You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-20 - 01:43
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional