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2025-11-12 - 02:55
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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 Tue Nov 11, 2025 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10154092219191,18sleep10-21swapper/107:09:421
10153402202174,18sleep30-21swapper/307:08:483
10151272201179,13sleep00-21swapper/007:06:080
10153292199176,13sleep20-21swapper/207:08:392
129187521450,1sleep11291874-21ntpq11:35:121
1015647998583,1cyclictest1114809-13chrome08:45:071
1015647997156,3cyclictest1053113-21ThreadPoolForeg07:45:011
1015650997064,4cyclictest1176651-21latency_hist09:45:012
101564799684,63cyclictest1026285-21kworker/u8:4+efi_rts_wq07:17:001
1015643996561,3cyclictest1315885-21kworker/u8:2+flush-179:012:05:190
1015647996156,4cyclictest1269728-21/usr/share/muni11:15:011
1015643996157,3cyclictest1192449-21/usr/share/muni10:00:100
101565099583,54cyclictest1020336-21kworker/u8:3+efi_rts_wq07:16:582
1015647995754,2cyclictest1036650-21kworker/u8:0+events_unbound08:00:071
1015647995451,2cyclictest1290121-21kworker/u8:5+events_unbound11:45:351
1015647995450,2cyclictest1238574-21snmp_wanpowerct10:45:011
1015647995448,4cyclictest1176952-21chrome09:45:011
1015647995448,4cyclictest1176952-21chrome09:45:011
1015650995337,14cyclictest1053049-21chrome07:45:012
1015647995349,3cyclictest1135401-21kworker/u8:2+events_unbound09:10:191
1015647995249,2cyclictest1305593-21kworker/u8:0+events_unbound11:55:161
1015643995247,4cyclictest1145249-21kworker/u8:4+flush-179:009:15:370
1015650995046,3cyclictest1144553-21kworker/u8:1+flush-179:009:30:062
1015647995046,3cyclictest1310786-21kworker/u8:1+events_unbound12:17:021
1015647995046,3cyclictest1198991-21kworker/u8:1+events_unbound10:10:091
1015647995046,3cyclictest1036650-21kworker/u8:0+events_unbound07:35:321
1015647994946,2cyclictest1232959-21kworker/u8:0+events_unbound11:10:161
1015647994946,2cyclictest1080087-21kworker/u8:1+events_unbound08:30:291
1015653994841,5cyclictest1182066-21/usr/share/muni09:50:133
1015647994846,2cyclictest1211640-21kworker/u8:4+flush-179:010:17:011
1015647994841,5cyclictest1134616-21munin-limits09:00:351
1015650994743,3cyclictest1098977-21munin-update08:30:312
1015647994744,2cyclictest1103830-21kworker/u8:3+events_unbound08:54:461
1015650994635,10cyclictest1083484-21kworker/2:0+pm09:16:022
1015643994639,5cyclictest1181998-21munin-update09:50:040
1015653994539,4cyclictest247515-21ThreadPoolForeg10:55:143
1015650994540,3cyclictest1248898-21/usr/share/muni10:55:062
1015647994542,2cyclictest1176586-21kworker/u8:2+events_unbound09:52:571
1015647994541,3cyclictest1036650-21kworker/u8:0+flush-179:009:05:091
1015653994433,9cyclictest1017301-21ntpq07:10:163
1015650994442,1cyclictest1253388-21kworker/2:2+pm11:09:582
1015650994428,15cyclictest1020336-21kworker/u8:3+flush-179:007:54:002
1015647994441,2cyclictest1258492-21kworker/u8:4+events_unbound11:05:191
1015647994440,3cyclictest1269078-21kworker/u8:3+events_unbound12:25:361
1015647994440,3cyclictest1227814-21kworker/u8:2+flush-179:011:24:181
1015647994440,3cyclictest1211640-21kworker/u8:4+flush-179:010:30:231
1015647994440,3cyclictest1144553-21kworker/u8:1+events_unbound09:20:261
1015647994439,2cyclictest1150382-21kworker/u8:0+events_unbound09:35:251
1015643994440,3cyclictest1069826-21apt-get08:00:150
1015643994430,13cyclictest736584-1kworker/0:1H+kblockd08:47:110
1015653994340,3cyclictest1310786-21kworker/u8:1+flush-179:012:20:083
1015647994341,2cyclictest1222521-21kworker/u8:1+flush-179:010:41:201
1015647994339,3cyclictest1258492-21kworker/u8:4+events_unbound11:04:531
1015643994337,4cyclictest247560-21ThreadPoolForeg12:25:230
1015643994332,9cyclictest736584-1kworker/0:1H+kblockd11:31:380
1015653994237,4cyclictest1192189-21munin-update10:00:323
1015650994238,3cyclictest1026285-21kworker/u8:4+flush-179:008:00:192
1015647994239,2cyclictest1036650-21kworker/u8:0+flush-179:007:40:091
1015647994238,3cyclictest1114366-21kworker/u8:1+events_unbound08:57:061
1015647994238,3cyclictest1080087-21kworker/u8:1+events_unbound08:22:201
1015647994238,3cyclictest1009604-21kworker/u8:0+flush-179:007:10:171
1015643994235,5cyclictest1305927-21munin-update11:50:050
1015650994138,2cyclictest1155065-21kworker/u8:3+flush-179:009:45:082
1015650994138,2cyclictest1155065-21kworker/u8:3+flush-179:009:45:082
1015650994135,4cyclictest247573-21ThreadPoolForeg10:10:102
1015647994138,2cyclictest1315885-21kworker/u8:2+events_unbound12:00:291
1015647994138,2cyclictest1026285-21kworker/u8:4+flush-179:008:39:191
1015647994138,2cyclictest1026285-21kworker/u8:4+flush-179:008:39:181
1015643994138,2cyclictest1356875-21kworker/u8:2+flush-179:012:39:330
1015643994135,4cyclictest1094104-21/usr/share/muni08:25:050
101564399411,38cyclictest247560-21ThreadPoolForeg11:35:340
1015653994037,2cyclictest642908-1kworker/3:2H+kblockd07:57:443
1015653994034,5cyclictest1053061-21/usr/share/muni07:45:233
1015653994033,5cyclictest1202645-21/usr/share/muni10:10:043
1015650994038,1cyclictest1292189-21kworker/2:0+pm11:53:272
1015650994038,1cyclictest1155675-21kworker/2:2+pm09:25:192
1015650994036,2cyclictest1217046-31munin-html10:20:332
1015650994034,5cyclictest1243956-21/usr/share/muni10:50:032
101565099401,14cyclictest1315796-31munin-html11:55:422
1015647994037,2cyclictest1290121-21kworker/u8:5+events_unbound11:33:311
1015647994037,2cyclictest1036650-21kworker/u8:0+events_unbound08:40:271
1015647994037,2cyclictest1020336-21kworker/u8:3+events_unbound08:10:081
1015647994036,3cyclictest1211640-21kworker/u8:4+flush-179:010:35:201
1015647994036,3cyclictest1036650-21kworker/u8:0+events_unbound08:17:561
1015647994036,3cyclictest1015129-21kworker/u8:1+events_unbound07:34:331
1015647994035,3cyclictest1233509-1kworker/1:0H+kblockd11:50:041
1015647994035,3cyclictest1144553-21kworker/u8:1+events_unbound09:29:231
101564799400,39cyclictest247545-13VizCompositorTh09:40:041
1015643994037,2cyclictest1155119-21awk09:20:320
1015643994036,3cyclictest1026285-21kworker/u8:4+flush-179:008:15:360
1015643994035,3cyclictest1315366-31munin-html11:55:330
1015643994035,3cyclictest1155065-21kworker/u8:3+flush-179:009:25:190
1015643994034,4cyclictest247560-21ThreadPoolForeg09:02:140
1015643994031,8cyclictest1031491-31munin-html07:20:380
1015653993936,2cyclictest1321337-21kworker/3:2+pm12:37:093
1015653993936,2cyclictest1178279-1kworker/3:0H+kblockd10:22:593
1015653993935,3cyclictest1232959-21kworker/u8:0+flush-179:011:20:293
1015653993933,5cyclictest1258514-31munin-graph11:01:023
101565399390,37cyclictest247450-13chrome11:28:133
1015650993937,1cyclictest908036-21kworker/2:2+pm07:30:062
1015650993937,1cyclictest1292189-21kworker/2:0+pm12:09:242
1015650993937,1cyclictest1155675-21kworker/2:2+pm09:36:442
1015650993936,2cyclictest1083484-21kworker/2:0+pm08:25:062
1015650993936,2cyclictest1036650-21kworker/u8:0+events_unbound07:30:012
1015650993935,3cyclictest1083484-21kworker/2:0+pm08:35:592
1015650993935,3cyclictest1083484-21kworker/2:0+pm08:35:592
1015650993934,4cyclictest1126697-21diskstats08:55:152
1015647993936,3cyclictest1279726-21kworker/u8:1+flush-179:011:25:301
1015647993936,2cyclictest1181608-21kworker/u8:5+flush-179:010:00:151
1015643993934,3cyclictest736584-1kworker/0:1H+kblockd10:57:100
1015643993934,3cyclictest1296001-21kworker/u8:1+flush-179:011:40:190
1015643993930,8cyclictest736584-1kworker/0:1H+kblockd09:55:170
1015643993926,4cyclictest1176989-21Chrome_ChildIOT09:45:140
1015643993926,4cyclictest1176989-21Chrome_ChildIOT09:45:140
1015653993836,1cyclictest1088850-21kworker/3:1+pm10:08:563
1015653993834,3cyclictest1020336-21kworker/u8:3+flush-179:008:06:223
1015653993834,2cyclictest1178279-1kworker/3:0H+kblockd12:09:033
1015653993833,3cyclictest1036650-21kworker/u8:0+events_unbound09:05:273
1015650993837,1cyclictest1292189-21kworker/2:0+pm12:17:022
1015650993837,1cyclictest1253388-21kworker/2:2+pm11:10:312
1015650993836,1cyclictest908036-21kworker/2:2+pm08:10:082
1015650993836,1cyclictest908036-21kworker/2:2+pm07:57:342
1015650993836,1cyclictest908036-21kworker/2:2+pm07:11:292
1015650993836,1cyclictest1292189-21kworker/2:0+pm12:28:152
1015650993836,1cyclictest1253388-21kworker/2:2+pm11:18:332
1015650993836,1cyclictest1186318-21kworker/2:0+pm10:40:012
1015650993836,1cyclictest1186318-21kworker/2:0+pm10:16:212
1015650993836,1cyclictest1083484-21kworker/2:0+pm09:22:492
1015650993835,2cyclictest1292189-21kworker/2:0+pm12:30:212
1015650993835,2cyclictest1292189-21kworker/2:0+pm12:10:042
1015650993835,2cyclictest1253388-21kworker/2:2+pm11:21:242
1015650993835,2cyclictest1186318-21kworker/2:0+pm10:35:242
1015650993835,2cyclictest1083484-21kworker/2:0+pm09:02:502
1015650993835,2cyclictest1083484-21kworker/2:0+pm08:40:032
1015650993835,2cyclictest1083484-21kworker/2:0+pm08:18:052
1015650993835,2cyclictest1042398-21kworker/2:0+pm07:35:552
1015650993834,3cyclictest1238520-21chrome10:45:012
1015650993833,4cyclictest1254019-21/usr/share/muni11:00:152
101565099381,3cyclictest247557-21chrome11:46:012
101565099381,15cyclictest247557-21chrome11:25:372
1015647993837,0cyclictest107350-21ntpd12:08:111
1015647993835,2cyclictest1222521-21kworker/u8:1+flush-179:010:55:251
1015647993834,3cyclictest1026285-21kworker/u8:4+flush-179:008:07:041
1015647993833,4cyclictest1211640-21kworker/u8:4+events_unbound10:23:481
1015647993827,11cyclictest1036650-21kworker/u8:0+flush-179:007:57:091
1015643993835,2cyclictest736584-1kworker/0:1H+kblockd08:51:430
1015643993833,3cyclictest736584-1kworker/0:1H+kblockd10:31:580
1015653993735,1cyclictest1088850-21kworker/3:1+pm10:29:043
1015653993735,1cyclictest1088850-21kworker/3:1+pm09:18:433
1015653993734,2cyclictest642908-1kworker/3:2H+kblockd07:53:193
1015653993734,2cyclictest1178279-1kworker/3:0H+kblockd11:38:483
1015653993734,2cyclictest1178279-1kworker/3:0H+kblockd10:41:433
1015653993734,2cyclictest1178279-1kworker/3:0H+kblockd10:31:443
1015653993734,2cyclictest1015498-21kworker/3:0+pm08:17:443
1015653993734,1cyclictest1178279-1kworker/3:0H+kblockd11:17:233
1015653993733,3cyclictest1336664-21kworker/u8:0+flush-179:012:30:173
1015653993733,3cyclictest1020336-21kworker/u8:3+flush-179:007:15:123
1015653993732,3cyclictest1150382-21kworker/u8:0+flush-179:009:45:353
1015653993732,3cyclictest1150382-21kworker/u8:0+flush-179:009:45:353
1015653993731,4cyclictest1094108-21/usr/share/muni08:25:093
1015650993736,1cyclictest1083484-21kworker/2:0+pm08:24:592
1015650993735,1cyclictest908036-21kworker/2:2+pm08:09:302
1015650993735,1cyclictest908036-21kworker/2:2+pm07:40:342
1015650993735,1cyclictest1292189-21kworker/2:0+pm12:35:092
1015650993735,1cyclictest1186318-21kworker/2:0+pm10:10:002
1015650993735,1cyclictest1083484-21kworker/2:0+pm08:51:502
1015650993735,1cyclictest1083484-21kworker/2:0+pm08:45:252
1015650993734,2cyclictest1253388-21kworker/2:2+pm11:33:132
1015650993734,2cyclictest1186318-21kworker/2:0+pm10:25:192
1015650993734,2cyclictest1083484-21kworker/2:0+pm09:11:162
1015650993733,2cyclictest247557-21chrome09:51:062
1015647993734,3cyclictest1198991-21kworker/u8:1+events_unbound10:05:251
1015647993734,2cyclictest1233509-1kworker/1:0H+kblockd10:52:081
1015647993733,3cyclictest1296001-21kworker/u8:1+events_unbound11:41:351
1015647993733,3cyclictest1181608-21kworker/u8:5+flush-179:010:00:001
1015647993733,3cyclictest1036650-21kworker/u8:0+events_unbound07:51:211
1015647993731,4cyclictest1336996-21/usr/share/muni12:20:041
1015643993735,1cyclictest1260-21snmpd11:12:200
1015643993734,2cyclictest736584-1kworker/0:1H+kblockd09:35:190
1015643993734,2cyclictest736584-1kworker/0:1H+kblockd07:28:350
1015643993734,2cyclictest1217190-21kworker/0:1+pm10:48:070
1015643993734,2cyclictest1217190-21kworker/0:1+pm10:23:090
1015643993733,3cyclictest1207746-21/usr/share/muni10:15:130
1015643993733,2cyclictest736584-1kworker/0:1H+kblockd08:10:010
1015643993731,4cyclictest1280018-21/usr/share/muni11:25:150
1015643993730,1cyclictest1260-21snmpd11:19:320
1015643993726,2cyclictest247450-13chrome09:33:230
1015653993634,1cyclictest642908-1kworker/3:2H+kblockd09:01:113
1015653993633,2cyclictest642908-1kworker/3:2H+kblockd09:32:583
1015653993633,2cyclictest642908-1kworker/3:2H+kblockd09:25:043
1015653993633,2cyclictest642908-1kworker/3:2H+kblockd08:32:043
1015653993632,3cyclictest1268764-31munin-html11:10:353
1015653993632,3cyclictest1209484-21apt-get10:15:173
1015653993631,4cyclictest1295741-21/usr/share/muni11:40:133
1015650993635,1cyclictest1292189-21kworker/2:0+pm11:40:172
1015650993634,1cyclictest908036-21kworker/2:2+pm07:20:162
1015650993634,1cyclictest1083484-21kworker/2:0+pm09:05:052
1015650993633,2cyclictest1186318-21kworker/2:0+pm09:56:452
101565099361,4cyclictest247557-21chrome11:35:442
1015647993632,3cyclictest1346601-21kworker/u8:4+events_unbound12:34:561
1015647993632,3cyclictest1233509-1kworker/1:0H+kblockd12:35:321
1015647993631,4cyclictest1145249-21kworker/u8:4+events_unbound09:17:131
1015647993630,5cyclictest1028381-21ntpq07:20:151
1015647993628,6cyclictest582847-21apache207:25:181
1015643993634,1cyclictest736584-1kworker/0:1H+kblockd08:24:280
1015643993634,1cyclictest1010160-21kworker/0:0+pm07:14:190
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd12:04:290
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd10:12:290
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd09:06:200
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd08:57:290
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd08:32:240
1015643993633,2cyclictest736584-1kworker/0:1H+kblockd07:46:370
1015643993632,2cyclictest736584-1kworker/0:1H+kblockd07:36:490
1015643993629,5cyclictest1351685-31munin-html12:30:380
1015653993534,1cyclictest642908-1kworker/3:2H+kblockd09:43:223
1015653993534,1cyclictest1311190-21kworker/3:1+pm11:59:373
1015653993533,1cyclictest1178279-1kworker/3:0H+kblockd12:00:513
1015653993532,2cyclictest642908-1kworker/3:2H+kblockd08:13:193
1015653993532,2cyclictest642908-1kworker/3:2H+kblockd07:24:493
1015653993530,4cyclictest1229414-21apt-get10:35:113
1015653993525,9cyclictest642908-1kworker/3:2H+kblockd07:29:243
101565399350,3cyclictest247418-21python308:45:173
1015650993533,1cyclictest1292189-21kworker/2:0+pm12:21:022
1015650993533,1cyclictest1186318-21kworker/2:0+pm10:00:172
1015650993533,1cyclictest1179264-1kworker/2:2H+kblockd12:00:492
1015647993531,3cyclictest76405-21systemd-journal12:11:541
1015647993531,3cyclictest1144553-21kworker/u8:1+events_unbound09:32:101
1015643993533,1cyclictest736584-1kworker/0:1H+kblockd12:15:060
1015643993533,1cyclictest736584-1kworker/0:1H+kblockd10:29:040
1015643993532,2cyclictest736584-1kworker/0:1H+kblockd10:36:360
1015643993532,2cyclictest736584-1kworker/0:1H+kblockd07:44:590
1015643993531,3cyclictest736584-1kworker/0:1H+kblockd08:40:150
1015643993530,3cyclictest736584-1kworker/0:1H+kblockd12:23:580
1015643993527,6cyclictest1145153-31munin-html09:10:440
1015653993432,1cyclictest1178279-1kworker/3:0H+kblockd11:50:373
1015653993431,2cyclictest642908-1kworker/3:2H+kblockd08:40:153
1015653993431,2cyclictest642908-1kworker/3:2H+kblockd08:36:143
1015653993431,2cyclictest642908-1kworker/3:2H+kblockd08:36:143
1015653993431,2cyclictest642908-1kworker/3:2H+kblockd07:39:103
1015653993431,2cyclictest1260-21snmpd08:24:013
1015650993429,4cyclictest1227382-31munin-html10:30:472
1015647993430,3cyclictest1207201-21kworker/u8:3+flush-179:010:27:451
1015643993430,3cyclictest1062532-21munin-limits07:50:350
1015643993430,2cyclictest736584-1kworker/0:1H+kblockd10:54:130
1015643993428,4cyclictest1237575-31munin-html10:40:350
1015643993422,1cyclictest1260-21snmpd09:40:210
1015653993331,1cyclictest642908-1kworker/3:2H+kblockd08:52:443
1015653993331,1cyclictest1178279-1kworker/3:0H+kblockd09:58:383
1015653993330,3cyclictest1269078-21kworker/u8:3+events_unbound12:10:283
1015653993330,2cyclictest1260-21snmpd09:39:063
1015653993328,4cyclictest1232959-21kworker/u8:0+flush-179:010:50:013
1015643993331,1cyclictest736584-1kworker/0:1H+kblockd12:11:550
1015643993330,2cyclictest736584-1kworker/0:1H+kblockd11:08:290
1015643993330,2cyclictest1260-21snmpd11:04:590
1015643993330,2cyclictest1260-21snmpd10:05:420
1015643993329,2cyclictest736584-1kworker/0:1H+kblockd07:17:190
1015653993230,1cyclictest1088850-21kworker/3:1+pm09:22:593
1015653993227,3cyclictest1336722-21latency_hist12:20:003
1015647993230,1cyclictest983544-1kworker/1:2H+kblockd08:26:221
1015643993229,2cyclictest736584-1kworker/0:1H+kblockd08:35:580
1015643993229,2cyclictest736584-1kworker/0:1H+kblockd08:35:580
1015643993229,2cyclictest1260-21snmpd07:30:300
1015643993228,3cyclictest736584-1kworker/0:1H+kblockd11:48:240
1015653993129,1cyclictest1260-21snmpd09:13:563
1015653993129,1cyclictest1260-21snmpd08:56:173
1015653993129,1cyclictest1260-21snmpd08:04:553
1015653993129,1cyclictest1260-21snmpd07:31:093
1015653993128,2cyclictest642908-1kworker/3:2H+kblockd07:40:013
1015653993128,2cyclictest107350-21ntpd11:08:113
1015653993026,2cyclictest247557-21chrome10:53:293
1015643993027,2cyclictest736584-1kworker/0:1H+kblockd11:20:030
1015643993026,3cyclictest1026285-21kworker/u8:4+events_unbound08:05:110
1015653992929,0cyclictest1260-21snmpd11:30:593
1015653992927,1cyclictest1321337-21kworker/3:2+pm12:29:033
1015643992827,1cyclictest1260-21snmpd07:55:360
1015653992713,13cyclictest247560-21ThreadPoolForeg11:49:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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