You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-22 - 20:52

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 #7, 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 rack7slot7s.osadl.org (updated Mon Jun 22, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27351210184,13sleep00-21swapper/007:07:270
2731228465,15sleep10-21swapper/107:06:561
2725028269,9sleep20-21swapper/207:06:082
2725128168,9sleep30-21swapper/307:06:083
2764699331,31cyclictest0-21swapper/210:28:512
2764299290,26cyclictest0-21swapper/110:54:471
2764699250,25cyclictest0-21swapper/211:00:562
27642992524,1cyclictest0-21swapper/112:08:221
2764299250,3cyclictest0-21swapper/110:24:011
2764299241,21cyclictest7604-21cut09:40:161
2763999240,2cyclictest0-21swapper/012:33:000
2764699231,22cyclictest0-21swapper/210:14:282
2764299236,7cyclictest11961-21latency_hist11:20:001
27642992216,5cyclictest25-21ksoftirqd/111:10:271
2763999222,11cyclictest0-21swapper/009:45:120
2764999218,9cyclictest39-21ksoftirqd/310:40:123
2764699215,13cyclictest21711-21/usr/sbin/munin11:45:202
2764699210,1cyclictest0-21swapper/212:32:592
2764299210,2cyclictest0-21swapper/111:00:131
2764299202,1cyclictest9805-21apt-get07:40:121
2763999200,1cyclictest0-21swapper/009:50:130
2763999200,17cyclictest0-21swapper/010:27:590
27646991918,1cyclictest0-21swapper/209:11:552
27646991916,2cyclictest29764-21ssh11:10:272
2763999190,2cyclictest0-21swapper/009:39:550
2763999190,18cyclictest0-21swapper/011:35:530
27639991817,1cyclictest0-21swapper/010:52:560
2763999180,18cyclictest0-21swapper/011:44:480
2763999180,18cyclictest0-21swapper/011:44:470
2764999174,12cyclictest0-21swapper/311:42:283
2764999174,12cyclictest0-21swapper/311:42:273
27649991716,1cyclictest0-21swapper/311:23:533
2764999170,17cyclictest0-21swapper/309:42:343
27642991712,2cyclictest20653-21diskmemload10:01:451
2764299170,0cyclictest0-21swapper/111:43:121
2764299170,0cyclictest0-21swapper/111:43:111
2763999176,3cyclictest1142-21runrttasks10:41:190
2763999172,5cyclictest0-21swapper/010:30:130
2764699162,2cyclictest0-21swapper/209:25:472
27646991615,1cyclictest0-21swapper/212:15:142
27642991613,2cyclictest25-21ksoftirqd/109:56:451
27642991610,5cyclictest516-21gdbus08:25:231
2764299160,4cyclictest0-21swapper/108:35:141
2764299160,1cyclictest0-21swapper/111:50:471
2763999163,11cyclictest17370-21timerwakeupswit12:20:250
27639991612,3cyclictest13-21ksoftirqd/012:35:250
27639991612,1cyclictest13-21ksoftirqd/010:13:240
2763999160,1cyclictest0-21swapper/012:16:460
2763999160,15cyclictest0-21swapper/012:04:210
2764999151,1cyclictest0-21swapper/311:39:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional