You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-18 - 21:07

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 #2, 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.

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 rack2slot7s.osadl.org (updated Thu Dec 18, 2025 07:55:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
725519996752,11cyclictest1034164-21fstime05:55:100
725521995446,5cyclictest1529793-21sh06:09:502
725519995347,4cyclictest1532946-21sh06:09:570
725521995244,5cyclictest976684-21sh05:41:162
725519995240,9cyclictest1564482-21sort06:11:120
725520994942,4cyclictest1542553-21sh06:10:191
725521994840,5cyclictest1566028-21sh06:11:152
725520994842,3cyclictest0-21swapper/105:34:451
725520994842,3cyclictest0-21swapper/105:34:451
725520994840,5cyclictest1532433-21sh06:09:561
725520994825,3cyclictest171rcu_preempt05:41:191
725519994832,11cyclictest858471-21spawn05:34:480
725519994832,11cyclictest858471-21spawn05:34:480
725521994638,5cyclictest1613367-21cron06:25:002
725520994640,3cyclictest0-21swapper/105:50:011
725519994537,6cyclictest0-21swapper/005:39:410
725519994432,8cyclictest0-21swapper/005:49:400
725519994429,11cyclictest1037451-21Run06:01:400
725519994335,5cyclictest1034140-21Run05:53:370
725519994330,10cyclictest733452-21kworker/u8:9-xprtiod05:42:270
725521994235,4cyclictest950611-21tee05:40:022
725521994235,3cyclictest722907-21kworker/u8:7-rpciod05:15:012
725519994231,8cyclictest1611903-21basename06:20:000
725519994124,13cyclictest725657-21latency_hist05:05:020
725521994035,2cyclictest0-21swapper/205:49:402
725521993930,6cyclictest731933-21kworker/u8:4-xprtiod05:35:002
725521993930,6cyclictest731933-21kworker/u8:4-xprtiod05:35:002
725521993930,6cyclictest1250895-21spawn06:03:382
725520993930,4cyclictest0-21swapper/105:39:401
725519993933,4cyclictest1614752-21unixbench_multi06:29:510
725519993930,7cyclictest724203-21kworker/u8:18-rpciod05:28:120
725519993930,7cyclictest724203-21kworker/u8:18-rpciod05:28:120
725521993829,6cyclictest1034080-21fstime05:51:242
725520993829,6cyclictest724202-21kworker/u8:17-rpciod06:30:011
72552199371,6cyclictest171rcu_preempt05:29:432
72552199371,6cyclictest171rcu_preempt05:29:432
725520993729,5cyclictest1616207-21tail06:34:521
725520993729,5cyclictest1446822-21spawn06:04:251
725519993729,6cyclictest151ktimers/005:24:460
725519993728,6cyclictest674-21gdbus06:39:460
725520993628,5cyclictest1035690-21fstime05:57:501
725520993627,6cyclictest564-21dbus-daemon05:25:011
725521993529,3cyclictest0-21swapper/205:57:502
725520993527,5cyclictest1611902-21awk06:20:001
725520993526,5cyclictest1034039-21execl05:50:081
725519993427,4cyclictest730115-21cron05:20:010
725520993323,7cyclictest1617768-21/usr/sbin/munin06:40:021
725520993322,7cyclictest564-21dbus-daemon05:27:131
725520993322,7cyclictest564-21dbus-daemon05:27:131
725521993226,3cyclictest0-21swapper/205:24:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional