You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-11-23 - 17:19

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 #9, 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.
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 20 highest latencies:
System rack9slot4s (updated Sat Nov 23, 2024 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202459911841169,10cyclictest20682-21diskstats07:25:141
202459911841169,10cyclictest20682-21diskstats07:25:131
202449911561125,18cyclictest20681-21diskstats07:25:130
202449911561125,18cyclictest20681-21diskstats07:25:130
198382562517,30sleep10-21swapper/107:21:181
201742460416,29sleep00-21swapper/007:24:510
20792820,4sleep00-21swapper/012:20:190
5262600,8sleep12024599cyclictest12:15:271
176822600,2sleep017684-21uname11:35:210
231442590,8sleep02024499cyclictest10:20:220
210702550,11sleep12024599cyclictest10:15:191
246922450,5sleep1211ktimersoftd/111:55:121
20245993926,10cyclictest22-21ksoftirqd/109:30:231
174022392,32sleep117485-21memory10:05:231
165202381,34sleep130944-21snmpd08:35:291
20245993722,12cyclictest22-21ksoftirqd/111:05:221
117302371,31sleep011751-21/usr/sbin/munin09:50:240
2024499361,22cyclictest14314-21ps08:30:270
227602350,2sleep022759-21aten_r4power_en11:50:100
20245993528,4cyclictest22-21ksoftirqd/107:40:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional