dataflow from non-haskell program

[Matthias Riese]

Hi!

My system is made up of a non-haskell program producing data and a
haskell programm consuming the data. Currently the non-haskell program
writes out the data using a Haskell "data" type format. The haskell
program uses "deriving Read" to read in the data.

Now the data flow shows up as a critical performance bottleneck: It
takes much much more time to read in the data than to process it.  So
I'd like to hear suggestions about how to speed it up. Any ideas?

TIA, Best Regards,
Matthias Riese