Link to home
Start Free TrialLog in
Avatar of adi-acm
adi-acm

asked on

How to retry on socket select?

Hi,
In client side I am using async sockets to connect to the server. I have 300 clients connecting to the server. If 100 or more clients try to send a message at a time, many of the socket clients are timing out. I have client pseudo code some thing like this...

loop 3 times
     /////socket init

     connect....

     if connect returns WSAEWOULDBLOCK
           use socket select after random time between 1-2 sec.
      if success return

end loop

How do maximize the number of successful connects?
Avatar of Akumas
Akumas

probably reason is that windows socket cache size is limited, only 64K.
if you send too many udp packets at same time, packets will be ignored when cache if full.
for tcp stream, all data will wait until cache is available again.

unfortunately, windows socket cache seems can't be changed...
if you just want to test your server performance, try to put your clients to different PCs.
Avatar of adi-acm

ASKER

All the clients are different PCs. I run the test using a script. I am using TCP streams. Client tries for 15 seconds to get a connection after that retry logic stop trying for connection.
ASKER CERTIFIED SOLUTION
Avatar of Akumas
Akumas

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial