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2025-12-06 - 22:49
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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 rackbslot1.osadl.org (updated Sat Dec 06, 2025 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3471952213189,14sleep20-21swapper/207:08:212
3472922208179,19sleep30-21swapper/307:09:383
3471042201167,24sleep00-21swapper/007:07:100
3465922188166,13sleep10-21swapper/107:05:351
347501991060,105cyclictest509989-21sed09:45:021
347506997971,5cyclictest654020-21/usr/share/muni12:05:102
347506997670,4cyclictest509915-21chrome09:45:022
34750899731,71cyclictest410598-21kworker/u8:0+efi_rts_wq09:08:573
347506996963,4cyclictest545494-21kworker/u8:3+flush-179:011:05:372
347506996461,2cyclictest545494-21kworker/u8:3+flush-179:010:30:302
34750699597,51cyclictest410598-21kworker/u8:0+efi_rts_wq09:08:582
347506995954,3cyclictest482938-21kworker/u8:3+flush-179:009:25:092
347506995450,3cyclictest613434-21kworker/u8:2+flush-179:011:25:312
5972592520,1chrt597253-21snmp_wanpowerct11:10:033
347508995248,3cyclictest633088-21ThreadPoolForeg11:45:133
347506995245,6cyclictest375942-21apt-get07:35:162
347501995248,3cyclictest571566-21ThreadPoolForeg10:45:161
347501995246,4cyclictest622798-21/usr/share/muni11:35:101
347508995147,3cyclictest331797-21kworker/u8:1+flush-179:007:15:083
347508995146,4cyclictest3125724-21ThreadPoolForeg11:50:103
347506995145,4cyclictest380050-21cp07:40:002
347508995045,4cyclictest247561-21ThreadPoolForeg10:10:293
347506995044,4cyclictest540609-21kworker/u8:1+flush-179:010:20:172
347506994935,10cyclictest596755-21kworker/2:2+pm11:12:082
347501994945,3cyclictest540609-21kworker/u8:1+flush-179:010:35:131
347500994945,3cyclictest612615-21/usr/share/muni11:25:240
347506994840,6cyclictest442539-21/usr/share/muni08:40:142
347506994838,6cyclictest596755-21kworker/2:2+pm12:28:452
347506994837,10cyclictest3125725-21ThreadPoolForeg11:44:252
347506994810,2cyclictest3125629-21e21169fc69a4c6709:15:322
347508994743,3cyclictest601946-21kworker/u8:4+flush-179:011:40:173
347506994735,7cyclictest550821-21kworker/2:2+pm10:45:302
347506994734,2cyclictest169934-1kworker/2:2H+kblockd09:41:502
347506994733,10cyclictest596755-21kworker/2:2+pm12:18:132
347506994730,9cyclictest3125708-13Chrome_ChildIOT11:20:072
34750099475,42cyclictest410598-21kworker/u8:0+efi_rts_wq09:08:560
347506994638,6cyclictest684777-21/usr/share/muni12:35:102
347501994642,3cyclictest514787-21kworker/u8:4+flush-179:010:00:381
347500994642,3cyclictest498805-31munin-graph09:31:580
347508994541,3cyclictest385343-21ThreadPoolForeg07:45:133
347508994541,3cyclictest310505-21kworker/u8:3+flush-179:007:35:373
347506994542,2cyclictest596755-21kworker/2:2+pm12:00:022
347506994536,8cyclictest247562-13Chrome_ChildIOT09:10:112
347501994537,7cyclictest3125727-21ThreadPoolForeg11:13:241
347500994541,3cyclictest341873-21kworker/u8:6+flush-179:007:45:120
34750099450,44cyclictest4105317-21apache209:45:190
347508994441,2cyclictest637821-21kworker/u8:0+flush-179:012:15:263
347506994440,3cyclictest514787-21kworker/u8:4+flush-179:010:00:052
347506994436,7cyclictest478034-21kworker/2:1+pm10:15:592
347506994432,11cyclictest3125725-21ThreadPoolForeg08:51:222
347501994440,3cyclictest601946-21kworker/u8:4+flush-179:011:45:131
347501994440,3cyclictest341873-21kworker/u8:6+flush-179:007:29:101
347500994437,6cyclictest3125725-21ThreadPoolForeg08:40:040
347508994336,6cyclictest247561-21ThreadPoolForeg10:40:393
347506994340,2cyclictest530165-21kworker/u8:2+flush-179:010:12:292
347506994337,4cyclictest638572-21/usr/share/muni11:50:102
347501994339,3cyclictest530165-21kworker/u8:2+flush-179:011:00:351
347501994339,3cyclictest341873-21kworker/u8:6+flush-179:007:30:181
347501994338,4cyclictest452971-21/usr/share/muni08:50:021
347501994338,3cyclictest278086-21kworker/u8:2+flush-179:007:55:091
347501994329,13cyclictest545494-21kworker/u8:3+flush-179:010:30:211
347501994328,13cyclictest410598-21kworker/u8:0+flush-179:009:05:281
347500994339,3cyclictest410834-21gpgv08:10:000
347508994237,4cyclictest457946-21/usr/share/muni08:55:153
347508994237,4cyclictest395723-21/usr/share/muni07:55:043
347506994237,4cyclictest478034-21kworker/2:1+pm09:35:352
347506994236,5cyclictest478034-21kworker/2:1+pm09:54:252
34750699422,16cyclictest3125728-13Compositor08:00:172
347501994239,2cyclictest395138-21kworker/u8:0+flush-179:008:00:281
347501994238,3cyclictest601946-21kworker/u8:4+flush-179:011:50:591
347501994238,3cyclictest310505-21kworker/u8:3+flush-179:007:35:381
347501994235,5cyclictest3125725-21ThreadPoolForeg07:20:401
347501994235,5cyclictest3125725-21ThreadPoolForeg07:20:401
347500994239,2cyclictest472760-21kworker/u8:2+flush-179:009:55:180
347500994237,4cyclictest352752-21/usr/share/muni07:15:170
34750899411,4cyclictest247557-21chrome07:12:243
347506994138,2cyclictest596755-21kworker/2:2+pm11:58:232
347506994138,2cyclictest316213-21kworker/2:0+pm07:10:282
347506994138,1cyclictest596755-21kworker/2:2+pm12:01:522
347506994135,5cyclictest596755-21kworker/2:2+pm11:46:152
347506994135,5cyclictest390778-21kworker/2:0+pm08:26:022
347506994135,5cyclictest390778-21kworker/2:0+pm08:26:022
347506994135,4cyclictest659150-21/usr/share/muni12:10:132
347506994135,4cyclictest659150-21/usr/share/muni12:10:132
347506994135,3cyclictest478034-21kworker/2:1+pm09:57:292
347506994127,13cyclictest555836-21kworker/u8:0+flush-179:010:30:002
347506994127,13cyclictest555836-21kworker/u8:0+flush-179:010:30:002
347506994119,21cyclictest3125728-13Compositor11:32:242
347500994139,1cyclictest1260-21snmpd11:30:380
347500994138,3cyclictest545494-21kworker/u8:3+flush-179:010:45:310
347500994137,3cyclictest664502-21kworker/u8:3+flush-179:012:15:240
347500994137,3cyclictest621628-21kworker/u8:1+flush-179:012:20:070
347500994136,4cyclictest3125727-21ThreadPoolForeg11:52:260
347508994037,2cyclictest669262-21kworker/3:1+pm12:29:103
347508994036,3cyclictest540609-21kworker/u8:1+flush-179:010:18:313
347508994036,3cyclictest4105347-21apache211:20:153
347506994038,1cyclictest390778-21kworker/2:0+pm08:13:072
347506994037,2cyclictest550821-21kworker/2:2+pm10:52:242
347506994037,2cyclictest478034-21kworker/2:1+pm10:05:242
347506994036,3cyclictest540609-21kworker/u8:1+flush-179:011:20:002
347506994036,3cyclictest358698-21kworker/2:3+pm07:30:282
347506994036,2cyclictest358698-21kworker/2:3+pm07:26:572
347506994035,3cyclictest550821-21kworker/2:2+pm10:40:052
347506994034,5cyclictest247560-21ThreadPoolForeg08:35:362
347506994032,6cyclictest463236-21/usr/share/muni09:00:172
347506994031,8cyclictest247557-21chrome07:55:062
347506994017,22cyclictest368443-21kworker/u8:4+flush-179:009:20:012
347506994014,25cyclictest3125726-13Chrome_ChildIOT08:07:152
347501994036,3cyclictest3125725-21ThreadPoolForeg08:40:151
347501994025,14cyclictest530165-21kworker/u8:2+flush-179:010:55:171
347500994036,3cyclictest421736-21/usr/share/muni08:20:100
347500994036,3cyclictest421736-21/usr/share/muni08:20:100
347500994036,3cyclictest368443-21kworker/u8:4+flush-179:007:50:380
347500994035,4cyclictest607507-21/usr/share/muni11:20:100
347500994035,4cyclictest586773-21latency_hist11:00:010
347500994035,4cyclictest364263-21/usr/share/muni07:25:190
347500994034,4cyclictest488925-21munin-update09:25:030
3934552390,1chrt393454-21df07:50:233
347508993936,2cyclictest410598-21kworker/u8:0+flush-179:009:10:303
347508993936,2cyclictest185611-1kworker/3:0H+kblockd09:31:023
347508993935,3cyclictest368443-21kworker/u8:4+flush-179:008:25:043
347508993935,3cyclictest368443-21kworker/u8:4+flush-179:008:25:043
347506993936,2cyclictest550821-21kworker/2:2+pm10:39:562
347506993936,2cyclictest478034-21kworker/2:1+pm09:31:412
347506993936,2cyclictest390778-21kworker/2:0+pm08:56:512
347506993936,2cyclictest390778-21kworker/2:0+pm08:16:012
347506993936,2cyclictest352121-21kworker/2:2+pm07:24:092
347506993936,2cyclictest352121-21kworker/2:2+pm07:24:092
347506993935,3cyclictest596755-21kworker/2:2+pm12:30:062
347506993934,3cyclictest358698-21kworker/2:3+pm07:45:022
347506993930,7cyclictest247516-21Chrome_ChildIOT08:49:042
34750699392,36cyclictest0-21swapper/212:20:012
347501993932,2cyclictest247545-13VizCompositorTh11:40:411
347500993936,2cyclictest1260-21snmpd09:50:110
347508993835,2cyclictest571703-21ThreadPoolForeg10:45:063
347508993834,3cyclictest669649-21kworker/u8:4+flush-179:012:35:343
347508993834,3cyclictest419334-21kworker/u8:3+flush-179:008:45:173
347508993834,2cyclictest3125721-21chrome12:23:533
34750899382,35cyclictest3125627-21ChromeDriver00:55:193
347506993836,1cyclictest390778-21kworker/2:0+pm08:33:592
347506993835,2cyclictest390778-21kworker/2:0+pm08:23:052
347506993835,2cyclictest390778-21kworker/2:0+pm08:23:042
347506993835,2cyclictest352121-21kworker/2:2+pm07:15:352
347506993834,2cyclictest358698-21kworker/2:3+pm07:50:032
347501993833,4cyclictest247561-21ThreadPoolForeg10:24:041
347501993831,5cyclictest247560-21ThreadPoolForeg09:01:541
347501993825,12cyclictest3125721-21chrome09:40:041
347500993836,1cyclictest467836-21kworker/0:0+pm09:42:400
347500993835,2cyclictest3125648-13Chrome_IOThread09:10:120
347500993835,2cyclictest278086-21kworker/u8:2+flush-179:007:20:120
347500993835,2cyclictest278086-21kworker/u8:2+flush-179:007:20:120
347500993833,4cyclictest622799-21/usr/share/muni11:35:120
347500993833,4cyclictest540811-21/usr/share/muni10:15:160
347500993833,4cyclictest437412-21/usr/share/muni08:35:180
347500993833,3cyclictest410598-21kworker/u8:0+flush-179:008:50:110
34750099381,36cyclictest3125724-21ThreadPoolForeg11:50:010
347508993734,2cyclictest390421-21kworker/3:1+pm08:08:243
347508993734,2cyclictest368443-21kworker/u8:4+flush-179:009:00:273
347508993734,2cyclictest185611-1kworker/3:0H+kblockd10:33:303
347508993732,4cyclictest247560-21ThreadPoolForeg08:40:443
347506993735,1cyclictest550821-21kworker/2:2+pm10:57:332
34750699371,33cyclictest3125721-21chrome11:01:332
347501993734,2cyclictest368925-1kworker/1:1H+kblockd12:00:021
347501993734,2cyclictest368925-1kworker/1:1H+kblockd11:27:051
347501993734,2cyclictest368925-1kworker/1:1H+kblockd10:53:171
347501993734,2cyclictest368925-1kworker/1:1H+kblockd10:12:411
347501993734,2cyclictest368925-1kworker/1:1H+kblockd09:51:501
347501993734,2cyclictest368925-1kworker/1:1H+kblockd08:38:541
347501993734,2cyclictest368925-1kworker/1:1H+kblockd08:23:301
347501993734,2cyclictest368925-1kworker/1:1H+kblockd08:23:301
347501993734,2cyclictest368925-1kworker/1:1H+kblockd08:05:341
347501993734,2cyclictest368925-1kworker/1:1H+kblockd07:51:061
347501993733,2cyclictest368925-1kworker/1:1H+kblockd09:56:271
347500993734,2cyclictest81975-1kworker/0:0H+kblockd08:30:070
347500993734,2cyclictest81975-1kworker/0:0H+kblockd08:11:420
347500993734,2cyclictest295444-21kworker/0:0+pm07:10:430
347508993634,1cyclictest653468-1kworker/3:2H+kblockd12:04:153
347508993634,1cyclictest185611-1kworker/3:0H+kblockd08:33:213
347508993634,1cyclictest185611-1kworker/3:0H+kblockd08:16:143
347508993634,1cyclictest185611-1kworker/3:0H+kblockd07:30:153
347508993633,2cyclictest369322-21kworker/3:0+pm08:04:093
347508993633,2cyclictest3125630-13chrome10:04:043
347508993633,2cyclictest185611-1kworker/3:0H+kblockd09:58:543
347508993631,4cyclictest586433-31munin-html10:56:193
347506993633,2cyclictest596755-21kworker/2:2+pm11:35:592
347501993634,1cyclictest3903488-1kworker/1:2H+kblockd07:19:091
347501993634,1cyclictest368925-1kworker/1:1H+kblockd11:20:081
347501993634,1cyclictest368925-1kworker/1:1H+kblockd09:33:011
347501993633,2cyclictest368925-1kworker/1:1H+kblockd12:26:371
347501993633,2cyclictest368925-1kworker/1:1H+kblockd10:16:151
347501993633,2cyclictest368925-1kworker/1:1H+kblockd08:12:291
347501993633,2cyclictest368925-1kworker/1:1H+kblockd07:46:071
347501993632,2cyclictest3903488-1kworker/1:2H+kblockd07:12:121
347500993634,1cyclictest385100-21kworker/0:3+pm08:00:150
347500993633,2cyclictest81975-1kworker/0:0H+kblockd12:26:370
347500993633,2cyclictest81975-1kworker/0:0H+kblockd11:01:500
347500993633,2cyclictest81975-1kworker/0:0H+kblockd09:04:150
347500993631,2cyclictest247563-13Compositor07:42:450
347500993629,6cyclictest247515-21ThreadPoolForeg09:21:590
347508993533,2cyclictest185611-1kworker/3:0H+kblockd09:37:093
347508993533,1cyclictest653468-1kworker/3:2H+kblockd12:30:363
347508993533,1cyclictest185611-1kworker/3:0H+kblockd09:15:033
347508993533,1cyclictest185611-1kworker/3:0H+kblockd08:23:153
347508993533,1cyclictest185611-1kworker/3:0H+kblockd08:23:143
347508993532,3cyclictest596593-21kworker/u8:0+flush-179:011:15:193
347508993532,2cyclictest489170-21/usr/share/muni09:25:123
347508993532,2cyclictest185611-1kworker/3:0H+kblockd10:25:543
347508993532,2cyclictest185611-1kworker/3:0H+kblockd10:25:543
347508993532,2cyclictest185611-1kworker/3:0H+kblockd10:22:023
347508993532,2cyclictest185611-1kworker/3:0H+kblockd09:50:013
347508993532,2cyclictest185611-1kworker/3:0H+kblockd08:35:243
347508993531,2cyclictest185611-1kworker/3:0H+kblockd11:26:153
347501993533,1cyclictest368925-1kworker/1:1H+kblockd12:32:181
347501993533,1cyclictest368925-1kworker/1:1H+kblockd12:18:251
347501993533,1cyclictest368925-1kworker/1:1H+kblockd08:25:381
347501993533,1cyclictest368925-1kworker/1:1H+kblockd08:25:381
347501993533,1cyclictest368925-1kworker/1:1H+kblockd08:19:021
347501993532,2cyclictest368925-1kworker/1:1H+kblockd11:59:501
347501993532,2cyclictest368925-1kworker/1:1H+kblockd07:43:241
347501993532,2cyclictest3125721-21chrome10:40:131
347501993531,3cyclictest368925-1kworker/1:1H+kblockd10:07:031
347500993534,1cyclictest81975-1kworker/0:0H+kblockd10:54:530
347500993534,1cyclictest81975-1kworker/0:0H+kblockd10:27:370
347500993534,1cyclictest81975-1kworker/0:0H+kblockd10:27:370
347500993533,1cyclictest81975-1kworker/0:0H+kblockd12:07:220
347500993533,1cyclictest81975-1kworker/0:0H+kblockd10:34:150
347500993533,1cyclictest81975-1kworker/0:0H+kblockd09:18:340
347500993533,1cyclictest81975-1kworker/0:0H+kblockd08:17:360
347500993533,1cyclictest81975-1kworker/0:0H+kblockd07:34:200
347500993533,1cyclictest540605-21kworker/0:3+pm10:39:450
347500993533,1cyclictest1260-21snmpd11:16:530
347500993532,2cyclictest81975-1kworker/0:0H+kblockd12:00:060
347500993532,2cyclictest81975-1kworker/0:0H+kblockd11:08:550
347500993532,2cyclictest81975-1kworker/0:0H+kblockd10:14:150
347500993532,2cyclictest81975-1kworker/0:0H+kblockd07:56:500
347500993532,2cyclictest247563-13Compositor10:24:030
347500993531,3cyclictest3125724-21ThreadPoolForeg07:35:370
347500993529,3cyclictest493923-21kworker/u8:1+flush-179:009:35:060
347508993433,1cyclictest185611-1kworker/3:0H+kblockd07:29:383
347508993432,1cyclictest369322-21kworker/3:0+pm07:42:423
347508993430,3cyclictest368443-21kworker/u8:4+flush-179:008:50:063
347508993429,4cyclictest654006-21/usr/share/muni12:05:133
347501993432,1cyclictest368925-1kworker/1:1H+kblockd08:56:081
347501993432,1cyclictest368925-1kworker/1:1H+kblockd08:47:061
347501993431,2cyclictest368925-1kworker/1:1H+kblockd09:26:141
347501993431,1cyclictest368925-1kworker/1:1H+kblockd10:26:361
347501993431,1cyclictest368925-1kworker/1:1H+kblockd10:26:361
347501993430,3cyclictest410598-21kworker/u8:0+flush-179:008:30:181
347501993430,2cyclictest1260-21snmpd09:17:341
347500993433,1cyclictest81975-1kworker/0:0H+kblockd12:32:260
347500993432,1cyclictest81975-1kworker/0:0H+kblockd11:14:290
347500993432,1cyclictest81975-1kworker/0:0H+kblockd08:47:550
347500993430,3cyclictest431682-21munin-update08:30:000
347500993430,3cyclictest431682-21munin-update08:30:000
347500993429,4cyclictest643602-21munin-update11:55:040
347500993429,4cyclictest643602-21munin-update11:55:040
347508993331,1cyclictest185611-1kworker/3:0H+kblockd11:35:043
347508993330,2cyclictest540609-21kworker/u8:1+flush-179:010:50:343
347508993330,2cyclictest3125627-21ChromeDriver00:55:193
347508993330,2cyclictest3125627-21ChromeDriver00:55:193
347508993329,3cyclictest510018-21ThreadPoolForeg09:45:033
347508993329,3cyclictest247516-21Chrome_ChildIOT11:00:543
34750199336,25cyclictest3125728-13Compositor11:15:191
347501993330,2cyclictest651652-21/usr/sbin/munin12:00:261
347501993330,2cyclictest3125728-13Compositor09:10:191
347501993330,2cyclictest3125721-21chrome09:20:271
347501993329,3cyclictest648363-21kworker/u8:2+flush-179:012:05:241
347501993329,2cyclictest405733-21kworker/1:3+pm09:39:051
347501993328,3cyclictest545494-21kworker/u8:3+flush-179:011:05:151
347500993332,1cyclictest81975-1kworker/0:0H+kblockd12:13:160
347500993332,1cyclictest81975-1kworker/0:0H+kblockd12:13:160
347500993331,1cyclictest81975-1kworker/0:0H+kblockd11:40:560
347500993331,1cyclictest81975-1kworker/0:0H+kblockd10:07:490
347500993329,3cyclictest530165-21kworker/u8:2+flush-179:010:43:350
347500993329,3cyclictest514787-21kworker/u8:4+flush-179:010:00:160
347508993229,2cyclictest472760-21kworker/u8:2+flush-179:009:40:213
347508993229,2cyclictest368443-21kworker/u8:4+flush-179:009:20:153
347508993229,2cyclictest3125627-21ChromeDriver00:55:193
347508993229,2cyclictest3125627-21ChromeDriver00:55:193
347508993229,2cyclictest278086-21kworker/u8:2+events_unbound07:20:233
347508993229,2cyclictest278086-21kworker/u8:2+events_unbound07:20:233
347508993218,13cyclictest247563-13Compositor11:09:153
347501993129,1cyclictest107350-21ntpd12:13:531
347501993129,1cyclictest107350-21ntpd12:13:531
347500993128,2cyclictest3125648-13Chrome_IOThread08:56:000
347508993028,1cyclictest1260-21snmpd08:10:233
347508993027,2cyclictest247544-13Chrome_ChildIOT10:36:143
347501993028,1cyclictest1260-21snmpd12:24:191
347501993027,2cyclictest368925-1kworker/1:1H+kblockd11:32:541
347501993027,2cyclictest3125724-21ThreadPoolForeg12:37:351
347500993029,1cyclictest81975-1kworker/0:0H+kblockd12:35:210
347508992927,1cyclictest105470-21isc-net-000010:05:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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