You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-02 - 07:23

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 #5, 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: 50.5 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 rack5slot7s.osadl.org (updated Wed Jul 02, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10437224602200,101sleep00-21swapper19:07:040
10815991609,127cyclictest24008-21cat23:45:030
108159915913,121cyclictest15960-21munin-run19:40:020
108159915822,29cyclictest31520-21apt-get21:15:230
108159915820,23cyclictest18672-21apt-get23:15:500
108159915810,124cyclictest592-21latency_hist21:25:050
108159915718,115cyclictest17425-21memory23:05:490
108159915715,119cyclictest2820-21ntp_states21:35:510
108159915614,38cyclictest31291-21cat00:30:040
108159915614,27cyclictest24318-21/usr/sbin/munin20:30:500
108159915611,25cyclictest28027-21cat00:10:040
108159915519,36cyclictest20079-21apt-get20:05:150
108159915512,118cyclictest7446-21modprobe22:05:020
108159915510,120cyclictest11366-21cut19:10:580
108159915430,34cyclictest0-21swapper00:35:260
108159915414,117cyclictest12750-21apt19:20:020
108159915412,117cyclictest29013-21apt21:00:020
108159915412,116cyclictest25141-21ntpq23:50:460
108159915341,91cyclictest30109-21kernelversion21:05:410
108159915317,113cyclictest31039-21ntp_states21:10:520
108159915219,111cyclictest24782-21cat23:50:040
108159915219,104cyclictest14465-21apt-get19:30:200
108159915218,110cyclictest18674-21munin-run23:15:020
108159915216,114cyclictest22116-21munin-run23:35:010
108159915214,118cyclictest13058-21apt22:40:020
108159915213,22cyclictest11562-21/usr/sbin/munin22:30:480
10815991519,24cyclictest12873-21/usr/sbin/munin19:21:010
10815991518,118cyclictest1969-21/usr/sbin/munin21:30:530
108159915114,111cyclictest23192-21apt-get20:25:390
108159915113,26cyclictest584-21apt-get21:25:370
108159915111,120cyclictest9381-21memory22:15:500
108159915025,26cyclictest27185-21cut20:45:580
108159915019,105cyclictest13182-21apt-get22:40:230
108159915016,24cyclictest14295-21ntp_states22:45:520
108159915015,96cyclictest22341-21apt23:35:170
108159915013,39cyclictest13958-21sshd19:25:500
108159915013,23cyclictest10397-21find22:20:580
108159915012,34cyclictest22681-21uname20:20:410
108159915011,27cyclictest6441-21grep22:00:060
108159915010,27cyclictest8242-21latency_hist22:10:000
108159914929,23cyclictest26619-21/usr/sbin/munin00:00:380
108159914921,25cyclictest8345-21apt-get22:10:200
108159914918,109cyclictest31968-21head00:31:060
108159914912,25cyclictest27678-21if_eth020:50:350
108159914910,25cyclictest21017-21if_eth020:10:380
108159914828,22cyclictest0-21swapper21:01:030
108159914826,22cyclictest0-21swapper22:55:460
108159914818,25cyclictest22379-21munin-run20:20:020
108159914817,106cyclictest25652-21apt-get23:55:220
108159914817,103cyclictest29695-21apt-get00:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional