[Vortex] Send a file via Multiple MSG/RPY exchanges?

Francis Brosnan Blazquez francis at aspl.es
Tue Oct 14 19:07:06 CEST 2008

Hi Chris,

> Would if be faster to send a file via multiple MSG/RPY exchanges
> (break the file into chunks, each chunk gets sent via a MSG/RPY
> exchange and the chunks are re-assembled on the other end) OR would it
> be faster to use 1 MSG/ANS/NUL exchange to send the file?

Sending via MSG/ANS..NUL is faster by design since the sender do not
have to wait for an incoming MSG to issue the next RPY. That is, no wait
until next MSG received to issue next RPY. 

However, selecting carefully the MSG size, and the channel window size
for the receiver, makes both methods to have similar performance. 

This makes sense since both methods are constrained to SEQ frames
exchanged which also controls stops performed (no buffer available to
keep on sending)...


> Thanks!
> Chris
Francis Brosnan Blazquez <francis at aspl.es>
Advanced Software Production Line, S.L.

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