Solved

AIX, nmon, and network utilization

Posted on 2011-09-07
2
1,356 Views
Last Modified: 2013-11-17
Below is a screenshot using nmon (with the network option):

 Network ---------------------------------------------------------------------¦
¦I/F Name Recv=KB/s Trans=KB/s packin packout insize outsize Peak->Recv TransKB¦
¦    en0  133627.5  139348.6 125766.9 133310.9 1088.0 1070.4    192420.6 170788¦
¦    lo0       0.0       0.0      0.0      0.

Open in new window

'eno' is a 10GB network adapter.

I assume that since I have about 135 MB/s, and that I have to
divide the 10GB by 8 to get a the numbers of btes
(10 GB adapter is 10 GBits, not bytes) that this calc will bive me
my network utilization.

Therefore I assume I have about a 10.8 percent network utilization

Is this correct ?
0
Comment
Question by:Los Angeles1
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 36499295
Well,

because there are roundabout 130 MB/sec received and 136 MB/sec transmitted there is an overall utilization of some 20.7 percent.

Dividing by 8 is of course correct.

Please be aware that this calculated utilization is not caused by pure payload, but also by protocol overhead at the diverse layers and also by possible retransmits.

wmp
0
 
LVL 68

Accepted Solution

by:
woolmilkporc earned 500 total points
ID: 36499523
Taking the mandatory full-duplex mode of 10 Gb Ethernet into account you could actually say that the overall bandwith utilization is indeed just 10,7 percent!
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When you do backups in the Solaris Operating System, the file system must be inactive. Otherwise, the output may be inconsistent. A file system is inactive when it's unmounted or it's write-locked by the operating system. Although the fssnap utility…
Introduction Regular patching is part of a system administrator's tasks. However, many patches require that the system be in single-user mode before they can be installed. A cluster patch in particular can take quite a while to apply if the machine…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question