🚀 go-pugleaf

I would like to know some "throughput" values of the transputer-host
link.

When I use iserver, writing 1k blocks to the host gives me a performance
of about 20k per second.  Using smaller blocks results in very reduced
performance.

I wrote a small program to measure only transfer speed by reading data
directly from the link.  The maximum throughput was about 110k per
second.  I think the difference results in iserver being a single
threaded server, so it can't receive new packets while it processes
packets, which reduces performance a lot.

All values were measured with Linux 0.98.pl1 and GCC 2.2.2d on a 386-20
without processor cache.  My machine has about 4500 dhrystones (at good
days:).  I expect a linear speed win with faster machines, because the
link bandwidth is miles away from being a bottleneck.  Some assembler
code would help a lot too for sure.

Please respond via e-mail with specification of your hardware, OS,
performance with 1k blocks using iserver and by directly accessing the
link over the OpenLink and ReadLink functions.  If I get enough results,
I will post a summary.

Michael

PS: A new release is being prepared, including tas, tlk and tld!!