You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-13 - 19:19

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 #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 Apr 13, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30196372283262,6sleep50-21swapper/519:06:095
30196372283262,6sleep50-21swapper/519:06:085
30197852276214,16sleep00-21swapper/019:08:040
30197852276214,16sleep00-21swapper/019:08:040
30197292264210,18sleep40-21swapper/419:07:214
30197292264210,18sleep40-21swapper/419:07:204
30196692259219,32sleep60-21swapper/619:06:346
30196692259219,32sleep60-21swapper/619:06:346
30197972248206,18sleep30-21swapper/319:08:173
30197972248206,18sleep30-21swapper/319:08:163
30197622248206,32sleep10-21swapper/119:07:491
30197622248206,32sleep10-21swapper/119:07:491
30196002248206,32sleep70-21swapper/719:05:467
30196002248206,32sleep70-21swapper/719:05:467
30198752242216,17sleep20-21swapper/219:09:192
30198752242216,17sleep20-21swapper/219:09:192
30888432890,0sleep20-21swapper/221:10:242
3020201993732,1cyclictest0-21swapper/220:54:492
3020221993430,1cyclictest0-21swapper/620:54:486
3020226993330,2cyclictest3085163-21hddtemp_smartct21:05:157
3020193993326,3cyclictest1391-21snmpd20:54:480
302022699307,22cyclictest0-21swapper/720:12:587
3020226992924,2cyclictest3102102-21ntpq21:35:207
302019399290,25cyclictest0-21swapper/022:14:270
3020205992721,5cyclictest1391-21snmpd21:36:403
3020197992726,1cyclictest0-21swapper/121:05:151
302019799270,25cyclictest0-21swapper/121:50:531
302019399270,25cyclictest0-21swapper/021:20:280
302019399270,1cyclictest0-21swapper/023:40:320
302019399270,1cyclictest0-21swapper/022:17:230
3020221992622,3cyclictest1391-21snmpd22:48:046
302021399260,22cyclictest0-21swapper/522:11:095
3020205992621,4cyclictest1391-21snmpd21:05:393
3020205992621,4cyclictest1391-21snmpd00:31:383
3020205992620,5cyclictest1391-21snmpd23:00:493
3020205992619,6cyclictest1391-21snmpd21:45:293
302019799260,24cyclictest0-21swapper/119:20:151
3020226992521,3cyclictest3197842-21cat00:30:177
3020226992521,3cyclictest3192353-21cat00:20:187
3020226992521,3cyclictest3167629-21awk23:35:167
3020226992521,3cyclictest1391-21snmpd19:22:017
302022699250,1cyclictest0-21swapper/720:58:067
3020213992521,3cyclictest1391-21snmpd22:47:285
3020209992524,1cyclictest0-21swapper/423:30:164
3020209992521,3cyclictest1391-21snmpd22:21:184
3020209992521,3cyclictest1391-21snmpd22:14:114
3020209992521,3cyclictest1391-21snmpd20:50:314
3020209992518,5cyclictest0-21swapper/420:06:394
3020205992520,4cyclictest1391-21snmpd19:59:113
3020205992519,5cyclictest1391-21snmpd19:42:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional