You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-20 - 18:54

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 Sat Jun 20, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3053929578,13sleep10-21swapper/107:08:141
3061329366,9sleep30-21swapper/307:09:143
2997929264,6sleep20-21swapper/207:05:272
3055528977,8sleep00-21swapper/007:08:270
254052670,0sleep0141rcu_preempt09:49:290
168592610,0sleep30-21swapper/309:44:203
30769993028,1cyclictest0-21swapper/310:34:143
30767992927,1cyclictest23562-21diskmemload11:43:232
3076799280,27cyclictest0-21swapper/209:18:382
3076799280,0cyclictest0-21swapper/211:32:232
3076099270,0cyclictest0-21swapper/009:52:130
3076499261,4cyclictest25-21ksoftirqd/112:04:221
3076099260,1cyclictest0-21swapper/010:38:410
30764992516,2cyclictest241rcuc/110:48:081
3076499240,24cyclictest241rcuc/112:22:091
3076499240,24cyclictest241rcuc/112:22:091
3076099240,2cyclictest0-21swapper/009:35:010
3076099240,1cyclictest0-21swapper/009:56:050
108112240,1chrt0-21swapper/012:15:110
3076799230,1cyclictest0-21swapper/211:54:322
3076499231,18cyclictest0-21swapper/109:00:131
3076099230,1cyclictest0-21swapper/010:47:050
3076099230,1cyclictest0-21swapper/010:07:070
30764992217,3cyclictest25-21ksoftirqd/109:40:101
30764992212,10cyclictest0-21swapper/111:35:491
3076099220,1cyclictest0-21swapper/012:21:360
3076099220,1cyclictest0-21swapper/012:21:360
3076799210,0cyclictest0-21swapper/210:15:032
30764992120,1cyclictest25-21ksoftirqd/111:03:411
30764992120,1cyclictest0-21swapper/112:18:081
3076499211,19cyclictest241rcuc/112:14:121
3076799200,11cyclictest0-21swapper/212:13:572
3076799200,0cyclictest0-21swapper/210:42:032
3076799200,0cyclictest0-21swapper/210:42:032
30764992019,1cyclictest241rcuc/109:58:481
30764992019,1cyclictest0-21swapper/109:34:461
30764992015,4cyclictest23562-21diskmemload10:24:561
30764992010,2cyclictest25-21ksoftirqd/110:57:131
3076099205,7cyclictest7851-21munin-run07:30:000
3076099200,3cyclictest0-21swapper/011:23:030
3076099200,1cyclictest0-21swapper/011:51:020
3076099200,0cyclictest0-21swapper/009:12:380
30769991918,1cyclictest39-21ksoftirqd/311:09:533
3076799194,9cyclictest225-21systemd-journal08:35:002
3076799191,1cyclictest55850irq/129-enp2s0-09:58:022
3076799190,19cyclictest0-21swapper/209:14:082
3076799190,0cyclictest0-21swapper/208:48:142
3076499192,2cyclictest0-21swapper/110:08:051
30764991916,1cyclictest0-21swapper/112:32:061
3076099190,1cyclictest0-21swapper/010:43:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional