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2025-11-19 - 17:30
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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 Wed Nov 19, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3219262217168,40sleep00-21swapper/007:09:130
3218402205181,14sleep10-21swapper/107:08:101
3199522198182,8sleep20-21swapper/207:05:262
3219242189160,20sleep30-21swapper/307:09:123
322153998326,53cyclictest483174-21chrome09:45:010
32215499627,13cyclictest483187-21exe09:45:011
322154996258,2cyclictest359218-21/usr/share/muni07:45:021
322154996257,3cyclictest338431-21munin-update07:25:351
322160996157,3cyclictest560031-21kworker/u8:0+flush-179:011:15:103
322159996052,6cyclictest394888-21latency_hist08:20:012
322160995753,2cyclictest457340-21kworker/u8:0+flush-179:009:25:223
322159995752,4cyclictest597673-21apt-get11:35:142
322159995751,4cyclictest581107-21/usr/share/muni11:20:202
322153995744,7cyclictest611964-21/usr/share/muni11:50:170
322154995551,2cyclictest421595-21snmp_areswitch.08:45:021
5504292540,1chrt550425-21snmp_areswitch.10:50:012
322159995449,4cyclictest394499-21kworker/u8:1+flush-179:008:55:312
322153995445,7cyclictest3125687-21ThreadPoolForeg08:25:360
322154995347,4cyclictest580598-21kworker/u8:2+flush-179:012:02:161
322153995236,15cyclictest3125688-21Chrome_ChildIOT10:24:250
322153995228,20cyclictest1260-21snmpd11:04:260
322159995146,4cyclictest477786-21kworker/u8:3+flush-179:009:55:252
322159995134,5cyclictest3125725-21ThreadPoolForeg08:00:102
322154995145,5cyclictest3125724-21ThreadPoolForeg11:05:001
322159995043,3cyclictest394499-21kworker/u8:1+flush-179:009:20:402
322160994945,3cyclictest446798-21kworker/u8:3+flush-179:009:15:083
322159994946,2cyclictest342910-21kworker/2:2+pm07:49:382
322153994945,3cyclictest642877-21kworker/u8:0+flush-179:012:25:370
322159994844,3cyclictest467227-21kworker/u8:2+flush-179:009:50:182
322159994844,3cyclictest321722-21kworker/u8:3+flush-179:007:30:472
322159994843,4cyclictest399998-21latency_hist08:25:002
322159994842,4cyclictest534604-21latency_hist10:35:002
322154994842,4cyclictest389711-21munin-update08:15:341
322160994742,4cyclictest437060-21/usr/share/muni09:00:143
322160994741,5cyclictest354019-21/usr/share/muni07:40:153
322160994741,4cyclictest391265-21ntpq08:15:173
322159994738,3cyclictest523571-21kworker/u8:2+events_unbound10:25:112
32215499472,44cyclictest348354-21kworker/u8:0+efi_rts_wq08:58:091
322153994743,3cyclictest476997-31munin-html09:35:350
322153994738,8cyclictest545128-21CacheThread_Blo10:45:010
322160994642,3cyclictest580598-21kworker/u8:2+flush-179:011:45:373
322160994640,5cyclictest3125725-21ThreadPoolForeg11:25:003
322159994642,3cyclictest321722-21kworker/u8:3+flush-179:007:43:222
322159994641,4cyclictest462640-21/usr/share/muni09:25:192
322159994641,3cyclictest560031-21kworker/u8:0+flush-179:011:25:112
322160994540,4cyclictest523571-21kworker/u8:2+events_unbound10:50:353
322160994540,3cyclictest394499-21kworker/u8:1+flush-179:009:40:213
322159994540,4cyclictest519289-21latency_hist10:20:012
322159994540,3cyclictest410736-21cp08:35:012
322153994541,3cyclictest373527-21kworker/u8:2+flush-179:008:00:170
322153994535,7cyclictest311224-21kworker/0:2+pm07:46:340
322160994440,3cyclictest529135-21kworker/u8:4+flush-179:011:10:103
322160994440,3cyclictest373527-21kworker/u8:2+flush-179:008:00:303
322160994439,4cyclictest560031-21kworker/u8:0+flush-179:011:00:073
32216099442,42cyclictest348354-21kworker/u8:0+efi_rts_wq08:58:093
322159994440,3cyclictest580598-21kworker/u8:2+flush-179:012:05:102
322154994441,2cyclictest405757-1kworker/1:2H+kblockd11:15:001
322154994440,3cyclictest394499-21kworker/u8:1+flush-179:009:30:011
322154994438,4cyclictest539985-21/usr/share/muni10:40:051
322160994339,3cyclictest616764-21kworker/u8:1+flush-179:011:55:233
32216099430,2cyclictest3125709-13VizCompositorTh10:20:343
322159994340,2cyclictest580598-21kworker/u8:2+flush-179:012:30:152
322159994340,2cyclictest565131-21kworker/2:2+pm11:18:532
322159994338,4cyclictest442147-21/usr/share/muni09:05:172
322153994340,2cyclictest436793-21munin-update09:00:350
322153994339,3cyclictest431806-21cat08:55:010
322153994337,4cyclictest338671-21/usr/share/muni07:25:130
322153994325,12cyclictest3125708-13Chrome_ChildIOT08:47:110
322160994236,4cyclictest523571-21kworker/u8:2+flush-179:010:35:113
32215999424,5cyclictest3125709-13VizCompositorTh11:56:032
322159994240,1cyclictest565131-21kworker/2:2+pm11:53:282
322159994239,2cyclictest560031-21kworker/u8:0+events_unbound11:10:232
322159994237,4cyclictest348354-21kworker/u8:0+flush-179:008:26:202
322159994237,4cyclictest247560-21ThreadPoolForeg11:00:342
322159994219,22cyclictest619138-21kworker/u8:3+flush-179:012:14:132
322154994239,2cyclictest305905-21kworker/1:3+pm07:41:441
322154994236,4cyclictest503538-31munin-graph10:01:421
322154994235,5cyclictest247561-21ThreadPoolForeg08:34:391
322160994138,2cyclictest348354-21kworker/u8:0+flush-179:009:05:063
322160994138,2cyclictest260969-21kworker/u8:5+flush-179:007:20:103
322160994137,3cyclictest316108-21kworker/u8:2+events_unbound07:30:233
322160994136,4cyclictest483164-21ThreadPoolForeg09:45:013
322160994136,3cyclictest467227-21kworker/u8:2+flush-179:009:32:383
322159994137,3cyclictest594347-21kworker/u8:5+flush-179:012:20:192
322159994137,3cyclictest457340-21kworker/u8:0+flush-179:010:06:042
322159994136,4cyclictest348354-21kworker/u8:0+flush-179:008:52:442
322159994136,3cyclictest619138-21kworker/u8:3+flush-179:012:15:242
322159994136,3cyclictest619138-21kworker/u8:3+flush-179:012:15:242
322154994136,4cyclictest321722-21kworker/u8:3+flush-179:007:36:041
322153994135,5cyclictest453783-21ntpq09:15:170
322160994035,4cyclictest633172-21/usr/share/muni12:10:173
322160994035,4cyclictest611631-21kworker/u8:0+flush-179:011:50:193
322159994037,2cyclictest472288-21kworker/2:0+pm09:49:082
322159994037,2cyclictest410271-21kworker/2:0+pm08:37:322
322159994037,2cyclictest342910-21kworker/2:2+pm07:59:392
322159994036,3cyclictest383841-21munin-limits08:05:342
322159994035,4cyclictest348354-21kworker/u8:0+flush-179:009:00:372
32215999401,13cyclictest338045-31munin-html07:20:452
322154994033,5cyclictest596404-21/usr/share/muni11:35:021
322154994032,7cyclictest1885829-1kworker/1:1H+kblockd08:08:511
322153994037,2cyclictest294703-21kworker/u8:0+flush-179:007:10:150
322153994036,3cyclictest394499-21kworker/u8:1+flush-179:008:20:090
322153994034,5cyclictest247516-21Chrome_ChildIOT09:28:230
322160993937,1cyclictest555289-21kworker/3:2+pm10:59:433
322160993934,4cyclictest622895-21/usr/share/muni12:00:023
322160993934,4cyclictest369551-21/usr/share/muni07:55:193
322160993929,9cyclictest247545-13VizCompositorTh09:38:193
322159993938,1cyclictest250989-21kworker/2:2+pm07:14:342
322159993937,1cyclictest410271-21kworker/2:0+pm08:47:542
322159993936,2cyclictest565131-21kworker/2:2+pm11:34:042
322159993936,2cyclictest549848-21kworker/u8:3+flush-179:010:55:162
322159993936,2cyclictest529135-21kworker/u8:4+flush-179:011:40:192
322159993936,2cyclictest467227-21kworker/u8:2+flush-179:009:35:092
322159993936,2cyclictest410271-21kworker/2:0+pm08:42:552
322159993936,2cyclictest327849-21kworker/2:0+pm07:25:202
322159993935,3cyclictest523571-21kworker/u8:2+flush-179:010:35:062
322159993935,3cyclictest373527-21kworker/u8:2+flush-179:008:15:002
322159993935,3cyclictest260969-21kworker/u8:5+flush-179:007:19:332
322154993936,2cyclictest322310-21/usr/share/muni07:10:011
322154993933,5cyclictest405757-1kworker/1:2H+kblockd09:44:491
322154993933,4cyclictest534868-21/usr/share/muni10:35:041
322154993933,4cyclictest348354-21kworker/u8:0+flush-179:009:10:061
322153993937,2cyclictest503628-21kworker/u8:1+flush-179:010:10:340
322153993936,2cyclictest580598-21kworker/u8:2+flush-179:012:20:580
322153993936,2cyclictest572106-21kworker/0:2+pm11:38:500
322153993932,6cyclictest540116-21/usr/share/muni10:40:180
322153993919,19cyclictest3125624-21chromedriver08:19:430
322160993835,2cyclictest529135-21kworker/u8:4+flush-179:010:40:593
322160993834,3cyclictest98992-1kworker/3:2H+kblockd10:03:043
322160993834,3cyclictest394499-21kworker/u8:1+events_unbound09:20:343
322160993834,3cyclictest3125727-21ThreadPoolForeg08:14:253
322160993833,4cyclictest394499-21kworker/u8:1+flush-179:009:10:173
32215999389,16cyclictest3125629-21e21169fc69a4c6710:42:492
322159993836,1cyclictest651259-21kworker/2:2+pm12:39:002
322159993836,1cyclictest651259-21kworker/2:2+pm12:39:002
322159993836,1cyclictest565131-21kworker/2:2+pm12:00:012
322159993836,1cyclictest472288-21kworker/2:0+pm10:02:292
322159993835,2cyclictest565131-21kworker/2:2+pm11:09:192
322159993835,2cyclictest472288-21kworker/2:0+pm10:45:132
322159993835,2cyclictest472288-21kworker/2:0+pm10:20:342
322159993835,2cyclictest472288-21kworker/2:0+pm09:40:352
322159993835,2cyclictest436760-21kworker/2:2+pm09:30:332
322159993835,2cyclictest436760-21kworker/2:2+pm09:16:582
322159993835,2cyclictest342910-21kworker/2:2+pm07:38:112
322159993833,5cyclictest182328-1kworker/2:0H+kblockd10:13:342
322159993815,22cyclictest361ktimers/212:26:122
322154993834,3cyclictest457340-21kworker/u8:0+flush-179:009:20:391
322154993834,2cyclictest1885829-1kworker/1:1H+kblockd07:55:101
322154993833,4cyclictest441081-21munin-limits09:00:361
322154993832,4cyclictest247515-21ThreadPoolForeg12:20:341
322154993831,5cyclictest247560-21ThreadPoolForeg09:08:191
322153993835,2cyclictest394499-21kworker/u8:1+flush-179:008:32:040
322153993834,2cyclictest3942362-1kworker/0:1H+kblockd12:00:290
322153993834,2cyclictest3942362-1kworker/0:1H+kblockd07:15:020
322153993833,4cyclictest560031-21kworker/u8:0+flush-179:011:30:350
32215399380,37cyclictest3125684-21Chrome_DevTools11:55:220
322160993734,2cyclictest98992-1kworker/3:2H+kblockd12:25:163
322160993734,2cyclictest98992-1kworker/3:2H+kblockd11:28:243
322160993734,2cyclictest580598-21kworker/u8:2+flush-179:011:35:293
322160993733,3cyclictest348354-21kworker/u8:0+flush-179:008:35:133
322160993733,3cyclictest260969-21kworker/u8:5+flush-179:007:15:073
322160993733,2cyclictest98992-1kworker/3:2H+kblockd10:49:153
322160993733,2cyclictest98992-1kworker/3:2H+kblockd09:50:083
322160993732,3cyclictest601277-21munin-update11:40:353
322160993729,7cyclictest3125724-21ThreadPoolForeg08:20:163
322159993734,2cyclictest565131-21kworker/2:2+pm11:46:392
322159993732,4cyclictest365712-21ntpq07:50:152
32215999371,14cyclictest3125721-21chrome09:11:012
322154993734,2cyclictest405757-1kworker/1:2H+kblockd12:17:441
322154993734,2cyclictest405757-1kworker/1:2H+kblockd12:17:441
322154993734,2cyclictest405757-1kworker/1:2H+kblockd11:53:541
322154993734,2cyclictest405757-1kworker/1:2H+kblockd09:35:321
322154993733,3cyclictest477786-21kworker/u8:3+flush-179:009:50:351
322154993733,3cyclictest247561-21ThreadPoolForeg12:09:241
322154993733,3cyclictest1885829-1kworker/1:1H+kblockd08:22:361
322154993733,2cyclictest405757-1kworker/1:2H+kblockd09:55:151
322154993731,4cyclictest523571-21kworker/u8:2+flush-179:010:48:591
322153993734,2cyclictest532226-21kworker/0:0+pm11:07:290
322153993734,2cyclictest3942362-1kworker/0:1H+kblockd10:30:160
322153993734,2cyclictest3942362-1kworker/0:1H+kblockd09:44:090
322153993734,2cyclictest3942362-1kworker/0:1H+kblockd07:34:040
322153993733,3cyclictest99884-21rs:main0
322153993732,4cyclictest247560-21ThreadPoolForeg10:17:190
322153993731,4cyclictest472221-31munin-graph09:31:330
322160993633,2cyclictest98992-1kworker/3:2H+kblockd12:38:273
322160993633,2cyclictest98992-1kworker/3:2H+kblockd12:38:263
322160993632,3cyclictest529135-21kworker/u8:4+flush-179:011:08:253
322160993632,2cyclictest594347-21kworker/u8:5+flush-179:012:20:113
322160993630,5cyclictest421535-13Chrome_IOThread08:45:013
322160993629,5cyclictest247560-21ThreadPoolForeg08:05:143
322160993627,8cyclictest1260-21snmpd10:08:123
322154993634,1cyclictest405757-1kworker/1:2H+kblockd12:29:151
322154993633,2cyclictest405757-1kworker/1:2H+kblockd11:46:231
322154993633,2cyclictest405757-1kworker/1:2H+kblockd10:17:241
322154993633,2cyclictest405757-1kworker/1:2H+kblockd10:07:551
322154993633,2cyclictest405757-1kworker/1:2H+kblockd09:32:591
322154993632,3cyclictest549848-21kworker/u8:3+flush-179:010:50:371
32215499360,1cyclictest596170-21munin-update11:35:001
322153993634,1cyclictest532226-21kworker/0:0+pm10:52:380
322153993634,1cyclictest3942362-1kworker/0:1H+kblockd11:44:190
322153993633,2cyclictest3942362-1kworker/0:1H+kblockd12:36:090
322153993633,2cyclictest3942362-1kworker/0:1H+kblockd12:36:090
322153993633,2cyclictest3942362-1kworker/0:1H+kblockd08:05:060
322153993633,2cyclictest3942362-1kworker/0:1H+kblockd07:23:560
322153993626,9cyclictest3125684-21Chrome_DevTools08:12:130
322153993620,9cyclictest3125709-13VizCompositorTh08:35:290
322153993616,19cyclictest3125624-21chromedriver11:10:200
32215399361,34cyclictest3125709-13VizCompositorTh07:50:350
322160993533,1cyclictest1260-21snmpd08:51:153
322160993532,2cyclictest98992-1kworker/3:2H+kblockd11:30:323
322160993532,2cyclictest98992-1kworker/3:2H+kblockd10:31:143
322160993532,2cyclictest98992-1kworker/3:2H+kblockd10:14:083
322160993532,2cyclictest98992-1kworker/3:2H+kblockd07:29:193
322160993532,2cyclictest98992-1kworker/3:2H+kblockd07:13:403
322160993532,1cyclictest98992-1kworker/3:2H+kblockd07:36:083
322160993531,3cyclictest348354-21kworker/u8:0+flush-179:008:41:003
322160993530,4cyclictest247560-21ThreadPoolForeg12:09:143
322154993533,1cyclictest405757-1kworker/1:2H+kblockd10:11:161
322154993533,1cyclictest1885829-1kworker/1:1H+kblockd07:19:581
322154993532,2cyclictest405757-1kworker/1:2H+kblockd12:31:351
322154993532,2cyclictest405757-1kworker/1:2H+kblockd11:15:061
322154993532,2cyclictest405757-1kworker/1:2H+kblockd10:56:021
322154993532,2cyclictest1885829-1kworker/1:1H+kblockd08:01:551
322154993531,3cyclictest524405-21munin-update10:25:041
322154993531,3cyclictest373527-21kworker/u8:2+flush-179:008:14:101
322154993529,5cyclictest247561-21ThreadPoolForeg12:10:131
322153993532,2cyclictest3125627-21ChromeDriver00:55:190
322153993531,3cyclictest492957-21munin-limits09:50:350
322153993531,3cyclictest467227-21kworker/u8:2+flush-179:009:55:200
322153993526,8cyclictest3125721-21chrome12:14:400
322153993526,8cyclictest3125721-21chrome11:15:030
322153993526,8cyclictest3125708-13Chrome_ChildIOT11:49:050
322153993526,8cyclictest1260-21snmpd12:19:190
322153993526,8cyclictest1260-21snmpd12:19:190
322153993524,10cyclictest247560-21ThreadPoolForeg11:20:090
322153993522,12cyclictest416545-21apache_accesses08:40:050
322154993433,1cyclictest405757-1kworker/1:2H+kblockd08:39:511
322154993432,1cyclictest1885829-1kworker/1:1H+kblockd07:53:401
322154993426,6cyclictest519553-21/usr/share/muni10:20:031
322153993432,1cyclictest3942362-1kworker/0:1H+kblockd10:57:050
322153993431,2cyclictest457340-21kworker/u8:0+flush-179:010:01:490
322153993431,2cyclictest3942362-1kworker/0:1H+kblockd09:11:180
322153993431,2cyclictest3125708-13Chrome_ChildIOT07:35:230
322153993431,2cyclictest3125629-21e21169fc69a4c6711:28:470
322153993429,4cyclictest653666-21/usr/share/muni12:30:050
322153993425,8cyclictest3125709-13VizCompositorTh09:05:480
322153993411,21cyclictest3125724-21ThreadPoolForeg07:40:080
322160993332,1cyclictest98992-1kworker/3:2H+kblockd07:51:443
322160993331,1cyclictest410626-21munin-update08:35:013
322160993330,2cyclictest1260-21snmpd10:16:403
322160993330,2cyclictest105470-21isc-net-000010:25:133
322160993329,3cyclictest373527-21kworker/u8:2+flush-179:008:26:113
322154993331,1cyclictest405757-1kworker/1:2H+kblockd08:51:371
322154993330,2cyclictest405757-1kworker/1:2H+kblockd11:07:301
322154993330,2cyclictest405757-1kworker/1:2H+kblockd10:33:141
322154993329,3cyclictest405757-1kworker/1:2H+kblockd12:39:151
322154993329,3cyclictest405757-1kworker/1:2H+kblockd12:39:151
322154993329,2cyclictest1885829-1kworker/1:1H+kblockd08:27:351
322154993328,3cyclictest416393-21munin-node08:40:001
322153993331,1cyclictest1260-21snmpd10:27:280
322160993230,1cyclictest1260-21snmpd09:58:123
322160993228,3cyclictest648195-21kworker/u8:1+flush-179:012:30:323
322160993227,4cyclictest619138-21kworker/u8:3+flush-179:012:15:163
322160993227,4cyclictest619138-21kworker/u8:3+flush-179:012:15:163
322154993229,2cyclictest405757-1kworker/1:2H+kblockd11:28:341
322154993228,3cyclictest529135-21kworker/u8:4+flush-179:011:40:171
322153993231,1cyclictest359892-21kworker/0:0+pm07:59:320
322153993230,1cyclictest433239-21ntpq08:55:170
322153993229,2cyclictest3125627-21ChromeDriver00:55:190
322153993210,10cyclictest0-21swapper/009:21:320
322160993128,2cyclictest3125708-13Chrome_ChildIOT07:46:433
322154993127,3cyclictest333580-21/usr/share/muni07:20:031
322154993125,4cyclictest457267-21latency_hist09:20:011
32215499310,2cyclictest3125721-21chrome11:20:361
322154992926,2cyclictest3125721-21chrome07:34:101
322154992923,5cyclictest617345-21/usr/share/muni11:55:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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