You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-05 - 04:02

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 #e, 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
  
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 rackeslot5s.osadl.org (updated Sat Sep 05, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10043993318,14cyclictest0-21swapper/121:51:281
10043992721,5cyclictest8459-21ssh00:10:321
10043992721,5cyclictest8459-21ssh00:10:321
10043992625,1cyclictest0-21swapper/122:01:351
1004399260,25cyclictest0-21swapper/122:28:421
1004399260,1cyclictest2821-21/usr/sbin/munin23:36:291
1004399260,1cyclictest0-21swapper/123:15:031
1004399260,1cyclictest0-21swapper/122:22:501
1004899250,24cyclictest3690-21diskmemload23:41:363
1004899250,24cyclictest18841-21sh20:35:003
1004499250,2cyclictest832-21apache200:00:002
1004499250,24cyclictest6984-21ssh23:10:052
10043992523,2cyclictest0-21swapper/123:23:081
10043992522,2cyclictest10293-21sh22:14:191
10043992520,4cyclictest0-21swapper/121:21:291
1004399250,24cyclictest3690-21diskmemload22:55:151
1004399250,24cyclictest1837-21ssh00:33:521
1004399250,24cyclictest0-21swapper/122:53:551
1004399250,24cyclictest0-21swapper/122:32:431
1004399250,24cyclictest0-21swapper/121:39:561
1004399250,21cyclictest11623-21apt-get21:46:271
1004399250,21cyclictest11623-21apt-get21:46:271
1004399250,21cyclictest0-21swapper/100:07:241
1004399250,0cyclictest0-21swapper/121:15:161
1003899250,24cyclictest606-21dbus-daemon21:05:010
1003899250,24cyclictest2294-21ssh23:06:160
10048992423,0cyclictest0-21swapper/321:22:253
10048992422,1cyclictest15396-21ssh23:16:473
10048992422,1cyclictest0-21swapper/322:59:003
1004899241,22cyclictest0-21swapper/300:20:013
1004899240,23cyclictest3690-21diskmemload21:58:263
1004899240,23cyclictest31024-21apt-get00:31:303
1004899240,23cyclictest0-21swapper/323:32:303
1004899240,23cyclictest0-21swapper/322:46:283
1004899240,1cyclictest7085-21grep23:40:013
1004899240,1cyclictest3690-21diskmemload22:50:083
1004899240,1cyclictest14528-21sh21:48:083
1004899240,1cyclictest14528-21sh21:48:083
10044992423,1cyclictest19850-21ssh21:23:272
10044992422,1cyclictest0-21swapper/223:50:562
10044992420,4cyclictest0-21swapper/223:08:482
1004499240,24cyclictest0-21swapper/221:47:102
1004499240,24cyclictest0-21swapper/221:47:102
1004499240,23cyclictest5860-21perf22:40:012
1004499240,23cyclictest3690-21diskmemload21:39:202
10043992422,2cyclictest0-21swapper/123:33:291
10043992422,2cyclictest0-21swapper/122:19:331
10043992422,1cyclictest0-21swapper/122:48:001
10043992421,2cyclictest0-21swapper/100:19:381
10043992420,4cyclictest0-21swapper/120:51:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional