You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-31 - 16:51

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 Fri Jul 31, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2012721260,0sleep20-21swapper/209:44:082
200429264,9sleep30-21swapper/307:06:373
215629164,9sleep00-21swapper/007:08:360
195128676,6sleep20-21swapper/207:05:552
200228564,6sleep10-21swapper/107:06:361
2352992928,1cyclictest32-21ksoftirqd/211:52:362
235599250,1cyclictest0-21swapper/309:25:093
234899250,24cyclictest0-21swapper/111:40:111
235599231,1cyclictest0-21swapper/311:24:213
235599230,0cyclictest0-21swapper/311:17:303
235299230,4cyclictest0-21swapper/210:06:522
235299230,22cyclictest0-21swapper/211:17:012
235299230,21cyclictest0-21swapper/211:34:072
235599220,22cyclictest0-21swapper/311:39:433
235299221,21cyclictest0-21swapper/209:18:152
234899220,1cyclictest0-21swapper/111:28:071
2343992220,1cyclictest0-21swapper/009:18:150
234399220,4cyclictest141rcu_preempt09:30:450
235299210,1cyclictest0-21swapper/212:39:202
2348992117,4cyclictest38150irq/131-snd_hda11:05:261
234399210,1cyclictest0-21swapper/011:35:290
234899201,18cyclictest13799-21sh11:16:501
235299190,1cyclictest0-21swapper/211:58:532
235299190,19cyclictest0-21swapper/212:06:422
234899199,6cyclictest22272-21munin-plugin-st12:40:001
2348991916,2cyclictest0-21swapper/109:50:321
2348991915,3cyclictest0-21swapper/110:39:561
2348991915,3cyclictest0-21swapper/110:39:551
234399190,3cyclictest0-21swapper/009:41:130
235599183,2cyclictest27378-21diskmemload09:23:193
2355991817,1cyclictest0-21swapper/309:50:143
235599180,1cyclictest0-21swapper/311:54:173
235299180,3cyclictest0-21swapper/209:47:512
2348991815,2cyclictest0-21swapper/112:26:391
2348991815,2cyclictest0-21swapper/112:26:381
234899180,2cyclictest0-21swapper/112:31:061
234899180,18cyclictest0-21swapper/110:59:561
234399180,1cyclictest0-21swapper/010:47:580
234399180,18cyclictest0-21swapper/011:34:070
2352991715,1cyclictest0-21swapper/210:55:142
235299170,0cyclictest0-21swapper/210:46:432
234899171,15cyclictest31654-21latency_hist10:30:001
234899170,3cyclictest0-21swapper/111:46:121
234899170,2cyclictest0-21swapper/110:19:281
234399170,1cyclictest0-21swapper/010:09:320
234399170,16cyclictest0-21swapper/010:51:340
235599162,9cyclictest0-21swapper/312:15:063
235299163,11cyclictest2557-21vmstat10:50:262
235299161,14cyclictest0-21swapper/211:03:442
235299160,2cyclictest0-21swapper/211:09:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional