You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-04-02 - 05:15

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 #a, slot #5

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
  TI
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.

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 20 highest latencies:
System rackaslot5s.osadl.org (updated Wed Apr 02, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811110,0rcu_preempt54-21kswapd021:40:141
811060,0rcu_preempt19-21ksoftirqd/122:30:551
811030,0rcu_preempt19-21ksoftirqd/119:18:151
811010,0rcu_preempt19-21ksoftirqd/123:53:431
10050830,0irq/346-4848400111rcuc/000:05:240
10050780,0irq/346-4848400111rcuc/022:40:170
10050760,0irq/346-4848400111rcuc/023:10:100
10050740,0irq/346-484840041ktimersoftd/000:25:200
10050740,0irq/346-48484000-21swapper/022:07:370
81730,0rcu_preempt3-21ksoftirqd/021:47:230
10050730,0irq/346-484840054-21kswapd000:11:500
81700,0rcu_preempt3-21ksoftirqd/023:59:220
81700,0rcu_preempt3-21ksoftirqd/022:25:290
81700,0rcu_preempt3-21ksoftirqd/000:21:390
10050700,0irq/346-484840054-21kswapd022:12:310
81680,0rcu_preempt19-21ksoftirqd/122:19:261
81680,0rcu_preempt19-21ksoftirqd/122:17:461
81680,0rcu_preempt19-21ksoftirqd/100:31:591
81660,0rcu_preempt3-21ksoftirqd/023:24:220
81660,0rcu_preempt3-21ksoftirqd/023:24:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional