You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-04-02 - 08:27
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 50 highest latencies:
System rackbslot1.osadl.org (updated Tue Apr 01, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34694882207183,14sleep30-21swapper/307:09:453
34693012203179,14sleep10-21swapper/107:07:191
34692972197170,18sleep20-21swapper/207:07:162
34693952176153,14sleep00-21swapper/007:08:300
3469702996764,2cyclictest3605102-21kworker/u8:3+flush-179:009:45:010
3469702996259,2cyclictest3698861-21kworker/u8:0+events_unbound11:15:190
3469702996258,3cyclictest3698861-21kworker/u8:0+flush-179:011:30:010
3469702996258,3cyclictest3657612-21kworker/u8:1+flush-179:011:00:040
3469702996056,3cyclictest3606029-21ThreadPoolForeg07:45:020
3469702995956,2cyclictest3662676-21kworker/u8:3+flush-179:010:55:210
3469702995852,4cyclictest3480571-21/usr/share/muni07:20:050
3469702995652,2cyclictest3515204-21kworker/u8:3+events_unbound08:55:080
3469702995651,4cyclictest3560024-21/usr/share/muni08:40:160
3469702995651,4cyclictest3560024-21/usr/share/muni08:40:160
3469702995451,2cyclictest3485637-21kworker/u8:2+events_unbound07:30:360
3469702995450,3cyclictest3492748-21kworker/u8:1+flush-179:008:05:350
3469711995349,3cyclictest3619635-21kworker/u8:2+events_unbound09:55:123
3469708995349,3cyclictest3605429-21/usr/share/muni09:30:082
3469702995345,6cyclictest3650465-21/usr/share/muni10:20:110
3469711995240,11cyclictest3480999-21apt-get07:20:093
3469702995247,3cyclictest3569567-21kworker/u8:0+flush-179:009:15:350
3469706995144,5cyclictest3628061-21/usr/share/muni09:55:031
3469702995143,3cyclictest3614648-21kworker/u8:0+flush-179:010:00:160
3469708995044,4cyclictest3623187-21/usr/share/muni09:50:182
3469706995045,4cyclictest3469342-21kworker/u8:0+flush-179:007:15:341
3469706995045,3cyclictest3676166-21base6410:50:001
3469702995047,2cyclictest3515204-21kworker/u8:3+events_unbound09:10:070
3469702995044,4cyclictest3614648-21kworker/u8:0+flush-179:010:30:200
3469711994945,3cyclictest3704102-21munin-update11:20:343
3469708994947,1cyclictest3469343-21kworker/2:1+pm07:32:582
3469706994940,6cyclictest3597756-21/usr/share/muni09:20:141
3469706994940,6cyclictest3597756-21/usr/share/muni09:20:131
3469702994945,3cyclictest3619635-21kworker/u8:2+flush-179:009:50:190
346970299491,47cyclictest3606021-13VizCompositorTh11:55:120
3469708994845,2cyclictest3518851-21kworker/u8:4+flush-179:007:55:312
3469708994844,3cyclictest3662676-21kworker/u8:3+flush-179:010:55:242
3469708994835,12cyclictest3703362-21kworker/2:2+pm11:55:102
3469706994844,3cyclictest3596438-21kworker/u8:1+flush-179:009:15:431
3469706994842,4cyclictest3672972-21latency_hist10:45:011
3469702994844,2cyclictest3657612-21kworker/u8:1+flush-179:010:50:370
3469708994744,2cyclictest3698861-21kworker/u8:0+events_unbound11:31:582
3469708994743,3cyclictest3675589-21kworker/u8:2+events_unbound11:22:342
3469708994740,6cyclictest3451131-21ThreadPoolForeg12:38:282
3469708994733,13cyclictest3703362-21kworker/2:2+pm12:04:382
3469708994731,14cyclictest3534939-21kworker/2:0+pm08:35:042
3469706994741,3cyclictest3727236-21chrome11:45:011
3469702994744,2cyclictest3645134-21kworker/u8:2+flush-179:010:15:290
3469702994743,3cyclictest3544662-21kworker/u8:0+flush-179:008:35:300
3469702994742,4cyclictest3675589-21kworker/u8:2+flush-179:011:35:300
3469702994742,4cyclictest3451073-20chrome10:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional