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2025-12-08 - 17:55
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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 Mon Dec 08, 2025 12:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33283292212169,33sleep20-21swapper/207:08:342
33282622202179,13sleep10-21swapper/107:07:411
33281042196173,13sleep00-21swapper/007:06:120
33283832193166,17sleep30-21swapper/307:09:163
3328854999338,52cyclictest3489926-21chrome09:45:013
3328844998534,12cyclictest3489951-21snmp_areswitch.09:45:011
332884499731,71cyclictest3478066-21kworker/u8:1+efi_rts_wq09:38:531
3328844997166,3cyclictest3525411-21kworker/u8:0+events_unbound10:30:381
3328844996764,2cyclictest3333395-21kworker/u8:4+flush-179:008:20:271
3328854996450,10cyclictest3402600-21kworker/u8:5+flush-179:009:20:293
3328848996357,4cyclictest3531149-21kworker/u8:2+flush-179:010:45:412
3328854996257,3cyclictest3354687-21kworker/u8:1+events_unbound08:30:353
3328844996259,2cyclictest3640377-21kworker/u8:2+events_unbound12:15:361
3328854996157,3cyclictest3645956-21kworker/u8:0+flush-179:012:30:393
3328854996157,3cyclictest3525411-21kworker/u8:0+flush-179:011:00:403
3328854996055,3cyclictest3458449-21kworker/u8:1+events_unbound09:15:013
3328844996056,3cyclictest3478066-21kworker/u8:1+flush-179:009:55:271
3328844996054,5cyclictest3125689-21ThreadPoolForeg07:40:251
332884899584,11cyclictest3489932-21snmp_wanswitch.09:45:012
3328844995855,2cyclictest3417086-21kworker/u8:0+flush-179:008:35:281
3328844995854,3cyclictest3312405-21kworker/u8:0+flush-179:008:15:171
3328848995753,3cyclictest3531149-21kworker/u8:2+flush-179:010:25:152
3328844995754,2cyclictest3593876-21kworker/u8:3+events_unbound11:35:091
3328844995753,3cyclictest3417086-21kworker/u8:0+flush-179:008:40:131
3328854995652,3cyclictest3333395-21kworker/u8:4+events_unbound07:40:203
3328848995652,3cyclictest3402600-21kworker/u8:5+events_unbound08:40:102
3328844995653,2cyclictest3478066-21kworker/u8:1+events_unbound10:13:401
3328854995553,2cyclictest3380897-21kworker/u8:2+flush-179:008:05:333
3328854995551,3cyclictest3531149-21kworker/u8:2+flush-179:010:26:553
3328854995551,3cyclictest3478066-21kworker/u8:1+events_unbound09:40:413
3328844995552,2cyclictest3401121-21kworker/u8:3+events_unbound08:30:251
3328844995552,2cyclictest3401121-21kworker/u8:3+events_unbound08:25:351
3328844995551,3cyclictest3660907-21kworker/u8:3+flush-179:012:36:251
3328854995451,2cyclictest3333395-21kworker/u8:4+flush-179:008:10:263
3328844995451,2cyclictest3531149-21kworker/u8:2+flush-179:010:40:001
3328844995451,2cyclictest3531149-21kworker/u8:2+flush-179:010:39:591
3328854995349,3cyclictest3345280-21latency_hist07:25:013
3328854995250,2cyclictest3589229-21kworker/u8:1+flush-179:011:20:383
3328854995249,2cyclictest3417086-21kworker/u8:0+events_unbound08:35:303
3328854995249,2cyclictest3281213-21kworker/u8:2+flush-179:007:15:083
3328844995249,3cyclictest3578162-21kworker/u8:0+flush-179:011:10:391
3328844995244,3cyclictest3593876-21kworker/u8:3+events_unbound11:40:071
3328840995245,5cyclictest3500966-21/usr/share/muni09:55:020
3328854995148,2cyclictest3599004-21kworker/u8:1+flush-179:011:55:363
3328854995148,2cyclictest3556028-21kworker/u8:1+flush-179:010:45:333
3328848995147,3cyclictest3402600-21kworker/u8:5+events_unbound08:25:182
3328844995148,2cyclictest3609979-21kworker/u8:2+flush-179:011:50:311
3328844995148,2cyclictest3417086-21kworker/u8:0+flush-179:008:50:081
3328844995148,2cyclictest3402600-21kworker/u8:5+events_unbound09:00:441
3328840995146,3cyclictest3402600-21kworker/u8:5+flush-179:009:15:240
3328840995137,2cyclictest3578162-21kworker/u8:0+flush-179:011:25:030
3328854995046,3cyclictest3402600-21kworker/u8:5+events_unbound10:43:393
3328854995044,2cyclictest3593876-21kworker/u8:3+flush-179:011:45:123
3328844995046,3cyclictest3402600-21kworker/u8:5+flush-179:009:20:191
3328844995046,2cyclictest3354687-21kworker/u8:1+flush-179:008:00:391
3328854994946,2cyclictest3645956-21kworker/u8:0+flush-179:012:20:183
3328854994946,2cyclictest3447673-21kworker/u8:2+events_unbound09:35:143
3328854994946,2cyclictest3354687-21kworker/u8:1+events_unbound08:25:293
3328854994945,3cyclictest3333395-21kworker/u8:4+events_unbound07:35:283
3328854994942,2cyclictest3531149-21kworker/u8:2+events_unbound10:37:003
3328854994942,2cyclictest3531149-21kworker/u8:2+events_unbound10:37:003
3328848994946,2cyclictest3354687-21kworker/u8:1+flush-179:008:00:332
3328848994945,3cyclictest3640377-21kworker/u8:2+flush-179:012:20:152
3328848994945,3cyclictest3474110-21/usr/share/muni09:30:092
3328844994945,3cyclictest3489460-21kworker/u8:2+flush-179:010:00:131
3328854994846,2cyclictest3578162-21kworker/u8:0+flush-179:011:25:163
3328854994846,2cyclictest3333395-21kworker/u8:4+events_unbound07:55:233
3328854994845,2cyclictest3599004-21kworker/u8:1+flush-179:011:50:313
3328854994845,2cyclictest3489460-21kworker/u8:2+events_unbound09:50:163
3328854994835,12cyclictest3632694-21kworker/u8:4+flush-179:012:15:253
3328848994844,3cyclictest3402600-21kworker/u8:5+flush-179:009:35:382
3328844994845,2cyclictest3478066-21kworker/u8:1+flush-179:009:35:011
3328844994845,2cyclictest3402600-21kworker/u8:5+flush-179:011:30:361
3328844994845,2cyclictest3312405-21kworker/u8:0+events_unbound08:05:381
3328844994844,3cyclictest3521491-21/usr/share/muni10:15:101
3328844994844,3cyclictest3402600-21kworker/u8:5+flush-179:009:05:251
3328844994831,11cyclictest3599004-21kworker/u8:1+flush-179:012:05:131
3328840994842,5cyclictest3515813-31munin-html10:06:260
3328854994744,2cyclictest3417086-21kworker/u8:0+events_unbound08:50:093
3328854994744,2cyclictest3402600-21kworker/u8:5+events_unbound09:55:103
3328854994743,3cyclictest3489460-21kworker/u8:2+flush-179:010:05:203
3328854994743,3cyclictest3371051-21latency_hist07:50:003
3328848994744,2cyclictest3281199-21kworker/2:2+pm07:16:082
3328848994739,6cyclictest3125725-21ThreadPoolForeg10:40:502
3328844994745,2cyclictest3333395-21kworker/u8:4+flush-179:007:20:371
3328844994744,2cyclictest3291110-21kworker/u8:3+flush-179:007:30:241
3328844994743,3cyclictest3632694-21kworker/u8:4+flush-179:012:28:491
3328844994743,3cyclictest3531149-21kworker/u8:2+flush-179:010:55:051
3328844994731,15cyclictest2431947-1kworker/1:2H+kblockd11:25:011
3328840994743,3cyclictest3355710-21/usr/share/muni07:35:050
3328854994643,2cyclictest3599004-21kworker/u8:1+flush-179:012:05:073
3328854994643,2cyclictest3333395-21kworker/u8:4+flush-179:007:30:323
3328854994642,3cyclictest3333683-21munin-limits07:11:163
3328848994644,1cyclictest3579973-21kworker/2:1+pm11:18:442
3328848994642,2cyclictest3619981-21kworker/2:2+pm12:39:132
3328844994642,3cyclictest3609979-21kworker/u8:2+events_unbound11:45:301
3328844994642,3cyclictest3417086-21kworker/u8:0+events_unbound08:58:271
3328840994640,4cyclictest3537284-21/usr/share/muni10:30:130
3328840994640,3cyclictest3564731-21apt-get10:55:140
3328854994542,2cyclictest3401121-21kworker/u8:3+events_unbound08:40:463
3328854994541,3cyclictest3525411-21kworker/u8:0+events_unbound10:30:083
3328854994538,2cyclictest3578162-21kworker/u8:0+events_unbound11:30:093
3328848994542,2cyclictest3402600-21kworker/u8:5+flush-179:011:10:342
3328848994540,4cyclictest3417086-21kworker/u8:0+flush-179:008:35:102
3328848994539,4cyclictest3397196-21/usr/share/muni08:15:102
3328848994535,9cyclictest3500078-21kworker/2:0+pm10:18:322
3328848994532,1cyclictest3147934-1kworker/2:2H+kblockd12:16:142
3328844994542,2cyclictest3599004-21kworker/u8:1+flush-179:011:55:101
3328844994542,2cyclictest3402600-21kworker/u8:5+flush-179:011:15:181
3328844994541,3cyclictest3589229-21kworker/u8:1+flush-179:011:20:101
3328844994541,3cyclictest3525411-21kworker/u8:0+flush-179:010:23:431
3328844994541,3cyclictest3312405-21kworker/u8:0+events_unbound07:37:361
3328844994540,4cyclictest3125725-21ThreadPoolForeg09:20:001
3328844994536,9cyclictest3312405-21kworker/u8:0+events_unbound08:10:201
3328844994530,14cyclictest3632694-21kworker/u8:4+flush-179:012:04:521
3328840994542,2cyclictest3593876-21kworker/u8:3+flush-179:011:45:090
332884099451,42cyclictest247557-21chrome07:30:060
3328854994442,2cyclictest3593876-21kworker/u8:3+events_unbound11:35:413
3328854994441,2cyclictest3645956-21kworker/u8:0+events_unbound12:38:193
3328854994441,2cyclictest3578162-21kworker/u8:0+events_unbound11:10:113
3328854994441,2cyclictest3515939-21kworker/u8:4+events_unbound10:17:003
3328854994441,2cyclictest3354687-21kworker/u8:1+flush-179:009:05:333
3328854994440,3cyclictest3632694-21kworker/u8:4+flush-179:012:29:223
3328848994441,2cyclictest3599004-21kworker/u8:1+flush-179:012:05:322
3328848994441,2cyclictest3579973-21kworker/2:1+pm11:46:322
3328848994432,11cyclictest3281199-21kworker/2:2+pm07:26:092
3328848994428,4cyclictest3599004-21kworker/u8:1+events_unbound11:55:212
3328844994442,2cyclictest3478066-21kworker/u8:1+flush-179:009:40:321
3328844994441,2cyclictest3531149-21kworker/u8:2+flush-179:011:05:361
3328844994441,2cyclictest3531149-21kworker/u8:2+flush-179:011:05:361
3328844994440,3cyclictest3632694-21kworker/u8:4+flush-179:012:10:161
3328840994440,3cyclictest3125726-13Chrome_ChildIOT09:50:160
332884099442,41cyclictest3478066-21kworker/u8:1+efi_rts_wq09:38:510
3328854994340,2cyclictest3578162-21kworker/u8:0+events_unbound11:15:143
3328854994340,2cyclictest3531149-21kworker/u8:2+events_unbound11:05:313
3328854994340,2cyclictest3531149-21kworker/u8:2+events_unbound11:05:313
3328854994339,3cyclictest3354687-21kworker/u8:1+events_unbound08:47:033
3328848994339,3cyclictest3640377-21kworker/u8:2+flush-179:012:12:252
3328848994339,3cyclictest3515939-21kworker/u8:4+events_unbound10:35:012
3328848994338,3cyclictest3354687-21kworker/u8:1+flush-179:007:45:182
3328844994340,2cyclictest3402600-21kworker/u8:5+events_unbound11:00:491
3328840994339,3cyclictest3531149-21kworker/u8:2+events_unbound10:40:090
3328840994329,12cyclictest2125397-1kworker/0:2H+kblockd07:42:050
3328854994240,2cyclictest3593876-21kworker/u8:3+flush-179:012:00:203
3328854994239,2cyclictest3599004-21kworker/u8:1+flush-179:011:41:053
3328854994239,2cyclictest3525411-21kworker/u8:0+events_unbound10:55:303
3328854994239,2cyclictest3515939-21kworker/u8:4+events_unbound10:13:123
3328854994239,2cyclictest3354687-21kworker/u8:1+events_unbound08:55:193
3328854994235,6cyclictest3125689-21ThreadPoolForeg08:00:203
3328848994238,3cyclictest3463918-21/usr/share/muni09:20:022
3328848994235,5cyclictest3413908-21diskstats08:30:162
3328848994226,14cyclictest3573633-21/usr/share/muni11:05:022
3328848994226,14cyclictest3573633-21/usr/share/muni11:05:022
3328844994239,2cyclictest3531149-21kworker/u8:2+events_unbound10:40:351
3328844994239,2cyclictest3515939-21kworker/u8:4+flush-179:010:25:381
3328844994238,3cyclictest3402600-21kworker/u8:5+events_unbound09:27:121
3328844994238,3cyclictest3354687-21kworker/u8:1+events_unbound08:49:071
3328844994238,3cyclictest3344885-21kworker/u8:1+events_unbound07:25:131
3328844994237,3cyclictest3660907-21kworker/u8:3+events_unbound12:30:311
3328844994235,2cyclictest3640377-21kworker/u8:2+flush-179:012:20:301
3328840994238,2cyclictest0-21swapper/009:25:060
3328840994237,4cyclictest3510733-31munin-graph10:01:420
3328854994138,2cyclictest3291110-21kworker/u8:3+events_unbound07:27:253
3328854994137,3cyclictest3453340-21kworker/u8:0+flush-179:009:30:123
3328854994137,3cyclictest3354687-21kworker/u8:1+events_unbound09:00:303
3328848994137,3cyclictest3478066-21kworker/u8:1+flush-179:010:00:042
3328848994136,4cyclictest3354687-21kworker/u8:1+flush-179:009:05:192
3328848994135,4cyclictest3333395-21kworker/u8:4+flush-179:008:05:372
3328848994133,6cyclictest3125724-21ThreadPoolForeg11:32:202
3328848994120,20cyclictest3125725-21ThreadPoolForeg09:27:232
3328844994138,2cyclictest3322623-21kworker/u8:1+flush-179:007:10:161
3328840994136,4cyclictest3585499-21apt-get11:15:130
3328840994134,5cyclictest3125725-21ThreadPoolForeg09:49:100
3328854994038,2cyclictest3489460-21kworker/u8:2+events_unbound10:00:323
3328854994038,2cyclictest3354687-21kworker/u8:1+flush-179:007:50:083
3328848994038,1cyclictest3619981-21kworker/2:2+pm12:00:352
3328848994037,2cyclictest3619981-21kworker/2:2+pm12:30:032
3328848994037,2cyclictest3541775-21kworker/2:1+pm10:38:402
3328848994037,2cyclictest3541775-21kworker/2:1+pm10:38:392
3328848994037,2cyclictest3281199-21kworker/2:2+pm08:56:142
3328848994037,2cyclictest3281199-21kworker/2:2+pm08:21:112
3328848994037,2cyclictest3281199-21kworker/2:2+pm07:59:062
3328848994036,3cyclictest3609979-21kworker/u8:2+flush-179:011:50:192
3328848994036,3cyclictest3500078-21kworker/2:0+pm10:13:402
3328848994036,3cyclictest3333724-31munin-graph07:11:362
3328848994036,3cyclictest3281199-21kworker/2:2+pm09:04:042
3328848994036,2cyclictest3619981-21kworker/2:2+pm12:27:312
3328848994036,2cyclictest3281199-21kworker/2:2+pm08:50:162
3328848994036,2cyclictest3281199-21kworker/2:2+pm07:44:152
3328848994035,3cyclictest3312405-21kworker/u8:0+flush-179:007:34:292
332884899401,3cyclictest3125721-21chrome11:21:352
3328844994037,2cyclictest3489460-21kworker/u8:2+events_unbound09:51:161
3328840994038,1cyclictest3666001-21kworker/0:2+pm12:38:450
3328840994036,3cyclictest3354687-21kworker/u8:1+events_unbound08:19:590
3328840994035,3cyclictest3599004-21kworker/u8:1+flush-179:012:00:450
3328854993936,2cyclictest3453340-21kworker/u8:0+flush-179:009:17:373
3328854993936,2cyclictest3401121-21kworker/u8:3+events_unbound08:20:553
3328848993937,1cyclictest3579973-21kworker/2:1+pm11:38:402
3328848993936,2cyclictest3500078-21kworker/2:0+pm10:24:292
3328848993936,2cyclictest3500078-21kworker/2:0+pm10:07:022
3328848993936,2cyclictest3281199-21kworker/2:2+pm09:41:042
3328848993936,2cyclictest3281199-21kworker/2:2+pm07:21:582
3328848993935,3cyclictest3458449-21kworker/u8:1+flush-179:009:15:092
3328848993935,3cyclictest3281199-21kworker/2:2+pm09:51:042
332884899391,37cyclictest0-21swapper/211:01:382
332884899391,34cyclictest247557-21chrome07:50:022
3328844993936,2cyclictest3510772-21kworker/u8:0+flush-179:010:05:291
3328844993935,3cyclictest3371294-21/usr/share/muni07:50:021
3328844993911,12cyclictest3402600-21kworker/u8:5+flush-179:010:49:091
3328840993938,1cyclictest3635394-21kworker/0:2+pm12:07:500
3328840993935,2cyclictest3366056-21apache_processe07:45:020
3328840993935,2cyclictest2125397-1kworker/0:2H+kblockd10:35:080
3328840993935,2cyclictest2125397-1kworker/0:2H+kblockd10:35:080
3328840993934,4cyclictest3449718-21apt-get09:05:110
3328840993933,4cyclictest3484463-21/usr/share/muni09:40:080
3328840993933,4cyclictest3354687-21kworker/u8:1+flush-179:008:11:120
3328840993926,12cyclictest2125397-1kworker/0:2H+kblockd12:13:040
3328854993835,2cyclictest3640377-21kworker/u8:2+flush-179:012:13:213
3328854993835,2cyclictest3525411-21kworker/u8:0+events_unbound10:21:533
3328854993834,3cyclictest3402600-21kworker/u8:5+flush-179:010:50:253
3328854993834,3cyclictest3402600-21kworker/u8:5+flush-179:010:50:253
3328848993836,1cyclictest3579973-21kworker/2:1+pm11:40:412
3328848993836,1cyclictest3281199-21kworker/2:2+pm09:13:302
3328848993835,2cyclictest3547401-21kworker/2:0+pm10:53:492
3328848993835,2cyclictest3547401-21kworker/2:0+pm10:53:492
3328848993835,2cyclictest3531149-21kworker/u8:2+events_unbound10:58:382
3328848993835,2cyclictest3281199-21kworker/2:2+pm07:39:462
3328848993834,3cyclictest3593876-21kworker/u8:3+events_unbound11:25:272
3328848993834,2cyclictest3281199-21kworker/2:2+pm08:45:112
3328844993835,2cyclictest3291110-21kworker/u8:3+flush-179:007:15:111
3328844993834,3cyclictest3531149-21kworker/u8:2+flush-179:010:54:131
3328844993834,3cyclictest3531149-21kworker/u8:2+flush-179:010:54:131
3328840993834,2cyclictest3125728-13Compositor08:43:570
3328840993833,3cyclictest2125397-1kworker/0:2H+kblockd08:46:050
3328840993832,5cyclictest3590642-21apt-get11:20:140
3328840993831,5cyclictest3402394-21/usr/share/muni08:20:020
3328840993830,6cyclictest1260-21snmpd07:52:280
3328854993734,2cyclictest2832197-1kworker/3:0H+kblockd09:30:003
3328854993734,2cyclictest2832197-1kworker/3:0H+kblockd08:15:093
3328848993735,1cyclictest3500078-21kworker/2:0+pm09:58:312
3328848993734,2cyclictest3147934-1kworker/2:2H+kblockd08:10:112
3328844993734,3cyclictest3402600-21kworker/u8:5+events_unbound09:13:231
3328844993733,3cyclictest3333395-21kworker/u8:4+events_unbound07:55:391
3328840993734,2cyclictest3578162-21kworker/u8:0+flush-179:011:13:300
3328840993734,2cyclictest2125397-1kworker/0:2H+kblockd10:19:570
3328840993734,2cyclictest2125397-1kworker/0:2H+kblockd09:30:040
3328840993734,2cyclictest2125397-1kworker/0:2H+kblockd08:56:570
3328840993734,2cyclictest2125397-1kworker/0:2H+kblockd08:51:140
3328840993733,3cyclictest3402600-21kworker/u8:5+flush-179:010:49:250
3328840993733,3cyclictest2125397-1kworker/0:2H+kblockd11:35:490
3328840993733,3cyclictest2125397-1kworker/0:2H+kblockd09:23:340
3328840993733,2cyclictest2125397-1kworker/0:2H+kblockd11:50:290
3328840993732,4cyclictest3525411-21kworker/u8:0+flush-179:011:00:260
3328840993731,5cyclictest3125627-21ChromeDriver00:55:190
3328840993720,15cyclictest247516-21Chrome_ChildIOT07:12:040
332884099371,34cyclictest3407511-21apache_processe08:25:020
3328844993632,3cyclictest3333395-21kworker/u8:4+flush-179:007:48:091
3328840993634,2cyclictest2125397-1kworker/0:2H+kblockd12:16:000
3328840993634,1cyclictest2125397-1kworker/0:2H+kblockd11:33:390
3328840993634,1cyclictest2125397-1kworker/0:2H+kblockd11:07:100
3328840993634,1cyclictest2125397-1kworker/0:2H+kblockd11:07:100
3328840993634,1cyclictest2125397-1kworker/0:2H+kblockd09:14:070
3328840993634,1cyclictest2125397-1kworker/0:2H+kblockd08:34:590
3328840993633,2cyclictest2125397-1kworker/0:2H+kblockd12:29:320
3328840993633,2cyclictest2125397-1kworker/0:2H+kblockd08:00:260
3328840993633,2cyclictest2125397-1kworker/0:2H+kblockd07:19:040
3328840993632,2cyclictest3333395-21kworker/u8:4+flush-179:008:06:000
3328840993632,2cyclictest2125397-1kworker/0:2H+kblockd10:21:390
3328840993631,3cyclictest3402600-21kworker/u8:5+flush-179:010:51:440
3328840993631,3cyclictest3402600-21kworker/u8:5+flush-179:010:51:440
3328840993631,3cyclictest2125397-1kworker/0:2H+kblockd12:22:330
3328840993533,1cyclictest2125397-1kworker/0:2H+kblockd12:33:460
3328840993532,2cyclictest2125397-1kworker/0:2H+kblockd11:40:290
3328840993530,4cyclictest2125397-1kworker/0:2H+kblockd07:25:580
3328840993432,1cyclictest2125397-1kworker/0:2H+kblockd07:20:460
3328840993431,2cyclictest2125397-1kworker/0:2H+kblockd10:14:470
3328840993430,3cyclictest2125397-1kworker/0:2H+kblockd07:57:020
3328840993430,2cyclictest2125397-1kworker/0:2H+kblockd08:36:360
3328840993429,4cyclictest247557-21chrome09:00:330
3328840993129,1cyclictest2125397-1kworker/0:2H+kblockd10:26:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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