You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-10 - 03:46

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 #1, slot #6

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
  Intel
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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot6s.osadl.org (updated Wed Dec 10, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2437991060,9rtkit-daemon0-21swapper/023:37:300
320419910326,35cyclictest0-21swapper/218:57:562
320419910242,15cyclictest0-21swapper/221:27:352
32037998135,38cyclictest1369-21runrttasks21:58:050
243799790,4rtkit-daemon2436-21rtkit-daemon22:47:401
243799750,8rtkit-daemon0-21swapper/123:58:593
243799740,12rtkit-daemon21-21ksoftirqd/120:54:593
284712710,4sleep128469-21cat00:12:101
32037996944,18cyclictest9631-21processes20:07:470
243799690,11rtkit-daemon0-21swapper/020:38:070
32037996823,37cyclictest25574-21grep19:32:570
32037996716,31cyclictest0-21swapper/021:02:340
32037996639,20cyclictest18645-21taskset21:35:460
32037996614,34cyclictest0-21swapper/021:27:520
243799660,8rtkit-daemon0-21swapper/123:59:220
32037996523,35cyclictest12302-21grep22:27:490
243799650,7rtkit-daemon0-21swapper/120:43:590
243799650,6rtkit-daemon31572-21users20:52:520
243799650,4rtkit-daemon2436-21rtkit-daemon19:18:330
32041996428,29cyclictest0-21swapper/218:42:422
32037996414,34cyclictest0-21swapper/019:52:440
32037996413,43cyclictest0-21swapper/022:07:150
243799640,7rtkit-daemon21-21ksoftirqd/123:35:000
243799640,6rtkit-daemon6308-21sed21:07:510
243799640,5rtkit-daemon7604-21users22:17:480
32037996324,32cyclictest12693-21grep21:22:360
32037996314,34cyclictest1243-21snmpd20:17:330
32037996314,34cyclictest1243-21snmpd20:17:330
32037996313,42cyclictest0-21swapper/022:37:150
32037996313,32cyclictest0-21swapper/019:02:540
32037996310,45cyclictest0-21swapper/019:12:410
243799630,9rtkit-daemon0-21swapper/120:59:593
243799630,9rtkit-daemon0-21swapper/120:59:593
243799630,7rtkit-daemon0-21swapper/121:53:120
243799630,10rtkit-daemon0-21swapper/121:40:350
243799630,10rtkit-daemon0-21swapper/121:40:350
3204199624,46cyclictest0-21swapper/221:52:462
32037996243,14cyclictest1243-21snmpd22:47:050
32037996216,39cyclictest0-21swapper/023:42:420
32037996216,29cyclictest0-21swapper/019:42:450
32037996215,39cyclictest22303-21crond22:52:120
32037996215,26cyclictest27266-21iostat_ios19:37:450
32037996210,44cyclictest0-21swapper/018:52:430
32037996210,44cyclictest0-21swapper/018:52:430
243799620,6rtkit-daemon26818-21perl00:07:290
243799620,6rtkit-daemon18-21rcuc/123:17:230
243799620,5rtkit-daemon9005-21gltestperf22:22:330
243799620,5rtkit-daemon9005-21gltestperf22:22:330
243799620,5rtkit-daemon1491-21df_inode22:07:340
32037996114,40cyclictest0-21swapper/020:57:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional