Re: UDP question

On Sep 13, 11:05 pm, David Schwartz <dav...@xxxxxxxxxxxxx> wrote:
On Sep 12, 11:37 pm, Jack <junw2...@xxxxxxxxx> wrote:

I wrote a simple UDP client using sendto and a simple UDP server using
recvfrom.
When I run both the client and server on the same machine, about 25
percent UDP messages are dropped. If I run the client and server on
different machines, only a few UDP messages are dropped.
What is the problem?

When you detect packet loss, you need to slow down. The problem is
that your code has no transmit pacing. On different machines, the
network paces transmissions for you to some extent.

DS

The UDP client is very simple. It is just sendto within a for loop,
like:
for(int i =0; i < 1000; i++)
{
sendto();
}

Is the sending rate of running the UDP client and server on the same
machine different from that of running the UDP client and server on
two different machines?

Thanks.

.

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