You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-18 - 12:33
OSADL QA Farm

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 system in rack #e, slot #6

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 rackeslot6.osadl.org (updated Sat Apr 18, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
98915899108102,4cyclictest990684-21kworker/u8:2+events_unbound20:15:230
98915899104100,3cyclictest1051706-21kworker/u8:2+events_unbound22:35:240
989158999990,6cyclictest1006575-21latency_hist20:05:020
989158999690,4cyclictest1063375-21kworker/u8:2+events_unbound23:20:230
989158999186,4cyclictest990684-21kworker/u8:2+events_unbound19:55:230
989158999085,4cyclictest990684-21kworker/u8:2+events_unbound19:30:230
989158999085,4cyclictest1068133-21kworker/u8:0+events_unbound23:40:240
989158998780,5cyclictest1014788-21latency_hist20:30:020
989158998778,8cyclictest986982-21kworker/u8:1+events_unbound19:15:230
989161998476,6cyclictest1094161-21latency_hist00:35:011
989161998170,8cyclictest1213033-21systemd-journal23:05:001
989158998174,5cyclictest1081094-21latency_hist23:55:000
989158998075,4cyclictest1037113-21kworker/u8:2+events_unbound21:50:250
989158998066,11cyclictest1082712-40mandb00:00:010
989161997960,17cyclictest0-21swapper/120:02:581
989158997969,4cyclictest990684-21kworker/u8:2+events_unbound20:10:240
989158997873,4cyclictest1033938-21kworker/u8:3+events_unbound21:45:230
989158997868,4cyclictest1033938-21kworker/u8:3+events_unbound22:25:240
989158997868,3cyclictest1027529-21kworker/u8:2+events_unbound21:22:230
989158997864,11cyclictest1213033-21systemd-journal20:35:000
989158997772,4cyclictest1072918-21kworker/u8:3+events_unbound00:00:240
989161997660,12cyclictest1081129-21kworker/u8:1+flush-179:000:30:001
989158997671,4cyclictest1055093-21kworker/u8:1+events_unbound22:50:250
989161997568,5cyclictest1055093-21kworker/u8:1+flush-179:022:40:001
989158997570,4cyclictest1021191-21kworker/u8:1+flush-179:020:50:240
989161997362,9cyclictest1082712-40mandb00:00:001
989158997267,4cyclictest986982-21kworker/u8:1+events_unbound19:25:250
989158997166,4cyclictest1021191-21kworker/u8:1+flush-179:021:04:240
989158997165,4cyclictest1038709-21true21:45:010
989158997162,6cyclictest1028067-21diskstats21:10:140
989161997046,6cyclictest1213033-21systemd-journal20:11:221
989158997065,4cyclictest1033938-21kworker/u8:3+flush-179:022:11:090
989158997061,3cyclictest1027529-21kworker/u8:2+events_unbound21:15:250
989161996963,4cyclictest1040242-21kworker/u8:0+events_unbound22:00:001
989161996958,8cyclictest1213033-21systemd-journal19:52:221
989158996964,4cyclictest990100-21kworker/u8:0+events_unbound19:23:240
989158996964,4cyclictest1092546-21kworker/u8:2+events_unbound00:33:260
989158996960,3cyclictest1005021-21kworker/u8:3+events_unbound20:40:220
989158996959,4cyclictest1013236-21kworker/u8:1+events_unbound20:35:220
989158996863,4cyclictest998656-21kworker/u8:1+flush-179:019:50:240
989158996863,4cyclictest714-21Xorg22:58:590
989161996754,9cyclictest1045063-21apt-get22:05:001
989158996763,3cyclictest1081129-21kworker/u8:1+events_unbound00:22:220
989158996758,4cyclictest1078159-21kworker/u8:2+events_unbound00:08:320
989158996757,4cyclictest1040242-21kworker/u8:0+events_unbound22:04:230
989158996662,3cyclictest1084232-21kworker/u8:0+events_unbound00:25:240
989158996661,4cyclictest990684-21kworker/u8:2+events_unbound19:43:240
989158996661,4cyclictest990684-21kworker/u8:2+events_unbound19:43:240
989158996660,5cyclictest1040242-21kworker/u8:0+events_unbound22:21:220
989161996555,7cyclictest1213033-21systemd-journal21:38:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional