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2025-12-18 - 08:51
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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 Wed Dec 17, 2025 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40860252220172,35sleep20-21swapper/207:07:012
40861372205181,14sleep30-21swapper/307:08:303
40861352204180,14sleep10-21swapper/107:08:281
4086433991140,113cyclictest3125684-21Chrome_DevTools10:45:013
408297928948,11sleep00-21swapper/007:05:180
4086433998073,5cyclictest247557-21chrome11:45:023
4086433998073,5cyclictest247557-21chrome11:45:023
4086428996827,38cyclictest4186323-21munin-update08:45:012
4086426996651,5cyclictest4125070-21CacheThread_Blo07:45:011
4086423996658,5cyclictest3125721-21chrome11:45:020
4086423996658,5cyclictest3125721-21chrome11:45:020
4086423996651,3cyclictest117501-21chrome10:45:010
408642399651,63cyclictest173649-21kworker/u8:4+efi_rts_wq11:40:050
408642899641,62cyclictest173649-21kworker/u8:4+efi_rts_wq11:40:042
4086426996258,3cyclictest85727-31munin-html10:10:391
4086426996258,3cyclictest85727-31munin-html10:10:391
4086428996155,5cyclictest3125691-21ThreadPoolForeg07:35:412
4086433996020,39cyclictest4186625-21ThreadPoolForeg08:45:003
4086428996055,4cyclictest3125688-21Chrome_ChildIOT12:00:002
4086433995844,13cyclictest206001-21/usr/share/muni12:10:163
4086428995651,4cyclictest4185948-21kworker/u8:3+flush-179:009:00:002
4086423995653,2cyclictest28431-21kworker/u8:0+flush-179:009:40:350
4086428995550,3cyclictest179957-21snmp_wlanswitch11:45:022
4086428995550,3cyclictest179957-21snmp_wlanswitch11:45:022
4086426995338,13cyclictest247557-21chrome10:45:011
4086433995248,3cyclictest173649-21kworker/u8:4+flush-179:011:40:263
4086433995243,8cyclictest56744-21ThreadPoolForeg09:45:173
4086428995249,3cyclictest4113595-21kworker/u8:4+flush-179:008:35:072
4086428995248,3cyclictest4155283-21kworker/u8:0+flush-179:009:00:292
4086426995146,3cyclictest4086596-21/usr/share/muni07:10:161
4086433995047,2cyclictest4113595-21kworker/u8:4+flush-179:007:49:143
4086433995045,4cyclictest4166152-21/usr/share/muni08:25:163
4086426995044,4cyclictest44160-21latency_hist09:35:011
4086426995044,4cyclictest44160-21latency_hist09:35:011
408642399506,41cyclictest4186618-21chrome08:45:010
4086423994946,2cyclictest75467-21kworker/u8:1+flush-179:010:18:330
4086433994842,4cyclictest8151-21/usr/share/muni09:00:083
4086428994842,4cyclictest54877-21/usr/share/muni09:45:112
4086428994836,11cyclictest2763-21kworker/2:0+pm09:53:032
4086426994844,3cyclictest86612-21/usr/share/muni10:15:111
4086423994844,3cyclictest4185948-21kworker/u8:3+flush-179:009:35:150
4086428994744,2cyclictest111731-21kworker/u8:1+flush-179:011:25:312
4086428994743,3cyclictest44623-21/usr/share/muni09:35:082
4086426994743,3cyclictest4186323-21munin-update08:45:351
4086426994741,4cyclictest64862-21kworker/u8:5+flush-179:010:25:311
4086433994643,2cyclictest4113595-21kworker/u8:4+flush-179:008:09:363
4086433994642,3cyclictest4021164-21kworker/u8:1+flush-179:007:35:073
4086428994643,2cyclictest163454-21kworker/u8:0+flush-179:011:35:012
4086428994641,4cyclictest4152228-21ntpq08:10:152
4086426994641,3cyclictest54998-21Chrome_ChildIOT09:45:101
4086426994640,4cyclictest4119783-21/usr/share/muni07:40:151
4086423994642,3cyclictest4136660-21apt-get07:55:120
408642399460,44cyclictest247557-21chrome07:45:210
41061442450,0chrt4106145-21/usr/sbin/munin07:25:212
4086433994541,3cyclictest4113595-21kworker/u8:4+flush-179:008:42:023
4086433994541,3cyclictest28431-21kworker/u8:0+events_unbound10:30:113
4086428994542,3cyclictest111731-21kworker/u8:1+flush-179:011:10:112
4086428994542,2cyclictest101542-21kworker/u8:2+flush-179:010:30:012
4086426994542,2cyclictest4113595-21kworker/u8:4+flush-179:009:06:571
4086426994540,4cyclictest111731-21kworker/u8:1+events_unbound11:10:241
4086426994539,4cyclictest4135441-21/usr/share/muni07:55:191
4086423994541,3cyclictest4021164-21kworker/u8:1+flush-179:008:05:100
4086433994441,2cyclictest230403-21kworker/u8:5+flush-179:012:35:063
4086428994441,2cyclictest43781-21kworker/u8:4+events_unbound09:40:072
4086428994441,2cyclictest4135646-21kworker/u8:3+flush-179:008:20:332
4086428994441,2cyclictest4135646-21kworker/u8:3+flush-179:008:20:322
4086428994440,3cyclictest28431-21kworker/u8:0+flush-179:010:00:182
4086428994439,4cyclictest3125688-21Chrome_ChildIOT12:35:302
4086423994440,3cyclictest2007-21munin-limits08:50:340
4086433994340,2cyclictest4054511-21kworker/u8:3+flush-179:007:15:353
4086428994341,1cyclictest4188857-1kworker/2:1H+kblockd12:15:082
4086428994339,3cyclictest184585-21kworker/u8:1+flush-179:012:26:412
4086428994339,3cyclictest132419-21kworker/u8:0+flush-179:011:00:202
4086428994339,3cyclictest122122-21kworker/u8:3+flush-179:012:25:002
4086426994336,5cyclictest122122-21kworker/u8:3+flush-179:010:50:091
4086423994340,2cyclictest4021164-21kworker/u8:1+flush-179:007:15:000
4086423994339,3cyclictest28431-21kworker/u8:0+flush-179:010:00:140
4086423994339,3cyclictest173649-21kworker/u8:4+events_unbound11:40:000
4086423994339,2cyclictest28431-21kworker/u8:0+flush-179:009:55:310
4086433994239,2cyclictest200379-21gpgv12:05:013
4086433994238,3cyclictest43781-21kworker/u8:4+events_unbound09:45:013
4086433994238,3cyclictest143469-21/usr/share/muni11:10:183
4086433994228,2cyclictest3966394-1kworker/3:2H+kblockd10:08:343
4086428994230,10cyclictest4188857-1kworker/2:1H+kblockd10:25:322
4086428994227,14cyclictest173649-21kworker/u8:4+flush-179:011:38:312
4086428994217,24cyclictest122122-21kworker/u8:3+flush-179:012:11:122
4086426994235,5cyclictest70857-21/usr/share/muni10:00:011
4086426994232,7cyclictest247515-21ThreadPoolForeg08:00:041
4086423994239,2cyclictest173649-21kworker/u8:4+flush-179:012:20:160
4086433994138,2cyclictest23234-21kworker/u8:2+events_unbound09:25:343
4086433994138,2cyclictest184585-21kworker/u8:1+flush-179:011:55:113
4086433994137,3cyclictest28431-21kworker/u8:0+flush-179:010:35:303
4086433994137,3cyclictest163454-21kworker/u8:0+flush-179:011:50:043
4086433994137,3cyclictest111731-21kworker/u8:1+flush-179:011:05:153
408643399412,2cyclictest0-21swapper/308:40:003
4086428994138,2cyclictest28431-21kworker/u8:0+flush-179:010:17:012
408642899411,39cyclictest3125709-13VizCompositorTh07:54:592
4086426994137,3cyclictest4165805-21kworker/u8:1+flush-179:008:35:201
4086426994137,3cyclictest3893757-1kworker/1:0H+kblockd07:35:011
4086426994136,4cyclictest64862-21kworker/u8:5+events_unbound10:34:091
4086426994135,4cyclictest173649-21kworker/u8:4+flush-179:012:20:171
4086426994133,6cyclictest3125725-21ThreadPoolForeg08:54:501
4086423994137,3cyclictest122122-21kworker/u8:3+events_unbound12:17:020
4086423994136,4cyclictest7676-21kworker/u8:1+flush-179:009:10:160
4086423994136,4cyclictest7676-21kworker/u8:1+flush-179:009:10:160
4086423994135,4cyclictest4185948-21kworker/u8:3+flush-179:009:45:300
4086423994133,6cyclictest96994-21/usr/share/muni10:25:160
4086433994038,2cyclictest4185948-21kworker/u8:3+flush-179:009:35:163
4086433994036,3cyclictest44382-21cp09:35:013
4086433994036,3cyclictest44382-21cp09:35:003
4086428994037,2cyclictest64862-21kworker/u8:5+flush-179:010:45:282
4086428994037,2cyclictest4075436-21kworker/u8:0+events_unbound07:16:552
4086428994037,2cyclictest4039196-21kworker/u8:4+flush-179:007:10:212
4086428994036,3cyclictest4181094-21kworker/u8:2+events_unbound08:45:012
4086428994036,3cyclictest4135442-21/usr/share/muni07:55:092
4086428994036,2cyclictest4113595-21kworker/u8:4+flush-179:008:17:092
4086428994033,6cyclictest4188857-1kworker/2:1H+kblockd10:07:052
4086426994036,3cyclictest111731-21kworker/u8:1+flush-179:011:15:361
4086426994032,5cyclictest4150509-21latency_hist08:10:011
4086423994036,3cyclictest4155283-21kworker/u8:0+events_unbound08:35:330
4086423994036,3cyclictest184598-21kworker/u8:5+flush-179:011:50:340
4086423994036,3cyclictest134209-21apache_volume11:00:130
4086423994034,4cyclictest4114243-21/usr/share/muni07:35:020
4086423994033,5cyclictest3125724-21ThreadPoolForeg08:59:040
4086433993936,2cyclictest4185948-21kworker/u8:3+flush-179:010:00:303
4086433993935,3cyclictest247561-21ThreadPoolForeg11:37:493
4086433993933,5cyclictest3125724-21ThreadPoolForeg12:25:053
4086428993938,1cyclictest101680-21kworker/2:0+pm11:17:392
4086428993937,1cyclictest4065927-21kworker/2:1+pm07:42:072
4086428993937,1cyclictest101680-21kworker/2:0+pm11:06:232
4086428993937,1cyclictest101680-21kworker/2:0+pm10:42:112
4086428993936,2cyclictest65626-21kworker/2:2+pm10:20:142
4086428993936,2cyclictest4185948-21kworker/u8:3+events_unbound09:10:032
4086428993936,2cyclictest4185948-21kworker/u8:3+events_unbound09:10:032
4086428993936,2cyclictest4065927-21kworker/2:1+pm08:07:222
4086428993936,2cyclictest4065927-21kworker/2:1+pm07:35:002
4086428993936,2cyclictest4065927-21kworker/2:1+pm07:21:122
4086428993936,2cyclictest28431-21kworker/u8:0+flush-179:009:25:162
4086428993936,2cyclictest2763-21kworker/2:0+pm09:05:302
4086426993936,2cyclictest75822-21kworker/1:0+pm12:37:251
4086426993934,3cyclictest3893757-1kworker/1:0H+kblockd07:25:041
4086426993934,3cyclictest131975-31munin-html10:55:361
4086426993932,5cyclictest44624-21/usr/share/muni09:35:031
4086426993930,6cyclictest3125725-21ThreadPoolForeg08:40:261
4086426993925,2cyclictest3893757-1kworker/1:0H+kblockd12:10:061
4086423993935,3cyclictest4185948-21kworker/u8:3+events_unbound09:20:340
4086423993934,4cyclictest247560-21ThreadPoolForeg09:50:190
552032380,2sleep155200-21snmp_wanswitch.09:45:051
4086433993830,7cyclictest1260-21snmpd09:18:353
4086428993836,1cyclictest4191570-21kworker/2:1+pm08:51:482
4086428993836,1cyclictest4150786-21kworker/2:2+pm08:25:502
4086428993836,1cyclictest4065927-21kworker/2:1+pm08:03:402
4086428993836,1cyclictest4065927-21kworker/2:1+pm07:46:502
4086428993835,2cyclictest2763-21kworker/2:0+pm09:15:232
4086428993835,2cyclictest101680-21kworker/2:0+pm11:20:082
4086428993835,2cyclictest101680-21kworker/2:0+pm10:56:542
4086428993835,2cyclictest101680-21kworker/2:0+pm10:50:162
4086428993835,2cyclictest101680-21kworker/2:0+pm10:35:172
4086428993834,3cyclictest64862-21kworker/u8:5+events_unbound09:55:402
4086428993834,3cyclictest4113595-21kworker/u8:4+flush-179:008:30:322
4086428993834,3cyclictest4113595-21kworker/u8:4+flush-179:008:30:322
408642899381,16cyclictest230979-31munin-graph12:31:192
4086426993834,3cyclictest3125629-21e21169fc69a4c6709:24:061
4086426993834,2cyclictest3893757-1kworker/1:0H+kblockd07:35:011
4086423993834,3cyclictest4021164-21kworker/u8:1+flush-179:007:15:230
4086423993834,3cyclictest122122-21kworker/u8:3+flush-179:011:12:260
4086433993734,2cyclictest4113929-21kworker/3:2+pm08:11:533
4086433993734,2cyclictest3966394-1kworker/3:2H+kblockd07:56:583
4086433993734,2cyclictest3966394-1kworker/3:2H+kblockd07:41:333
4086433993734,2cyclictest3966394-1kworker/3:2H+kblockd07:21:373
4086433993734,2cyclictest3966394-1kworker/3:2H+kblockd07:15:003
4086433993734,2cyclictest173649-21kworker/u8:4+flush-179:012:24:543
4086433993733,3cyclictest122122-21kworker/u8:3+flush-179:012:05:083
4086428993735,1cyclictest65626-21kworker/2:2+pm10:12:092
4086428993735,1cyclictest65626-21kworker/2:2+pm10:12:082
4086428993734,2cyclictest2763-21kworker/2:0+pm09:30:112
4086428993734,2cyclictest2763-21kworker/2:0+pm09:30:112
4086428993734,2cyclictest101680-21kworker/2:0+pm12:02:512
408642899371,5cyclictest3125721-21chrome09:20:352
4086428993711,25cyclictest0-21swapper/212:05:482
4086426993734,2cyclictest3893757-1kworker/1:0H+kblockd12:30:051
4086426993734,2cyclictest3893757-1kworker/1:0H+kblockd12:25:061
4086426993734,2cyclictest3893757-1kworker/1:0H+kblockd11:06:431
4086426993734,2cyclictest3893757-1kworker/1:0H+kblockd10:38:011
4086426993734,2cyclictest3893757-1kworker/1:0H+kblockd10:08:181
4086426993733,3cyclictest3893757-1kworker/1:0H+kblockd08:10:171
4086426993733,3cyclictest28431-21kworker/u8:0+flush-179:009:50:051
4086426993732,4cyclictest247563-13Compositor12:00:221
4086426993732,3cyclictest3893757-1kworker/1:0H+kblockd10:42:201
4086426993730,5cyclictest4021164-21kworker/u8:1+events_unbound07:15:231
4086426993730,2cyclictest3893757-1kworker/1:0H+kblockd11:23:581
4086423993734,2cyclictest3608646-1kworker/0:2H+kblockd12:39:290
4086423993734,2cyclictest3608646-1kworker/0:2H+kblockd10:53:340
4086423993734,2cyclictest3608646-1kworker/0:2H+kblockd10:40:090
4086423993734,2cyclictest3608646-1kworker/0:2H+kblockd08:00:060
4086423993734,2cyclictest3608646-1kworker/0:2H+kblockd07:20:120
4086423993733,3cyclictest3608646-1kworker/0:2H+kblockd10:13:050
4086423993733,3cyclictest3608646-1kworker/0:2H+kblockd10:13:050
4086423993733,3cyclictest122122-21kworker/u8:3+flush-179:011:30:110
4086423993729,6cyclictest4155862-21/usr/share/muni08:15:140
4086433993634,1cyclictest3966394-1kworker/3:2H+kblockd10:25:143
4086433993634,1cyclictest3966394-1kworker/3:2H+kblockd10:16:353
4086433993634,1cyclictest3966394-1kworker/3:2H+kblockd08:54:503
4086433993634,1cyclictest3966394-1kworker/3:2H+kblockd07:50:153
4086433993633,2cyclictest75709-21kworker/3:2+pm11:27:053
4086433993633,2cyclictest3966394-1kworker/3:2H+kblockd12:34:343
4086433993633,2cyclictest163454-21kworker/u8:0+flush-179:011:30:333
4086433993633,1cyclictest3966394-1kworker/3:2H+kblockd08:20:333
4086433993633,1cyclictest3966394-1kworker/3:2H+kblockd08:20:323
4086433993631,4cyclictest91893-21/usr/share/muni10:20:053
4086433993626,9cyclictest3125726-13Chrome_ChildIOT08:59:033
4086428993634,1cyclictest101680-21kworker/2:0+pm11:53:552
4086426993633,2cyclictest3893757-1kworker/1:0H+kblockd11:32:491
4086426993633,2cyclictest3893757-1kworker/1:0H+kblockd09:00:301
4086426993633,2cyclictest3893757-1kworker/1:0H+kblockd08:56:511
4086426993633,2cyclictest3893757-1kworker/1:0H+kblockd08:20:551
4086426993633,2cyclictest3893757-1kworker/1:0H+kblockd08:20:551
4086426993632,3cyclictest122122-21kworker/u8:3+flush-179:011:55:181
4086426993632,2cyclictest3893757-1kworker/1:0H+kblockd12:16:271
4086426993621,3cyclictest247563-13Compositor10:20:181
4086423993634,1cyclictest4108341-21kworker/0:1+pm07:44:430
4086423993633,2cyclictest4113595-21kworker/u8:4+events_unbound09:05:120
4086423993633,2cyclictest4075436-21kworker/u8:0+flush-179:007:30:210
4086423993633,2cyclictest3608646-1kworker/0:2H+kblockd11:18:040
4086423993633,2cyclictest3608646-1kworker/0:2H+kblockd10:30:090
4086423993633,2cyclictest3608646-1kworker/0:2H+kblockd08:21:390
4086423993633,2cyclictest3608646-1kworker/0:2H+kblockd08:21:390
4086423993633,2cyclictest3608646-1kworker/0:2H+kblockd08:11:380
4086423993633,2cyclictest247560-21ThreadPoolForeg11:57:590
4086423993632,3cyclictest75467-21kworker/u8:1+flush-179:010:05:270
4086423993632,3cyclictest122122-21kworker/u8:3+flush-179:012:05:230
4086423993632,2cyclictest3125648-13Chrome_IOThread11:05:130
4086433993533,1cyclictest4171073-21kworker/3:1+pm08:33:293
4086433993533,1cyclictest4171073-21kworker/3:1+pm08:33:293
4086433993533,1cyclictest3966394-1kworker/3:2H+kblockd12:18:203
4086433993533,1cyclictest3966394-1kworker/3:2H+kblockd09:10:073
4086433993533,1cyclictest3966394-1kworker/3:2H+kblockd09:10:073
4086433993532,2cyclictest111731-21kworker/u8:1+flush-179:011:20:373
4086433993528,7cyclictest1260-21snmpd07:28:293
4086426993533,1cyclictest3893757-1kworker/1:0H+kblockd11:51:561
4086426993532,2cyclictest3893757-1kworker/1:0H+kblockd09:18:561
4086426993532,2cyclictest3893757-1kworker/1:0H+kblockd07:52:111
4086426993532,2cyclictest1260-21snmpd11:04:381
4086423993532,2cyclictest44196-21gpgv09:35:000
4086423993532,2cyclictest44196-21gpgv09:35:000
4086423993532,2cyclictest3608646-1kworker/0:2H+kblockd09:26:500
4086423993532,2cyclictest3608646-1kworker/0:2H+kblockd08:32:580
4086423993532,2cyclictest3608646-1kworker/0:2H+kblockd08:32:580
4086423993532,2cyclictest3608646-1kworker/0:2H+kblockd07:26:120
4086423993532,2cyclictest173649-21kworker/u8:4+flush-179:012:01:340
4086423993531,3cyclictest4155283-21kworker/u8:0+flush-179:009:05:010
4086423993531,2cyclictest3608646-1kworker/0:2H+kblockd11:20:550
4086433993432,2cyclictest3966394-1kworker/3:2H+kblockd09:21:533
4086433993431,2cyclictest4155283-21kworker/u8:0+events_unbound08:15:333
4086433993431,2cyclictest3966394-1kworker/3:2H+kblockd10:55:483
4086433993431,2cyclictest3125709-13VizCompositorTh10:53:363
4086433993431,2cyclictest111731-21kworker/u8:1+events_unbound11:15:283
4086426993431,2cyclictest4155864-21munin-node08:15:001
4086426993431,2cyclictest3893757-1kworker/1:0H+kblockd11:43:351
4086426993431,2cyclictest3893757-1kworker/1:0H+kblockd09:58:411
4086426993429,3cyclictest3893757-1kworker/1:0H+kblockd11:45:091
4086426993429,3cyclictest3893757-1kworker/1:0H+kblockd11:45:091
4086426993420,13cyclictest3125627-21ChromeDriver00:55:191
4086423993431,2cyclictest3608646-1kworker/0:2H+kblockd12:12:050
4086423993431,2cyclictest3608646-1kworker/0:2H+kblockd10:56:480
4086433993330,2cyclictest3966394-1kworker/3:2H+kblockd09:52:543
4086433993330,2cyclictest3125726-13Chrome_ChildIOT10:13:063
4086433993330,2cyclictest3125726-13Chrome_ChildIOT10:13:053
4086433993330,2cyclictest111731-21kworker/u8:1+flush-179:010:44:193
4086426993329,3cyclictest3893757-1kworker/1:0H+kblockd07:22:361
4086426993329,2cyclictest1260-21snmpd09:27:181
4086426993328,4cyclictest3125688-21Chrome_ChildIOT09:10:101
4086426993328,4cyclictest3125688-21Chrome_ChildIOT09:10:101
4086423993332,1cyclictest3608646-1kworker/0:2H+kblockd08:41:490
4086423993331,1cyclictest3608646-1kworker/0:2H+kblockd10:21:200
4086423993331,1cyclictest3608646-1kworker/0:2H+kblockd09:18:440
4086423993327,5cyclictest221385-21/usr/share/muni12:25:150
4086433993230,1cyclictest3125725-21ThreadPoolForeg09:08:293
4086433993230,1cyclictest105470-21isc-net-000007:34:523
4086433993229,2cyclictest3966394-1kworker/3:2H+kblockd09:56:063
4086433993229,2cyclictest3966394-1kworker/3:2H+kblockd08:00:343
4086426993229,2cyclictest1260-21snmpd11:25:481
4086426993228,3cyclictest247557-21chrome11:35:081
4086426993220,10cyclictest200766-21/usr/share/muni12:05:041
4086423993230,1cyclictest3608646-1kworker/0:2H+kblockd08:28:490
4086423993230,1cyclictest1260-21snmpd11:28:090
4086423993230,1cyclictest1260-21snmpd10:36:250
4086423993229,2cyclictest3608646-1kworker/0:2H+kblockd07:50:050
4086423993226,5cyclictest226486-21/usr/share/muni12:30:030
4086433993120,10cyclictest1260-21snmpd11:02:023
4086426993129,1cyclictest3893757-1kworker/1:0H+kblockd08:34:041
4086426993129,1cyclictest3893757-1kworker/1:0H+kblockd08:34:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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