You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-10 - 14:55

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 #3

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 rack5slot3s.osadl.org (updated Wed Dec 10, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231102240162,24sleep10-21swapper/107:06:071
231642236165,23sleep30-21swapper/307:06:513
234032205167,25sleep00-21swapper/007:09:540
233062202178,16sleep20-21swapper/207:08:432
421921750,4sleep02350499cyclictest08:50:160
2949321460,3sleep22351699cyclictest08:35:132
23516991153,109cyclictest13069-21sendmail_mailst07:55:242
23516996359,3cyclictest0-21swapper/210:15:412
186432440,1sleep20-21swapper/210:35:232
23504994111,14cyclictest27642-21munin-run09:45:010
255422360,4sleep081ktimersoftd/010:50:260
23516993633,2cyclictest0-21swapper/211:06:022
23504993617,16cyclictest32681-21munin-run11:10:010
2351699331,22cyclictest0-21swapper/211:58:042
2350499335,13cyclictest22615-21perf08:20:020
36932320,2sleep10-21swapper/111:15:201
2352199323,20cyclictest0-21swapper/307:15:273
23516993228,3cyclictest0-21swapper/209:33:302
23516993211,6cyclictest473-21hddtemp_smartct09:55:182
2350999321,29cyclictest0-21swapper/108:10:141
2351699314,12cyclictest7319-21cstates11:25:142
23516993111,4cyclictest86550irq/126-enp1s0-09:35:152
2350499311,14cyclictest2807-21munin-run07:35:000
2352199302,15cyclictest401ktimersoftd/312:25:023
2350499301,14cyclictest7553-21munin-run12:40:020
2351699298,5cyclictest31568-21grep09:50:272
2351699298,5cyclictest31568-21grep09:50:272
2351699297,9cyclictest7063-21perl10:10:172
2351699296,13cyclictest674-21taskset12:22:452
2351699295,9cyclictest14546-21/usr/sbin/munin11:40:172
2351699294,14cyclictest15306-21/usr/sbin/munin10:30:232
2351699292,15cyclictest13096-21gltestperf09:10:162
23516992910,7cyclictest19398-21df_inode09:25:122
2350999291,18cyclictest26619-21users08:25:261
2351699289,7cyclictest10924-21users11:30:272
2351699285,12cyclictest86750irq/128-enp1s0-10:26:382
2351699282,15cyclictest26948-21/usr/sbin/munin12:10:222
2351699281,11cyclictest0-21swapper/207:52:122
23516992810,5cyclictest5907-21df12:35:152
2350999281,17cyclictest11972-21ntp_states10:20:221
2350499280,13cyclictest7213-21basename07:45:000
2350499280,13cyclictest7213-21basename07:45:000
129632280,6sleep011-21rcuc/009:10:150
2351699278,5cyclictest9295-21sshd07:48:542
2351699277,11cyclictest11715-21irqstats10:20:182
2351699275,6cyclictest12236-21diskmemload12:26:132
2351699275,10cyclictest17916-21perf11:50:012
23516992711,6cyclictest1334-21/usr/sbin/munin11:10:172
2350999274,3cyclictest0-21swapper/111:13:571
2350499272,12cyclictest1875-21munin-run10:00:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional