From: Ryan Pavlik <rpav@...>
Date: 2003-04-04T05:48:53+09:00
Subject: read/write slow, and TCPSocket and sys{read,write}

OK, so I'm throwing things back and forth over the network.  Marshalled
objects, to be exact.  The problem is, this is _slow_.  And the problem
is read/write, as far as I can tell.

For instance, I can marshal and send 1000 objects, and receive 1000
replies, in a fraction of a second.  However, if I send them one-by-one,
it takes minutes!   Same code on both ends for the test.  What gets sent
is a 4-byte network-order length, followed by the data.

So, at the suggestion from #ruby-lang, I tried sysread/syswrite.  Except
TCPSocket doesn't seem to want to let me use those... I get an IOError
about sysread on a buffered stream.  (And no, I'm not using any buffered
functions myself, like #read, #write, #print, etc... only 4 calls, 2
sysreads, 2 syswrites.)

My main problem is the slowness.  The sysread/syswrite bit was just a
hopeful solution.  Anyone have any ideas?

Thanks.

-- 
Ryan Pavlik <rpav@users.sf.net>

"I've got a crude stabbing implement right here with
 your name all over it." - 8BT