You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-11 - 20:07

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 #5, 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
  
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 rack5slot3s.osadl.org (updated Wed Mar 11, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82602208134,46sleep10-21swapper/107:06:001
85232182107,24sleep30-21swapper/307:09:243
83892181107,25sleep00-21swapper/007:07:400
8241217695,23sleep20-21swapper/207:05:452
2773421580,3sleep3867299cyclictest07:50:163
41182590,2sleep10-21swapper/109:25:001
257962580,3sleep325795-21sendmail_mailqu11:25:233
136912500,4sleep339-21rcuc/311:00:113
198432460,2sleep230-21rcuc/207:30:252
867299431,33cyclictest0-21swapper/309:27:083
867299431,21cyclictest0-21swapper/311:20:463
867299421,21cyclictest16819-21hddtemp_smartct07:25:173
8672994027,8cyclictest0-21swapper/308:23:383
171422400,2sleep20-21swapper/212:20:162
8672993926,3cyclictest0-21swapper/308:09:223
867299390,24cyclictest0-21swapper/310:03:233
867299361,18cyclictest23136-21expr12:35:123
867299351,28cyclictest0-21swapper/311:50:293
867299351,27cyclictest0-21swapper/311:11:063
867299351,27cyclictest0-21swapper/309:47:063
867299351,21cyclictest0-21swapper/310:46:523
867299351,20cyclictest0-21swapper/309:24:063
867299341,26cyclictest0-21swapper/310:29:513
867299341,22cyclictest0-21swapper/307:35:353
867299331,30cyclictest0-21swapper/307:56:383
867299331,19cyclictest0-21swapper/310:53:303
867299331,19cyclictest0-21swapper/310:53:303
867299331,18cyclictest0-21swapper/311:18:163
867299330,21cyclictest0-21swapper/312:33:143
867299321,22cyclictest0-21swapper/308:35:093
867299321,21cyclictest0-21swapper/307:44:383
867299321,21cyclictest0-21swapper/307:32:513
867299321,20cyclictest0-21swapper/309:44:123
867299321,20cyclictest0-21swapper/309:44:123
867299321,19cyclictest0-21swapper/312:16:103
867299321,19cyclictest0-21swapper/312:12:303
867299321,13cyclictest0-21swapper/310:24:533
867299320,21cyclictest0-21swapper/308:31:423
867299320,21cyclictest0-21swapper/308:31:413
867299320,17cyclictest0-21swapper/308:26:123
865699328,11cyclictest12136-21awk08:30:010
867299311,20cyclictest0-21swapper/312:20:483
867299311,20cyclictest0-21swapper/307:15:363
867299311,19cyclictest0-21swapper/309:03:463
867299311,19cyclictest0-21swapper/308:12:023
867299310,20cyclictest0-21swapper/310:16:533
867299301,24cyclictest0-21swapper/310:05:533
867299301,20cyclictest0-21swapper/309:15:503
867299301,19cyclictest0-21swapper/310:13:553
867299300,19cyclictest0-21swapper/309:57:003
867299300,13cyclictest0-21swapper/312:05:163
865699304,12cyclictest20322-21awk07:35:010
8656993011,16cyclictest21535-21munin-run10:05:010
867299291,18cyclictest0-21swapper/312:01:023
867299291,18cyclictest0-21swapper/312:01:023
867299291,18cyclictest0-21swapper/309:37:223
867299291,13cyclictest0-21swapper/309:11:543
867299290,21cyclictest0-21swapper/309:54:463
867299290,19cyclictest0-21swapper/308:01:403
867299290,13cyclictest0-21swapper/311:55:513
867299281,25cyclictest0-21swapper/310:55:523
867299281,19cyclictest0-21swapper/311:45:573
867299281,19cyclictest0-21swapper/311:05:423
867299281,17cyclictest0-21swapper/311:33:463
867299281,12cyclictest0-21swapper/310:43:303
867299280,11cyclictest29705-21diskmemload11:35:373
865699281,23cyclictest11-21rcuc/007:50:190
865699281,21cyclictest0-21swapper/012:04:200
865699281,21cyclictest0-21swapper/012:04:200
867299271,18cyclictest0-21swapper/312:26:343
867299271,13cyclictest0-21swapper/310:35:403
867299271,12cyclictest0-21swapper/309:33:363
867299271,11cyclictest0-21swapper/311:40:093
867299271,11cyclictest0-21swapper/307:22:513
867299271,11cyclictest0-21swapper/307:22:513
866299271,12cyclictest0-21swapper/109:40:161
866299271,12cyclictest0-21swapper/109:40:161
865699271,2cyclictest0-21swapper/009:10:330
865699271,13cyclictest16164-21munin-run12:20:000
865699271,13cyclictest11767-21munin-run12:10:000
865699271,10cyclictest9224-21sed09:35:150
867299260,10cyclictest0-21swapper/307:47:223
8667992612,9cyclictest0-21swapper/212:00:272
8667992612,9cyclictest0-21swapper/212:00:272
865699261,22cyclictest27135-21needreboot10:15:180
865699261,21cyclictest14331-21fschecks_count07:20:150
865699261,21cyclictest14331-21fschecks_count07:20:150
867299250,17cyclictest0-21swapper/308:45:373
866799255,9cyclictest26839-21cat11:30:102
866799255,10cyclictest780-21in:imjournal08:40:212
8667992511,3cyclictest15391-21seq11:03:052
865699253,10cyclictest28117-21kworker/0:007:15:150
865699251,21cyclictest81ktimersoftd/010:55:270
865699251,21cyclictest0-21swapper/011:17:430
865699251,21cyclictest0-21swapper/010:08:000
865699251,12cyclictest17748-21munin-run11:10:010
865699251,11cyclictest6973-21/usr/sbin/munin10:45:120
865699251,11cyclictest27535-21cat11:30:160
865699251,11cyclictest12963-21/usr/sbin/munin09:45:210
867299248,9cyclictest0-21swapper/307:11:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional