You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-26 - 21:31

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 #f, slot #7

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
  
Click here to display the system's profile data.
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.

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 rackfslot7s.osadl.org (updated Tue May 26, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395015299407019,4045cyclictest3980938-21kworker/2:1+events20:47:172
395014499337714,3358cyclictest4032173-21kworker/0:0+events23:30:130
395014499335814,3340cyclictest4009521-21kworker/0:2+events22:20:010
395014499331616,3296cyclictest4045090-21kworker/0:1+events00:05:190
395014499321216,3191cyclictest3975970-21kworker/0:0+events20:50:180
395014499309810,3083cyclictest3975970-21kworker/0:0+events20:55:180
395014999301515,2995cyclictest3985356-21kworker/1:2+events21:00:181
395014499294513,2928cyclictest4042192-21kworker/0:2+events23:55:200
395014499292012,2905cyclictest3995218-21kworker/0:0+events21:35:210
395014499290414,2886cyclictest4026017-21kworker/0:2+events23:05:150
395014499287714,2858cyclictest3961788-21kworker/0:1+events19:50:130
395015499286811,2852cyclictest3993749-21kworker/3:2+events21:40:123
395015299280513,2787cyclictest3987018-21kworker/2:1+events21:09:472
395015499279813,2781cyclictest3985476-21kworker/3:2+events21:01:053
395015299276311,2745cyclictest3968279-21kworker/2:1+events20:06:422
395015299274313,2726cyclictest3957191-21kworker/2:2+events19:30:252
395014499273413,2717cyclictest4026172-21kworker/0:3+events23:10:150
395015499271511,2702cyclictest3976154-21kworker/3:2+events20:30:033
395014499270213,2687cyclictest3985386-21kworker/0:2+events21:05:170
39501549927008,2688cyclictest4004993-21kworker/3:1+events22:05:173
395015299270011,2686cyclictest4043677-21kworker/2:1+events00:00:212
395015499269513,2678cyclictest3963507-21kworker/3:2+events19:55:143
395014499269511,2680cyclictest3967955-21kworker/0:1+events20:26:110
395014499269412,2678cyclictest4045090-21kworker/0:1+events00:20:140
395014499268912,2673cyclictest3963388-21kworker/0:0+events19:56:010
395015499268613,2669cyclictest3955406-21kworker/3:0+events19:40:173
395015499268313,2668cyclictest3955406-21kworker/3:0+events19:36:283
395015499268213,2665cyclictest3977843-21kworker/3:1+events20:53:463
395015299268210,2668cyclictest3972389-21kworker/2:0+events20:23:552
395015299267913,2662cyclictest3961726-21kworker/2:2+events19:45:122
395014499267812,2662cyclictest4000283-21kworker/0:2+events22:00:170
395015499267413,2657cyclictest4046827-21kworker/3:0+events00:08:463
395015299267312,2657cyclictest3963329-21kworker/2:0+events20:02:032
395014499266913,2652cyclictest3980850-21kworker/0:2+events20:46:550
395015299266513,2648cyclictest4009552-21kworker/2:2+events22:15:292
395014499266512,2649cyclictest3979225-21kworker/0:1+events20:40:520
395014499266512,2649cyclictest3972772-21kworker/0:2+events20:21:380
395014499266412,2648cyclictest3975970-21kworker/0:0+events20:38:090
395014499266313,2646cyclictest4019462-21kworker/0:1+events23:03:440
395015299266212,2646cyclictest3969972-21kworker/2:2+events20:13:372
395014499266213,2645cyclictest4007922-21kworker/0:0+events22:14:200
395014499266211,2647cyclictest3960126-21kworker/0:0+events19:38:460
395014499266113,2645cyclictest3927666-21kworker/0:1+events19:23:530
395014499266111,2646cyclictest3957273-21kworker/0:3+events19:31:340
395014499266013,2643cyclictest4035317-21kworker/0:1+events23:47:430
395014499266012,2644cyclictest4013249-21kworker/0:3+events22:40:490
395014499265912,2643cyclictest4019462-21kworker/0:1+events22:55:250
395015299265513,2639cyclictest3953546-21kworker/2:1+events19:22:222
39501499926547,2642cyclictest3998599-21kworker/1:1+events22:46:361
395015299265213,2635cyclictest4022885-21kworker/2:0+events22:57:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional