You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-24 - 23:54

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #3, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack3slot6s.osadl.org (updated Fri Jul 24, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6975210998,6sleep20-21swapper/207:09:132
6784210993,11sleep00-21swapper/007:06:470
6762210887,16sleep30-21swapper/307:06:303
6811210688,13sleep10-21swapper/107:07:081
27962920,0sleep00-21swapper/010:28:170
80592760,1sleep28053-21ssh11:06:032
88622730,0sleep20-21swapper/210:00:462
34972730,1sleep33495-21ssh09:55:223
85112710,0sleep2301ktimersoftd/209:27:192
234792570,5sleep1706499cyclictest09:42:531
7063993113,16cyclictest0-21swapper/007:45:110
212752270,1sleep30-21swapper/309:40:193
706499260,18cyclictest0-21swapper/110:50:121
706699257,17cyclictest0-21swapper/311:00:123
706699249,13cyclictest11073-21sendmail-mta11:43:333
287242240,1sleep30-21swapper/311:27:563
7065992320,2cyclictest22923-21kworker/u8:208:10:032
7065992320,2cyclictest21411-21kworker/u8:010:47:042
7065992320,2cyclictest16912-21kworker/u8:109:12:052
7065992320,2cyclictest12367-21kworker/u8:012:19:052
7065992317,4cyclictest0-21swapper/211:50:122
15732230,0sleep30-21swapper/308:15:163
7066992219,2cyclictest16912-21kworker/u8:109:29:043
706599223,2cyclictest23080-21diskmemload11:47:042
7065992219,2cyclictest27938-21kworker/u8:011:44:002
7066992118,2cyclictest6836-21kworker/u8:112:06:043
7066992118,2cyclictest466-21kworker/u8:110:02:043
7066992118,2cyclictest28441-21kworker/u8:312:04:053
7066992118,2cyclictest16196-21kworker/u8:210:12:043
7066992118,2cyclictest12654-21kworker/u8:211:50:033
7066992117,3cyclictest18146-21kworker/u8:212:28:063
706599210,16cyclictest0-21swapper/209:39:042
706499216,3cyclictest0-21swapper/111:55:181
706499211,10cyclictest29078-21cpuspeed_turbos12:35:131
706499210,2cyclictest0-21swapper/109:34:151
706499210,19cyclictest0-21swapper/110:25:121
7066992017,2cyclictest466-21kworker/u8:110:41:043
7066992017,2cyclictest466-21kworker/u8:110:27:043
7066992017,2cyclictest21411-21kworker/u8:010:52:013
7066992017,2cyclictest16912-21kworker/u8:109:30:043
706699201,2cyclictest0-21swapper/311:47:043
706699200,15cyclictest0-21swapper/311:55:043
7065992017,2cyclictest8346-21kworker/u8:107:18:042
7065992017,2cyclictest6836-21kworker/u8:112:22:012
7065992017,2cyclictest6826-21kworker/u8:108:45:042
7065992017,2cyclictest466-21kworker/u8:110:39:032
7065992017,2cyclictest466-21kworker/u8:110:13:032
7065992017,2cyclictest31944-21kworker/u8:111:02:032
7065992017,2cyclictest27017-21kworker/u8:210:54:042
7065992017,2cyclictest22923-21kworker/u8:208:09:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional