,3cyclictest294178-21kworker/u8:3+flush-179:010:00:340
206447995553,2cyclictest356471-21kworker/u8:4+events_unbound09:35:192
206447995553,2cyclictest356471-21kworker/u8:4+events_unbound09:35:192
206447995450,3cyclictest340418-31munin-html09:15:352
206446995450,3cyclictest247447-21ChromeDriver00:55:191
206449995341,11cyclictest247515-21ThreadPoolForeg11:10:243
206449995338,13cyclictest367424-21chrome09:45:013
206446995350,2cyclictest362082-21kworker/u8:0+flush-179:010:00:321
206445995349,3cyclictest248473-21kworker/u8:0+events_unbound09:10:090
206447995244,3cyclictest206054-21kworker/u8:4+events_unbound07:15:142
206446995249,2cyclictest434864-21kworker/u8:1+events_unbound11:50:291
206445995249,3cyclictest413515-21kworker/u8:4+flush-179:011:00:010
206446995147,3cyclictest487034-21/usr/share/muni11:40:141
206446995147,3cyclictest362082-21kworker/u8:0+events_unbound10:05:361
3570882500,1chrt357083-21snmp_wanswitch.09:35:010
3570882500,1chrt357083-21snmp_wanswitch.09:35:010
206449995041,6cyclictest299934-21/usr/share/muni08:40:143
206447995047,2cyclictest434864-21kworker/u8:1+flush-179:011:55:162
206447995046,3cyclictest196092-21kworker/u8:1+events_unbound07:30:342
20644699500,2cyclictest305166-21snmp_areswitch.08:45:021
206447994946,2cyclictest196092-21kworker/u8:1+flush-179:007:10:312
206446994947,2cyclictest196092-21kworker/u8:1+events_unbound07:38:471
206446994946,2cyclictest508397-21kworker/u8:2+flush-179:012:25:301
206446994945,3cyclictest434864-21kworker/u8:1+events_unbound12:05:281
20644599490,48cyclictest247449-2159acd6cd00851b411:05:180
206449994841,4cyclictest351421-21latency_hist09:30:003
206447994845,2cyclictest336070-21kworker/u8:2+events_unbound10:20:062
206447994844,3cyclictest248473-21kworker/u8:0+events_unbound09:25:302
206447994834,14cyclictest314881-21kworker/u8:1+events_unbound09:05:232
206446994845,2cyclictest248473-21kworker/u8:0+flush-179:008:55:151
206445994841,5cyclictest430104-21/usr/share/muni10:45:210
206445994841,5cyclictest247515-21ThreadPoolForeg12:30:230
206447994744,2cyclictest450163-21kworker/u8:2+flush-179:011:10:092
206447994743,3cyclictest476262-21kworker/u8:2+events_unbound11:30:012
206447994743,3cyclictest434864-21kworker/u8:1+flush-179:011:50:162
206446994744,2cyclictest362082-21kworker/u8:0+events_unbound09:40:331
206446994743,3cyclictest372733-21/usr/share/muni09:50:091
206449994641,4cyclictest502465-21cat11:55:003
206449994631,14cyclictest3891138-1kworker/3:2H+kblockd10:38:403
206447994643,2cyclictest362082-21kworker/u8:0+events_unbound10:30:132
206447994642,3cyclictest434864-21kworker/u8:1+flush-179:011:39:422
206447994642,3cyclictest248473-21kworker/u8:0+flush-179:009:20:272
206447994642,2cyclictest430051-21chrome10:45:012
206447994641,4cyclictest238259-21/usr/share/muni07:40:162
206447994641,4cyclictest238259-21/usr/share/muni07:40:162
206447994640,4cyclictest383228-21/usr/share/muni10:00:122
206446994642,3cyclictest206054-21kworker/u8:4+flush-179:007:25:251
206445994642,3cyclictest304387-21kworker/u8:2+flush-179:008:55:380
206445994640,4cyclictest294831-21/usr/share/muni08:35:210
206447994542,2cyclictest413515-21kworker/u8:4+events_unbound10:37:062
206447994541,3cyclictest196092-21kworker/u8:1+flush-179:007:45:222
206446994543,2cyclictest336070-21kworker/u8:2+events_unbound09:57:521
206446994541,3cyclictest315695-21cp08:55:011
206446994541,3cyclictest247561-21ThreadPoolForeg09:15:291
206446994540,4cyclictest247516-21Chrome_ChildIOT08:25:191
206446994539,4cyclictest538422-21/usr/share/muni12:30:141
206446994534,10cyclictest491523-21kworker/u8:3+events_unbound11:57:311
206445994542,2cyclictest336070-21kworker/u8:2+flush-179:009:15:330
206449994437,5cyclictest269234-21/usr/share/muni08:10:123
20644999440,3cyclictest247516-21Chrome_ChildIOT09:57:593
206447994440,3cyclictest508397-21kworker/u8:2+flush-179:012:10:092
206447994440,3cyclictest508397-21kworker/u8:2+flush-179:012:10:092
206447994440,3cyclictest398272-21kworker/u8:3+events_unbound11:02:522
206446994442,2cyclictest434864-21kworker/u8:1+flush-179:011:07:161
206446994440,3cyclictest356994-21cp09:35:001
206446994440,3cyclictest314881-21kworker/u8:1+events_unbound09:12:361
206445994439,4cyclictest299933-21/usr/share/muni08:40:190
206445994439,4cyclictest248473-21kworker/u8:0+events_unbound09:25:350
206449994336,5cyclictest76405-21systemd-journal08:51:173
206449994334,8cyclictest3891138-1kworker/3:2H+kblockd10:55:143
206447994340,3cyclictest206054-21kworker/u8:4+flush-179:007:55:372
206447994340,3cyclictest206054-21kworker/u8:4+flush-179:007:55:372
206447994340,2cyclictest362082-21kworker/u8:0+events_unbound10:27:092
206447994339,3cyclictest336070-21kworker/u8:2+events_unbound09:50:322
206447994339,3cyclictest289229-21kworker/u8:1+events_unbound08:37:272
206447994338,4cyclictest196092-21kworker/u8:1+events_unbound08:01:562
206446994341,2cyclictest336070-21kworker/u8:2+events_unbound09:20:341
206446994341,2cyclictest196092-21kworker/u8:1+events_unbound08:00:301
206445994340,2cyclictest492122-13chrome11:45:020
206445994340,2cyclictest336070-21kworker/u8:2+flush-179:009:55:090
206445994339,3cyclictest508397-21kworker/u8:2+events_unbound12:05:340
206445994339,3cyclictest434864-21kworker/u8:1+flush-179:011:00:100
206445994339,3cyclictest205934-21kworker/u8:3+flush-179:007:45:000
206445994339,3cyclictest205934-21kworker/u8:3+flush-179:007:44:590
206445994337,4cyclictest476817-21/usr/share/muni11:30:170
206445994337,4cyclictest460999-21/usr/share/muni11:15:130
20644599430,42cyclictest247557-21chrome08:25:340
206449994238,2cyclictest3891138-1kworker/3:2H+kblockd12:39:423
206447994239,3cyclictest392919-21kworker/u8:4+flush-179:010:10:182
206447994239,3cyclictest314881-21kworker/u8:1+flush-179:009:13:522
206447994239,2cyclictest528433-21kworker/u8:0+events_unbound12:24:392
206447994239,2cyclictest248473-21kworker/u8:0+events_unbound08:16:292
206447994239,2cyclictest196092-21kworker/u8:1+flush-179:008:05:212
206447994238,3cyclictest465675-21kworker/u8:0+flush-179:011:25:292
206447994238,3cyclictest398272-21kworker/u8:3+events_unbound10:56:172
206447994238,3cyclictest382345-21kworker/u8:1+events_unbound10:06:142
206447994236,2cyclictest450163-21kworker/u8:2+events_unbound11:20:152
206447994229,2cyclictest205934-21kworker/u8:3+events_unbound07:39:242
206446994239,2cyclictest248473-21kworker/u8:0+flush-179:009:09:081
206446994237,4cyclictest466512-21/usr/share/muni11:20:021
206446994230,11cyclictest362082-21kworker/u8:0+events_unbound10:29:051
206449994136,4cyclictest434864-21kworker/u8:1+flush-179:011:35:143
206447994139,2cyclictest539763-21kworker/u8:4+events_unbound12:37:412
206447994138,2cyclictest539763-21kworker/u8:4+flush-179:012:30:222
206447994138,2cyclictest517487-21kworker/u8:3+events_unbound12:15:072
206447994138,2cyclictest263602-21kworker/2:0+pm09:45:012
206446994139,2cyclictest392919-21kworker/u8:4+events_unbound10:12:531
206446994138,2cyclictest517487-21kworker/u8:3+flush-179:012:12:381
206446994138,2cyclictest517487-21kworker/u8:3+flush-179:012:12:371
20644599410,39cyclictest247516-21Chrome_ChildIOT11:23:580
206449994036,3cyclictest508397-21kworker/u8:2+flush-179:012:10:063
206449994036,3cyclictest508397-21kworker/u8:2+flush-179:012:10:063
206449994034,3cyclictest3891138-1kworker/3:2H+kblockd07:41:493
206449994034,3cyclictest3891138-1kworker/3:2H+kblockd07:41:493
206449994031,7cyclictest247518-21ThreadPoolForeg11:30:233
206449994027,11cyclictest3891138-1kworker/3:2H+kblockd10:34:503
206449994025,14cyclictest434864-21kworker/u8:1+flush-179:012:15:113
206447994037,2cyclictest481483-21kworker/2:2+pm12:05:542
206447994037,2cyclictest413830-21kworker/2:3+pm10:44:172
206447994037,2cyclictest294178-21kworker/u8:3+flush-179:009:42:562
206446994038,2cyclictest248473-21kworker/u8:0+flush-179:009:00:521
206446994037,2cyclictest547590-31munin-html12:35:351
206446994037,2cyclictest248473-21kworker/u8:0+events_unbound09:26:531
206446994036,3cyclictest398272-21kworker/u8:3+events_unbound10:20:381
206446994035,4cyclictest289713-21/usr/share/muni08:30:041
206446994033,7cyclictest196092-21kworker/u8:1+flush-179:007:45:171
206445994036,3cyclictest260828-21kworker/u8:2+flush-179:008:00:370
206445994035,4cyclictest196092-21kworker/u8:1+events_unbound07:15:300
206445994033,3cyclictest398272-21kworker/u8:3+flush-179:010:38:430
3776142390,1chrt377582-21munin-update09:55:003
206449993936,1cyclictest211454-21kworker/3:3+pm07:24:343
206449993934,3cyclictest305077-13Chrome_IOThread08:45:013
206447993938,0cyclictest1260-21snmpd10:53:542
206447993936,2cyclictest481379-21kworker/u8:0+flush-179:011:40:242
206447993936,2cyclictest377644-21kworker/2:2+pm10:19:542
206447993936,2cyclictest206054-21kworker/u8:4+flush-179:007:25:142
206446993936,2cyclictest413515-21kworker/u8:4+flush-179:010:52:131
206446993936,2cyclictest413514-21kworker/u8:2+flush-179:010:30:181
206446993936,2cyclictest248473-21kworker/u8:0+events_unbound08:11:291
206446993936,2cyclictest206054-21kworker/u8:4+events_unbound08:35:181
206446993936,2cyclictest206054-21kworker/u8:4+events_unbound08:06:081
206445993935,3cyclictest336070-21kworker/u8:2+flush-179:009:40:260
206445993933,4cyclictest253308-31munin-graph07:50:490
20644599390,37cyclictest247561-21ThreadPoolForeg11:55:220
206449993835,2cyclictest486897-21kworker/3:2+pm11:47:403
206449993835,2cyclictest3891138-1kworker/3:2H+kblockd10:41:573
206449993834,2cyclictest3891138-1kworker/3:2H+kblockd11:22:083
206449993834,2cyclictest382875-21kworker/3:0+pm11:15:163
206449993833,4cyclictest3891138-1kworker/3:2H+kblockd10:28:043
206449993833,3cyclictest3891138-1kworker/3:2H+kblockd10:45:033
206449993833,3cyclictest3891138-1kworker/3:2H+kblockd10:08:393
206449993833,3cyclictest196092-21kworker/u8:1+flush-179:007:45:043
206447993836,2cyclictest304387-21kworker/u8:2+events_unbound08:42:482
206447993836,1cyclictest377644-21kworker/2:2+pm09:58:542
206447993836,1cyclictest243722-21kworker/2:2+pm07:50:152
206447993835,2cyclictest528433-21kworker/u8:0+events_unbound12:25:202
206447993835,2cyclictest435001-21kworker/2:0+pm11:08:442
206447993832,2cyclictest276510-21kworker/u8:1+events_unbound08:20:212
206446993835,2cyclictest481379-21kworker/u8:0+flush-179:011:45:241
206446993834,3cyclictest206054-21kworker/u8:4+events_unbound07:32:181
206445993836,1cyclictest445329-21kworker/0:2+pm11:29:000
206445993835,2cyclictest3742635-1kworker/0:0H+kblockd07:25:080
206445993833,4cyclictest528433-21kworker/u8:0+flush-179:012:20:310
206445993833,4cyclictest434864-21kworker/u8:1+events_unbound12:00:140
20644599380,36cyclictest247557-21chrome09:20:310
206449993735,1cyclictest3891138-1kworker/3:2H+kblockd08:09:493
206449993735,1cyclictest382875-21kworker/3:0+pm10:12:343
206449993734,2cyclictest3891138-1kworker/3:2H+kblockd12:32:383
206449993734,2cyclictest3891138-1kworker/3:2H+kblockd10:20:183
206449993734,2cyclictest3891138-1kworker/3:2H+kblockd09:08:493
206449993734,2cyclictest3891138-1kworker/3:2H+kblockd07:38:253
206449993733,3cyclictest3891138-1kworker/3:2H+kblockd12:08:083
206449993733,2cyclictest3891138-1kworker/3:2H+kblockd08:35:373
206449993731,5cyclictest206054-21kworker/u8:4+events_unbound07:15:333
206449993729,6cyclictest315781-21/usr/share/muni08:55:033
206447993736,1cyclictest263602-21kworker/2:0+pm08:56:072
206447993735,1cyclictest481483-21kworker/2:2+pm11:46:532
206447993735,1cyclictest263602-21kworker/2:0+pm09:34:102
206447993734,2cyclictest263602-21kworker/2:0+pm08:12:282
206447993730,2cyclictest283753-21kworker/u8:2+events_unbound08:28:272
206446993735,2cyclictest206054-21kworker/u8:4+flush-179:007:17:591
206446993734,2cyclictest476262-21kworker/u8:2+flush-179:011:33:211
206446993734,2cyclictest4093950-1kworker/1:1H+kblockd11:35:041
206446993734,2cyclictest4093950-1kworker/1:1H+kblockd10:40:021
206446993733,3cyclictest450163-21kworker/u8:2+events_unbound11:10:091
206446993733,3cyclictest413515-21kworker/u8:4+events_unbound10:37:281
206445993734,2cyclictest3742635-1kworker/0:0H+kblockd10:54:480
206445993734,2cyclictest3742635-1kworker/0:0H+kblockd08:11:330
206445993734,2cyclictest340801-21kworker/0:1+pm10:09:520
206445993734,2cyclictest314881-21kworker/u8:1+events_unbound09:05:130
206445993733,3cyclictest336070-21kworker/u8:2+flush-179:010:15:070
206445993733,3cyclictest248473-21kworker/u8:0+flush-179:008:06:570
206445993733,2cyclictest3742635-1kworker/0:0H+kblockd11:39:140
206445993733,2cyclictest3742635-1kworker/0:0H+kblockd08:20:040
206445993732,4cyclictest304387-21kworker/u8:2+events_unbound08:50:320
206445993732,4cyclictest232856-21latency_hist07:35:010
206445993721,15cyclictest205934-21kworker/u8:3+events_unbound07:21:310
20644599370,35cyclictest247563-13Compositor07:35:130
206449993634,2cyclictest3891138-1kworker/3:2H+kblockd12:01:063
206449993634,1cyclictest3891138-1kworker/3:2H+kblockd11:03:223
206449993634,1cyclictest3891138-1kworker/3:2H+kblockd09:39:363
206449993634,1cyclictest3891138-1kworker/3:2H+kblockd09:39:363
206449993634,1cyclictest3891138-1kworker/3:2H+kblockd08:31:043
206449993634,1cyclictest3891138-1kworker/3:2H+kblockd07:12:013
206449993633,2cyclictest3891138-1kworker/3:2H+kblockd10:03:063
206449993633,2cyclictest3891138-1kworker/3:2H+kblockd07:56:493
206449993633,2cyclictest3891138-1kworker/3:2H+kblockd07:56:493
206449993632,3cyclictest3891138-1kworker/3:2H+kblockd08:17:073
206449993630,5cyclictest355884-31munin-html09:30:423
206447993633,2cyclictest435001-21kworker/2:0+pm11:15:342
206446993634,1cyclictest491932-21kworker/1:3+pm12:20:231
206446993634,1cyclictest4093950-1kworker/1:1H+kblockd07:50:351
206446993634,1cyclictest107350-21ntpd09:47:341
206446993633,2cyclictest196092-21kworker/u8:1+flush-179:007:55:201
206446993633,2cyclictest196092-21kworker/u8:1+flush-179:007:55:201
206446993632,3cyclictest294178-21kworker/u8:3+events_unbound08:42:281
206446993632,3cyclictest196092-21kworker/u8:1+events_unbound07:40:081
206446993632,3cyclictest196092-21kworker/u8:1+events_unbound07:40:081
206446993632,2cyclictest258830-21kworker/1:0+pm08:19:491
206445993633,2cyclictest398272-21kworker/u8:3+flush-179:010:40:110
206445993633,2cyclictest3742635-1kworker/0:0H+kblockd10:21:200
206445993632,3cyclictest413515-21kworker/u8:4+flush-179:011:11:560
206449993533,1cyclictest3891138-1kworker/3:2H+kblockd10:19:393
206449993533,1cyclictest3891138-1kworker/3:2H+kblockd09:17:363
206449993533,1cyclictest3891138-1kworker/3:2H+kblockd08:23:353
206449993533,1cyclictest325964-21kworker/3:2+pm09:42:443
206449993532,2cyclictest3891138-1kworker/3:2H+kblockd11:43:533
206449993532,2cyclictest3891138-1kworker/3:2H+kblockd11:27:373
206449993532,2cyclictest3891138-1kworker/3:2H+kblockd07:28:203
206449993531,3cyclictest3891138-1kworker/3:2H+kblockd12:26:363
206449993531,2cyclictest248473-21kworker/u8:0+flush-179:009:10:323
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