Re: [U-Boot] http client?

On Wed 22 Jul 2009 18:00, Alessandro Rubini pondered:

...

When I looked at the RFC data it appears that the overhead of IP fragmentation and reassembly (which does add overhead as the number of gateways increases) may be worth the time...

Just tried it: U-Boot doesn't support reassembly, it seems.

I don't think anyone said it did.

net.c confirms it:

            /* Can't deal with fragments */
            if (ip->ip_off & htons(IP_OFFS | IP_FLAGS_MFRAG)) {
                    return;
            }

I don't think it's worth adding.

This is based on ... ?

If it reduces download time by 1/2 (1432 byte block size == 13.70 seconds, 4096 byte block size == 6.85 seconds) it might be worth the complexity...

At least worth it enough to give it a try, gather some results, and then make a decision.

-Robin