You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-24 - 10:21

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 #7, slot #7

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 50 highest latencies:
System rack7slot7s.osadl.org (updated Mon Aug 24, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
793421360,0sleep00-21swapper/022:39:060
2793629481,9sleep00-21swapper/019:09:260
2786529164,9sleep20-21swapper/219:08:322
2775028568,13sleep10-21swapper/119:07:021
2774228168,9sleep30-21swapper/319:06:563
33802500,0sleep20-21swapper/223:33:582
240942480,0sleep30-21swapper/322:10:043
2809199312,28cyclictest11785-21ssh23:20:000
2809199283,20cyclictest20657-21diskmemload21:10:130
2809199280,1cyclictest0-21swapper/000:28:550
2809199280,15cyclictest20657-21diskmemload22:25:480
2809199270,26cyclictest0-21swapper/021:20:150
2809699260,26cyclictest0-21swapper/100:14:151
2809199260,25cyclictest0-21swapper/021:45:130
2809199260,1cyclictest0-21swapper/000:00:110
2809199260,0cyclictest0-21swapper/023:56:330
2810299250,1cyclictest0-21swapper/223:36:012
2809199252,19cyclictest20657-21diskmemload22:05:590
2809199251,23cyclictest0-21swapper/023:00:420
2809199250,23cyclictest12029-21runrttasks23:39:130
2809699240,1cyclictest0-21swapper/122:06:191
2809199242,19cyclictest20657-21diskmemload00:06:460
2809199241,22cyclictest20657-21diskmemload21:58:040
2809199241,21cyclictest0-21swapper/022:40:170
2809199240,23cyclictest0-21swapper/022:55:250
2809199240,1cyclictest0-21swapper/023:46:470
2809199240,1cyclictest0-21swapper/023:06:260
2810299230,22cyclictest0-21swapper/220:28:132
2809199232,20cyclictest1142-21runrttasks23:29:490
2809199231,17cyclictest20657-21diskmemload22:50:480
2809199230,22cyclictest0-21swapper/022:10:210
2809199230,20cyclictest25181-21chrt22:30:090
2809199230,0cyclictest0-21swapper/023:32:550
28096992222,0cyclictest0-21swapper/123:01:001
2809199222,19cyclictest20657-21diskmemload23:41:380
2809199222,19cyclictest20657-21diskmemload23:41:380
2809199222,19cyclictest20657-21diskmemload22:45:100
2809199221,17cyclictest20657-21diskmemload22:16:010
2809199221,17cyclictest20657-21diskmemload21:29:270
2809199220,21cyclictest0-21swapper/020:40:010
2809199220,18cyclictest20657-21diskmemload00:15:030
120932220,1sleep012094-21sh22:02:230
2809699212,4cyclictest27096-21date23:10:001
2809699210,1cyclictest0-21swapper/100:05:141
2809199212,18cyclictest0-21swapper/019:15:250
2809199211,18cyclictest20657-21diskmemload21:31:140
2809199211,17cyclictest0-21swapper/020:10:130
2809199210,1cyclictest0-21swapper/000:34:500
28105992018,2cyclictest17749-21kworker/3:121:34:533
28105992017,2cyclictest17749-21kworker/3:122:17:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional