You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-11 - 11:19

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 #e, slot #5

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot5s.osadl.org (updated Mon May 11, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
549992920,8cyclictest6562-21sed00:12:000
54999290,1cyclictest29067-21ssh00:32:180
562992624,1cyclictest17715-21sh00:22:042
549992619,6cyclictest13123-21ssh00:18:220
54999260,21cyclictest27550-21ssh22:07:300
54999260,1cyclictest1128-21sh00:07:210
54999260,1cyclictest0-21swapper/022:36:560
54999260,0cyclictest26267-21diskmemload23:02:300
56899250,24cyclictest26267-21diskmemload23:36:423
56299250,24cyclictest26267-21diskmemload23:49:492
56299250,24cyclictest0-21swapper/221:18:582
56299250,1cyclictest0-21swapper/223:33:482
55699250,24cyclictest9997-21ssh21:24:101
55699250,24cyclictest2222-21idleruntime-cro20:20:001
549992522,3cyclictest26267-21diskmemload21:56:250
549992521,4cyclictest26267-21diskmemload23:40:580
549992520,4cyclictest26763-21ssh23:33:180
549992520,4cyclictest26267-21diskmemload21:41:090
549992520,4cyclictest26267-21diskmemload21:26:570
549992520,4cyclictest0-21swapper/021:31:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional