You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-12 - 22:47

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 #8, slot #4

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 rack8slot4s.osadl.org (updated Fri Jun 12, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7036732243175,22sleep20-21swapper/207:07:162
7037132240178,19sleep40-21swapper/407:07:504
7035582238175,19sleep60-21swapper/607:05:356
7035802224187,24sleep10-21swapper/107:05:541
7037272219184,24sleep00-21swapper/007:08:020
7035642219185,22sleep30-21swapper/307:05:403
7035862214184,19sleep70-21swapper/707:06:007
7009962214182,20sleep50-21swapper/507:05:035
70407799319,4cyclictest0-21swapper/511:19:295
70407799308,4cyclictest0-21swapper/510:57:315
70407799297,4cyclictest0-21swapper/511:30:285
70407799297,4cyclictest0-21swapper/509:51:375
70407799297,4cyclictest0-21swapper/508:45:435
70407799297,4cyclictest0-21swapper/508:23:455
70407199291,22cyclictest0-21swapper/207:35:002
70407799286,4cyclictest0-21swapper/511:08:305
70407799286,4cyclictest0-21swapper/510:46:325
70407799286,4cyclictest0-21swapper/509:40:385
70407799286,4cyclictest0-21swapper/508:34:445
70407799286,4cyclictest0-21swapper/508:01:475
70407799286,4cyclictest0-21swapper/507:39:495
70407799286,4cyclictest0-21swapper/507:17:515
70407199280,22cyclictest840451-21sendmail11:00:002
704066992825,2cyclictest740181-21munin-plugin-st08:10:011
70408399272,1cyclictest0-21swapper/708:55:007
70408399270,26cyclictest722431-21munin-run07:40:017
70407799279,0cyclictest0-21swapper/508:12:465
70408399260,25cyclictest754912-21idleruntime-cro08:35:007
70407799269,0cyclictest0-21swapper/510:13:355
70407799268,0cyclictest0-21swapper/512:25:235
70407799268,0cyclictest0-21swapper/510:35:335
70407799263,22cyclictest711ktimers/509:05:125
70407299260,25cyclictest0-21swapper/311:20:183
70407199260,25cyclictest0-21swapper/212:00:112
70406699260,25cyclictest1-21systemd07:40:011
704083992522,3cyclictest3422186-21systemd-journal10:00:007
70407999250,3cyclictest812668-21grep10:10:166
70407999250,24cyclictest0-21swapper/611:20:186
70407799257,0cyclictest0-21swapper/511:52:265
70407799256,18cyclictest0-21swapper/509:29:395
70407499250,24cyclictest0-21swapper/409:15:134
704066992523,1cyclictest0-21swapper/110:00:181
704066992522,3cyclictest0-21swapper/110:25:101
704066992522,3cyclictest0-21swapper/110:25:101
704066992521,3cyclictest0-21swapper/110:05:121
70406699250,24cyclictest0-21swapper/107:40:031
70408399240,24cyclictest734290-21perf08:00:017
70408399240,24cyclictest0-21swapper/711:10:187
70407999240,23cyclictest872890-21latency_hist11:55:016
70407999240,23cyclictest708099-21apt-get07:15:136
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional