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Re: Unexpectedly low read/write performance of open-pipe

From: Rob Browning
Subject: Re: Unexpectedly low read/write performance of open-pipe
Date: Sun, 07 Apr 2019 13:45:49 -0500

Rob Browning <address@hidden> writes:

> While evaluating guile as a possibility to replace some python code,
> assuming I'm not just doing something wrong, I noticed that open-pipe
> appears to transfer data *much* more slowly than python when OPEN_BOTH is
> specified as opposed to OPEN_READ

Oh, and I should have mentioned the version:

  guile (GNU Guile) 2.2.4
  Packaged by Debian (2.2.4-deb+1-1)

For what it's worth, in an earlier round of testing I also hacked up
open-pipe to let me access the underlying ports and set their buffers to
65k.  That doubled the transfer rate, but of course, it's still fairly

Rob Browning
rlb and
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