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2025-11-05 - 06:05
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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 Tue Nov 04, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31815352213172,33sleep30-21swapper/307:09:443
31814102198149,39sleep10-21swapper/107:08:101
31814312196172,14sleep00-21swapper/007:08:250
31814832194164,19sleep20-21swapper/207:09:032
3181722996559,4cyclictest3449917-31munin-html11:25:352
3181722996460,3cyclictest3409387-21kworker/u8:3+flush-179:011:10:002
3181723996358,4cyclictest3218744-21CacheThread_Blo07:45:013
3181722996360,2cyclictest3192407-21kworker/u8:0+events_unbound07:50:362
3181722996157,3cyclictest3300714-21kworker/u8:4+events_unbound09:50:092
3181722995956,2cyclictest3275003-21kworker/u8:3+flush-179:009:05:312
3181722995553,2cyclictest3310988-21kworker/u8:0+flush-179:009:30:142
3181721995349,3cyclictest3434478-31munin-html11:10:361
3181723995245,5cyclictest3492263-21/usr/share/muni12:10:023
3181722995248,3cyclictest3213388-21kworker/u8:1+flush-179:008:10:172
3181721995247,3cyclictest3368154-21latency_hist10:10:011
34663242510,1chrt3466318-21snmp_wanswitch.11:45:030
3181722995147,3cyclictest3352135-21kworker/u8:2+flush-179:010:15:202
3181722995146,4cyclictest3296242-21/usr/share/muni09:00:102
3181722995146,4cyclictest247561-21ThreadPoolForeg10:55:342
3181723995045,3cyclictest3466239-21snmp_wlanswitch11:45:013
3181723995036,5cyclictest3513031-21/usr/share/muni12:30:143
3181722995047,2cyclictest3310988-21kworker/u8:0+events_unbound09:20:012
3181722995047,2cyclictest3213388-21kworker/u8:1+flush-179:007:45:172
3181722995047,2cyclictest3202786-21kworker/u8:3+events_unbound07:35:192
3181718995046,3cyclictest3352135-21kworker/u8:2+events_unbound10:05:360
3181718995043,5cyclictest3326311-31munin-html09:25:520
3181722994946,2cyclictest3436121-21kworker/u8:4+flush-179:011:30:262
3181722994946,2cyclictest3352135-21kworker/u8:2+flush-179:010:05:202
3181721994946,2cyclictest3429730-21kworker/u8:1+flush-179:011:15:321
3181723994842,4cyclictest3306186-21latency_hist09:10:013
3181723994840,8cyclictest3238826-21kworker/u8:2+flush-179:009:10:193
3181723994833,2cyclictest2024959-1kworker/3:2H+kblockd10:16:173
3181722994845,2cyclictest3149856-21kworker/u8:4+flush-179:008:02:252
3181722994844,3cyclictest3271382-21apt-get08:35:152
3181718994844,3cyclictest3442003-21kworker/u8:2+flush-179:011:35:070
3181718994842,4cyclictest3208436-21/usr/share/muni07:35:160
3181722994744,2cyclictest3300714-21kworker/u8:4+flush-179:009:25:422
3181722994743,3cyclictest3436121-21kworker/u8:4+events_unbound11:40:292
3181722994743,3cyclictest3213388-21kworker/u8:1+flush-179:008:25:202
3181722994742,4cyclictest3384208-21/usr/share/muni10:25:052
3181722994732,14cyclictest3434879-21kworker/2:1+pm11:20:042
318172299471,2cyclictest3357557-31munin-html09:55:452
3181718994741,5cyclictest3518179-21/usr/share/muni12:35:150
3181718994741,5cyclictest3518179-21/usr/share/muni12:35:150
3181723994634,11cyclictest2024959-1kworker/3:2H+kblockd11:44:083
3181722994643,2cyclictest3466449-21kworker/u8:1+events_unbound12:20:362
3181722994643,2cyclictest3455154-21kworker/u8:0+flush-179:011:45:142
3181722994642,3cyclictest3481151-21kworker/u8:0+flush-179:012:10:292
3181722994641,4cyclictest3404680-21CacheThread_Blo10:45:012
3181721994641,4cyclictest3254735-21/usr/share/muni08:20:021
3181718994640,4cyclictest3409387-21kworker/u8:3+events_unbound11:00:000
3181723994537,6cyclictest3409950-21/usr/share/muni10:50:013
3181722994542,2cyclictest3238826-21kworker/u8:2+events_unbound08:17:032
3181722994541,3cyclictest3238826-21kworker/u8:2+flush-179:009:10:052
3181722994541,3cyclictest3238826-21kworker/u8:2+events_unbound08:49:062
3181722994538,5cyclictest247516-21Chrome_ChildIOT09:40:142
3181718994540,3cyclictest3300714-21kworker/u8:4+flush-179:009:55:200
3181723994441,2cyclictest2024959-1kworker/3:2H+kblockd12:17:103
3181723994439,3cyclictest3269359-31munin-html08:30:393
3181722994440,3cyclictest3429730-21kworker/u8:1+flush-179:011:15:192
3181721994441,2cyclictest3197712-21kworker/u8:2+flush-179:007:25:291
3181721994441,2cyclictest3197712-21kworker/u8:2+flush-179:007:25:291
3181718994439,4cyclictest3239346-21/usr/share/muni08:05:090
3181718994436,5cyclictest3249530-21/usr/share/muni08:15:030
318172299438,33cyclictest0-21swapper/207:10:162
3181722994340,2cyclictest3192407-21kworker/u8:0+flush-179:007:30:092
3181722994339,3cyclictest3197712-21kworker/u8:2+flush-179:007:25:342
3181722994339,3cyclictest3197712-21kworker/u8:2+flush-179:007:25:342
3181722994335,3cyclictest3502145-21kworker/u8:0+flush-179:012:30:212
3181723994236,4cyclictest3259838-21/usr/share/muni08:25:153
3181723994236,4cyclictest3212512-21munin-limits07:35:333
3181722994239,2cyclictest3502145-21kworker/u8:0+events_unbound12:35:202
3181722994239,2cyclictest3502145-21kworker/u8:0+events_unbound12:35:202
3181722994239,2cyclictest3393925-21kworker/u8:4+events_unbound10:40:192
3181722994239,2cyclictest3300714-21kworker/u8:4+events_unbound09:48:042
3181722994238,3cyclictest3367299-21kworker/u8:0+events_unbound10:35:302
3181722994228,13cyclictest3042270-1kworker/2:2H+kblockd10:34:592
3181721994236,4cyclictest3481765-21/usr/share/muni12:00:151
3181721994236,4cyclictest3192889-21munin-update07:20:331
3181721994233,6cyclictest3301351-21/usr/share/muni09:05:041
3181718994236,5cyclictest3310988-21kworker/u8:0+flush-179:009:20:310
3181723994138,2cyclictest3192407-21kworker/u8:0+flush-179:007:17:023
3181723994126,14cyclictest1260-21snmpd11:21:323
3181722994137,3cyclictest3393925-21kworker/u8:4+flush-179:010:50:152
3181722994137,3cyclictest3383641-21kworker/u8:2+events_unbound11:01:072
3181722994137,3cyclictest3367299-21kworker/u8:0+events_unbound10:20:092
3181722994137,3cyclictest3300714-21kworker/u8:4+events_unbound09:39:182
3181722994136,4cyclictest3486859-21/usr/share/muni12:05:122
3181722994136,3cyclictest3442003-21kworker/u8:2+flush-179:011:39:392
3181722994113,26cyclictest3233601-31munin-html07:55:472
3181721994137,3cyclictest3213388-21kworker/u8:1+flush-179:008:54:541
3181718994137,3cyclictest3367820-21kworker/u8:1+events_unbound10:25:180
3181718994135,4cyclictest247560-21ThreadPoolForeg08:10:360
3181718994134,5cyclictest3347597-21/usr/share/muni09:50:160
318172399406,33cyclictest0-21swapper/311:19:493
3181723994036,3cyclictest3149856-21kworker/u8:4+flush-179:008:05:253
3181723994035,4cyclictest3285791-21munin-update08:50:333
3181723994023,16cyclictest1260-21snmpd07:40:153
3181722994036,3cyclictest3481151-21kworker/u8:0+flush-179:012:00:282
3181722994036,2cyclictest3415315-21kworker/2:0+pm11:10:592
3181722994035,4cyclictest3480727-31munin-html11:55:342
3181721994036,3cyclictest3383641-21kworker/u8:2+flush-179:010:35:471
3181721994033,6cyclictest2788236-1kworker/1:2H+kblockd07:40:301
3181721994033,5cyclictest3414154-31munin-html10:50:341
3181718994035,3cyclictest3032143-1kworker/0:2H+kblockd07:45:120
3181718994033,5cyclictest3492276-21/usr/share/muni12:10:030
3181718994033,5cyclictest3445745-21/usr/share/muni11:25:130
3181723993935,3cyclictest3269441-21kworker/3:0+pm09:40:273
3181723993935,2cyclictest3376675-21kworker/3:1+pm10:41:343
3181723993935,2cyclictest2024959-1kworker/3:2H+kblockd11:50:143
3181723993935,2cyclictest2024959-1kworker/3:2H+kblockd10:06:143
3181723993933,4cyclictest3415052-21/usr/share/muni10:55:093
3181723993933,4cyclictest3389299-21/usr/share/muni10:30:213
3181723993922,15cyclictest2024959-1kworker/3:2H+kblockd09:50:013
3181722993937,2cyclictest3496946-21kworker/u8:5+flush-179:012:16:042
3181722993937,1cyclictest3434879-21kworker/2:1+pm11:50:032
3181722993937,1cyclictest3110895-21kworker/2:1+pm08:24:012
3181722993936,2cyclictest3486271-21kworker/2:2+pm12:25:092
3181722993936,2cyclictest3355273-21kworker/2:0+pm10:10:052
3181722993936,2cyclictest3170568-21kworker/u8:2+flush-179:007:15:162
3181722993936,2cyclictest3110895-21kworker/2:1+pm08:57:292
3181722993936,2cyclictest3110895-21kworker/2:1+pm08:57:292
3181722993935,3cyclictest3300714-21kworker/u8:4+flush-179:010:00:372
3181722993935,3cyclictest3238826-21kworker/u8:2+flush-179:008:50:132
3181722993935,3cyclictest3110895-21kworker/2:1+pm07:40:042
3181722993934,4cyclictest3310988-21kworker/u8:0+flush-179:009:20:322
3181721993935,3cyclictest3326580-21kworker/u8:1+flush-179:009:50:531
3181718993936,1cyclictest3032143-1kworker/0:2H+kblockd10:31:140
3181718993924,14cyclictest3192407-21kworker/u8:0+flush-179:007:40:550
3181723993835,2cyclictest3376675-21kworker/3:1+pm11:38:283
3181723993834,3cyclictest2024959-1kworker/3:2H+kblockd10:02:343
3181723993833,3cyclictest2024959-1kworker/3:2H+kblockd08:45:023
3181722993836,1cyclictest3110895-21kworker/2:1+pm08:06:032
3181722993834,2cyclictest3042270-1kworker/2:2H+kblockd08:44:532
3181722993834,2cyclictest3042270-1kworker/2:2H+kblockd08:44:532
3181721993836,1cyclictest0-21swapper/111:26:391
3181721993835,2cyclictest2788236-1kworker/1:2H+kblockd07:11:461
3181721993834,3cyclictest3274156-21munin-limits08:35:341
3181721993834,3cyclictest2788236-1kworker/1:2H+kblockd08:40:051
3181721993834,3cyclictest2788236-1kworker/1:2H+kblockd08:40:051
3181721993834,2cyclictest3332181-1kworker/1:0H+kblockd11:04:401
3181718993836,1cyclictest3326347-21kworker/0:1+pm09:33:440
3181718993835,2cyclictest3326347-21kworker/0:1+pm11:34:290
3181718993834,3cyclictest3436121-21kworker/u8:4+flush-179:011:40:150
3181718993834,2cyclictest3032143-1kworker/0:2H+kblockd10:10:040
3181718993832,5cyclictest3471478-21/usr/share/muni11:50:140
3181723993735,1cyclictest3476312-21kworker/3:2+pm12:08:203
3181723993734,2cyclictest3376675-21kworker/3:1+pm11:30:293
3181723993734,2cyclictest3269441-21kworker/3:0+pm09:03:493
3181723993734,2cyclictest2024959-1kworker/3:2H+kblockd09:55:193
3181723993734,2cyclictest2024959-1kworker/3:2H+kblockd07:32:243
3181723993734,2cyclictest2024959-1kworker/3:2H+kblockd07:26:583
3181723993734,2cyclictest2024959-1kworker/3:2H+kblockd07:26:583
3181723993733,3cyclictest3481151-21kworker/u8:0+flush-179:012:01:463
3181723993733,3cyclictest2024959-1kworker/3:2H+kblockd12:21:183
3181723993733,2cyclictest2024959-1kworker/3:2H+kblockd09:26:093
3181723993730,5cyclictest2024959-1kworker/3:2H+kblockd11:10:143
3181723993726,10cyclictest1260-21snmpd08:57:323
3181723993726,10cyclictest1260-21snmpd08:57:323
3181722993735,1cyclictest3110895-21kworker/2:1+pm08:32:152
3181721993735,1cyclictest3481414-21kworker/1:1+pm12:12:581
3181721993734,2cyclictest3332181-1kworker/1:0H+kblockd10:42:321
3181721993734,2cyclictest3332181-1kworker/1:0H+kblockd09:37:331
3181721993734,2cyclictest2788236-1kworker/1:2H+kblockd07:35:041
3181721993734,1cyclictest3332181-1kworker/1:0H+kblockd09:57:441
3181721993733,2cyclictest3332181-1kworker/1:0H+kblockd11:50:041
3181721993733,2cyclictest2788236-1kworker/1:2H+kblockd09:16:091
3181721993732,3cyclictest3332181-1kworker/1:0H+kblockd12:05:001
3181721993730,5cyclictest3225429-21apt-get07:50:161
3181721993729,6cyclictest3306434-21/usr/share/muni09:10:021
3181718993734,2cyclictest3213388-21kworker/u8:1+flush-179:008:50:300
3181718993734,2cyclictest3032143-1kworker/0:2H+kblockd12:15:230
3181718993734,2cyclictest3032143-1kworker/0:2H+kblockd11:13:240
3181718993734,2cyclictest3032143-1kworker/0:2H+kblockd07:50:030
3181718993733,3cyclictest3181884-21/usr/share/muni07:10:160
3181718993733,3cyclictest3032143-1kworker/0:2H+kblockd07:25:000
3181718993731,4cyclictest3481490-21latency_hist12:00:010
318171899370,36cyclictest247563-13Compositor08:55:100
318171899370,36cyclictest247563-13Compositor08:55:100
3181723993634,1cyclictest2024959-1kworker/3:2H+kblockd11:04:243
3181723993633,2cyclictest3269441-21kworker/3:0+pm09:22:143
3181723993633,2cyclictest2024959-1kworker/3:2H+kblockd11:09:313
3181723993633,2cyclictest2024959-1kworker/3:2H+kblockd09:33:193
3181723993633,2cyclictest2024959-1kworker/3:2H+kblockd07:10:133
3181723993629,6cyclictest1260-21snmpd11:27:063
3181723993623,12cyclictest1260-21snmpd07:56:303
3181722993633,2cyclictest3110895-21kworker/2:1+pm07:23:342
3181721993634,1cyclictest3481414-21kworker/1:1+pm12:34:541
3181721993633,2cyclictest3332181-1kworker/1:0H+kblockd11:48:171
3181721993633,2cyclictest2788236-1kworker/1:2H+kblockd09:31:331
3181721993632,3cyclictest3383641-21kworker/u8:2+flush-179:010:34:491
3181721993631,4cyclictest3368064-21kworker/1:2+pm10:19:481
3181721993631,4cyclictest3323150-21apt-get09:25:151
3181721993630,4cyclictest3502775-21/usr/share/muni12:20:031
3181721993624,11cyclictest271rcuc/111:35:091
3181718993634,1cyclictest3326347-21kworker/0:1+pm10:49:270
3181718993634,1cyclictest3199410-21kworker/0:0+pm08:49:140
3181718993633,2cyclictest3032143-1kworker/0:2H+kblockd09:40:090
3181718993633,2cyclictest3032143-1kworker/0:2H+kblockd08:43:490
3181718993633,2cyclictest3032143-1kworker/0:2H+kblockd08:43:490
3181718993632,2cyclictest3032143-1kworker/0:2H+kblockd12:07:330
3181718993632,2cyclictest3032143-1kworker/0:2H+kblockd09:45:180
3181718993631,4cyclictest3311196-21kworker/u8:1+flush-179:009:15:010
3181718993626,9cyclictest3199410-21kworker/0:0+pm08:24:240
3181723993533,1cyclictest2024959-1kworker/3:2H+kblockd11:59:443
3181723993533,1cyclictest2024959-1kworker/3:2H+kblockd08:40:533
3181723993533,1cyclictest2024959-1kworker/3:2H+kblockd08:40:533
3181723993532,2cyclictest2024959-1kworker/3:2H+kblockd09:45:063
3181723993531,2cyclictest2024959-1kworker/3:2H+kblockd10:14:243
3181723993524,9cyclictest3256035-21apt-get08:20:143
3181721993533,1cyclictest3332181-1kworker/1:0H+kblockd09:41:391
3181721993533,1cyclictest2788236-1kworker/1:2H+kblockd08:34:391
3181721993532,2cyclictest2788236-1kworker/1:2H+kblockd08:59:071
3181721993532,2cyclictest2788236-1kworker/1:2H+kblockd08:59:071
3181721993532,2cyclictest2788236-1kworker/1:2H+kblockd08:28:461
3181721993532,2cyclictest2788236-1kworker/1:2H+kblockd08:10:171
3181721993531,3cyclictest3332181-1kworker/1:0H+kblockd10:00:571
3181721993531,3cyclictest2788236-1kworker/1:2H+kblockd07:55:041
3181721993528,5cyclictest3218773-21/usr/share/muni07:45:081
318172199350,2cyclictest3249871-21ntpq08:15:071
3181718993533,1cyclictest3032143-1kworker/0:2H+kblockd07:15:210
3181718993532,2cyclictest3032143-1kworker/0:2H+kblockd10:15:060
3181718993532,2cyclictest3032143-1kworker/0:2H+kblockd07:32:140
3181718993531,3cyclictest3149856-21kworker/u8:4+flush-179:007:55:210
3181718993531,3cyclictest3032143-1kworker/0:2H+kblockd11:01:140
3181718993531,2cyclictest3032143-1kworker/0:2H+kblockd09:14:240
3181718993530,4cyclictest3202786-21kworker/u8:3+flush-179:007:28:130
3181718993530,4cyclictest3202786-21kworker/u8:3+flush-179:007:28:120
3181723993432,1cyclictest2024959-1kworker/3:2H+kblockd10:37:493
3181723993432,1cyclictest2024959-1kworker/3:2H+kblockd08:39:593
3181723993431,2cyclictest2024959-1kworker/3:2H+kblockd12:36:443
3181723993431,2cyclictest2024959-1kworker/3:2H+kblockd12:36:443
3181723993431,2cyclictest2024959-1kworker/3:2H+kblockd09:35:143
3181723993430,2cyclictest1260-21snmpd09:15:563
3181723993426,7cyclictest2024959-1kworker/3:2H+kblockd08:10:313
3181723993426,7cyclictest0-21swapper/308:04:303
3181721993432,1cyclictest3332181-1kworker/1:0H+kblockd11:33:411
3181721993432,1cyclictest3332181-1kworker/1:0H+kblockd10:47:451
3181721993432,1cyclictest3134985-21kworker/1:3+pm09:22:491
3181721993431,2cyclictest3332181-1kworker/1:0H+kblockd11:20:041
3181721993431,2cyclictest2788236-1kworker/1:2H+kblockd08:46:331
3181721993430,2cyclictest0-21swapper/109:45:021
3181718993431,2cyclictest3032143-1kworker/0:2H+kblockd12:01:310
3181718993431,2cyclictest3032143-1kworker/0:2H+kblockd10:54:290
3181718993431,2cyclictest3032143-1kworker/0:2H+kblockd08:31:370
3181718993431,2cyclictest247447-21ChromeDriver00:55:190
3181718993430,2cyclictest3032143-1kworker/0:2H+kblockd12:27:580
3181723993330,2cyclictest2024959-1kworker/3:2H+kblockd10:26:393
3181723993330,2cyclictest1260-21snmpd07:20:593
3181721993331,1cyclictest3332181-1kworker/1:0H+kblockd10:10:161
3181721993330,2cyclictest3332181-1kworker/1:0H+kblockd10:28:041
3181721993330,2cyclictest2788236-1kworker/1:2H+kblockd07:34:291
3181721993330,2cyclictest2788236-1kworker/1:2H+kblockd07:17:071
3181721993330,2cyclictest1260-21snmpd11:55:361
3181721993329,2cyclictest1260-21snmpd11:08:201
3181718993331,1cyclictest3326347-21kworker/0:1+pm10:43:030
3181718993330,2cyclictest3290684-21kworker/0:2+pm09:03:530
3181718993330,2cyclictest3032143-1kworker/0:2H+kblockd12:20:580
3181718993330,2cyclictest3032143-1kworker/0:2H+kblockd11:05:340
3181718993330,2cyclictest3032143-1kworker/0:2H+kblockd10:20:490
3181718993329,3cyclictest3367299-21kworker/u8:0+events_unbound10:35:060
3181718993329,3cyclictest3032143-1kworker/0:2H+kblockd09:05:140
3181718993328,4cyclictest3513023-21/usr/share/muni12:30:060
3181718993328,3cyclictest3358208-21/usr/share/muni10:00:140
3181718993326,5cyclictest3440650-21/usr/share/muni11:20:090
3181718993317,15cyclictest3429730-21kworker/u8:1+events_unbound11:19:430
3181723993230,1cyclictest2024959-1kworker/3:2H+kblockd12:26:123
3181723993229,2cyclictest2024959-1kworker/3:2H+kblockd10:47:493
3181723993228,2cyclictest2024959-1kworker/3:2H+kblockd10:20:193
3181721993230,1cyclictest2788236-1kworker/1:2H+kblockd09:03:361
3181721993230,1cyclictest1260-21snmpd10:56:111
3181721993229,2cyclictest1260-21snmpd08:02:551
3181718993230,1cyclictest3032143-1kworker/0:2H+kblockd08:25:590
3181718993229,2cyclictest3032143-1kworker/0:2H+kblockd08:00:160
3181723993129,1cyclictest2024959-1kworker/3:2H+kblockd07:51:213
3181721993128,2cyclictest3497556-21snmp_areswitch.12:15:031
3181721993124,5cyclictest3461053-21/usr/share/muni11:40:011
3181721993111,18cyclictest247557-21chrome08:05:151
3181723993030,0cyclictest1260-21snmpd08:15:223
3181721993028,1cyclictest3332181-1kworker/1:0H+kblockd10:20:141
3181721993028,1cyclictest1260-21snmpd12:35:071
3181721993028,1cyclictest1260-21snmpd12:35:071
3181718993030,0cyclictest1260-21snmpd08:39:160
3181721992927,1cyclictest3332181-1kworker/1:0H+kblockd12:29:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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