You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-09 - 00:55

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 #2

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.

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 rack7slot2s.osadl.org (updated Wed Apr 08, 2026 12:48:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207473899268150,100cyclictest2122041-21ntp_kernel_pll_11:16:120
207473899266164,69cyclictest2113769-21ssh10:36:570
207473899265148,80cyclictest2112042-21latency_hist10:30:050
207473899265148,80cyclictest2112042-21latency_hist10:30:050
207473899264138,111cyclictest2076900-21ntp_offset07:21:250
207473899264138,111cyclictest2076900-21ntp_offset07:21:250
207473899261142,102cyclictest0-21swapper/008:46:450
207473899261142,102cyclictest0-21swapper/008:46:450
207473899260138,107cyclictest2087697-21ntp_kernel_pll_08:26:130
207473899260138,107cyclictest2087697-21ntp_kernel_pll_08:26:120
207473899258147,92cyclictest2122534-21kworker/u10:0-rpciod11:42:510
207473899257149,95cyclictest0-21swapper/007:35:340
207473899257148,93cyclictest0-21swapper/011:06:260
207473899257148,93cyclictest0-21swapper/011:06:260
207473899257147,97cyclictest2100926-21timerandwakeup09:36:580
207473899257147,97cyclictest2100926-21timerandwakeup09:36:580
207473899256138,103cyclictest2106037-21sh10:01:230
207473899255144,96cyclictest2124300-21sh11:26:270
207473899255130,74cyclictest0-21swapper/010:25:070
207473899254161,79cyclictest0-21swapper/011:50:350
207473899254146,94cyclictest2086982-21proc_pri08:21:470
207473899254146,94cyclictest2086982-21proc_pri08:21:470
207473899254140,94cyclictest2082238-21kworker/u10:1-rpciod09:15:320
207473899252139,98cyclictest0-21swapper/011:31:320
207473899251148,88cyclictest151ktimers/012:01:150
207473899251147,87cyclictest0-21swapper/012:16:590
207473899251139,94cyclictest2094026-21latency_hist09:05:060
207473899251139,94cyclictest2094026-21latency_hist09:05:050
207473899251126,86cyclictest2109165-21ssh10:16:030
207473899251126,86cyclictest2109165-21ssh10:16:020
207473899250144,70cyclictest2103903-21collect209:51:290
207473899250144,70cyclictest2103903-21collect209:51:290
207473899250138,94cyclictest2130085-21kworker/u10:5-events_unbound12:15:000
207473899250131,99cyclictest9150irq/87-eth%d07:50:100
207473899250131,99cyclictest9150irq/87-eth%d07:50:100
207473899249170,66cyclictest2084956-21/usr/sbin/munin08:10:580
207473899249169,67cyclictest2115311-21latency_hist10:45:060
207473899249160,57cyclictest171rcu_preempt10:10:310
207473899249160,57cyclictest171rcu_preempt10:10:300
207473899249145,90cyclictest2075770-21/usr/sbin/munin07:15:330
207473899249145,90cyclictest2075770-21/usr/sbin/munin07:15:330
207473899248159,57cyclictest171rcu_preempt08:06:110
207473899248144,87cyclictest0-21swapper/010:06:510
207473899248144,87cyclictest0-21swapper/010:06:510
207473899248138,96cyclictest2121122-21ld11:11:490
207473899247158,72cyclictest2059348-21kworker/u10:0-rpciod07:26:530
207473899247158,72cyclictest2059348-21kworker/u10:0-rpciod07:26:530
207473899247145,87cyclictest0-21swapper/011:21:540
207473899247142,84cyclictest2091402-21kworker/u10:11-rpciod08:51:060
207473899247142,84cyclictest2091402-21kworker/u10:11-rpciod08:51:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional