You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-11 - 23:29

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 #0, slot #3

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 rack0slot3s.osadl.org (updated Mon May 11, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22479202261215,16sleep70-21swapper/719:07:007
22479312260215,36sleep00-21swapper/019:07:090
22480382259236,15sleep50-21swapper/519:08:355
22480042258216,32sleep40-21swapper/419:08:114
22479762258217,17sleep30-21swapper/319:07:453
22480112248210,28sleep20-21swapper/219:08:162
22479282246220,17sleep60-21swapper/619:07:076
22480972241215,18sleep10-21swapper/119:09:271
2248457993432,2cyclictest1391-21snmpd20:18:214
2248448993130,1cyclictest0-21swapper/223:05:492
224844899308,20cyclictest0-21swapper/222:10:162
224847199290,29cyclictest0-21swapper/720:40:197
224846299275,1cyclictest0-21swapper/523:40:585
224845799270,1cyclictest0-21swapper/422:50:144
2248448992726,1cyclictest0-21swapper/223:39:312
224844499270,25cyclictest0-21swapper/122:40:081
224844499270,25cyclictest0-21swapper/120:05:421
224843999270,25cyclictest0-21swapper/023:06:380
2248471992623,2cyclictest1385-21arpwatch00:36:017
2248471992622,3cyclictest1385-21arpwatch22:40:497
2248471992621,4cyclictest2254361-21chrt19:17:587
224847199260,24cyclictest0-21swapper/722:47:057
224847199260,22cyclictest0-21swapper/720:17:057
224847199260,1cyclictest0-21swapper/719:40:157
2248466992622,3cyclictest1391-21snmpd22:52:396
2248466992621,4cyclictest2398609-21cat23:40:176
2248462992622,3cyclictest1391-21snmpd00:38:515
224846299260,23cyclictest0-21swapper/523:25:165
2248457992622,3cyclictest2404114-21cat23:50:174
2248457992622,3cyclictest2404114-21cat23:50:174
224845799260,24cyclictest0-21swapper/419:35:164
224844899260,22cyclictest0-21swapper/223:51:232
224844899260,22cyclictest0-21swapper/223:51:222
224844899260,22cyclictest0-21swapper/220:56:552
224844499260,24cyclictest0-21swapper/123:37:071
224844499260,24cyclictest0-21swapper/122:06:541
224844499260,24cyclictest0-21swapper/121:52:401
224844499260,22cyclictest0-21swapper/120:01:291
224844499260,22cyclictest0-21swapper/100:36:001
2248439992622,3cyclictest1391-21snmpd19:10:280
2248439992622,3cyclictest1391-21snmpd00:12:350
224843999260,22cyclictest0-21swapper/021:10:140
2248471992521,3cyclictest2743-21gnome-shell21:51:597
2248471992521,3cyclictest1391-21snmpd22:22:207
2248471992521,3cyclictest1391-21snmpd21:46:167
2248471992518,5cyclictest523-21systemd-journal22:05:147
224847199250,24cyclictest1385-21arpwatch00:11:497
224847199250,23cyclictest0-21swapper/722:53:137
224847199250,23cyclictest0-21swapper/721:27:277
224847199250,23cyclictest0-21swapper/721:18:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional