You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-27 - 10:17

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 #0, 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 rack0slot3s.osadl.org (updated Fri Jun 26, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40556792269259,6sleep20-21swapper/219:09:192
40553142269260,6sleep50-21swapper/519:07:055
40551232269261,5sleep10-21swapper/119:05:481
40530542266257,6sleep30-21swapper/319:05:023
40555692259235,15sleep60-21swapper/619:08:356
40556532248225,14sleep70-21swapper/719:09:087
40551212247222,17sleep00-21swapper/019:05:470
40557462246221,16sleep40-21swapper/419:09:444
405617399510,44cyclictest0-21swapper/119:16:411
4056196995028,15cyclictest0-21swapper/622:59:326
4056191994614,31cyclictest528-21systemd-journal19:16:415
405617399462,44cyclictest0-21swapper/123:54:391
405616999440,7cyclictest0-21swapper/019:47:390
405617399436,30cyclictest0-21swapper/119:47:391
4056173994220,15cyclictest0-21swapper/122:59:321
4056191994113,21cyclictest884-21switcheroo-cont19:47:395
405619699393,15cyclictest879-21polkitd19:47:396
4056187993733,2cyclictest4102329-21StreamT~s4
4056173993633,2cyclictest1390-21snmpd00:05:211
4056178993528,5cyclictest0-21swapper/223:27:082
4056200993433,1cyclictest1390-21snmpd19:36:547
4056187993127,2cyclictest0-21swapper/422:50:234
4056178993117,14cyclictest1390-21snmpd19:34:182
4056169993129,2cyclictest0-21swapper/021:03:090
4056196993021,8cyclictest879-21polkitd19:16:416
405616999308,15cyclictest0-21swapper/023:54:380
4056200992928,1cyclictest1390-21snmpd00:12:277
405619699290,15cyclictest2476588-21gnome-shell20:25:266
4056187992928,1cyclictest0-21swapper/419:30:394
4056187992922,5cyclictest528-21systemd-journal20:50:344
405618299290,22cyclictest39274-21pkla-check-auth23:54:393
405617899298,7cyclictest40750irq/143-i91519:47:392
405619199286,21cyclictest2483101-21soffice.bin20:25:265
405619199286,15cyclictest528-21systemd-journal23:54:395
4056187992827,1cyclictest0-21swapper/419:47:504
4056187992821,5cyclictest528-21systemd-journal20:00:054
4056187992821,5cyclictest4122944-21irqstats_LOC20:55:144
4056187992820,5cyclictest2480894-21Isolated17:27:364
4056178992827,1cyclictest0-21swapper/223:20:592
4056178992827,1cyclictest0-21swapper/221:03:082
405616999280,28cyclictest0-21swapper/023:20:590
4056191992726,1cyclictest2476621-6KMS17:27:365
4056187992724,3cyclictest2476588-21gnome-shell20:42:594
4056187992723,4cyclictest0-21swapper/400:30:574
4056187992722,3cyclictest31593-21cat23:40:174
405617399270,25cyclictest0-21swapper/120:32:281
4056196992625,1cyclictest0-21swapper/619:12:596
4056191992622,3cyclictest1390-21snmpd00:22:275
4056191992620,5cyclictest1390-21snmpd00:39:465
405619199260,23cyclictest0-21swapper/519:39:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional