You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-16 - 04:44

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 #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.
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 rack1slot2s.osadl.org (updated Tue Jun 16, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1279523625,0sleep30-21swapper/318:48:513
1309623425,0sleep20-21swapper/218:52:222
1297423221,0sleep00-21swapper/018:50:560
1281122925,0sleep10-21swapper/118:49:011
339960,0migration/31496-21taskset22:23:273
339960,0migration/31424-21sh23:24:593
339960,0migration/312966-21munin-node21:32:503
339960,0migration/310016-21sh22:50:153
29715060,0irq/26-eth0-rx-4639-21gltestperf21:27:483
29715060,0irq/26-eth0-rx-4035-21df_abs21:47:463
29715060,0irq/26-eth0-rx-27665-21interrupts00:02:483
29715060,0irq/26-eth0-rx-27665-21interrupts00:02:483
29715060,0irq/26-eth0-rx-0-21swapper/321:02:473
179960,0migration/16338-21kthreadcore20:22:511
149960,0migration/03412-21latency_hist21:07:340
149960,0migration/018224-21sh22:14:280
149960,0migration/018213-21sh23:16:150
131909960,0cyclictest0-21swapper/223:52:462
131909960,0cyclictest0-21swapper/223:52:462
131909960,0cyclictest0-21swapper/223:27:322
131909960,0cyclictest0-21swapper/200:10:162
131899960,0cyclictest0-21swapper/123:41:121
4150,0ktimersoftd/00-21swapper/021:23:290
4150,0ktimersoftd/00-21swapper/021:09:560
35150,0ktimersoftd/30-21swapper/321:09:563
339950,0migration/35989-21kthreadcore23:27:503
339950,0migration/34898-21aten_r1power_cu20:47:453
339950,0migration/34501-21taskset20:45:483
339950,0migration/33958-21kthreadcore19:32:503
339950,0migration/328187-21taskset21:22:423
339950,0migration/327517-21latency_hist19:27:343
339950,0migration/32726-21latency_hist23:07:343
339950,0migration/321300-21kthreadcore20:07:523
339950,0migration/321094-21irqrtprio21:57:503
339950,0migration/320608-21latency19:42:523
339950,0migration/320109-21diskmemload21:17:373
339950,0migration/318571-21sh20:55:413
339950,0migration/317894-21munin-node21:52:573
339950,0migration/315116-21hddtemp_smartct19:17:483
339950,0migration/315113-21munin-node20:02:533
339950,0migration/314598-21kthreadcore22:12:503
339950,0migration/314346-21kthreadcore23:52:513
339950,0migration/314346-21kthreadcore23:52:513
339950,0migration/314174-21hddtemp_smartct18:52:473
339950,0migration/311745-21idleruntime23:12:503
339950,0migration/311340-21aten_r1power_cu22:32:443
339950,0migration/310741-21aten_r1power_po20:27:443
29725050,0irq/27-eth0-tx-3614-21munin-node21:07:472
29725050,0irq/27-eth0-tx-29633-21munin-node20:17:520
29725050,0irq/27-eth0-tx-27804-21chrt19:27:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional