You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-20 - 14:43

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 50 highest latencies:
System rack5slot3s.osadl.org (updated Fri Mar 20, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
276912238161,24sleep20-21swapper/207:06:262
276272222193,19sleep00-21swapper/007:05:360
278222203166,25sleep30-21swapper/307:08:093
277532203167,23sleep10-21swapper/107:07:141
1854321750,1sleep00-21swapper/010:25:170
830021280,1sleep10-21swapper/111:15:231
280669910991,15cyclictest20365-21chrt08:02:553
280669910991,15cyclictest20365-21chrt08:02:553
2806699109105,3cyclictest0-21swapper/311:35:523
2806699109105,3cyclictest0-21swapper/311:35:523
28066998380,2cyclictest0-21swapper/307:51:123
279642820,9sleep127962-21grep10:45:261
28066997167,3cyclictest0-21swapper/309:19:223
77012620,3sleep27703-21cpuspeed_turbos07:35:122
28066995855,2cyclictest0-21swapper/308:24:233
75022560,3sleep00-21swapper/008:45:250
35172540,2sleep10-21swapper/111:05:151
2806199421,28cyclictest0-21swapper/207:34:092
2806199391,14cyclictest0-21swapper/212:28:492
28066993835,2cyclictest0-21swapper/308:12:533
61932370,1sleep10-21swapper/107:30:171
28061993720,3cyclictest0-21swapper/207:13:012
2806199361,10cyclictest0-21swapper/208:32:482
28061993520,6cyclictest0-21swapper/212:13:212
2806199351,12cyclictest0-21swapper/210:44:472
2806199341,9cyclictest0-21swapper/208:39:512
2805499341,12cyclictest0-21swapper/109:32:531
2806199331,19cyclictest0-21swapper/211:53:412
2806199331,10cyclictest0-21swapper/208:24:192
2806199331,10cyclictest0-21swapper/208:17:472
147992330,4sleep121-21rcuc/111:30:191
28066993228,3cyclictest0-21swapper/308:46:073
2806699322,22cyclictest6259-21kworker/3:109:35:293
2806199321,9cyclictest0-21swapper/212:34:492
2806199321,8cyclictest0-21swapper/210:23:092
2806199321,8cyclictest0-21swapper/210:23:092
28061993218,3cyclictest0-21swapper/211:12:212
2806199321,11cyclictest0-21swapper/211:41:492
2806199321,10cyclictest0-21swapper/209:36:252
2806199321,10cyclictest0-21swapper/209:03:592
2805499326,8cyclictest14639-21fschecks_time07:50:131
2806199311,9cyclictest0-21swapper/210:09:372
2806199311,9cyclictest0-21swapper/209:57:452
2806199311,8cyclictest0-21swapper/210:56:412
2806199311,8cyclictest0-21swapper/210:25:092
28061993115,9cyclictest0-21swapper/211:21:532
2806199311,11cyclictest0-21swapper/210:04:532
2806199311,10cyclictest0-21swapper/210:14:592
2806199311,10cyclictest0-21swapper/208:58:232
2805499315,10cyclictest0-21swapper/111:55:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional