You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-03 - 21:05

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 #4

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 rackeslot4s.osadl.org (updated Wed Sep 03, 2025 12:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281165993532,2cyclictest456789-21kworker/u8:5+events_unbound11:20:183
281165993329,3cyclictest441367-21kworker/u8:2+events_unbound09:45:233
281155993328,3cyclictest312271-21kworker/u8:0+flush-259:008:15:161
281155993327,4cyclictest291422-21latency_hist07:20:011
281165993226,4cyclictest524710-21latency_hist11:05:013
281165993225,5cyclictest447099-21/usr/sbin/munin09:50:143
281152993224,7cyclictest567034-21kworker/u8:1+flush-259:012:05:000
281165993127,3cyclictest577144-21kworker/u8:0+events_unbound12:00:003
281165993127,3cyclictest462554-21kworker/u8:0+flush-259:010:30:003
281165993127,3cyclictest348062-21kworker/u8:3+flush-259:008:50:013
281165993127,3cyclictest2407252-21kworker/u8:3+flush-259:007:15:173
281165992925,3cyclictest348062-21kworker/u8:3+flush-259:008:50:233
281165992925,3cyclictest260749-21kworker/u8:5+events_unbound07:20:143
281155992924,3cyclictest441905-21/usr/sbin/munin09:45:161
281155992922,4cyclictest3754036-21systemd-journal12:10:001
281152992926,2cyclictest456789-21kworker/u8:5+flush-259:011:54:590
281152992922,5cyclictest597284-21ntpq12:10:220
281165992825,2cyclictest322357-21kworker/u8:2+events_unbound07:55:213
281165992824,3cyclictest332612-21kworker/u8:1+flush-259:008:15:003
281165992723,3cyclictest353897-21kworker/u8:4+events_unbound09:05:003
281165992723,3cyclictest281322-21kworker/u8:1+flush-259:007:40:253
281152992722,4cyclictest441660-21latency_hist09:45:010
281165992623,2cyclictest593025-21kworker/u8:0+flush-259:012:35:133
281165992623,2cyclictest567034-21kworker/u8:1+flush-259:011:45:153
281159992623,2cyclictest472920-21kworker/u8:1+flush-259:010:35:172
281155992623,2cyclictest353897-21kworker/u8:4+flush-259:009:25:001
281155992620,4cyclictest566807-21latency_hist11:45:001
281165992522,2cyclictest472920-21kworker/u8:1+events_unbound10:30:183
281165992522,2cyclictest472920-21kworker/u8:1+events_unbound10:15:153
281165992522,2cyclictest281322-21kworker/u8:1+flush-259:007:30:213
281165992521,3cyclictest582920-21kworker/u8:2+events_unbound12:05:193
281165992520,3cyclictest353897-21kworker/u8:4+flush-259:008:25:183
281155992521,3cyclictest582382-21gpgv12:00:001
281155992519,4cyclictest619430-21/usr/sbin/munin12:35:131
281165992422,2cyclictest348062-21kworker/u8:3+flush-259:009:10:213
281165992421,2cyclictest363981-21kworker/u8:1+events_unbound08:41:503
281165992420,3cyclictest363981-21kworker/u8:1+flush-259:008:55:223
281159992420,3cyclictest322357-21kworker/u8:2+flush-259:008:05:012
281155992420,3cyclictest260749-21kworker/u8:5+flush-259:007:14:591
281152992418,5cyclictest461425-21ntpq10:00:200
281152992417,5cyclictest571128-21ntpq11:45:210
281152992417,5cyclictest556057-21latency_hist11:35:000
281165992320,2cyclictest348062-21kworker/u8:3+flush-259:009:05:323
281165992319,3cyclictest525369-21kworker/u8:3+flush-259:011:30:183
281165992319,3cyclictest312271-21kworker/u8:0+flush-259:008:05:163
281165992315,6cyclictest614037-21latency_hist12:30:013
281159992317,4cyclictest503240-21ntpq10:40:262
281155992320,2cyclictest456789-21kworker/u8:5+events_unbound11:50:201
281155992319,3cyclictest348062-21kworker/u8:3+flush-259:009:05:161
281155992316,5cyclictest3754036-21systemd-journal11:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional