You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-16 - 04:02

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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Thu Apr 16, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7772750,3sleep20-21swapper/219:52:052
7772750,3sleep20-21swapper/219:52:052
102812690,3chrt0-21swapper/220:17:102
102812690,3chrt0-21swapper/220:17:102
102812690,3chrt0-21swapper/220:17:102
32092660,2sleep13210-21grep21:22:211
32092660,2sleep13210-21grep21:22:211
303412660,3chrt0-21swapper/221:09:122
303412660,3chrt0-21swapper/221:09:122
18421996154,4cyclictest0-21swapper/000:02:030
18421996154,4cyclictest0-21swapper/000:02:030
18421996154,4cyclictest0-21swapper/000:02:030
326482520,2sleep132652-21uptime19:47:221
326482520,2sleep132652-21uptime19:47:221
321822520,4sleep10-21swapper/122:42:091
321822520,4sleep10-21swapper/122:42:091
314202500,3sleep131424-21latency_hist00:07:071
314202500,3sleep131424-21latency_hist00:07:071
314202500,3sleep131424-21latency_hist00:07:071
303022490,3sleep30-21swapper/300:02:153
303022490,3sleep30-21swapper/300:02:153
303022490,3sleep30-21swapper/300:02:153
18421994929,18cyclictest0-21swapper/022:01:590
18421994929,18cyclictest0-21swapper/022:01:590
1842199491,9cyclictest32097-21taskset21:12:300
1842199491,9cyclictest32097-21taskset21:12:300
232842480,3sleep30-21swapper/322:17:143
232842480,3sleep30-21swapper/322:17:143
17912480,3sleep10-21swapper/122:47:111
73862470,3sleep20-21swapper/200:27:182
73862470,3sleep20-21swapper/200:27:182
317092460,3chrt0-21swapper/319:47:123
317092460,3chrt0-21swapper/319:47:123
1842199462,5cyclictest124372sleep023:15:250
178162460,3chrt0-21swapper/120:37:111
178162460,3chrt0-21swapper/120:37:111
178162460,3chrt0-21swapper/120:37:111
18421994532,9cyclictest0-21swapper/000:02:180
18421994532,9cyclictest0-21swapper/000:02:180
18421994532,9cyclictest0-21swapper/000:02:180
18421994522,21cyclictest869-21/usr/sbin/munin19:52:090
18421994522,21cyclictest869-21/usr/sbin/munin19:52:090
1842199451,7cyclictest11764-21chrt20:20:460
1842199451,7cyclictest11764-21chrt20:20:460
1842199451,7cyclictest11764-21chrt20:20:460
1842199451,6cyclictest18512-21chrt22:03:290
1842199451,6cyclictest18512-21chrt22:03:290
1842199451,6cyclictest18512-21chrt22:03:290
18421994219,21cyclictest0-21swapper/022:17:220
18421994219,21cyclictest0-21swapper/022:17:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional