Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Optimal stream packet size

Posted on 2004-04-05
1
Medium Priority
?
187 Views
Last Modified: 2010-04-05
I am streaming data from a TMemoryStream to clients using the following code.

  m.Seek(0,soFromBeginning);
  repeat
      begin
      {Play}
      Count := m.read(b,1024);
      AThread.Connection.WriteBuffer(b,count,True);
      sleep(5);
      end;
    until count<>1024;

What are your suggestions on the size of the data to send? 1024 bytes seems rather small. Typically the entire memory stream will be at least 5 megs. Normally the data will only be transferred on a LAN
0
Comment
Question by:rbohac
[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
1 Comment
 
LVL 11

Accepted Solution

by:
shaneholmes earned 200 total points
ID: 10761896
1024 is the block norm, but testing your app and adjusting according will be the best method of determining the optimization for your application & network, watching your CPU & memory resources to determine the optimal.

I would add the capability of editing the value from a options dialog or such, and making this value persistent to the registry.

This way, users can change the value to optimize it to their network


 Count := m.read(b, gBufSize);


Unit UntReg;

interface

uses Windows, Registry, Classes, SysUtils;

procedure ReadRegistry;
procedure WriteRegistry;

var
 gBuffSize: Integer;
 
implementation

procedure WriteRegistry;
var
 Reg: TRegistry;
begin
  Reg := TRegistry.Create;
  try
    Reg.RootKey := HKEY_CURRENT_USER;
    if Reg.OpenKey('\Software\YourCompanyName\YourAppName\', True) then
    begin
      Reg.WriteInteger('Buffer Size', gBufSize);
      Reg.CloseKey;
    end;
  finally
    Reg.Free;
  end;
end;

procedure ReadRegistry;
var
 Reg: TRegistry;
begin
  Reg := TRegistry.Create;
  try
    Reg.RootKey := HKEY_CURRENT_USER;
    if Reg.OpenKey('\Software\YourCompanyName\YourAppName\', True) then
    begin
     if Reg.ValueExists('Buffer Size') then
       gBufSize := Reg.ReadInteger('Buffer Size');
      Reg.CloseKey;
    end;
  finally
    Reg.Free;
  end;
end;

initialization
  begin
    ReadRegistry;
  end;

finalization
begin
  WriteRegistry;
end;

end.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
Suggested Courses

722 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