You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-05 - 06:29

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 Sep 05, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89229178,9sleep00-21swapper/019:05:570
115529167,8sleep20-21swapper/219:08:452
110428966,6sleep10-21swapper/119:08:081
93228771,9sleep30-21swapper/319:06:293
135099290,28cyclictest0-21swapper/300:39:173
134899280,28cyclictest0-21swapper/222:22:372
134899260,24cyclictest0-21swapper/200:04:122
134899240,23cyclictest0-21swapper/222:44:482
135099233,14cyclictest8107-21df_inode22:35:133
1344992319,3cyclictest0-21swapper/121:25:161
1344992319,3cyclictest0-21swapper/121:25:151
1344992318,2cyclictest225-21systemd-journal19:30:001
134499230,22cyclictest0-21swapper/121:53:411
12722230,0sleep30-21swapper/300:26:053
134899221,1cyclictest4028-21apt-get21:35:122
134899220,1cyclictest0-21swapper/222:34:222
134899220,19cyclictest0-21swapper/221:46:202
134499224,18cyclictest26347-21diskmemload23:25:161
1344992219,2cyclictest25-21ksoftirqd/119:45:131
134899210,21cyclictest0-21swapper/221:55:402
134899210,19cyclictest0-21swapper/221:28:112
134899210,19cyclictest0-21swapper/221:28:102
1344992115,5cyclictest12137-21sh23:55:021
1350992018,1cyclictest263512sleep322:26:173
1348992017,2cyclictest32-21ksoftirqd/221:21:512
134899200,20cyclictest0-21swapper/221:31:452
134899200,19cyclictest0-21swapper/223:40:132
134499203,17cyclictest0-21swapper/122:05:141
1344992019,1cyclictest26347-21diskmemload21:22:591
1344992015,4cyclictest26347-21diskmemload23:17:081
1344992011,8cyclictest0-21swapper/123:00:001
134099200,19cyclictest0-21swapper/023:40:130
1348991919,0cyclictest0-21swapper/221:15:072
1344991917,1cyclictest14813-21kworker/1:022:53:111
1344991917,1cyclictest0-21swapper/100:05:041
1344991914,5cyclictest31464-21ssh23:46:321
1340991918,1cyclictest0-21swapper/000:13:080
135099181,5cyclictest225-21systemd-journal23:26:433
1350991812,3cyclictest13942-21cpuspeed_turbos22:00:153
135099180,1cyclictest141rcu_preempt23:24:553
135099180,13cyclictest0-21swapper/323:01:483
1348991815,2cyclictest32-21ksoftirqd/200:15:182
134899181,1cyclictest141rcu_preempt23:04:162
134899180,18cyclictest0-21swapper/223:51:262
134899180,17cyclictest0-21swapper/221:14:492
134499189,6cyclictest0-21swapper/122:30:271
134499188,6cyclictest23837-21munin-run22:45:001
1344991816,1cyclictest26347-21diskmemload22:37:161
1344991814,4cyclictest25-21ksoftirqd/121:05:011
1344991814,3cyclictest23104-21sendmail00:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional