From: "J.Herre" Date: 2004-02-14T04:21:33+09:00 Subject: Re: slow IO On Feb 13, 2004, at 10:55 AM, David King Landrith wrote: > We're using Redhat's most recent linux (on a Dual Athlon with 2GB > RAM). Why would you think I was using Windows from the example? > Sorry, no offense intended. I read this as a forward slash, i.e. a windows command line switch. My bad. system("echo \f >> #{outputFile}") It's possible that you're wasting time in the garbage collector. Try using a static buffer: buf = input.sysread( count, buf )