You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-05 - 18:32

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 Wed Aug 05, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3160129986,9sleep00-21swapper/007:08:350
3147629266,9sleep20-21swapper/207:06:552
3153028972,13sleep10-21swapper/107:07:391
3159928370,9sleep30-21swapper/307:08:333
31799993129,1cyclictest0-21swapper/210:08:582
3179999290,28cyclictest0-21swapper/212:21:032
3179999280,27cyclictest0-21swapper/210:12:112
31792992719,4cyclictest225-21systemd-journal12:00:010
3179999240,24cyclictest0-21swapper/209:14:262
3179999240,23cyclictest0-21swapper/209:39:362
3179799240,23cyclictest14826-21diskmemload12:00:291
3179799240,23cyclictest0-21swapper/111:00:121
3179299230,19cyclictest0-21swapper/009:16:540
3179999220,22cyclictest0-21swapper/211:29:042
3179799220,19cyclictest0-21swapper/110:54:191
3179999213,18cyclictest0-21swapper/210:34:302
3179999210,19cyclictest0-21swapper/210:50:312
31802992020,0cyclictest0-21swapper/309:44:173
31802992017,2cyclictest39-21ksoftirqd/310:17:413
3180299201,18cyclictest0-21swapper/311:35:013
3180299200,1cyclictest0-21swapper/311:17:313
3179999200,20cyclictest0-21swapper/209:17:222
3180299190,18cyclictest0-21swapper/309:46:593
3179799190,18cyclictest0-21swapper/108:45:001
3179299190,16cyclictest0-21swapper/011:49:160
31799991816,2cyclictest32-21ksoftirqd/210:17:242
31797991812,5cyclictest29737-21ssh09:21:101
3179799180,1cyclictest0-21swapper/110:02:361
31792991814,1cyclictest0-21swapper/012:05:480
3179299180,1cyclictest0-21swapper/010:06:310
31792991717,0cyclictest0-21swapper/010:12:190
3179299170,2cyclictest0-21swapper/011:43:180
311352170,0sleep20-21swapper/209:46:352
31802991615,1cyclictest32264-21kworker/3:111:26:033
3180299160,16cyclictest0-21swapper/310:07:233
3179999162,1cyclictest141rcu_preempt09:31:232
3179999160,1cyclictest0-21swapper/210:21:352
3179799167,6cyclictest25-21ksoftirqd/110:17:251
31797991613,1cyclictest0-21swapper/111:09:221
31797991611,4cyclictest25-21ksoftirqd/109:39:391
31797991611,1cyclictest25-21ksoftirqd/109:16:011
3179299164,6cyclictest17133-21perf11:15:000
3179299163,1cyclictest0-21swapper/010:17:140
3179299160,2cyclictest0-21swapper/012:36:590
3179299160,1cyclictest0-21swapper/011:51:070
3179299160,1cyclictest0-21swapper/010:39:080
3179299160,13cyclictest0-21swapper/009:51:480
3180299152,3cyclictest0-21swapper/312:15:143
31802991514,1cyclictest0-21swapper/310:58:243
31802991514,1cyclictest0-21swapper/310:53:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional