You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-11 - 06:30

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 #c, 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 - 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 rackcslot7s.osadl.org (updated Sun Jan 11, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1463372900,7sleep14497-21PK-Backend22:20:261
7637227645,22sleep10-21swapper/119:05:131
1547382750,4sleep20-21swapper/222:45:142
1736602740,8sleep10-21swapper/123:40:141
7773827254,13sleep00-21swapper/019:09:020
1479972660,3sleep10-21swapper/122:25:211
7775026540,19sleep20-21swapper/219:09:122
7634026542,14sleep30-21swapper/319:05:123
77958996117,12cyclictest438-20systemd-journal23:40:222
197399610,9rtkit-daemon1972-21rtkit-daemon19:49:471
197399600,9rtkit-daemon1972-21rtkit-daemon00:21:301
197399600,10rtkit-daemon1972-21rtkit-daemon20:20:570
77958995918,11cyclictest123011-21seq21:15:132
197399590,9rtkit-daemon1972-21rtkit-daemon23:24:421
1171712590,5sleep3411rcuc/320:59:553
77958995821,12cyclictest923-21dbus-daemon00:10:012
197399580,9rtkit-daemon1972-21rtkit-daemon23:47:441
197399580,9rtkit-daemon1972-21rtkit-daemon00:18:461
197399580,9rtkit-daemon1972-21rtkit-daemon00:18:461
197399580,8rtkit-daemon1972-21rtkit-daemon23:37:180
197399580,8rtkit-daemon1972-21rtkit-daemon19:15:210
77958995719,9cyclictest129833-21cut21:35:022
77958995619,11cyclictest923-21dbus-daemon22:15:022
77958995517,12cyclictest153235-21sed22:40:222
77958995516,11cyclictest132904-21seq21:43:032
77958995511,12cyclictest2751-21gdbus20:25:122
197399550,9rtkit-daemon1972-21rtkit-daemon20:16:430
197399550,8rtkit-daemon1972-21rtkit-daemon20:12:200
197399550,8rtkit-daemon1972-21rtkit-daemon19:28:480
197399550,8rtkit-daemon1972-21rtkit-daemon19:28:480
1241722550,5chrt0-21swapper/121:20:011
77958995419,8cyclictest99297-21grep20:05:292
77958995416,10cyclictest139987-21cron22:05:002
77958995416,10cyclictest135606-21sed21:50:212
77958995414,12cyclictest91526-21cat19:45:132
77958995412,12cyclictest1033-21gdbus20:20:002
77958995317,10cyclictest113146-21python320:45:312
77958995313,12cyclictest146369-21cat22:20:262
77958995313,11cyclictest111004-21cat20:40:202
77958995312,11cyclictest83681-21timerandwakeup19:20:282
197399530,8rtkit-daemon1972-21rtkit-daemon00:35:380
77958995213,11cyclictest85574-21seq19:25:552
77958995213,11cyclictest85574-21seq19:25:552
7795899521,13cyclictest119112-21cat21:05:022
77958995117,7cyclictest95536-21needreboot19:55:232
77958995112,10cyclictest137398-21missed_timers21:55:222
77958995111,10cyclictest147462-21grep22:25:132
197399510,8rtkit-daemon1972-21rtkit-daemon19:11:151
7795899509,11cyclictest78613-21if_err_enp2s019:10:192
77958995018,8cyclictest4497-21PK-Backend00:17:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional