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1996-10-10
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ΓòÉΓòÉΓòÉ 1. Lynn's WorkPlace IP Thruput Chart ΓòÉΓòÉΓòÉ
Lynn's WorkPlace IP Thruput Chart
What Is It?
Disclaimer
Installation
Usage Hints
Benefits Of Registration
Registration Form
This book replaces the "readme" file traditionally included with shareware
products. It contains the previously listed sections as well as all of the
help associated with the various windows of LWPChart. Feel free to browse the
pages at will or simply double click on Installation for a quick introduction
to the installation process.
ΓòÉΓòÉΓòÉ 1.1. What Is It? ΓòÉΓòÉΓòÉ
LWPChart is a TCP/IP and CPU monitor utility providing throughput and error
indications in small, unobtrusive windows on your desktop. If you've ever
wondered just what your Internet link was doing when things seem slow, this
could be what you're looking for.
Each of the charts comprising LWPChart (see following list) has a similar
layout. The title bar identifies each window. The display in each client area
comprises a graph and a pair of numbers on the left hand side. The display is
updated every two seconds. The width of the graph represents four minutes of
data (120 pixels at 2 seconds/pixel).
The currently supported windows are:
Memory/Swap
CPU/Swap
IP Pkts
IP Thru
Tcp GvB
Various windows may, under certain circumstances, change either foreground or
background colors. The meanings of these changes are discussed in the
description pages for the various windows.
Further information may be obtained by double-clicking on the client area of
each window -- this will cause the appearance of the Max Values box reporting
the scale of the graph window and the highest reported value in the graph
along with the current Minimum, Maximum, and Average for the currently visible
data.
Lynn's WorkPlace IP Chart is a shareware application. If you don't know what
all that means, look it up elsewhere. The fundamentals are that the software
is yours to evaluate for a "reasonable" time (I estimate 2-4 weeks is
"reasonable"). After your evaluation, you are expected to either remove the
software and quit using it, or register it.
Why Register? Well, the best reason is to compensate authors for work that
you find useful and valuable. But what's in it for you? Double-click here to
find out.
To register, send $10.00 (US) to:
Mr. Lynn W. Deffenbaugh
Homeside Software, Inc.
P.O. Box 100453
Palm Bay, FL 32910-0453
USA
To get the latest version of LWPFTP, just check out the web page at
http://www.teamos2.org/homeside/lwpchart.
ΓòÉΓòÉΓòÉ 1.2. Disclaimer ΓòÉΓòÉΓòÉ
LWPChart is delivered as-is. While the author would appreciate problem
reports, there is no requirement or warranty for fixing supposed problems or
delivering such fixes if they are done.
There is no warranty on LWPChart, express or implied, including any implied
warranty of merchantability and fitness for a particular purpose. However,
some areas do not allow the exclusion of implied warranty, so the above
exclusion may not apply to you.
The author (and any distributors) assume no liability for damages, direct or
consequential, which may result from using LWPChart, even if advised of the
possibility of such damages. In addition, the author assumes no liability for
damages claimed by you based on a third-party claim.
ΓòÉΓòÉΓòÉ 1.3. Credits ΓòÉΓòÉΓòÉ
A very large Thank You is extended to my loyal Beta testers. This especially
goes to the members of the Space Coast OS/2 User's Group for giving me the
encouragement to actually complete this utility and release it.
Here's the full list of 1.0 testers.
Ron Couts
Dan Fisher
Sean Payne
Trase Rowland
ΓòÉΓòÉΓòÉ 2. Installation ΓòÉΓòÉΓòÉ
To install LWPChart, simply copy the .EXE to a directory contained on your PATH
(like C:\OS2) and the .HLP to a directory contained in your HELP environment
variable (like C:\OS2\HELP). To get LWPChart to auto-start each time your
system boots, either place a program object (or shadow of the .EXE) in your
Startup folder or add the line "start lwpchart" to your STARTUP.CMD file.
ΓòÉΓòÉΓòÉ 3. Registration Form ΓòÉΓòÉΓòÉ
Please register ____ copies of LWPChart @ $10.00 (US) each. Total ___________
I have version _____ which I downloaded from __________________________________
Name: ______________________________________________________________________
Address: ______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
Email: ______________________________________________________________________
Phone: ______________________________________________________________________
Send my registration key via: ____ Email (preferred) or ____ Snail Mail
Mail this form (filled in, of course) along with a check (drawn on a US
bank or an official bank draft), money order, or cash (I have a secure
mailbox) for the total shown above (in US funds) to:
Mr. Lynn W. Deffenbaugh
c/o Homeside Software, Inc.
P.O. Box 100453
Palm Bay, FL 32910-0453
Your registration key should be issued within two weeks of receipt of your
completed registration form (allowing time for the check to clear).
For registration inquiries, just drop me an email (to lwpchart@homeside.com)
with "Registration" in the subject.
Thank you for registering!
ΓòÉΓòÉΓòÉ 4. Usage Hints ΓòÉΓòÉΓòÉ
As usage hints and questions (with answers) become available, they will be
posted on the WWW at http://www.teamos2.org/homeside/lwpchart.
ΓòÉΓòÉΓòÉ 5. Dialog Help ΓòÉΓòÉΓòÉ
The following sections contain the help panels for the various windows and
dialogs used by the LWPChart package.
ΓòÉΓòÉΓòÉ 5.1. Memory/Swap Window ΓòÉΓòÉΓòÉ
Graph The graph in this window displays currently free memory as
reported by OS/2 not including free swap space. The scale of
this graph is dynamically scaled. As memory free space
increases, the scale of the graph will decrease so that the
details of the changing memory use may be more easily seen.
Should the free memory decrease, the scale will increase in
response. The memory level must change markedly for a period
of 30 sec for this rescaling to take place.
Top Number The top number in the display on the left side of the client
area displays the amount of free RAM in your system. It is
quite normal for this number to reduce to 512K and hover
there. This indicates that OS/2 is using the swap file. A
low number displayed here may not, in fact, be a problem
since OS/2 counts memory as "inuse" if it knows that is
loaded there. This may be discardable resources that will
never be referenced again. However, if this number
continually alternates colors and hovers at 512K, you could
probably use more RAM (also know as "mo-ram").
Bottom Number The bottom number is the current size of your swapfile as
identified by the SWAPPATH statement in the CONFIG.SYS file
on your current boot drive. If this statement has been
modified since the last bootstrap, this number will not be
correctly reported.
Max Values The box displays the current graph scale and the highest
recorded memory free in bytes. The Average value is
informative if you have a constantly changing available
memory graph for the past four minutes.
ΓòÉΓòÉΓòÉ 5.2. CPU/Swap Window ΓòÉΓòÉΓòÉ
Graph The graph in this window displays CPU usage as a percent of
maximum. This window does not rescale, but maintains a
FullScale = 100% scale. The heavier the load on the CPU, the
higher the graph. The graph is updated every two seconds as
a rule (see the section on colors below).
Top Number The top number in the display on the left side of the client
area displays the amount of free RAM in your system. It is
quite normal for this number to reduce to 512K and hover
there. This indicates that OS/2 is using the swap file. A
low number displayed here may not, in fact, be a problem
since OS/2 counts memory as "inuse" if it knows that is
loaded there. This may be discardable resources that will
never be referenced again. However, if this number
continually alternates colors and hovers at 512K, you could
probably use more RAM (also know as "mo-ram").
Bottom Number The bottom number is the current size of your swapfile as
identified by the SWAPPATH statement in the CONFIG.SYS file
on your current boot drive. If this statement has been
modified since the last bootstrap, this number will not be
correctly reported.
Colors Normally the color of the numbers in this window are black on
white. They turn to green and white when the system is more
idle than has yet been encountered. Normally, the program
awakens to measure the values displayed every two seconds.
If the time to awaken is more than one clock-tick (0.031 sec)
late, the numbers change to red on white to alert you to
this. This may happen if the OS is busy doing something of
higher priority at the appointed wakeup time. Should the
time to awaken be more than one clock-tick early, the numbers
will change to magenta on white to reflect this. Often, if
OS/2 wakes up a process late, it will attempt to compensate
by awakening it the next time early, so you will often
observe a change to red numbers followed by a change to
magenta numbers.
Black Normal
Green New maximum idle time detected.
Red Wakeup was delayed to more than 2000
milliseconds.
Pink (actually Magenta) Wakeup was shorter than
2000 milliseconds.
Max Values The scale of the graph in this window does not change and
will always be 100. The Min, Max, and Avg values may be
informative, however.
Note: At times, this graph may begin displaying a steady, non-zero, busy
percentage. This frequently occurs after a period of heavy system loading and
indicates that LWPChart has detected an invalid maximum idle measurement.
Simply close and restart LWPChart if this occurs. Note also that active
Windoze and/or DOS applications may indicate 100% CPU consumption until they
are terminated. Closing and restarting LWPChart will not affect this
indication.
ΓòÉΓòÉΓòÉ 5.3. IP Pkts Window ΓòÉΓòÉΓòÉ
Graph The graph displays the total PPS (Packets per Second)
exchanged, both transmitted and received. The scale of this
graph is dynamically scaled. As traffic increases, the scale
of the graph will decrease so that the details of the
changing traffic may be more easily seen. Should the traffic
decrease, the scale will increase in response. The traffic
level must change markedly for a period of 30 sec for this
rescaling to take place.
Top Number The top number displays the current Received PPS.
Bottom Number The bottom number displays the current Transmitted PPS.
Background
White Normal
Blue (Dark) Graph recently rescaled to show a larger
value.
Blue (Light) (actually Cyan) Graph recently rescaled to
show a smaller value.
Max Values The box displays the current graph scale and the highest
recorded Total (Transmitted plus Received) PPS. The Average
value is informative if you have been actively communicating
(for instance, a large FTP transfer) for the past four
minutes.
Note: These graphs show the health of the TCP/IP connection to the internet.
They cannot be used to evaluate how good or bad your modem connection might be
beyond the effect of the connected baud rate.
ΓòÉΓòÉΓòÉ 5.4. IP Thru Window ΓòÉΓòÉΓòÉ
Graph This window's graph displays the IP throughput in bytes per
second. The scale of this graph is dynamically scaled. As
traffic increases, the scale of the graph will decrease so
that the details of the changing traffic may be more easily
seen. Should the traffic decrease, the scale will increase
in response. The traffic level must change markedly for a
period of 30 sec for this rescaling to take place.
Top Number The top number in this window shows the current bytes per
second received.
Bottom Number The bottom number shows the current bytes per second
transmitted.
Background
White Normal
Blue (Dark) Graph recently rescaled to show a larger
value.
Blue (Light) (actually Cyan) Graph recently rescaled to
show a smaller value.
Max Values The box displays the current graph scale and the highest
recorded Total (Transmitted plus Received) PPS. The Average
value is informative if you have been actively communicating
(for instance, a large FTP transfer) for the past four
minutes.
Note: These graphs show the health of the TCP/IP connection to the internet.
They cannot be used to evaluate how good or bad your modem connection might be
beyond the effect of the connected baud rate.
ΓòÉΓòÉΓòÉ 5.5. TCP GvB Window ΓòÉΓòÉΓòÉ
Graph The graph plots the ratio of bad to total bytes at the TCP
layer. It is graphed as a percentage. It is calculated as
the number of bad bytes per second divided by the total bytes
per second (good bytes per second plus bad bytes per second),
the quotient multiplied by 100 to represent a percentage.
For a solid connection, this graph should generally be empty.
Note, however, that when connected to the Internet, it is
normal for there to be a spike of bad packets when making and
breaking connections. This spike has nothing to do with how
good (or bad) your IP connection is. Also, read the note
below.
Top Number The top number in this window shows the current bytes per
second received.
Bottom Number The bottom number shows the current bytes per second
transmitted.
Background
White Normal
Blue (Dark) Graph recently rescaled to show a larger
value.
Blue (Light) (actually Cyan) Graph recently rescaled to
show a smaller value.
Max Values The box displays the current graph scale and the highest
recorded Total (Transmitted plus Received) PPS. The Average
value is informative if you have been actively communicating
(for instance, a large FTP transfer) for the past four
minutes.
Note: There are some Internet sites which average 50% of bad vs. total bytes.
These sites have a retransmission factor that does not account for the fact
that you may be sitting on a relatively slow connection, and will not wait
sufficiently long for your ACK. This problem is often encountered on sites
run under the Solaris OS, and is a bug in that OS. A workaround for the
problem may be found at:
http://access1.sun.com/cgi-bin/info2html?faqs/185402.faq
I encourage you, when you encounter such a site, to email the server
administrator of the site with a reference to the above URL.
Note: These graphs show the health of the TCP/IP connection to the internet.
They cannot be used to evaluate how good or bad your modem connection might
be. Retries and/or dropped packets at the modem level do not appear in the
TCP statistics.
ΓòÉΓòÉΓòÉ 5.6. LWPChart Settings ΓòÉΓòÉΓòÉ
This is the LWPChart Settings Dialog. From this dialog you can select which
charts you wish to see. You can also disable the startup about dialog so that
it does not appear. This dialog is displayed by double-clicking the
right-mouse-button (RMB) on any chart or selecting "Properties" from any
chart's system menu.
Note: You must have at least one chart selected. If you deselect the last
chart, a warning box will appear and the chart will be reselected
automatically.
Note: When a chart is deselected, there will be a delay of up to two seconds
as the window is destroyed on the next update interval. If the CPU is 100%
busy, this delay may be longer due to the idle thread taking a while to
terminate.
This dialog is only available to registered users.
ΓòÉΓòÉΓòÉ 5.7. Registration ΓòÉΓòÉΓòÉ
Why Register? Well, the best reason is to compensate authors for work that you
find useful and valuable. But what's in it for you is:
LWPChart will not automatically exit after one hour.
The splash dialog will auto-close two seconds after startup.
Settings will be available (double RMB click) to select window options.
You will receive automatic e-mail notification as updates are available.
To register, send this form and $10.00 (US) to:
Mr. Lynn W. Deffenbaugh
Homeside Software, Inc.
P.O. Box 100453
Palm Bay, FL 32910-0453
USA
To get the latest version of LWPFTP, just check out the web page at
http://www.teamos2.org/homeside/lwpchart.
Note: Ten percent (10%, a full Biblical tithe) of all gross registration
receipts will be donated to charities for the poor and homeless.