You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-09 - 03:36

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 #8

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 rackcslot8s.osadl.org (updated Thu Jul 09, 2026 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391690,30ptp4l0-21swapper/019:05:130
111391670,5ptp4l0-21swapper/419:06:374
133882630,0sleep3401ktimersoftd/321:15:013
111391610,5ptp4l0-21swapper/119:05:041
81952600,0sleep30-21swapper/321:05:153
245402570,1sleep4481ktimersoftd/421:28:234
1787425634,7sleep30-21swapper/319:06:303
1812825544,7sleep20-21swapper/219:09:492
1624025342,6sleep70-21swapper/719:05:067
111391490,5ptp4l0-21swapper/519:05:115
1784824838,6sleep60-21swapper/619:06:096
111391340,0ptp4l0-21swapper/123:12:511
111391330,2ptp4l0-21swapper/019:50:170
111391330,1ptp4l9280-21if_enp0s2500:35:120
111391330,0ptp4l0-21swapper/022:01:080
111391320,0ptp4l0-21swapper/023:59:240
111391320,0ptp4l0-21swapper/021:25:110
111391310,2ptp4l0-21swapper/121:37:021
111391310,2ptp4l0-21swapper/121:37:021
111391310,0ptp4l0-21swapper/521:11:125
111391310,0ptp4l0-21swapper/519:45:095
111391310,0ptp4l0-21swapper/023:05:030
111391310,0ptp4l0-21swapper/022:27:470
111391300,0ptp4l0-21swapper/722:40:197
111391300,0ptp4l0-21swapper/523:42:045
111391300,0ptp4l0-21swapper/423:40:594
111391300,0ptp4l0-21swapper/423:15:194
111391300,0ptp4l0-21swapper/422:51:344
111391300,0ptp4l0-21swapper/421:40:104
111391300,0ptp4l0-21swapper/421:40:094
111391300,0ptp4l0-21swapper/400:13:574
111391300,0ptp4l0-21swapper/400:13:564
111391300,0ptp4l0-21swapper/321:31:213
111391300,0ptp4l0-21swapper/120:30:191
111391300,0ptp4l0-21swapper/023:21:160
111391300,0ptp4l0-21swapper/022:13:110
111391300,0ptp4l0-21swapper/021:22:020
111391300,0ptp4l0-21swapper/021:13:120
111391300,0ptp4l0-21swapper/000:28:160
111391290,0ptp4l0-21swapper/423:56:164
111391290,0ptp4l0-21swapper/423:32:374
111391290,0ptp4l0-21swapper/323:26:483
111391290,0ptp4l0-21swapper/121:46:151
111391290,0ptp4l0-21swapper/121:14:161
111391290,0ptp4l0-21swapper/023:16:220
111391290,0ptp4l0-21swapper/022:56:200
111391280,0ptp4l0-21swapper/423:20:414
111391280,0ptp4l0-21swapper/100:25:111
111391280,0ptp4l0-21swapper/023:45:120
111391280,0ptp4l0-21swapper/022:52:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional