You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-10 - 02:29

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 #3, 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
  TQ-Systems
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 rack3slot3s.osadl.org (updated Sat Jan 10, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396145622090,2sleep23961455-21unin-run22:25:002
3753961213364,63sleep30-21swapper/319:05:263
396064821180,2sleep03960650-21find22:20:210
375422128452,10sleep10-21swapper/119:08:361
375404528365,10sleep20-21swapper/219:06:212
375399527455,13sleep00-21swapper/019:05:430
39717202320,3sleep23971724-21unixbench_singl22:30:262
3754445992825,1cyclictest0-21swapper/300:10:003
375444599249,10cyclictest3882200-21taskset21:06:013
3754445992421,1cyclictest0-21swapper/320:00:013
3754445992219,1cyclictest0-21swapper/323:00:003
3754445992218,2cyclictest0-21swapper/322:25:183
375444599221,17cyclictest4030193-21sleep23:30:003
375444599221,17cyclictest3876966-21taskset21:01:013
39341192211,5sleep23934166-21ntpq21:55:192
3754445992017,2cyclictest0-21swapper/320:05:003
3754445992017,1cyclictest0-21swapper/319:50:153
3754445992016,2cyclictest0-21swapper/320:25:003
375444599199,7cyclictest3956723-21taskset22:20:123
3754445991916,1cyclictest0-21swapper/322:45:013
3754445991916,1cyclictest0-21swapper/322:05:213
3754445991916,1cyclictest0-21swapper/319:35:213
3754445991915,2cyclictest0-21swapper/323:15:233
3754445991915,2cyclictest0-21swapper/300:40:003
375444599191,13cyclictest3798483-21sleep19:50:003
375444599182,10cyclictest3983457-21taskset22:45:133
3754445991815,1cyclictest0-21swapper/323:35:133
3754445991815,1cyclictest0-21swapper/322:00:103
3754445991815,1cyclictest0-21swapper/321:30:183
375444599181,12cyclictest4051463-21chrt23:50:103
375444599175,1cyclictest0-21swapper/321:50:133
375444599172,10cyclictest4072492-21taskset00:10:103
3754445991714,1cyclictest0-21swapper/323:20:113
375444599171,13cyclictest3913892-21turbostat21:40:003
375444599171,13cyclictest0-21swapper/320:25:113
375444599171,13cyclictest0-21swapper/300:00:113
375444599171,12cyclictest3851198-21turbostat20:40:003
375444599171,11cyclictest3867095-21chrt20:55:113
375444599171,10cyclictest3754617-21taskset19:10:033
375444599170,15cyclictest0-21swapper/320:05:123
375444599170,13cyclictest0-21swapper/321:15:183
37599892161,7sleep13761313-21kthreadcore19:15:021
375444599165,8cyclictest4056442-21turbostat23:59:553
375444599162,7cyclictest3956224-21taskset22:20:003
375444599161,9cyclictest3882774-21taskset21:10:063
375444599161,9cyclictest3856642-21taskset20:45:013
3754445991614,1cyclictest0-21swapper/322:50:173
3754445991613,1cyclictest0-21swapper/321:55:173
3754445991613,1cyclictest0-21swapper/320:19:563
3754445991612,2cyclictest0-21swapper/323:10:153
375444599161,12cyclictest3977365-21turbostat22:40:003
375444599161,12cyclictest0-21swapper/323:40:183
375444599161,12cyclictest0-21swapper/322:30:183
375444599161,11cyclictest3866829-21turbostat20:55:013
375444599160,14cyclictest0-21swapper/321:25:153
375444599160,13cyclictest0-21swapper/323:45:243
375444599160,13cyclictest0-21swapper/320:40:233
375444599160,13cyclictest0-21swapper/320:10:193
375444599160,13cyclictest0-21swapper/300:20:123
375444599160,10cyclictest4093271-21taskset00:26:333
375444599160,10cyclictest4082409-21taskset00:16:313
38918872150,10sleep13891976-21ntpq21:15:191
38147442151,4sleep13814952-21expr20:05:121
375444599151,9cyclictest4035237-21taskset23:33:023
375444599151,9cyclictest3897061-21taskset21:20:163
375444599151,9cyclictest3766877-21taskset19:19:563
3754445991512,1cyclictest0-21swapper/323:05:253
375444599151,10cyclictest3945963-21chrt22:10:103
375444599150,12cyclictest0-21swapper/321:40:103
375444599150,12cyclictest0-21swapper/319:30:003
375444599150,12cyclictest0-21swapper/300:30:123
40072482141,8sleep24008012-21sed23:05:172
38449342141,8sleep13840935-21/usr/sbin/munin20:30:221
3754445991411,2cyclictest0-21swapper/321:45:123
3754445991411,1cyclictest0-21swapper/323:00:143
3754445991411,1cyclictest0-21swapper/319:30:193
375444599140,12cyclictest0-21swapper/320:30:133
375444599140,12cyclictest0-21swapper/319:40:153
375444599140,12cyclictest0-21swapper/319:20:153
40924472131,3sleep24092535-21ntpq00:25:172
40299012130,1sleep10-21swapper/123:26:411
40291432131,8sleep04029191-21modprobe23:25:190
39837402131,2sleep10-21swapper/122:45:161
39423442131,7sleep13944118-21cut22:05:161
38972022131,8sleep03897248-21/usr/sbin/munin21:20:180
40947112121,7sleep04096382-21cut00:30:160
40237592121,6sleep04023900-21ntpq23:20:180
40041142122,5sleep04004132-21apt-get23:05:120
39738962121,7sleep03975657-21kthreadcore22:35:170
39196982121,5sleep13919822-21perl21:45:121
38885722121,7sleep23889390-21kthreadcore21:15:152
37937792121,7sleep23793912-21gltestperf19:45:142
37893502121,7sleep13790328-21kthreadcore19:40:151
37821472121,7sleep23777775-21/usr/sbin/munin19:30:262
37777972121,7sleep03777952-21cstates19:30:120
40776982110,1sleep20-21swapper/200:15:112
40519872111,6sleep24052445-21kthreadcore23:50:142
40320792111,6sleep14033843-21kthreadcore23:30:171
39619552111,5sleep23962168-21hddtemp_smartct22:25:132
39551062111,5sleep13955157-21ntpq22:15:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional