You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-11 - 02:34

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 100 highest latencies:
System rack8slot4s.osadl.org (updated Wed Mar 11, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31064772244179,52sleep20-21swapper/219:06:502
31064522243198,29sleep40-21swapper/419:06:284
31066962228165,21sleep50-21swapper/519:09:585
31064842222184,25sleep00-21swapper/019:06:550
31065162220164,44sleep30-21swapper/319:07:233
31064812215175,26sleep60-21swapper/619:06:536
31065592212180,21sleep10-21swapper/119:08:011
31065002211180,20sleep70-21swapper/719:07:107
3106936992921,4cyclictest1060-21cron23:35:002
310693299260,25cyclictest0-21swapper/121:25:121
310693299260,22cyclictest3116113-21munin-run19:25:011
3106951992423,1cyclictest3202889-21apt21:55:017
3106947992423,1cyclictest3266709-21apt-get23:45:126
3106941992422,1cyclictest0-21swapper/423:44:594
310694199240,23cyclictest0-21swapper/423:00:114
3106939992422,1cyclictest3194500-21apt-get21:40:133
3106930992423,1cyclictest0-21swapper/022:35:120
310695199230,23cyclictest0-21swapper/723:20:007
3106947992322,1cyclictest0-21swapper/621:00:116
3106947992321,2cyclictest3295139-21munin-run00:34:596
3106947992321,1cyclictest3243586-21apt-get23:05:136
310694799230,23cyclictest3298017-21idleruntime-cro00:40:006
310694799230,22cyclictest3131071-21apt-get19:50:116
310694799230,1cyclictest0-21swapper/621:35:016
3106945992321,1cyclictest0-21swapper/523:04:595
310694599230,22cyclictest0-21swapper/521:30:015
310694599230,22cyclictest0-21swapper/519:45:105
310694199230,23cyclictest0-21swapper/420:45:014
310694199230,23cyclictest0-21swapper/420:45:014
310694199230,22cyclictest0-21swapper/420:40:004
310694199230,22cyclictest0-21swapper/420:40:004
3106939992321,1cyclictest3185660-21apt-get21:25:103
3106939992321,1cyclictest3139219-21turbostat20:05:003
3106939992321,1cyclictest3136351-21turbostat20:00:003
310693999230,22cyclictest3110806-21apt-get19:15:123
310693699230,22cyclictest0-21swapper/220:35:132
310693699230,22cyclictest0-21swapper/220:35:122
310693699230,22cyclictest0-21swapper/220:20:112
3106932992322,1cyclictest0-21swapper/122:25:101
3106932992321,2cyclictest0-21swapper/119:30:101
310693299230,22cyclictest3295129-21latency_hist00:35:001
310693299230,22cyclictest3125107-21apt-get19:40:121
310693299230,22cyclictest0-21swapper/122:20:111
310693299230,22cyclictest0-21swapper/121:05:111
310693299230,1cyclictest0-21swapper/121:35:001
3106930992322,1cyclictest3107234-21apt-get19:10:120
3106930992319,3cyclictest3260570-21perf23:34:590
3106951992222,0cyclictest0-21swapper/722:30:107
3106951992221,1cyclictest0-21swapper/722:55:137
310695199220,21cyclictest87-21ksoftirqd/720:55:127
310695199220,21cyclictest0-21swapper/720:00:127
310695199220,21cyclictest0-21swapper/719:45:107
310695199220,1cyclictest3142076-21munin-run20:10:007
310695199220,0cyclictest0-21swapper/722:00:117
310695199220,0cyclictest0-21swapper/720:10:117
3106947992221,1cyclictest0-21swapper/623:55:126
3106947992220,1cyclictest3139643-21apt-get20:05:126
310694799220,21cyclictest0-21swapper/620:45:106
310694799220,21cyclictest0-21swapper/620:00:136
310694799220,1cyclictest3176664-21munin-run21:10:006
3106945992221,1cyclictest3248873-21perf23:15:005
310694599220,21cyclictest0-21swapper/523:40:115
310694599220,21cyclictest0-21swapper/521:45:105
310694599220,1cyclictest3225756-21perf22:34:595
310694599220,0cyclictest0-21swapper/521:05:125
3106941992222,0cyclictest0-21swapper/420:25:104
3106941992220,2cyclictest363-21systemd-journal22:39:594
3106941992220,1cyclictest3260985-21apt-get23:35:124
310694199220,22cyclictest1060-21cron21:25:004
310694199220,21cyclictest3214739-21apt-get22:15:124
310694199220,21cyclictest0-21swapper/423:45:114
310694199220,21cyclictest0-21swapper/422:35:004
310694199220,21cyclictest0-21swapper/421:25:104
310694199220,21cyclictest0-21swapper/420:05:124
310694199220,21cyclictest0-21swapper/419:15:114
3106939992221,0cyclictest0-21swapper/319:25:113
3106939992220,2cyclictest3167848-21basename20:55:003
310693999220,21cyclictest0-21swapper/321:35:023
310693999220,1cyclictest3232156-21apt-get22:45:103
310693999220,1cyclictest3226431-21apt-get22:35:123
310693999220,1cyclictest3131071-21apt-get19:50:123
310693999220,1cyclictest0-21swapper/320:20:003
3106936992222,0cyclictest0-21swapper/221:40:122
3106936992221,0cyclictest0-21swapper/222:35:122
310693699220,21cyclictest3243586-21apt-get23:05:132
310693699220,21cyclictest0-21swapper/221:25:112
310693699220,21cyclictest0-21swapper/221:15:012
310693699220,21cyclictest0-21swapper/220:25:092
310693699220,21cyclictest0-21swapper/219:55:112
310693699220,1cyclictest3240732-21apt-get23:00:112
310693699220,1cyclictest3191629-21apt-get21:35:132
310693699220,1cyclictest3127557-21idleruntime-cro19:45:012
310693699220,1cyclictest0-21swapper/221:00:012
3106932992219,3cyclictest0-21swapper/121:15:131
310693299220,21cyclictest3275310-21apt-get00:00:131
310693299220,21cyclictest0-21swapper/121:00:011
310693299220,21cyclictest0-21swapper/120:20:131
310693299220,1cyclictest3286742-21apt-get00:20:111
3106930992220,1cyclictest0-21swapper/021:55:120
3106930992220,1cyclictest0-21swapper/019:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional